Now showing items 51-60 of 104
Concept and design of a high speed current mode based SAR ADC
(Universität Ulm, 2016-07-20)
There is continuous research to exploit the improved speed of scaled CMOS technologies in realizing high-speed analog-to-digital converters and SAR ADCs are one of the candidates which can significantly benefit from this ...
Some studies of quasi-planar antennas
(Universität Ulm, 2016-12-21)
Recent decades have witnessed the rapid evolution of wireless sensing and communication systems aimed at the consumer market. The antenna is a key component in any of these systems, and the selection criteria for a commercial ...
Improvement of Cu(In,Ga)(S,Se)2 thin film solar cells with the help of Gallium and Sulfur gradients
(Universität Ulm, 2017-09-05)
The aim of this work is to optimize the absorber for Cu(In,Ga)(S,Se)2 thin film photovoltaic cells in order to get a higher efficiency of the energy conversion in the framework of a well-established industrial process. In ...
Anwendungsübergreifende Dialoge durch Wissensbasen und Taskmodelle
(Universität Ulm, 2017-11-24)
Elektronische Geräte sind zunehmend allgegenwärtig und beinhalten diverse Funktionen mit verschiedenen Anwendungen. Benutzern sind diese Funktionen oftmals so wichtig, dass sie diese selbst durchführen, wenn sie von anderen ...
Construction and decoding of evaluation codes in hamming and rank metric
(Universität Ulm, 2018-08-30)
This dissertation considers constructions and decoders of several evaluation codes in Hamming and rank metric. Codes in Hamming metric have been studied since the 1950s and the known codes considered in this thesis have ...
Healthy cognitive aging through cognitive training, physical exercise, and leisure activities : from theory to new interventions
(Universität Ulm, 2018-07)
Neurocognitive health is becoming increasingly important in our aging population. Worldwide, around 47 million people are living with dementia and the number is expected to increase to 131.5 million by 2050. Engagement in ...
Affective processing of conditioned stimuli
(Universität Ulm, 2018)
Channel-SLAM: multipath assisted positioning
(Universität Ulm, 2018-10-18)
In wireless propagation transmitted signals are reflected, scattered and diffracted by objects. Especially in urban canyons or inside buildings, the signal reaching the receiving antenna consists of multiple replicas of ...
Why knowledge is relevant in real-world settings : innovative approaches to examine the knowledge-is-power hypothesis
(Universität Ulm, 2018-07-31)
Domain-specific knowledge contributes to individual differences in many cognitive tasks. Research suggests that the underlying mechanisms might best be described with the knowledge-is-power hypothesis, claiming that prior ...
Three-dimensional InGaN/GaN based light emitters with reduced piezoelectric field
(Universität Ulm, 2018-05-07)
Due to the polar character of III-nitrides, the efficiency of InGaN/GaN-based light emitting diodes (LEDs) decreases with an increasing emission wavelength and gets quite low at the wavelength of green light. Therefore, ...