Results 121 to 130 of about 307,407 (286)

Indium‐Doping Advances High‐Performance Flexible Ag2Se Thin Films

Advanced Science, EarlyView.
A “precursor doping strategy” is employed to realize In‐doping at Ag sites in Ag2Se thin films, boosting electrical conductivity while maintaining a high Seebeck coefficient, therefore achieving a high‐power factor of ≈26.3 µW cm−1 K−2 and ZT of ≈1.
Tianyi Cao, Xiao‐Lei Shi, Boxuan Hu, Siqi Liu, Wanyu Lyu, Meng Li, Sen Wang, Wenyi Chen, Wei‐Di Liu, Raza Moshwan, Tuquabo Tesfamichael, Jennifer MacLeod, Zhi‐Gang Chen   +12 more
wiley   +1 more source

A multiplicity result for a class of quasilinear elliptic and parabolic problems

Electronic Journal of Differential Equations, 1997
We prove the existence of infinitely many solutions for a class of quasilinear elliptic and parabolic equations, subject respectively to Dirichlet and Dirichlet-periodic boundary conditions.
M. R. Grossinho, Pierpaolo Omari
doaj  

The initial-boundary value problem for a nonlinear degenerate parabolic equation [PDF]

, 1991
Isamu Fukuda, Masayoshi Tsutsumi
openalex   +1 more source

Realizing High Performance in Flexible Mg3Sb2−xBix Thin‐Film Thermoelectrics

Advanced Science, EarlyView.
A p‐type Mg3Sb2−xBix thin film is prepared using a magnetron sputtering method combined with ex situ annealing. The performance and microstructural changes of the material are analyzed under varying Bi compositions. It is found that when x = 0.9, the Mg3Sb1.1Bi0.9 thin film achieved a power factor of 3.771 µW cm−1 K−2 and a ZT value of 0.242 at 500 K ...
Boxuan Hu, Xiao‐Lei Shi, Tianyi Cao, Min Zhang, Wenyi Chen, Siqi Liu, Meng Li, Weidi Liu, Zhi‐Gang Chen   +8 more
wiley   +1 more source

Recent advances and challenges in temperature monitoring and control in microfluidic devices

ELECTROPHORESIS, Volume 44, Issue 1-2, Page 268-297, January 2023., 2023
Abstract Temperature is a critical—yet sometimes overlooked—parameter in microfluidics. Microfluidic devices can experience heating inside their channels during operation due to underlying physicochemical phenomena occurring therein. Such heating, whether required or not, must be monitored to ensure adequate device operation.
Alejandro A. Dos‐Reis‐Delgado, Andrea Carmona‐Dominguez, Gerardo Sosa‐Avalos, Ivan H. Jimenez‐Saaib, Karen E. Villegas‐Cantu, Roberto C. Gallo‐Villanueva, Víctor H. Perez‐Gonzalez   +6 more
wiley   +1 more source

Inverse Design of Active‐Source Metamaterials for Thermal Camouflage with Arbitrary Active Sources

Advanced Science, EarlyView.
Active‐source metamaterials (ASM) revolutionize thermal camouflage by enabling the precise manipulation of heat signatures, transforming any active source into a desired thermal pattern. This breakthrough technology holds immense potential for infrared stealth, advanced thermal management, and energy‐efficient architecture, offering unprecedented ...
Xianrong Cao, Zifeng Tong, Yongle Nian, Jiachang Li, Yinuo Zhou, Zihao Zhang, Yixin Liu, Lei Gong, Zhengdong Cheng, Liqun He   +9 more
wiley   +1 more source

Carleman Estimates and null controllability of coupled degenerate systems [PDF]

arXiv, 2011
In this paper, we study the null controllability of weakly degenerate coupled parabolic systems with two different diffusion coefficients and one control force. To obtain this aim, we develop first new global Carleman estimates for degenerate parabolic equations with weight functions different from the ones in the previous works.
arxiv  

Existence and uniqueness for a degenerate parabolic equation with 𝐿¹-data [PDF]

, 1999
F. Andreu, José M. Mazón, S. de León, J. Toledo   +3 more
openalex   +1 more source

Enhancing Thermoelectric Performance of Cd₃P₂ by Alloying with Dirac Material Cd₃As₂

Advanced Electronic Materials, EarlyView.
This study demonstrates that alloying Cd₃P₂ with Dirac material Cd₃As₂ significantly enhances its thermoelectric performance. Key improvements include increased carrier mobility, reduced effective mass, and lower deformation potential, resulting in a doubled power factor and improved thermoelectric efficiency, which renders this material applicable for
Kunling Peng, Chenjian Fu, Yunzhen Du, Sikang Zheng, Meng Tian, Pengfei Gao, Jianjun Ying, Wenbin Yi, Xu Lu, Sheng Zhang, Guoyu Wang, Xiaoyuan Zhou   +11 more
wiley   +1 more source

Continuity estimates for degenerate parabolic double-phase equations via nonlinear potentials [PDF]

arXiv
In this article, we study regularity properties for degenerate parabolic double-phase equations. We establish continuity estimates for bounded weak solutions in terms of elliptic Riesz potentials on the right-hand side of the equation.
arxiv