Universität Stuttgart
Permanent URI for this communityhttps://elib.uni-stuttgart.de/handle/11682/1
Browse
156 results
Search Results
Item Open Access Practical methods and tools for specification(1987) Ludewig, JochenThis is a course on specification. Since it is based on experiences in the field of software engineering. It applies primarily to software specifications. Many observations and reports indicate, however, that, from specification aspects, there is not much difference between information processing systems in general and software in particular. Therefore, most of this course applies also to system specification. In the first chapter, some fundamentals are discussed. These include the life cycle model and the distribution of costs over the various activities, some definitions, and a rationale for semi-formal specification. The second chapter provides a general outline of a specification system, whose desirable properties are deduced from the qualities of good specifications. In the third chapter, we present some typical specification systems. The primary goal is to show some typical features of such systems rather than to describe them in detail. The fourth chapter addresses management aspects. In chapter 5, some general conclusions are drawn. The appendix (chapter 6) contains a bibliography on specification, and a list of suppliers.Item Open Access Die Ermittlung von Steuerprofilen zur Insulinabgabe mit programmierbaren Insulininfusionssystemen(1981) Schulz, Gerhard; Beyer, Jürgen; Nagel, Joachim H.; Strack, Thomas; Krause, Ulrich; Hassinger, Wieland; Cordes, UweDer Insulinverbrauch und die Form der Insulinabgabeprofile bei intravenöser Insulintherapie mit nicht rückgekoppelten Infusionsgeräten wurde bisher nur rein empirisch ermittelt. Dabei war die Form der Insulinabgabeprofile nicht zuletzt auch von den technischen Möglichkeiten des Dosiergerätes abhängig. Unser Ziel war es, Grundsätze für die Blutzuckerführung mit Open-Loop-Systemen zu entwickeln. Die Insulinprofile sollten dem Blutzuckeranstieg und Abfall nach den Mahlzeiten möglichst gut angepaßt sein und individuell programmiert werden können, so daß der Patient zu den Mahlzeiten das entsprechende Programm abrufen kann.Item Open Access Quantitative evaluation of clogging phenomena in river beds(1982) Geldner, Peter; Kobus, HelmutClogging phenomena in rivers are of extremely complex nature, and a development of a clogging layer depends on a large variety of influences. In this paper a quantitative approach for the evaluation of a defined hydrodynamic clogging parameter is presented. This approach is based on the inverse use of type curves representing characteristics of the interaction between surface water bodies and the aquifer. The method is applied to field data of discharge measured in seepage ditches at levee protected sites. Since conventional approaches are limited to the assumption of quasi-steady-state flow, a stochastic method for the evaluation of time-variable hydrographs is also outlined.Item Open Access Excited electronic states of flavin-containing coenzyme models(1988) Gückel, Friedemann; Schweitzer, Dieter; Becker, Katja; Schirmer, Rolf Heiner; Zipplies, Matthias F.; Staab, Heinz A.In order to gain further insight into the physical basis of flavin-catalyzed reactions, the interactions of a flavin with a second flavin and with other aromatic ring systems were studied. For this purpose compounds through 1 were synthesized These compounds contain the interacting units in defined geometric orientation. A monomeric flavin and glutathione reductase a flavoenzyme of known active-site chemistry, were included as reference molecules. The present report deals with excited triplet states of the flavin compounds as studied by optical spectroscopy and optically detected magnetic resonances (ODMR) at 1.3K.Item Open Access The synthesis of self-test control logic(1989) Haberl, Oliver F.; Wunderlich, Hans-JoachimIn recent years, many built-in self-test techniques have been proposed based on feedback shift-registers for pattern generation and signature analysis. But in general, these test-registers cannot test several modules of the chip concurrently, and they have to be controlled by external automatic test equipment. The authors propose a method to integrate additional test-control logic into the chip. On the basis of a register-transfer description of the circuit, the test control is derived, and a corresponding finite automation is synthesized. A hardware implementation is proposed, resulting in circuits where the entire self-test only consists in activating the test mode and clocking and evaluating the overall signature.Item Open Access Ökonomische Auswirkungen des Einsatzes neuer Informationstechnologien in der Güterdistribution(1988) Arnold, UlliWir haben eine Tendenz zur zahlenmäßigen Verringerung der Zulieferer festgestellt. Es gibt schon Beispiele dafür, daß nur noch ein einzelner Zulieferer "just-in-time" eingeschaltet wird. Für den Wettbewerb zwischen diesen Wirtschaftsstufen bedeutet das, daß marktwirtschaftliche Abstimmungsprozesse durch wechselseitige Planabstimmungen ersetzt werden. Damit werden zugleich auch Markteintrittsbarrieren aufgebaut. Andererseits wird der Marktaustritt wegen der wechselseitigen Verflechtungen zumindest nicht mehr kurzfristig möglich sein. Die Wettbewerbsbeziehungen werden statisch und von reinen Macht- bzw. Verteilungskonflikten zwischen den Parteien beherrscht. Das Kräftegleichgewicht in einem Distributionssystem wird sich nur durch jene Unternehmen verändern lassen, die zu beachtlichen transaktionsspezifischen Investitionen in der Lage sind, etwa zum Aufbau und Betrieb einer zentralen Datenbank.Item Open Access Item Open Access Risk communication on the community level : european experiences from the Seveso directive(1988) Renn, OrtwinThe following paragraphs will describe the major provisions of the Soveso Directive, report on the implementation of and experiences with the Seveso Directive in the EC member states, analyze the relationships between regulatory style and risk communication, and summarize the findings in forms of recommendations for future activities of risk communications in the US.Item Open Access Organisational culture and marketing efficiency(1988) Arnold, Ulli; Bauer, AndrásThis paper discusses the significance of various theoretical and methodological approaches to the concept of organizational culture with respect to the marketing activities of a company. Emphasis is placed on the marketing staff's function as a link between the cultures within and outside of the organization. The currently popular view of organizational culture as a new management tool is criticized; it is shown that the assumptions which underly this research practice do not meet scientific standards. The reason for this is that culture is assumed to be different for every organization; this would imply that cross-organizational and even cross-situational comparisons could not be made and results could never be generalized. Alternative methodological approaches are discussed with respect to their practicability in today's markets.Item Open Access Digital signal processing of the fetal heart sound(1982) Kartmann, Peter; Schlotter, Claus M.; Zhou, Li Gao; Nagel, Joachim H.; Schaldach, Max-