Results 81 to 90 of about 19,232 (304)
Advanced Science, EarlyView.This work introduces a beamforming‐based method to generate acoustic images from fiber‐optic distributed acoustic sensing (DAS) data. By performing 2D scanning around the sensing fiber, the approach enables near‐field imaging and localization of acoustic sources, even in regions distant from the fiber. A data‐driven DAS channel selection improves image
Marcelo A. Soto +1 more
wiley +1 more source
Learning to use Cartesian coordinate systems to solve physics problems: the case of ‘movability’ [PDF]
, 2020 Trevor Volkwyn +3 more
openalex +1 more source
Transient Antiskyrmion‐Mediated Topological Transitions in Isotropic Magnets
Advanced Science, EarlyView.A transient antiskyrmion‐mediated pathway that drives repeated stripe‐to‐skyrmion transitions is revealed, producing a net increase in topological charge in isotropic Dzyaloshinskii–Moriya interaction films. Experiments and simulations identify the antiskyrmion as a metastable excitation, enabling stochastic bitstream generation for probabilistic ...
Bingqian Dai +18 more
wiley +1 more source
Paradoxical Topological Soliton Lattice in Anisotropic Frustrated Chiral Magnets
Advanced Science, EarlyView.The article describes the discovery of a stable skyrmion‐antiskyrmion lattice (S‐AL) in anisotropic frustrated chiral magnets. This lattice has a net‐zero topological charge due to a balanced population of skyrmions and antiskyrmions. This is a paradoxical finding since these particles normally annihilate each other.
Sayan Banik +2 more
wiley +1 more source
Active Force Dynamics in Red Blood Cells Under Non‐Invasive Optical Tweezers
Advanced Science, EarlyView.A non‐invasive method combines low‐power optical tweezers with high‐speed microscopy to simultaneously monitor local membrane forces and displacements in single human red blood cells. This dual‐channel approach reveals a mechano‐dynamic signature that correlates the cell's metabolic state with its mechanical activity. This energetic framework serves as
Arnau Dorn +5 more
wiley +1 more source
Magnetohydrodynamics flow of nanofluid due to stretching/shrinking surface with slip effect
Advances in Mechanical Engineering, 2017 This research concerns with the flow of nanofluid due to a stretching/shrinking surface. The underlying problem governs the boundary layer equations for two-dimensional viscous and incompressible fluids in Cartesian coordinate system.
Tanvir Akbar +3 more
doaj +1 more source
Defect‐Cascades‐Induced Photodegradation in InP/ZnSe/ZnS Quantum Dots
Advanced Science, EarlyView.Surface sulfur vacancies in InP/ZnSe/ZnS quantum dots trigger vacancy cascades under blue light, propagating toward the ZnSe interface. In situ ESR (g = 2.004, 2.012) and DFT reveal a defect‐driven shift from type‐I to type‐II band alignment, reducing radiative recombination and EQE.
Yeongrok Jin +9 more
wiley +1 more source
Jixie chuandong, 2002 It is very complicated to calculate the coordinates of the involute profile of gear tooth using the equations under polar coordinates system given in mechanics books, and the involute equations given in maths books are also inapplicable for this purpose.
王友林, 于青, 姜英
doaj
Primary body axes of vertebrates: Generation of a near‐Cartesian coordinate system and the role of Spemann‐type organizer [PDF]
, 2006 Hans Meinhardt
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Helix Alignment, Chevrons, and Edge Dislocations in Twist‐Bend Ferroelectric Nematics
Advanced Science, EarlyView.The recently discovered twist‐bend ferroelectric nematic (NTBF) is the new member of the multiferroic family, representing a fluid with an oblique helicoidal (heliconical) periodic structure of spontaneous electric polarization. The work presents a thorough exploration of the material properties of this phase, how the periodic modulation of ...
Bijaya Basnet +8 more
wiley +1 more source