Results 71 to 80 of about 40,117 (257)

Austrian Social Security Database [PDF]

The Austrian Social Security Database (ASSD) is a matched firm-worker data set, which records the labor market history of almost 11 million individuals from January 1972 to April 2007. Moreover, more than 2.2 million firms can be identified.
Andreas Kuhn, Jean-Philippe Wuellrich, Josef Zweimüller, Oliver Ruf, Rafael Lalive, Rudolf Winter-Ebmer, Simon Büchi   +6 more
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Cauchy’s stress theorem and its influence on the first elasticity tensor

Examples and Counterexamples
The well-known Clausius–Planck inequality for solids is derived from the second law of thermodynamics and provides the important relation between stress and strain tensors according to the Coleman–Noll procedure.
Stefan Buchen
doaj   +1 more source

What makes the Difference between Unsuccessful and Successful Firms in the German Mechanical Engineering Industry? [PDF]

Against a background of rising costs and increasing competition, it is besoming more and more difficult for the small and medium-sized firms of the German mechanical engineering industry to be economically successful.
Merz, Joachim, Niggemann, Hiltrud, Widmaier, Ulrich   +2 more
core   +1 more source

Membran‐Bioreaktor‐Technik kombiniert mit nachgeschalteter Ozonung – Vergleich mit konventionellen Ozonanwendungen Combination of Membrane Bioreactor and Downstream Ozonation – A Comparison to Conventional Ozone Applications

Chemie Ingenieur Technik, Volume 97, Issue 7, Page 677-688, July 2025.
Kommunale Kläranlagen gelten als Haupteintragspfad organischer Mikroschadstoffe in die aquatische Umwelt. Ein Großteil der Arzneimittelrückstände und Industriechemikalien wird in Kläranlagen nicht oder nur teilweise entfernt. Um einen qualitativ höheren Kläranlagen‐Ablauf zu erzeugen, wird eine Kombination aus hybridem Teilstrom‐Membran‐Bioreaktor mit ...
Maximilian Werner, Jie Ji, Minyi Yin, Holger Lutze, Stefan Panglisch   +4 more
wiley   +1 more source

Improved pseudo-ductile behavior of powder metallurgical tungsten short fiber-reinforced tungsten (Wf/W)

Nuclear Materials and Energy, 2018
For the first wall of a fusion reactor unique challenges on materials in extreme environments require advanced features in areas ranging from mechanical strength to thermal properties.
J.W. Coenen, Y. Mao, S. Sistla, J. Riesch, T. Hoeschen, Ch. Broeckmann, R. Neu, Ch. Linsmeier   +7 more
doaj   +1 more source

Wie deuten Wissenschaftlerinnen im Maschinenbau ihren Erfolg?

Forum: Qualitative Social Research, 2016
Frauen, die ein Studium des Maschinenbaus beginnen, haben größere Chancen auf eine erfolgreiche akademische Karriere als in anderen Fächern. In diesem Artikel fragen wir, wie Maschinenbauerinnen ihren Erfolg selbst deuten.
Eva Barlösius, Grit Fisser
doaj  

Influence of Pin Length and Electrochemical Platings on the Mechanical Strength and Macroscopic Defect Formation in Stationary Shoulder Friction Stir Welding of Aluminium to Copper

Metals, 2018
The fabrication of dissimilar joints for electrical applications raises challenges for conventional joining technologies. Within solid-state processes, friction stir welding (FSW) provides numerous advantages to realize different joint configurations ...
Anna Regensburg, René Schürer, Markus Weigl, Jean Pierre Bergmann   +3 more
doaj   +1 more source

Tungsten fibre-reinforced composites for advanced plasma facing components

Nuclear Materials and Energy, 2017
The European Fusion Roadmap foresees water cooled plasma facing components in a first DEMO design in order to provide enough margin for the cooling capacity and to only moderately extrapolate the technology which was developed and tested for ITER.
R. Neu, J. Riesch, A.v. Müller, M. Balden, J.W. Coenen, H. Gietl, T. Höschen, M. Li, S. Wurster, J.-H. You   +9 more
doaj   +1 more source

Extrusion of Aluminum Tubes with Axially Graded Wall Thickness and Mechanical Characterization [PDF]

, 2014
In this study the indirect extrusion of seamless aluminum tubes with variable wall thickness was investigated. Therefore, an axially moveable stepped mandrel was applied.
Müller, Sören, Negendank, Maik, Reimers, Walter   +2 more
core   +1 more source

Maschinenbau: Bedeutung für den deutschen Außenhandel [PDF]

Im vergangenen Jahr verzeichnete Deutschland einen Rekordüberschuss im Außenhandel in Höhe von 83,6 Mrd. Euro, mehr als doppelt so viel wie im Jahre 2001. Der Maschinenbau ist nach der Automobilindustrie die zweitgrößte Exportbranche.
Jörg-Peter Weiß
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