Products

The reconstruction of 3D scene models from arbitrary video sequences is a central task of computer vision. Applications range from the autonomous navigation of robots to the acquisition of 3D models for the entertainment industry. Typical approaches identify and track landmarks in the images as a first step and then recover the geometry in a separate, second step. This book instead focuses on a combination of the two steps. By embedding the novel, combined method in a model-based mathematical framework,...

Strong market segmentation and rapidly changing diverse technologies, combined with increased competitive intensity, are forcing global manufacturing companies to reconsider their product development strategy. Modularization in product development is essential for these companies to compete sustainably in such an international and dynamic environment. However, companies face major challenges in the modularization of product development. This dissertation empirically analyzes the modularization of product development in global manufacturing companies with special regard given to the interrelations between product architecture and product development...

Tropical rainforests are hostspots of biodiversity. Therefore, their species' richness and sustainability are of central importance. However, during the last decades, the destruction of tropical forest, mainly by illegal logging, has severely degraded the tropical rainforests. In terms of forest certification, timber identification of tree species and their origin are recently being applied for monitoring and control of illegal activities and thereby aiming at the conservation of tropical forests. The development of molecular methods (e.g. genetic fingerprints) as tools for...

Against the background of the scientific discussion about the economic-political implementation options of the sustainability goal of the federal government to reduce the designated area to 30 ha/day by 2020, the book examines the reaction and thus the adaptation possibilities of companies as demanders of space to the reduction the reallocation of land. For this purpose, a company survey of small and medium-sized companies in four German planning regions took place. The author first presents the status quo of the...

In recent decades, the frequency of flood events has increased significantly due to human intervention in the natural course of rivers. However, the population's awareness of the increased risk of flooding is low. In order to counteract this development, the observation of sustainable flood protection measures and their propagation in the public and in the educational sector are essential. The present work starts at this point and includes a series of lessons with ESD claim for the subjects of social...

Scientific phenomena are part of children's everyday lives. Since PISA, scientific education has become increasingly important, even in elementary school. At the University of Flensburg, the advanced training concept "Experiment makes you smart" was developed with the aim of further training elementary teachers in the field of natural sciences and technology in order to be able to competently accompany research-based experimentation in day-care centers. This study, as an accepted dissertation at the University of Flensburg, investigates the extent to which...

The current work investigates two fundamental problems of small molecule organic solar cells (OSC): transparent top contacts and alternative donor materials. Transparent top contacts are a prerequisite for inverted, i.e. top-illuminated OSC on opaque substrates. This work documents that transparent, ultra-thin metal films are a possible solution to this challenge. It is shown that silver or gold layers with thicknesses Three diindenoperylene derivatives are introduced as green donor materials. Although these experiments are still at a very early stage, OSC...

Rural households in Vietnam engage in a broad range of activities outside the agricultural sector. On the one hand, these include wage employment in construction, industries and services. On the other hand, there are numerous business and self-employment activities, for example in trade and handicrafts. Motives for participation are as diverse as the activities themselves. They range from risks and shocks in the agricultural sector, to higher and more secure incomes, to the realization of business opportunities. In this dissertation,...

This dissertation examines emergency care by public and private rescue services in Namibia. The research focuses on the structure, allocation and location of rescue workers and the resulting behavior of the population. The investigation should enable a description and explanation of the system design at the time of the survey and the emergence of the system by means of a policy field analysis. In addition, the procedures of the rescue services, in particular existing strengths and weaknesses, were examined. This...

Engines, aircraft engines or gas turbines are just a few examples of technical combustion systems. The energy chemically bound in the fuel is converted into other forms of energy with the help of a combustion process. Combustion control is crucial to develop efficient and low-emission systems. As a prediction tool, computer simulation is already making a major contribution that will continue to grow in the future. The simultaneous further development of turbulence and combustion models is crucial in order to...

The subject of this thesis is the development of a method for the numerical simulation of gasoline self-ignition. In addition to the calculation of non-reacting flows with moving and stationary computational grids, a piloted methane-air jet flame is simulated. In addition, the work gives an outlook on the treatment of a near-production single-cylinder 4-stroke gasoline engine with direct injection in compression-ignition mode. The developed numerical method is based on a time-resolved, three-dimensional description of the gas and the disperse phase...

Today, batteries serve as a power supply for almost every electronic device which people carry around or install in locations that have no access to the mains. The longer a battery powered system can operate without need for recharge or battery replacement, the more will maintenance cost and the number of faults due to insufficient power supply decrease. This work considers multiple independent software tasks that are assigned to the same processor. The tasks are supposed to have hard deadlines...