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Showing 62,351 through 62,375 of 66,441 results

Trace Elemental Analysis of Metals: Methods and Techniques

by Thomas R. Dulski

This work details minor, trace and ultratrace methods; addresses the essential stages that precede measurement; and highlights the measurement systems most likey to be used by the pragmatic analyst. It features key material on inclusion and phase isolation. The book is designed to provide useful maps and signposts for metals analysts who must verify that stringent trace level compositional specifications have been met.

Trace Elements in Abiotic and Biotic Environments

by Alina Kabata-Pendias Barbara Szteke

This book helps readers understand the fundamental principles and phenomena that control the transfer of trace elements. It describes the occurrence and behavior of trace elements in rocks, soil, water, air, and plants, and also discusses the anthropogenic impact to the environment. In addition, the book covers the presence of trace elements in feeds, as either contaminants or as nutritional or zootechnical additives, and their transfer across the food chain to humans. All trace elements are covered-from aluminum to zirconium-as well as rare-earth elements (actinides and lanthanides).

Trace Elements in Coal and Coal Combustion Residues (Advances In Trace Substances Research Ser. #5)

by Robert F. Keefer Kenneth S. Sajwan

Trace Elements in Coal and Coal Combustion Residues focuses on trace metal chemistry of coal and coal combustion residues. Special emphasis is placed on management of coal combustion residues in electric power plants and the influence of coal and associated residues on soils, plants, water, and animals. Topics covered include a brief summary of research sponsored by Electric Power Research Institute, environmental pollution from coal combustion plants in low-rainfall regions, accumulation of trace elements in freshwater mussels near a power plant, testing to evaluate fossil fuel wastes by chemicals and isotopes, transport of metals from coal piles and ash impoundments, leachability and toxicity of metals in fly ash, and plant absorption of chemicals from ash. The book will be a useful reference for environmental and reclamation consultants, environmental engineers, toxicologists, environmental regulatory personnel, officials with electric power utilities and water treatment plants, and soil scientists.

Trace Elements in Waterlogged Soils and Sediments (Advances in Trace Elements in the Environment #3)

by Anna Sophia Knox Michael Paller

Many wetlands around the world act as sinks for pollutants, in particular for trace elements. In comparison to terrestrial environments, wetlands are still far less studied. A collaborative effort among world experts, this book brings the current knowledge concerning trace elements in temporary waterlogged soils and sediments together. It discusses factors controlling the dynamics and release kinetics of trace elements and their underlying biogeochemical processes. It also discusses current technologies for remediating sites contaminated with trace metals, and the role of bioavailability in risk assessment and regulatory decision making. This book is intended for professionals around the world in disciplines related to contaminant bioavailability in aquatic organisms, contaminant fate and transport, remediation technologies, and risk assessment of aquatic and wetland ecosystems.

Trace Environmental Quantitative Analysis: Including Student-Tested Experiments

by Paul R. Loconto

A thorough and timely update, this new edition presents principles, techniques, and applications in this sub-discipline of analytical chemistry for quantifying traces of potentially toxic organic and inorganic chemical substances found in air, soil, fish, and water, as well as serum, plasma, urine, and other body fluids. The author addresses regulatory aspects, calibration, verification, and the statistical treatment of analytical data including instrument detection limits; quality assurance/quality control; sampling and sample preparation; and techniques that are used to quantify trace concentrations of organic and inorganic chemical substances. Key Features: Fundamental principles are introduced for the more significant experimental approaches to sample preparation Principles of instrumental analysis (determinative techniques) for trace organics and trace inorganics analysis An introduction to the statistical treatment of trace analytical data How to calculate instrument detection limits based on weighted least squares confidence band calibration statistics Includes an updated series of student-tested experiments

Trace Minerals in Foods

by K. Smith

Twelve contributions evaluate the chemistry of trace elements in preparations and their potential bioavailability to the consumer; consider palatability, mineral interactions, and other nutritional factors; discuss trace elements' biology and pharmacokinetics to facilitate the development of protoco

Traceability, Validation and Measurement Uncertainty in Chemistry: Practical Examples

by Nineta Hrastelj Ricardo Bettencourt da Silva

This book presents worked examples of five analytical procedures. These practical examples address traceability, validation and measurement uncertainty aspects in a systematic and consistent way, and cover applications in the analysis of water, food, as well as ores and minerals. This concept is based on the experiences of the TrainMiCc program, in which more than 9000 laboratory professionals all over Europe have participated.

Tracer (Outer Earth #1)

by Rob Boffard

Imagine The Bourne Identity meets Gravity and you'll get TRACER, the most exciting action thriller set in space you'll ever read.Sarah Lotz, author of The Three calls it "fast, exhilarating and unforgettable."A huge space station orbits the Earth, holding the last of humanity. It's broken, rusted, falling apart. We've wrecked our planet, and now we have to live with the consequences: a new home that's dirty, overcrowded and inescapable.What's more, there's a madman hiding on the station. He's about to unleash chaos. And when he does, there'll be nowhere left to run.In space, every second counts. Who said nobody could hear you scream? "A stunning debut that never lets up, from the nerve-jangling beginning to the explosive end." James Douglas, author of The Doomsday Machine

Tracer Hydrology 97

by A. Kranjc

This collection of papers is the proceedings of the 7th International Synosium on Water Tracing in Portoroz/Slovenia from 26-31 May 1997. They address a number of topics in hydrology tracing techniques including: protection of natural resources against pollution; the use of natural and artificial tracers to help to assess contaminant transport in surface waters; and aquifer parameters and modelling.

Tracer Technology

by Octave Levenspiel

The tracer method was first introduced to measure the actual flow of fluid in a vessel, and then to develop a suitable model to represent this flow. Such models are used to follow the flow of fluid in chemical reactors and other process units, in rivers and streams, and through soils and porous structures. Also, in medicine they are used to study the flow of chemicals, harmful or not, in the blood streams of animals and man. Tracer Technology, written by Octave Levenspiel, shows how we use tracers to follow the flow of fluids and then we develop a variety of models to represent these flows. This activity is called tracer technology.

Traces of Common Xylophagous Insects in Wood: Atlas of Identification - Western Europe

by Magali Toriti Aline Durand Fabien Fohrer

This atlas presents a concrete tool to identify xylophagous activity by the remains they left in wooded areas in Western Europe. Xylophagous insects are among the largest predators of woody tissues. They leave discriminating traces, different for each species according to their bioecology, and so it is necessary to know how to recognize and characterize them. The book is a practical tool to help identify and interpret them through a standardized presentation of the most ubiquitous families and a key to their determination. It presents descriptions of the galleries and of morphometry of the faecal pellets based on macroscopic features for xylophagous identification, and includes information about the origin and distribution of the xylophagous biological cycles, bioclimatic conditions and bioecology, and the type of woods that are attacked. The book will be a useful guide for forest managers, heritage conservationists, environmental engineers, bioarchaeologists, entomologists, loggers, and wood anatomists.

Tracing Technique in Geohydrology

by Werner Kass

This translation of the original German textbook, Hydrogeologie, summarizes tracing techniques. Individual chapters have been contributed by relevant experts from geology, hydrology, chemistry and virology, and engineering and isotope specialists. Text contributions are complemented by numerous figures. A cd rom will assist in the evaluation and presentation of data from tracing tests.

Tracing the Sources and Fate of Contaminants in Agroecosystems: Applications of Multi-stable Isotopes

by Lee Heng Joseph Adu-Gyamfi Grzegorz Skrzypek Gwenaël Imfeld

The objective of this open access book is to present protocols, methodologies, and standard operating procedures (SOPs) used for the identification of sources, transport, and fate of agro-contaminants and illustrate them with several case studies of successful applications. The Soil and Water Management & Crop Nutrition (SWMCN) Subprogramme of the Joint Food and Agriculture Organization (FAO)/International Atomic Energy Agency (IAEA) Centre of Nuclear Techniques in Food and Agriculture, through a Coordinated Research Project (CRP) in partnership with national and international research institutes, developed and evaluated a set of analytical techniques (the toolbox). The toolbox integrates multiple isotope tracers that provide information on the origins and pathways of multiple pollutants through agro-ecosystems, thereby providing more accurate guidance on mitigations. However, land management strategies to address and control the transport of pollutants from soil to water bodies remain the shared responsibility of farm and aquaculture operators, agro-chemical manufacturers, and policymakers in food and agriculture as well as the mining sectors. This book is structured into eight chapters covering (i) an overview of the book’s content, (ii) guidelines for designing water sampling programmes, (iii) the use of mixing models applicable to tracers for water pollution studies, (iv) compound-specific isotope analyses to investigate pesticide degradation in agricultural catchments, (v) the use of stable oxygen isotope composition of phosphate to investigate phosphorous in soil-plant continuum, (vi) the use of stable sulphur isotopes to disentangle agro-pollutants from other contaminants, (vii) nuclear tools used in sediment source apportionment, and (viii) the conclusions and perspectives forward. The book offers up-to-date information, and we hope it is a great source of information for students, researchers, and policymakers. The SWMCN subprogramme thanks all the contributors involved in the preparation of this publication.

Track and Trace Management System for Dementia and Intellectual Disabilities (Advanced Technologies and Societal Change)

by Suresh Merugu Amit Kumar George Ghinea

This book reviews humanitarian literature and presents the development of low-cost track & trace management system integrated with accurate GPS location data pinging using Internet of Things (IoT). The first part relates to mobile device configuration with an embedded GPS and wireless Internet connection to transmit its current location. The second part presents web server implementation and development that receives the data, parses it, and stores it for access over the Internet. The third part discusses the user interface that allows one to visually identify the current location of the device.

Track-Before-Detect Using Expectation Maximisation

by Samuel J. Davey Han X. Gaetjens

This book offers a detailed description of the histogram probabilistic multi-hypothesis tracker (H-PMHT), providing an accessible and intuitive introduction to the mathematical mechanics of H-PMHT as well as a definitive reference source for the existing literature on the method. Beginning with basic concepts, the authors then move on to address extensions of the method to a broad class of tracking problems. The latter chapters present applications using recorded data from experimental radar, sonar and video sensor systems. The book is supplemented with software that both furthers readers’ understanding and acts as a toolkit for those who wish to apply the methods to their own problems.

Track Changes: A Literary History of Word Processing

by Matthew G. Kirschenbaum

Writing in the digital age has been as messy as the inky rags in Gutenberg's shop or the molten lead of a Linotype machine. Matthew Kirschenbaum examines how creative authorship came to coexist with the computer revolution. Who were the early adopters, and what made others anxious? Was word processing just a better typewriter, or something more?

Trackability and Tracking of General Linear Systems

by Lyubomir Gruyitch

Trackability and Tracking of General Linear Systems deals with five classes of the systems, three of which are new, begins with the definition of time together with a brief description of its crucial properties and with the principles of the physical uniqueness and continuity of physical variables. They are essential for the natural tracking control synthesis. The book presents further new results on the new compact, simple and elegant calculus that enabled the generalization of the transfer function matrix concept and of the state concept, the completion of the trackability and tracking concepts together with the proofs of the trackability and tracking criteria, as well as the natural tracking control synthesis for all five classes of the systems. Features • Crucially broadens the state space concept and the complex domain fundamentals of the dynamical systems to the control systems. • Addresses the knowledge and ability necessary to study and design control systems that will satisfy the fundamental control goal. • Outlines new effective mathematical means for effective complete analysis and synthesis of the control systems. • Upgrades, completes and essentially generalizes the control theory beyond the existing boundaries. • Provides information necessary to create and teach advanced inherently upgraded control courses.

Tracking and Mapping of Spatiotemporal Quantities Using Unicellular Swarm Intelligence

by John Oluwagbemiga Oyekan

The book discusses new algorithms capable ofsearching for, tracking, mapping and providing a visualization of invisiblesubstances. It reports on the realization of a bacterium-inspired roboticcontroller that can be used by an agent to search for any environmental spatialfunction such as temperature or pollution. Using the parameters of amathematical model, the book shows that it is possible to control theexploration, exploitation and sensitivity of the agent. This feature sets thework apart from the usual method of applying the bacterium behavior to roboticagents. The book also discusses how a computationally tractable multi-agentrobotic controller was developed and used to track as well as provide a visualmap of a spatio-temporal distribution of a substance. On the one hand, thisbook provides biologists and ecologists with a basis to perform simulationsrelated to how individual organisms respond to spatio-temporal factors in theirenvironment as well as predict and analyze the behavior of organisms at apopulation level. On the other hand, it offers robotic engineers practical andfresh insights into the development of computationally tractable algorithms forspatial exploratory and mapping robots. It also allows a more general audienceto gain an understanding of the design of computational intelligence algorithmsfor autonomous physical systems.

Tracking and Preventing Diseases with Artificial Intelligence (Intelligent Systems Reference Library #206)

by Mayuri Mehta Philippe Fournier-Viger Maulika Patel Jerry Chun-Wei Lin

This book presents an overview of how machine learning and data mining techniques are used for tracking and preventing diseases. It covers several aspects such as stress level identification of a person from his/her speech, automatic diagnosis of disease from X-ray images, intelligent diagnosis of Glaucoma from clinical eye examination data, prediction of protein-coding genes from big genome data, disease detection through microscopic analysis of blood cells, information retrieval from electronic medical record using named entity recognition approaches, and prediction of drug-target interactions.The book is suitable for computer scientists having a bachelor degree in computer science. The book is an ideal resource as a reference book for teaching a graduate course on AI for Medicine or AI for Health care. Researchers working in the multidisciplinary areas use this book to discover the current developments. Besides its use in academia, this book provides enough details about the state-of-the-art algorithms addressing various biomedical domains, so that it could be used by industry practitioners who want to implement AI techniques to analyze the diseases. Medical institutions use this book as reference material and give tutorials to medical experts on how the advanced AI and ML techniques contribute to the diagnosis and prediction of the diseases.

Tracking and Sensor Data Fusion

by Wolfgang Koch

Sensor Data Fusion is the process of combining incomplete and imperfect pieces of mutually complementary sensor information in such a way that a better understanding of an underlying real-world phenomenon is achieved. Typically, this insight is either unobtainable otherwise or a fusion result exceeds what can be produced from a single sensor output in accuracy, reliability, or cost. This book provides an introduction Sensor Data Fusion, as an information technology as well as a branch of engineering science and informatics. Part I presents a coherent methodological framework, thus providing the prerequisites for discussing selected applications in Part II of the book. The presentation mirrors the author's views on the subject and emphasizes his own contributions to the development of particular aspects. With some delay, Sensor Data Fusion is likely to develop along lines similar to the evolution of another modern key technology whose origin is in the military domain, the Internet. It is the author's firm conviction that until now, scientists and engineers have only scratched the surface of the vast range of opportunities for research, engineering, and product development that still waits to be explored: the Internet of the Sensors.

Tracking Control of Linear Systems

by Lyubomir T. Gruyitch

The primary purpose of control is to force desired behavior in an unpredictable environment, under the actions of unknown, possibly unmeasurable disturbances and unpredictable, and therefore probably nonzero, initial conditions. This means that tracking and tracking control synthesis are fundamental control issues. Surprisingly, however, tracking theory has not been well developed, and stability theory has dominated. Tracking Control of Linear Systems presents the fundamentals of tracking theory for control systems. The book introduces the full transfer function matrix F(s), which substantially changes the theory of linear dynamical and control systems and enables a novel synthesis of tracking control that works more effectively in real environments.An Introduction to the New Fundamentals of the Theory of Linear Control SystemsThe book begins by re-examining classic linear control systems theory. It then defines and determines the system full (complete) transfer function matrix F(s) for two classes of systems: input-output (IO) control systems and input-state-output (ISO) control systems. The book also discusses the fundamentals of tracking and trackability. It presents new Lyapunov tracking control algorithms and natural tracking control (NTC) algorithms, which ensure the quality of the tracking under arbitrary disturbances and initial conditions. This natural tracking control is robust, adaptable, and simple to implement.Advances in Linear Control Systems Theory: Tracking and TrackabilityThis book familiarizes readers with novel, sophisticated approaches and methods for tracking control design in real conditions. Contributing to the advancement of linear control systems theory, this work opens new directions for research in time-invariant continuous-time linear control systems. It builds on previous works in the field, extending treatment o

Tracking Control of Networked Systems via Sliding-Mode

by Meng Li Yong Chen Ikram Ali

The book focuses on the research methods of networked control systems via sliding mode. The problems with network disturbances, network induced delay, out-of-sequence and packet loss, and network attacks are studied in detail. The content studied in this book is introduced in detail and is verified by simulation or experiment. It is especially suitable for readers who are interested in learning the control scheme of networked systems. This book can benefit researchers, engineers, and students in related fields such as electrical, control, automation, and cyber security.

Tracking Differentiator Algorithms: Theories, Implementations and Applications (Lecture Notes in Electrical Engineering #717)

by Hehong Zhang Gaoxi Xiao Yunde Xie Wenzhong Guo Chao Zhai

This book highlights designs, implementations and applications of tracking differentiator (TD) algorithms. The real-time differentiation estimation of a given signal is of high importance in control science and engineering. A good differentiator shall have i) robustness against input noises and ii) exactness with a small phase delay. The book has three focuses:Designing practical, accurate and efficient TD based on discrete-time optimal control (DTOC).Presenting full convergence analysis on DTOC-TDs.Implementing the DTOC-TDs in state estimations in power systems and signal processing, as well as feedback control in maglev train.The proposed TD solution and its successful real-life applications shall stimulate wide interests in different areas including power systems, railway transportations and aerospace industry, etc.

Tracking People: Wearable Technologies in Social and Public Policy

by Raymond Holt

Tracking technologies are now ubiquitous and are part of many people’s everyday lives. Large sections of the population voluntarily use devices and apps to track fitness, medical conditions, sleep, vital signs or their own or others’ whereabouts. Governments, health services, immigration and criminal justice agencies increasingly rely upon tracking technologies to monitor individuals’ whereabouts, behaviour, medical conditions and interventions. Despite the human rights concerns of some organisations and individuals, most wearers and their significant others tend to welcome the technologies. This paradox is only one of the many fascinating challenges raised by the widespread use of tracking technologies which are explored in this book. This book critically explores the ethical, legal, social, and technical issues arising from the current and future use of tracking technologies. It provides a unique and wide-ranging discussion, via a cross-disciplinary collection of essays, on issues relating to technological devices and apps whose use is imposed upon wearers or suggested by others, whether agencies or individuals, including in the domains of criminal justice, terrorism, and health and social care. Contributions from leading academics from across social sciences, engineering, computer and data science, philosophy, and health and social care address the diverse uses of tracking technologies including with individuals with dementia, defendants and offenders, individuals with mental health conditions and drug users alongside legal, ethical and normative questions about the appropriate use of these technologies. Cross-disciplinary themes emerge focusing on both the benefits of the technologies – freedom, improved safety, security, well-being and autonomy, and increased capacity of and efficiencies for public services – and the challenges – implementation and operational costs, mission creep, privacy concerns, stigmatisation, whether the technologies work as expected, and useability and wearability for all wearers. This book is essential reading for academics and students engaged in criminology, criminal justice, socio-legal studies, science and technology studies, medicine, health and social care, psychology, engineering, computer and data science, philosophy, social policy and social work and security studies. It will also be of great interest to policy-makers, regulators, practitioners already deploying or considering using tracking technologies, and to current and potential wearers.

Tracking with Particle Filter for High-dimensional Observation and State Spaces

by Séverine Dubuisson

This title concerns the use of a particle filter framework to track objects defined in high-dimensional state-spaces using high-dimensional observation spaces. Current tracking applications require us to consider complex models for objects (articulated objects, multiple objects, multiple fragments, etc.) as well as multiple kinds of information (multiple cameras, multiple modalities, etc.). This book presents some recent research that considers the main bottleneck of particle filtering frameworks (high dimensional state spaces) for tracking in such difficult conditions.

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