@misc{BimboeseNicolayBryketal., author = {Bimb{\"o}se, Martin and Nicolay, Alexander and Bryk, Alexander and Schmidt, Karl-Heinz and Morche, David}, title = {Investigations on intra- and interannual coarse sediment dynamics in a high-mountain catchment}, series = {Zeitschrift f{\"u}r Geomorphologie : Supplementband}, volume = {55}, journal = {Zeitschrift f{\"u}r Geomorphologie : Supplementband}, number = {2}, doi = {10.1127/0372-8854/2011/0055S2-0046}, pages = {67 -- 81}, language = {en} } @misc{TolksdorfKaiserPetretal., author = {Tolksdorf, Johann Friedrich and Kaiser, Knut and Petr, Libor and Herbig, Christoph and Koč{\´a}r, Petr and Heinrich, Susann and Wilke, Franziska D.H. and Theuerkauf, Martin and F{\"u}lling, Alexander and Schubert, Matthias and Schr{\"o}der, Frank and Křiv{\´a}nek, Roman and Schulz, Lars and Bonhage, Alexander and Hemker, Christiane}, title = {Past human impact in a mountain forest: geoarchaeology of a medieval glass production and charcoal hearth site in the Erzgebirge, Germany}, series = {Regional Environmental Change}, volume = {20}, journal = {Regional Environmental Change}, number = {3}, issn = {1436-378X}, doi = {10.1007/s10113-020-01638-1}, pages = {20}, language = {en} } @misc{PfetschFuegenschuhGeissleretal., author = {Pfetsch, Marc E. and F{\"u}genschuh, Armin and Geißler, Bj{\"o}rn and Geißler, Nina and Gollmer, Ralf and Hiller, Benjamin and Humpola, Jesco and Koch, Thorsten and Lehmann, Thomas and Martin, Alexander and Morsi, Antonio and R{\"o}vekamp, Jessica and Schewe, Lars and Schmidt, Martin and Schultz, R{\"u}diger and Schwarz, Robert and Schweiger, Jonas and Stangl, Claudia and Steinbach, Marc C. and Vigerske, Stefan and Willert, Bernhard M.}, title = {Validation of Nominations in Gas Network Optimization: Models, Methods, and Solutions}, series = {Optimization Methods and Software}, volume = {30}, journal = {Optimization Methods and Software}, number = {1}, issn = {1055-6788}, doi = {10.1080/10556788.2014.888426}, pages = {15 -- 53}, language = {en} } @misc{FuegenschuhGeisslerGollmeretal., author = {F{\"u}genschuh, Armin and Geißler, Bj{\"o}rn and Gollmer, Ralf and Hayn, Christine and Henrion, Ren{\´e} and Hiller, Benjamin and Humpola, Jesco and Koch, Thorsten and Lehmann, Thomas and Martin, Alexander and Mirkov, Radoslava and Morsi, Antonio and R{\"o}vekamp, Jessica and Schewe, Lars and Schmidt, Martin and Schultz, R{\"u}diger and Schwarz, Robert and Schweiger, Jonas and Stangl, Claudia and Steinbach, Marc C. and Willert, Bernhard M.}, title = {Mathematical Optimization for Challenging Network Planning Problems in Un- bundled Liberalized Gas Markets}, series = {Energy Systems}, volume = {5}, journal = {Energy Systems}, number = {3}, issn = {1868-3975}, doi = {10.1007/s12667-013-0099-8}, pages = {449 -- 473}, language = {en} } @misc{PeterKarichUllrichetal., author = {Peter, Sebastian and Karich, Alexander and Ullrich, Ren{\´e} and Gr{\"o}be, Glenn and Scheibner, Katrin and Hofrichter, Martin}, title = {Enzymatic one-pot conversion of cyclohexane into cyclohexanone: Comparison of four fungal peroxygenases}, series = {Journal of Molecular Catalysis : B, Enzymatic}, journal = {Journal of Molecular Catalysis : B, Enzymatic}, number = {103}, doi = {10.1016/j.molcatb.2013.09.016}, pages = {47 -- 51}, abstract = {Unspecific peroxygenases (UPO; EC 1.11.2.1) represent a group of secreted heme-thiolate proteins that are capable of catalyzing the mono-oxygenation of diverse organic compounds, using only H2O2 as a co-substrate. Here we show that the four peroxygenases AaeUPO, MroUPO, rCciUPO and rNOVO catalyze the stepwise hydroxylation of cyclohexane to cyclohexanol and cyclohexanone. The catalytic efficiencies (kcat/Km) for the initial hydroxylation were in the same order of magnitude for all four peroxygenases (∼104 M-1 s-1), whereas they differed in the second step. The conversion of cyclohexanol by AaeUPO and rCciUPO was 1-2 orders of magnitude less efficient (∼102 M-1 s-1) than by MroUPO and rNOVO (∼104 M-1 s-1). The highest conversion rate in terms of H2O2 utilization was accomplished by MroUPO under repeated addition of the peroxide (87\% in relation to the total products formed). Using the latter UPO, we successfully established a micro-mixing reaction device (SIMM-V2) for the oxidation of cyclohexane. As cyclohexanone is a chemical of high relevance, for example, as starting material for polymer syntheses or as organic solvent, new enzymatic production pathways for this compound are of interest to complement existing chemical and biotechnological approaches. Stable and versatile peroxygenases, as those presented here, may form a promising biocatalytic platform for the development of such enzyme-based processes.}, language = {en} } @misc{SteffensBeckerAmkreutzetal., author = {Steffens, S. and Becker, C. and Amkreutz, Daniel and Klossek, Andr{\´e} and Kittler, Martin and Chen, Y.-Y. and Schnegg, Alexander and Klingsporn, Max and Abou-Ras, Daniel and Lips, Klaus and Rech, Bernd}, title = {Impact of Dislocations and Dangling Bond Defects on The Electrical Performance of Crystalline Silicon Thin Films}, series = {Applied Physics Letters}, volume = {105}, journal = {Applied Physics Letters}, number = {2}, issn = {1077-3118}, doi = {10.1063/1.4890625}, pages = {022108}, language = {en} } @misc{ReicheKittlerPippeletal., author = {Reiche, Manfred and Kittler, Martin and Pippel, Eckhard and {\"U}bensee, Hartmut and Kosina, Hans and Grill, Alexander and Stanojevic, Zlatan and Baumgartner, Oskar}, title = {Impact of Defect-Induced Strain on Device Properties}, series = {Advanced Engineering Materials}, volume = {19}, journal = {Advanced Engineering Materials}, number = {8}, issn = {1527-2648}, doi = {10.1002/adem.201600736}, pages = {4}, language = {en} } @misc{KarichScheibnerUllrichetal., author = {Karich, Alexander and Scheibner, Katrin and Ullrich, Ren{\´e} and Hofrichter, Martin}, title = {Exploring the catalase activity of unspecific peroxygenases and the mechanism of peroxide-dependent heme destruction}, series = {Journal of Molecular Catalysis B: Enzymatic}, volume = {134}, journal = {Journal of Molecular Catalysis B: Enzymatic}, number = {A}, issn = {1381-1177}, doi = {10.1016/j.molcatb.2016.10.014}, pages = {238 -- 246}, abstract = {The catalase activity of three unspecific peroxygenases (UPOs) from the agaric basidiomycetes Agrocybe aegerita, Coprinopsis cinerea and Marasmius rotula was investigated. The study included analysis of pH dependency of the catalase reaction and H₂O₂ mediated enzyme inactivation as well as experiments on the influence of a second substrate on the course of catalase reaction. Apparent kinetic parameters (Km, kcat) for the catalase activity of UPOs were determined. Inactivation of UPOs by H₂O₂ is discussed with regard to O₂ production and remaining UPO activity. Furthermore formation of biliverdin as heme destruction product was demonstrated along with the formation of UPO compound III as a possible intermediate that forces the destruction process. Radical trapping experiments with methyl benzoate gave indication for the formation of hydroxyl radicals in the presence of excess H₂O₂. Eventually, a plausible pathway of heme destruction has been proposed, proceeding via UPO compound III and subsequent hydroxyl radical formation, which in turn may cause heme bleaching and verdoheme and biliverdin formation.}, language = {en} } @misc{SchulzSkrzypczakSchneideretal., author = {Schulz, Christian M. and Skrzypczak, M. and Schneider, Erich and Hapfelmeier, Alexander and Martin, J. and Kochs, Eberhard F. and Schneider, G.}, title = {Assessment of subjective workload in an anaesthesia simulator environment: reliability and validity}, series = {European Journal of Anaesthesiology}, volume = {28}, journal = {European Journal of Anaesthesiology}, number = {7}, issn = {0265-0215}, pages = {502 -- 505}, language = {en} } @misc{KarichUllrichScheibneretal., author = {Karich, Alexander and Ullrich, Ren{\´e} and Scheibner, Katrin and Hofrichter, Martin}, title = {Fungal unspecific peroxygenases oxidize the majority of organic EPA priority pollutants}, series = {Frontiers in Microbiology}, volume = {8}, journal = {Frontiers in Microbiology}, issn = {1664-302X}, doi = {10.3389/fmicb.2017.01463}, pages = {15}, abstract = {Unspecific peroxygenases (UPOs) are secreted fungal enzymes with promiscuity for oxygen transfer and oxidation reactions. Functionally, they represent hybrids of P450 monooxygenases and heme peroxidases; phylogenetically they belong to the family of heme-thiolate peroxidases. Two UPOs from the basidiomycetous fungi Agrocybe aegerita (AaeUPO) and Marasmius rotula (MroUPO) converted 35 out of 40 compounds listed as EPA priority pollutants, including chlorinated benzenes and their derivatives, halogenated biphenyl ethers, nitroaromatic compounds, polycyclic aromatic hydrocarbons (PAHs) and phthalic acid derivatives. These oxygenations and oxidations resulted in diverse products and-if at all-were limited for three reasons: (i) steric hindrance caused by multiple substitutions or bulkiness of the compound as such (e.g., hexachlorobenzene or large PAHs), (ii) strong inactivation of aromatic rings (e.g., nitrobenzene), and (iii) low water solubility (e.g., complex arenes). The general outcome of our study is that UPOs can be considered as extracellular counterparts of intracellular monooxygenases, both with respect to catalyzed reactions and catalytic versatility. Therefore, they should be taken into consideration as a relevant biocatalytic detoxification and biodegradation tool used by fungi when confronted with toxins, xenobiotics and pollutants in their natural environments.}, language = {en} } @misc{HiltAliranguesNunezBakkeretal., author = {Hilt, Sabine and Alirangues Nu{\~n}ez, Marta M. and Bakker, Elisabeth S. and Blindow, Irmgard and Davidson, Thomas A. and Gillefalk, Mikael and Hansson, Lars-Anders and Janse, Jan H. and Janssen, Annette B. G. and Jeppesen, Erik and Kabus, Timm-Alexander and Kelly, Andrea and K{\"o}hler, Jan and Lauridsen, Torben L. and Mooij, Wolf M. and Noordhuis, Ruurd and Phillips, Geoff and R{\"u}cker, Jacqueline and Schuster, Hans-Heinrich and S{\o}ndergaard, Martin and Teurlincx, Sven and Weyer, Klaus van de and Donk, Ellen van and Waterstraat, Arno and Willby, Nigel and Sayer, Carl D.}, title = {Response of Submerged Macrophyte Communities to External and Internal Restoration Measures in North Temperate Shallow Lakes}, series = {Frontiers in plant science}, volume = {9}, journal = {Frontiers in plant science}, issn = {1664-462X}, doi = {10.3389/fpls.2018.00194}, pages = {24}, language = {en} } @inproceedings{TrautmannOhlendorfSanftletal., author = {Trautmann, Martin and Ohlendorf, Marius and Sanftl, Benedikt and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Dimensioning and comparison of common compensation topologies for IPT systems}, series = {IEEE International Symposium on Circuits and Systems, Baltimore, MD, USA, 2017}, booktitle = {IEEE International Symposium on Circuits and Systems, Baltimore, MD, USA, 2017}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-4673-6853-7}, doi = {10.1109/ISCAS.2017.8050511}, pages = {1 -- 4}, language = {en} } @inproceedings{HaberlSanftlTrautmannetal., author = {Haberl, Matthias and Sanftl, Benedikt and Trautmann, Martin and Weigel, Robert and K{\"o}lpin, Alexander}, title = {A Direct RF-to-Baseband Quadrature Subsampling Receiver Using a Low Cost ADC}, series = {IEEE Radio and Wireless Symposium (RWS 2017), Phoenix, Arizona, USA, 15-18 January 2017}, booktitle = {IEEE Radio and Wireless Symposium (RWS 2017), Phoenix, Arizona, USA, 15-18 January 2017}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5090-3446-8}, doi = {10.1109/RWS.2017.7885970}, pages = {144 -- 146}, language = {en} } @inproceedings{SanftlTrautmannKleinhenzetal., author = {Sanftl, Benedikt and Trautmann, Martin and Kleinhenz, Markus and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Increased Data Rate using Higher-order Digital Modulation for Simultaneous Inductive Data and Power Transfer Systems}, series = {IEEE MTT-S Wireless Power Transfer Conference, Taipeh, Taiwan, 2017}, booktitle = {IEEE MTT-S Wireless Power Transfer Conference, Taipeh, Taiwan, 2017}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5090-4585-3}, doi = {10.1109/WPT.2017.7953843}, pages = {1 -- 3}, language = {en} } @misc{ZeugnerKaiserSchmidtetal., author = {Zeugner, Alexander and Kaiser, Martin and Schmidt, Peer and Menshchikova, Tatiana V. and Rusinov, Igor P. and Markelov, Anton V. and Van den Broek, Wouter and Chulkov, Evgueni V. and Doert, Thomas and Ruck, Michael and Isaeva, Anna}, title = {Modular Design with 2D Topological-Insulator Building Blocks: Optimized Synthesis and Crystal Growth and Crystal and Electronic Structures of BiₓTeI (x = 2, 3)}, series = {Chemistry of Materials}, volume = {29}, journal = {Chemistry of Materials}, number = {3}, issn = {0897-4756}, doi = {10.1021/acs.chemmater.6b05038}, pages = {1321 -- 1337}, abstract = {Structural engineering of topological bulk materials is systematically explored with regard to the incorporation of the buckled bismuth layer [Bi₂], which is a 2D topological insulator per se, into the layered BiTeI host structure. The previously known bismuth telluride iodides, BiTeI and Bi₂TeI, offer physical properties relevant for spintronics. Herewith a new cousin, Bi₃TeI (sp.gr. R3m, a = 440.12(2) pm, c = 3223.1(2) pm), joins the ranks and expands this structural family. Bi₃TeI = [Bi₂][BiTeI] represents a stack with strictly alternating building blocks. Conditions for reproducible synthesis and crystal-growth of Bi₂TeI and Bi₃TeI are ascertained, thus yielding platelet-like crystals on the millimeter size scale and enabling direct measurements. The crystal structures of Bi₂TeI and Bi₃TeI are examined by X-ray diffraction and electron microscopy. DFT calculations predict metallic properties of Bi₃TeI and an unconventional surface state residing on various surface terminations. This state emerges as a result of complex hybridization of atomic states due to their strong intermixing. Our study does not support the existence of new stacking variants BiₓTeI with x > 3; instead, it indicates a possible homogeneity range of Bi₃TeI. The series BiTeI-Bi₂TeI-Bi₃TeI illustrates the influence of structural modifications on topological properties.}, language = {en} } @misc{HieroldWeigelKoelpin, author = {Hierold, Martin and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Assessment of Transmitter Initiated Wake-Up Radio Versus Pure Wake-Up Receiver Decoding}, series = {IEEE Microwave and Wireless Components Letters}, volume = {27}, journal = {IEEE Microwave and Wireless Components Letters}, number = {4}, issn = {1531-1309}, doi = {10.1109/LMWC.2017.2678446}, pages = {413 -- 415}, language = {en} } @misc{BambachSizovaSviridovetal., author = {Bambach, Markus and Sizova, Irina and Sviridov, Alexander and Stendal, Johan Andreas and G{\"u}nther, Martin}, title = {Batch Processing in Preassembled Die Sets - A New Process Design for Isothermal Forging of Titanium Aluminides}, series = {Journal of Manufacturing and Materials Processing}, volume = {2}, journal = {Journal of Manufacturing and Materials Processing}, number = {1}, issn = {2504-4494}, doi = {doi:10.3390/jmmp2010001}, pages = {14}, language = {en} } @misc{FrankReisslandLurzetal., author = {Frank, Martin and Reißland, Torsten and Lurz, Fabian and V{\"o}lkel, Matthias and Lambrecht, Franziska and Kiefl, Stefan and Ghesquiere, Pol and Ng, Herman Jalli and Kissinger, Dietmar and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Antenna and Package Design for 61 GHz and 122 GHz Radar Sensors in Embedded Wafer-Level Ball Grid Array Technology}, series = {IEEE Transactions on Microwave Theory and Techniques}, journal = {IEEE Transactions on Microwave Theory and Techniques}, issn = {0018-9480}, doi = {10.1109/TMTT.2018.2873368}, pages = {1 -- 13}, language = {en} } @misc{FrankLurzWeigeletal., author = {Frank, Martin and Lurz, Fabian and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Compact low-cost substrate integrated waveguide fed antenna for 122 GHz radar applications}, series = {International Journal of Microwave and Wireless Technologies}, volume = {11}, journal = {International Journal of Microwave and Wireless Technologies}, number = {4}, issn = {1759-0795}, doi = {10.1017/S1759078719000072}, pages = {1 -- 5}, language = {en} } @misc{TrautmannSanftlWeigeletal., author = {Trautmann, Martin and Sanftl, Benedikt and Weigel, Robert and K{\"o}lpin, Alexander}, title = {Simultaneous Inductive Power and Data Transmission System for Smart Applications}, series = {IEEE Circuits and Systems Magazine}, volume = {19}, journal = {IEEE Circuits and Systems Magazine}, number = {3}, issn = {1531-636X}, doi = {10.1109/MCAS.2019.2924508}, pages = {23 -- 33}, language = {en} }