@article{ThielTippkoetterSucketal.2013, author = {Thiel, Alexander and Tippk{\"o}tter, Nils and Suck, Kirstin and Sohling, Ulrich and Ruf, Friedrich and Ulber, Roland}, title = {New zeolite adsorbents for downstream processing of polyphenols from renewable resources}, series = {Engineering in Life Sciences}, volume = {13}, journal = {Engineering in Life Sciences}, number = {3}, publisher = {Wiley}, address = {Weinheim}, doi = {10.1002/elsc.201200188}, pages = {239 -- 246}, year = {2013}, abstract = {Commercial materials with polyvinylpolypyrrolidone and polymeric amberlites (XAD7HP, XAD16) are commonly used for the adsorptive downstream processing of polyphenols from renewable resources. In this study, beta-zeolite-based adsorbent systems were examined, and their properties were compared to organic resins. Batch adsorption experiments were conducted with synthetic solutions of major polyphenols. Adsorption isotherms and desorption characteristics of individual adsorbent were determined based on these results. Maximum adsorption capacities were calculated using the Langmuir model. For example, the zeolites had capacities up to 203.2 mg/g for ferulic acid. To extend these results to a complex system, additional experiments were performed on rapeseed meal and wheat seed extracts as representative renewable resources. HPLC analysis showed that with 7.5\% w/v, which is regarded as the optimum amount of zeolites, zeolites A and B could bind 100\% of the major polyphenols as well as release polyphenols at high yields. Additionally, regeneration experiments were performed with isopropyl alcohol at 99°C to evaluate how zeolites regenerate under mild conditions. The results showed only a negligible loss of adsorption capacity and no loss of desorption capacity. In summary, it was concluded that beta-zeolites were promising adsorbents for developing new processes to isolate polyphenols from renewable resources.}, language = {en} } @article{Staat2013, author = {Staat, Manfred}, title = {Limit and shakedown analysis under uncertainty}, series = {International journal of computational methods : IJCM}, journal = {International journal of computational methods : IJCM}, publisher = {World Scientific Publishing}, address = {Singapore}, issn = {0219-8762}, pages = {Publ. online}, year = {2013}, language = {en} } @article{SchusserMenzelBaeckeretal.2013, author = {Schusser, Sebastian and Menzel, S. and B{\"a}cker, Matthias and Leinhos, Marcel and Poghossian, Arshak and Wagner, P. and Sch{\"o}ning, Michael Josef}, title = {Degradation of thin poly(lactic acid) films: characterization by capacitance-voltage, atomic force microscopy, scanning electron microscopy and contact-angle measurements}, series = {Electrochimica Acta}, volume = {Vol. 113}, journal = {Electrochimica Acta}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1873-3859 (E-Journal); 0013-4686 (Print)}, pages = {779 -- 784}, year = {2013}, language = {en} } @article{MiciliValterOflazetal.2013, author = {Micili, Serap C. and Valter, Markus and Oflaz, Hakan and Ozogul, Candan and Linder, Peter and F{\"o}ckler, Nicole and Artmann, Gerhard and Digel, Ilya and Temiz Artmann, Ayseg{\"u}l}, title = {Optical coherence tomography : a potential tool to predict premature rupture of fetal membranes}, series = {Proceedings of the Institution of Mechanical Engineers. Part H : Journal of engineering in medicine}, volume = {Vol. 227}, journal = {Proceedings of the Institution of Mechanical Engineers. Part H : Journal of engineering in medicine}, number = {No. 4}, publisher = {Sage}, address = {London}, issn = {0046-2039 (Print) ; 2041-3033 (E-Journal)}, pages = {393 -- 401}, year = {2013}, language = {en} } @inproceedings{BeckerEggertFleischeretal.2013, author = {Becker, J{\"o}rg and Eggert, Mathias and Fleischer, Stefan and Knackstedt, Ralf}, title = {How to Teach Regulatory Compliant Data Warehouse Engineering?}, series = {Proceedings of the Nineteenth Americas Conference on Information Systems, Chicago, Illinois, August 15-17, 2013.}, booktitle = {Proceedings of the Nineteenth Americas Conference on Information Systems, Chicago, Illinois, August 15-17, 2013.}, pages = {10 S.}, year = {2013}, language = {en} } @inproceedings{GogolinCarvalhoBungetal.2013, author = {Gogolin, C. and Carvalho, R. and Bung, Daniel Bernhard and Matos, J.}, title = {Experimental and numerical investigation of steady and unsteady flows in roughened channels with cross beams}, series = {35th IAHR world congress : 8.-13.9.2013, Chengdu, China}, booktitle = {35th IAHR world congress : 8.-13.9.2013, Chengdu, China}, publisher = {Tsinghua Univ. Press}, address = {Beijing}, organization = {International Association for Hydraulic Engineering and Research}, pages = {Artikelkennnummer: A10837C}, year = {2013}, language = {en} } @inproceedings{OertelBung2013, author = {Oertel, Mario and Bung, Daniel Bernhard}, title = {Comparison of 2D dam-break waves with VOF and SPH method}, series = {Proceedings of the 35th IAHR world congress : 8.-13.9.2013, Chengdu, China}, booktitle = {Proceedings of the 35th IAHR world congress : 8.-13.9.2013, Chengdu, China}, publisher = {Tsinghua Univ. Press}, address = {Beijing}, organization = {International Association for Hydraulic Engineering and Research}, pages = {Artikelkennnummer: A11113}, year = {2013}, language = {en} } @inproceedings{Bung2013, author = {Bung, Daniel Bernhard}, title = {Air-water surface roughness in self-aerated stepped spillway flows}, series = {35th IAHR world congress : 8.-13.9.2013, Chengdu, China}, booktitle = {35th IAHR world congress : 8.-13.9.2013, Chengdu, China}, publisher = {Tsinghua Univ. Press}, address = {Beijing}, organization = {International Association for Hydraulic Engineering and Research}, pages = {Artikelkennnummer: A11045}, year = {2013}, language = {en} } @inproceedings{BeckerEggertBruningetal.2013, author = {Becker, J{\"o}rg and Eggert, Mathias and Bruning, Dennis and Saat, Jan}, title = {Applicability of Business Process Model Analysis Approaches - A Case Study in Financial Services Consulting}, series = {Wirtschaftsinformatik Proceedings 2013}, booktitle = {Wirtschaftsinformatik Proceedings 2013}, pages = {1181 -- 1195}, year = {2013}, language = {en} } @incollection{PriedeFerrein2013, author = {Priede, Gareth and Ferrein, Alexander}, title = {Towards passive walking for the fully-actuated biped robot Nao}, series = {Emerging trends in computing, informatics, systems sciences, and engineering. (Lecture notes in electrical engineering : vol. 151)}, booktitle = {Emerging trends in computing, informatics, systems sciences, and engineering. (Lecture notes in electrical engineering : vol. 151)}, publisher = {Springer}, address = {New York, NY}, isbn = {978-1-4614-3557-0 ; 978-1-4614-3558-7}, doi = {10.1007/978-1-4614-3558-7_18}, pages = {225 -- 236}, year = {2013}, abstract = {Many biped robots deploy a form of gait that follows the zero moment point (ZMP) approach, that is, the robot is in a stable position at any point in time. This requires the robot to be fully actuated. While very stable, the draw-backs of this approach are a fairly slow gait and high energy consumption. An alternative approach is the so-called passive-dynamic walking, where the gait makes use of the inertia and dynamic stability of the robot. In this paper we describe our ongoing work of combining the principles of passive-dynamic walking on the fully-actuated biped robot Nao, which is also deployed for robotic soccer applications. We present a simple controller that allows the robot to stably rock sidewards, showing a closed limit-cycle. We discuss first results of superimposing a forward motion on the sidewards motion. Based on this we expect to endow the Nao with a fast, robust, and stable passive-dynamic walk on the fully-actuated Nao in the future.}, language = {en} } @article{BuniatyanHuckPoghossianetal.2013, author = {Buniatyan, V. and Huck, Christina and Poghossian, Arshak and Aroutiounian, V. M. and Sch{\"o}ning, Michael Josef}, title = {BaxSr1-x TiO3/pc-Si heterojunction}, series = {Armenian journal of physics}, volume = {6}, journal = {Armenian journal of physics}, number = {4}, publisher = {National Academy of Sciences of Armenia}, address = {Yerevan}, issn = {1829-1171}, pages = {177 -- 187}, year = {2013}, language = {en} } @article{SchusserLeinhosBaeckeretal.2013, author = {Schusser, Sebastian and Leinhos, Marcel and B{\"a}cker, Matthias and Poghossian, Arshak and Wagner, Patrick and Sch{\"o}ning, Michael Josef}, title = {Impedance spectroscopy: A tool for real-time in situ monitoring of the degradation of biopolymers}, series = {Physica Status Solidi (A)}, volume = {210}, journal = {Physica Status Solidi (A)}, number = {5}, publisher = {Wiley}, address = {Weinheim}, issn = {1521-396X ; 0031-8965}, doi = {10.1002/pssa.201200941}, pages = {905 -- 910}, year = {2013}, abstract = {Investigation of the degradation kinetics of biodegradable polymers is essential for the development of implantable biomedical devices with predicted biodegradability. In this work, an impedimetric sensor has been applied for real-time and in situ monitoring of degradation processes of biopolymers. The sensor consists of two platinum thin-film electrodes covered by a polymer film to be studied. The benchmark biomedical polymer poly(D,L-lactic acid) (PDLLA) was used as a model system. PDLLA films were deposited on the sensor structure from a polymer solution by using the spin-coating method. The degradation kinetics of PDLLA films have been studied in alkaline solutions of pH 9 and 12 by means of an impedance spectroscopy (IS) method. Any changes in a polymer capacitance/resistance induced by water uptake and/or polymer degradation will modulate the global impedance of the polymer-covered sensor that can be used as an indicator of the polymer degradation. The degradation rate can be evaluated from the time-dependent impedance spectra. As expected, a faster degradation has been observed for PDLLA films exposed to pH 12 solution.}, language = {en} } @inproceedings{BeckerEggertSaatetal.2013, author = {Becker, J{\"o}rg and Eggert, Mathias and Saat, Jan and Dirding, Philipp}, title = {The Influence of Regulation on Data Warehouse Engineering - Investigating an IT Consulting Case in the Financial Service Industry}, series = {Proceedings of the Nineteenth Americas Conference on Information Systems, Chicago, Illinois, August 15-17, 2013.}, booktitle = {Proceedings of the Nineteenth Americas Conference on Information Systems, Chicago, Illinois, August 15-17, 2013.}, pages = {1 -- 8}, year = {2013}, language = {en} } @article{AkimbekovDigelSavitkayaetal.2013, author = {Akimbekov, Nuraly S. and Digel, Ilya and Savitkaya, I.S. and Zhubanova, A.A. and Tastambek, K.T.}, title = {Investigations of LPS endotoxin elimination in the flowing column conditions with the sorbent on the basis of carbonized rice husk}, series = {KazNU Bulletin. Biology series}, volume = {57}, journal = {KazNU Bulletin. Biology series}, number = {1}, issn = {1563-0218}, pages = {124 -- 127}, year = {2013}, language = {en} } @incollection{DachwaldUlamecBiele2013, author = {Dachwald, Bernd and Ulamec, Stephan and Biele, Jens}, title = {Clean in situ subsurface exploration of icy environments in the solar system}, series = {Habitability of other planets and satellites. - (Cellular origin, life in extreme habitats and astrobiology ; 28)}, booktitle = {Habitability of other planets and satellites. - (Cellular origin, life in extreme habitats and astrobiology ; 28)}, publisher = {Springer}, address = {Dordrecht}, isbn = {978-94-007-6545-0 (Druckausgabe)}, pages = {367 -- 397}, year = {2013}, abstract = {"To assess the habitability of the icy environments in the solar system, for example, on Mars, Europa, and Enceladus, the scientific analysis of material embedded in or underneath their ice layers is very important. We consider self-steering robotic ice melting probes to be the best method to cleanly access these environments, that is, in compliance with planetary protection standards. The required technologies are currently developed and tested."}, language = {en} } @misc{WaicziesKuehneWinteretal.2013, author = {Waiczies, Helmar and K{\"u}hne, Andr{\´e} and Winter, Lukas and Frauenrath, Tobias and Hoffmann, Werner and Ittermann, Bernd and Waiczies, Sonia and Niendorf, Thoralf}, title = {Towards theranostics of rheumatoid arthritis: 1H/19F imaging of non-steroidal anti-inflammatory drugs in hand and wrist at 7 Tesla}, series = {2013 ISMRM Annual Meeting Proceedings}, journal = {2013 ISMRM Annual Meeting Proceedings}, issn = {1545-4428}, year = {2013}, abstract = {We have developed a double-tuned ¹H/¹⁹F birdcage resonator dedicated for hand and wrist imaging at 7 T to locally image non-steroidal anti-inflammatory drugs (NSAID) such as 2-{[3-(Trifluoromethyl) phenyl]amino}benzoic acid. The preliminary in vivo images acquired by the double-tuned ¹H/¹⁹F birdcage resonator demonstrate the feasibility for ¹H/¹⁹F hand- and wrist-imaging at 7 T. While the diagnostic quality of the coil needs to be assessed in patients with inflammatory rheumatoid disease, first ¹⁹F images of the NSAID are encouraging, and point towards the prospect of applying ¹⁹F-MRI to visualize and quantify the concentration of therapeutically-active compound at the sites of inflammation.}, language = {en} } @article{WeemstraEilmannSassKlaassenetal.2013, author = {Weemstra, Monique and Eilmann, Britta and Sass-Klaassen, Ute G. W. and Sterck, Frank J.}, title = {Summer droughts limit tree growth across 10 temperate species on a productive forest site}, series = {Forest Ecology and Management}, volume = {2013}, journal = {Forest Ecology and Management}, number = {306}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0378-1127 (Print)}, doi = {doi:10.1016/j.foreco.2013.06.007}, pages = {142 -- 149}, year = {2013}, language = {en} } @inproceedings{KumaranGopinathanRazalietal.2013, author = {Kumaran, P. and Gopinathan, M. and Razali, N. M. and Kuperjans, Isabel and Hariffin, B. and Hamdan, H.}, title = {Preliminary evaluation of atomization characteristics of improved biodiesel for gas turbine application}, series = {IOP Conference Series: Earth and Environmental Science (EES)}, volume = {16}, booktitle = {IOP Conference Series: Earth and Environmental Science (EES)}, number = {1}, publisher = {Institute of Physics Publishing (IOP)}, address = {London [u.a.]}, issn = {1755-1315}, doi = {10.1088/1755-1315/16/1/012014}, pages = {012014/1 -- 012014/4}, year = {2013}, language = {en} } @article{AbulnagaPinkenburgSchiffelsetal.2013, author = {Abulnaga, El-Hussiny and Pinkenburg, Olaf and Schiffels, Johannes and E-Refai, Ahmed and Buckel, Wolfgang and Selmer, Thorsten}, title = {Effect of an Oxygen-Tolerant Bifurcating Butyryl Coenzyme A Dehydrogenase/Electron-Transferring Flavoprotein Complex from Clostridium difficile on Butyrate Production in Escherichia coli}, series = {Journal of bacteriology}, volume = {195}, journal = {Journal of bacteriology}, number = {16}, issn = {1098-5530 [E-Journal]}, pages = {3704 -- 3713}, year = {2013}, language = {en} } @article{Laack2013, author = {Laack, Walter van}, title = {Our world is well ordered in measurement and number : or why natural constants are as they are}, series = {American Journal of Humanities and Social Sciences (AHSS)}, volume = {1}, journal = {American Journal of Humanities and Social Sciences (AHSS)}, number = {4}, issn = {2329-079X}, doi = {10.11634/232907811301390}, pages = {219 -- 221}, year = {2013}, abstract = {All the important natural constants can be logically explained with and derived from the first four ordinal numbers, 1, 2, 3 and 4, its addition to ten and finally the standard values for obviously maximal feasibility Ω and the optimum in our world, the Golden Section (GS), i.e. the number sequences 273 and 618. They both are the first three numbers of irrational results by an arithmetical transformation of simple geometrical relationships by creating multiplicity out of singularity. Both of them show that the infinite is inherent in finiteness and explain in a simple way the smallest deviations and fluctuations between the physical AS-IS state and the obvious spiritual ideal behind: Wherever we look in this world, and especially in important key-positions, we regularly find these sequences. All of the above mentioned numbers so seem to be key players in our world, what can be demonstrated by the derivation of natural constants.}, language = {en} }