Results 101 to 110 of about 1,545,883 (293)

Radial symmetric solutions of the Cahn-Hilliard equation with degenerate mobility

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2001
In this paper we study the radial symmetric solutions of the two-dimensional Cahn-Hilliard equation with degenerate mobility. We adopt the method of parabolic regularization.
Jingxue Yin, Changchun Liu
doaj   +1 more source

The Dirichlet Problem for a Certain Degenerate Parabolic Equation

open access: yes, 2015
The unique existence of the time-global solution is shown for a certain degenerate parabolic equation with a zero boundary condition.Articleapplication/pdf信州大学理学部紀要 32(1): 1-13(1997)departmental bulletin ...
KOBAYASHI, Yasumaro, ITAYA, Nobutoshi
core  

Rapid Solidification Brings Ultralow Thermal Conductivity and Superior Thermoelectric Performance for Intrinsic GeTe Alloy

open access: yesAdvanced Science, EarlyView.
Rapid solidification with glass fluxing is first applied to the intrinsic GeTe alloy and achieves large undercooling within 2 h. This enables partial retention of the high‐temperature cubic phase at room temperature and forms a crystallographically oriented α+β dual‐phase structure and a hierarchical defect network.
Guanghui Liu   +4 more
wiley   +1 more source

Analysis of Blowup for a Nonlinear Degenerate Parabolic Equation

open access: yes, 1995
In this paper the nonlinear degenerate parabolic equation ut = uα (Δu + u) subject to Dirichlet boundary conditions is studied. The finite time blowup result, together with an estimate of the blowup time, is found.
Chen, H.W.
core   +1 more source

Prepolymerization Enables On‐Demand Viscosity Tuning for Xolography of Soft Hydrogels

open access: yesAdvanced Science, EarlyView.
A facile in situ prepolymerization strategy enables on‐demand viscosity tuning across three orders of magnitude without external thickeners, transforming low‐viscosity resins into printable formulations for Xolography. The approach suppresses sedimentation, lowers curing dose, enables high‐fidelity support‐free fabrication, and produces advanced ...
Xichuan Li   +7 more
wiley   +1 more source

Hybrid Semi‐Transparent Perovskite‐Photovoltaics and Concentrated Solar‐Thermal Harvesting Collectors

open access: yesAdvanced 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
wiley   +1 more source

On the parabolic potentials in degenerate‐type heat equation [PDF]

open access: yesInternational 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.
openaire   +1 more source

Co‐Design Insights for Mechanically Active Flexible Printed Circuit Boards Through the CurveQuad Origami Robot

open access: yesAdvanced 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

A Class of Degenerate Totally Nonlinear Parabolic Equations

open access: yesJournal 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
openaire   +2 more sources

Synthesis Route‐Controlled Atomic Ordering Optimizes Thermoelectric Transport in Bi2SbSe3

open access: yesAdvanced Science, EarlyView.
Atomic ordering modulation enhancing the thermoelectric performance of Bi2SbSe3. The solid‐state synthesis route redistributes Sb atoms between the Bi2Se3 quintuple layers and the Bi bilayers in the BiSe structure, resulting in a more disordered Bi2SbSe3 than the one‐pot synthesized counterpart.
Xiaoqian Wang   +18 more
wiley   +1 more source

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