Results 151 to 160 of about 118,579 (376)
Advanced Energy Materials, EarlyView.This review highlights the use of atomic layer deposition (ALD) for fabricating thermoelectric thin films with atomic‐scale control. Four material classes—chalcogenides, doped oxides, ternary oxides, and multilayered structures—are compared in terms of growth dynamics, structure–property relationships, and thermoelectric performance. The precise tuning
Jorge Luis Vazquez‐Arce +5 more
wiley +1 more source
Controllability of nonlinear degenerate parabolic cascade systems
Electronic Journal of Differential Equations, 2016 This article studies of null controllability property of nonlinear coupled one dimensional degenerate parabolic equations. These equations form a cascade system, that is, the solution of the first equation acts as a control in the second equation and
Mamadou Birba, Oumar Traore
doaj
Thermometric Based‐Microswimmers with Chemical and Optical Engines
Advanced Intelligent Systems, EarlyView.Temperature sensing at small scales is typically performed using passive luminescent particles. Here, an alternative approach is demonstrated by integrating upconversion thermometry into self‐propelled microswimmers powered by chemical fuels or light. This strategy offers a step toward dynamic thermal sensing at the microscale, relevant to both lab‐on ...
João M. Gonçalves, Katherine Villa
wiley +1 more source
Angewandte Chemie International Edition, EarlyView.Rare Earth Elements are known to form tri‐ and also di‐valent compounds. A few tetra‐valent compounds are also known, and recently the first molecules and crystals with Praseodymium(+5) were synthesized. By defining the atomic Ionization Quotient IQ, Ln(+4) compounds with suitable ligands appear possible for almost all 4f elements, while Pr(+5) may ...
Lian‐Wei Ye, W.H.Eugen Schwarz, Jun Li
wiley +1 more source
Large time behavior of solution to a class of doubly nonlinear parabolic equations
Electronic Journal of Differential Equations, 1994 solutions of the doubly degenerate parabolic equation $u_t={ m div} (|u|^{m-1}|abla u|^{p-2}abla u)$ in a cylinder $Omegaimes R^+$, with initial condition $u(x,0)=u_0(x)$ in $Omega$ and vanishing on the parabolic boundary $partialOmegaimes R^+$.
Juan J. Manfredi, V. Vespri
doaj
Compact Terahertz Dual‐Comb Spectroscopy with All‐Digitally Generated Adaptive Clock
Advanced Physics Research, EarlyView.This work demonstrates a compact terahertz dual‐comb spectrometer using an all‐digital adaptive clock generated on an FPGA. This system achieves high precision across 1.6 THz, resolves over 24 000 comb lines with kHz resolution, and offers enhanced stability and a simplified architecture compared to analog‐based methods.
Min Li +8 more
wiley +1 more source
Biotechnology and Bioengineering, EarlyView.ABSTRACT Studies on cell cryopreservation have been limited by the complexity of the freezing process and challenges on controlling ice formation, managing cooling rates, and optimizing cryoprotectant concentrations. The objective of this study is to evaluate the impact of bottom‐up and conventional radial freezing on the viability of mammalian cells ...
Rafaela Ouro Neves +8 more
wiley +1 more source
Carbon Energy, EarlyView.Herein, a rational photoanode design enhances H2O2 production via H2O oxidation in a PEC system, with Mo‐doped BiVO4 films and planar Co‐py co‐catalysts achieving optimal performance at 8.4 μmol·h−1·cm−2. Mo6+ doping tailors Fermi level alignment while Co‐py stabilizes *OH intermediates and promotes H2O2 desorption, as confirmed by operando analyses ...
Haisu Wu +6 more
wiley +1 more source
A Gagliardo-Nirenberg-type inequality and its applications to decay estimates for solutions of a degenerate parabolic equation [PDF]
, 2019 Марек Фила, Michael Winkler
openalex +1 more source