@misc{BuchananLewisParisetal., author = {Buchanan, Erin M. and Lewis, Savannah C. and Paris, Bastien and Forscher, Patrick S. and Pavlacic, Jeffrey M. and Beshears, Julie E. and Drexler, Shira Meir and Gourdon-Kanhukamwe, Am{\´e}lie and Mallik, Peter R and Silan, Miguel Alejandro A. and Miller, Jeremy K. and IJzerman, Hans and Moshontz, Hannah and Beaudry, Jennifer L. and Suchow, Jordan W. and Chartier, Christopher R. and Coles, Nicholas A. and Sharifian, MohammadHasan and Todsen, Anna Louise and Levitan, Carmel A. and Azevedo, Fl{\´a}vio and Legate, Nicole and Heller, Blake and Rothman, Alexander J. and Dorison, Charles A. and Gill, Brian P. and Wang, Ke and Rees, Vaughan W. and Gibbs, Nancy and Goldenberg, Amit and Thi Nguyen, Thuy-vy and Gross, James J. and Kaminski, Gwena{\^e}l and von Bastian, Claudia C. and Paruzel-Czachura, Mariola and Mosannenzadeh, Farnaz and Azouaghe, Soufian and Bran, Alexandre and Ruiz-Fernandez, Susana and Santos, Anabela Caetano and Reggev, Niv and Zickfeld, Janis H. and Akkas, Handan and Pantazi, Myrto and Ropovik, Ivan and Korbmacher, Max and Arriaga, Patr{\´i}cia and Gjoneska, Biljana and Warmelink, Lara and Alves, Sara G. and de Holanda Coelho, Gabriel Lins and Stieger, Stefan and Schei, Vidar and Hanel, Paul H. P. and Szaszi, Barnabas and Fedotov, Maksim and Antfolk, Jan and Marcu, Gabriela-Mariana and Schr{\"o}tter, Jana and Kunst, Jonas R. and Geiger, Sandra J. and Adetula, Adeyemi and Kocalar, Halil Emre and Kielińska, Julita and Kačm{\´a}r, Pavol and Bokkour, Ahmed and Galindo-Caballero, Oscar J. and Djamai, Ikhlas and P{\"o}ntinen, Sara Johanna and AGESIN, Bamikole Emmanuel and Jerns{\"a}ther, Teodor and Urooj, Anum and Rachev, Nikolay R. and Koptjevskaja-Tamm, Maria and Kurfal{\i}, Murathan and Pit, Ilse L. and Li, Ranran and {\c{C}}oksan, Sami and Dubrov, Dmitrii and Paltrow, Tamar Elise and Ban{\´i}k, Gabriel and Korobova, Tatiana and Studzinska, Anna and Jiang, Xiaoming and Aruta, John Jamir Benzon R. and Vintr, J{\´a}chym and Chiu, Faith and Kaliska, Lada and Berkessel, Jana B. and T{\"u}mer, Murat and Morales-Izquierdo, Sara and Chuan-Peng, Hu and Vezirian, Kevin and Rosa, Anna Dalla and Bialobrzeska, Olga and Vasilev, Martin R. and Beitner, Julia and K{\´a}cha, Ondřej and Žuro, Barbara and Westerlund, Minja and Nedelcheva-Datsova, Mina and Findor, Andrej and Krupić, Dajana and Kowal, Marta and Askelund, Adrian Dahl and Pourafshari, Razieh and Đorđević, Jasna Milošević and Schmidt, Nadya-Daniela and Baklanova, Ekaterina and Szala, Anna and Zakharov, Ilya and Vranka, Marek A. and Ihaya, Keiko and Grano, Caterina and Cellini, Nicola and Białek, Michał and Anton-Boicuk, Lisa and Dalgar, Ilker and Ad{\i}g{\"u}zel, Arca and Verharen, Jeroen P. H. and Maturan, Princess Lovella G. and Kassianos, Angelos P. and Oliveira, Raquel and Čadek, Martin and Adoric, Vera Cubela and {\"O}zdoğru, Asil Ali and Sverdrup, Therese E. and Aczel, Balazs and Zambrano, Danilo and Ahmed, Afroja and Tamnes, Christian K. and Yamada, Yuki and Volz, Leonhard and Sunami, Naoyuki and Suter, Lilian and Vieira, Luc and Groyecka-Bernard, Agata and Kamburidis, Julia Arhondis and Reips, Ulf-Dietrich and Harutyunyan, Mikayel and Adetula, Gabriel Agboola and Allred, Tara Bulut and Barzykowski, Krystian and Antazo, Benedict G and Zsido, Andras N. and Šakan, Dušana Dušan and Cyrus-Lai, Wilson and Ahlgren, Lina Pernilla and Hruška, Matej and Vega, Diego and Manunta, Efisio and Mokady, Aviv and Capizzi, Mariagrazia and Martončik, Marcel and Say, Nicolas and Filip, Katarzyna and Vilar, Roosevelt and Staniaszek, Karolina and Vdovic, Milica and Adamkovic, Matus and Johannes, Niklas and Hajdu, Nandor and Cohen, Noga and Overkott, Clara and Krupić, Dino and Hubena, Barbora and Nilsonne, Gustav and Mioni, Giovanna and Solorzano, Claudio Singh and Ishii, Tatsunori and Chen, Zhang and Kushnir, Elizaveta and Karaarslan, Cemre and Ribeiro, Rafael R. and Khaoudi, Ahmed and Kossowska, Małgorzata and Bavolar, Jozef and Hoyer, Karlijn and Roczniewska, Marta and Karababa, Alper and Becker, Maja and Monteiro, Renan P. and Kunisato, Yoshihiko and Metin-Orta, Irem and Adamus, Sylwia and Kozma, Luca and Czarnek, Gabriela and Domurat, Artur and Štrukelj, Eva and Alvarez, Daniela Serrato and Parzuchowski, Michal and Massoni, S{\´e}bastien and Czamanski-Cohen, Johanna and Pronizius, Ekaterina and Muchembled, Fany and van Schie, Kevin and Sa{\c{c}}akl{\i}, Asl{\i} and Hristova, Evgeniya and Kuzminska, Anna O. and Charyate, Abdelilah and Bijlstra, Gijsbert and Afhami, Reza and Majeed, Nadyanna M. and Musser, Erica D. and Sirota, Miroslav and Ross, Robert M. and Yeung, Siu Kit and Papadatou-Pastou, Marietta and Foroni, Francesco and Almeida, In{\^e}s A. T. and Grigoryev, Dmitry and Lewis, David M. G. and Holford, Dawn L. and Janssen, Steve M. J. and Tatachari, Srinivasan and Batres, Carlota and Olofsson, Jonas K. and Daches, Shimrit and Belaus, Anabel and Pfuhl, Gerit and Corral-Frias, Nadia Sarai and Sousa, Daniela and R{\"o}er, Jan Philipp and Isager, Peder Mortvedt and Godbersen, Hendrik and Walczak, Radoslaw B. and Van Doren, Natalia and Ren, Dongning and Gill, Tripat and Voracek, Martin and DeBruine, Lisa M. and Anne, Michele and Očovaj, Sanja Batić and Thomas, Andrew G. and Arvanitis, Alexios and Ostermann, Thomas and Wolfe, Kelly and Arinze, Nwadiogo Chisom and Bundt, Carsten and Lamm, Claus and Calin-Jageman, Robert J and Davis, William E. and Karekla, Maria and Zorjan, Saša and Jaremka, Lisa M. and Uttley, Jim and Hricova, Monika and Koehn, Monica A and Kiselnikova, Natalia and Bai, Hui and Krafnick, Anthony J. and Balci, Busra Bahar and Ballantyne, Tonia and Lins, Samuel and Vally, Zahir and Esteban-Serna, Celia and Schmidt, Kathleen and Macapagal, Paulo Manuel L. and Szwed, Paulina and Zdybek, Przemysław Marcin and Moreau, David and Collins, W. Matthew and Joy-Gaba, Jennifer A. and Vilares, Iris and Tran, Ulrich S. and Boudesseul, Jordane and Albayrak-Aydemir, Nihan and Dixson, Barnaby James Wyld and Perillo, Jennifer T and Ferreira, Ana and Westgate, Erin C. and Aberson, Christopher L. and Arinze, Azuka Ikechukwu and Jaeger, Bastian and Butt, Muhammad Mussaffa and Silva, Jaime R. and Storage, Daniel Shafik and Janak, Allison P and Jim{\´e}nez-Leal, William and Soto, Jose A. and Sorokowska, Agnieszka and McCarthy, Randy and Tullett, Alexa M and Frias-Armenta, Martha and Ribeiro, Matheus Fernando Felix and Hartanto, Andree and Forbes, Paul A. G. and Willis, Megan L. and del Carmen Tejada R, Mar{\´i}a and Torres, Adriana Julieth Olaya and Stephen, Ian D and Vaidis, David C. and de la Rosa-G{\´o}mez, Anabel and Yu, Karen and Sutherland, Clare A. M. and Manavalan, Mathi and Behzadnia, Behzad and Urban, Jan and Baskin, Ernest and McFall, Joseph P. and Ogbonnaya, Chisom Esther and Fu, Cynthia H. Y. and Rahal, Rima-Maria and Ndukaihe, Izuchukwu L. G. and Hostler, Thomas J. and Kappes, Heather Barry and Sorokowski, Piotr and Khosla, Meetu and Lazarevic, Ljiljana B. and Eudave, Luis and Vilsmeier, Johannes K. and Luis, Elkin O. and Muda, Rafał and Agadullina, Elena and C{\´a}rcamo, Rodrigo A. and Reeck, Crystal and Anjum, Gulnaz and Venegas, M{\´o}nica Camila Toro and Misiak, Michal and Ryan, Richard M. and Nock, Nora L. and Travaglino, Giovanni A. and Mensink, Michael C. and Feldman, Gilad and Wichman, Aaron L. and Chou, Weilun and Ziano, Ignazio and Seehuus, Martin and Chopik, William J. and Kung, Franki Y. H. and Carpentier, Joelle and Vaughn, Leigh Ann and Du, Hongfei and Xiao, Qinyu and Lima, Tiago J. S. and Noone, Chris and Onie, Sandersan and Verbruggen, Frederick and Radtke, Theda and Primbs, Maximilian A.}, title = {The psychological science accelerator's COVID-19 rapid-response dataset}, series = {Scientific Data}, volume = {10}, journal = {Scientific Data}, number = {1}, publisher = {Springer Science and Business Media LLC}, issn = {2052-4463}, doi = {10.1038/s41597-022-01811-7}, pages = {1 -- 15}, language = {en} } @misc{BambachFuegenschuhBuhletal., author = {Bambach, Markus and F{\"u}genschuh, Armin and Buhl, Johannes and Jensch, Felix and Schmidt, Johannes}, title = {Mathematical Modeling and Optimization for Powder-Based Additive Manufacturing}, series = {Procedia Manufacturing; Part of Special issue: 23rd International Conference on Material Forming}, volume = {47}, journal = {Procedia Manufacturing; Part of Special issue: 23rd International Conference on Material Forming}, editor = {Bambach, Markus}, issn = {2351-9789}, doi = {10.1016/j.promfg.2020.04.158}, pages = {1159 -- 1163}, language = {en} } @misc{BaehrBuhlRadowetal., author = {B{\"a}hr, Martin and Buhl, Johannes and Radow, Georg and Schmidt, Johannes and Bambach, Markus and Breuß, Michael and F{\"u}genschuh, Armin}, title = {Stable honeycomb structures and temperature based trajectory optimization for wire-arc additive manufacturing}, series = {Optimization and Engineering}, volume = {22}, journal = {Optimization and Engineering}, number = {2}, issn = {1573-2924}, doi = {10.1007/s11081-020-09552-5}, pages = {913 -- 974}, abstract = {We consider two mathematical problems that are connected and occur in the layer-wise production process of a workpiece using wire-arc additive manufacturing. As the first task, we consider the automatic construction of a honeycomb structure, given the boundary of a shape of interest. In doing this, we employ Lloyd's algorithm in two different realizations. For computing the incorporated Voronoi tesselation we consider the use of a Delaunay triangulation or alternatively, the eikonal equation. We compare and modify these approaches with the aim of combining their respective advantages. Then in the second task, to find an optimal tool path guaranteeing minimal production time and high quality of the workpiece, a mixed-integer linear programming problem is derived. The model takes thermal conduction and radiation during the process into account and aims to minimize temperature gradients inside the material. Its solvability for standard mixed-integer solvers is demonstrated on several test-instances. The results are compared with manufactured workpieces.}, language = {en} } @book{BaehrBuhlRadowetal., author = {B{\"a}hr, Martin and Buhl, Johannes and Radow, Georg and Schmidt, Johannes and Bambach, Markus and Breuß, Michael and F{\"u}genschuh, Armin}, title = {Stable honeycomb structures and temperature based trajectory optimization for wire-arc additive manufacturing}, address = {Cottbus}, doi = {10.26127/btuopen-5079}, pages = {49}, language = {en} } @book{SchmidtBuhlFuegenschuh, author = {Schmidt, Johannes and Buhl, Johannes and F{\"u}genschuh, Armin}, title = {A finite element approach for trajectory optimization in Wire-Arc Additive Manufacturing}, address = {Cottbus}, doi = {10.26127/BTUOpen-5575}, pages = {12}, language = {en} } @techreport{BeisegelBuhlIzaretal., author = {Beisegel, Jesse and Buhl, Johannes and Izar, Rameez and Schmidt, Johannes and Bambach, Markus and F{\"u}genschuh, Armin}, title = {Mixed-integer programming for additive manufacturing}, editor = {F{\"u}genschuh, Armin}, address = {Cottbus}, doi = {10.26127/BTUOpen-5731}, pages = {28}, language = {en} } @incollection{BeisegelBuhlIsraretal., author = {Beisegel, Jesse and Buhl, Johannes and Israr, Rameez and Schmidt, Johannes and Bambach, Martin and F{\"u}genschuh, Armin}, title = {Mixed-Integer Programming Models for Two Metal Additive Manufacturing Methods}, series = {Mathematical Methods for Objects Reconstruction}, booktitle = {Mathematical Methods for Objects Reconstruction}, editor = {Cristiani, Emiliano and Falcone, Maurizio and Tozza, Silvia}, publisher = {Springer}, address = {Heidelberg}, isbn = {978-981-9907-75-5}, pages = {121 -- 155}, language = {en} } @incollection{WeidnerRingelSchmidt, author = {Weidner, Silke and Ringel, Johannes and Schmidt, Helga}, title = {"time-lapse-photography" in Plagwitz - Ein Stadtteil im Wandel}, series = {Der Leipzig Atlas : unterwegs in einer weltoffenen Stadt am Knotenpunkt zwischen West- und Osteuropa}, booktitle = {Der Leipzig Atlas : unterwegs in einer weltoffenen Stadt am Knotenpunkt zwischen West- und Osteuropa}, publisher = {Emons-Verlag}, address = {K{\"o}ln}, isbn = {3-89705-269-5}, pages = {158 -- 159}, language = {de} } @misc{ChunSchmidtKucketal., author = {Chun, K. R. Julian and Schmidt, Boris and Kuck, Karl-Heinz and Andresen, Dietrich and Willems, Stefan and Spitzer, Stefan G. and Hoffmann, Ellen and Schumacher, Burghard and Eckardt, Lars and Seidl, Karlheinz and J{\"u}nger, Claus and Horack, Martin and Brachmann, Johannes and Senges, Jochen}, title = {Catheter ablation of atrial fibrillation in the young}, series = {Clinical Research in Cardiology}, volume = {102}, journal = {Clinical Research in Cardiology}, number = {6}, issn = {1861-0684}, doi = {10.1007/s00392-013-0553-6}, pages = {459 -- 468}, language = {en} } @techreport{FuegenschuhMuellenstedtSchmidt, author = {F{\"u}genschuh, Armin and M{\"u}llenstedt, Daniel and Schmidt, Johannes}, title = {Mission Planning for Unmanned Aerial Vehicles}, issn = {2627-6100}, doi = {10.26127/BTUOpen-4828}, pages = {28}, language = {en} } @misc{BleicherSchauerJiraseketal., author = {Bleicher, Achim and Schauer, Thomas and Jirasek, Robert and H{\"o}ltke, Tim and Zhang, Yangwen and Marker, Paul and Wulff, Wulf and Manfrecola, Johannes and Schmidt, Therese}, title = {Hybride Konstruktionen an der BTU Cottbus-Senftenberg}, series = {Bautechnik}, volume = {98}, journal = {Bautechnik}, number = {12}, issn = {1437-0999}, doi = {10.1002/bate.202100056}, pages = {907 -- 920}, abstract = {Die angestrebten Ziele einer Ressourcen- und Klimaneutralit{\"a}t erfordern ein radikaleres Umdenken der Bauschaffenden, das mit einer noch viel st{\"a}rkeren Sensibilisierung der Auftraggeber f{\"u}r die Auswirkungen des Material- und Energieverbrauchs im Bausektor verbunden ist. Ein Ansatz, um diese Ziele zu erreichen, sind hybride Konstruktionen, in denen unterschiedliche Materialien, Elemente, Funktionen und Technologien auf mehreren Konstruktionsebenen ressourcen- und energieeffizient kombiniert sowie im Fall eines R{\"u}ckbaus sortenrein rezykliert werden. Dieser anspruchsvolle Ansatz ist von Beginn an erkl{\"a}rtes Ziel des Lehrstuhls Hybride Konstruktionen - Massivbau an der BTU Cottbus-Senftenberg und zieht sich durch alle Lehr- und Forschungsaktivit{\"a}ten. Mit ausgew{\"a}hlten Forschungsprojekten werden Motivation und Methoden hybrider Konstruktionen sowie deren Potenzial f{\"u}r ressourcen- und klimaneutrale Konstruktionen anhand von Prototypen aufgezeigt. Hierbei steht neben der {\"o}kologischen Weiterentwicklung klassischer hybrider Konstruktionen aus nachwachsenden und rezyklierten Rohstoffen, bspw. Holz und Recyclingbeton, auch die Entwicklung aktiver hybrider Konstruktionen im Fokus. Die gezielte Integration von aktiven Technologien wie Sensorik, Aktuatorik und Regelungstechnik erm{\"o}glicht multifunktionale Konstruktionen, einen hohen Nutzungskomfort, einen geringeren Rohstoffverbrauch bis hin zur Energiegewinnung aus dynamischen Einwirkungen.}, language = {de} } @book{SchmidtFuegenschuh, author = {Schmidt, Johannes and F{\"u}genschuh, Armin}, title = {A two-time-level model for mission and flight planning of an inhomogeneous fleet of unmanned aerial vehicles}, address = {Cottbus}, doi = {10.26127/BTUOpen-5461}, pages = {40}, language = {en} } @book{SchmidtFuegenschuh, author = {Schmidt, Johannes and F{\"u}genschuh, Armin}, title = {Planning inspection flights with an inhomogeneous fleet of micro aerial vehicles}, address = {Cottbus}, doi = {10.26127/BTUOpen-5656}, pages = {16}, language = {en} } @misc{BoehlerRosencrantzWolfetal., author = {B{\"o}hler, Stefan and Rosencrantz, Sophia and Wolf, Karina and Heinemann, Robert and Schmidt, Peer and Ganster, Johannes and B{\"u}sse, Thomas and Balko, Jens and Rosencrantz, Ruben R.}, title = {Active protease formulation in commodity polymers withstands melt processing into compounds and blown films}, series = {Materials Today Communications}, volume = {34}, journal = {Materials Today Communications}, issn = {2352-4928}, doi = {10.1016/j.mtcomm.2022.105018}, pages = {1 -- 9}, abstract = {Integrating enzymes into thermoplastic polymers is challenging due to their lack of robustness with respect to temperature and shear fields during conventional melt processing. In the present study, blown films from low-density polyethylene (LDPE) were prepared containing a technical protease from Bacillus sp. First, LDPE/protease compounds were produced followed by blown film extrusion, both processes at melt mass temperatures of 130 °C or higher. Enzyme activity was proven, both for the LDPE/protease compound and the blown film. The highest enzyme activity in the compound was determined for processing at 132 °C and a screw speed of 75 rpm. The influence of melt temperature and shear fields was studied in detail. Enzyme activities were determined for melt temperatures up to 160 °C and for screw speeds ranging from 75 to 300 rpm during compounding by twin-screw extrusion. The process was also applied for biobased and biodegradable polyesters, where similar protease activity after compounding was verified. Electron microscopy, X-ray diffraction, nuclear magnetic resonance spectroscopy and differential scanning calorimetry served to analyze components and morphology of the enzyme formulation used here. It is proposed that the porous morphology of the protease particles is beneficial for the enzyme to remain active after processing. Additionally, the polymer matrix surrounding the particles protects the protease at elevated temperatures, which can be attributed to thermal insulation. Thus, the right combination of a suited technical enzyme formulation with appropriate mild melt compounding conditions allows enzymes to be incorporated into thermoplastics and retain their activity. This opens the way to use the abundant biological functions of enzymes in thermoplastic applications.}, language = {en} } @incollection{FuegenschuhMarahrensJohannsmannetal., author = {F{\"u}genschuh, Armin and Marahrens, S{\"o}nke and Johannsmann, Leonie M. and Matuszewski, Sandra and M{\"u}llenstedt, Daniel and Schmidt, Johannes}, title = {Using Computer-Generated Virtual Realities, Operations Research, and Board Games for Conflict Simulations}, series = {Simulation and Wargaming}, booktitle = {Simulation and Wargaming}, editor = {Turnitsa, Charles and Blais, Curtis Blais and Tolk, Andreas}, publisher = {John Wiley \& Sons, Inc.}, address = {Hoboken, NJ}, isbn = {978-1-119-60478-5}, doi = {10.1002/9781119604815}, pages = {273 -- 287}, language = {en} } @misc{SchmidtFuegenschuh, author = {Schmidt, Johannes and F{\"u}genschuh, Armin}, title = {Trajectory optimization for arbitrary layered geometries in wire-arc additive manufacturing}, series = {Optimization and Engineering}, volume = {25}, journal = {Optimization and Engineering}, issn = {1573-2924}, doi = {10.1007/s11081-023-09813-z}, pages = {529 -- 553}, language = {en} } @misc{SchmidtFuegenschuh, author = {Schmidt, Johannes and F{\"u}genschuh, Armin}, title = {A two-time-level model for mission and flight planning of an inhomogeneous fleet of unmanned aerial vehicles}, series = {Computational Optimization and Applications}, volume = {85}, journal = {Computational Optimization and Applications}, number = {1}, issn = {1573-2894}, doi = {10.1007/s10589-023-00450-x}, pages = {293 -- 335}, language = {en} } @misc{SchmidtFuegenschuh, author = {Schmidt, Johannes and F{\"u}genschuh, Armin}, title = {Temperature-Based Trajectory Planning for Surfaces in Wire- Arc Additive Manufacturing}, series = {Operations Research Proceedings 2022 : Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), Karlsruhe, Germany, September 6-9, 2022}, journal = {Operations Research Proceedings 2022 : Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), Karlsruhe, Germany, September 6-9, 2022}, editor = {Grothe, Oliver and Nickel, Stefan and Rebennack, Steffen and Stein, Oliver}, publisher = {Springer}, address = {Heidelberg}, isbn = {978-3-031-24906-8}, pages = {539 -- 545}, language = {en} } @techreport{SchmidtFuegenschuh, author = {Schmidt, Johannes and F{\"u}genschuh, Armin}, title = {Trajectory optimization for arbitrary layered geometries in wire-arc additive manufacturing}, address = {Cottbus ; Senftenberg}, doi = {10.26127/BTUOpen-6267}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus4-62678}, pages = {21}, language = {en} } @phdthesis{Schmidt, author = {Schmidt, Johannes}, title = {The mission and flight planning problem : a physics-based MILP routing approach for an inhomogeneous fleet of unmanned aerial vehicles with collision-free trajectories.}, publisher = {BTU Cottbus-Senftenberg}, doi = {10.26127/BTUOpen-6841}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus4-68415}, pages = {138}, language = {en} } @misc{VeldkampSchmidtMarkwitzetal., author = {Veldkamp, Edzo and Schmidt, Marcus and Markwitz, Christian and Beule, Lukas and Beuschel, Ren{\´e} and Biert{\"u}mpfel, Andrea and Bischel, Xenia and Duan, Xiaohong and Gerjets, Rowena and G{\"o}bel, Leonie and Graß, R{\"u}diger and Guerra, Victor and Heinlein, Florian and Komainda, Martin and Langhof, Maren and Luo, Jie and Potthoff, Martin and Ramshorst, Justus G. V. van and Rudolf, Carolin and Seserman, Diana-Maria and Shao, Guodong and Siebicke, Lukas and Svoboda, Nikolai and Swieter, Anita and Carminati, Andrea and Freese, Dirk and Graf, Torsten and Greef, J{\"o}rg M. and Isselstein, Johannes and Jansen, Martin and Karlovsky, Petr and Knohl, Alexander and Lamersdorf, Norbert and Priesack, Eckart and Wachendorf, Christine and Wachendorf, Michael and Corre, Marife D.}, title = {Multifunctionality of temperate alley-cropping agroforestry outperforms open cropland and grassland}, series = {Communications Earth \& Environment}, volume = {4}, journal = {Communications Earth \& Environment}, number = {1}, publisher = {Springer Science and Business Media LLC}, issn = {2662-4435}, doi = {10.1038/s43247-023-00680-1}, pages = {10}, abstract = {AbstractIntensively managed open croplands are highly productive but often have deleterious environmental impacts. Temperate agroforestry potentially improves ecosystem functions, although comprehensive analysis is lacking. Here, we measured primary data on 47 indicators of seven ecosystem functions in croplands and 16 indicators of four ecosystem functions in grasslands to assess how alley-cropping agroforestry performs compared to open cropland and grassland. Carbon sequestration, habitat for soil biological activity, and wind erosion resistance improved for cropland agroforestry (P ≤ 0.03) whereas only carbon sequestration improved for grassland agroforestry (P \< 0.01). In cropland agroforestry, soil nutrient cycling, soil greenhouse gas abatement, and water regulation did not improve, due to customary high fertilization rates. Alley-cropping agroforestry increased multifunctionality, compared to open croplands. To ameliorate the environmental benefits of agroforestry, more efficient use of nutrients is required. Financial incentives should focus on conversion of open croplands to alley-cropping agroforestry and incorporate fertilizer management.}, language = {en} } @misc{BalasUrbankKadenetal., author = {Balas, Johannes and Urbank, Christian and Kaden, Peter and Patzschke, Michael and M{\"a}rz, Juliane and Kvashnina, Kristina O. and Schmidt, Moritz and Stumpf, Thorsten and Gericke, Robert}, title = {Bonding trends in pyridine-2-thiolato complexes of tetravalent actinides}, series = {Inorganic chemistry}, volume = {64}, journal = {Inorganic chemistry}, number = {44}, publisher = {American Chemical Society}, address = {Washington, DC}, issn = {1520-510X}, doi = {10.1021/acs.inorgchem.5c03369}, pages = {21919 -- 21931}, abstract = {Complexes of tetravalent actinides (An: Th, U, Np, Pu) with the bidentate (N,S)-donor ligand pyridine-2-thiolate (2-PyS, PyS-) were synthesized in 1:4 or 1:5 ratios. This includes the first structurally characterized Np complex with (N,S)-donor ligands, filling a notable gap in An coordination chemistry. An improved synthetic approach with PyS-SiMe3 enabled efficient formation of the 1:4 complexes in THF as coordinating solvent. The compounds were comprehensively characterized in solution and in solid phase, supported by quantum chemical calculations. Experimental and theoretical results show matching trends in the binding behavior of AnIV. The covalent bond contributions in An-N and An-S bonding increase along the series of An from Th to Pu. The bonds to the soft sulfur donors consistently have the highest covalent contributions with a remarkably high percentage for Pu-S (IQA analysis: >34\%) over the harder N donors or An-O bonds of coordinating THF. High-resolution X-ray absorption and infrared spectroscopy indicate similar electronic and structural properties across AnIV complexes, while SQUID magnetometry uncovered significant differences in magnetic behavior at low temperatures depending on the complex compositions. This work advances the understanding of An-ligand bonding, emphasizing covalency and electronic structures, and expands fundamental insights into An chemistry.}, language = {en} } @incollection{SchmidtFuegenschuh, author = {Schmidt, Johannes and F{\"u}genschuh, Armin}, title = {A column generation approach for weighted set packing problems with forbidden pairs}, series = {Operations Research Proceedings 2023 : selected papers of the Annual International Conference of the German Operations Research Society (GOR), Germany, August 29-September 1, 2023}, booktitle = {Operations Research Proceedings 2023 : selected papers of the Annual International Conference of the German Operations Research Society (GOR), Germany, August 29-September 1, 2023}, publisher = {Springer Nature Switzerland}, address = {Cham}, isbn = {978-3-031-58405-3}, issn = {2731-040X}, doi = {10.1007/978-3-031-58405-3_14}, pages = {107 -- 113}, abstract = {The weighted set packing problem (WSPP) is a variant of the well-known set packing problem, assigning a weight to every considered subset of a given finite base set. Its solution is a maximum sum-weight, element-disjoint covering of the base set. Using its formulation as a binary linear program (BLP), every column of the constraint matrix describes one of the given subsets. Thus, column generation (CG) provides a good solution method, generating iteratively only promising subsets as candidates for the covering. We consider an extension of the WSPP, where forbidden pairs are taken into consideration, i.e., there can be pairs of subsets that cannot be chosen at the same time, and adapt CG to derive a new solution algorithm to solve the resulting BLP. At each iteration, the optimal solution obtained with CG is checked for potential conflicts and either they are resolved locally without changing the objective function value or a new linear constraint forbidding the conflicting pair of columns is added. Then the CG procedure starts again. The applicability of this approach is shown for a team orienteering problem involving two unmanned aerial vehicles that must maintain safety distances between them.}, language = {en} } @techreport{SchmidtFuegenschuh, author = {Schmidt, Johannes and F{\"u}genschuh, Armin}, title = {Inter-sample avoidance in trajectory planning via an integer-polytope formulation for mixed-integer optimization}, publisher = {Brandenburgische Technische Universit{\"a}t Cottbus-Senftenberg}, address = {Cottbus}, issn = {2627-6100}, doi = {10.26127/BTUOpen-7169}, pages = {19}, abstract = {Autonomous vehicles such as drones or mobile robots must plan trajectories that avoid static obstacles. Their dynamics are captured by Newton's laws and discretized numerically, so the vehicle's position is tracked only at finitely many sample points. The resulting information gap allows a path to cut through an obstacle while still appearing feasible at all samples, a phenomenon called corner cutting. Finer time grids mitigate but never eliminate this artefact and increase computation time. We propose a new inter-sample avoidance scheme for polyhedral obstacles. The facet-defining half-spaces partition the three-dimensional mission space into sub-domains that we encode with binary sign vectors. Feasible one-step moves correspond to a specific subset of these vectors; we (i) enumerate that set exhaustively and (ii) give an integer-polytope formulation that enforces it without additional state variables or extra time steps. For planar motion with a single triangular no-fly zone we prove that the formulation is tight-the polytope equals the convex hull of its 0/1 points. The method is compared qualitatively with existing inter-sample avoidance techniques and its limitations are discussed. Computational experiments with a mixed-integer linear programming model for UAV mission planning, solved by Gurobi, demonstrate that the new formulation achieves realistic trajectories at competitive, or lower, solution times}, language = {en} } @techreport{SchmidtFuegenschuhBoeschow, author = {Schmidt, Johannes and F{\"u}genschuh, Armin and B{\"o}schow, Moritz}, title = {Sports league scheduling with minitournaments}, publisher = {Brandenburgische Technische Universit{\"a}t Cottbus-Senftenberg}, address = {Cottbus}, issn = {2627-4019}, doi = {10.26127/BTUOpen-7029}, pages = {15}, abstract = {In amateur or youth sports leagues, the teams play all matches during their leisure time. Thus, a schedule with a smaller number of game days is preferred and the teams are willing to partly renounce on the fairness for this by playing minitournaments instead of single matches. In this format, multiple teams meet at one of them and play against each other, reducing the number of necessary game days and required referees at the cost of unevenly distributed home field advantages. The travel times of all teams now depend on their assignment to the respective minitournaments and the choice of the home team. We present a binary linear optimization model to schedule a sports league as a double Round Robin tournament with minitournaments and most evenly distributed home field advantages, yielding a feasible league schedule with minimal total traveling distances for all teams. After adjusting orbital shrinking to break the occurring symmetries in the possible assignments, we discuss the computational efficiency and evaluate an existing schedule for the "Basketball Senioren Landesliga Brandenburg" amateur basketball league in Germany.}, language = {en} }