Policy-based management of medical devices and applications

Die Arbeit präsentiert einen erweiterten Ansatz zum autonomen technischen Management, der das innovative Modell-basierte Management mit dem etablierten Policy-basierten Management kombiniert. Zur Planung des Systems wird ein umfassendes Modell des Management- und des zu verwaltenden Systems entworfen. Beide Systeme werden auf drei Abstraktionsschichten („Use Cases“, „Services“, „Components“) modelliert. Auf Basis der vorgestellten Ableitungsmuster (Evaluierungs-, Kontroll- und Verfeinerungsmuster) und der Zwischenschichtassoziationen wird der Prozess der Ableitung der Management-Policies automatisiert mit Hilfe eines Modellierungstools durchgeführt. Am Ende werden die zur Laufzeit vom Management ausführbaren Policies generiert. Der Ansatz wird im Rahmen des medizinischen Anwendungsfeldes erprobt. Es wird gezeigt, dass der Ansatz die Entwicklung und Verlässlichkeit sowie den Betrieb des medizinischen Geräte- und Anwendungsensembles unterstützt.This work presents an extended approach to the autonomous technical management, which combines the innovative model-based management with the established policy-based management technique. A comprehensive model of the managed and the management system is created. Both systems are modeled on three abstraction layers („Use Cases“, „Services“, „Components“). On the basis of the introduced policy derivation patterns (evaluation, control and refinement patterns) and intra-layer associations the policy derivation process is conducted automated by means of a modeling tool. Finally, runnable policies are generated which are enforced by the management at runtime. The approach is applied within the medical application field. It is demonstrated, that the presented technical management supports the development and dependable behavior of medical devices and applications

Large space structures and systems in the space station era: A bibliography with indexes

Bibliographies and abstracts are listed for 1372 reports, articles, and other documents introduced into the NASA scientific and technical information system between January 1, 1990 and June 30, 1990. Its purpose is to provide helpful information to the researcher, manager, and designer in technology development and mission design according to system, interactive analysis and design, structural and thermal analysis and design, structural concepts and control systems, electronics, advanced materials, assembly concepts, propulsion, and solar power satellite systems

Spacelab Science Results Study

Beginning with OSTA-1 in November 1981 and ending with Neurolab in March 1998, a total of 36 Shuttle missions carried various Spacelab components such as the Spacelab module, pallet, instrument pointing system, or mission peculiar experiment support structure. The experiments carried out during these flights included astrophysics, solar physics, plasma physics, atmospheric science, Earth observations, and a wide range of microgravity experiments in life sciences, biotechnology, materials science, and fluid physics which includes combustion and critical point phenomena. In all, some 764 experiments were conducted by investigators from the U.S., Europe, and Japan. The purpose of this Spacelab Science Results Study is to document the contributions made in each of the major research areas by giving a brief synopsis of the more significant experiments and an extensive list of the publications that were produced. We have also endeavored to show how these results impacted the existing body of knowledge, where they have spawned new fields, and if appropriate, where the knowledge they produced has been applied