@article{GoschinVogelFlassig2022, author = {Goschin, Tobias and Vogel, Mathias and Flassig, Robert}, title = {Energy Technologies For Decarbonizing The Steel Processing Industry - A Numerical Study}, series = {IFAC-PapersOnLine}, volume = {55}, journal = {IFAC-PapersOnLine}, number = {9}, publisher = {Elsevier}, pages = {1 -- 5}, year = {2022}, abstract = {This study analyzes approaches to decarbonize the energy supply of the secondary steel processing industry. Therefore, real data from a secondary steel production company is used in combination with state-of-the art low carbon energy supply technologies. Also, the use of waste heat from a pusher furnace for process integration is considered. The developed temporal process model allows holistic optimizing and expanding the steel making process system regarding techno-economic criteria. As we show, implementing the annual heat demand of a municipality shows that a nearly 100 \% self-sufficient heat supply is possible.}, language = {en} } @article{VogelGoschinFlassig2022, author = {Vogel, Mathias and Goschin, Tobias and Flassig, Robert}, title = {Techno-economic analysis of excess wind energy utilitzation in the energy supply of residential quarters}, series = {IFAC-PapersOnLine}, volume = {55}, journal = {IFAC-PapersOnLine}, number = {9}, publisher = {Elsevier}, issn = {24058963}, doi = {10.1016/j.ifacol.2022.07.067}, pages = {384 -- 388}, year = {2022}, abstract = {In this study we have examined the potential of excess wind use in Germany. Excess wind constitutes roughly 40\% of unused capacities of installed wind power in Germany. Using LP modelling and representative annual load profiles on an hourly resolution, we investigate the impact of the price level for wind peak power supply of residential quarters with heat, cold and electricity in Germany in combination with different power ratios of wind supply and demand. As we show, an application of wind peak tariff is technically and economically feasible and allows using green leftover energy without going in competition with e.g., green fuels or green H2 production.}, language = {en} } @article{HirschSchmidtOseevetal.2016, author = {Hirsch, S{\"o}ren and Schmidt, Marc-Peter and Oseev, Aleksandr and Engel, Christian and Brose, Andreas and Schmidt, Bertram}, title = {Flexible free-standing SU-8 microfluidic impedancespectroscopy sensor for 3-D molded interconnectdevices application}, series = {Journal of Sensors and Sensor Systems}, volume = {5}, journal = {Journal of Sensors and Sensor Systems}, number = {1}, doi = {10.5194/jsss-5-55-2016}, pages = {55 -- 61}, year = {2016}, language = {en} } @article{WidjajaLoeweCosta2018, author = {Widjaja, Agnes S. N. and L{\"o}we, Katharina and Costa, Felipe Salerno}, title = {Design and simulation of a concentrated solar thermal system with an integrated concrete storage for continuous heat supply}, series = {Energy Procedia}, volume = {155}, journal = {Energy Procedia}, doi = {10.1016/j.egypro.2018.11.062}, pages = {121 -- 135}, year = {2018}, language = {en} } @article{AgafonovaKozyrevMukhinetal.2018, author = {Agafonova, D. S. and Kozyrev, A. B. and Mukhin, N. V. and Red'ka, D. N. and Elanskaya, G. K. and Rudenko, M. V. and Oseev, A. and Hirsch, S{\"o}ren}, title = {Impurity Phases in Polycrystalline Films of Ferroelectric Oxides of the Perovskite-Type on the Basis of Bi2SrTa2O9 and Pb(Zr,Ti)O3}, series = {Glass Physics and Chemistry}, volume = {44}, journal = {Glass Physics and Chemistry}, number = {1}, doi = {10.1134/S1087659618010029}, pages = {15 -- 20}, year = {2018}, language = {en} } @article{PtashnikMikhailovYastrebovetal.2017, author = {Ptashnik, Sergey V. and Mikhailov, Anatoliy K. and Yastrebov, Alexander V. and Petrov, Peter K. and Liu, Wei and McN Alford, Neil and Hirsch, Soeren and Kozyrev, Andrey B.}, title = {Ferroelectric thin film acoustic devices with electrical multiband switching ability}, series = {Scientific Reports}, volume = {7}, journal = {Scientific Reports}, number = {15289}, doi = {10.1038/s41598-017-14895-8}, year = {2017}, language = {en} } @article{OseevLucklumZubtsovetal.2017, author = {Oseev, Aleksandr and Lucklum, Ralf and Zubtsov, Mikhail and Schmidt, Marc-Peter and Mukhin, Nikolay V. and Hirsch, Soeren}, title = {SAW-Based Phononic Crystal Microfluidic Sensor—Microscale Realization of Velocimetry Approaches for Integrated Analytical Platform Applications}, series = {Sensors}, volume = {17}, journal = {Sensors}, number = {10}, doi = {10.3390/s17102187}, pages = {2187}, year = {2017}, language = {en} } @article{RedkaMukhinGrishkanichetal.2019, author = {Redka, D. and Mukhin, N. and Grishkanich, A. and Terukov, E. and Hirsch, S{\"o}ren and Ignateva, L.}, title = {NdYAG surface modification of ZnO for solar cells}, series = {Journal of Physics: Conference Series}, volume = {1410}, journal = {Journal of Physics: Conference Series}, publisher = {IOP Publishing}, doi = {10.1088/1742-6596/1410/1/012106}, pages = {012106}, year = {2019}, language = {en} } @article{KurachkinaKonshinaOseevetal.2018, author = {Kurachkina, Margarita and Konshina, Elena and Oseev, Aleksandr and Hirsch, S{\"o}ren}, title = {Hybrid structures based on gold nanoparticles and semiconductor quantum dots for biosensor applications}, series = {Nanotechnology Science and Applications}, volume = {11}, journal = {Nanotechnology Science and Applications}, doi = {10.2147/nsa.s155045}, pages = {15 -- 21}, year = {2018}, language = {en} } @article{LiefoldWagnerPokrakaetal.2018, author = {Liefold, Marius and Wagner, Dennis and Pokraka, Alexander and Schrader, Thomas}, title = {Low-Cost Medical Infrastructure: Triage as intelligent decision support}, series = {Electronic Imaging, Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications}, journal = {Electronic Imaging, Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications}, publisher = {Society for Imaging Science and Technology}, doi = {10.2352/ISSN.2470-1173.2018.06.MOBMU-116}, pages = {116-1 -- 116-4}, year = {2018}, language = {en} } @article{MukhinRedkaTarasovetal.2018, author = {Mukhin, N.V. and Redka, D. N. and Tarasov, S. A. and Oseev, A. Yu. and Hirsch, S{\"o}ren}, title = {Two-Dimensional Periodic Composite Structure for Acoustic Sensor of Volumetric Properties of Liquids}, series = {Journal of the Russian Universities. Radioelectronics}, journal = {Journal of the Russian Universities. Radioelectronics}, number = {1}, doi = {10.32603/1993-8985-2018-21-1-56-63}, pages = {56 -- 63}, year = {2018}, language = {ru} } @article{KombeLang'atNjoguetal.2022, author = {Kombe, Emmanuel Yeri and Lang'at, Nickson and Njogu, Paul and Malessa, Reiner and Weber, Christian-Toralf and Njoka, Francis and Krause, Ulrich}, title = {Process modeling and evaluation of optimal operating conditions for production of hydrogen-rich syngas from air gasification of rice husks using aspen plus and response surface methodology}, series = {Bioresource Technology}, volume = {361}, journal = {Bioresource Technology}, publisher = {Elsevier}, issn = {0960-8524}, pages = {1 -- 11}, year = {2022}, abstract = {Biomass gasification is recognized as a viable avenue to accelerate the sustainable production of hydrogen. In this work, a numerical simulation model of air gasification of rice husks is developed using the Aspen Plus to investigate the feasibility of producing hydrogen-rich syngas. The model is experimentally validated with rice husk gasification results and other published studies. The influence of temperature and equivalence ratio on the syngas composition, H2 yield, LHVSyngas, H2/CO ratio, CGE, and PCG was studied. Furthermore, the synchronized effects of temperature and ER are studied using RSM to determine the operational point of maximizing H2 yield and PCG. The RSM analysis results show optimum performance at temperatures between 820 °C and 1090 °C and ER in the range of 0.06-0.10. The findings show that optimal operating conditions of the gasification system can be achieved at a more refined precision through simulations coupled with advanced optimization techniques.}, language = {en} } @article{RuzankinaMukhinMermouletal.2022, author = {Ruzankina, Iuliia and Mukhin, Nikolay and Mermoul, Ali and Parfenov, Vadim and Fron, Eduard and Ferrini, Gabriele}, title = {Surface optical sensitivity enhanced by a single dielectric microsphere}, series = {Optics Express}, volume = {30}, journal = {Optics Express}, number = {24}, publisher = {Optica}, pages = {43021 -- 43036}, year = {2022}, abstract = {Single dielectric microspheres can manipulate light focusing and collection to enhance optical interaction with surfaces. To demonstrate this principle, we experimentally investigate the enhancement of the Raman signal collected by a single dielectric microsphere, with a radius much larger than the exciting laser spot size, residing on the sample surface. The absolute microsphere-assisted Raman signal from a single graphene layer measured in air is more than a factor of two higher than that obtained with a high numerical aperture objective. Results from Mie's theory are used to benchmark numerical simulations and an analytical model to describe the isolated microsphere focusing properties. The analytical model and the numerical simulations justify the Raman signal enhancement measured in the microsphere-assisted Raman spectroscopy experiments.}, language = {en} } @article{TumarkinTyurninaMukhinetal.2022, author = {Tumarkin, Andrey and Tyurnina, Natalya and Mukhin, Nikolay and Tyurnina, Zoya and Sinelshchikova, Olga and Gagarin, Alexander and Sapego, Eugeny and Kretser, Yriy}, title = {Glass-ceramic ferroelectric composite material BaTiO3/KFeSi for microwave applications}, series = {Composite Structures}, volume = {281}, journal = {Composite Structures}, publisher = {Elsevier}, issn = {0263-8223}, pages = {1 -- 10}, year = {2022}, abstract = {Glass-ceramic composites consisting of potassium-iron-silicate glass and barium titanate mixed in various proportions were successfully synthesized by low-temperature sintering. The crystal structure of the obtained composite samples, the porosity and the microhardness were studied by the X-ray diffraction, the electron microscopy, the weight method, and the Vickers method. Electrical characteristics (dielectric permittivity, tunability and losses) of as-prepared and annealed in oxygen medium samples were investigated at microwaves. According to structural analysis, the synthesized samples are a mixture of KFeSi glass, ferroelectric BaTiO3, and dielectric barium polytitanates; the ratio of the latter determines the electrical properties of the composites. Depending on the content of barium titanate, the studied composite samples show a permittivity from 50 to 270 with a dielectric loss level of 0,1-0,02 in frequency range from 3 to 10 GHz. Annealing of composite samples in an oxygen-containing environment leads to an increase in their dielectric permittivity and tunability by 10-25\% and a twofold decrease in dielectric loss.}, language = {en} } @article{FachetWitteFlassigetal.2020, author = {Fachet, Melanie and Witte, Carina and Flassig, Robert J. and Rihko-Struckmann, Liisa K. and McKie-Krisberg, Zaid and Polle, J{\"u}rgen E. W. and Sundmacher, Kai}, title = {Reconstruction and analysis of a carbon-core metabolic network for Dunaliella salina}, series = {BMC Bioinformatics}, volume = {21}, journal = {BMC Bioinformatics}, number = {1}, publisher = {BioMed Central}, doi = {10.1186/s12859-019-3325-0}, year = {2020}, language = {en} } @article{GieslerPeschWeirauchetal.2020, author = {Giesler, Jasper and Pesch, Georg R. and Weirauch, Laura and Schmidt, Marc-Peter and Th{\"o}ming, Jorg and Baune, Michae}, title = {Polarizability-Dependent Sorting of Microparticles Using Continuous-Flow Dielectrophoretic Chromatography with a Frequency Modulation Method}, series = {Micromachines}, volume = {11}, journal = {Micromachines}, number = {1}, publisher = {MDPI}, doi = {10.3390/mi11010038}, pages = {38}, year = {2020}, language = {en} } @article{VollmerMoellmann2020, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Unsichtbares sichtbar gemacht: Infrarotkameras f{\"u}r Smartphones}, series = {Physik in unserer Zeit}, volume = {51}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {https://doi.org/10.1002/piuz.201901551}, pages = {29 -- 35}, year = {2020}, language = {de} } @article{VollmerMoellmann2020, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Wenn Licht die Biege macht}, series = {Physik in unserer Zeit}, volume = {51}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {https://doi.org/10.1002/piuz.202001569}, pages = {46 -- 47}, year = {2020}, language = {de} } @article{WangHarthPuzyrevetal.2022, author = {Wang, Jing and Harth, Kirsten and Puzyrev, Dmitry and Stannarius, Ralf}, title = {The effect of obstacles near a silo outlet on the discharge of soft spheres}, series = {New Journal of Physics}, volume = {24}, journal = {New Journal of Physics}, publisher = {IOP}, doi = {10.1088/1367-2630/ac8bea}, year = {2022}, language = {en} } @article{RegehlyHecht2022, author = {Regehly, Martin and Hecht, Stefan}, title = {Auf dem Weg zum Replikator}, series = {Physik in unserer Zeit}, volume = {53}, journal = {Physik in unserer Zeit}, number = {3}, publisher = {Wiley-VCH GmbH}, issn = {1521-3943}, doi = {10.1002/piuz.202201637}, pages = {125 -- 131}, year = {2022}, language = {de} }