149 research outputs found
Europa in der weltwirtschaftlichen Entwicklung: Beiträge zu einer Vortragsveranstaltung des Instituts für Weltwirtschaft
Professor Dr. Norbert Walter Europäische Konjunktur- und Währungsprobleme an der Jahreswende 1978/79 3 Dr. Frank Wolter Die Staatshandelsländer als Konkurrenten auf den europäischen Industriewarenmärkten 10 Dr. Klaus-Werner Schatz Wirtschaftliche Aspekte der Süderweiterung der Europäischen Gemeinschaft 15 Paulgeorg Juhl Vernichten Auslandsinvestitionen heimische Arbeitsplätze? . 2
Europa in der weltwirtschaftlichen Entwicklung: Beiträge zu einer Vortragsveranstaltung des Instituts für Weltwirtschaft
Professor Dr. Norbert Walter Europäische Konjunktur- und Währungsprobleme an der Jahreswende 1978/79 3 Dr. Frank Wolter Die Staatshandelsländer als Konkurrenten auf den europäischen Industriewarenmärkten 10 Dr. Klaus-Werner Schatz Wirtschaftliche Aspekte der Süderweiterung der Europäischen Gemeinschaft 15 Paulgeorg Juhl Vernichten Auslandsinvestitionen heimische Arbeitsplätze? . 21 --
Nondestructive Testing for Graduate Students at Dresden International University and Iowa State University
Education in Nondestructive Evaluation is managed in different countries and different industrial sectors in various ways. The options vary from special courses for technicians with theoretical and practical knowledge, special courses focused on requirements in dedicated fields as aerospace and learning theoretical and practical issues from Level-3-Experts in the company during work.
These systems, the knowledge of the practical aspects of the different methods for technicians who handle day by day with these techniques is splendidly constructed with top-quality. But for engineers, scientists and academics, who work on optimizing and enlarging methods, developing new methods and who use theoretical simulation models, it is important to get a broader scientific background.
In this contribution we present a Master Course for Nondestructive Testing developed by the “Dresden International University” in close cooperation with the Technical University Dresden and the Fraunhofer IZFP. The students get an extensive background knowledge of a plurality of Nondestructive methods. The teachers comes from University as well as the Fraunhofer Institute, so it is secured that both the theoretical basics and novel research and developments are included. This is assisted by practical trainig at the Fraunhofer Institute. The requirement for participation is a successful finished study in engineering or science. The special feature on this Master course is its character as correspondence course. The main content is taught at distance learning courses using digital scripts and video conferences, questions are answered using E-mail and phone, too. For four weeks in the year the students have to show presence on campus in Dresden for practical courses and exams. The course of studies finishes with the international accredited certificate as Master of Science for Nondestructive Testing.
This master degree can be compared the NDE Minor program that is offered at the Iowa State University. This is an additional certificate that graduate students in engineering can earn by taking a certain number of NDE related courses. In the paper we will briefly compare both Programs for NDE education for graduate students at both Universities
Ga substitution as an effective variation of Mn-Tb coupling in multiferroic TbMnO3
Ga for Mn substitution in multiferroic TbMnO has been performed in
order to study the influence of Mn-magnetic ordering on the Tb-magnetic
sublattice. Complete characterization of TbMnGaO ( = 0,
0.04, 0.1) samples, including magnetization, impedance spectroscopy, and x-ray
resonant scattering and neutron diffraction on powder and single crystals has
been carried out. We found that keeping the same crystal structure for all
compositions, Ga for Mn substitution leads to the linear decrease of and , reflecting the reduction of the exchange
interactions strength and the change of the Mn-O-Mn bond
angles. At the same time, a strong suppression of both the induced and the
separate Tb-magnetic ordering has been observed. This behavior unambiguously
prove that the exchange fields have a strong influence on the
Tb-magnetic ordering in the full temperature range below
and actually stabilize the Tb-magnetic ground state.Comment: 9 pages, 8 figure
Northeast Colorado Extreme Rains Interpreted in a Climate Change Context
The probability for an extreme five-day September rainfall event over northeast Colorado, as was observed in early September 2013, has likely decreased due to climate change
Acoustic process monitoring in laser beam welding
Structure-borne acoustic emission (AE) measurement shows major advantages regarding quality assurance and process control in industrial applications. In this paper, laser beam welding of steel and aluminum was carried out under varying process parameters (welding speed, focal position) in order to provide data by means of structure-borne AE and simultaneously high-speed video recordings. The analysis is based on conventionally (e.g. filtering, autocorrelation, spectrograms) as well as machine learning methods (convolutional neural nets) and showed promising results with respect to the use of structure-borne AE for process monitoring using the example of spatter formation
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