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  • Two-dimensional SiP, SiAs, GeP and GeAs as promising candidates for photocatalytic applications 
    Mortazavi, Bohayra; Shahrokhi, Masoud; Cuniberti, Gianaurelio; Zhuang, Xiaoying (Basel : MDPI AG, 2019)
    Group IV-V-type layered materials, such as SiP, SiAs, GeP and GeAs, are among the most attractive two-dimensional (2D) materials that exhibit anisotropic mechanical, optical and transport properties. In this short ...
  • Two-dimensional steady-state thermal elasto-plastic contact of rough surfaces 
    Liu, G.; Liu, T.; Xie, Q.; Wang, Q.J. (London : SAGE Publications Ltd., 2008)
    A finite-element deterministic two-dimensional thermal elasto-plastic contact model is presented in this article, which facilitates the investigation of the influence of steady-state frictional heating on contacting ...
  • A two-layer Conditional Random Field model for simultaneous classification of land cover and land use 
    Albert, Lena; Rottensteiner, Franz; Heipke, Christian (Göttingen : Copernicus GmbH, 2014)
    This paper proposes a two-layer Conditional Random Field model for simultaneous classification of land cover and land use. Both classification tasks are integrated into a unified graphical model, which is reasonable due ...
  • Two-Level Error Estimation for the Integral Fractional Laplacian 
    Faustmann, Markus; Stephan, Ernst P.; Wörgötter, David (Berlin : De Gruyter, 2023)
    For the singular integral definition of the fractional Laplacian, we consider an adaptive finite element method steered by two-level error indicators. For this algorithm, we show linear convergence in two and three space ...
  • Two-level metallization and module integration of point-contacted solar cells 
    Schulte-Huxel, Henning; Römer, Udo; Blankemeyer, Susanne; Merkle, Agnes; Larionova, Yevgeniya; Steckenreiter, Verena; Peibst, Robby; Kajari-Schröder, Sarah; Brendel, Rolf (Amsterdam : Elsevier, 2014)
    We present a module integration process for back junction back contact (BJBC) solar cells featuring point contacts to the back surface field (BSF). We apply two metallization layers. A first metal layer of aluminum is ...
  • Two-loop results on the renormalization of vacuum expectation values and infrared divergences in the FDH scheme 
    Gnendiger, Christoph; Signer, Adrian; Sperling, Marcus; Stöckinger, Dominik; Voigt, Alexander (Trieste : Proceedings of Science (PoS), 2014)
    Recent progress in the understanding of vacuum expectation values and of infrared divergences in different regularization schemes is reviewed. Vacuum expectation values are gauge and renormalization-scheme dependent ...
  • Two-mode entanglement in spin and spatial degrees of freedom 
    Lange, Karsten (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018)
    The predictions of quantum mechanics often differ from our everyday experiences. In the classical case, the state of a system can be predicted precisely, assuming the exact knowledge of all parameters. This is not possible ...
  • Two-path transport measurements on a triple quantum dot 
    Rogge, M.C.; Haug, Rolf J. (College Park, MD : American Physical Society, 2008)
    As an advanced quantum system, a three terminal triple quantum dot with one lead attached to each dot allows us to simultaneously measure a transport along two different paths. Quadruple points with all three dots in ...
  • Two-path transport measurements with bias dependence on a triple quantum dot 
    Kotzian, M.; Rogge, M.C.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2013)
    We present transport measurements on a lateral triple quantum dot with a star-like geometry and one lead attached to each dot. [1] The system is studied in a regime close to established quadruple points, where all three ...
  • Two-phase flow in rotating hele-shaw cells with coriolis effects 
    Escher, Joachim; Guidotti, Patrick; Walker, Christoph (Zürich : European Mathematical Society Publishing House, 2013)
    The free boundary problem of a two phase flow in a rotating Hele-Shaw cell with Coriolis effects is studied. Existence and uniqueness of solutions near spheres is established, and the asymptotic stability and instability ...
  • Two-phase flow patterns in adiabatic and diabatic corrugated plate gaps 
    Polzin, A.-E.; Kabelac, S.; de Vries, B. (Bristol : IOP Publ., 2016)
    Correlations for two-phase heat transfer and pressure drop can be improved considerably, when they are adapted to specific flow patterns. As plate heat exchangers find increasing application as evaporators and condensers, ...
  • Two-phase thin film equations with insoluble surfactant 
    Brüll, Gabriele (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2015)
    [no abstract]
  • Two-photon optical shielding of collisions between ultracold polar molecules 
    Karam, Charbel; Vexiau, Romain; Bouloufa-Maafa, Nadia; Dulieu, Olivier; Lepers, Maxence; Borgloh, Mara Meyer zum Alten; Ospelkaus, Silke; Karpa, Leon (College Park, MD : APS, 2023)
    We propose a method to engineer repulsive long-range interactions between ultracold ground-state molecules using optical fields, thus preventing short-range collisional losses. It maps the microwave coupling recently used ...
  • Two-photon polymerization of hybrid sol-gel materials for photonics applications 
    Ovsianikov, A.; Gaidukeviciute, A.; Chichkov, Boris; Oubaha, M.; MacCraith, B.D.; Sakellari, I.; Giakoumaki, A.; Gray, D.; Vamvakaki, M.; Farsari, M.; Fotakis, C. (London : Hindawi Limited, 2008)
    Two-photon polymerization of photosensitive materials has emerged as a very promising technique for the fabrication of photonic crystals and devices. We present our investigations into the structuring by two-photon ...
  • Two-photon quantum interference and entanglement at 2.1 µm 
    Prabhakar, Shashi; Shields, Taylor; Dada, Adetunmise C.; Ebrahim, Mehdi; Taylor, Gregor G.; Morozov, Dmitry; Erotokritou, Kleanthis; Miki, Shigehito; Yabuno, Masahiro; Terai, Hirotaka; Gawith, Corin; Kues, Michael; Caspani, Lucia; Hadfield, Robert H.; Clerici, Matteo (Washington, DC [u.a.] : Assoc., 2020)
    Quantum-enhanced optical systems operating within the 2- to 2.5-μm spectral region have the potential to revolutionize emerging applications in communications, sensing, and metrology. However, to date, sources of entangled ...
  • Two-qubit microwave quantum logic gate with 9Be+ ions in scalable surface-electrode ion traps 
    Hahn, Henning (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)
    Towards the goal of a large-scale quantum computer based on trapped ions, near-field microwaves represent a promising approach to perform the techni- cally challenging key operation of a two-qubit entangling gate. In this ...
  • A two-scale model of granular materials using a coupled DE-FE approach 
    Wellmann, Christian (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2011)
    [no abstract]
  • Two-stage permanent deactivation of the boron-oxygen-related recombination center in crystalline silicon 
    Steckenreiter, V.; Walter, D.C.; Schmidt, J. (London : Elsevier Ltd., 2017)
    We analyze the lifetime evolution during permanent deactivation of the boron-oxygen-related defect center (BO defect) in boron-doped, oxygen-rich Czochralski-grown silicon (Cz-Si). In particular, we examine the impact of ...
  • A two-stage Tabu Search for multi-objective facility layout problem 
    Aurich, Paul; Speckmann, Marc; Böning, Christian; Stonis, Malte (Hannover : publish-Ing., 2021)
    In this paper, a new solution for the facility layout problem is presented. The approach was integrated into a planning software. The aim of the MeFaP research project was mainly the development of a user-friendly decision ...
  • Two-step phase shifting in fringe projection: Modeling and analysis 
    Mao, Jiaqi; Yin, Yongkai; Meng, Xiangfeng; Yang, Xiulun; Lu, Lei; Li, Dechun; Pape, Christian; Reithmeier, Eduard (Bellingham, Wash. : SPIE, 2018)
    This work proposes a two-step phase-shifting algorithm as an improvement of fringe projection profilometry. Considering the working process of fringe projection, the captured fringe image is formulated with two variables, ...