1.

Record Nr.

UNINA9910143416203321

Autore

Zhu Yu <1973->

Titolo

Multigrid finite element methods for electromagnetic field modeling / / Yu Zhu, Andreas C. Cangellaris

Pubbl/distr/stampa

Hoboken, New Jersey : , : Wiley-IEEE, , c2006

[Piscataqay, New Jersey] : , : IEEE Xplore, , [2006]

ISBN

1-280-34978-6

9786610349784

0-470-36254-5

0-471-78638-1

0-471-78637-3

Descrizione fisica

1 online resource (438 p.)

Collana

IEEE Press series on electromagnetic wave theory ; ; 28

Altri autori (Persone)

CangellarisAndreas C

Disciplina

530.141

621.38132

Soggetti

Electromagnetic fields - Mathematical models

Multigrid methods (Numerical analysis)

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

List of Figures. -- List of Tables. -- Preface. -- Acknowledgments. -- 1. Introduction. -- 2. Hierarchical Basis Functions for Triangles and Tetrahedra. -- 3. Finite Element Formulations of Electromagnetic BVPs. -- 4. Iterative Methods, Preconditioners, and Multigrid. -- 5. Nested Multigrid Preconditioner. -- 6. Nested Multigrid Vector and Scaler Potential Preconditioner. -- 7. Hierarchical Multilevel and Hybrid Potential Preconditioners. -- 8. Krylov-Subspace Based Eigenvalue Analysis. -- 9. Two-Dimensional Eigenvalue Analysis of Waveguides. -- 10. Three-Dimensional Eigenvalue Analysis of Resonators. -- 11. Model Order Reduction of Electromagnetic Systems. -- 12. Finite Element Analysis of Periodic Structures. -- Appendix A: Identities and Theorems from Vector Calculus. -- Index.

Sommario/riassunto

This is the first comprehensive monograph that features state-of-the-art multigrid methods for enhancing the modeling versatility, numerical robustness, and computational efficiency of one of the most popular classes of numerical electromagnetic field modeling methods: the



method of finite elements. The focus of the publication is the development of robust preconditioners for the iterative solution of electromagnetic field boundary value problems (BVPs) discretized by means of finite methods. Specifically, the authors set forth their own successful attempts to utilize concepts from multigrid and multilevel methods for the effective preconditioning of matrices resulting from the approximation of electromagnetic BVPs using finite methods. Following the authors' careful explanations and step-by-step instruction, readers can duplicate the authors' results and take advantage of today's state-of-the-art multigrid/multilevel preconditioners for finite element-based iterative electromagnetic field solvers. Among the highlights of coverage are: * Application of multigrid, multilevel, and hybrid multigrid/multilevel preconditioners to electromagnetic scattering and radiation problems * Broadband, robust numerical modeling of passive microwave components and circuits * Robust, finite element-based modal analysis of electromagnetic waveguides and cavities * Application of Krylov subspace-based methodologies for reduced-order macromodeling of electromagnetic devices and systems * Finite element modeling of electromagnetic waves in periodic structures The authors provide more than thirty detailed algorithms alongside pseudo-codes to assist readers with practical computer implementation. In addition, each chapter includes an applications section with helpful numerical examples that validate the authors' methodologies and demonstrate their computational efficiency and robustness. This groundbreaking book, with its coverage of an exciting new enabling computer-aided design technology, is an essential reference for computer programmers, designers, and engineers, as well as graduate students in engineering and applied physics.



2.

Record Nr.

UNINA9910809363303321

Autore

Sturmey Peter

Titolo

Evidence-based practice and intellectual disabilities / / edited by Peter Sturmey, Robert Didden

Pubbl/distr/stampa

Chichester, England : , : Wiley-Blackwell, , 2014

©2014

ISBN

1-78684-209-2

1-118-32607-5

0-470-71068-3

1-118-32119-7

Descrizione fisica

1 online resource (317 p.)

Classificazione

PSY007000

Disciplina

362.3/53

Soggetti

People with mental disabilities - Psychology

Evidence-based social work

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references at the end of each chapters and index.

Nota di contenuto

Evidence-Based Practice and Intellectual Disabilities; Copyright; Contents; Contributors; Preface; Acknowledgments; Part I Foundational Issues and Overview; 1 Evidence-Based Practice: An Introduction; Evidence-Based Practice; What Is Evidence-Based Practice?; Some definitions; Rationale; Professional and personal ethics; Economics and efficiency; Methods Used in Evidence-Based Practice; Formulating a research or clinical question; Systematic searches; Meta-analysis; Quality of evidence; Small N experiments: in or out?; Other issues; Application and dissemination

Evidence-Based Practice and Developmental DisabilitiesA Challenge Revisited; References; 2 Adaptive Behavior; General Adaptive Behavior; Early intervention; Early intensive for autism spectrum disorders; Deinstitutionalization; Comment; Specific Adaptive Behaviors; Social skills; Language and communication; Other specific skills and interventions; Summary; References; 3 Maladaptive Behavior; General Challenging Behavior; Summary; Specific Maladaptive Behavior; Self-injurious behavior; Pica; Disruptive behavior; Stereotyped movement



disorder; Pediatric feeding problems; Compliance; Comment

Specific InterventionsSpecific behavioral interventions; Positive behavioral support; Cognitive behavioral therapy; Summary; References; 4 But Is It Worth It?; Intellectual Disabilities Services Are Often Expensive; Reluctance to Address Economic Evaluations; Methodologies to Evaluate Costs and Benefits; Applications; Toilet training; Supported employment; Early intensive behavioral intervention and autism; Behavior management; Reduction of unnecessary psychotropic medication; What Treatments Are Missing?; Summary; References; Part II Specific Disorders and Challenging Behaviors

5 Aggressive BehaviorIntroduction; Definition; Prevalence and Risk Factors; Etiology; Impact; Search Strategies; Definitions; Inclusion criteria; Treatment classification; Criteria for evidence-based treatments; Treatment Review; Behavioral interventions; Cognitive behavioral therapy; Other treatments; Conclusions; Guidelines and Recommendations; References ; 6 Self-Injurious Behavior; Introduction; The Nature of SIB among Individuals with ID; Definition; Common forms of SIB; Prevalence of SIB; Risk factors; Negative impact and financial costs of SIB

Methodology for Identifying Treatment StudiesSearch strategies; Inclusion criteria; Treatment classification; Evidence appraisal; Treatment Review; Applied behavior analysis; Behavior modification; Cognitive behavior therapy; Other treatments; Clinical Guidelines; Functional assessment; Function-based treatment; Use a combination of treatments; Ensuring protocol adherence; Evaluation; Ethical practice; Clinical expertise; Risk assessment; References; 7 Stereotypic Behavior; Overview; Definition; Functions of Stereotypic Behavior; Epidemiology; On the notion of evidence base

The Evidence Base for Treatment of Stereotypy

Sommario/riassunto

Evidence-Based Practice and Intellectual Disabilities responds to the recent increased focus on, and need for, the use of evidence-based practice (EBP) in treating intellectual disabilities. The first book wholly dedicated to addressing EBP specifically in relation to intellectual disabilitiesProvides clinical guidelines based on the strength of evidence of treatments for a given problematic behavioral topography or disorderHighly relevant to a wide-ranging audience, including professionals working in community services, clinicians and parents and carers