Recent Developments in Automatic Control and Systems Engineering
The industry's pursuit of digitalization, with a focus on automating solutions, is presently being complemented by efforts to develop autonomous systems, where artificial intelligence (AI), advanced control, modeling, and optimization play a significant role. In this context, this Special Issue presents some recent developments in automatic control and systems engineering, including practical and experimental applications in various areas, ranging from autonomous vehicles to industrial processes. A core aim of this Issue is to capture many of the important themes being pursued by researchers in this area, which in turn will allow other researchers to plan further research into these areas.
Reclaiming the Internet
How the Internet lost its way--and how to fix it Recovering the Internet is an indictment of how Big Tech cloaks ruthless commercial exploitation in the language of free speech. Olivier Sylvain, a leading legal scholar and former senior advisor at the Federal Trade Commission, exposes the incentives behind social media design, revealing how they trap users in cycles of addiction, misinformation, and harm--from fatal TikTok challenges to AI chatbot codependency. With clarity and urgency, Sylvain dismantles the libertarian mythology that shaped internet law and calls for a new legal regime that protects users over platforms. Recovering the Internet is a powerful, original intervention into the most urgent policy debate of our time--what it will take to reclaim the digital public sphere.
Advances in Grid-tied PV Inverters
The renewable energy industry has grown dramatically in recent years as a result of global green missions. PV energy is considered the most cost-effective and reliable renewable energy source. Power electronics, an important interface between PV renewables and the grid, has advanced rapidly in recent years. As the percentage of PV renewables integration increases, new challenges emerge, such as high-quality grid current controlling, potential induced degradation suppression, DC-bus voltage balancing, and so on. These new issues create new challenges for PV power electronic inverter. As a result, in-depth discussions on these issues are required in order to provide technical support for the global energy transition. It is simple to implement conventional current control with a PI controller. However, system stability and dynamic performance are not perfect, particularly when operating under unfavorable conditions. In Chapter 2, an improved control method is proposed by introducing a compensation unit. The compensation unit can effectively compensate the system's phase around the crossover frequency, greatly enhancing the system's phase margin and stability. It is also capable of handling weak-grid conditions. Researchers have discovered that there are various degradation mechanisms affecting PV module. One of the degradation mechanisms is the PID, which is regarded as one of the leading causes of PV module degradation. In Chapter 3, a PID suppression method is proposed, in which a PID suppression unit is added between DC negative bus and ground. The idea is to regulate the output voltage of the added power supply, and then correspondingly raise the voltage of the PV module to the ground to suppress the PID effect. Chapter 4 investigates the dc-bus voltage balancing for 3-level DC/DC converters. Based on duty cycle and operating modes, four different cases are illustrated, and the output voltages under four cases are detailed. The dc-bus voltage balancing situation becomes worse when the system is in the condition of D>0.5 and DCM. Therefore, three methods are proposed to solve the issue raised.
Design and Development of Metal Matrix Composites
This Special Issue presents recent advancements in the design, fabrication, and characterization of metal matrix composites (MMCs), highlighting their growing importance in high-performance structural and functional applications. It includes original research focused on innovative processing techniques such as powder metallurgy, additive manufacturing, and casting, as well as investigations into microstructural behavior, mechanical properties, and tribological performance. The contributions offer valuable insights into how MMCs can be tailored for demanding environments in sectors such as aerospace, automotive, and energy. By addressing both theoretical developments and practical implementations, this Special Issue provides a comprehensive overview of current trends and future directions in the field of MMCs.
Tribology of Textured Surfaces
This reprint highlights the latest advances in tribology focused on textured surfaces, showcasing 14 peer-reviewed contributions that explore innovative strategies to reduce friction, enhance lubrication, and improve wear resistance. The volume spans a broad spectrum of texture scales, from micro-dimples as small as 5 μm to millimeter-sized grooves, and covers diverse fabrication methods including laser surface texturing, controlled grinding, and hybrid coatings. The studies demonstrate how precise surface engineering can dramatically enhance the performance of mechanical components such as bearings, seals, piston-cylinder systems, and biomedical implants.A significant portion of the contributions emphasize computational modeling and simulations, including non-linear optimization, computational fluid dynamics, and finite element methods, which complement experimental validation and provide predictive insights into tribological performance. By integrating theory, experiments, and practical applications, this reprint serves as a comprehensive resource for researchers and engineers seeking to design advanced textured surfaces.Together, these contributions underscore the transformative potential of surface texturing in extending component life, improving energy efficiency, and enabling next-generation engineering solutions across industrial and biomedical applications.
Non-Destructive Testing of Materials and Parts
Non-destructive testing (NDT) is the application of scientific principles of physics, chemistry, and mathematics for the development of adequate procedures and specific equipment that can be used to study a part, object, or complex structure, like a car, airplane, or railway bridge, without causing any harm to the object under examination. NDT is also used in many other industries, and in other non-industrial applications; for example, NDT is used to make sure that parts do not have defects that would make the customer unhappy or that passengers and luggage in an airport comply with the strict safety regulations. Some of the equipment and procedures used in NDT can also be found in the medical field, like with the use of X-rays in dental work or ultrasound in echography. Presently, there is no doubt about the importance of NDT, as it leads to a considerable amount of savings by not destroying parts, some of which are expensive, as it replaces the still too present destructive testing technique. Nowadays, there are many NDT techniques available. The field of quality control works to perfect these technologies year after year, allowing us to effectively replace destructive testing. So, we invite the reader to get acquainted with the themes within this Reprint, as they comprise an interesting set of contributions for the current state on recent NDT techniques and applications with some new insights on the use of methods like acoustic emission, ultrasound, electromagnetic waves, thermal imaging, nanoindentation, thermography, or enhanced radiography.
Advanced New Physical Layer Technologies for Next-Generation Wireless Communications
The objective of this Special Issue is to present groundbreaking research on the latest developments in physical-layer technologies that will form the foundation of next-generation 6G wireless communications. We have gathered original research articles that explore innovative solutions to meet the demanding requirements of global convergence, enhanced spectral/energy efficiency, extreme reliability, ultra-low latency, and intelligent security for next-generation wireless communication networks. Building upon established principles of wireless communication theory, this Special Issue pushes the boundaries of current knowledge to address the limitations of 5G technologies. While conventional approaches-such as OFDM and classical information theory-have proven inadequate, revolutionary techniques including new waveforms, advanced multiple-access approaches, novel channel-coding methods, and multi-antenna technologies are now emerging. These innovations are enabling the paradigm shift from conventional terrestrial-only networks to integrated space-air-ground networks. This Special Issue highlights transformative work in key areas: classical and multiuser information theory, electromagnetic information theory, semantic-aware transceiver designs, reconfigurable intelligent surfaces, native-AI-empowered architectures, and integrated sensing and communication systems.
Fractal and Fractional in Geotechnical Engineering
Fractal theory provides a robust framework for microscale quantification of geological materials, establishing critical bridges between their microstructural characteristics and macroscopic mechanical behavior. This paradigm-shifting approach offers innovative solutions to longstanding challenges in geotechnical engineering. The fractal dimension has demonstrated exceptional versatility across multiple domains, enabling precise characterization of soil porosity, permeability evolution, strength parameters, pore-size distributions, and particle morphology, while also facilitating accurate predictions of soil-water characteristic curves. Concurrently, fractional calculus has emerged as a transformative tool in constitutive modeling, particularly in addressing complex phenomena such as time-dependent soil creep deformations, tunnel lining viscoelasticity, and structural integrity assessment of shield tunnel segments. These advancements are further amplified through integration with artificial intelligence frameworks, underscoring the indispensable role of fractional-order mechanics in modern geotechnical design. This Reprint seeks to showcase cutting-edge developments at the intersection of fractal geometry and fractional theory within geotechnical engineering.
Challenges and Perspectives of Social Networks within Social Computing
This Special Issue on "Challenges and Perspectives of Social Networks within Social Computing" aims to engage readers with original research, advancements, developments, and experiments from various fields. It addresses methods, tools, and applications for sentiment analysis in social networks, exploring the vast amounts of text data from social media for evidence-based policy-making. This collection discusses the use of web data, compiling information from social networks for smart tourism consultancy. It examines Social Intelligence Mining to enhance the understanding of social phenomena, influence strategies, foster innovation, and create value across diverse sectors. The impact of digital transformation on society is analyzed through studies of social media data, focusing on the societal and economic effects of advancements in digital technology. This Special Issue assesses the scope of a user's sentiment and investigates how social media usage affects faculty job performance. An end-to-end learning model is introduced to select the most influential nodes within a social network. This publication features an effective multimodal emotion recognition system designed to improve recognition from audio and text modalities. It also includes a multilingual review of cyber-hate sentiment analysis and presents a multi-domain fake news detection framework, addressing the challenge of class imbalances.
Recent Progress in Biomass Pyrolysis and High Value Utilization of Pyrolytic Carbon
Biomass is one of the most readily available sources of sustainable energy and its processed products can be used not only as a source of energy but also as a source of technologically important carbon materials. This Special Issue presents the latest research on biomass pyrolysis and the utilisation of biochar. In this SI, scientists have undertaken, among other things, an analysis of the influence of biocomponent additives on the coking properties of coal mixtures, developing mathematical models to predict changes in these parameters. Recent research on biomass pyrolysis is providing new technological solutions, such as the development of a new two-chamber reactor to produce biochar from rice husks, adapted to the needs of small farms, which highlights the importance of local solutions. Biochar is a valuable raw material whose importance is growing, for example, in metallurgy and steelmaking, where mixtures of biochar and coke have been shown to improve the properties of slagging and process stability. The use of mathematical methods in optimising the gasification of sewage sludge has enabled high energy efficiency and CO₂ emission reductions to be achieved, demonstrating that thermal biomass conversion methods still have potential for decarbonisation. The research described in this Special Issue also covers the application of food waste, the co-pyrolysis of lignin and plastic waste, and torrefied wood to obtain high-energy products, and a significant reduction in CO₂ emissions in the metallurgical industry. This research highlights the potential of biomass pyrolysis as a tool for energy transition and the circular economy.
Vibration Prediction and Noise Assessment of Building Structures
This Reprint presents cutting-edge research addressing the critical challenge of vibration and noise disturbances within modern building environments. Urban structures are increasingly subjected to disruptive forces from sources such as traffic, construction activities, and mechanical systems. These vibrations and the resulting structural-borne noise significantly impact occupant comfort, building functionality, and the precise operations of sensitive facilities such as research laboratories, medical centers, and high-tech manufacturing facilities.Focusing on prediction and assessment methodologies, this collection delves into the complex nature of vibration and noise sources, their propagation through structures and soil, and the development of effective mitigation strategies across diverse frequency ranges. The key challenges tackled by this Reprint's contributions include the inherent randomness of excitation sources and the need for cost-efficient control solutions. The volume features advanced analytical and numerical modeling techniques, novel computational approaches, and probabilistic frameworks that make a crucial contribution to advancing prediction accuracy and control measures.Highlighting technological advances in testing and long-term performance evaluation, this Reprint compiles significant contributions on vibration comfort criteria, noise disturbance assessment, and the application of state-of-the-art research.
Multi-Sensor Systems and Data Fusion in Remote Sensing II
Remote sensing is developing rapidly due to progress in many interconnected fields. It encompasses the emergence of novel sensors, the evolution of sophisticated sensor platforms, and advances in signal and data processing. Progress in radar, optoelectronic, acoustic, and other sensor technologies is especially striking. Although these sensors now offer greater sensitivity, accuracy, resolution, data rates and dynamic ranges, they still exhibit inherent limitations. The integration of multi-sensor systems and the joint processing of their signals have long been recognized as an effective means of mitigating individual drawbacks while leveraging complementary strengths. The advent of new sensor types provides scientists and engineers with opportunities to create more capable, integrated multi-sensor architectures. At the same time, user expectations regarding coverage area or volume, resolution, accuracy, processing speed and overall system functionality continue to rise. Extended frequency bands, enhanced resolution and data rates, and the widespread deployment of distributed sensors have dramatically increased data volumes in modern multi-sensor networks. These developments pose fresh challenges for data-fusion algorithms, which must now incorporate the latest advances in big-data analytics, statistical estimation and artificial intelligence. This Special Issue presents a collection of papers offering fresh insights into these emerging trends in multi-sensor systems and data fusion, and will be of interest to the entire remote-sensing community.
Energy Efficiency and Carbon Neutrality in Buildings
Climate change is the greatest environmental challenge of our time. A major source of this challenge is the buildings and construction sector, which represents an estimated 37% of global operational energy use and process-related carbon emissions, making it the biggest global climate offender. To address the critical global climate change challenge, we need to improve and transform the energy and carbon performance of the buildings and construction sector to secure a future that is energy efficient, resilient, and has net-zero carbon emissions. Energy Efficiency and Carbon Neutrality in Buildings features 13 papers that collectively explore innovative solutions to promoting energy efficiency and carbon neutrality in the buildings and construction sector, with the aim of addressing climate change and improving peoples' health, well-being, and quality of life. Topics include low-carbon policies, demand-side energy management, building energy modeling, sustainable concrete solutions, and the use of innovative technologies such as artificial intelligence and solar-tracking movable louvers to manage and reduce energy use and carbon emissions in buildings. The included studies also address key competencies and project management strategies required by professionals to support the attainment of energy efficiency and carbon neutrality goals in the buildings and construction sector. In addition, they offer valuable insights into how these goals can be achieved across various building types, from residential to public buildings.
Advanced Research on Heat Exchangers Networks and Heat Recovery
This Reprint showcases the latest breakthroughs in the design and optimization of heat exchanger networks and thermal energy systems. It emphasizes innovative strategies aimed at enhancing energy efficiency in industrial processes through modern modeling techniques, thermodynamic evaluations, and retrofitting methods. The contributions include advancements in digital tools for process integration, analyses related to exergy-pinch, and strategies for recovering heat from electrified and decarbonized systems. Several case studies illustrate real-world applications, such as the incorporation of heat pumps, effective waste-heat utilization, and hybrid systems that support the transition to sustainable energy. It provides essential insights for engineers, researchers, and decision-makers focused on minimizing carbon emissions and operational costs while promoting sustainability in thermal energy systems.
Discovering Pompeii
The conference focused on the results of the first year of the Project of Relevant National Interest (PRIN), funded in Italy by the Ministry of University and Research (MUR). SCORPi簷-NIDI, its short name, investigates and analyzes the ballistic impacts found on the extrados of Pompeii's perimeter walls. The city's exceptional history ensures that the damage was inflicted by Roman artillery.Digital documentation of the cavities provided virtual casts used for reverse-engineering analyses. The results enabled the reconstruction of terminal ballistic parameters from the geometric configuration of the cavities. Experimental activities converged on the same objective. The calculated, objectively verifiable parameters will be used to reconstruct accurate replicas of scorpions and ballistae for display both online and offline in support of dedicated platforms.
New Methods and Applications for UAVs
The aim of this Special Issue Reprint is to present the current state of knowledge regarding Unmanned Aerial Vehicles (UAVs) in the field of sensors.With the rapid development of new applications and simulation methods, UAVs can now operate in a wide range of environmental conditions, and are used in an extensive range of human activities due to their flexibility, autonomous control capabilities, size, low cost and high adaptability.The aim of this collection is to bring together the work of leading researchers in the field of UAVs with an interest in their control, design, navigation and autonomy. The papers included in this Reprint present key challenges affecting UAVs. The authors propose new solutions, approaches and methodologies to address current challenges in the use of UAVs as sensors.
Multi-Sensor Technology for Target Tracking, Positioning and Navigation
Multi-sensor technology aims to combine information from multiple sensors to improve system accuracy, leading to more specific inferences than those achieved with the use of a single sensor. It has become an indispensable tool for information processing in numerous fields, such as target tracking, positioning, navigation, control, attitude estimation, wireless networks, and so on. Thus, with the development of information sciences and sensor technology, the multi-sensor strategy has received increasing attention for practical application in recent years. This reprint collates about 20 articles representing original studies and reviews on recent advances, solutions, applications, and new challenges for multi-sensor technology in the fields of target tracking, positioning, and navigation.
The Peck, Stow & Wilcox Company's Tinsmiths' Tools and Machines
Peck, Stow & Wilcox was probably the foremost manufacturer of tinsmith s tools and machines in the world. This reprint of its 1900 centennial catalog was designed to reflect this. Every imaginable piece of equipment from formers and stakes to double seamers, folding and wiring machines are listed, described and illustrated.
Fiber-Reinforced Polymer Composites for Building and Bridge Applications
Fiber-reinforced polymer (FRP) material, known for its high strength, light weight, and excellent durability under harsh conditions or in coastal environments, has been widely used as a popular material in the strengthening, repairing, and retrofitting of existing structures. Additionally, the combination of FRP and traditional construction materials has been increasingly employed in the construction of buildings and bridges. Recently, new fibers (such as flax) and new matrixes (such as geo-polymer matrixes) have shown great potential in lieu of traditional FRP composites in many engineering scenarios. For the safe and effective application of FRP composites in civil engineering, plausible approaches to aid in estimating the performances of such structures need to be developed. The three Guest Editors organized this Special Issue (SI) that aimed to present recent advances and emerging cross-disciplinary approaches in FRP composites by collecting predominantly integrated studies pertaining to the performance of FRP composite structures. Studies from experimental testing, analytical approaches, numerical simulation, and emerging algorithms on the performance of strengthening existing structures and new-built structures were published. Nine published articles covered the following directions: FRP-strengthened concrete structures, thin-walled FRP composites for building and bridge applications, and the structural behaviors of FRP under actions of fire or environmental factors.
Forecasting and Risk Management Techniques for Electricity Markets II
As renewable energy integration continues to expand, electricity market participants face growing uncertainty in both prices and volumes. These evolving conditions underscore the urgent need for advanced tools and strategies to support effective decision-making and ensure system reliability. Recognizing these challenges, the current Reprint presents a collection of innovative research on forecasting and risk management in electricity markets undergoing rapid transformation.The featured papers explore a range of approaches, including load forecasting under uncertainty, agent-based simulations for peer-to-peer trading, blockchain-based electricity market mechanisms, and the development of energy and weather derivatives to hedge market risks. Together, these contributions span both centralized and decentralized systems and offer practical insights for energy producers, grid operators, and financial engineers. Several studies also align risk-management strategies with broader policy goals such as carbon neutrality and sustainable electricity market design.In summary, this Reprint serves as a timely reference for researchers and practitioners seeking interdisciplinary methods to enhance forecasting accuracy and market resilience. The collection reflects the evolving nature of electricity markets and brings together perspectives from energy economics, finance, control theory, and data science to address pressing challenges and emerging opportunities worldwide.
Electric Vehicles for Smart Cities
The concept of a smart city involves using modern information and communication technologies to improve quality of life and ensure the efficient functioning of urban systems. Its implementation covers traffic organization, urban infrastructure, energy, the environment and public health. A key element is promoting environmentally friendly transport, with the global shift from conventionally powered vehicles to electric mobility becoming an irreversible trend. This transformation requires appropriate infrastructure, effective operational strategies and the integration of diverse electric transport modes, including cars, buses, trolleybuses, trams, railways, e-scooters and e-bikes, into a coherent system.This Reprint presents recent research and practical insights into the role of electric vehicles in building smart, sustainable and energy-efficient urban transport systems. It addresses technological, organizational and policy aspects, exploring topics such as innovative charging tariff systems, vehicle-to-grid solutions, the optimization of cold-chain deliveries and GIS-based planning of charging infrastructure. It also examines traffic safety, risk management, fleet conversion strategies and the development of green mobility scenarios. By combining case studies, methodological frameworks and decision-support tools, this Reprint provides a comprehensive view of how electric mobility can be effectively implemented and managed in smart cities, supporting decarbonization, resilience and the enhanced quality of urban life.
Algorithms for PID Controller 2019
The reprint focuses on advanced PID controller-tuning algorithms in addition to conventional approaches based on mathematical controlled system analysis. Stavrov and al. proposed an improved version of a conventional PID controller based on a quadratic error model. De Moura Oliveira et al. proposed a PSO technique for PID controller design. Alimohammadi et al. introduced a multi-loop Model Reference Adaptive Control, leveraging a NARX model as the reference model, which was integrated with a Fractional Order PID. Alekseeva proposed a PD Steering Controller utilizing the predicted position on tracks for autonomous vehicles driven on slippery roads. A Neural PID controller for Unmanned Aerial Vehicles was presented by Avila et al., based on a Multilayer Perceptron trained with an Extended Kalman Filter. A study of six types of multi-loop model reference (ML-MR) control structures and design schemes for PID control loops is presented by Alagoz and al. Smeresky, Rizzo and Sands explore and analyze deterministic artificial intelligence composed of self-awareness statements along with a novel, optimal learning algorithm. Radac and Lala suggest a solution for the Output Reference Model tracking control problem, based on approximate dynamic programming and the Value Iteration (VI) algorithm for controller learning. A Kalman-Filter-Based tension control system for industrial Roll-to-Roll system is also presented by Hwang et al.
Advances in Testing and Computation Methods for Disaster Mitigation of Engineering Structures
The safety of engineering structures against natural hazards (e.g., earthquakes, winds, fires, and tsunamis) is a subject of great interest to researchers and is important for protecting human life and reducing economic losses. In the last few decades, with advancing knowledge and technological development in relation to understanding and interpreting the mechanisms of natural hazards, new components, connections, devices, and structural systems have been proposed for mitigating the damage caused to engineering structures. New testing and computational methods are being developed to analyze and design this damage.This Special Issue is dedicated to current research on experimental, theoretical, computational, and relevant studies on advanced methods in the disaster mitigation of engineering structures, including the following: analyzing and simulating natural hazards; damage assessment of engineering structures under natural hazards; modeling and applications of new construction materials for structural engineering; design methodologies of newly developed structural components and systems; advanced testing and modeling technologies; maintenance, repair, and retrofit of existing structures; vulnerability, risk, and reliability assessment of engineering structures under earthquakes, winds, fires, and tsunamis; and advanced methods for the evaluation and design of the resistance and resilience of structural systems.
Application of Artificial Intelligence in Industrial Process Modelling and Optimization
This Special Issue aims to enable readers to understand the latest technologies in artificial intelligence in industrial process modelling and optimization. The integration of artificial intelligence (AI) into industrial process modelling and optimization has emerged as a transformative force. This Special Issue aims to explore the application of AI approaches in industrial process modelling and optimization. This Special Issue collects research on AI and extraction of bioactive compounds, AI-driven maintenance optimization for natural gas-liquid pumps, sensor data imputation for industry reactor, domain-specific manufacturing analytics framework, machine learning predictions for various fibres, predicting and understanding emergency of pipeline incidents, energy-aware industrial internet of things, decision support system, biosensors for detecting food contaminants, intelligent modelling for sintering process, and intelligent monitoring for geological drilling processes. By sharing their practice and insights into the development and application of new AI technologies, the authors of the articles in this reprint have demonstrated the application value of artificial intelligence in industrial process modelling and optimization, thus providing readers with valuable ideological inspiration in this area.
Transient Flows
Transient flows represent a field of research that has greatly advanced in the last few decades; however, there are still many aspects of this topic that require further research. Transient flows result from sudden changes in flow conditions in pipeline systems because of planned or accidental maneuvers. Failures related to the effects of these flows can lead to major accidents and significant damage to pipeline systems. At present, transient flow analysis is a fundamental part of the design of fluid systems.Transient flow analysis is a complex research topic. In recent years, considerable progress has been made due to developments in computer science, numerical models, and novel analysis techniques. This Special Issue focuses on all of the advancements which have been made in relation to the following aspects of this field: transient flows, mathematical simulations, new analysis techniques, computational fluid dynamics (CFD), laboratory tests, protection elements and systems against water hammer, innovative strategies for controlling water hammer, hydraulic transients with entrapped air, hydraulic transients with water column separation, the consequences and risks of hydraulic transients, etc.
Techniques of Control for Energy Optimization in Actuators, Motors and Power Generation Systems
The efficient and intelligent management of energy resources is widely recognized as a key strategy for promoting environmental sustainability, equitable resource distribution, and enhanced resource reutilization. In modern energy systems, control and optimization techniques, and advanced algorithms in particular, play a pivotal role. Energy optimization is a critical concern across a broad spectrum of applications, including smart grids and microgrids, renewable energy systems, electric and hybrid vehicles, conventional engines, energy storage solutions, electric motors, and various types of traditional and non-traditional actuators.From large-scale infrastructure to small-scale components, all systems contribute significantly to the overall energy landscape. Even small actuators and motors, whether electric, hydraulic, or pneumatic, are integral to the vision of intelligent energy management due to their widespread use in energy-to-motion conversion processes.This Reprint aims to highlight recent advances in intelligent control strategies and optimization techniques focused on the efficient management of energy. The contributions within address systems in which algorithms and control methodologies play crucial roles in improving energy performance and optimization.
Signal Processing and Artificial Intelligence Technology for High-End Equipment Fault Diagnosis
This Reprint presents the latest research progress of signal processing and artificial intelligence technologies for fault diagnosis of high-end mechanical equipment. It contains 13 original research papers, covering advanced dynamics modeling and mechanism analysis methods, novel signal processing and artificial intelligence methods for machine fault diagnosis using various sensing technologies, and their multi-field applications. These papers mainly report research outcomes in mechanical engineering and its interdisciplinary fields, covering different themes including fault mechanism analysis; structural health monitoring; fault diagnosis and remaining useful life prediction of rotating machinery; high-end mechanical equipment in different industrial fields including the railway, wind energy, machinery manufacturing, and aerospace industries; and different sensing technologies including vibration, temperature, thermal imaging, electrical signals, and force or torque. The Reprint highlights how different sensing technologies could be integrated with advanced signal processing and artificial intelligence technologies for fault diagnosis of industrial mechanical systems. The research results of these interdisciplinary applications will contribute to better understanding of the mechanisms of machine fault diagnosis and remaining useful life prediction, and the application of these advanced monitoring and diagnostic technologies will improve the safety and reliability of mechanical systems in various industrial fields.
Geomechanics and Geotechnical Engineering Problems in the Design and Construction of Underground Buildings
This Reprint aims to showcase the recent advances in research related to geomechanics and geotechnical engineering problems in the design and construction of underground buildings and present some scientific issues and solutions encountered in tunnel engineering, foundation pit engineering, subway construction and other projects. As the geotechnical problems of underground engineering remain persistent throughout the entire process and are relevant to environmental protection, it is essential to consider the mechanical characteristics of geotechnical engineering and its interaction with structure when solving related engineering problems such as underground building structures. The contributions of this collection explore issues in geotechnical engineering related to different types of building structures. The topics include the seismic response of induced joints in subway stations; the shock absorption and energy dissipation effects of improved foundations, the stability, support effects, and seismic response laws of tunnels in different rock and soil masses; the stability and support methods of deep foundation pits in different environments; and the mechanical characteristics of different types of rock and soil foundations, etc. This Reprint provides valuable resources for researchers and practitioners for the design and construction of underground building structures.
Radiation Effects of Advanced Electronic Devices and Circuits
Responding to the critical demands for radiation-hardened space electronics, this Reprint synthesizes cutting-edge advances in radiation effects research across advanced semiconductor technologies. It addresses dual industry challenges posed by escalating radiation susceptibility from device scaling and the urgent need for new evaluation paradigms in radiation hardness assurance for complex electronic systems. The Reprint features pioneering research on CNN accelerators for aerospace computing, gallium nitride (GaN) High Electron Mobility Transistors (HEMTs), high-barrier beta-gallium oxide (β-Ga₂O₃) Schottky Barrier Diodes (SBDs), silicon MOSFETs, and indium phosphide Heterojunction Bipolar Transistors (InP HBTs), collectively advancing radiation hardening methodologies and reliability assessment. By presenting novel hardening strategies with breakthrough radiation mitigation solutions, it delivers essential insights for navigating evolving challenges while positioning itself as a vital resource for advancing radiation tolerance electronics innovation.
Intelligent Sensors for Structural Health Monitoring and Mechanical Fault Diagnosis
The aim of this Reprint is to educate the readers on the advanced fault or defect detection and diagnosis methods of machines and structures, even including a few advanced sensing techniques. We aim to uncover cutting-edge methodologies for mechanical and structural fault detection and diagnosis, with a focus on bearing diagnosis and signal processing innovation. Key advances include adaptive signal denoising and enhancement through utilizing noise, precision sensing hardware, AI-based diagnostics and data analysis. This Reprint would provide abundant and systemic content, from precise measurement, to signal processing-based signature extraction, to AI-empowered diagnosis frameworks.
Applications of Antenna Technology in Sensors
Antenna-based sensors have gained significant attention in recent years, particularly within wireless sensor networks (WSNs), due to their strong potential for current and near-future applications. These systems offer broad utility across a wide range of fields, including military operations, emergency response, healthcare, environmental monitoring, and entertainment. Depending on the application, operating frequencies can span from UHF to millimeter-wave bands.To support the vision of the Internet of Things (IoT), new generations of sensors must become more immersive and seamlessly integrated into everyday environments and infrastructure. This requires innovative design methodologies and the exploration of novel materials to enable embedded sensors that are capable of communication while maintaining low power consumption.Recent research in this area focuses on improving both the design and performance analysis of antenna-based sensors. Key challenges include miniaturization, material integration, energy efficiency, and reliability across various use cases. Advancements in this field are essential to meeting future connectivity and sensing needs, driving forward the development of smart, networked systems.
Plant Management and Soil Improvement in Specialty Crop Production
This Special Issue focuses on the importance of effective plant management and soil improvement practices in the production of specialty crops. Specialty crops are high-value crops that require optimal growing conditions to ensure healthy growth and high yields, such as fruits, vegetables, and herbs. The Special Issue aims to provide a comprehensive overview of the latest research and best practices in plant management and soil improvement, including topics such as soil health, nutrient management, water management, pest and disease control, and sustainable production methods.This Special Issue is intended for researchers, growers, and other stakeholders involved in the production of specialty crops, and aims to provide valuable insights into how to maximize yields and profits while minimizing environmental impact.
The Paradox of Progress
With opportunity comes uncertainty.An industrial revolution has begun: artificial intelligence is creating a cultural upheaval.But is this progress or peril? Is the potential really worth the risk?In The Paradox of Progress, Dr. Michael M. Karch delves into the ethical complexities of AI's rapid evolution. Drawing from a career spanning three decades in robotics, orthopedic surgery, and international disaster response, Dr. Karch investigates AI's far-reaching impact and initiates critical discussion about its duality. This is a compelling exploration through historical precedents of progress and AI's challenges today, including fears of data bias, deep fakes, technological hegemony, and job displacement. The Paradox of Progress is a thought-provoking analysis and must-read perspective for discovering how to harness the power of AI, reflect on collective responsibility, and safeguard the future for ourselves and the next generation.
Advances in Steel-Concrete Composite Structures
The aim of this Reprint is to introduce readers to the latest developments in steel-concrete composite structures, which comprehensively covers high-performance bridges and structures, industrial construction methods, and advanced computation methods. This Reprint explores a series of critical topics, including the shear behavior of bellow-sleeved studs, the temperature fields of cable-stayed bridge pylons, the assessment of concrete bridge blister disease, and low-carbon assembled construction, which reflect the field's focus on both structural performance and environmental sustainability. Moreover, studies on steel-plate concrete containment structures, preload effects on box columns, and thermal gradient analyses in the Tibet Region based on meteorological data further expand the research scope, showcasing the adaptability and regional applicability of composite structures. Collectively, these works make significant contributions to advancing sustainable development by skillfully integrating numerical models, experimental validation, and innovative methods. Such integration not only enhances the durability and seismic resilience of modern composite structures, but also improves their eco-efficiency in design and construction, pointing out a promising direction for the future development of this discipline.
The Paradox of Progress
With opportunity comes uncertainty.An industrial revolution has begun: artificial intelligence is creating a cultural upheaval.But is this progress or peril? Is the potential really worth the risk?In The Paradox of Progress, Dr. Michael M. Karch delves into the ethical complexities of AI's rapid evolution. Drawing from a career spanning three decades in robotics, orthopedic surgery, and international disaster response, Dr. Karch investigates AI's far-reaching impact and initiates critical discussion about its duality. This is a compelling exploration through historical precedents of progress and AI's challenges today, including fears of data bias, deep fakes, technological hegemony, and job displacement. The Paradox of Progress is a thought-provoking analysis and must-read perspective for discovering how to harness the power of AI, reflect on collective responsibility, and safeguard the future for ourselves and the next generation.
Apex Anchor
Space Elevators position humanity to address Earth's challenges from a new vantage point. We are on the brink of transforming our relationship with space, offering an eco-friendly, cost-effective, and efficient logistics method to transport large cargoes into space. This space port will provide unparalleled opportunities in space exploration, resource utilization, and satellite assembly. Starting in the late 2030s, Space Elevator infrastructures will deliver satellites and other payloads to GEO, the Moon and Mars at the rate of 30,000 tonnes, every year. Once the Modern-Day Space Elevator development program emerged in 2020, the concept of an active transportation node at the Apex Anchor became obvious. The enhancement of the roles at an Apex Anchor showed how it will become a Full-Service Transportation Node focused around the "Logistics Center at the top of the Gravity Well." The inherent rapid release velocity (7.76 km/sec) at an Apex Anchor - and the ability to release every day of the year towards any destination, such as the Moon, Mars and even Pluto - opens up the universe to humanity. These capabilities at the Full-Service Transportation Node led to the enabling of future missions. Study Concept: This ISEC research report developed the concept of assembly, refuel, repair or full construction of large space systems above the gravity well. This concept is unique as each of the segments arrives at the Apex Anchor with tremendous energy gained by rising from the ocean surface. In essence, each segment is similar to a fully fueled segment of a truck convoy resulting in a Full-Service Transportation Node. The concept - let's build huge space systems that already have monumental energy stored by being out of the gravity well and having huge velocities upon release. The study continued to develop the concept and came up with a remarkable number of missions that would be revolutionary in concept, but evolutionary in off planet.
Security and Privacy for Modern Wireless Communication Systems
This Special Issue, titled "Security and Privacy for Modern Wireless Communication Systems, 2nd Edition", aims to address urgent challenges by highlighting the latest innovations in protocols, architectures, and software and hardware solutions designed to enhance the security and privacy of contemporary wireless networks. Unlike traditional systems, modern wireless environments must accommodate a diverse array of resource-constrained devices, ultra-low-latency applications, and emerging vulnerabilities introduced by technologies such as intelligent reflective surfaces, blockchain, edge/fog/cloud computing, and artificial intelligence (AI). As wireless technologies advance toward 6G and beyond, and as the integration of AI, IoT, and edge computing deepens, ensuring secure and trustworthy communication infrastructures remains a critical priority. Through this collection, we not only hope to platform current research but also inspire further innovation in this vital field.
Projects Impacting Organizational Culture
Projects for continuous improvement are prevalent in today's business landscape, with transformations becoming increasingly common. However, individual and organizational resistance often hinders progress and inhibits results. That's where Projects Impacting Organizational Culture: Evolution by Integrating People into the Equation comes in. This essential guide offers a friendly and straightforward process to help prevent and manage change effectively.Whether you are re-adapting your organization's culture, using Blue Ocean strategy, or improving processes using methodologies like PDCA (Plan-Do-Check-Act) or DMAIC (Define, Measure, Analyze, Improve, and Control), this book provides a conceptually deep and practical process for application. It offers a unique perspective on the value of integrating Social and Technical disciplines based on core Quality Principles. This book presents a step-by-step process for conducting organizational diagnosis and interventions, combining theoretical knowledge with practical experience. Each step is accompanied by change management practices and tips, supported by relevant theory to ensure a solid understanding of the concepts discussed. Real case studies and examples are used to illustrate key points, integrating both social and technical approaches to change management.This book is a valuable resource for professionals in design, manufacturing, project management, systems engineering, manufacturing management, reliability, usability, and quality specialists. It is also beneficial for graduate and senior undergraduate students, as well as instructors seeking to enhance organizational performance.
Navigation Control and Signal Processing Methods for Multiple Autonomous Unmanned Systems
This Reprint focuses on navigation control, signal processing, and other new methods for operating various autonomous unmanned systems at sea, on land, and in the air. Examples include a new model for multi-robot task assignment in an intelligent warehouse; a classification method based on deep learning for an ultra-wideband localization system in coal mines; an in-motion alignment method for inertial navigation systems used in underwater vehicles; a fault diagnosis method for autonomous unmanned systems; a new decoupled synchronous control method for multiple autonomous unmanned linear systems; a full-field path tracking method agricultural machinery to enhance the adaptivity of path tracking; and a novel positioning method for autonomous vehicles.
Projects Impacting Organizational Culture
Projects for continuous improvement are prevalent in today's business landscape. However, individual and organizational resistance often hinders progress and inhibits results. Projects Impacting Organizational Culture: Evolution by Integrating People into the Equation is an essential guide to prevent and manage change.
Advanced Power Electronics Technology
Power electronics have become indispensable in modern life, enabling the integration of large-scale renewable energy sources-such as photovoltaic and wind power-flexible power transmission, and highly efficient power distribution and utilization. Continuous advancements in competitive topologies, next-generation switching devices, and innovative control strategies are driving the field forward. Several typical examples illustrate these technological advancements in practice: First, modular high-voltage, high-power DC/DC converters have emerged as a crucial solution for renewable energy systems and future DC grids, addressing the growing need for efficient direct DC/DC conversion in applications ranging from utility-scale solar farms to electric vehicle charging infrastructure. Second, the adoption of wide-bandgap devices, such as GaN and SiC, is revolutionizing power conversion efficiency, offering superior performance through reduced switching losses, higher voltage tolerance, and more compact designs. Third, advanced control algorithms (e.g., fuzzy control, model predictive control, and AI-driven techniques) continue to enhance system performance, opening new possibilities in power electronics. This reprint compiles cutting-edge research from the Special Issue "Advanced Power Electronics Technology," presenting recent achievements that support the evolution of modern power grids. We hope these contributions will inspire further innovation and development in the field.
Research on the Seismic Design of Steel Frames
This Reprint brings together recent research addressing the seismic performance of steel and composite structures, with a particular focus on structural connections, retrofitting techniques, and system-level behavior. The collection includes studies on box-strengthened panel zones, end-plate connections involving weak-axis columns, and the out-of-plane deformation effects in column bases. Innovative reinforcement strategies, such as knee braces with high-hardness vises and U-shaped connectors, are examined for their contribution to aseismic resilience. Advances in cold-formed steel shear walls and circular CFST columns are also highlighted. Furthermore, the optimization of damping systems in cable-stayed bridges using surrogate modeling reflects the integration of computational intelligence in seismic design. Together, these works provide valuable insights into improving the reliability, safety, and efficiency of steel and composite structures under seismic loading, offering both experimental and numerical perspectives that support future design developments and engineering practices.
Dictionnaire Technologique ...
"Dictionnaire Technologique...", subtitled "Ptie. English-French-German", is a comprehensive trilingual dictionary of technical terms. Compiled by Alexandre Tolhausen, Louis Tolhausen, and Durand Gardissal, this reference work, originally published in 1854, provides a valuable resource for engineers, scientists, and translators working across languages. The dictionary facilitates precise communication in technical fields by offering equivalent terms in English, French, and German. Its enduring value lies in its historical significance as a record of 19th-century technological terminology and its usefulness to scholars and professionals seeking to understand the evolution of technical language.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.
Official Bulletin Of The Novelties Exhibition
Explore the world of innovation and invention through the "Official Bulletin Of The Novelties Exhibition," a historical document from the Franklin Institute in Philadelphia. This bulletin offers a fascinating glimpse into the technological advancements and groundbreaking inventions showcased at the exhibition. Discover the spirit of ingenuity and the drive for progress that defined an era. A valuable resource for historians, technology enthusiasts, and anyone interested in the evolution of American innovation.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.
Shoeing And Balancing The Light Harness Horse
"Shoeing And Balancing The Light Harness Horse" is a comprehensive guide for farriers and horse owners, written by James Clark. This practical manual covers the essential techniques of shoeing and balancing light harness horses, offering detailed instructions and insights into maintaining equine health and performance. Clark's expertise provides readers with a deep understanding of equine anatomy and the specific needs of light harness horses. Whether you are a professional farrier or a horse enthusiast, this book offers valuable knowledge for ensuring the comfort and efficiency of your horses. Discover the methods for optimal shoeing and balancing, enhancing your horse's well-being and athletic capabilities.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.
Charter and By-laws of the Enginners' Society of Western Pennsylvania ..
This volume contains the "Charter and By-laws of the Engineers' Society of Western Pennsylvania," offering a glimpse into the organizational structure and operational guidelines of this important professional body in the early 20th century. Detailing the regulations under which the society functioned, this document provides valuable insights into the governance and objectives that shaped the engineering profession in Western Pennsylvania. It serves as a primary source for understanding the historical context of engineering practices, professional standards, and the societal role of engineers during a period of significant industrial growth.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.
Practical Land Measuring
"Practical Land Measuring" is a comprehensive guide authored by Edward Ryde, offering detailed instructions and techniques for accurate land measurement. This handbook is an invaluable resource for surveyors, engineers, and anyone involved in real estate or construction. The book covers essential topics such as chain surveying, compass surveying, leveling, and the use of various instruments. Ryde's methodical approach ensures that readers gain a practical understanding of the principles and procedures involved in land measurement. With clear explanations and illustrative diagrams, this book is perfect for both students and professionals seeking to enhance their skills in this critical field.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.
Density And Thermal Expansion Of Linseed Oil And Turpentine
"Density And Thermal Expansion Of Linseed Oil And Turpentine" by Henry Walter Bearce is a technical reference work detailing the physical properties of these two important substances. This edition includes conversion tables for pounds to gallons and gallons to pounds, making it a practical tool for professionals working with these materials.Linseed oil and turpentine have a wide array of applications in various industries, and understanding their density and thermal expansion is crucial for accurate calculations and efficient processes. This book provides detailed data and insights, making it an essential resource for engineers, chemists, and anyone involved in the handling and processing of these liquids. Bearce's meticulous research offers enduring value for both historical context and practical application.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.
