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1. |
Record Nr. |
UNINA9911018932503321 |
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Autore |
Gupta M (Manoj) |
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Titolo |
Microwaves and metals / / Manoj Gupta and Wong Wai Leong, Eugene |
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Pubbl/distr/stampa |
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Singapore ; ; Hoboken, NJ, : John Wiley & Sons, c2007 |
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ISBN |
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9786612371363 |
9781282371361 |
1282371363 |
9780470822746 |
0470822740 |
9780470822739 |
0470822732 |
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Descrizione fisica |
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1 online resource (242 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Microwave devices - Industrial applications |
Metals - Effect of radiation on |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Microwaves and Metals; Preface; Acknowledgments; Introduction to Microwaves; 1.1 Microwaves and Electromagnetic Radiation; 1.2 Development of Microwaves; 1.3 Applications of Microwaves; 1.3.1 Microwave Heating/Processing of Materials; 1.3.2 Communications; 1.3.3 Radio Detection and Ranging (Radar); 1.3.4 Electronic Warfare; 1.3.5 Medical Applications; 1.3.6 Scientific Applications; 1.3.7 Industrial and Commercial Applications; 1.3.8 Potential Applications; 1.4 Frequency Allocation; 1.5 Microwave Generators; 1.6 Summary; References; Microwaves - Theory; 2.1 Introduction; 2.2 Fundamentals |
2.2.1 Maxwell's Equations2.2.2 Permittivity; 2.2.3 Permeability; 2.2.4 Power Dissipated; 2.2.5 Penetration Depth; 2.2.6 Rate of Increase in Temperature; 2.3 Microwave-Material Interactions; 2.3.1 Electronic Polarization; 2.3.2 Orientation or Dipolar Polarization; 2.3.3 Ionic or Atomic Polarization; 2.3.4 Interfacial (Maxwell-Wagner) Polarization; 2.3.5 Frequency Dependence of Polarization Mechanisms; 2.3.6 Conduction Losses; 2.3.7 Hysteresis Losses; 2.4 Summary; References; Microwave Heating; 3.1 Development of Microwave Heating; 3.2 |
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Characteristics of Microwave Heating |
3.2.1 Penetrating Radiation3.2.2 Rapid Heating; 3.2.3 Controllable Field Distributions; 3.2.4 Selective Heating of Materials; 3.2.5 Self-limiting Characteristic; 3.2.6 Microwave Effects; 3.3 Types of Microwave Heating; 3.4 Future Developments; 3.5 Summary; References; Microwave Heating of Metal-Based Materials; 4.1 Microwaves and Metals; 4.2 Observations and Theories-Mechanisms Proposed for Microwave Heating of Metals; 4.2.1 Size and Morphology of Starting Materials; 4.2.2 Effect of Separate Electric and Magnetic Fields; 4.2.3 Sintering Behavior and Mechanisms |
4.2.4 Proposed Microwave Sintering Model by Luo et al.4.2.5 Proposed Microwave Sintering Model by Rybakov et al.; 4.2.6 Model for Microwave Heating of Metal Compacts; 4.3 Microwave Sintering of Metals; 4.3.1 Cermets; 4.3.2 Ferrous Alloys; 4.3.3 Copper Alloys; 4.3.4 Aluminum and Composites; 4.3.5 Magnesium and Composites; 4.3.5.1 Microwave Sintering of Magnesium Composites; 4.3.5.2 Effect of Microwave Heating Rate on Properties of Pure Magnesium; 4.3.6 Tungsten Alloys; 4.3.6.1 Effect of Particle Size Distribution and Phases on Densification |
4.3.6.2 Effect of Sintering Atmosphere on Densification4.3.6.3 Effect of Aspect Ratio of Samples on Densification; 4.3.6.4 Comparison of Sintering Methods on Densification; 4.3.6.5 Microwave Sintering of Nanocrystalline Tungsten Powders; 4.3.7 Tin-Based Alloys (Electronic Solders); 4.3.8 Hybrid Composites; 4.3.9 Layered Composites; 4.4 Other Applications for Microwave Processing of Metals; 4.4.1 Microwave Melting; 4.4.2 Microwave Steel-making; 4.4.3 Heat Treatment and Annealing; 4.4.4 Diffusion Coating; 4.4.4.1 Microwaves and Aluminization; 4.4.4.2 Microwaves and Chromization |
4.4.4.3 Microwaves and Boronization |
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Sommario/riassunto |
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Using microwaves to treat metal-based materials is rapidly emerging as an energy-efficient tool to interact with metals for a number of processes such as sintering, melting, brazing, carburizing and annealing. Microwaves can sinter a wide variety of metal compacts with comparable or enhanced end properties, while at the same time delivering tremendous energy savings over conventional sintering. Microwave processes are therefore gaining increasing attention and adoption in both academia and industry. Gupta and Wong have written this comprehensive text to introduce readers to the world of micr |
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2. |
Record Nr. |
UNINA9910220157503321 |
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Titolo |
Dilemmas of intervention : social science for stabilization and reconstruction / / edited by Paul K. Davis ; contributors, Claude Berrebi ... [et al.] |
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Pubbl/distr/stampa |
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Santa Monica, Calif., : RAND, 2011 |
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ISBN |
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1-283-59735-7 |
9786613909800 |
0-8330-5257-8 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (384 p.) |
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Altri autori (Persone) |
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DavisPaul K. <1943-> |
BerrebiClaude |
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Disciplina |
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Soggetti |
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Nation-building |
Peace-building |
Postwar reconstruction |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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"Prepared for the Office of the Secretary of Defense. Approved for public release; distribution unlimited." |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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Introduction -- Objectives and scope -- Approach -- Establishing favorable security conditions -- An integrating conceptual model -- Measuring the constructs of the security model -- Establishing favorable political conditions -- General observations -- Political dilemmas -- Establishing favorable social conditions -- Initial observations -- Prescriptions for trust-building -- Establishing favorable economic conditions -- Why post-conflict economics is different -- Economic practices for the post-conflict situation -- Special issues of foreign aid -- Analytic observations -- Conclusions and suggestions for future research. |
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Sommario/riassunto |
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Governments intervening in post-conflict states find themselves beset with numerous challenges and profound dilemmas: It is often unclear how best to proceed because measures that may improve conditions in one respect may undermine them in another. This volume reviews and integrates the scholarly social-science literature relevant to stabilization and reconstruction, with the goal of informing strategic |
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planning at the whole-of-government level. |
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