@misc{StockhausenJohannsenMaurer2023, author = {Stockhausen, Pablo and Johannsen, Andreas and Maurer, Robert}, title = {Machine-Learning Verfahren f{\"u}r eine nachhaltige Letzte-Meile-Logistik}, year = {2023}, abstract = {Dieser Beitrag entwickelt ein Konzept zur praktischen Umsetzung eines Machine- Learning Verfahrens zum L{\"o}sen von Vehicle Routing Problemen im Kontext einer nachhaltigen "Letzte-Meile"-Logistik, welches durch einen Prototyp umgesetzt und getestet wurde. Der Prototyp basiert auf dem "Reinforcement Learning"-System und verwendet als Algorithmus "REINFORCE mit Baseline". In einer Vergleichsanalyse wurde der Prototyp mit dem bekannten Vertreter Google-OR, anhand von zwei Anwendungsszenarien, verglichen. Der Prototyp {\"u}berzeugt dabei in der Laufzeit und dem Automatismus. Es konnte festgestellt werden, dass eine Verwendung von Lernenden-Systemen f{\"u}r das Vehicle Routing Problem sich bei nur bei einem gr{\"o}ßeren Stoppvolumen und einer erweiterten IT-Infrastruktur empfiehlt.}, language = {de} } @inproceedings{StockhausenJohannsenMaurer2023, author = {Stockhausen, Pablo and Johannsen, Andreas and Maurer, Robert}, title = {Konzeption eines Machine-Learnings-Verfahrens zum L{\"o}sen von Green Vehicle Routing Problemen}, series = {Konferenz: Informatik 2022, Lecture Notes in Informatics (LNI), Bonn, 2022/ Konferenzband: Informatik 2022 Fachtagung vom 26.-30. September 2022, Hamburg/ Band: P-326}, booktitle = {Konferenz: Informatik 2022, Lecture Notes in Informatics (LNI), Bonn, 2022/ Konferenzband: Informatik 2022 Fachtagung vom 26.-30. September 2022, Hamburg/ Band: P-326}, editor = {Krupka, Daniel and Federrath, Hannes and Demmler, Daniel}, publisher = {Gesellschaft f{\"u}r Informatik}, address = {Bonn}, isbn = {978-3-88579-720-3}, pages = {885 -- 897}, year = {2023}, language = {de} } @incollection{WereteckiKristal2024, author = {Weretecki, Patrick and Kristal, Samuel}, title = {Brand Value Co-Creation bei der Deutschen Telekom- Das (neu) entdeckte Potential der regionalen Marketingkommunikation}, series = {Marketing-Management : Konzepte - Instrumente - Unternehmensfallstudien / Philip Kotler, Kevin Lane Keller, Alexander Chernev, Marc Oliver Opresnik ; {\"U}bersetzung: Anke Harrer, Oberschleißheim - 16. aktualisierte Aufl. - M{\"u}nchen: Pearson, 2023}, booktitle = {Marketing-Management : Konzepte - Instrumente - Unternehmensfallstudien / Philip Kotler, Kevin Lane Keller, Alexander Chernev, Marc Oliver Opresnik ; {\"U}bersetzung: Anke Harrer, Oberschleißheim - 16. aktualisierte Aufl. - M{\"u}nchen: Pearson, 2023}, publisher = {Pearson}, isbn = {978-3-86894-443-3}, pages = {363 -- 368}, year = {2024}, language = {de} } @article{BraubachJander2023, author = {Braubach, Lars and Jander, Kai}, title = {1. Introduction}, series = {International Journal of Parallel, Emergent and Distributed Systems}, volume = {38}, journal = {International Journal of Parallel, Emergent and Distributed Systems}, number = {6}, publisher = {Taylor \& Francis}, issn = {1744-5779}, doi = {10.1080/17445760.2023.2251386}, pages = {459 -- 460}, year = {2023}, language = {en} } @inproceedings{Markgraf2024, author = {Markgraf, Klaus}, title = {Entwicklung eines Tools zur spezifischen, lastgangbasierten Eigenverbrauchsoptimierung mittels PV-Leistungsprognose}, series = {Konferenz: 18. Symposium Energieinnovation, 2024, Graz/Austria}, booktitle = {Konferenz: 18. Symposium Energieinnovation, 2024, Graz/Austria}, doi = {10.6084/m9.figshare.25610976}, pages = {1 -- 10}, year = {2024}, abstract = {The German government's initiative to cover 80\% of the gross electricity supply with renewable energies by 2050 brings considerable ecological benefits, but also poses several challenges. One of these challenges is the growing number of photovoltaic systems (PV systems), which, due to their high feed-in power, already pose a risk to the security of the electricity distribution grid during long periods of sunny weather. To counteract this, active research is being carried out in the field of PV power forecasting. This research is primarily aimed at providing the grid operator with a predicted power output, which enables a longer planning horizon and thus increases the operational grid security. However, the considerable annual electricity consumption of private households and the increasing spread of PV systems for self-consumption show that the energy behavior of households, especially self-consumption, also influences grid security. Additionally, households have an incentive to boost their self-consumption because the cost of drawing each kilowatt-hour from the grid is substantially higher than the compensation received for injecting an equivalent amount of energy back into the grid. However, as of now, there is no software available that easily enables households to tailor the usage patterns of their electrical appliances according to a photovoltaic (PV) forecast. The project described here aims to close this gap by creating such software. Various PV forecasting models are used and tested for their suitability for this purpose. A self-generated optimization process is implemented in this project to optimize the consumer configuration based on the PV forecasts. The here-developed tool enables the user to enter parameters for his PV system and the specific load profiles of his electrical appliances. Based on this data, the optimization algorithm determines a consumption plan with a forecast horizon until the end of the next day that maximizes the user's self-consumption. To validate the tool, the optimization process is carried out over a period of 60 days using a predefined scenario and the results are compared with a scenario in which the electrical appliances are intuitively operated at midday. The analysis of these results ultimately shows the potential impact of such a tool on the economic efficiency of private households and the supply stability.}, language = {en} } @article{AyalonAvisarJechowetal.2024, author = {Ayalon, Inbal and Avisar, Dror and Jechow, Andreas and Levy, Oren}, title = {Corals nitrogen and carbon isotopic signatures alters under Artificial Light at Night (ALAN)}, series = {The Science of The Total Environment}, journal = {The Science of The Total Environment}, number = {920}, publisher = {Elsevier}, doi = {10.1016/j.scitotenv.2024.170513}, year = {2024}, abstract = {This study examines the impact of Artificial Light at Night (ALAN) on two coral species, Acropora eurystoma and Pocillopora damicornis, in the Gulf of Aqaba/Eilat Red Sea, assessing their natural isotopic responses to highlight changes in energy and nutrient sourcing due to sensory light pollution. Our findings indicate significant disturbances in photosynthetic processes in Acropora eurystoma, as evidenced by shifts in δ13C values under ALAN, pointing to alterations in carbon distribution or utilization. In Pocillopora damicornis, similar trends were observed, with changes in δ13C and δ15N values suggesting a disruption in its nitrogen cycle and feeding strategies. The study also uncovers species-specific variations in heterotrophic feeding, a crucial factor in coral resilience under environmental stress, contributing to the corals' fixed carbon budget. Light measurements across the Gulf demonstrated a gradient of light pollution which possess the potential of affecting marine biology in the region. ALAN was found to disrupt natural diurnal tentacle behaviors in both coral species, crucial for prey capture and nutrient acquisition, thereby impacting their isotopic composition and health. Echoing previous research, our study underscores the need to consider each species' ecological and physiological contexts when assessing the impacts of anthropogenic changes. The findings offer important insights into the complexities of marine ecosystems under environmental stress and highlight the urgency of developing effective mitigation strategies.}, language = {en} } @article{HascheKaraschewskiCreutzburg2023, author = {Hasche, Eberhard and Karaschewski, Oliver and Creutzburg, Reiner}, title = {iPhone12 imagery in scene-referred computer graphics pipelines}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, doi = {10.2352/EI.2023.35.3.MOBMU-350}, pages = {350-1 -- 350-14}, year = {2023}, abstract = {With the release of the Apple iPhone 12 Pro Max in 2020, various features were integrated that make it attractive as a recording device for scene-related computer graphics pipelines. The captured Apple RAW images have a much higher dynamic range than the standard 8-bit images. Since a scene-based workflow naturally has an extended dynamic range (HDR), the Apple RAW recordings can be well integrated. To correctly integrate the iPhone 12 pro Apple RAW data into a scene-related workflow, two command-line software solutions, among others, are dcraw and rawtoaces. In this paper, we concentrate on dcraw. dcraw offers the possibility to export RAW images directly to ACES2065-1. Different images recorded under different lighting conditions are examined to determine which options for the dcraw development produce the best results. Images from five different lighting situations like D65, D60, D55, D50, and 2980K, are examined. The DNG files are developed using different methods within dcraw. The values of the recorded ColorChecker24 patches are compared to reference values derived from BabelColor [1] and ACES [2].}, language = {en} } @article{JasterCreutzburgHasche2023, author = {Jaster, Daniel and Creutzburg, Reiner and Hasche, Eberhard}, title = {A qualitative study of LiDAR technologies and their application areas}, series = {Electronic Imaging}, volume = {35}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, doi = {10.2352/EI.2023.35.3.MOBMU-368}, pages = {368-1 -- 368-15}, year = {2023}, abstract = {In this work, the most relevant 3D LiDAR technologies and their applications in 2022 were investigated. For this purpose, applications of LiDAR systems were classified into the typical application areas "3D modeling", "smart city", "robotics", "smart automotive" and "consumer goods". The investigation has shown that neither "mechanical" LiDAR technologies, nor so-called solid-state LiDAR technologies, nor "hybrid" LiDAR technologies can be evaluated as optimal for the typical application areas. In none of the application areas could all of the elaborated requirements be met. However, the "hybrid" LiDAR technologies such as sequential MEMS LiDAR technology and sequential flash LiDAR technology proved to be among the most suitable for most typical application areas. However, other technologies also tended to be suitable for individual typical application areas. Finally, it was found that several of the LiDAR technologies investigated are currently equally suitable for some typical application areas. To evaluate the suitability, concrete LiDAR systems - of different technologies and properties - were compared with the specific requirements of exemplary applications of an application area. The results of the investigation provide an orientation as to which LiDAR technology is promising for which application area.}, language = {en} } @article{MalekiMohammadi2023, author = {Maleki, Maniya and Mohammadi, Mahdieh}, title = {Velocity and pressure functions of an oscillating flow in a circular Hele-Shaw cell}, series = {Iranian Journal of Physics Research}, volume = {22}, journal = {Iranian Journal of Physics Research}, number = {1}, publisher = {Physics Society of Iran}, doi = {10.47176/ijpr.22.1.81304}, pages = {113 -- 120}, year = {2023}, abstract = {In this study, we have investigated the form of velocity and pressure functions of a fluid oscillating between two parallel glass sheets that form a circular Hele-Shaw cell. The flow has been considered to be radial, incompressible and laminar. The time-dependent Navier-Stokes equation has been solved in cylindrical coordinates using Fourier transform, and the oscillating flow velocity across the thickness of the cell has been obtained at different times. The flow velocity function in the unsteady state is related to the vertical component of the coordinates in the form of parabolic functions and also to the inverse of the radial component. The time dependence appears as a simple harmonic with a frequency equal to the oscillation frequency. The velocity of the flow is maximum at the middle of the cell along its height and gradually decreases from the middle towards the top or bottom plane and reaches zero. Pressure does not depend on the height and changes logarithmically with the radius. The dependence of pressure on time is also a simple harmonic with the external frequency, but it has a phase shift with respect to the velocity.}, language = {en} } @article{TrittelPuzyrevStannarius2024, author = {Trittel, Torsten and Puzyrev, Dmitry and Stannarius, Ralf}, title = {Platonic solids bouncing on a vibrating plate}, series = {Physical Review E}, volume = {109}, journal = {Physical Review E}, number = {3}, publisher = {American Physical Society}, doi = {10.1103/PhysRevE.109.034903}, year = {2024}, abstract = {The energy transfer between bouncing particles and rigid boundaries during impacts is crucially influenced not only by restitution coefficients of the material but also by particle shapes. This is particularly important when such particles are mechanically agitated with vibrating plates. Inertial measurement units are able to measure all acceleration and rotational velocity components of an object and store these data for subsequent analysis. We employ them to measure the dynamics of cubes and icosahedra on vibrating plates to study the efficiency of energy transfer into the individual degrees of freedom (DOFs) of the excited object. The rotational DOFs turn out to be much less excited than the vertical translational motion. Most remarkably, there is only little difference between the two Platonic solids in both the absolute energies and the energy partition ratios.}, language = {en} } @article{LachowskiHammermeisterHalenzetal.2023, author = {Lachowski, Krzysztof and Hammermeister, Florian and Halenz, Bastian and Lieckefett, Florian and G{\"o}tze, Thomas and Prill, Robert and Becker, Roland}, title = {The Patellostabilometer: A New Device for Quantification of Mediolateral Patella Displacement}, series = {Sensors}, journal = {Sensors}, number = {23 (3)}, publisher = {MDPI}, doi = {https://doi.org/10.3390/s23031274}, year = {2023}, abstract = {Mediolateral patella displacement is of interest for diagnostics and clinically relevant research questions. Apart from manual testing, no standardized method is currently available. Proper quantification of patella mobility is necessary to better understand pathologies at the patellofemoral joint. Patella mobility was assessed in 25 healthy individuals using a Patellostabilometer, a new prototype instrument for quantification of the mediolateral patella displacement. The participants underwent measurements of the mediolateral displacement three times using the Patellostabilome- ter. A maximal force of 10 N was applied for patella movement. Additionally, leg length and circumference of the knee, upper- and lower-leg were measured. Lateral patella displacement of 18.27 ± 3.76 mm (range 15.85-20.64 mm, interquartile range (IQR) of 4.79) was measured. The medial patella displacement showed 24.47 ± 6.59 mm (range 19.29-29.76 mm, IQR of 10.47). The test-retest measurement error was 2.32 ± 1.76 mm (IQR of 2.38 mm), with five outliers. There was greater test-retest variability between the measurements of the medial displacement compared to the lateral one. The test-retest variability reached 7\% of the patella displacement. Other parameters provided no significant correlations. Based on the natural patellofemoral mobility, a precise and clinically relevant quantification of patella mobility is allowed.}, language = {en} } @article{RizunRevinaEdelmann2023, author = {Rizun, Nina and Revina, Aleksandra and Edelmann, Noella}, title = {Application of Text Analytics in Public Service Co-Creation: Literature Review and Research Framework}, series = {DG.O 2023: The 24th Annual International Conference on Digital Government Research}, journal = {DG.O 2023: The 24th Annual International Conference on Digital Government Research}, publisher = {Association for Computing Machinery}, doi = {10.1145/3598469.3598471}, pages = {12 -- 22}, year = {2023}, abstract = {The public sector faces several challenges, such as a number of external and internal demands for change, citizens' dissatisfaction and frustration with public sector organizations, that need to be addressed. An alternative to the traditional top-down development of public services is co-creation of public services. Co-creation promotes collaboration between stakeholders with the aim to create better public services and achieve public values. At the same time, data analytics has been fuelled by the availability of immense amounts of textual data. Whilst both co-creation and TA have been used in the private sector, we study existing works on the application of Text Analytics (TA) techniques on text data to support public service co-creation. We systematically review 75 of the 979 papers that focus directly or indirectly on the application of TA in the context of public service development. In our review, we analyze the TA techniques, the public service they support, public value outcomes, and the co-creation phase they are used in. Our findings indicate that the TA implementation for co-creation is still in its early stages and thus still limited. Our research framework promotes the concept and stimulates the strengthening of the role of Text Analytics techniques to support public sector organisations and their use of co-creation process. From policy-makers' and public administration managers' standpoints, our findings and the proposed research framework can be used as a guideline in developing a strategy for the designing co-created and user-centred public services.}, language = {en} } @article{Guterding2023, author = {Guterding, Daniel}, title = {Sparse Modeling Approach to the Arbitrage-Free Interpolation of Plain-Vanilla Option Prices and Implied Volatilities}, series = {Risks}, journal = {Risks}, number = {11 (5)}, publisher = {MDPI AG}, doi = {https://doi.org/10.3390/risks11050083}, pages = {24}, year = {2023}, abstract = {We present a method for the arbitrage-free interpolation of plain-vanilla option prices and implied volatilities, which is based on a system of integral equations that relates terminal density and option prices. Using a discretization of the terminal density, we write these integral equations as a system of linear equations. We show that the kernel matrix of this system is, in general, ill-conditioned, so that it cannot be solved for the discretized density using a naive approach. Instead, we construct a sparse model for the kernel matrix using singular value decomposition (SVD), which allows us not only to systematically improve the condition number of the kernel matrix, but also determines the computational effort and accuracy of our method. In order to allow for the treatment of realistic inputs that may contain arbitrage, we reformulate the system of linear equations as an optimization problem, in which the SVD-transformed density minimizes the error between the input prices and the arbitrage-free prices generated by our method. To further stabilize the method in the presence of noisy input prices or arbitrage, we apply an 𝐿1-regularization to the SVD-transformed density. Our approach, which is inspired by recent progress in theoretical physics, offers a flexible and efficient framework for the arbitrage-free interpolation of plain-vanilla option prices and implied volatilities, without the need to explicitly specify a stochastic process, expansion basis functions or any other kind of model. We demonstrate the capabilities of our method in a number of artificial and realistic test cases.}, language = {en} } @article{StannariusHarth2023, author = {Stannarius, Ralf and Harth, Kirsten}, title = {The structure of disintegrating defect clusters in smectic C freely suspended films}, series = {Soft Matter}, journal = {Soft Matter}, number = {19}, publisher = {Royal Society of Chemistry}, doi = {https://doi.org/10.1039/d3sm00808h}, pages = {6109 -- 6115}, year = {2023}, abstract = {Disclinations or disclination clusters in smectic C freely suspended films with topological charges larger than one are unstable. They disintegrate, preferably in a spatially symmetric fashion, into single defects with individual charges of +1, which is the smallest positive topological charge allowed in polar vector fields. While the opposite process of defect annihilation is well-defined by the initial defect positions, disintegration starts from a singular state and the following scenario including the emerging regular defect patterns must be selected by specific mechanisms. We analyze experimental data and compare them with a simple model where the defect clusters adiabatically pass quasi-equilibrium solutions in one-constant approximation. It is found that the defects arrange in geometrical patterns that correspond very closely to superimposed singular defect solutions, without additional director distortions. The patterns expand by affine transformations where all distances between individual defects scale with the same time-dependent scaling factor proportional to the square-root of time.}, language = {en} } @article{XuShimizuGuterdingetal.2023, author = {Xu, Han-Xiang and Shimizu, Makoto and Guterding, Daniel and Otsuki, Junya and Jeschke, Harald O.}, title = {Pressure evolution of electronic structure and magnetism in the layered van der Waals ferromagnet CrGeTe3}, series = {Physical Review B}, journal = {Physical Review B}, number = {Vol. 108}, publisher = {American Physical Society}, doi = {https://doi.org/10.1103/PhysRevB.108.125142}, pages = {15}, year = {2023}, abstract = {Layered van der Waals ferromagnets, which preserve their magnetic properties down to exfoliated monolayers, are fueling an abundance of fundamental research and nanoscale device demonstration. CrGeTe3 is a prime example of this class of materials. Its temperature-pressure phase diagram features an insulator-to-metal transition and a significant increase in ferromagnetic Curie-Weiss temperatures upon entering the metallic state. We use density functional theory to understand the magnetic exchange interactions in CrGeTe3 at ambient and elevated pressures. We calculate Heisenberg exchange couplings, which provide the correct ferromagnetic ground state and explain the experimentally observed pressure dependence of magnetism in CrGeTe3. Furthermore, we combine density functional theory with dynamical mean-field theory to investigate the effects of electronic correlations and the nature of the high-pressure metallic state in CrGeTe3.}, language = {en} } @article{KloppTrittelHarthetal.2023, author = {Klopp, Christoph and Trittel, Torsten and Harth, Kirsten and Stannarius, Ralf}, title = {Coalescence of biphasic droplets embedded in free standing smectic A films}, series = {Soft Matter}, volume = {20}, journal = {Soft Matter}, number = {5}, publisher = {Royal Society of Chemistry}, issn = {1744-683X}, doi = {10.1039/d3sm01549a}, pages = {1036 -- 1046}, year = {2023}, abstract = {We investigate micrometer-sized flat droplets consisting of an isotropic core surrounded by a nematic rim in freely suspended smectic A liquid-crystal films. In contrast to purely isotropic droplets which are characterized by a sharp edge and no long-range interactions, the nematic fringe introduces a continuous film thickness change resulting in long-range mutual attraction of droplets. The coalescence scenario is divided in two phases. The first one consists in the fusion of the nematic regions. The second phase involves the dissolution of a thin nematic film between the two isotropic cores. The latter has many similarities with the rupture of thin liquid films between droplets coalescing in an immiscible viscous liquid. Coalescence of biphasic droplets in free-standing smectic films is controlled in part by the rupture of a thin nematic membrane separating the isotropic droplet cores.}, language = {en} } @article{NagelSchminder2023, author = {Nagel, Michael and Schminder, Christian}, title = {Sachbezogenes Verhandeln als Methode im Zielbildungsprozess von innovationsorientierten Public Private Partnerships.}, series = {Ideen- und Innovationsmanagement}, journal = {Ideen- und Innovationsmanagement}, number = {2}, editor = {Erich Schmidt Verlag,}, publisher = {Erich Schmidt Verlag GmbH \& Co}, issn = {2198-3151}, doi = {10.37307/j.2198-3151.2022.02.07}, pages = {72 -- 77}, year = {2023}, language = {de} } @article{Johannsen2023, author = {Johannsen, Andreas}, title = {ERP-Einf{\"u}hrung - Bewertung einer Standardimplementierungsmethode f{\"u}r SAP Business One}, series = {ERP Management}, journal = {ERP Management}, publisher = {GITO Verlag}, issn = {1860-6725}, pages = {19 -- 22}, year = {2023}, language = {de} } @article{KuznetsovFroripSuenteretal.2023, author = {Kuznetsov, Arthur and Frorip, Aleksandr and S{\"u}nter, Alar and Kasvand, Nensi and Korsakov, Vadim and Konoplev, Georgii and Stepanova, Oksana and Rusalepp, Linda and Anton, Dea and P{\"u}ssa, T{\~o}nu and Roasto, Mati and Abramova, Liubov and Kozin, Andrey and Toom, Lauri and Hirsch, S{\"o}ren and Mukhin, Nikolay}, title = {Fast Protein and Metabolites (Nucleotides and Nucleosides) Liquid Chromatography Technique and Chemical Sensor for the Assessment of Fish and Meat Freshness}, series = {Chemosensors}, journal = {Chemosensors}, number = {1/2023 / Band 11}, editor = {mdpi,}, publisher = {MDPI}, issn = {2227-9040}, doi = {10.3390/chemosensors11010069}, pages = {69}, year = {2023}, abstract = {Fast protein and metabolite liquid chromatography (FPLMC) was introduced years ago to enable the easy separation of high-molecular compounds such as proteins from small molecules and the identification of the low-molecular substances. In this paper, the method is applied for the rapid evaluation of freshness and monitoring the aging of animal meat and fish. A novel chromatographic sensor was developed with a deep UV LED-based photometric detection unit (255-265 nm), an original flow cuvette and registration scheme; the processing of a chromatogram with the sensor takes approximately 15 min. Strict isochronism between the elution of ATP metabolites, mainly hypoxanthine (Hx) and inosine monophosphate (IMP), and the time of maturation of meat or fish, was discovered. A new freshness index H* = [Hx]/[IMP] was introduced, which is proportional to the instrumental delay time in the FPMLC chromatograms: the H* index < 0.5 indicates the presence of inosine monophosphate (IMP) and the high quality of the meat or fish. Reasonably strong correlations were revealed between data obtained by FPMLC and total volatile basic nitrogen TVB-N (for fish) or volatile fatty acids VFA (for meat) content. Moreover, putative nucleotide salvage and an increase in the concentration of IMP were observed in fish after heat treatment using the FPMLC sensor and NMR technique.}, language = {en} } @article{KristalWeretecki2024, author = {Kristal, Samuel and Weretecki, Patrick}, title = {Social first? Not always! Brand co-creation through regional marketing at Deutsche Telekom}, series = {Transfer: Zeitschrift f{\"u}r Kommunikation \& Markenmanagement}, volume = {70}, journal = {Transfer: Zeitschrift f{\"u}r Kommunikation \& Markenmanagement}, number = {1}, publisher = {New Business Verlag}, pages = {67 -- 71}, year = {2024}, abstract = {Deutsche Telekom, one of the world's leading integrated telecommunications companies, has recently shifted its focus in event marketing to prioritize more personal co-creational communication on regional occasions, rather than largescale events. This paper outlines the three-part LAW-principle that Deutsche Telekom follows in its brand communication in Germany, providing examples for each of the three pillars. The co-creation resulting from brand communication is changing the role of marketing and brand practitioners. They are now required to negotiate with various stakeholders.}, language = {en} } @article{KloppTrittelHarthetal.2022, author = {Klopp, Christoph and Trittel, Torsten and Harth, Kirsten and Stannarius, Ralf}, title = {Smectic free-standing films under fast lateral compression}, series = {Soft Matter}, journal = {Soft Matter}, publisher = {Royal Society of Chemistry}, issn = {1744-683X, 1744-6848}, doi = {10.1039/D1SM01207J}, pages = {146 -- 155}, year = {2022}, abstract = {Smectic films in a collapsing catenoid develop spontaneous wrinkling patterns like solid sheets. Smectic freely-suspended films can wrinkle like solid sheets. This has been demonstrated earlier with shape-fluctuating smectic bubbles. Here, we exploit the collapse of smectic catenoid films with a central equatorial film to expose the latter to rapid lateral compression. Wrinkle formation is observed in the planar film and the thickness dependence of the undulation wavelength is measured. In addition to the central film, its border undergoes an undulation instability as well.}, language = {en} } @article{ChaurasiaGoeckeDe2022, author = {Chaurasia, Prashtan Kumar and Goecke, Sven-Frithjof and De, Amitava}, title = {Real-time monitoring of temperature field, metal transfer and cooling rate during gas metal arc-directed energy deposition}, series = {Science and Technology of Welding and Joining}, journal = {Science and Technology of Welding and Joining}, number = {27}, publisher = {Taylor \& Francis}, issn = {13621718}, doi = {10.1080/13621718.2022.2080447}, pages = {512 -- 521}, year = {2022}, language = {en} } @article{Blasek2022, author = {Blasek, Katrin}, title = {Auskunfteiwesen und Kreditscoring in unruhigem Fahrwasser}, series = {Zeitschrift f{\"u}r Datenschutz}, journal = {Zeitschrift f{\"u}r Datenschutz}, number = {8}, publisher = {C.H.Beck}, issn = {2192-5593}, pages = {433 -- 438}, year = {2022}, language = {de} } @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{KantJohannsen2021, author = {Kant, Daniel and Johannsen, Andreas}, title = {Sicherer Datenaustausch in Kooperationen - „Kooperation first - Sicherheit second?"}, series = {Mittelstand-Digital Magazin - Wissenschaft trifft Praxis}, journal = {Mittelstand-Digital Magazin - Wissenschaft trifft Praxis}, number = {2021/16}, publisher = {Begleitforschung Mittelstand-Digital}, pages = {43 -- 48}, year = {2021}, language = {de} } @article{HascheKaraschewskiCreutzburg2022, author = {Hasche, Eberhard and Karaschewski, Oliver and Creutzburg, Reiner}, title = {RAW images and videos for 30K panoramic projection using the ACES workflow}, series = {Electronic Imaging}, journal = {Electronic Imaging}, number = {34}, editor = {Society for Imaging Science and Technology,}, publisher = {Society for Imaging Science and Technology}, issn = {2470-1173}, doi = {10.2352/EI.2022.34.3.MOBMU-400}, pages = {400-1 -- 400-13}, year = {2022}, language = {en} } @article{RevinaBuzaMeister2020, author = {Revina, Aleksandra and Buza, Krisztian and Meister, Vera G.}, title = {IT Ticket Classification: The Simpler, the Better}, series = {IEEE Access}, volume = {8}, journal = {IEEE Access}, publisher = {Institute of Electrical and Electronics Engineers (IEEE)}, issn = {2169-3536}, doi = {10.1109/ACCESS.2020.3032840}, pages = {193380 -- 193395}, year = {2020}, language = {en} } @article{Sasaki2021, author = {Sasaki, Felix}, title = {K{\"u}nstliche Intelligenz in der Ausbildung von Wissensarbeiterinnen und Wissensarbeitern}, series = {API : Ausbilden, Publizieren, Informieren - studentisches Magazin der HAW Hamburg}, volume = {2}, journal = {API : Ausbilden, Publizieren, Informieren - studentisches Magazin der HAW Hamburg}, number = {1}, publisher = {Hamburg University Press}, issn = {2699-6693}, doi = {10.15460/apimagazin.2021.2.1.65}, pages = {1 -- 16}, year = {2021}, language = {de} } @article{Levina2021, author = {Levina, Olga}, title = {Von Ethik zu Recht : Der AI Act und seine Bedeutung f{\"u}r die Gestaltung von algorithmischen Systemen}, series = {Informatik aktuell}, journal = {Informatik aktuell}, publisher = {Alkmene Verlag}, issn = {2511-7564}, year = {2021}, language = {de} } @article{DueckBeckSteckelberg2022, author = {D{\"u}ck, M. and Beck, Eberhard and Steckelberg, A.}, title = {Literaturrecherche zur Leitliniengetreue Behandlung von Brustkrebspatientinnen}, series = {Geburtshilfe und Frauenheilkunde}, volume = {82}, journal = {Geburtshilfe und Frauenheilkunde}, number = {6}, publisher = {Thieme}, doi = {10.1055/s-0042-1749035}, pages = {631}, year = {2022}, language = {de} } @article{SchraderTetzlaffBecketal.2020, author = {Schrader, Thomas and Tetzlaff, Laura and Beck, Eberhard and Mindt, Sebastian and Geiss, Friederike and Hauser, Katarina and Franken, Christian}, title = {Die {\"A}hnlichkeit von Medikamentennamen als m{\"o}gliche Ursache von Verwechslungen - eine Untersuchung von Daten aus der ambulanten Versorgung}, series = {Zeitschrift f{\"u}r Evidenz, Fortbildung und Qualit{\"a}t im Gesundheitswesen}, journal = {Zeitschrift f{\"u}r Evidenz, Fortbildung und Qualit{\"a}t im Gesundheitswesen}, publisher = {Elsevier}, issn = {1865-9217 (Print)}, doi = {10.1016/j.zefq.2020.01.006}, year = {2020}, language = {de} } @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{WhiskerdKoertgeJuergensetal.2020, author = {Whiskerd, Nicholas and K{\"o}rtge, Nicklas and J{\"u}rgens, Kris and Ezennaya-Gomez, Salatiel and Vielhauer, Claus and Dittmann, Jana and Hildebrandt, Mario}, title = {Keystroke biometrics in the encrypted domain: a first study on search suggestion functions of web search engines}, series = {EURASIP Journal on Information Security}, journal = {EURASIP Journal on Information Security}, number = {2020:2}, publisher = {Springer}, doi = {10.1186/s13635-020-0100-8}, 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{JohannsenFelixFriedrich2020, author = {Johannsen, Andreas and Felix Friedrich, Eifert}, title = {Cloud-Kooperationsf{\"a}higkeit f{\"u}r KMU Digitales Benchmarking f{\"u}r IT-Anbieter und IT-Anwender}, series = {ERP Management}, volume = {16}, journal = {ERP Management}, number = {1}, publisher = {GITO Verlag}, issn = {1860-6725}, pages = {41 -- 43}, year = {2020}, language = {de} } @article{MoellmannRegehlyVollmer2020, author = {M{\"o}llmann, Klaus-Peter and Regehly, Martin and Vollmer, Michael}, title = {Spectroscopy and microscopy analysis of semiconductor lasers in student laboratories}, series = {European Journal of Physics}, volume = {41}, journal = {European Journal of Physics}, number = {2}, publisher = {Institute of Physics Publishing (IOP); European Physical Society}, doi = {10.1088/1361-6404/ab5075}, pages = {025302}, year = {2020}, language = {en} } @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{LuebckeBraenzelDehlingeretal.2019, author = {L{\"u}bcke, Andrea and Braenzel, Julia and Dehlinger, Aurelie and Schn{\"u}rer, Matthias and Stiel, Holger and Guttmann, Peter and Rehbein, Stefan and Schneider, Gerd and Werner, Stephan and Kemmler, Roman and Ritter, Sebastian and Raugust, Marc and Wende, Torsten and Behrendt, Marcel and Regehly, Martin}, title = {Soft X-ray nanoscale imaging using a sub-pixel resolution charge coupled device (CCD) camera}, series = {Review of Scientific Instruments}, volume = {90}, journal = {Review of Scientific Instruments}, number = {4}, publisher = {American Institute of Physics}, doi = {10.1063/1.5053593}, year = {2019}, language = {en} } @article{AndrzejewskiFellmannBecketal.2019, author = {Andrzejewski, Dennis and Fellmann, Michael and Beck, Eberhard and Breischwerdt, R{\"u}diger}, title = {Entscheidungsmodellierung in der Senologie - aktueller Stand und zuk{\"u}nftige Forschung}, series = {Senologie - Zeitschrift f{\"u}r Mammadiagnostik und -therapie}, volume = {16}, journal = {Senologie - Zeitschrift f{\"u}r Mammadiagnostik und -therapie}, number = {02}, publisher = {Thieme}, doi = {10.1055/s-0039-1687937}, pages = {e2}, year = {2019}, language = {de} } @article{JohannsenKunkelKunkel2019, author = {Johannsen, Andreas and Kunkel, Olga and Kunkel, Carsten}, title = {Digitalisierung first - Besch{\"a}ftigtendatenschutz second?}, series = {Wissenschaft trifft Praxis}, journal = {Wissenschaft trifft Praxis}, number = {11}, publisher = {Barbara Budrich}, issn = {2198-8544}, pages = {56 -- 65}, year = {2019}, language = {de} } @article{FlassigMangoldWoelfer2019, author = {Flassig, Robert J. and Mangold, Michael and W{\"o}lfer, Christian}, title = {Towards Design of Self-Organizing Biomimetic Systems}, series = {Advanced Biosystems}, volume = {3}, journal = {Advanced Biosystems}, number = {6}, publisher = {Wiley Vch}, issn = {2366-7478}, doi = {/10.1002/adbi.201800320}, pages = {1800320}, year = {2019}, language = {en} } @article{KellerHoll2019, author = {Keller, Ivo and Holl, Friedrich-L.}, title = {Kriterien: Wie Security auch f{\"u}r Safety verantwortlich wird}, series = {Datenschutz und Datensicherheit - DuD}, volume = {43}, journal = {Datenschutz und Datensicherheit - DuD}, number = {7}, publisher = {Gabler Verlag}, issn = {1614-0702}, doi = {10.1007/s11623-019-1138-y}, pages = {426 -- 433}, year = {2019}, language = {de} } @article{JanderBraubachPokahr2019, author = {Jander, Kai and Braubach, Lars and Pokahr, Alexander}, title = {Practical Defense-in-depth Solution for Microservice Systems}, series = {Journal of Ubiquitous Systems and Pervasive Networks}, volume = {11}, journal = {Journal of Ubiquitous Systems and Pervasive Networks}, number = {1}, publisher = {International Association for Sharing Knowledge and Sustainability}, doi = {10.5383/juspn.11.01.003}, pages = {17 -- 25}, year = {2019}, language = {en} } @article{GoeckeMakwanaShomeetal.2019, author = {Goecke, Sven-Frithjof and Makwana, Pinaac and Shome, Mahadev and De, Amitava}, title = {Probing joint strength and distortion in gas metal arc lap joining of aluminum and steel sheets}, series = {Welding in the World}, volume = {63}, journal = {Welding in the World}, number = {2}, publisher = {Springer}, doi = {10.1007/s40194-018-0653-z}, pages = {229 -- 236}, year = {2019}, language = {en} } @article{VollmerShawNugentetal.2019, author = {Vollmer, Michael and Shaw, Joseph A. and Nugent, Paul and Harris, Wilson}, title = {Heiße Quellen im W{\"a}rmebild. Yellowstone-Park im Infraroten}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {5}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901539}, pages = {244 -- 250}, year = {2019}, language = {de} } @article{MakwanaGoeckeDe2019, author = {Makwana, Pinaac and Goecke, Sven-Frithjof and De, Amitava}, title = {Real-time heat input monitoring towards robust GMA brazing}, series = {Science and Technology of Welding \& Joining}, volume = {24}, journal = {Science and Technology of Welding \& Joining}, number = {1}, publisher = {Taylor \& Francis}, doi = {10.1080/13621718.2018.1470290}, pages = {1 -- 11}, year = {2019}, language = {en} } @article{VollmerMoellmann2019, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Manche m{\"o}gen's kochend heiß}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901533}, pages = {46 -- 47}, year = {2019}, language = {de} } @article{VollmerMoellmann2019, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Alles kalter Kaffee? Rasante Physik}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {5}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901553}, pages = {252 -- 253}, year = {2019}, language = {de} } @article{VollmerMoellmann2019, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Das langsame Verdunsten von Wasser}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {2}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901541}, pages = {97 -- 98}, year = {2019}, language = {de} }