522 resultater (5,91758 sekunder)

Vis alle filtre

Mærke

Butik

Pris (EUR)

Nulstil filter

Produkter
Fra
Butikker

Networked Control Systems - - Bog - Nova Science Publishers Inc - Booktok.dk

Networked Control Systems - - Bog - Nova Science Publishers Inc - Booktok.dk

Networked Control System (NCS) can be regarded as a special type of control system in which sensors, controllers and actuators are connected to a closed loop. Media-sharing characteristics, time-delay, data packet dropout and data displacement are inevitable phenomena in such a control system, which can greatly degrade the control performance, and even make the control system unstable. Alleviating these effects has become one of the most attractive research hotspots in the last two decades. All the above three problems can be summarized as the time-delay issue. There are two kinds of time-delay compensation strategies: one is active compensation, and the other is passive compensation. For the former, prediction is the core idea. Selecting the appropriate candidate predicted control action according to the time delay information is a feasible solution. For the latter, making the system insensitive to delay is a good choice. This book covers the design, modeling, control, simulation and application of the networked control system. This book addresses some original contributions reporting the latest advances in networked control. It aims to gather the latest research on state-of-the-art methods, simulations and applications of networked control techniques. The editor hopes it can reveal some tendencies in this research field and benefit readers including professional researchers and students. This is an interesting collection of networked control techniques, such as date-based control, tracking control, event-triggered control, formation control, etc.

DKK 897.00
2

Control Methodology - - Bog - Nova Science Publishers Inc - Plusbog.dk

Control Methodology - - Bog - Nova Science Publishers Inc - Plusbog.dk

This book focuses on the basics of control methodology as the theory of control activity organisation. This is done using the framework of systems analysis in the logic of modern (project-technological and knowledge-based) types of organisational culture. Consideration of the psychological, sociological, philosophical, ethical and aesthetical foundations of control methodology; characteristics, logical and temporal structures of control activity as well as the general structure of control theory and its components, give to the reader a detailed panoramic picture of modern control theory foundations. The book allows the researcher (or the manager) not only to realise "what he is doing" in his everyday activity, but to improve and optimise this activity, as well as the activity of his colleagues and subordinates.

DKK 890.00
2

NASA Security & Export Control - - Bog - Nova Science Publishers Inc - Plusbog.dk

NASA Security & Export Control - - Bog - Nova Science Publishers Inc - Plusbog.dk

Weaknesses in the National Aeronautics and Space Administration (NASA) export control policy and implementation of foreign national access procedures at some centres increase the risk of unauthorised access to export-controlled technologies. NASA policies provide Center Directors the ability to implement export controls at their centres. NASA develops sophisticated technologies and shares with them its international partners. U.S. export control regulations require NASA to identify and protect its sensitive technology; NASA delegates implementation of export controls to its 10 research and space centres. Recent allegations of export control violations at two NASA centres have raised questions about NASA''s ability to protect its sensitive technologies. GAO was asked to review NASA''s export control program. This book assesses NASA''s export control policies and how centres implement them; and the extent to which NASA Headquarters and CEAs apply oversight of centre compliance with its export control policies.

DKK 890.00
2

Process Control - Alexandra L. Varney - Bog - Nova Science Publishers Inc - Plusbog.dk

Process Control - Alexandra L. Varney - Bog - Nova Science Publishers Inc - Plusbog.dk

Process control is a multidisciplinary field that encompasses a combination of analytical and process chemistry, process engineering and multivariate data analysis. Process analytical techniques (PATs) involve monitoring and control of chemical and physical processes in order to obtain products with desired properties, to improve manufacturing efficiency and reduce process costs. PATs have been utilised in various industrial branches to gain a deeper understanding of particular process stages, identify crucial control parameters, ensure the product quality by optimal design and determine the process disturbances. This book discusses strategic management accounting and green supply chain management; analyses the plant-wide control structures for industrial processes''; the use of vibrational spectroscopy as a tool for in-line process monitoring; and effects of resolution of measurements in the behaviour of cumulative sum control charts.

DKK 1034.00
2

Continuous Process Dynamics, Stability, Control & Automation - Kal Renganathan Sharma - Bog - Nova Science Publishers Inc - Booktok.dk

Continuous Process Dynamics, Stability, Control & Automation - Kal Renganathan Sharma - Bog - Nova Science Publishers Inc - Booktok.dk

This is a modern first course on process control, instruments, process dynamics and stability. MS Excel spreadsheets are used in order to obtain solutions to non-linear equations when needed and closed form analytical solutions are obtained using Laplace transforms and other methods. The solutions are presented in 210 figures and the book has 1319 equations. With an industrial controls market size of about 150 billion dollars and a chemical process industry market size of three trillion dollars, the practioners can use this book to master techniques of P, proportional, PI, Proportional Integral, PD, Proportional Derivative feedback control, feedforword control, hybrid control, adaptive control, internal model control, ratio control, filtered real proportional integral derivative control, ANNs, artificial neural networks, SPC, and statistical process control. Control block diagrams are developed using MS Paint. Flavor for what is a continuous process is given using 18 process flow diagrams. Be it a feedback control of temperature in a mixing tank or a neural network design for a distillation column, the details and the big picture are both given. Pioneers who made this area possible include people such as Maxwell, Galileo, Sherwood, Levenspiel, Kalman, Laplace, Fermat, Damkholer, Newton, Fourier, Fick, Michaelis, Menten, Monod, Staudinger, Ziegler, Natta, Flory, Peclect, Bode, Nyquist, Biot, Bessel, Bernoulli (both father and son!), Euler, Stokes, Mach, Reynolds, Prandtl, Nusselt, Weiner, Hopf, Clapeyron, Clausius, Lorenz, and Kreb, who are mentioned where their theories were used in the analysis.

DKK 1079.00
1

Biological Control - - Bog - Nova Science Publishers Inc - Plusbog.dk

Biological Control - - Bog - Nova Science Publishers Inc - Plusbog.dk

Biological control is a plant protection strategy widely-used in horticultural cropping systems to regulate insect and mite pest populations on greenhouse-grown ornamentals and vegetables. The use of natural enemies in controlling the SWD has been researched in Chapter One. Chapter Two aims to recover the history and present the current status of the biological control of fruit flies of the genus Anastrepha and to show perspectives of the use of such method. Chapter Three discusses the advantages and issues affiliated with using natural enemies in conjunction with pesticides and provides insights on the practicality of using both plant protection strategies simultaneously. Chapter Four describes screening methods for candidate biocontrol agents, application methods and challenges associated with biological control of fungal pathogens by antagonistic microorganisms.

DKK 820.00
2

The Psychology of Self-Control - - Bog - Nova Science Publishers Inc - Plusbog.dk

The Psychology of Self-Control - - Bog - Nova Science Publishers Inc - Plusbog.dk

The Psychology of Self-Control reviews evidence that indicates low self-control is among the most important individual risk factors for criminal offending. A developmental pathway that begins with this risk factor and leads to criminal offending is presented, and treatment recommendations for reducing the risk that low self-control poses for criminal offending are discussed. Following this, the authors seek to explain why young adolescents have an increased likelihood of becoming involved in a troublesome youth group. Social developmental, personal, and situational risk factors are combined under the umbrella of an integrated theoretical framework that stresses the importance of the moral sense as an important mediator in the relationship between adverse developmental conditions, juvenile delinquency, and troublesome youth group involvement. The authors also test the interaction between choosing a violent response, the inability to resist temptation, and exposure to scenario-criminogeneity using a web-based randomized scenario study. The results indicate that individuals who are able to resist temptation are unlikely to choose a violent response independent of scenario criminogeneity. In the penultimate chapter, the psychological and physiological components of self-control are explored. Then, the developmental aspects of self-control, with a special focus on adolescence, are briefly presented. In conclusion, this collection reviews recent research from McCarter and Winn about the role of stakes in English auctions over Amazon.com gift cards, consumer products on eBay, and items in the behavioral laboratory. Then, the results of an experiment manipulating stakes in penny auctions are reported.

DKK 757.00
2

Yacht Modelling & Adaptive Control - Sing Kiong Nguang - Bog - Nova Science Publishers Inc - Plusbog.dk

Yacht Modelling & Adaptive Control - Sing Kiong Nguang - Bog - Nova Science Publishers Inc - Plusbog.dk

Marine vessels, including wind-powered yachts, are continually required to be able to operate with properties of being more reliable, comfortable and economical. Recently, the global economic integration has intensified world-wide competition and increased the demand for sea freights. This demand has stimulated the development of marine vessels which are larger, faster and safer. The crisis of non-renewable energy and its steady increase in price leads to higher requirements of energy efficiency by marine vessels. This increased awareness of protecting the environment has ensured that there are now stricter standards in controlling ocean pollutions hence it leads to more demands on marine vessel control. These increases in performance and fuel saving can be achieved through incorporating advanced control technologies. Adaptive and artificial intelligent control strategies, by connecting to the dynamics of a marine vessel, enable the vessel to follow an optimal course or track with minimum rudder action, resulting in collision avoidance and energy saving. Smaller marine vessels such as yachts are often powerless against sea conditions, hence advanced control algorithms combined with modern guidance technology such as global positioning system (GPS), increase the safety of the navigation. As a consequence, the autopilot system which integrates the electronic hardware and the control algorithms has become standard use for commercial and military marine vessels, and is becoming essential equipment for smaller marine vessels such as leisure boats and yachts.

DKK 885.00
2

Viscoelastic Surface Treatments for Passive Control of Structural Vibration - - Bog - Nova Science Publishers Inc - Plusbog.dk

Viscoelastic Surface Treatments for Passive Control of Structural Vibration - - Bog - Nova Science Publishers Inc - Plusbog.dk

This book deals with the structural vibration reduction making use of passive damping control techniques by means of surface treatments with viscoelastic materials. In fact, this kind of vibration control technique is largely utilised nowadays for several industrial applications, such as aeronautical and automotive components. In this context, this work involves a double objective. On the one hand, a classical and contemporarily relevant survey on different subjects concerning viscoelastic treatments is provided. On the other hand, two examples of application are shown.

DKK 588.00
2

Arms Control & Nonproliferation - - Bog - Nova Science Publishers Inc - Booktok.dk

Arms Control & Nonproliferation - - Bog - Nova Science Publishers Inc - Booktok.dk

In a world where the Cold War has ended, at least for the time being, arms control has leapt to the forefront of critical issues. Nuclear weapons become smaller by the day and are then able to be carried in a briefcase. Knowledge of how to use doomsday weapons is spreading faster than the Internet. This book examines current issues in the field and efforts to halt or at least slow down proliferation.

DKK 783.00
1

Pollution Control - - Bog - Nova Science Publishers Inc - Plusbog.dk

Pollution Control - - Bog - Nova Science Publishers Inc - Plusbog.dk

Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms. Pollution can take the form of chemical substances, or energy, such as noise, heat, or light. Pollutants, the elements of pollution, can be foreign substances or energies, or naturally occurring; when naturally occurring, they are considered contaminants when they exceed natural levels. This book reviews research on global pollution control including organic waste valorisation in agriculture and its environmental risk implications, natural and anthropic stressors on freshwater decapod crustaceans, and others.

DKK 687.00
2

Control Methods for Unwanted Anurans - - Bog - Nova Science Publishers Inc - Plusbog.dk

Control Methods for Unwanted Anurans - - Bog - Nova Science Publishers Inc - Plusbog.dk

Anurans (frogs and toads) worldwide are threatened by habitat loss, emerging infectious diseases, overexploitation, pollution, climatic change and introduction of exotic species. As a result of human activities, some anurans have actually increased their distribution and are now doing extremely well in places far outside of their natural range. But these anurans are often unwanted in the introduced range because they may disturb recipient ecosystems and pose a threat to indigenous fauna, including native amphibians. This book reviews anuran biology and discusses some life history traits that may be suitable for targeted control measures.

DKK 534.00
2

Tobacco Control in the Workplace - - Bog - Nova Science Publishers Inc - Plusbog.dk

Tobacco Control in the Workplace - - Bog - Nova Science Publishers Inc - Plusbog.dk

Tobacco products are legal and lethal, and they have numerous adverse impacts in the workplace. Besides being causes of increased healthcare costs and disability from the major tobacco-caused illnesses, tobacco products are also associated with greater absenteeism, decrements in job performance, and increased risk of injury. Tobacco exacts a disproportionate toll on individuals employed in blue-collar jobs who experience greater exposure to workplace toxins that can increase their risk of adverse effects from tobacco smoking. Second-hand tobacco smoke is a major air pollution problem. Persons employed in the hospitality industry and working class occupations are least protected by smoke-free workplace policies. This book provides an overview of recent advances that may help to reduce occupation-based inequities in tobacco harm, including a social contextual intervention model that integrates smoking cessation and occupational health and safety, and a new national effort to link labour unions and tobacco control organisations around their shared interest in reducing tobacco''s threat to workers'' health. The implications of these efforts for future research and action are highlighted. Combining sound workplace policies and tobacco dependence treatment with organised labour involvement in tobacco control provides synergies to reduce tobacco use in the workforce. These activities benefit workers and their families, employers, and society at large.

DKK 687.00
2