Diese Arbeit untersucht den Zusammenhang von Resilienz, protektiven Faktoren und Verhalten von Abschlussschülern mit sonderpädagogischen Förderbedarf im Förderschwerpunkt Lernen, welche sich in der Berufswahlvorbereitung befinden. Die Daten zur Berufswahlvorbereitung, zur Resilienz und zu den protektiven Faktoren wurden deskriptiv mittels eines dafür entwickelten Fragebogens in den Abschlussklassen von sieben Förderschulen in München und Umgebung erhoben. So konnte in dieser Untersuchung ein...

Wird ein Veränderungsprozess in Bibliotheken tatsächlich angegangen, zeigt sich zumeist, dass Bibliothekarinnen und Bibliothekare Veränderungen viel offener gegenüberstehen und vielversprechendere Zukunftskonzepte verfolgen, als ihnen – vor allem vom eigenen Berufsstand – gerne unterstellt wird. Bibliotheken jedenfalls haben in der letzten Dekade im Vergleich mit anderen Einrichtungen der öffentlichen Hand einen sehr erfolgreichen Innovationsprozess gestartet. Ein, wenn nicht sogar der Erfol...

We consider the problem of designing experiments for the estimation of a target in regression analysis if there is uncertainty about the parametric form of the regression function. A new optimality criterion is proposed, which minimizes the asymptotic mean squared error of the frequentist model averaging estimate by the choice of an experimental design. Necessary conditions for the optimal solution of a locally and Bayesian optimal design problem are established. The results are illustra...

Climate change induces the probability of occurring natural disasters; e.g. floods, Sea Level Rise, Green House Gases. Flood is considered one of the most dangerous phenomena that tremendously and dramatically threatening the human being and environment worldwide. Rapid urban growth, demographic explosion, and unplanned land uses have exacerbated the problem of urban flooding, particularly in the cities of China. In addition to that, the concept of flood risk management and adaptation measure...

Diese Arbeit untersucht nostalgische Architektur in den post-suburbanen Siedungsräumen der USA unter kulturwissenschaftlichen Gesichtspunkten, um zentrale offene Fragen, die dieses Phänomen aufwirft, beantworten zu können: warum ist diese Architektur in den USA vor allem in neuen Baugebieten populär? Wann hat neohistorische Architektur begonnen den optimistischen Modernismus der Nachkriegsjahre zu verdrängen? Wer strebt warum in Post-Suburbia nach einer idealisierten Vergangenheit? Aus kultur...

In a growing market environment, local owner operated retail outlets (LOOROs) are obliged to adapt their own business models to the intense competitive situation in the retail sector. LOOROs seem to be threatened in their very existence by both the pressure of digitalization due to online and offline competitors and the changing shopping habits of the customers. Despite their limited resources (e.g., lack of time and knowledge as well as of human and financial resources, etc.), LOOROs are not...

Efficiency of the electromagnetic forming process is very less. Leakage flux contributes to a fraction of total energy loss in the forming process, and it is related to the coupling between the coil and workpiece. The workpiece experiencing Lorentz force should be as close as possible to the tool coil in order to achieve higher utilization of discharge energy. In this paper, experimental and numerical simulation study is performed to observe the coil-tube magnetic coupling effect on tube exp...

This paper examines the effect of reduced ambient pressure during the welding process on the quality of magnetic pulse weld seams. For this purpose, a specifically developed vacuum chamber was applied, which enables a reproducible implementation. This, in turn, prepared the ground for a systematic examination of this promising process parameter. The tests focused on comparison of the weld seams realized with different currents and acceleration distances under atmospheric pressure and in the v...

Electromagnetic forming (EMF), due to its advantages of light-equipment, single-side die, improved formability, reduced wrinkling, lower spring-back, and so on, is high potential for shaping large sheet metal parts in aviation and aerospace industries, which are generally relative expensive and difficult to be formed with conventional process. By exploiting the potential benefits of EMF, the required forming cost can be reduced, and the forming quality can be improved. Until now, however, the...

The research of the electromagnetic forming (EMF) technology at the Wuhan National High Magnetic Field Center (WHMFC) has focused on designing electromagnetic system for generating a more flex-ible and strong Lorentz forces acting on workpieces, and then expanding the applications of EMF technology to solve current problems in forming large-scale and complex components. In this paper, we will sum up the latest progress of EMF technology at the WHMFC in detail according to recently reported wo...

This paper aims at presenting an efficient computational tool for magnetic pulse forming processes. This too - based on the coupling between the FORGE® thermomechanical solver and an electromagnetic module - is then applied to investigating a test case provided by the I2FG Group for benchmarking purposes. Comparisons carried out between the results obtained using a quasi-static constitutive law with one taking into account the dynamic behaviour of the material emphasize the sensitivity to dyn...

With the increase in losses in electric power transmission in crimped terminal-wire interconnections, due to improper crimping using conventional crimping process, it is essential to find a more efficient crimping technique. Some crucial challenges in conventional terminal-wire crimping process are spring back of terminal on tool relaxation, non-uniform terminal deformation due to tool-terminal contact process, flash out of material, voids between the wire strands etc. To overcome these probl...

The results of the investigation of the effect of the magnetic field penetration through a blank wall on the necessary parameters of the pulse-magnetic forming are presented in this paper. The purpose of the work is to determine the permissible scope of engineering techniques for calculating the processes of pulse-magnetic forming of thin-walled parts. Process studies include conducting experiments, calculating by engineering methods and computer simulation of the process using LS-DYNA. As a ...

Vaporizing Foil Actuator Welding process was used to weld 1mm thick aluminum alloy 6061 sheet to 3.2 mm thick 4130 grade steel plate. Temporal evolution of the flyer sheet velocity was recorded at four locations on the flyer sheet using photonic Doppler velocimetry. The welded samples were subjected to mechanical and microstructural characterization. Although the welded interface did not show a very wavy characteristic, the welds had substantial strength. Welds made with a softer temper, T4 a...

Electrohydraulic forming has the advantages in improving formability and deformation precision of the workpiece, so it is concerned and applied in the plastic deformation for high precision parts, which are made of sheet or tube and difficult to form by traditional methods. However, electrohydraulic forming is based on a coupled effect of gaseous, liquid, and solid media and materials, and its states cannot be identified by experiments alone. Therefore, this paper takes the local bulging defo...