Ram Accelerators

Ram Accelerators
Author: Kazuyoshi Takayama
Publisher: Springer
Total Pages: 0
Release: 2012-03-29
Genre: Science
ISBN: 9783642468780

Ram accelerators are among the most advanced tools for generating fluid dynamcis data in supersonic reacting systems. They require the combined action of combustion, wave systems and turbulence and are still a serious challenge for physicists and engineers. This book will serve as an introductionary textbook on ram accelerators and gives a thorough overview on research activities, performance modeling and high-pressure detonation dynamics.

Human Spaceflight Operations

Human Spaceflight Operations
Author: Gregory Errol Chamitoff
Publisher: American Institute of Aeronautics and Astronautics Incorporated
Total Pages: 0
Release: 2021
Genre: Manned space flight
ISBN: 9781624103995

The purpose of this book is to share collective experience on human spaceflight operations. For the many authors, this is nothing less than a work of passion. They are sharing their life's work with the goal of passing on their experience to the next generation of space engineers, designers, operators, and crew.

Circuit Analysis

Circuit Analysis
Author: Leonard J. Tung
Publisher: World Scientific
Total Pages: 276
Release: 2001
Genre: Technology & Engineering
ISBN: 9789810240516

This volume is intended as a textbook for a first course in electrical engineering. It is divided into two parts, for a two-semester coverage. The first part deals with circuit elements, resistive circuits, circuit theorems, circuit topology, and the state-variable method. The presentation of the state-variable method is a special feature. The authors believe that the natural way to analyze RLC circuits is to use the state-variable method rather than second- or high-order ordinary differential equations. By choosing capacitor voltages and inductor currents in an RLC circuit as state variables, the so-called state equations can by systematically obtained through network topology. Of particular interest is the approach employing Thevenin's theorem and Norton's theorem to find state equations without using circuit topology. The second part of the book covers sinusoidal stead-state analysis, two-port networks, the Fourier series, the Fourier transform, and the Laplace transform. Great effort has been devoted to presenting the subjects of the Fourier series, the Fourier transform, and the Laplace transform with many practical circuits. Thus, we hope that the reader will be better motivated to learn rather abstract concepts such as complex frequency and frequency response.

Inside the Space Ships

Inside the Space Ships
Author: George Adamski
Publisher: Pickle Partners Publishing
Total Pages: 274
Release: 2018-03-12
Genre: Fiction
ISBN: 178912090X

What has happened to George Adamski since he wrote the famous incidents in Flying Saucers Have Landed? Since the memorable November 20, 1952, when he first made personal contact with a man from another world? Since December 13, 1952 when he was able to make photographs within 100 feet of the same saucer that had brought his original visitor? Inside The Space Ships is Adamski’s own story of what has happened to him since then. It begins with his first meeting, a few months later, with a second man from another world—his first meeting with one who speaks to him. This second visitor brings him to a Venusian Scout (flying saucer) and this, in turn, brings him to a mother ship. Later lie is conveyed in both a Saturnian Scout and a Saturnian mother ship. Adamski tells us what transpires in these space craft and what the men and women from other worlds have told him. Adamski’s photographs of flying saucers, originally published in Flying Saucers Have Landed, have since become world-famous as other witnesses in other parts of the world have succeeded in taking photographs identical with his. Now, however, in Inside The Space Ships, Adamski gives us 16 photographs and illustrations, no longer of Scouts (flying saucers) mostly, but of the great space ships from which they are launched. The main group of these photographs was taken in April, 1955, and neither the photographs nor a description of them has ever been published before.

NAA-SR.

NAA-SR.
Author: U.S. Atomic Energy Commission
Publisher:
Total Pages: 216
Release: 1958
Genre: Radiochemistry
ISBN:

Rigby Literacy

Rigby Literacy
Author:
Publisher: Rigby
Total Pages: 28
Release: 2000
Genre: Education
ISBN: 9780763566777

Lauren shows her mom she is ready for the responsibility of taking care of a real dog by pretending her shoe is a dog. Her mom becomes convinced by Lauren's hard work and gives her a dog.