D.W. Fry – författare
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3 produkter
3 produkter
E-bok
PDF, Engelska, 2013344 kr
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Electrical Analogues of Pin-Jointed Systems is a compilation of papers from members of the Rostov-on-Don Civil Engineering Institute and of the Taganrog Radiotechnical Institute, dealing with the statics and dynamics of buildings. This collection addresses the problems encountered in building mechanics. This book also discusses the principles of electrical analogues used in calculating solutions to problems involving static and dynamic structural formations. The different methods of electrical analogues are explained such as solving problems related to the resistance of materials. This text then shows the calculations using the equation of three bi-moments for solid beams with different rigidities, as well as other circuits used to calculate stresses in all parts of a static framework. In particular, the text notes that a circuit is capable of calculating the size of the current flowing in other parts of the system the stress found in the main framework. This book further notes the electrical analogues using four terminal networks and for determining the effects of temperature on structural beams and frameworks. For practical considerations, the text points out the analogue built by the Taganrog Radiotechnical Institute . Of interest is an electrical circuit that mimics a beam being shifted out of line during stress encountered from unwanted motion. When the foundation causes shifting of the pillars of a structure, the text explains how the degree of deflection can be calculated by using a formula relevant to electrical analogue use. This collection of articles will prove useful to structural engineers, researchers in structural mechanics, and scientists involved in dynamics and physics.
E-bok
PDF, Engelska, 2013979 kr
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The Theory and Practice of Scintillation Counting is a comprehensive account of the theory and practice of scintillation counting. This text covers the study of the scintillation process, which is concerned with the interactions of radiation and matter; the design of the scintillation counter; and the wide range of applications of scintillation counters in pure and applied science. The book is easy to read despite the complex nature of the subject it attempts to discuss. It is organized such that the first five chapters illustrate the fundamental concepts of scintillation counting. Chapters 6 to 10 detail the properties and applications of organic scintillators, while the next four chapters discuss inorganic scintillators. The last two chapters provide a review of some outstanding problems and a postscript. Nuclear physicists, radiation technologists, and postgraduate students of nuclear physics will find the book a good reference material.
E-bok
PDF, Engelska, 2014756 kr
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Topics in Engineering Logic contains the lectures given at the Indian Statistical Institute in Calcutta, India, during the Spring of 1959. The lectures focus on a variety of topics related to engineering logic, including the use of the logical matrix as an auxiliary to the construction of various types of codes. Elementary logical circuits for synchronous systems are also considered, with emphasis on "two-wire" systems based on static flip-flops and having various phase structures. Comprised of seven chapters, this volume begins with an introduction to the logical matrix, a form of representation of logical functions that permits rapid and clear solution of varied problems in logical design. The discussion then turns to elementary logical circuits for synchronous systems and their physical properties, with particular reference to contacts, diodes, and transistors as well as phase structures and diode-gated flip-flops for single-phase and two-phase applications. Subsequent chapters deal with a graphical approach based on the logical matrix as a method for reducing the canonic form to the two-level minimal form; codes and matrices; operational circuits; and the question of increasing reliability through structural redundance. The book concludes with several typical logical design problems, including a drum-indexing circuit and a series-parallel decimal multiplier. This monograph will be of interest to engineers.