Results 91 to 100 of about 749,179 (255)

Spatial–phase dynamics of radially polarized terahertz vortex beams

Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка
Актуальність. У роботі розглядається задача непараксіальної дифракції вихрових лазерних пучків терагерцового діапазону, збуджених радіально поляризованими TM0m (m = 1, 2, 3) модами діелектричного хвилевідного резонатора.
A. V. Degtyarev, М. М. Dubinin, V. A. Maslov   +2 more
doaj   +1 more source

Polarization: Concepts, Measurement, Estimation [PDF]

The purpose of this paper is two-fold. First, we develop the measurement theory of polarization for the case in which asset distributions can be described using density functions.
Esteban, Joan, Ray, Debraj, Duclos, Jean-Yves   +2 more
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Thermoresponsive Liquid Crystalline Polymer Coatings Programmed by Field‐Induced Topological Defects for Tunable Optical and Topographical Responses

Advanced Functional Materials, EarlyView.
Resonant standing waves generate large‐area lattices of liquid‐crystal topological defects that are permanently encoded into polymer coatings by photopolymerization. The preserved director architecture produces thermally reconfigurable surface topographies while maintaining programmable optical functionality, demonstrating a scalable strategy for ...
Jacques A. Peixoto, Mufeeduzaman Chavilkkadan, Alexander Fusi, Marko Beslać, Dirk J. Broer, Etienne Brasselet, Danqing Liu   +6 more
wiley   +1 more source

Turbulent Vortex with Moderate Dust Settling Probed by Scattering-induced Polarization in the IRS 48 System

The Astrophysical Journal
We investigate the crescent-shaped dust trap in the transition disk Oph IRS 48 using well-resolved (sub)millimeter polarimetric observations at ALMA Band 7 (870 μ m).
Haifeng Yang, Manuel Fernández-López, Zhi-Yun Li, Ian W. Stephens, Leslie W. Looney, Zhe-Yu Daniel Lin, Rachel Harrison   +6 more
doaj   +1 more source

MicroRNA Targeting of CoREST Controls Polarization of Migrating Cortical Neurons

Cell Reports, 2014
The migration of cortical projection neurons is a multistep process characterized by dynamic cell shape remodeling. The molecular basis of these changes remains elusive, and the present work describes how microRNAs (miRNAs) control neuronal polarization ...
Marie-Laure Volvert, Pierre-Paul Prévot, Pierre Close, Sophie Laguesse, Sophie Pirotte, James Hemphill, Florence Rogister, Nathalie Kruzy, Rosalie Sacheli, Gustave Moonen, Alexander Deiters, Matthias Merkenschlager, Alain Chariot, Brigitte Malgrange, Juliette D. Godin, Laurent Nguyen   +15 more
doaj   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

Advanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow, Hsi‐Wen Wu, Aimin Li, Yalou Guo, Duhong Chen, Jie Zhang, Paul A. Webley   +6 more
wiley   +1 more source

Spatially Variable Ripple and Groove Formation on Gallium Arsenide Using Linear, Radial, and Azimuthal Polarizations of Laser Beam

Photonics
We demonstrated the linear, radial, and annular ripple formation on the surface of GaAs. The formation of linear ripples was optimized by the number of shots and the fluence of 30 ps, 532 nm pulses.
Kalvis Kalnins, Vyacheslav V. Kim, Andra Naresh Kumar Reddy, Anatolijs Sarakovskis, Rashid A. Ganeev   +4 more
doaj   +1 more source

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

Advanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli, Amina Lahrichi, Hoje Chun, Rafael Gómez‐Bombarelli, Bruno G. Pollet   +4 more
wiley   +1 more source

Upcycling Keratin‐Based Textile Waste Into High‐Performance Hybrid Fibers Via Tuning the Interfacial Interactions

Advanced Functional Materials, EarlyView.
Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai, Daniel Van Opdenbosch, Inge Schlapp‐Hackl, Teemu Välisalmi, Markus Linder, Michael Hummel, Wenwen Fang   +6 more
wiley   +1 more source

Measuring polarization, inequality, welfare and poverty [PDF]

This paper analyzes the relationship between polarization and inequality, welfare and poverty measures. First, the Wolfson polarization measure is generalized in terms of the between-groups and within-groups Gini components for income groups separated by
Juan Gabriel Rodríguez
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