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Supercritical Wing Sections III (Lecture Notes in Economics and Mathematical Systems #150)
by F. Bauer P. Garabedian D. KornThe purpose of this book is to survey computational flow research on the design and analysis of supercritical wing sections supported by the National Aeronautics and Space Administration at the Energy Research and Development Administration Mathematics and Computing Laboratory of New York University. The work was performed under NASA Grants NGR 33-016-167 and NGR 33-016-201 and ERDA Contract EY-76-C-02-3077. Computer programs to be listed and described have applications in the study of flight of modern aircraft at high sub sonic speeds. One of the codes generates cascades of shockless tran sonic airfoi~s that are expected to increase significantly the effici ency of compressors and turbines. Good simulation of physically observed flows has been achieved. This work is a sequel to two earlier books [1,2] published by Springer-Verlag under similar titles that we shall refer to as Volumes I and II. New York November 1977 TABLE OF CONTENTS I. INTRODUCTION 1 1. Shockless Airfoils and Supercritical Wing Sections 1 2. Differential Equations of Gas Dynamics 2 II. THE METHOD OF COMPLEX CHARACTERISTICS 5 1. A New Boundary Value Problem 5 2. Topology of the Paths of Integration 8 3. Iterative Scheme for the Map Function 9 III. TRANSONIC AIRFOIL DESIGN CODE 10 1. Isolated Airfoils 10 2. Compressor Cascades 12 3. Turbine Cascades 13 4. Comparison with Experiment 14 IV. TWO-DU1ENSIONAL ANALYSIS CODE 16 1. Wave Drag 16 2. A Fast Solver 19 3. Remarks about Three-Dimensional Flow 24 V. REFERENCES 26 VI.
Synergetics: A Workshop Proceedings of the International Workshop on Synergetics at Schloss Elmau, Bavaria, May 2–7, 1977 (Springer Series in Synergetics #2)
by Hermann HakenThis volume contains most of the invited papers presented at the International Work shop on Synergetics, Schloss E1mau, Bavaria, May 2 to.May 7, 1977. This workshop fol lowed an International Symposium on SynergetiGS at Schloss E1mau, 1972, and an Inter national SUl11l1erschoo1 at Erice, Sicily, 1974. Synergetics is a rather new field of interdisciplinary research which studies the self-organized behavior of systems leading to the formation of structures and func tionings. Indeed the whole universe seems to be organized, with pronounced structures starting from spiral galaxies down to living cells. Furthermore, very many of the most interesting phenomena occur in systems which are far from thermal equilibrium. Synergetics in its present form focusses its attention on those phenomena where dra matic changes occur on a macroscopic scale. Here indeed Synergetics was able to re veal profound analogies between systems in different disciplines ranging from physics to sociology. This volume contains contributions from various fields but the reader will easily discover their cOl11J1on goal. Not only in the natural sciences but also in ecology, sociology, and economy, man is confronted with the problems of complex sys tems. The principles and analogies unearthed by Synergetics will certainly be very he1pfu~ to cope with such difficult problems. I use this opportunity to thank the Vo1kswagenwerk Foundation for its support of the project Synergetics and in particular for sponsoring the International Workshop on Synergetics.
Systems thinking: Concepts and notions
by N.J.T.A. Kramer J. de SmitThere is no generally accepted, clearly delineated body of know ledge concerning systems thinking. The multiplicity of thinking is well illustrated by the various names such as: (general) systems theory, systems thinking, systems approach, systems analysis, sys tems synthesis, systems engineering, etc. These terms refer to various fields of knowledge that either overlap or are completely different. For this reason we consider it useful to try to develop a common language, a common set of concepts. In this book we have tried to launch such a common language. We shall try to develop a set of coherent concepts and notions. We have consciously tried to make the minimum use of mathematical or logical symbols in our descriptions and definitions. This promotes more positive access to the concepts. We think that the language of the formal sciences, mathematics, can only be pardy of use to us in considering the application of systems thinking in complex em pirical situations. Our set of concepts is based on various descrip tions known from the literature. In order to explain the concepts and ideas as clearly as possible, we have illustrated them with exam ples from various academic fields such as sociology, psychology, business, management, economics, technology and the natural sciences. In the main, we have chosen relatively simple examples.
Tourism and regional growth: An empirical study of the alternative growth paths for Hawaii (Studies in Applied Regional Science #11)
by M. A. GhaliThe purpose of this study is to analyze the alternative growth paths open to a region under various policies designed to control the growth oftour ism. This is motivated by the current interest of decision-makers in con trolling the growth of tourism. Such interest and any policies which emanate from it may prove detrimental unless a thorough understanding of the consequences of these policies are the foundation upon which the decisions are made. The study consists of four parts, each is written by an author or a group of authors. Thus, while the logical sequence of the parts and the feedbacks among them unify the study, the methodology adopted in each is different, reflecting the diversity and dexterity of forecasting techniques in econo mics. This variety of techniques is desirable in itself as it exposes the reader to some of the alternative approaches. In chapter 1, the theory of regional growth, and in particular the dis tinction between the supply-based and the demand-based models, is dis cussed. The role played by natural resource constraints is shown to be absent from both types of models, and it is argued that this role can be investigated by considering the alternative growth paths available to the region through variations in the rate oftuilization of the resource. To ac complish that, however, a model of regional growth is needed. The empiri cal evidence provided favour a demand-type model. A model of this type is developed and utilized in succeeding parts of the study.
Transport decisions in an age of uncertainty: Proceedings of the third World Conference on Transport Research Rotterdam, 26 – 28 April, 1977
by E. J. VisserProceedings of the 3rd World Conference on Transport Research, Rotterdam, The Netherlands, April 1977
Unternehmungsführung und Unternehmungsziele: Eine Untersuchung des Wissenschaftsprogrammes der betriebswirtschaftlichen Theorie der Unternehmungsführung und des Zusammenhanges von Ziel-Funktions-Hierarchien und Führung
by Werner Hesshaus
Untersuchungen über den Einfluß der Struktur von Warenverteilungsnetzen auf die Distributionskosten (Forschungsberichte des Landes Nordrhein-Westfalen #2668)
by Dieter Kunz
Untersuchungen zur kinetischen Theorie des Verkehrsflusses (Forschungsberichte des Landes Nordrhein-Westfalen #2662)
by Alfred E. Beylich
Useful Work v. Useless Toil (Penguin Great Ideas Ser. #Vol. 3)
by William MorrisVisionary English Socialist and pioneer of the Arts and Crafts movement, William Morris argued that all work should be a source of pride and satisfaction, and that everyone should be entitled to beautiful surroundings – no matter what their class. Throughout history, some books have changed the world. They have transformed the way we see ourselves – and each other. They have inspired debate, dissent, war and revolution. They have enlightened, outraged, provoked and comforted. They have enriched lives – and destroyed them. Now Penguin brings you the works of the great thinkers, pioneers, radicals and visionaries whose ideas shook civilization and helped make us who we are.
Valuation of Shares and the Efficient-markets Theory (Studies in Finance and Accounting)
by Michael Firth
Verkaufsflächeninterne Standortplanung (Schriftenreihe des Seminars für Allgemeine Betriebswirtschaftslehre der Universität Hamburg #9)
by Helmut Dähne
The Visible Hand: The Managerial Revolution in American Business
by Alfred D. Chandler Jr.The role of large-scale business enterprise—big business and its managers—during the formative years of modern capitalism (from the 1850s until the 1920s) is delineated in this pathmarking book. Alfred Chandler, Jr., the distinguished business historian, sets forth the reasons for the dominance of big business in American transportation, communications, and the central sectors of production and distribution.
The Visible Hand: The Managerial Revolution in American Business
by Alfred D. Chandler Jr.The role of large-scale business enterprise—big business and its managers—during the formative years of modern capitalism (from the 1850s until the 1920s) is delineated in this pathmarking book. Alfred Chandler, Jr., the distinguished business historian, sets forth the reasons for the dominance of big business in American transportation, communications, and the central sectors of production and distribution.
