Results 101 to 110 of about 1,329,190 (299)
Advanced Science, EarlyView.A hybrid semi‐transparent perovskite‐photovoltaic and concentrating solar‐thermal collector is developed to spectrally split sunlight for simultaneous electricity and heat generation. The design achieves thermal decoupling between the photovoltaic and thermal components, offering a promising route for efficient co‐harvesting of solar electricity and ...
Nada. A. Alati +8 more
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Controllability of 1-d coupled degenerate parabolic equations
Electronic Journal of Differential Equations, 2009 This article is devoted to the study of null controllability properties for two systems of coupled one dimensional degenerate parabolic equations.
Piermarco Cannarsa, Luz De Teresa
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Gradient bounds for solutions of nonlinear strictly elliptic equations, applications and extensions
ITM Web of Conferences, 2018 In this short manuscript, we briefly recall some well-known methods for obtaining gradient bounds of viscosity solutions for elliptic and parabolic equations.
Duc Nguyen Vinh
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On the parabolic potentials in degenerate‐type heat equation [PDF]
International Journal of Stochastic Analysis, 1991 Using distributions theory technique we introduce parabolic potentials for the heat equation with one time‐dependent coefficient (not everywhere positive and continuous) at the highest space‐derivative, discuss their properties, and apply obtained results to three illustrative problems.
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Advanced Science, EarlyView.This paper presents the process of integrating electronics directly into the body sheet of CurveQuad, a small origami robot that can self‐fold, crawl, and steer with a single actuator. The authors design a flexible printed circuit board for the body sheet: the key challenge is to navigate how embedding electronics affects the mechanical properties and ...
Xuelin Wu +6 more
wiley +1 more source
Karpatsʹkì Matematičnì Publìkacìï, 2014 The paper found the explicit form of the fundamental solution of Cauchy problem for the equation of Kolmogorov type that has a finite number groups of spatial variables which are degenerate parabolic.
H.P. Malytska, I.V. Burtnyak
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A Class of Degenerate Totally Nonlinear Parabolic Equations
Journal of Mathematical Analysis and Applications, 1996 The following initial-boundary value problem for a degenerate totally nonlinear parabolic equation is considered: \[ u_t=\beta (\phi (x,u_x)u_{xx} + f(x,u,u_x)),\quad (x,t)\in (0,1)\times (0,\infty ), \] \[ u_x(j,t)\in (-1)^j\beta_{j}(u(j,t)),\;j=0,1, \quad u(x,0)=u_0(x), \] as well as its higher space dimensional analogue.
Lin, Chin-Yuan, Fan, Li-Chang
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On the well-posedness of the Cauchy problem for a class of Pseudo-differential parabolic equations
, 2018 In this work we study the well-posedness of the Cauchy problem for a class of pseudo-differential parabolic equations in the framework of Weyl-H\"ormander calculus.
Julio Delgado, Delgado Valencia, JC
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Coexistence of Large Nernst Effect and Axis‐Dependent Conduction Polarity in Semimetal MoSi2
Advanced Electronic Materials, EarlyView.MoSi2${\rm MoSi}_2$ is a rare material in which axis‐dependent conduction polarity (ADCP) and a large ordinary Nernst effect (ONE) coexist. The pronounced ONE (199μVK−1$199\,\umu \mathrm {V}\,\mathrm {K}^{-1}$) originates from nearly perfect carrier compensation, high mobility, and likely phonon drag, while ADCP arises from mixed‐dimensionality of the ...
Orest Pavlosiuk, Maciej J. Winiarski
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Electronic Journal of Differential Equations, 2016 We study a class of second-order degenerate parabolic equations in divergent form. We prove two analogues of the Harnack inequality, one for non-negative weak solutions, an another for non-negative solutions.
Sarvan T. Huseynov
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