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1000 tulosta hakusanalla P.W. Randell

Prestressed Concrete Designer's Handbook

Prestressed Concrete Designer's Handbook

P.W. Abeles; B K Bardhan-Roy

Spon Press
1981
nidottu
The third edition of this authoritative handbook provides the structural designer with comprehensive guidance on prestressed concrete and its effective use, covering materials, behaviour, analysis and design of prestressed elements. It includes numerous examples, design charts and details of post-tensioning systems.
Fast Light, Slow Light and Left-Handed Light

Fast Light, Slow Light and Left-Handed Light

P.W. Milonni

Institute of Physics Publishing
2004
sidottu
The propagation of light in dispersive media is a subject of fundamental as well as practical importance. In recent years attention has focused in particular on how refractive index can vary with frequency in such a way that the group velocities of optical pulses can be much greater or much smaller than the speed of light in vacuum, or in which the refractive index can be negative. Treating these topics at an introductory to intermediate level, Fast Light, Slow Light and Left-Handed Light focuses on the basic theory and describes the significant experimental progress made during the past decade. The book pays considerable attention to the fact that superluminal group velocities are not in conflict with special relativity and to the role of quantum effects in preventing superluminal communication and violations of Einstein causality. It also explores some of the basic physics at the opposite extreme of very slow group velocities as well as stopped and regenerated light, including the concepts of electromagnetically induced transparency and dark-state polaritons. Another very active aspect of the subject discussed concerns the possibility of designing metamaterials in which the refractive index can be negative and propagating light is left-handed in the sense that the phase and group velocities are in opposite directions. The last two chapters are an introduction to some of the basic theory and consequences of negative refractive index, with emphasis on the seminal work carried out since 2000. The possibility that "perfect" lenses can be made from negative-index metamaterials-which has been perhaps the most controversial aspect of the field-is introduced and discussed in some detail.
Building Domestic Liberty

Building Domestic Liberty

P.W. Allen

University of Massachusetts Press
1988
nidottu
Building Domestic Liberty offers a critical and admiring analysis of feminist philosopher Charlotte Perkins Gilman (1860-1935). Polly Allen examines Gilman's approach to architecture, landscape, and neighborhood design and discusses Gilman's case against prevailing household design and looks at her philosophy of world improvement.
Psychedelic Revolutionaries

Psychedelic Revolutionaries

P.W. Barber

University of Regina Press
2018
nidottu
Psychedelic Revolutionaries recounts the history of hallucino­genic-drug research in Saskatchewan, Canada, and the roles played by Humphry Osmond, Abram Hoffer, and Duncan Blewett. They broke new ground in the 1950s and 60s in the use of hallucinogens like mescaline and LSD, the formulation of biochemical hypotheses for schizophrenia, and the development of thera­pies to treat alcoholism--until Timothy Leary hit the scene and undermined everything with his public pronouncements. Delving into the experiments, the researchers, as well as connections to notables like Aldous Huxley, Linus Pauling, and Alcoholics Anonymous Co-Founder Bill W, Psychedelic Revolutionaries examines popularly held myths surrounding the drugs. It shows how the Saskatchewan research made extensive contributions to this scientific field and led to radical innovations in mental health, many of which have applications and relevance today.
Invisible

Invisible

P W Hand

P. W. Hand
2013
pokkari
Several spy novels have been written but none showcase a modern American master spy. This novel is unique because it deals with current world issues concerning control of world resources and hot spots such as Syria, Turkey, Germany, Egypt, Nigeria, Vietnam, and Eastern Europe. The diversity sub-plot sets this story apart from the others and is a key element throughout the novel. The story reflects changing world views, attitudes, and perceptions about modern spies and adversaries.