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(vortex)
8,849 results
  • Vector Field Topology of Time-Dependent Flows in a Steady Reference Frame. [Journal Article]
    IEEE Trans Vis Comput Graph 2019Rojo IB, Gunther T
  • The topological analysis of unsteady vector fields remains to this day one of the largest challenges in flow visualization. We build up on recent work on vortex extraction to define a time-dependent vector field topology for 2D and 3D flows. In our work, we split the vector field into two components: a vector field in which the flow becomes steady, and the remaining ambient flow that describes th…
  • Tetragonal Superstructure of the Antiskyrmion Hosting Heusler Compound Mn1.4PtSn. [Journal Article]
    Chem Mater 2019; 31(15):5876-5880Vir P, Kumar N, … Felser C
  • Skyrmions in non-centrosymmetric magnets are vortex-like spin arrangements, viewed as potential candidates for information storage devices. The crystal structure and noncollinear magnetic structure together with magnetic and spin-orbit interactions define the symmetry of the skyrmion structure. We outline the importance of these parameters in the Heusler compound Mn1.4PtSn which hosts antiskyrmio…
  • Energy efficient 3D printed column type feed spacer for membrane filtration. [Journal Article]
    Water Res 2019; 164:114961Ali SM, Qamar A, … Shon HK
  • Modification of the feed spacer design significantly influences the energy consumption of membrane filtration processes. This study developed a novel column type feed spacer with the aim to reduce the specific energy consumption (SEC) of the membrane based water filtration system. The proposed spacer increases the clearance between the filament and the membrane (reducing the spacer filament diame…
  • Atomically Thin Nonlinear Transition Metal Dichalcogenide Holograms. [Journal Article]
    Nano Lett 2019Dasgupta A, Gao J, Yang X
  • Nonlinear holography enables optical beam generation and holographic image reconstruction at new frequencies other than the excitation fundamental frequency, providing pathways toward unprecedented applications in optical information processing and data security. So far, plasmonic metasurfaces with the thickness of tens of nanometers have been mostly adopted for realizing nonlinear holograms with…
  • Leading-edge vortices over swept-back wings with varying sweep geometries. [Journal Article]
    R Soc Open Sci 2019; 6(7):190514Lambert WB, Stanek MJ, … Hackett EE
  • Micro air vehicles are used in a myriad of applications, such as transportation and surveying. Their performance can be improved through the study of wing designs and lift generation techniques including leading-edge vortices (LEVs). Observation of natural fliers, e.g. birds and bats, has shown that LEVs are a major contributor to lift during flapping flight, and the common swift (Apus apus) has …
  • Polyacrylamide Ferrogels with Ni Nanowires. [Journal Article]
    Materials (Basel) 2019; 12(16)Safronov AP, Stadler BJH, … Kurlyandskaya GV
  • Nickel magnetic nanowires (NWs) have attracted significant attention due to their unique properties, which are useful for basic studies and technological applications, for example in biomedicine. Their structure and magnetic properties were systematically studied in the recent years. In this work, Ni NWs with high aspect ratios (length/diameter ~250) were fabricated by electrodeposition into comm…
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