Results 121 to 130 of about 43,457 (303)
The Stefan problem for a hyperbolic heat equation
In this paper we consider the 1-phase, 1-dimensional Stefan problem corresponding to the hyperbolic heat equation obtained by relaxing the Fourier law, taking τqt + q = −kθx where q is the flux, θ the temperature, k the conductivity, and τ > 0 the ...
Hu, Bei, Friedman, Avner
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ABSTRACT In response to the increasing volume of parcels, last‐mile delivery innovations are exploring the integration of multiple delivery modes. The most prominent examples are delivery vans that, next to being the base for the delivery tasks of their human drivers, also function as mobile launching platforms for drones or autonomous delivery robots.
Nils Boysen +2 more
wiley +1 more source
Sharp interface limit of a homogenized phase field model for phase transitions in porous media
A homogenized phase field model for phase transitions in porous media is considered. By making use of the method of formal asymptotic expansion with respect to the interface thickness, a sharp interface limit problem is derived.
Martin Hopker
doaj
Technical wildness: Modernity, romanticism, and the technocratic turn in Scottish rewilding
Abstract Technical wildness is a new and increasingly influential culture of nature. This paper marks its emergence in Scotland in the early 2020s. Focusing on Scotland's rapidly evolving land management sector, the paper traces how private rewilding companies position science‐led land management and natural capital markets as the most effective ...
Theo Stanley
wiley +1 more source
The Classical Stefan Problem: Basic Concepts, Modelling and Analysis with Quasi-Analytical Solutions and Methods, New Edition, provides fundamental theory, concepts, modelling and analysis of the physical, mathematical, thermodynamical and metallurgical ...
Gupta, S. C.
core
Adaptive Sliding‐Mode Control of a Perturbed Diffusion Process With Pointwise In‐Domain Actuation
ABSTRACT A sliding mode–based adaptive control law is proposed for a class of diffusion processes featuring a spatially‐varying uncertain diffusivity and equipped with several point‐wise actuators located at the two boundaries of the spatial domain as well as in its interior.
Paul Mayr +3 more
wiley +1 more source
On Heat Conduction with Phase Change: Accurate Explicit Numerical Method
The one phase Stefan problem is discussed using the Goodman HBI method and an explicit numerical method including modified boundary immobilization scheme. The main advantage of the HBI method lie in the remarkable association of simplicity, flexibility
N. Sadoun, E.K Si-Ahmed, J. Legrand
doaj
Microwave-Convective Processing of Whipped Bread: Mathematical Modeling
Whipped yeast-free bakery products require effective energy supply to dough in order to optimize energy consumption, baking time, and quality. This article introduces a verified mathematical model of microwave and convective baking for whipped bread ...
Anatoly A. Khvostov +6 more
doaj +1 more source
Two-Phase Stefan Problem as the Limit Case of Two-Phase Stefan Problem with Kinetic Condition
Both one-dimensional two-phase Stefan problem with the thermodynamic equilibrium condition u(R(t),t)=0 and with the kinetic rule uε(Rε(t),t)=εRε′(t) at the moving boundary are considered.
Liu, Yuqing, Yi, Fahuai
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ABSTRACT Air transport is one of the fastest‐growing sources of greenhouse gas emissions, yet it remains one of the most difficult sectors to decarbonize. The sector's climate impact is amplified by two factors: the steady rise in passenger demand and the absence of commercially viable low‐carbon technologies for long‐haul flights.
Jouni K. Juntunen +2 more
wiley +1 more source

