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Principles of Structural Stability
FirstEdition DUE TO THE necessity to save weight and materialin the design ofmodern structures and machines, stability problems have become increasingly im portant. The classicalengineering approach to this type of problem has been characterized by the tacit assumption that structures are nongyroscopic conservative systems, that is, bythegeneraladoptionofthemethodsdeveloped for this particular case. During the last decades numerous stability problems of a more complicated nature have become important, and it has therefore become necessary to correlate the various types of problems with the ap proaches to be used in their solution. The principal object ofthis little bookisthis correlation bet...
Encounter with Chaos
Our life is a highly nonlinear process. It starts with birth and ends with death; in between there are a lot of ups and downs. Quite often, we believe that stable and steady situations, probably easy to capture by linearization, are paradisiacal, but already after a short period of everyday routine we usually become bored and seek change, that is, nonlinearities. If we reflect for a while, we notice that our life and our perceptions are mainly determined by nonlinear phenomena, for example, events occurring suddenly and unexpectedly. One may be surprised by how long scientists tried to explain our world by models based on a linear ansatz. Due to the lack of typical nonlinear patterns, althou...
Element Concentrations Toxic to Plants, Animals, and Man
Investigators have long recognized the importance of certain elements, commonly called "minerals," in the diet of humans and animals and in the soil that supports plants, in that these elements are essential for the life or optimum health of the organisms. Deficiencies of 20 to 24 elements in animals and man and of 13 to 18 elements in plants have been recognized. At the same time, an understanding of the responses of these organisms to the insult of toxic concentrations of these and other elements also has been of interest. More recently, concern has arisen regarding the effects of an organism's exposure to the more subtle chronic and subchronic concentrations of certain elements that industrial and other human activities are releasing into the environment.
Computer-Aided Analysis of Rigid and Flexible Mechanical Systems
This book contains the edited version of the lectures presented at the NATO ADVANCED STUDY INSTITUTE on "COMPUTER AIDED ANALYSIS OF RIGID AND FLEXIBLE MECHANICAL SYSTEMS". held in Troia. Portugal. from the 27 June to 9 July. 1993. and organized by the Instituto de Engenharia Mecanica. Instituto Superior Tecnico. This ASI addressed the state-of-art in the field of multibody dynamics. which is now a well developed subject with a great variety of formalisms. methods and principles. Ninety five participants. from twenty countries. representing academia. industry. government and research institutions attended this Institute. This contributed greatly to the success of the Institute since it encour...
Computational Methods in Mechanical Systems
The chapters of this book summarize the lectures delivered du ring the NATO Advanced Study Institute (ASI) on Computational Methods in Mechanisms, that took place in the Sts. Constantin and Elena Resort, near Varna, on the Bulgarian Coast of the Black Sea, June 16-28, 1997. The purpose of the ASI was to bring together leading researchers in the area of mechanical systems at large, with special emphasis in the computational issues around their analysis, synthesis, and optimization, during two weeks of lectures and discussion. A total of 89 participants from 23 count ries played an active role during the lectures and sessions of contributed papers. Many of the latter are being currently review...
Martin Bucer Briefwechsel/Correspondance: Band IX (September 1532 - Juni 1533)
Wegen des großen Anteils an Einzelkorrespondenten in Bucers Briefwechsel von September 1532 bis Juni 1533 versammelt dieser Band eine Vielzahl von Anliegen. Bucer soll etwa bei Stellenbesetzungen vermitteln, für säumige Schuldner eintreten, seine exegetischen Werke zusenden, einen Trostbrief schreiben, zur Visitation kommen, mittellosen Autoren zum Druck ihrer Bücher verhelfen oder schlicht Fürbitte einlegen. Trotz dieser vielfältigen Inanspruchnahmen verliert Bucer die Hauptthemen der vorausgehenden Korrespondenz nicht aus den Augen: die Auseinandersetzung mit den Dissenters und die Vermittlung im Abendmahlsstreit. Nachdem sein Werben um eine Verständigung mit Luther bei den Schweizern Irritationen hervorgerufen hat, bereist Bucer von Anfang April bis Mitte/Ende Mai 1533 die Schweiz, um im persönlichen Gespräch mit den Baslern, Zürichern und Bernern die Wogen zu glätten. Wenn er sie auch nicht davon überzeugen kann, dass sie in der Sache mit Luther übereinstimmen, so gelingt es Bucer doch, ein Einvernehmen der Schweizer mit seiner Position herzustellen.
Martin Bucer Briefwechsel/Correspondance: Band X (Juli 1533 – Dezember 1533)
Anders als im Briefwechsel des ersten Halbjahres 1533 begegnen nun internationale Perspektiven: Der Konzilsinitiative Karls V. begegnet Bucer wegen der vom Papst gestellten Vorbedingungen skeptisch. Er verfasst aber eine Fürbereytung zum Concilio, die zusammen mit Desiderius Erasmus’ entsprechenden Schriften den Weg zur Einheit weisen soll. Im Blick auf die Schweiz hat Bucers Reise (April bis Mai 1533) die Beziehungen gefestigt, und die Korrespondenz aus den besuchten Orten wächst an. Auch an den Ereignissen im Reich nimmt Bucer regen Anteil: Sein Interesse gilt der Lage Konstanz’ im Zinsstreit mit dem Bischof. Ulm sucht einen Nachfolger fur den verstorbenen Prediger Konrad Sam; Bucer ...
