Creep Performance of Oxide Ceramic Fiber Materials at Elevated Temperature in Air and in Steam
The effects of steam on the creep performance for several ceramic materials were investigated at temperatures in the 1100-1300-C range. Experimental programs were designed to explore both tensile and compressive creep behaviors as well as the response in monotonic tension. Subcritical crack growth was determined to be the dominant failure mechanism in ceramic fibers at elevated temperatures in steam. The creep life prediction analysis of ceramic fiber tows was performed using linear elastic fracture mechanics and a power-law crack velocity model. Additionally, the effects of steam at 1300-C on creep performance of high-purity polycrystalline yttrium aluminum garnet (YAG) were studied. The high temperature mechanical properties of polycrystalline YAG make it the most promising candidate material oxide material for the next generation ceramic fiber.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Rapid Prototyping, Acquisition and Deployment of Technology Pushed Weapon Systems Using Nontraditional Acquisition Processes
With the explosion of technology driven systems and their ability to effectively meet military operational need it is imperative we in the acquisition community have the ability to rapidly acquire, deploy and support these potential life saving technological advancements. This paper will explore five non-traditional acquisition processes and use case studies to clarify and outline a defined process to best get new technology into the operators' hands in the most time efficient manner possible. This paper includes a description of the traditional acquisition process, five non-traditional acquisition processes, and the criteria a program must meet to gain access to these processes. The culmination of this effort is the identification and development of a rapid technology pushed weapon system acquisition and deployment checklist/process, and lessons learned from the Project Angel Fire and Predator case studies.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Robotics
New technology may be able to help answer the cries to reduce casualties resulting from friendly fire and collateral damage, as well as assist the military in performing urban operations. Unmanned vehicles, whether air, land or sea, are one means to get our airmen, soldiers, marines, and sailors out of harm's way and are most likely a key driver to an upcoming revolution in military affairs (RMA) for all services. The major objective of the paper is to bring attention to Tactical Mobile Robots (TMR) and hopefully encourage follow-on studies and to cultivate an enthusiasm to employ them correctly to help get our troops out of harms way and win battles. This study focuses primarily on the use of TMRs in the special operations environment. The paper discusses the current and immediate TMR capabilities; key logistics concerns regarding maintenance, supply, and transportation; and two possible scenarios, one in an unconstrained battlefield and the other in an urban environment. The data collected was primarily via conducting interviews and witnessing experiments and they highlight a few barriers, which must be addressed if unmanned platforms are to keep pace with congressional orders.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Investigation of the Effects of Target Feature Variations on Ballistic Missile RCS
Uncertainties in certain features of target geometries result in a loss of confidence in the signature assessment of the target. Knowledge of the impact to a target's radarcross section (RCS) due to changes to specific target features can assist to identifywhether uncertainty in a certain target feature warrants a loss of confidence in the targetsignature. This study will allow a development of a general "rule-of-thumb" on how theradar signature of a target varies as a function of the target's specific target features. Thetargets of interest which this study is centered around are fictitious ballistic missiles.Four target features that were investigated: fin size, nosecone shape, effect of panelriveting along the sides of the missile and the effects of heat shielding on the nosecone.By varying each of the four target features into a missile configuration and comparing toanother configuration, a relationship between specific target features and its effect on theradar cross section of a ballistic missile can be obtained. Based on the range of possibleconfigurations that target's feature can take, it is possible to estimate a range of possiblevalues of the radar signature. This will enable the user of the signature data to have abetter understanding of the target being assessed and target characteristics when acomplete knowledge of target configuration is unavailable.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Logging the JSF
Within the US Air Force, acquisition, operations, and logistics communities collectively face a perplexing question: What is the best way to plan the acquisition and life-cycle sustainment of a fighter aircraft fleet? To find the answer to this question the following thesis attempts to derive lessons learned from case study analysis to develop a new methodology for future use. Aircraft fleet size, in an acquisition program, is determined by assessing the capabilities necessary to meet current and future operational readiness demands. Aircraft sustainment, although equally important, is typically not considered during early procurement planning due to the difficulty in forecasting the sustainment infrastructure necessary to mitigate effects caused by aging and changing operational requirements. At best a nebulous endeavor, sustainment forecasting is affected by the myriad of dynamic organizational, technological, and budgetary influences caused by rigid DoD acquisition processes and inflexible Congressional appropriations cycles.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
In Vitro Toxicity of Aluminum Nanoparticles in Rat Alveolar Macrophages
Nanomaterials, which are by definition in the 1 - 100 nanometer range, have numerous possible benefits to society, but currently there is a lack of data that characterizes these materials effects on human health and environment. In general nanomaterials are of interest to the Air Force because of their applications in electronics, sensors, munitions and energetic/reactive systems. Nanoparticles such as aluminum have been considered for enhancing propulsion in solid rocket fuel. To date, only a few studies have looked at the toxicological effects of direct exposure to nanoparticles, none with aluminum. It is important to increase the understanding of the nanomaterial exposure health impact before these materials are throughout diverse levels of occupations or fully used in large capacities within industry and the military.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Shock Wave Dynamics of Novel Aluminized Detonations and Empirical Model for Temperature Evolution From Post-Detonation Combustion Fireballs
This research characterizes the blast wave and temperature evolution of an explosion fireball in order to improve the classification of aluminized conventional munitions based on a single explosive type such as RDX. A drag model fit to data shows initial shock velocities of 1.6-2.8 km/s and maximum fireball radii ranging from 4.3-5.8 m with most of the radii reached by 50 ms upon detonation. The Sedov-Taylor point blast model is fitted to data where a constant release (s=1) of energy upon detonation suggests shock energies of 0.5-8.9 MJ with blast dimensionalities indicative of the spherical geometry (n 3) observed in visible imagery. An inverse correlation exists between blast wave energy and overall aluminum content in the test articles. Using a radiative cooling term and a secondary combustion term, a physics-based empirical model is able to reduce 82 data points to five fit parameters to describe post-detonation combustion fireballs. The fit-derived heat of combustion has a 96% correlation with the calculated heat of combustion but has a slope of 0.49 suggesting that only half of the theoretical heat of combustion is realized. Initial temperature is not a good discriminator of detonation events but heat of combustion holds promise as a potential variable for event classification.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Retaining Army Engineer Officers
Policy and doctrine require the U.S. Army to provide certain capabilities during the conduct of stability operations. The Department of Defense now considers stability operations as critical to success as offensive and defensive operations. Operations that require technical engineer capabilities, specifically infrastructure reconstruction operations, require a portion of the engineer officer corps to possess a technical engineering education. Trends in officer accessions and retention indicate a shortfall in technical engineering education among the engineer officer corps, casting doubt in the ability of the Engineer Regiment to meet anticipated future requirements. Senior engineer leaders identified these conditions and initiated a campaign to increase technical competence within the regiment. This monograph contributes to this effort by identifying factors that affect the retention of engineer officers who possess engineering degrees. The results of a survey of engineer officers at Fort Leavenworth reveal these officers possess lower job satisfaction than officers who possess non-engineering degrees and officers across the Army. These officers are more likely to believe their experiences in the Army did not match their pre-commissioning expectations contributing to perceived "psychological contract violations." The monograph suggests leaders conduct a series of studies over time to assess the effects of initiatives to increase technical competence within the Engineer Regiment.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Study of Simulation Effectiveness in Modeling Heavy Combined Arms Combat in Urban Environments
During the Cold War, combined arms heavy force tactics dictated that forces should avoid urban areas when possible. However, since the beginning of Operation Iraqi Freedom, heavy forces have fought in every urban area in Iraq. The United States Army has clearly rediscovered combined arms heavy force tactics, but there currently exists no validated and effective live, virtual, or constructive training simulation to adequately prepare U.S. Army forces to deal with insurgents in urban terrain. This study examined selected simulations currently in use for training and analysis, compared them against urban warfare requirements derived from key historical battles, and recommended requirements for future simulations that will better prepare the nation's soldiers for the urban battlefield of today and tomorrow.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Information Warfare
As we approach the dawn of the 21st century, success of our national security strategy will depend greatly on our ability to combat the Information Warfare (IW) threat. Old paradigms regarding conventional warfare must change to incorporate this new form of warfare. Our nation's growing dependency on information and information-based technologies has made IW a legitimate weapon for potential adversaries. The "information" and its support infrastructures are becoming extremely vulnerable to hostile attacks. Adversarial forces can now wage information-based warfare from anywhere in the world, and literally remain anonymous. Thus, our ability to recognize and defend against this new form of warfare is paramount to the survival of our national security infrastructure.The thesis of this research project is predicated upon the following premises: First, the exploitation of "information" as a weapon is changing the nature of warfare. Second, although there is much debate about the reality of the IW threat, this paper postulates that adversarial IW tactics pose a legitimate threat to our national security infrastructure. Finally, the Department of Defense (DOD), the Joint Staff, and the Services must remain actively committed to combating the IW threat in the 21st century.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
A Simulation Based Methodology to Examine the B-1B's AN/ALQ-161 Maintenance Process
This thesis looks at the maintenance procedures associated with the defensive electronic counter measure (ECM) system on the B-1B, designated the AN/ALQ-161. Computer simulation of the current line-replaceable-unit (LRU) maintenance network for Ellsworth AFB and Dyess AFB is modeled. In addition, two hypothetical repair networks are proposed and analyzed. This research considers the applicability of this type of computer simulation, using ARENA software to study the AN/ALQ-161 repair system. The contribution of this research is a discrete simulation methodology specific to the AN/ALQ-161 LRU repair line. Two response variables of interest were addressed, work-in-process and machine utilization. A total of 20 different repair scenarios were analyzed for the three different LRU networks simulated. A best-case scenario is selected from each model and the results are compared to one another.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Evaluating Management Strategies for Automated Test Systems/Equipment
The management of United States Air Force ATS/E presents a variety of issues that affect the long-term capability and mission readiness of weapon systems. Traditional procurement processes suggest that individual aircraft platform System Program Offices (SPOs) developed, improved and replaced ATE on an "as-required" basis. Increased obsolescence, however, and a concern for maintaining longer-term viability provided the necessary inertia for a movement towards the procurement and development of consolidated, common test equipment that would support multiple weapon systems. In 1998, the Air Force Chief of Staff directed HQ AFMC to establish a Common Support Equipment office to facilitate the combination of similar legacy ATE into common equipment. Today, some ATE continues to be managed by individual SPOs, while other ATE is primarily managed by the Automated Test Systems Division at Warner-Robins Air Logistics Center. This research examines the differences of these two approaches. Specifically, this research focuses on the management of two pieces of ATE for a mature aircraft system - the F-15.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Extending the Strategy Based Risk Model Using the Delphi Method
The validation between a research and developmental satellite and its ground system is critical to ensuring the success on-orbit. However, the exact process for completing validation is not documented, frequently underfunded, and accomplished ad hoc. This leads to debate regarding maintenance of budget and schedule, while ensuring on-orbit success. This thesis examines readiness and on-orbit activities within the U.S. Air Force Space Development and Test Wings Research Development Test and Evaluation Support Complex. Combining historical data with the consultation of subject matter experts, a validation process was defined. Risks associated with this process were then analyzed using the Strategy Based Risk Model, and were evaluated based on the probability of occurrence and severity of impact.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Assessing Capabilities of the High Energy Liquid Laser Area Defense System Through Combat Simulations
High Energy Laser (HEL) technology continues to improve and its place in the battlefield is ever evolving. By combining the high energy delivery of solid state laser technology with the efficient thermal management of liquid laser technology, HELLADS has two main advantages over any HEL predecessors. One, the configuration is small and light enough to be carried on more tactical aircraft such as fighters. Two, the thermal management greatly increases HEL fire power by increasing dwell time on target. To assess HELLADS operational capabilities the test community has been challenged with how to effectively examine the advantages and limitations through a cost effective manner. Modeling and simulation supports this assessment as it yields itself easily to relatively low cost and robust testing methodologies. The challenge comes with building credible models through validation and verification of test parameters and scenarios. An Air Force Standard Analysis Toolkit model, the Extended Air Defense Simulation Model (EADSIM), is used in this study to meet these challenges. This research effort focuses on the assessment of the HELLADS operational capabilities through EADSIM. Of particular interest is the investigation of the envisioned HELLADS operational envelope and the potential advantages it offers over other HEL systems. Scenarios are applied to represent the Homeland Defense arena in which HELLADS is proposed to operate. Specifically this study explores what factors impact HELLADS effectiveness and suitability in the Homeland Defense scenarios examined.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Simulation of Autonomic Logistics System Sortie Generation
The current Air Force logistics operations system is reactive in nature, meaning that after the aircraft detects a part failure, the maintenance person must perform fault isolation procedures and then steps are taken to repair or replace the faulty item. This may or may not include ordering of a replacement item from base supply. The Autonomic Logistics System (ALS) concept changes this reactive process into a proactive one with the employment of technologies such as prognostics and distributed information network. This new approach to the logistics process shows the potential for cost savings, increased aircraft operational availability, and better system performance. The ALS basic function can be compared to the human body's nervous system. The body's nervous system performs activities automatically or without constant thought like respiration and blood circulation. This same concept can be applied to the Air Force logistics system. Certain logistics tasks can be handled automatically or autonomously. Ordering parts for a broken system, calling the right maintenance specialist to the right aircraft reporting a problem, notifying the maintenance control center that a certain aircraft has a malfunctioning system and will not be available for the next sortie, and other possible applications. Since the ALS can handle these routine tasks, the maintenance personnel are free to perform more important tasks such as maintaining and repairing the jets. This thesis explores the impact of this concept on the aircraft sortie generation process by building a discrete event simulation tool to allow the study of the baseline existing system and the ALS.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Engendering Cyber-mindedness in the USAF Cyber Officer Corps
The mission of the United States Air Force is to fly, fight and win...in air, space and cyberspace. The Air Force is the first military service in the Department of Defense to include the cyberspace operating domain as part of its mission. The Air Force has undergone notable changes to incorporate this new domain of operations, to include establishing a cyberspace numbered air force and creating a cyberspace career field. The Air Force converted all of its Communications and Information Officers into Cyberspace Operations Officers in April 2010. The Air Force, however, has not completed an in-depth analysis of what skills the officers in this new career field will need in order to face future cyberspace challenges. This new career field is an amalgamation of officers with different educational backgrounds and operational experiences. The essence of any organization is the culture among its members. An accepted definition of organizational culture is a shared set of beliefs among members of a group that establishes acceptable behavior by individuals within the group. When the Air Force recognized cyberspace as an independent operating domain it became important for the service to foster a cyber-minded culture. This research offers a better understanding of and recommendations for shaping a cohesive, operationally-oriented, and mature cyber-minded culture, which the Air Force desires for its new operating domain. To accomplish this goal, this research explores three context-specific cultural variables with regard to their influence on certain career fields in the Air Force's operating domains. Those variables are advocacy and mentorship, education and formal training, and divergence of career paths. Each of the variables plays a role in fostering cohesion, operational orientation, and maturity of domain-minded cultures. A study of the air- and space-minded cultures, with a careful focus on their maturation from their birth and early growth stages to organizational miThis work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
An Analysis of the Air Force Basic Communications Officer Training Course
In 1998, the Aerospace Communications and Information Expertise (ACE) program was implemented to provide a common operational foundation for new Air Force Communications and Information officers. Training's crucial role in providing Air Force effectiveness and efficiency in the officer corps is demonstrated by the formal training courses new officers are required to attend for instruction in their jobs. The importance of training, and subsequent training evaluation, is evident for two significant reasons: the skills required by Air Force Communications and Information officers and the amount of investment in training.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
A Comparison Study of F-15C Fighter Squadron Ready Aircrew Program Flying Hour Scheduling vs. the RAND Corporation's Flying Hour Scheduling Linear Program
This research compares and contrasts the Flying Hour model created by the RAND corporation with the Ready Aircrew Program (RAP) model from Air Combat Command. The RAP model was designed to generate an annual flying hour program that specifies the minimum number of sorties required to stay tactically safe. The RAND model was designed to provide fighter pilots 13 sorties per month, a number determined from surveys of combat aviation leadership. The RAND model is built on the assumption that the fighter pilots would be immediately ready to deploy to a combat situation. In contrast, squadrons using the RAP model must take extra sorties and time to get fighter pilots ready for war. This research recommends an increase to AFI 1-2F-15V1 annual pilot requirements. This plus-up will increase average monthly sorties for combat mission ready API-1 pilots to the Air Force Safety Center recommended 11 flights per month at a flying hour cost of approximately $1.7 million per squadron.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Analysis of Online-Delaunay Navigation for Time-Sensitive Targeting
Given the drawbacks of leaving time-sensitive targeting (TST) strictly to humans, there is value to the investigation of alternative approaches to TST operations that employ autonomous systems. This paper accomplishes five things. First, it proposes a short-hop abbreviated routing paradigm (SHARP) -- based on Delaunay triangulations (DT), ad-hoc communication, and autonomous control -- for recognizing and engaging TSTs that, in theory, will improve upon persistence, the volume of influence, autonomy, range, and situational awareness. Second, it analyzes the minimum timeframe need by a strike (weapons enabled) aircraft to navigate to the location of a TST under SHARP. Third, it shows the distribution of the transmission radius required to communicate between an arbitrary sender and receiver. Fourth, it analyzes the extent to which connectivity, among nodes with constant communication range, decreases as the number of nodes decreases. Fifth, it shows the how SHARP reduces the amount of energy required to communicate between two nodes. Mathematica 5.0.1.0 is used to generate data for all metrics. JMP 5.0.1.2 is used to analyze the statistical nature of Mathematica's output.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Adversary Use of Commercial Space
The ability to exploit space capabilities was once monopolized by a few select nations. However, the advent of the Information Era begat an increased demand for space services that inevitably drove a responding supply. Today, space-based force enablers are commercially available not just to nations, but individuals, alike. This ready accessibility of space capabilities places both US forces and her space industry at risk. Successfully addressing this risk will require the coordinated efforts of the Departments of Defense, State and Commerce. To best quantify the threat, one must not only determine what services are available, but who is providing them. Unsurprisingly, Russia, the member nations of the European Space Agency, Japan and China pose the greatest menace as adversary sources of space-based capabilities and competitors to US industry. Naturally, these states also host the largest commercial service providers such as SES Global, Arianespace, and Mitsubishi Heavy Industry. The sophistication and state backing of these entities merit close and continued scrutiny. Having identified the sources, one may then assess the services. Of the spectrum available, the greatest equalizer for the opposition to US forces is secure, two-way mobile communications. This is due to its inherent advantages as well as the capabilities such as networking that may be derived from it. Of lesser, but still significant benefit is satellite imagery. High resolution commercial imagery is not yet available on demand, but data as old as several years may still have utility when assessing non-mobile targets such as structures and runways. In contrast to these threats to US forces, the main danger to her industry stems from the limited accessibility of space. Launch segments endure excessive operating costs and high risks. Single failures can jeopardize corporate survival. Foreign companies have significantly lower stakes in this arena because many share the burden of launch expenses with tThis work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Counterair
This white paper examines the counterair mission in 2025--what it is, what the threats are, how we counter them. In the broadest sense, the counterair mission will not change in the next thirty years. The basic premise of air superiority--neutralizing or destroying an adversary's ability to control the skies--will remain intact. This paper examines the counterair mission by first performing an analysis of three different trajectories. The first is an evolutionary trajectory based on projections of current and programmed capability. The second and third trajectories represent extremes--"anything but" approaches for conducting the counterair mission. The second trajectory is "anything but" inhabited aircraft and the third is "anything but" aircraft at all--performing the counterair mission solely with surface and space-based systems. The results of this analysis will provide us with a basis of comparison for each. Common themes emerged from all three trajectories. The primary theme is a requirement for near-real-time collection, processing and distribution of information, or in some cases knowledge, to support the commander's assessment and reaction to a given situation. A comprehensive holographic display system is required to present the information to the commander.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
A Decision Model for Selecting Energy Efficient Technologies for Low-Sloping Roof Tops Using Value-Focused Thinking
The Air Force has a large inventory of low-sloping built up roofs (BURs) and millions of dollars are spent each year retrofitting these systems. The DOD has been directed to reduce non-renewable energy consumption by using energy-efficient technologies. These two details present a great opportunity to use the open roof space to install energy-efficient roofing technologies. The purpose of this research is to provide Air Force decision makers with a tool to assist them in deciding what roofing technologies should be installed on facilities. Value Focused-Thinking is the methodology used to construct the model, in which values were used, instead of alternatives, to create the model.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Bioactive Glass Materials for Biological Applications
This book envelopes the complexities, challenges, and advancement in developing new class of bioactive materials for versatile applications. It outlines the materials involved, bioactivity against bioinert materials, phase change materials, biomolecular nature, synthetic biodegradable polymers, and bioactive glasses.
The Audio Expert
This newly updated third edition of The Audio Expert offers a comprehensive reference book that covers all aspects of audio. The book includes both practical and theoretical explanations, using common sense plain-English explanations and mechanical analogies, with minimal math.
Determining Logistics Ground Support Manpower Requirements for a Reusable Military Launch Vehicle
Successful space-based technologies like satellite imagery and GPS have increased military demand for a rapid-response launch capability. AF Space Command's Operationally Responsive Spacelift program was developed to ensure that the AF has the capability to launch a payload into orbit within hours of a tasking notification, and requires development of a new space launch vehicle. The Reusable Military Launch Vehicle (RMLV) is currently in the design phase. The AF Research Laboratory sponsored development of the MILEPOST simulation model in order to assess the turnaround time, and thus responsiveness, of various design alternatives. The focus of this thesis is to improve the fidelity of the MILEPOST model by assessing the logistics manpower required to support the modeled turnaround activities. The research determined the appropriate AF organizational structure and manpower requirements for RMLV ground support agencies based on the activities modeled in MILEPOST. This information will be incorporated into the model in future research efforts, resulting in the capability to evaluate RMLV design alternatives based on both turnaround time and workforce requirements.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Strikestar 2025
The United States military of the year 2025 will need to deal with a widevariety of threats in diverse parts of the world. It will be faced withbudgetary restraints that will dictate system trades favoring those militaryelements that offer utility over a wide spectrum of conflict and add to theability to project power over long distances. The United States military of the year 2025 will also exist in a social and political environment that willdictate the need to minimize United States personnel losses and enemy collateral damage.An opportunity exists to exploit planned advances in intelligence, surveillance, reconnaissance, and the development of unmanned aerial vehicles (UAV) to address future military needs. Through all-source, coordinated intelligence fusion, it will be possible to supply the war fighter with all-weather, day or night, near-perfect battlespace awareness. This information will be of precision targeting quality and takes advantage of multiple sources to create a multidimensional view of potential targets. Early in the twenty-first century, reconnaissance UAVs will mature to the extent that reliable, long-endurance, high-altitude flight will be routine, and multiple, secure command and control communications links to them will have been developed.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Sentinel Chameleon
Sentinel Chameleon: A Concept of Operations for Employment of Unmanned Aerial Systems for Persistent Information Operations in 2030 The year is 2031. Coalition Forces are conducting Foreign Internal Defense and stabilization operations at the request of a terrorist-plagued nation in North-East Africa. There have been credible threats of a Weapons of Mass Destruction (WMD) attack using conventional delivery methods; most likely in the form of a dirty bomb. There is no indication that the host country has an organic WMD capability. A Sentinel Chameleon (SENCHEON) constellation has been operating over a designated area for 37 hours where the coast and the borders of a neighboring country, known to deal in WMD materials, can be closely monitored. The Master Planning Tasking Command and Control Mission Lead (MPTC2ML) is a Marine Corps Joint Forces Commander established by Africa Command (AFRICOM) and has set up headquarters in the troubled country. The MPTC2 center is located in the Coalition Air Operations Center. The Combined Forces Maritime Component Commander (CFMCC), comprised of US Navy combatants from Commander FIFTH Fleet (C5F), has been conducting Maritime Interdiction Operations (MIO) from the straight of Babel Mandeb to the Northern Kenyan coast. Although piracy interdiction has been successful, the Navy's Visit Board Search and Seizure (VBSS) of suspect vessels has not yielded indications of Chemical Biological Radiological or Nuclear (CBRN) materials. The Combined Forces Land Component Commander (CFLCC) is providing support to boarder control authorities, but for the most part this responsibility has fallen to the host nation. WMD proliferation is growing and the threat to the FID operation is imminent. So, what kind of Unmanned Aerial System is SENCHEON? How is it different from any other? What can it do to help eliminate the threat?This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Protecting Commercial Space Systems
Key questions will address the impact on U.S. national security due to attacks on commercial space assets. What is the `real' impact of commercial space on the U.S. economy (not just spending)? How would loss of commercial space capabilities impact U.S. warfighting capability? What constitutes an attack on a commercial space system? How do we deter and detect an attack? How should the U.S. respond to such attacks, proportionally or massively? Finally, what policy and process changes are needed to protect our national security?This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Characterization of Functionally Graded Materials
The purpose of this study was to characterize the behavior of a functionally graded material through experimentation and analytical modeling. Functionally graded materials are a ceramic metal composite which transitions from metal on one face to ceramic on the opposite face. Creating reliable models required verifying the material properties. This was accomplished through the use of a static modulus of elasticity test as well as a dynamic ping test. The natural frequencies from the dynamic test were compared with finite element models to determine which material properties most accurately represented the functionally graded material. It was found that the material properties established experimentally by Hill and Lin produced the best models. A fracture surface was examined to determine the failure criteria for the prediction of failure in a cyclic loading scenario. It was determined that the material would fail in a brittle manner and the maximum principle stresses should be used to predict failure.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Black Silicon
This book explores the fundamentals, process-property relationships, and manufacturing techniques of Black Silicon. It details various surface morphing methods and compares the resulting structures. The thermal, electrical, electronic, and optical properties of Black Silicon are examined, along with its major applications. Future directions in research, development, and device manufacturing are discussed. The ability to tailor semiconductor morphology for desired properties adds a new dimension to the physics, materials science, and engineering of these materials. The book also includes a comprehensive summary of intellectual property related to Black Silicon, highlighting its technological evolution and potential.Key features: - Case Studies, Examples and End-of-Chapter Summaries will be contained in each chapter. - Describes black silicon fundamentals - Offers process-property-performance correlations as well as applications - Outlines future prospects and opportunities for black silicon
Air Force Civil Engineer Mobilization in a Joint Vision 2010 World
Rapid evolution in the international political, social, and military environment, coupled with budget pressures within the federal government, have created a fluid setting for the military services. As fundamental as aircraft to the Air Force's ability to protect U.S. interests at home and abroad are the support functions that provide deployed basing for aircraft and aircrew alike. What are the factors that influence the civil engineer's ability to launch, support and sustain deployed military operations within the context of this environment and the national military strategy established to meet these challenges? Do current civil engineer capabilities fulfill Joint Vision 2010 and Air Force "Global Engagement" strategies, now and in the future, for interaction in the New World order? What steps are Air Force civil engineers taking, or should they take, to improve their ability to support deployed military operations? This study concludes that Air Force civil engineering is substantially in step with the evolving character of the current strategies that enable the U.S. military to engage across the spectrum of new and anticipated future world environments.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Piezo-Electrochemical Transducer Effect Intercalated Graphite Micro-Electromechanical Actuators
The purpose of this research is to investigate the Piezo-Electrochemical Transducer (PECT) effect in intercalated graphite as a possible mechanism of actuation for micro-electromechanical systems (MEMS). This dissertation presents the results of research into the PECT effect in H2SO4-intercalated graphitized carbon fibers, including both electrical and mechanical characteristics of this effect. PECT fibers achieve up to 1.7% strain at 1.4 V of applied potential. In contrast, the piezoelectric material polyvinylidene difluoride (PVDF) generates only 0.01% strain and polysilicon thermal expansion between 0.02 and 0.06% strain depending on the thermal conductivity of the particular polysilicon that the actuators are fabricated in.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Air Force Development Test and Evaluation Under Acquisition Reform
Acquisition Reform changed government involvement in system acquisition with transition to best commercial practices. Shortened acquisition timelines, reduced budgets and increased contractor test responsibilities intensifed several issues. These issues are test planning and execution capabilities, joint contractor and government test efficiency, and both government and industry test experience levels. Today's DTE methods are insufficient to successfully overcome increased system complexity, decreased test budgets, and reduced manpower challenges of the future. To meet these challenges, this project presents six test recommendations which enhance DTE contributions to the acquisition process. The six recommendations are: 1. Develop a single commercial industry standard governing military aviation testing. 2. Emphasize greater simulation configuration control and technological simulation advances, with software test and avionics integration simulation the highest priorities. 3. Refine the Integrated Test Team Concept to combine contractor, development, and operational test requirements in addition to innovative test program teaming. 4. Streamline development and operational test data requirements and allow contractor and development test personnel to supplement operational test teams. 5. Automate test planning and execution functions to reduce manpower investments. 6. Modify the Federal Aviation Administration Designated Engineering Representative concept to increase contractor test autonomy.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Determining the Orbit Locations of Turkish Airborne Early Warning and Control Aircraft Over the Turkish Air Space
This research provides optimal orbit locations that can be updated according to the threats, for Turkish AEW and C aircraft in the combat arena. Three combat scenarios Turkey might encounter are examined. Turkey can expect threats from everywhere. The worst cases for these scenarios include bad weather conditions and in Electronic Counter Measure (ECM) environment, adversary Surface to Air Missile (SAM) sites which are located in areas unknown to Turkish intelligence and no Suppression of Enemy Air Defense (SEAD) aircraft which can eliminate the SAM sites using High Speed Anti-Radiation Missiles (HARM). The concern is to cover and detect the threats as far as possible from Turkey without entering the lethal range of adversary SAM sites and airfields. The goal is to help decision makers decide how many AEW aircraft are needed to obtain full coverage.In order to provide optimum results, a Maximal Coverage Location Problem technique is used and the model is coded in MATLAB 2008a.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Deep Battle Exploitation in Rapid Decisive Operations
This research offers new doctrine guiding use of airborne forces. The primary method was synthesizing past and current airborne doctrine and practice with recent advances in technology and capabilities to come up with a fresh look at solving airborne problems. The traditional problems encountered by airborne forces are fratricide, assembly delays, aircraft vulnerability to AAA, SAMs, and enemy aircraft, resupply, and vulnerabilities after insertion. These include foot speed maneuver limits, little protection against heavy forces, and potential of being isolated. These problems can be overcome by following a new doctrine of Deep Battle Exploitation building on existing technology improvements like GPS, satellite communications, NVGs, improved intelligence, and data links such as Blue Force Tracker and Link 16. This doctrine integrates overarching Rapid Decisive Operations concepts applied at the operational level and is stated as using multiple (15+) simultaneous airborne force insertions forward of the main battle lines with no requirement of link up operations. These company to battalion size forces will operate like SOF, but focus overtly on JFC objectives in either a supporting or supported role. Implementing this doctrine requires no new aircraft or hardware, but needs significant changes in Army and Air Force doctrine and training in tactics, techniques, and proceduresthat can be done today! Key words: Rapid Decisive Operations (RDO), non-linear, simultaneous, non-contiguous, swarm, Strategic Brigade Airdrop (SBA), Airland Battle, Joint Targeting, airborne, airdrop, air assault, simultaneity and depth.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
A Life Cycle Assessment and Economic Analysis of Wind Turbines Using Monte Carlo Simulation
The United States depends heavily on nonrenewable fossil fuels to generate electricity. Using renewable energy sources, such as wind, could reduce air emissions and fossil fuel dependency. Previous studies have examined the life cycle costs and environmental impacts of using wind to generate electricity, but results have varied due to inconsistent modeling assumptions. This research uses Monte Carlo simulation to conduct an economic payback analysis and life cycle assessment of 11 modern, utility-scale wind turbines. Hourly meteorological data was used to evaluate 239 U.S. locations. For each location, the wind turbine with the shortest median payback period was assumed to be the economically preferred turbine model. This simulation demonstrates that variance in the model output is primarily caused by differences in location-specific climate data (wind speed, air density). Depending on the location, the median economic payback periods ranged from 2 to 132 years. 41% of the locations had median payback periods less than 10 years, and 63% less than 15 years. Considering a typical turbine lifespan of 15-30 years, wind turbines are not economically viable at all locations. At locations with favorable wind resources, wind turbines are likely to be superior to electricity production using natural gas or coal. For the preferred wind turbine, the median life cycle energy intensities at all 239 locations ranged from 0.05-0.54 (KWh energy inputs/KWh outputs), compared to 2.3 for natural gas and 2.6-3.5 for coal-fired electricity generation. The median CO2 (eq) intensity values range from 13-156 g-CO2 (eq)/kWh for the preferred wind turbine, compared to 585 g-CO2 (eq)/kWh for natural gas and 757-1042 g-CO2 (eq)/kWh for coal-fired power plants.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Optimal Adoption of Green Roofs
New growth within established communities puts undue pressure on existing infrastructure which in turn, drives tax rate increases for all residents to cover. However, there are sustainable methods that municipalities can turn to that diminishes the local impacts of new growth on the community. Based on the absorptive nature of green roofs, the delayed release of stored rainfall volume diminishes the instances of combined sewer outflows as well as reduces the need for increased infrastructure to convey and treat stormwater discharge. A municipality can introduce planned percentages of green roof coverage which will diminish infrastructure improvement costs over time and increase the population's sustainable footprint. By employing the curve number method for determining runoff volumes from specific rain events and attaching cost-per-unit increase values to the interacting variables, the runoff-cost model produces cost curves in relation to the percentages of green roof coverage. From this runoff-cost model, (based on a specific area), a calculated 40% green roof coverage can be fully reimbursed to the builders through tax abatements, eliminating the perceived cost premium of green over conventional roofs.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
The Need for a Dedicated Space Vehicle for Defensive Counterspace Operations
This paper investigates the defensive counterspace function as defined in Air Force Doctrine Document 1 and considers whether an on-orbit capability is needed for its fulfillment. The discussion begins with the examination of threats to space systems, how they are likely to be attacked and the means with which to counter those attacks. The examination focuses on the space element and determines that a space-based defensive capability will be needed to protect orbital assets in the future. The defensive potential of ground-based systems and self-defending spacecraft are determined to be inadequate, leading to the conclusion that a dedicated, mission specific vehicle design is the best option for fulfilling the defensive counterspace function. Finally, preliminary considerations of vehicle design and mission capability indicate that the first iteration of this vehicle should be ground-stationed, reusable, and prepared to launch into earth orbit in time of heightened tensions or war to carry out the defensive counterspace mission.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Models for Sortie Generation With Autonomic Logistics Capabilities
The primary objective of this research is to investigate the impact of an autonomic logistics system (ALS) on the sortie generation process for an individual airbase. As in some prior studies of this process, the methodology used to model the sortie generation process is a queueing network containing fork-join nodes for concurrent maintenance activities. The sortie generation rate is commonly regarded as the primary performance measure of the sortie generation process. This measure coincides with the throughput and is used to compare two models: i) pre-ALS operations and ii) ALS-enhanced airbase operations. Analysis of the models shows that the ALS model yields higher generation rates under a variety of scenarios resulting from the differences in the sortie generation process that are inherent when an ALS is implemented. These results demonstrate that implementation of an ALS will positively impact the sortie generation process by increased sortie generation rates with equivalent or reduced resource levels.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
An Examination of Latency and Degradation Issues in Unmanned Combat Aerial Vehicle Environments
There are two basic ways to control an Unmanned Combat Aerial Vehicle (UCAV) as it searches for targets: allow the UCAV to act autonomously or employ man-in-the-loop control. There are also two target sets of interest: fixed or mobile targets. This research focuses on UCAV-based targeting of mobile targets using man-in-the-loop control. In particular, the interest is in how levels of satellite signal latency or signal degradation affect the ability to accurately track, target, and attack mobile targets. This research establishes a weapon effectiveness model assessing targeting inaccuracies as a function of signal latency and/or signal degradation. The research involved three phases. The first phase in the research was to identify the levels of signal latency associated with satellite communications.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Use of Multivariate Techniques to Validate and Improve the Current USAF Pilot Candidate Selection Model
Training pilots for the USAF costs millions of dollars every year. There are seven points of entry into Air Force Undergraduate Pilot Training (UPT). Each source has its own selection process to screen candidates accepted into UPT. The Pilot Candidate Selection Method (PCSM) seeks to ensure the highest possible probability of success at UPT. PCSM applies regression weights to a candidate's Air Force Officer Qualification Test (AFOQT) Pilot composite score, self-reported flying hours, and five Basic Attributes Test (BAT) score composites. PCSM scores range between 1 and 99 and are loosely interpreted as a candidate's probability of passing UPT. The goal of this study is to apply multivariate data analysis techniques to validate PCSM and determine appropriate changes to the model's weights. Performance of the updated weights is compared to the current PCSM model via Receiver Operating Curves (ROC). In addition, two independent models are developed using multilayer perceptron neural networks and discriminant analysis. Both linear and logistic regression is used to investigate possible updates to PCSM's current linear regression weights. An independent test set is used to estimate the generalized performance of the regressions and independent models. Validation of the current PCSM model demonstrated in the first phase of this research is enhanced by the fact that PCSM outperforms all other models developed in the research.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Creep and Fatigue Interaction Characteristics of PWA1484
One of the main methods for predicting the service life of jet engine turbine blades is through creep analysis. A sample of the turbine blade material will be mechanically tested to characterize its creep performance. This characterization will be used to determine safe operating conditions for the material. While methods for modeling creep behavior are generally well developed, this constant load creep testing does not fully represent the loading conditions present in a jet engine due to cyclic loading caused by the mission profile and throttle movements. As the industry seeks to become more accurate in physics based modeling of materials that are used in turbine blades, incorporation of these cyclic loads into the characterization of turbine blade materials is needed. It will be important to understand what effect pre-existing creep will have on fatigue life and what effect pre-existing fatigue loading will have on creep life. This research gives microstructural observations as well as data analysis of samples of PWA1484 tested at 871-C in creep-fatigue environment. This research resulted in the conclusion that prior fatigue cycling results in a non-linear reduction in the amount of primary creep, and an earlier transition to tertiary creep in PWA1484.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Ucav
Air superiority is an essential military mission, and will continue to be so for the foreseeable future. Control of the air is not an end of its own, but rather it provides the flexibility and freedom of action central to a full range of military capabilities. In the coming century the United States will confront a number of disparate and ambiguous challenges to its hegemony. The resources available to meet those challenges will undoubtedly be constrained. Extremely long lead times in the acquisition and procurement of new technologies mean that now, as the F-22 Raptor begins to replace the venerable F-15 Eagle, the next- generation air-superiority fighter is entering development. Unmanned aircraft must be considered as an alternative to manned aircraft for this critical mission. While cost has been the driving factor for advances in UCAV, technology has been the major limitation. This thesis concludes that an air-superiority UCAV should be feasible by the year 2025 and that it should provide an effective and affordable alternative to manned air-superiority fighters.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
War Department Technical Manual
The United States Army has released several previously restricted manuals on guns, Camouflage, Tanks, Missiles, Air Navigation, Vehicles, and many other devices used in World War II. This is one of those manuals.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Automated Civil Engineer Planning and Execution System
Air Force Civil Engineers have long supported the employment of airpower during contingency operations by planning, building, and maintaining platforms to launch and recover aircraft. In the cold war era, these launch platforms were usually collocated operating bases, supported by a robust infrastructure that was well known to CE planners. Unfortunately, drastic changes in our national security environment, and reduced infrastructure overseas, have meant that today's launch platforms are often unfamiliar runways and airstrips scattered throughout the world. CE planners, still tasked to beddown a variety of operational missions, are now faced with a much more difficult challenge. Specifically, they must plan beddowns at more remote locations, with less planning time and less preplanning information. The objective of this study was to find ways to improve the Civil Engineer contingency planning process through the use of automation technology. This study recommends an automation strategy based on a thorough examination of the air base planning process, existing automation initiatives and products, and future automation technologies. To support this research, the team conducted an extensive literature review and made numerous personal contacts with government agencies and commercial enterprises specializing in automation technology. Our research revealed that despite much effort in this area over the past ten years, a single tool to automate planning, execution, sustainment, and recovery of air base operations in a contingency environment does not exist but is readily attainable. This study found there are a variety of government and commercial software products and information databases currently available which can be used to build the foundation of an automated CE beddown planning tool.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Operating at the Convergence of Sea Power and Cyber Power
There is little debate as to the importance of Cyber operations within the US Government. Securing it is another issue beyond awareness. To quote the 2003 "National Strategy to Secure Cyberspace," "Securing cyberspace is an extraordinarily difficult challenge that requires a coordinated and focused effort.." The approach presented within this document represents such an approach - for the US Navy and from within the US Navy. The traditional approach for the Navy C4I systems engineering offices (such as SPAWAR) has been to deliver technologies that will satisfy Navy and Joint warfighter requirements on an ad-hoc basis. While the products such organizations provided were developed more quickly than the typical "big Navy" ship programs, the products were often not able to keep pace with current technology available to users in the private sector, generating user frustration due to poor expectation management.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Space Based Satellite Tracking and Characterization Utilizing Non-Imaging Passive Sensors
A technique is developed to determine the orbit of a sunlight illuminated satellite passing through the field-of-view of a sensor platform in a Highly Elliptical Orbit (HEO) and Geosynchronous orbit (GEO). The technique develops two different methods of initial orbit determination. The first relies on the Gauss initial orbit determination method to develop an estimate of the state from angular data. The second method relies on positional data of the target relative to the Earth's background to determine an estimate of the state. These estimates are then refined in a non-linear least squares routine. This estimate of the state is then used to identify the target from the Air Force Space Command satellite catalog.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Executive Agent for Unmanned Aircraft Systems
The United States Air Force has requested Executive Agency over all Department of Defense (DoD) Unmanned Aircraft Systems (UAS) that fly above 3,500 feet. This paper documents how a service is designated as an Executive Agent over a certain domain. The paper highlights the roles and responsibilities of the service or organization designated as an Executive Agent. The Executive Agency roles and responsibilities of the chairman of the Joint Chiefs of Staff are also documented. The Air Force's stated reasons why the Secretary of Defense should appoint them the DoD Executive Agent for Unmanned Aircraft Systems are examined. Then the paper captures the Army's main arguments as they pertain to the Air Force being designated as the Executive Agent for unmanned aircraft systems. The author's thesis is that appointing the United States Air Force as the Executive Agency for unmanned aircraft systems will have adverse operational impacts for the United States Army and our combatant, operational, and tactical commanders. The document is completed by providing the reader with a recommendation and conclusion section.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
