karlsruher institut für technologie jan 2014 (12 results)

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This thesis studies the development of LEKID arrays for the use in a mm-wave camera for the IRAM 30m telescope. This includes the design and fabrication of the superconducting microresonators, the modeling and optimization of the mm-wave coupling to the detector and the characterization of the arrays at low temperatures. The results obtained brought IRAM to test a prototype instrument at the telescope, where first astronomical results have been achieved, which are also presented in this work. 220 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Bioluminescence tomography is a recent biomedical imaging technique which allows to study molecular and cellular activities in vivo. From a mathematical point of view, it is an ill-posed inverse source problem: the location and the intensity of a photon source inside an organism have to be determined, given the photon count on the organism's surface. To face the ill-posedness of this problem, a geometric regularization approach is introduced, analyzed and numerically verified in this book. 196 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this work we present a system to fully automatically create a highly accurate visual feature map from image data aquired from within a moving vehicle. Moreover, a system for high precision self localization is presented. Furthermore, we present a method to automatically learn a visual descriptor. The map relative self localization is centimeter accurate and allows autonomous driving. 142 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this thesis, new concepts of body-matched antennas for microwave medical applications were developed, where the antennas are placed directly on or in the human body. Two types of antennas were designed - on-body matched antennas for diagnosis and implantable antennas for data telemetry with the main focus of miniaturization yet maintained a high radiation performance. The applicability of the antennas was verified using a medical imaging system for the detection of hemorrhagic stroke. AbstractEnglisch = In this thesis, new concepts of body-matched antennas for microwave medical applications were developed, where the antennas are placed directly on or in the human body. Two types of antennas were designed - on-body matched antennas for diagnosis and implantable antennas for data telemetry with the main focus of miniaturization yet maintained a high radiation performance. The applicability of the antennas was verified using a medical imaging system for the detection of hemorrhagic stroke. 226 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -State estimation techniques for centralized, distributed, and decentralized systems are studied. An easy-to-implement state estimation concept is introduced that generalizes and combines basic principles of Kalman filter theory and ellipsoidal calculus. By means of this method, stochastic and set-membership uncertainties can be taken into consideration simultaneously. Different solutions for implementing these estimation algorithms in distributed networked systems are presented. 290 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -CAE ProNet methodology is to develop CAE network considering interdependencies among digital validations. Utilizing CAE network and considering industrial requirements, an algorithm is applied to execute a product, vehicle development phase, and load case priority oriented CAE process. Major advantage of this research work is to improve quality of simulation results, reducing time-to-market and decreasing dependencies on hardware prototype. 236 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Quality attributes, such as performance or reliability, are crucial for the success of a software system and largely influenced by the software architecture. Their quantitative prediction supports systematic, goal-oriented software design and forms a base of an engineering approach to software design. This thesis proposes a method and tool to automatically improve component-based software architecture (CBA) models based on such quantitative quality prediction techniques. 582 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Ranking - the algorithmic decision on how relevant an information artifact is for a given information need and the sorting of artifacts by their concluded relevancy - is an integral part of every search engine. In this book we investigate how structured Web data can be leveraged for ranking with the goal to improve the effectiveness of search. We propose new solutions for ranking using on-the-fly data integration and experimentally analyze and evaluate them against the latest baselines. 218 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Mineralstoffe und Spurenelemente sind unverzichtbare Bestandteile oder Kofaktoren in nahezu allen Stoffwechselwegen. Allerdings werden die optimalen Aufnahmemengen oft kontrovers diskutiert. Essentielle Funktionen sowie Nutzen-Risiko-Betrachtungen unter Einbeziehung von Nahrungsergänzungsmitteln werden am Beispiel von Iod, Zink, Eisen, Selen, Mangan und Kupfer dargestellt. Ferner werden toxische Wirkungen von Verbindungen der Halbmetalle Arsen und Antimon beschrieben. 210 pp. Deutsch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Bei der Entwicklung nichtabbildender optischer Systeme spielt die geometrische Modellierung optischer Flächen eine bedeutende Rolle. Der mathematische Algorithmus der Maßberechnung erzeugt optische Freiformflächen mit einem direkten, nicht iterativen, Berechnungsverfahren nach den lichttechnischen Vorgaben des Optikentwicklers. Die vorgestellte Methode eignet sich insbesondere für Systeme mit sehr kleinen Lichtquellen, beispielsweise LEDs, Laserdioden und Gasentladungslampen. 168 pp. Deutsch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Wie die Gesellschaft in den Entwicklungsländern auf natürliche Gefahren reagieren kann, insbesondere in den Bereichen Prävention und Bewältigung. Welche der identifizierten Anpassungsmaßnahmen werden gesellschaftlich akzeptiert und was sind kritische Schwächen der vorhandenen räumlichen Planungsprozesse Wie können diese gelöst werden Die vorliegende Studie gibt mit Hilfe einer empirischen Erhebung des südwestliche Küstengebiets auf die oben genannten Fragen Antworten. 208 pp. Deutsch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In dieser Arbeit wird der langfristige Einfluss von Elektromobilität auf das Energiesystem modellbasiert analysiert, um Akteure im europäischen Elektrizitätssystem bei ihren Entscheidungen unter Berücksichtigung von Elektromobilität zu unterstützen. Dafür wird erstmals in dieser Tiefe die europaweite Entwicklung von Elektromobilität und des Energiesystems durch eine Modellkopplung integriert betrachtet, so dass die gegenseitigen Wechselwirkungen endogen berücksichtigt werden können. 374 pp. Deutsch.