@article{OertelBung2015, author = {Oertel, Mario and Bung, Daniel Bernhard}, title = {Stability and scour development of bed material on crossbar block ramps}, series = {International journal of sediment research}, volume = {30}, journal = {International journal of sediment research}, number = {4}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1001-6279}, doi = {10.1016/j.ijsrc.2014.12.003}, pages = {344 -- 350}, year = {2015}, abstract = {Block ramps are ecologically oriented drop structures with adequate energy dissipation and partially moderate flow velocities. A special case is given with crossbar block ramps, where the upstream and downstream level difference is reduced by a series of basins. To prevent the total structure from failing, the stability of single boulders within the crossbars and the bed material in between must be guaranteed. The present paper addresses the stability of bed material and scour development for various flow regimes. Any bed material erosion may affect the stability of the crossbar boulders, which in turn can result in major damages of the ramp. Therefore new design approaches are developed to choose an appropriate bed material size and to avoid failures of crossbar block ramp structures.}, language = {en} } @incollection{StroetmannLohse2015, author = {Stroetmann, Richard and Lohse, Wolfram}, title = {Stahlbau}, series = {Wendehorst bautechnische Zahlentafeln / 35. Auflage}, booktitle = {Wendehorst bautechnische Zahlentafeln / 35. Auflage}, editor = {Vismann, Ulrich}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-01689-0 ; 978-3-410-24199-7}, doi = {10.1007/978-3-658-01689-0_13}, pages = {657 -- 859}, year = {2015}, abstract = {Es ist zwischen St{\"a}hlen bis S460 und solchen mit h{\"o}herer Streckgrenze zu unterscheiden. St{\"a}hle bis S460 sind auch f{\"u}r die plastische Tragwerksberechnung nach dem Fließgelenkverfahren zugelassen. Bei St{\"a}hlen oberhalb S460 bis S700 ist neben der elastischen eine nichtlineare plastische Tragwerksberechnung unter Ber{\"u}cksichtigung von Teilplastizierungen von Bauteilen in Fließzonen m{\"o}glich.}, language = {de} } @incollection{StroetmannLohse2015, author = {Stroetmann, Richard and Lohse, Wolfram}, title = {Stahlbau}, series = {Wendehorst Beispiele aus der Baupraxis. / 5. Auflage}, booktitle = {Wendehorst Beispiele aus der Baupraxis. / 5. Auflage}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-01689-0 ; 978-3-410-24199-7}, doi = {10.1007/978-3-658-01681-4_10}, pages = {323 -- 431}, year = {2015}, language = {de} } @incollection{Vismann2015, author = {Vismann, Ulrich}, title = {Stahlbeton und Spannbeton nach Eurocode 2}, series = {Wendehorst bautechnische Zahlentafeln / hrsg. von Ulrich Vismann. Ernst Biener ... 35. Aufl.}, booktitle = {Wendehorst bautechnische Zahlentafeln / hrsg. von Ulrich Vismann. Ernst Biener ... 35. Aufl.}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-01689-0 ; 978-3-410-24199-7}, doi = {10.1007/978-3-658-01689-0_12}, pages = {497 -- 655}, year = {2015}, language = {de} } @incollection{VismannSchueller2015, author = {Vismann, Ulrich and Sch{\"u}ller, Michael}, title = {Stahlbetonbau}, series = {Wendehorst Beispiele aus der Baupraxis. / 5. Auflage}, booktitle = {Wendehorst Beispiele aus der Baupraxis. / 5. Auflage}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-01680-7 ; 978-3-658-01681-4}, doi = {10.1007/978-3-658-01681-4_9}, pages = {243 -- 322}, year = {2015}, abstract = {Das Kapitel Stahlbetonbau besteht aus einer Formelsammlung (Teil A) sowie einem Praxisbeispiel (Teil B). In dem Praxisbeispiel werden exemplarisch die erforderlichen Rechenschritte und Nachweise zur Bemessung im GZT und GZG nach Eurocode 2 [1] vorgestellt. Die Hinweise im Text beziehen sich, soweit nicht explizit erw{\"a}hnt, auf Wendehorst, Bautechnische Zahlentafeln, 35. Auflage, „Stahlbeton- und Spannbetonbau nach Eurocode 2" [2]. Die zum Praxisbeispiel zugeh{\"o}rigen Konstruktions- und Bewehrungszeichnungen stehen im Onlineportal zu diesem Buch zum kostenlosen Download bereit (siehe unter www.springer.com).}, language = {de} } @article{DoeringRegerKuhnhenneetal.2015, author = {D{\"o}ring, Bernd and Reger, Vitali and Kuhnhenne, Markus and Feldmann, Markus and Kesti, Jyrki and Lawson, Mark and Botti, Andrea}, title = {Steel solutions for enabling zero-energy buildings}, series = {Steel Construction - Design and Research}, volume = {8}, journal = {Steel Construction - Design and Research}, number = {3}, publisher = {Ernst \& Sohn}, address = {Berlin}, issn = {1867-0539}, doi = {10.1002/stco.201510029}, pages = {194 -- 200}, year = {2015}, language = {en} } @incollection{ChansonBungMatos2015, author = {Chanson, Hubert and Bung, Daniel Bernhard and Matos, J.}, title = {Stepped spillways and cascades}, series = {Energy dissipation in hydraulic structures / Hubert Chanson (ed.)}, booktitle = {Energy dissipation in hydraulic structures / Hubert Chanson (ed.)}, publisher = {CRC Press}, address = {Boca Raton, Fla. [u.a.]}, isbn = {978-1-138-02755-8 (print) ; 978-1-315-68029-3 (e-Book)}, pages = {45 -- 64}, year = {2015}, language = {en} } @article{OberlaenderKirchnerKeusgenetal.2015, author = {Oberl{\"a}nder, Jan and Kirchner, Patrick and Keusgen, Michael and Sch{\"o}ning, Michael Josef}, title = {Strategies in developing thin-film sensors for monitoring aseptic food processes : Theoretical considerations and investigations of passivation materials}, series = {Electrochimica Acta}, volume = {183}, journal = {Electrochimica Acta}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0013-4686}, doi = {10.1016/j.electacta.2015.06.126}, pages = {130 -- 136}, year = {2015}, abstract = {The sterilization of packages in aseptic food processes is highly significant to maintain a consumer-safe product with extended shelf-life. Today, the sterilization of food packages is predominantly accomplished by gaseous hydrogen peroxide (H2O2) in combination with heat. In order to monitor this sterilization process, calorimetric gas sensors as differential set-up of two platinum temperature sensors representing a catalytically active (additionally deposition of MnO2) and a passive segment have been recently developed. The temperature rise of the exothermic decomposition serves as an indicator of the present H2O2 concentration. In the present work, a theoretical approach considering the sensor's thermochemistry and physical transport phenomena was formulated to evaluate the temperature rise based on the energy content of gaseous H2O2. In a further part of this work, three polymers have been analyzed with respect to their application as passivation materials. The examined polymers are photoresist SU-8, perfluoroalkoxy (PFA) and fluorinated ethylene propylene (FEP). Thermal analyses by means of differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) have been conducted to determine the operation limits of the polymers. The overall chemical resistance and stability of the polymers against the harsh environmental conditions during the sterilization process have been examined by attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR).}, language = {en} } @article{OberlaenderJildehKirchneretal.2015, author = {Oberl{\"a}nder, Jan and Jildeh, Zaid B. and Kirchner, Patrick and Wendeler, Luisa and Bromm, Alexander and Iken, Heiko and Wagner, Patrick and Keusgen, Michael and Sch{\"o}ning, Michael Josef}, title = {Study of Interdigitated Electrode Arrays Using Experiments and Finite Element Models for the Evaluation of Sterilization Processes}, series = {Sensors}, volume = {15}, journal = {Sensors}, number = {10}, publisher = {MDPI}, address = {Basel}, issn = {1424-8220}, doi = {10.3390/s151026115}, pages = {26115 -- 26127}, year = {2015}, abstract = {In this work, a sensor to evaluate sterilization processes with hydrogen peroxide vapor has been characterized. Experimental, analytical and numerical methods were applied to evaluate and study the sensor behavior. The sensor set-up is based on planar interdigitated electrodes. The interdigitated electrode structure consists of 614 electrode fingers spanning over a total sensing area of 20 mm2. Sensor measurements were conducted with and without microbiological spores as well as after an industrial sterilization protocol. The measurements were verified using an analytical expression based on a first-order elliptical integral. A model based on the finite element method with periodic boundary conditions in two dimensions was developed and utilized to validate the experimental findings.}, language = {en} } @inproceedings{SrivastavaKnolleSchnugetal.2015, author = {Srivastava, Alok and Knolle, F. and Schnug, E. and Scherer, Ulrich W.}, title = {Study of Trace Elements in Water Bodies of the Harz Mts. Region, Germany using Total Reflection X Ray Fluorescence (TXRF)}, series = {DAE-BRNS 12th National Symposium on Nuclear and Radiochemistry NUCAR 2015, Feb. 9-13, Mumbai, India, Mumbai, India; 02/2015}, booktitle = {DAE-BRNS 12th National Symposium on Nuclear and Radiochemistry NUCAR 2015, Feb. 9-13, Mumbai, India, Mumbai, India; 02/2015}, pages = {355 -- 356}, year = {2015}, language = {de} }