Results 31 to 40 of about 394,351 (300)

Wideband polarization-independent anomalous reflection metasurface with multiple resonance modes [PDF]

Journal of Advanced Dielectrics, 2017
An ultra-thin metasurface is proposed to realize wideband polarization-independent anomalous reflection. The sub-wavelength resonator can produce different resonance modes, which are the result of the combined effect of dielectric and the metallic ...
Guoxiang Dong, Song Xia, Yongyong Zhuang, Hongyu Shi, Zhan Zhang, Yuchen He, Anxue Zhang, Xiaoyong Wei, Zhuo Xu   +8 more
doaj   +1 more source

Universal Electromagnetic Waves in Dielectric

, 2008
The dielectric susceptibility of a wide class of dielectric materials follows, over extended frequency ranges, a fractional power-law frequency dependence that is called the "universal" response.
Carpinteri A, Debye P, Debye P, Gorenflo R, Hilfer R, Jonscher A K, Jonscher A K, Kilbas A A, Kittel C, Metzler R, Nigmatullin R R, Ramakrishnan T V, Samko S G, Tarasov V E, Tarasov V E, Vasily E Tarasov, Zaslavsky G M   +16 more
core   +3 more sources

Sepiolite-Based Nanogenerator Driven by Water Evaporation

Nanomaterials
This work introduces a new type of water evaporation-driven nanogenerator (S-WEG) utilizing the natural mineral sepiolite, which capitalizes on its hierarchical nanoporous architecture and intrinsic hydrophilicity to harvest energy from ambient humidity ...
Liwei Zhao, Guoxing Jiang, Xing Zhang, Chunchang Wang   +3 more
doaj   +1 more source

Fish Scale for Wearable, Self-Powered TENG

Nanomaterials
Flexible and wearable devices are attracting more and more attention. Herein, we propose a self-powered triboelectric nanogenerator based on the triboelectric effect of fish scales.
Liwei Zhao, Jin Han, Xing Zhang, Chunchang Wang   +3 more
doaj   +1 more source

Dielectric behavior and phase transition in [111]-oriented PIN–PMN–PT single crystals under dc bias [PDF]

Journal of Advanced Dielectrics, 2014
Temperature and electric field dependences of the dielectric behavior and phase transition for [111]-oriented 0.23PIN–0.52PMN–0.25PT (PIN-PMN–0.25PT) and 0.24PIN–0.43PMN–0.33PT (PIN–PMN–0.33PT) single crystals were investigated over a temperature range ...
Yuhui Wan, Zhenrong Li, Ming Ma, Fei Li, Zhuo Xu, Shiji Fan, Xi Yao   +6 more
doaj   +1 more source

Magnetoelectric coupling in MnTiO3 [PDF]

, 2011
We give general arguments that show that the linear magnetoelectric effect in antiferromagnetic materials gives rise to a magnetocapacitance anomaly—a divergence of the dielectric constant at the magnetic ordering temperature TN that appears in an ...
Blake, G.R.,, Mostovoy, M.,, Mufti, N.,, Nugroho, A.A.,, Palstra, T.T.M.,, Riyadi, S.,   +5 more
core   +3 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Composition dependence of dielectric properties in Pb(Zn1∕3Nb2∕3)O3–PbTiO3–BaTiO3 (PZN–PT–BT) relaxor ferroelectric ceramics [PDF]

Journal of Advanced Dielectrics, 2017
Perovskite solid solution ceramics of PZN–PT–BT with several compositions were synthesized by solid-state reaction method. X-ray diffraction results indicate pure perovskite structures for all samples.
Qiang Gao, Li Jin, Yu Cui, Ye Zhao, Kun Yu, Xiang Shi, Xiaoyong Wei   +6 more
doaj   +1 more source

Effect of Sintering Conditions on the Electrical Properties of Lead-Free Piezoelectric Potassium Sodium Niobate-Based Ceramics

Crystals, 2022
Lead-free piezoelectric 0.92(K0.445Na0.5Li0.05)NbO3-0.08BaZrO3 (KNLN-BZ) ceramics were prepared via conventional sintering. Single-step, 2-step and 3-step temperature-controlled conditions were designed.
Yan Tang, Lingyan Wang, Wei Ren, Yi Quan, Jinyan Zhao, Zhe Wang, Kun Zheng, Jian Zhuang, Gang Niu   +8 more
doaj   +1 more source

Left-Handed Surface Waves in a Photonic Structure

, 2002
It is demonstrated that an isotropic left-handed medium can be constructed as a photonic structure consisting of two dielectric materials, one with positive and another with negative dielectric permittivities epsilon.
G. Shvets, Pendry, Smirnova, Smith, Smith, Spitzer, Valanju, Veselago   +7 more
core   +1 more source