This book is about aerospace sensors, their principles of operation, and their typical advantages, shortcomings, and vulnerabilities. They are described in the framework of the subsystems where they function and in accordance with the flight mission they are designed to serve. The book is intended for students at the advanced undergraduate or graduate level and for research engineers who need to acquire this kind of knowledge. An effort has been made to explain, within a uniform framework of mathematical modeling, the physics upon which a certain sensor concept is based, its construction, its dynamics, and its error sources and their corresponding mathematical models. Equipped with such knowledge and understanding, the student or research engineer should be able to get involved in research and development activities of guidance, control, and navigation systems and to contribute to the initiation of novel ideas in the aerospace sensor field. As a designer and systems engineer, he should be able to correctly interpret the various items in a technical data list and thus to interact intelligently with manufacturers' representatives and other members of an R&D team. Much of the text has evolved from undergraduate and graduate courses given by the author during the past seventeen years at the Department of Aerospace Engineering at the Technion- Israel Institute of Technology and from his earlier research and development experience in flight control, guidance, navigation, and avionics at the Ministry of Defense Central Research Institute.

Australie, 1901 : Miles Franklin, vingt ans, fille de fermiers du bush, parvient contre vents et marées à faire publier son premier roman, un texte remarquable d'insolence et de fougue, qui connaît un immense succès dans le monde anglo-saxon.

Give, and it shall be given unto you. ST. LUKE, VI, 38. The book is based on several courses of lectures on control theory and appli­ cations which were delivered by the authors for a number of years at Moscow Electronics and Mathematics University. The book, originally written in Rus­ sian, was first published by Vysshaya Shkola (Higher School) Publishing House in Moscow in 1989. In preparing a new edition of the book we planned to make only minor changes in the text. However, we soon realized that we like many scholars working in control theory had learned many new things and had had many new insights into control theory and its applications since the book was first published. Therefore, we rewrote the book especially for the English edition. So, this is substantially a new book with many new topics. The book consists of an introduction and four parts. Part One deals with the fundamentals of modern stability theory: general results concerning stability and instability, sufficient conditions for the stability of linear systems, methods for determining the stability or instability of systems of various type, theorems on stability under random disturbances.

This book is designed to complement the two volumes Electrical and Electronic Principles 1 and 2. Due to the graded nature of the assignment questions, many of them are quite demanding, and will therefore also be found of use for Higher National, first-year undergraduate studies in electrical engineering, and associated bridging courses. Of necessity, the assignment questions at the end of each chapter of most textbooks tend to concentrate solely on the topic covered by the relevant chapter. However, this tends to fragment the subject matter. Consequently the student, once tested, tends to 'forget' about earlier topics and concentrates solely on the current topic of study. This effect is compounded by the current system of phase tests and assignments in preference to a comprehensive end test on completion of the unit of study. The objective of this book is to present more realistic engineering problems. In many cases this means that the student has to utilise knowledge gained over a range of topics in order to arrive at a solution. This will help the student to view the unite s) as a cohesive whole, rather than isolated pockets of knowledge. In order to enhance the integrative aspect, some exercises include topics from the BTEC Electronics syllabuses together with some elements from the Electrical Applications. The subject matter of this last unit has considerable overlap with that of Electrical and Electronic Principles.

Although asynchronous circuits date back to the early 1950s most of the digital circuits in use today are synchronous because, traditionally, asynchronous circuits have been viewed as difficult to understand and design. In recent years, however, there has been a great surge of interest in asynchronous circuits, largely through the development of new asynchronous design methodologies.

Dix-huit mois après un drame, une femme revient dans la maison familiale. Là où les souvenirs se heurtent au silence. Roman intime et bouleversant, hymne à la rage de vivre, Refaire l’amour est un texte magnétique sur la puissance de l’amour et la force de la résilience.