1.

Record Nr.

UNISALENTO991003242609707536

Autore

Farshad, Mehdi

Titolo

Plastic pipe systems [e-book] : failure investigation and diagnosis / Mehdi Farshad

Pubbl/distr/stampa

Amsterdam ; Boston ; London : Elsevier, 2006

ISBN

9781856174961

1856174964

Descrizione fisica

xii, 205 p. : ill. (some col.) ; 24 cm

Disciplina

621.8672

Soggetti

Pipeline failures

Pipe, Plastic

Fault location (Engineering)

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Risorsa elettronica

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references (p. [196]-199) and index

Nota di contenuto

1. Plastic pipes 2. Fracture of Pipes 3. Buckling failure 4. Dimensional & Colour changes 5. Blisters and Delamination 6. Stress corrosion 7. Abrasion 8. Obstruction 9. Glossary 10. Bibliography

Sommario/riassunto

Industrial and domestic piping is increasingly made from various plastics and composites, and these materials withstand heavy use over long periods. They are, however, affected by environmental and other factors over time and can degrade, causing major problems within piping systems. Farshad's book deals with why plastic pipes and systems fail, and with how to investigate and diagnose such failures. Pipes may buckle, fracture, change in dimensions and colour, blister and delaminate, corrode through stress, be abraded and obstructed: all these cause problems and lead to loss of efficient operation of a system. The author's experience is backed up by a large data-base of results * Wide target audience * The only book covering the whole subject * Unique approach based on long experience



2.

Record Nr.

UNINA9910830858403321

Titolo

Soil science : step-by-step field analysis / / Sally Logsdon [and three others], editors

Pubbl/distr/stampa

Madison, Wisconsin : , : Soil Science Society of America, , 2008

ISBN

0-89118-856-8

Descrizione fisica

1 online resource (iv, 251 pages)

Disciplina

631.4

Soggetti

Soil science

Soils - Testing

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

3.

Record Nr.

UNINA9910975314903321

Autore

Khachidze Tamar T

Titolo

Dynamical symmetry of the Kepler-Coulomb problem in classical and quantum mechanics : non-relativistic and relativistic / / Tamar T. Khachidze and Anzor A. Khelashvili

Pubbl/distr/stampa

New York, : Nova Science Publishers, c2008

ISBN

1-61324-498-3

Edizione

[1st ed.]

Descrizione fisica

1 online resource (168 p.)

Altri autori (Persone)

KhelashviliA. A

Disciplina

539.7/25

Soggetti

Symmetry (Physics)

Mechanics

Quantum theory

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 (p. [129]-143) and index.

Nota di contenuto

Intro -- DYNAMICAL SYMMETRY OF THEKEPLER-COULOMB PROBLEM INCLASSICAL AND QUANTUMMECHANICS: NON-RELATIVISTICAND



RELATIVISTIC -- CONTENTS -- ABOUT THE AUTHORS -- PREFACE -- INTRODUCTION -- THE GENERAL CONCEPTS OF DYNAMICAL SYMMETRIES -- REFERENCES -- HIDDEN (DYNAMICAL) SYMMETRIES IN CLASSICALMECHANICS -- I.1. CONSTANTS OF MOTION AS GENERATORS OF INFINITESIMALTRANSFORMATIONS -- Remark -- I.2. DERIVATION OF LRL VECTOR -- I.3. APPLICATIONS OF LRL VECTOR IN CLASSICAL PHYSICS -- (I) LRL Vector and the Orbit Equation -- (II). Algebraic Aspects of the Kepler Problem -- I.4. DYNAMICAL SYMMETRY FOR THE ISOTROPICHARMONIC OSCILLATOR -- I.5. POSSIBLE GENERALIZATIONS OF DYNAMICAL SYMMETRIES -- Comments -- I.6. APPLICATION OF THE DYNAMICAL EVOLUTION OF LRLVECTOR IN GENERAL CENTRAL CASE [12] -- Equations of Motion for General Central Forces -- Equations of Motion for Arbitrary Forces -- Summary Comments on Dynamical Symmetries in Classical(Non-Relativistic) Mechanics -- REFERENCES -- HIDDEN SYMMETRY IN CLASSICAL RELATIVISTICMECHANICS -- II.1. AUXILIARY PROBLEM: LRL VECTOR FOR A MODIFIEDKEPLER PROBLEM -- II.2. THE LAPLACE-RUNGE-LENZ VECTOR AND THE LORENTZBOOST -- II.3. POST-NEWTONIAN EXTENSIONS OF THE LRL VECTOR -- II.4. RELATIVISTIC KEPLER PROBLEM -- REFERENCES -- DYNAMICAL SYMMETRIES IN NON-RELATIVISTICQUANTUM MECHANICS -- III.1. THE HYDROGEN ATOM (GENERAL CONSIDERATION) -- Algebraic Aspects of the Hydrogen Problem [2] -- III.2. THE HYDROGEN ATOM IN THE MOMENTUM -- Representation -- Example of Application of The Momentum Representation:Dynamical Symmetry of a Three Dimensional Wick-Cutkosky Problem [7] -- III. 3. THE HYDROGEN ATOM AND THE LORENTZ GROUP -- III. 4. THREE DIMENSIONAL ISOTROPIC HARMONIC OSCILLATORAND SU(3) [14] -- REFERENCES -- A NEW KIND OF DYNAMICAL SYMMETRY -SUPERSYMMETRY -- IV.1 SUPERSYMMETRIC QUANTUM MECHANICS.

IV.2. SUPERSYMMETRY AND THE RADIAL PROBLEM -- IV. 3. EXACT SUPERSYMMETRY IN THE NON-RELATIVISTICHYDROGEN ATOM -- REFERENCES -- RELATIVISTIC QUANTUM MECHANICS -- V.1. SUPERSYMMETRY IN THE DIRAC EQUATION FOR THECOULOMB POTENTIAL -- APPENDIX: SHAPE INVARIANCE (SI) -- V. 2. AN "ACCIDENTAL SYMMETRY" OPERATORFOR THE DIRAC EQUATION IN THE COULOMB POTENTIAL -FROM PAULI TO DIRAC -- V. 3. PHYSICAL MEANING AND SOME APPLICATIONSOF JOHNSON - LIPPMANN OPERATOR -- APPENDIX: CALCULATION OF RELEVANT COMMUTATORS -- REFERENCES -- GENERALIZATIONS TO THE RELATIVISTIC DIRACHAMILTONIAN -- VI.1. SUPERSYMMETRY OF THE DIRAC HAMILTONIANFOR GENERAL CENTRAL POTENTIALS -- VI.2. WHERE IS THE HARMONIC OSCILLATOR? -- VI.3. RELATIVISTIC QUANTUM MECHANICSOF DIRAC OSCILLATOR -- VI.4. THE LORENTZ - SCALAR POTENTIALIN THE DIRAC EQUATION -- VI.5. ALGEBRAIC DERIVATION OF THE SPECTRUM OF THEDIRAC HAMILTONIAN FOR AN ARBITRARY COMBINATIONOF THE LORENTZ-SCALAR AND LORENTZ-VECTOR COULOMBPOTENTIAL -- Comments -- REFERENCES -- SOME RECENT DEVELOPMENTS -- VII.1 HIDDEN SUPERSYMMETRY OF THE DIRAC-COULOMBPROBLEM AND THE BIEDENHARN APPOACH -- VII.2 SOME PRACTICAL GENERALIZATIONS: THE LRL VECTOR INTHE PRESENCE OF AN ELECTRIC FIELD [9] -- CONCLUSIONS -- REFERENCES -- BIBLIOGRAPHY (PART I) -- PART II -- INDEX.

Sommario/riassunto

The purpose of this book is to develop a systematic theory for the hidden symmetry generators, which are simultaneously the odd generators of superalgebra in relativistic quantum mechanics. It is devoted to the description of so-called hidden symmetry of the Kepler problem in classical and quantum mechanics.