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Linz, Austria

The Johannes Kepler University of Linz is a public institution of higher education in Linz, the capital of Upper Austria. It offers bachelor's, master's, diploma and doctoral degrees in business, engineering, law, science, and the social science.Today, 19,300 students study at the park campus in the northeast of Linz, with 1 out of 9 students being from abroad. The university was the first in Austria to introduce an electronic student ID in 1998 and the whole campus has Wireless LAN coverage.The university is home of the Johann Radon Institute for Computational and Applied Mathematics of the Austrian Academy of science.In 2012, the Times Higher Education ranked the JKU at #41 in its list of the top 100 universities under 50 years old. According to the ranking, the JKU is the fifth best young university in the German-speaking Europe. The university attained high scores for quotations, third-party funding, and internationalization efforts. Wikipedia.

Irimia-Vladu M.,Joanneum Research | Irimia-Vladu M.,Johannes Kepler University
Chemical Society Reviews | Year: 2014

"Green" electronics represents not only a novel scientific term but also an emerging area of research aimed at identifying compounds of natural origin and establishing economically efficient routes for the production of synthetic materials that have applicability in environmentally safe (biodegradable) and/or biocompatible devices. The ultimate goal of this research is to create paths for the production of human- and environmentally friendly electronics in general and the integration of such electronic circuits with living tissue in particular. Researching into the emerging class of "green" electronics may help fulfill not only the original promise of organic electronics that is to deliver low-cost and energy efficient materials and devices but also achieve unimaginable functionalities for electronics, for example benign integration into life and environment. This Review will highlight recent research advancements in this emerging group of materials and their integration in unconventional organic electronic devices. © The Royal Society of Chemistry.

Egyed A.,Johannes Kepler University
IEEE Transactions on Software Engineering | Year: 2011

Software models typically contain many inconsistencies and consistency checkers help engineers find them. Even if engineers are willing to tolerate inconsistencies, they are better off knowing about their existence to avoid follow-on errors and unnecessary rework. However, current approaches do not detect or track inconsistencies fast enough. This paper presents an automated approach for detecting and tracking inconsistencies in real time (while the model changes). Engineers only need to define consistency rules - in any language - and our approach automatically identifies how model changes affect these consistency rules. It does this by observing the behavior of consistency rules to understand how they affect the model. The approach is quick, correct, scalable, fully automated, and easy to use as it does not require any special skills from the engineers using it. We evaluated the approach on 34 models with model sizes of up to 162,237 model elements and 24 types of consistency rules. Our empirical evaluation shows that our approach requires only 1.4 ms to reevaluate the consistency of the model after a change (on average); its performance is not noticeably affected by the model size and common consistency rules but only by the number of consistency rules, at the expense of a quite acceptable, linearly increasing memory consumption. © 2006 IEEE.

Klampfl C.W.,Johannes Kepler University
TrAC - Trends in Analytical Chemistry | Year: 2013

The potential of mass spectrometry (MS) for the analysis of stabilizers in plastics materials is reviewed, discussing the strong and weak points of the different techniques. Direct analysis of plastics samples without any, or with only minor, preparation steps is possible with MS techniques. Here, the primary focus lies in the fast identification of stabilizers in plastics, which is a useful tool for screening larger sets of samples. Also, the possibility of spatially-resolved surface analysis by MS is discussed. © 2013 Elsevier Ltd.

Porous monoliths based on organic precursors undergoing free-radical cross-linking polymerization in porogenic solvents emerged approximately two decades ago as an alternative stationary phase material for diverse applications including liquid chromatography. Though having a profound difference in morphology to their earlier generation polymer bead-based counterparts, they are often based on similar chemistries and as such show certain peculiarities with respect to transport and performance in liquid chromatography applications. Polymer monoliths typically consist of a globule-like, three-dimensionally adhered backbone, which is in a contrast to the silica monoliths having a bi-continuous mesoporous skeleton. Both material types possess large flow-through pores making them desirable for high performance liquid chromatography and other flow-through applications. The current review is devoted to a critical appraisal of the major challenges that researchers face in the retrieval of the never-ending demand of efficiency at often forgotten and desired selectivity and retention in separations using porous polymer monoliths. Therefore, an attempt is made to establish profound links of polymer monoliths to their earlier generation polymer-based particulate beds and differences to silica-based materials. These links are associated with an emerging morphological understanding of the polymer monoliths porous flow-through pore structure, the nanoscale backbone chemistry, and related chromatographic performances in both theoretical and experimental studies. Associated with this understanding, existing attempts in improving flow and transport performance of polymer monoliths are described and discussed. Such developments are addressing morphological concerns with respect to homogeneity and detailed design of pore space, but also tailoring backbone nanostructural chemistry to modulate mass transfer. © 2012 Elsevier B.V.

Buchberger W.,Johannes Kepler University
Journal of Chromatography A | Year: 2011

A large number of xenobiotics including pharmaceuticals and personal care products are continuously released into the environment. Effluents from sewage treatment plants are well known to be the major source for introduction of pharmaceuticals and personal care products into the aquatic system. In recent years, reliable methods have been established for residue analysis of these pollutants down to low ng/L levels. In this review, the different approaches to their trace determination are reviewed with special attention being paid to sample preparation procedures, state-of-the-art high-performance separation methods hyphenated with mass spectrometry, and immunochemical methods. © 2010 Elsevier B.V.

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