• Influence of Encapsulation Process Temperature on the Performance of Perovskite Mini Modules 

  Baumann, Sara; Brockmann, Lukas; Blankemeyer, Susanne; Steckenreiter, Verena; Barnscheidt, Verena; Köntges, Marc; Kajari-Schröder, Sarah; Wolter, Sascha Jozsef; Schulte-Huxel, Henning; Wietler, Tobias (Melville, NY : Inst., 2022)

  Perovskite-on-silicon tandem solar cells are a promising candidate to significantly increase the efficiency of PV modules. Despite the fast research progress on material and solar cells aspects, there is still a lack of ...
• Transient Electrical Characteristics of Silicon Heterojunction Solar Cells under Fast Transient Illumination 

  Wetzel, Gustav; Krügener, Jan; Stannowski, Bernd; Janke, Stefan; Peibst, Robby (Melville, NY : Inst., 2022)

  For vehicle integrated photovoltaics (VIPV) there are possibly specific requirements on the speed of maximum power point tracking. However, a certain delay in the response of solar cells to fast irradiance changes might ...
• The origin of isomerization of aniline revealed by high kinetic energy ion mobility spectrometry (HiKE-IMS) 

  Naylor, Cameron N.; Schaefer, Christoph; Kirk, Ansgar T.; Zimmermann, Stefan (Cambridge : RSC Publ., 2022)

  Although aniline is a relatively simple small molecule, the origin of its two peaks observed in ion mobility spectrometry (IMS) has remained under debate for at least 30 years. First hypothesized as a difference in protonation ...
• Markerless camera-based vertical jump height measurement using OpenPose 

  Webering, Fritz; Blume, Holger; Allaham, Issam (Piscataway, NJ : IEEE, 2021)

  Vertical jump height is an important tool to measure athletes’ lower body power in sports science and medicine. This work improves upon a previously published self-calibrating algorithm, which determines jump height using ...
• Improved Calibration Procedure for Wireless Inertial Measurement Units without Precision Equipment 

  Webering, Fritz; Kleinjohann, Sarah; Stanislawski, Nils; Blume, Holger ([Erscheinungsort nicht ermittelbar] : ArXiv, 2022)

  Inertial measurement units (IMUs) are used in medical applications for many different purposes. However, an IMU's measurement accuracy can degrade over time, entailing re-calibration. In their 2014 paper, Tedaldi et al. ...
• An Integrated Heated Testbench for Characterizing High Temperature ICs 

  Webering, Fritz; Payá Vayá, Guillermo; Aditya, Evan; Dürre, Jan Christoph; Blume, Holger Christoph (Dutch Research Council (NWO) : Den Haag, 2017)

  This paper presents a newly developed integrated heating system, which can keep the IC under test at a constant temperature of up to 250 ◦C. The heating system can be used while the IC under test is mounted on its ...
• A Combination of Ion Implantation and High-Temperature Annealing: The Origin of the 265 nm Absorption in AlN 

  Peters, Lukas; Margenfeld, Christoph; Krügener, Jan; Ronning, Carsten; Waag, Andreas (Weinheim : Wiley-VCH, 2022)

  The commonly observed absorption around 265 nm in AlN is hampering the outcoupling efficiency of light-emitting diodes (LEDs) emitting in the UV-C regime. Carbon impurities in the nitrogen sublattice (CN) of AlN are believed ...
• AdaCC: cumulative cost-sensitive boosting for imbalanced classification 

  Iosifidis, Vasileios; Papadopoulos, Symeon; Rosenhahn, Bodo; Ntoutsi, Eirini (London : Springer, 2022)

  Class imbalance poses a major challenge for machine learning as most supervised learning models might exhibit bias towards the majority class and under-perform in the minority class. Cost-sensitive learning tackles this ...
• Resorting to Context-Aware Background Knowledge for Unveiling Semantically Related Social Media Posts 

  Sakor, Ahmad; Singh, Kuldeep; Vidal, Maria-Esther (New York, NY : IEEE, 2022)

  Social media networks have become a prime source for sharing news, opinions, and research accomplishments in various domains, and hundreds of millions of posts are announced daily. Given this wealth of information in social ...
• Identification, isolation, and characterization of a novel type of Fukushima-derived microparticle 

  Macsik, Zsuzsanna; Hudston, Lisa A.; Wurth, Kimberly N.; Meininger, Daniel; Jesinghaus, Christian; Tenner, Travis J.; Naes, Benjamin E.; Boswell, Mitzi; Shozugawa, Katsumi; LaMont, Stephen P.; Steiner, Robert E.; Steinhauser, Georg (Dordrecht [u.a.] : Springer Science + Business Media B.V., 2022)

  In the course of the Fukushima nuclear accident, radionuclides were released in various forms, including so-called radiocesium-bearing microparticles (CsMP). So far, four types of CsMP were described: Type A is smaller in ...
• Formative assessment strategies for students' conceptions—The potential of learning analytics 

  Stanja, Judith; Gritz, Wolfgang; Krugel, Johannes; Hoppe, Anett; Dannemann, Sarah (Oxford : Wiley-Blackwell, 2022)

  Formative assessment is considered to be helpful in students' learning support and teaching design. Following Aufschnaiter's and Alonzo's framework, formative assessment practices of teachers can be subdivided into three ...
• Resistive High-Voltage Probe with Frequency Compensation by Planar Compensation Electrode Integrated in Printed Circuit Board Design 

  Winkelholz, Jonas; Hitzemann, Moritz; Nitschke, Alexander; Zygmanowski, Anne; Zimmermann, Stefan (Basel : MDPI, 2022)

  Resistive voltage dividers tend to have a highly non-linear transfer function as parasitic and stray capacitances exert an increasing influence with increasing frequency. The non-linear transfer function depends on the ...
• Diffusion Mechanisms of Dissolved Gases in Transformer Oil Influenced with Moisture Based on Molecular Dynamics Simulation 

  Jiang, Tianyan; Yang, Jie; Yang, Xiao; Li, Yang; Bi, Maoqiang; Zhou, Xin (Washington, DC : ACS Publications, 2022)

  Dissolved Gas Analysis (DGA) of insulating oil is widely used for diagnosing transformer incipient faults. Moisture is a major contaminant and degradation byproduct of transformer insulating oil. In this paper, molecular ...
• Detection of Chemical Warfare Agents with a Miniaturized High-Performance Drift Tube Ion Mobility Spectrometer Using High-Energetic Photons for Ionization 

  Ahrens, André; Allers, Maria; Bock, Henrike; Hitzemann, Moritz; Ficks, Arne; Zimmermann, Stefan (Columbus, Ohio : American Chemical Society, 2022)

  A growing demand for low-cost gas sensors capable of detecting the smallest amounts of highly toxic substances in air, including chemical warfare agents (CWAs) and toxic industrial chemicals (TICs), has emerged in recent ...
• Bias Assessments of Benchmarks for Link Predictions over Knowledge Graphs 

  Sawischa, Sammy Fabian (Hannover : Gottfried Wilhelm Leibniz Universität, 2023-04-26)

  Link prediction (LP) aims to tackle the challenge of predicting new facts by reasoning over a knowledge graph (KG). Different machine learning architectures have been proposed to solve the task of LP, several of them ...
• Wochenende — modular and flexible alignment-based shotgun metagenome analysis 

  Rosenboom, Ilona; Scheithauer, Tobias; Friedrich, Fabian C.; Pörtner, Sophia; Hollstein, Lisa; Pust, Marie-Madlen; Sifakis, Konstantinos; Wehrbein, Tom; Rosenhahn, Bodo; Wiehlmann, Lutz; Chhatwal, Patrick; Tümmler, Burkhard; Davenport, Colin F. (London : BioMed Central, 2022)

  Background: Shotgun metagenome analysis provides a robust and verifiable method for comprehensive microbiome analysis of fungal, viral, archaeal and bacterial taxonomy, particularly with regard to visualization of read ...
• Explainable software systems: from requirements analysis to system evaluation 

  Chazette, Larissa; Brunotte, Wasja; Speith, Timo (London : Springer, 2022)

  The growing complexity of software systems and the influence of software-supported decisions in our society sparked the need for software that is transparent, accountable, and trustworthy. Explainability has been identified ...
• Towards soundscape fingerprinting: development, analysis and assessment of underlying acoustic dimensions to describe acoustic environments 

  Bergner, Lutz Jakob (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)

  Soundscape according to the definition in ISO 12913-1 describes an acoustic environment as perceived by humans in context. In order to be able to assess a soundscape holistically, the components acoustic environment, person ...
• Quality of service and dependability of cellular vehicular communication networks 

  Akselrod, Mark (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)

  Improving the dependability of mobile network applications is a complicated task for many reasons: Especially in Germany, the development of cellular infrastructure has not always been fast enough to keep up with the growing ...
• All-fiber amplifier based on chirally-coupled-core fibers for gravitational wave detectors 

  Hochheim, Sven (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)

  Für die Entwicklung neuartiger Gravitationswellendetektoren auf Basis interferometrischer Messungen werden spezielle Hochleistungslaser benötigt. Die Designstudie für das europäische "Einstein Teleskop" offenbarte, dass ...

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