1.

Record Nr.

UNINA9911019190303321

Autore

Ireson Gren

Titolo

Discovering superconductivity : an investigative approach / / Gren Ireson

Pubbl/distr/stampa

Chichester, West Sussex, : Wiley, 2012

ISBN

9781283645089

1283645084

9781118343180

1118343182

9781118343210

1118343212

9781118343197

1118343190

Descrizione fisica

1 online resource (187 p.)

Classificazione

TEC039000

Disciplina

537.6/23076

537.623076

621.35

Soggetti

Superconductivity - Study and teaching (Higher) - Activity programs

Superconductors

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

Discovering Superconductivity; Contents; List of Figures; List of Tables; Preface; Acknowledgements; To the Teacher; To the Student; SECTION I Introduction; 1 Resistivity and Conduction in Metals; 1.1 Introduction; 1.2 Resistivity; 1.3 Conduction in Metals; 1.4 Revisiting Ohm's Law; References; 2 A Brief History of Superconductivity; 2.1 Introduction; 2.2 The Beginning: Kwik Nagenoeg Nul; 2.3 1933 - Perfect Diamagnetism?; 2.4 The London Brothers; 2.5 1957 - The BCS Theory; 2.6 1962 - The Josephson Effect; 2.7 1986 - Bednorz and Mùˆller and Oxide Superconductors

2.8 2003 - Abrikosov, Ginzburg and Leggett - and the Future2.9 Getting Cold Enough; References; SECTION II Superconductivity; 3 An Explanation of Superconductivity?; 3.1 Transition Temperature; 3.2



Two-Fluid Model; 3.3 Critical Field, Critical Current; 3.4 Schawlow and Devlin; 3.5 The London Equation; 3.6 BCS Theory; 3.6.1 The Isotope Effect; 3.6.2 The Energy Gap; 3.7 An Alternative Approach to the Energy Gap; 3.7.1 Electron-Electron Attraction; References; 4 The Meissner-Ochsenfeld Effect; References; 5 Diamagnetic Effects; 5.1 Diamagnetism, Paramagnetism and Ferromagnetism; References

6 Persistence of Current6.1 Quinn and Ittner; References; 7 Type I and Type II Superconductors; 7.1 Critical Magnetic Field; References; 8 Flux Pinning; 8.1 Vortex and Flux Lines; 8.2 The Original Abrikosov; References; SECTION III Superconducting Materials; 9 Low-Temperature Superconductors; 10 Organic Superconductors; References; 11 High-Temperature Superconductors; 11.1 Magnesium Diboride; 11.2 Transition Temperature of High-Tc Superconductors; References; SECTION IV Applications; 12 Superconducting Wire; 13 Medical Imaging; 13.1 Magnetic Resonance Imaging (MRI)

13.2 Magnetoencephalography13.2.1 The Josephson Junction Revisited; 13.2.2 Neuronal Currents; References; 14 CERN and the LHC; References; 15 Maglev Trains; Appendices; A The BCS Theory; B Flux Penetration; C The Josephson Junction and the SQUID; D MRI; Generating the MRI Signal; References; E A Note on Superfluidity; F A Note on Safety; Index

Sommario/riassunto

Superconductivity is a quantum phenomenon that manifests itself in materials showing zero electrical resistance below a characteristic temperature resulting in the potential for an electric current to run continually through such a material without the need for a power source. Such materials are used extensively in medical and power applications, e.g. MRI and NMR machines.   Discovering Superconductivity uses a series of practical and investigative activities, which can be used as tutor demonst



2.

Record Nr.

UNINA9910964890103321

Autore

Roy Tirthankar

Titolo

Rethinking economic change in India : labour and livelihood / / Tirthankar Roy

Pubbl/distr/stampa

London, : Routledge, 2005

ISBN

1-134-27065-8

1-134-27066-6

1-280-30255-0

9786610302550

0-203-02310-2

Edizione

[1st ed.]

Descrizione fisica

1 online resource (194 p.)

Collana

Routledge explorations in economic history ; ; 28

Disciplina

331.0954

Soggetti

Labor - India - History

Women - Employment - India - History

India Economic policy

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

Book Cover; Half-Title; Title; Copyright; Dedication; Contents; List of Figures; List of Tables; Preface; 1. Introduction; 2. Economic History and Modern India: Redifining the Link; 3. Rural Labour and Colonialism; 4. Agricultural Labour: Lessons from Wage Data; 5. Was there an Industrial Decline in India in the Early Nineteenth Century?; 6. Labour-intensive Industrialization; 7. Women and Industrialization; 8. Women in the Crafts; 9. Labour and Power: A Critique of 'Subaltern Studies'; 10. Conclusion; Notes; References; Index

Sommario/riassunto

As author of the hugely influential The Economic History of India 1857-1947, Tirthankar Roy has established himself as the leading contemporary economic historian of India. Here, Roy turns his attention to labour and livelihood and the nature of economic change in the Subcontinent. This book covers:economic history of modern India rural labour labour-intensive industrialization women and industrialization.Challenging the prevailing wisdom on Indian economic growth - that it is bound up with Marxian, postcolo