Results 51 to 60 of about 392,892 (335)
Convergence of the one-dimensional Cahn-Hilliard equation
, 2012 We consider the Cahn-Hilliard equation in one space dimension with scaling a small parameter \epsilon and a non-convex potential W. In the limit \espilon \to 0, under the assumption that the initial data are energetically well-prepared, we show the ...
Bellettini, Giovanni +3 more
core +1 more source
, 2020 A Stefan problem (also Stefan task) is a particular kind of boundary value problem for a partial differential equation (PDE), adapted to the case in which a phase boundary can move with time. The classical Stefan problem aims to describe the temperature distribution in a homogeneous medium undergoing a phase change, for example ice passing to water ...
openaire +1 more source
Photon‐Sphere Modes in Curved Optical Microcavities: A Black‐Hole Analogue Laser
Advanced Science, EarlyView.An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Chenni Xu +9 more
wiley +1 more source
Newton-Product Integration for a Stefan Problem with Kinetics [PDF]
Journal of Sciences, Islamic Republic of Iran, 2011 Stefan problem with kinetics is reduced to a system of nonlinear Volterra integral equations of second kind and Newton's method is applied to linearize it. Product integration solution of the linear form is found and sufficient conditions for convergence
K. Ivaz
doaj
Backstepping Control of the One-Phase Stefan Problem
, 2016 In this paper, a backstepping control of the one-phase Stefan Problem, which is a 1-D diffusion Partial Differential Equation (PDE) defined on a time varying spatial domain described by an ordinary differential equation (ODE), is studied. A new nonlinear
Diagne, Mamadou +3 more
core +1 more source
Advanced Science, EarlyView.We introduce a new membrane‐active antifungal design, Gua‐SMACS‐16, that exhibits high potency and single‐species selectivity for C. tropicalis while sparing other close species in the Candida genus. Moreover, when combining with caspofungin, a clinical antifungal drug inhibiting 1,3‐β‐glucan synthase, they exhibit ultra‐strong synergy across a panel ...
Tianjiao Dai +8 more
wiley +1 more source
Agribusiness, EarlyView.ABSTRACT Amidst a recent surge in US goat meat imports to meet growing demand, this study contributes to the meat demand literature by examining consumer preferences for goat meat, a relatively healthy and environmentally friendly alternative to other popular meats.
Binod Khanal +2 more
wiley +1 more source
The motion of the soil freezing front with account of the temperature distribution [PDF]
E3S Web of Conferences, 2019 The Stefan problem in the heat propagation in a two-phase region, which is relevant in the study of the processes of motion of the freezing boundary, taking into account the properties of both frozen and thawed soil, has been considered.
Arinshtein Eduard +3 more
doaj +1 more source
American Journal of Agricultural Economics, EarlyView.Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt +6 more
wiley +1 more source
Electronic Journal of Differential Equations, 2018 From the one-dimensional consolidation of fine-grained soils with threshold gradient, it can be derived a special type of Stefan problems where the seepage front, because of the presence of this threshold gradient, exhibits the features of a moving ...
Julieta Bollati, Domingo A. Tarzia
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