Results 91 to 100 of about 5,346,507 (336)

Temperature behavior of the magnon modes of the square lattice antiferromagnet

, 1999
A spin-wave theory of short-range order in the square lattice Heisenberg antiferromagnet is formulated. With growing temperature from T=0 a gapless mode is shown to arise simultaneously with opening a gap in the conventional spin-wave mode.
A. Sherman, A. Sherman, A. Sokol, A. V. Chubukov, D. A. Arovas, H. Shimahara, J. D. Reger, M. S. Makivić, M. Schreiber, M. Takahashi, N. D. Mermin, S. Chakravarty, S. Liang, S. Tang, S. V. Tyablikov, Y. Okabe   +15 more
core   +1 more source

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Evaluation of magnetic materials for static inverters and converters [PDF]

, 1969
Program studies materials for use in static inverters and converters.
Frost, R. M., Mc Vay, R. E., Pavlovic, D. M.   +2 more
core   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

OPTIMASI PARAMETER TEKNIK SQUARE WAVE VOLTAMMETRY DENGAN ELEKTRODA GRAFIT FAN PENERAPANNYA PADA ANALISIS KLORIN BEBAS DALAM AIR CUCIAN BERAS BERPEMUTIH

Jurnal Kimia Riset, 2019
Abstrak Klorin (OCl-) merupakan bahan kimia berbahaya bagi kesehatan manusia, yang kadang digunakan sebagai bahanpemutih beras.  Oleh  sebab  itu  dilakukan  upaya  analisis  Klorin  menggunakan  teknik  Square  Wave  Voltammetry.
Fenly Arismaya, Siswoyo Siswoyo, Asnawati Asnawati   +2 more
doaj   +1 more source

Spin waves in La_2CuO_4: band structure and correlation effects

, 2003
We calculate the antiferromagnetic spin wave dispersion in the half-filled (electronic density n=1) Hubbard model for a two-dimensional square lattice, using the random phase approximation (RPA) in a broken symmetry (spin density wave) ground state.
Coldea, Igarashi, MacDonald, MacDonald, Peres, Rønnow, Sandvik, Sengupta, Singh, Takahashi   +9 more
core   +1 more source

Patterning the Void: Combining L‐Systems with Archimedean Tessellations as a Perspective for Tissue Engineering Scaffolds

Advanced Functional Materials, EarlyView.
This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou, Kenny A. van Kampen, Pierpaolo Fucile, Carlos Mota, Lorenzo Moroni   +4 more
wiley   +1 more source

Predicting wave run-up on vertical columns based on thermal stereography measurements

Applied Ocean Research
Accurate estimation of wave run-up is crucial for the design and safety of marine structures. To facilitate more precise and convenient predictions of wave run-up on vertical columns, including circular and square columns, many empirical formulas have ...
Deyu Li, Longfei Xiao, Handi Wei, Lijun Yang, Meng Shan   +4 more
doaj   +1 more source

Enhancement of Sea Wave Potential Energy with Under-Sea Periodic Structures: A Simulation and Laboratory Study

Applied Sciences, 2017
This paper is devoted to a theoretical investigation on the wave amplitude enhancement of surface sea water waves with under-sea periodic arrays of cylinders.
Shuo-Feng Chiu, Jyun-Jie Wang, Ssu-Che Wang, Sheng D. Chao   +3 more
doaj   +1 more source

Multifrequency synthesis and extraction using square wave projection patterns for quantitative tissue imaging

Journal of Biomedical Optics, 2015
. We present a method for spatial frequency domain data acquisition utilizing a multifrequency synthesis and extraction (MSE) method and binary square wave projection patterns.
K. P. Nadeau, Tyler B Rice, Anthony J. Durkin, B. Tromberg   +3 more
semanticscholar   +1 more source