Results 51 to 60 of about 2,766 (314)

Thermionics in Topological Materials

Advanced Materials, EarlyView.
Thermionics is one of the fundamental energy conversion mechanisms in solid state systems. Recent development in topological materials opens new avenues in developing thermionic systems and devices. Due to the linear energy dispersion and topological protection of charge transport, these new materials are promising candidates for high efficiency ...
Sunchao Huang, Zihao Zhang, Youfeng Yang, Yuan Zheng, Abdullah Al‐Mamun, Shaomeng Wang, Zhi Li, Yubin Gong, Chao Zhang   +8 more
wiley   +1 more source

Bimodal Spin Switch Emerging from Hybridized 2D MoS2/Ferromagnet Interfaces

Advanced Materials, EarlyView.
This study demonstrates a novel integration of 2D semiconductors with ferromagnets using pulsed laser deposition, revealing hybridization‐driven spin manipulation. Vertical spin valves with MoS2 and Ni(111) show exotic bimodal spin signals and strong deviations from Jullière's model. These results highlight the « 2D spinterfaces » key role in unlocking
Hao Wei, Simon M.‐M. Dubois, Frederic Brunnett, Florian Godel, Cécile Carrétéro, Federico Panciera, Guillemin Rodary, Sophie Collin, Jane Daniel, Etienne Carré, Julian Peiro, Gilles Patriarche, Dominique Carisetti, Frédéric Petroff, Jean‐Christophe Charlier, Marie‐Blandine Martin, Pierre Seneor, Bruno Dlubak   +17 more
wiley   +1 more source

Increasing powers in a degenerate parabolic logistic equation [PDF]

Chinese Annals of Mathematics, Series B, 2013
15 ...
José Francisco Rodrigues, Hugo Tavares
openaire   +4 more sources

Advances in Topological Thermoelectrics: Harnessing Quantum Materials for Energy Applications

Advanced Materials, EarlyView.
Topological materials offer a novel platform for thermoelectric energy conversion through unique band features, including band inversion, linear Dirac bands, surface states, and Berry curvature. These quantum characteristics enable enhanced longitudinal and transverse thermoelectric effects, establishing topological thermoelectrics as a promising ...
Guangsai Yang, Lina Sang, Chao Zhang, Khay See, Alex Hamilton, Michael Fuhrer, Ning Ye, G. Jeffrey Snyder, Xiaolin Wang   +8 more
wiley   +1 more source

Relaxation approximations and bounded variation estimates for some partial differential equations

Electronic Journal of Differential Equations, 2002
In this paper, we introduce a new technique for studying solutions of bounded variation for some conservation laws of first order partial differential equations and for some degenerate parabolic equations in multi-dimensional space.
Francisco Caicedo, Yunguang Lu, Mauricio Sepulveda   +2 more
doaj  

Mie‐Resonant Metasurfaces with Controlled Silicon Oxidation in Electron‐Beam Deposition

Advanced Materials Interfaces, EarlyView.
Electron‐beam deposition is optimized to prevent silicon oxidation by controlling chamber pressure and deposition rate, yielding refractive index values comparable to other methods. This tunability enables precise control of optical properties. Mie‐resonant metasurfaces exhibit strong, tunable collective resonances, allowing the fabrication of silicon ...
Neal Raney, Viktoriia E. Babicheva
wiley   +1 more source

Regularity of random attractors for stochastic semilinear degenerate parabolic equations

Electronic Journal of Differential Equations, 2012
We consider the stochastic semilinear degenerate parabolic equation $$ du+[- operatorname{div}(sigma(x)abla u) + f(u) + lambda u]dt = gdt+ sum_{j=1}^{m}h_j{domega_j} $$ in a bounded domain $mathcal{O}subset mathbb {R}^N$, with the nonlinearity ...
Cung The Anh, Tang Quoc Bao, Nguyen Van Thanh   +2 more
doaj  

Cauchy-Dirichlet problem for the nonlinear degenerate parabolic equations

Abstract and Applied Analysis, 2005
We will investigate the nonexistence of positive solutions for the following nonlinear parabolic partial differential equation: ∂u/∂t=ℒu+V(w)up−1 in Ω×(0,T ...
Ismail Kombe
doaj   +1 more source

Flow Analysis in Pathological Microvascular Models by Ultrasound Localization Microscopy

Advanced Materials Technologies, EarlyView.
This study presents a new platform combining ultrasound localization microscopy with biomimetic gelatin phantoms to analyze flow dynamics in small vessels with narrowing or obstructions. Using microbubble tracking, the method enables high‐resolution velocity mapping in 100–500 µm channels, revealing flow changes in pathological microvascular conditions
Yarin Gershman, Grigori Shapiro, Tamar Mano, Tali Ilovitsh   +3 more
wiley   +1 more source

Stopping a Multilayered Co‐Axial Flow in a 3D Printed Microchannel with Cascaded Nozzles

Advanced Materials Technologies, EarlyView.
A microfluidic device with cascaded nozzles is 3D‐printed using two‐photon polymerization. Its microchannel, featuring integrated nozzles, sculpts multilayered co‐axial flows, enabling independent regulation of four co‐flowing streams to achieve variable layer thicknesses.
Helen Werner, Ebrahim TaiediNejad, Mehmet Akif Sahin, Moritz Leuthner, Peer Erfle, Oliver Hayden, Andreas Dietzel, Ghulam Destgeer   +7 more
wiley   +1 more source