Results 81 to 90 of about 340,877 (291)

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

Advanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee, Yunseo Kim, Hyeong‐ku Jo, Dongjoon Yoon, Byeonghyeok Im, WonJeong Yu, Eui‐Rim On, Changhwan Lee   +7 more
wiley   +1 more source

Simulation of Water Entry Jet and Cavitation Characteristics of Hollow Projectiles

水下无人系统学报
In the water entry process of hollow projectiles, the formation of high-speed water jets is a crucial factor influencing their water entry. In order to study the influence of the through-hole aperture of hollow projectiles on jet and water entry ...
Junbang XIANG, Xiaoguang WANG, Huifeng KANG, Jialin XUAN, Liu YANG   +4 more
doaj   +1 more source

Comparative study on absorbing characteristics of aperture-type and patch-type FSS

Journal of Aeronautical Materials, 2020
Aperture-type and patch-type frequency selective surfaces (FSS) were prepared by using carbon fiber paper containing carbon fiber. Using honeycomb as the matching dielectric layer, microscopic characterization of carbon fiber distribution in carbon fiber
YUAN Xujiong, LIU Wenyan, WANG Yan, LU Zetao, ZHANG Youwei, HAN Muchou, LI Xiao, LIU Min   +7 more
doaj   +1 more source

Horn feed having overlapping apertures Patent [PDF]

, 1970
Characteristics of antenna horn feeds consisting of central horn with overlapping peripheral ...
Clark, R. T.
core   +1 more source

Galaxy-galaxy(-galaxy) lensing as a sensitive probe of galaxy evolution

, 2012
The gravitational lensing effect provides various ways to study the mass environment of galaxies. We investigate how galaxy-galaxy(-galaxy) lensing can be used to test models of galaxy formation and evolution.
Adelman-McCarthy, Bardeen, Bartelmann, Bett, Bower, Brainerd, Colless, Cooray, Crittenden, Croton, de la Torre, De Lucia, Dekel, Font, Frigo, Gladders, Guo, H. Saghiha, Hilbert, Hoekstra, Jullo, Kaiser, Kauffmann, Kim, Kleinheinrich, Le Fèvre, Li, Mandelbaum, Mandelbaum, McBride, Mo, P. Schneider, P. Simon, S. Hilbert, Schneider, Schneider, Schneider, Schneider, Schneider, Simon, Simon, Springel, Springel, Strateva, van Uitert, van Waerbeke, White   +46 more
core   +1 more source

Dispensing Volumetric Additive Manufacturing

Advanced Functional Materials, EarlyView.
Dispensing volumetric additive manufacturing (DVAM) prints 3D structures inside a photocurable resin droplet suspended from the tip of a glass pipette, enabling sequential printing without resin vats or manual part removal. Real‐time droplet profiling and ray‐tracing‐based correction compensate for optical distortion at the curved resin‐air interface ...
Hongryung Jeon, Yunsoo Lee, Seobin Park, Kyung‐Hwan Kim, Junyoung Seo, Im Doo Jung   +5 more
wiley   +1 more source

Axial ratio improvement in aperture antennas using high-impedance ground plane

Electronics Letters, 2002
High-impedance surfaces are studied as a means of improving the radiation pattern symmetry in aperture antennas. Compared to a solid metal ground plane, the results suggest that high-impedance surfaces can significantly improve the axial ratio of circularly polarised antennas.
D. Sievenpiper, J. Schaffner, J. Navarro
openaire   +1 more source

Disordered Carbon Shells Enable Shape Dependent Fluorescence Enhancement in Nanodiamond Quantum Sensors Revealed by Correlative TEM–Fluorescence Microscopy

Advanced Functional Materials, EarlyView.
Molten KNO2 treatment induces a lowrefractive index disordered carbon shell on fluorescent nanodiamonds, enhancing fluorescence emission while preserving spin coherence. Machine learningassisted correlative TEMPL enables direct single‐particle resolution of this enhancement relative to air‐oxidized nanodiamonds of similar morphology, establishing a ...
Parkarsh Kumar, Tom Vaillant, Mehran Kianinia, Haotian Wen, Adam Stewart, Peter J. Reece, Hugues A. Girard, Jean‐Charles Arnault, Huan‐Cheng Chang, Igor Aharonovich, Shery L. Y. Chang   +10 more
wiley   +1 more source

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

Advanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya, Christian Balischewski, Jiyong Kim, Tiago Duarte, Lianshe Fu, Rute A.S. Ferreira, Alkit Beqiraj, Iuliia Mikulska, Diego Gianolio, Eric Sperlich, Felix Stete, Wouter Koopman, Christina Günter, Katlen Brennenstuhl, Daniel Van Opdenbosch, Cordt Zollfrank, Armin Wedel, Beth J. Murray, Małgorzata Swadźba‐Kwaśny, Tillmann Klamroth, Michael U. Kumke, Verónica de Zea Bermudez, Andreas Taubert   +22 more
wiley   +1 more source

Adaptive Enhancement Display of Chromatic Electrowetting Based on Color Conversion

IEEE Access
The charge capture of color inks in chromatic electrowetting electronic paper, the contact angle hysteresis and inconsistent aperture ratio result in a narrower color gamut and reduced contrast of the display screen.
Mingzhen Chen, Shanling Lin, Jianpu Lin, Zhixian Lin, Tailiang Guo   +4 more
doaj   +1 more source