Analysis of Charge Transport

Analysis of Charge Transport PDF Author: Joseph W. Jerome
Publisher: Springer Science & Business Media
ISBN: 3642799876
Category : Mathematics
Languages : en
Pages : 177

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Book Description
This book addresses the mathematical aspects of semiconductor modeling, with particular attention focused on the drift-diffusion model. The aim is to provide a rigorous basis for those models which are actually employed in practice, and to analyze the approximation properties of discretization procedures. The book is intended for applied and computational mathematicians, and for mathematically literate engineers, who wish to gain an understanding of the mathematical framework that is pertinent to device modeling. The latter audience will welcome the introduction of hydrodynamic and energy transport models in Chap. 3. Solutions of the nonlinear steady-state systems are analyzed as the fixed points of a mapping T, or better, a family of such mappings, distinguished by system decoupling. Significant attention is paid to questions related to the mathematical properties of this mapping, termed the Gummel map. Compu tational aspects of this fixed point mapping for analysis of discretizations are discussed as well. We present a novel nonlinear approximation theory, termed the Kras nosel'skii operator calculus, which we develop in Chap. 6 as an appropriate extension of the Babuska-Aziz inf-sup linear saddle point theory. It is shown in Chap. 5 how this applies to the semiconductor model. We also present in Chap. 4 a thorough study of various realizations of the Gummel map, which includes non-uniformly elliptic systems and variational inequalities. In Chap.

Analysis of Charge Transport

Analysis of Charge Transport PDF Author: Joseph W. Jerome
Publisher: Springer Science & Business Media
ISBN: 3642799876
Category : Mathematics
Languages : en
Pages : 177

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Book Description
This book addresses the mathematical aspects of semiconductor modeling, with particular attention focused on the drift-diffusion model. The aim is to provide a rigorous basis for those models which are actually employed in practice, and to analyze the approximation properties of discretization procedures. The book is intended for applied and computational mathematicians, and for mathematically literate engineers, who wish to gain an understanding of the mathematical framework that is pertinent to device modeling. The latter audience will welcome the introduction of hydrodynamic and energy transport models in Chap. 3. Solutions of the nonlinear steady-state systems are analyzed as the fixed points of a mapping T, or better, a family of such mappings, distinguished by system decoupling. Significant attention is paid to questions related to the mathematical properties of this mapping, termed the Gummel map. Compu tational aspects of this fixed point mapping for analysis of discretizations are discussed as well. We present a novel nonlinear approximation theory, termed the Kras nosel'skii operator calculus, which we develop in Chap. 6 as an appropriate extension of the Babuska-Aziz inf-sup linear saddle point theory. It is shown in Chap. 5 how this applies to the semiconductor model. We also present in Chap. 4 a thorough study of various realizations of the Gummel map, which includes non-uniformly elliptic systems and variational inequalities. In Chap.

Transportation Systems Analysis

Transportation Systems Analysis PDF Author: Ennio Cascetta
Publisher: Springer Science & Business Media
ISBN: 0387758577
Category : Business & Economics
Languages : en
Pages : 753

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Book Description
"This book provides a rigorous and comprehensive coverage of transportation models and planning methods and is a must-have to anyone in the transportation community, including students, teachers, and practitioners." Moshe Ben-Akiva, Massachusetts Institute of Technology.

Standard Transport Appraisal Methods

Standard Transport Appraisal Methods PDF Author:
Publisher: Academic Press
ISBN: 0128208228
Category : Law
Languages : en
Pages : 336

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Book Description
Standard Transport Appraisal Methods, Volume 6 in the Advances in Transport Policy and Planning series, assesses both successful and unsuccessful practices and policies from around the world. Chapters in this new release include Transport models, Cost-Benefit Analysis, Value of Travel Time Savings and reliability, Value of Statistical Life, Wider economic benefits, Multi-criteria analysis, Best-Worst Method, Participatory Value Evaluation, Ex-post evaluation, Sustainability assessment, Evaluating Transport Equity, Environmental Impact Assessment, Decision-Support Systems, Deliberative appraisal methods, Critique on appraisal methods, Appraisal methods in developing countries, Research agenda for appraisal methods, and much more. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Advances in Transport Policy and Planning series

Analysis of Transport Phenomena

Analysis of Transport Phenomena PDF Author: William Murray Deen
Publisher: Oxford University Press, USA
ISBN: 9780199740284
Category : Chemical engineering
Languages : en
Pages : 0

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Book Description
Analysis of Transport Phenomena, Second Edition, provides a unified treatment of momentum, heat, and mass transfer, emphasizing the concepts and analytical techniques that apply to these transport processes. The second edition has been revised to reinforce the progression from simple to complex topics and to better introduce the applied mathematics that is needed both to understand classical results and to model novel systems. A common set of formulation, simplification, and solution methods is applied first to heat or mass transfer in stationary media and then to fluid mechanics, convective heat or mass transfer, and systems involving various kinds of coupled fluxes. FEATURES: * Explains classical methods and results, preparing students for engineering practice and more advanced study or research * Covers everything from heat and mass transfer in stationary media to fluid mechanics, free convection, and turbulence * Improved organization, including the establishment of a more integrative approach * Emphasizes concepts and analytical techniques that apply to all transport processes * Mathematical techniques are introduced more gradually to provide students with a better foundation for more complicated topics discussed in later chapters

Accessibility Analysis and Transport Planning

Accessibility Analysis and Transport Planning PDF Author: Karst T. Geurs
Publisher: Edward Elgar Publishing
ISBN: 1781000115
Category : Transportation
Languages : en
Pages : 321

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Book Description
Accessibility is a concept central to integrated transport and land use planning. The goal of improving accessibility Ð for all modes, for all people Ð has made its way into mainstream transport policy and planning in communities worldwide. This unique book introduces new accessibility approaches to transport planning across Europe and the United States. The expert contributors present advanced interdisciplinary approaches in accessibility research and modelling with best practices in accessibility planning and evaluation, to better support integrated transport and land-use policy-making. This book will prove an absorbing read for scholars, researchers and students working on accessibility issues across different academic fields including transport geography, spatial economics and social science. Transport and urban planners will also find the book to be an invaluable reference tool.

Air Transport System Analysis and Modelling

Air Transport System Analysis and Modelling PDF Author: Milan Janic
Publisher: CRC Press
ISBN: 1482287544
Category : Technology & Engineering
Languages : en
Pages : 318

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Book Description
Presenting a comprehensive coverage, Air Transport System Analysis and Modelling is a unique text dealing with the analysis and modelling of the processes and operations carried out in all three parts of the air transport system, namely, airports, air traffic control and airlines. Seen from a planners point of view, this book provides insights into

Scaling Analysis in Modeling Transport and Reaction Processes

Scaling Analysis in Modeling Transport and Reaction Processes PDF Author: William B. Krantz
Publisher: John Wiley & Sons
ISBN: 0470121920
Category : Technology & Engineering
Languages : en
Pages : 576

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Book Description
This book is unique as the first effort to expound on the subject of systematic scaling analysis. Not written for a specific discipline, the book targets any reader interested in transport phenomena and reaction processes. The book is logically divided into chapters on the use of systematic scaling analysis in fluid dynamics, heat transfer, mass transfer, and reaction processes. An integrating chapter is included that considers more complex problems involving combined transport phenomena. Each chapter includes several problems that are explained in considerable detail. These are followed by several worked examples for which the general outline for the scaling is given. Each chapter also includes many practice problems. This book is based on recognizing the value of systematic scaling analysis as a pedagogical method for teaching transport and reaction processes and as a research tool for developing and solving models and in designing experiments. Thus, the book can serve as both a textbook and a reference book.

Modeling of Transport Demand

Modeling of Transport Demand PDF Author: V.A Profillidis
Publisher: Elsevier
ISBN: 0128115149
Category : Social Science
Languages : en
Pages : 500

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Book Description
Modeling of Transport Demand explains the mechanisms of transport demand, from analysis to calculation and forecasting. Packed with strategies for forecasting future demand for all transport modes, the book helps readers assess the validity and accuracy of demand forecasts. Forecasting and evaluating transport demand is an essential task of transport professionals and researchers that affects the design, extension, operation, and maintenance of all transport infrastructures. Accurate demand forecasts are necessary for companies and government entities when planning future fleet size, human resource needs, revenues, expenses, and budgets. The operational and planning skills provided in Modeling of Transport Demand help readers solve the problems they face on a daily basis. Modeling of Transport Demand is written for researchers, professionals, undergraduate and graduate students at every stage in their careers, from novice to expert. The book assists those tasked with constructing qualitative models (based on executive judgment, Delphi, scenario writing, survey methods) or quantitative ones (based on statistical, time series, econometric, gravity, artificial neural network, and fuzzy methods) in choosing the most suitable solution for all types of transport applications. Presents the most recent and relevant findings and research - both at theoretical and practical levels - of transport demand Provides a theoretical analysis and formulations that are clearly presented for ease of understanding Covers analysis for all modes of transportation Includes case studies that present the most appropriate formulas and methods for finding solutions and evaluating results

Integrating Human Factors Methods and Systems Thinking for Transport Analysis and Design

Integrating Human Factors Methods and Systems Thinking for Transport Analysis and Design PDF Author: Gemma J. M. Read
Publisher: CRC Press
ISBN: 1317115260
Category : Computers
Languages : en
Pages : 238

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Book Description
Governments and road safety agencies around the world have either introduced or are considering 'safe system' strategies, a long overdue acknowledgement that different elements of the road system contribute to road safety outcomes. Human factors approaches have a leading role here in both conceptualising the road system as a complex sociotechnical system and in providing practical approaches to support true systems-based countermeasures. This book illustrates the potential for integrating contemporary systems-based human factors methods with modern day driving-assessment methods, such as vehicle instrumentation and driving simulation, to understand and enhance performance in modern day road-transport systems. The book outlines why a fundamental paradigm shift is needed in the way these systems are designed and operated, and illustrates how a wide range of accepted human-factors approaches can be applied successfully to road transport to revolutionise the countermeasure design process. The practical illustrations of these human factors methods are applied to a long-standing road and rail safety issue: rail level crossings, where the road and rail systems intersect. The final chapter of the book highlights the utility of the human factors approach to reducing road trauma and discusses future applications of the approach.

Nodes in Transport Networks – Research, Data Analysis and Modelling

Nodes in Transport Networks – Research, Data Analysis and Modelling PDF Author: Elżbieta Macioszek
Publisher: Springer Nature
ISBN: 3030391094
Category : Technology & Engineering
Languages : en
Pages : 199

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Book Description
The publication delivers numerous valuable guidelines, particularly useful when making decisions related in the subject matter to road and rail nodes located in dense transport networks. The know-how displayed while discussing practical examples as well as the decision making support systems described in the publication will certainly attract the interest of those who daily face the challenge of seeking solutions to the operational and functional problems of transport nodes in contemporary transport networks and systems. This publication is dedicated to local authorities involved in planning and preparation of development strategies for specific transport-related issues (in both urban and regional areas) as well as to representatives of business and industry, being those who participate directly in the implementation of traffic engineering solutions. The guidelines provided in individual chapters of the publication will make it possible to address the given problem in an advanced manner and simplify the choice of appropriate strategies (including those related to synchronisation of road traffic streams, improving the capacity, road traffic safety analysis, evaluation of changes in drivers’ behaviour on account of introducing countdown timers at signal-controlled intersections using UAV data, the influence of the type of traffic organisation on the behaviour of pedestrians at tram line crossings). On the other hand, since the publication also concerns the new approach to theoretical models (including potential places of integration of public transport with the railway network or the speed adviser for pedestrians enabling them to choose the optimal path at signal-controlled intersections), it should also attract the attention of researches and scientists studying this body of problems. The publication entitled "Nodes in transport networks - research, data analysis and modelling" contains selected papers submitted to and presented at the 16th ”Transport Systems. Theory and Practice” Scientific and Technical Conference organized by the Department of Transport Systems and Traffic Engineering at the Faculty of Transport of the Silesian University of Technology. The conference was held on 16-18 September 2019 in Katowice (Poland).