Results 41 to 50 of about 6,713,628 (313)
Results in Physics, 2021 In this paper, we study the influence of fractional time derivative on W-shaped profile and Modulation Instability gain in fractional Nonlinear Schrodinger Equation (NLSE) which could be used to describe the propagation of pulses in random media, optical
Alphonse Houwe +4 more
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Topology optimization of convective laminar heat transfer
ESAIM: Proceedings and Surveys, 2014 The topology optimization of systems subject to a fluid flow shows a wide potential for designing optimal and innovative structures. The present works apply the concepts of shape optimization and shape derivative to laminar flows ...
Marck Gilles +2 more
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The shape derivative for an optimization problem in lithotripsy
, 2016 In this paper we consider a shape optimization problem motivated by the use of high intensity focused ultrasound in lithotripsy. This leads to the problem of designing a Neumann boudary part in the context of the Westervelt equation, which is a common ...
B. Kaltenbacher, G. Peichl
semanticscholar +1 more source
Nonlinear Engineering, 2023 In this study, the Caputo-type fractional time-derivative is simulated by inserting a proportional time-delay into the field function of the perturbed-KdV equation.
Alquran Marwan +3 more
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Shape Reconstruction for Unsteady Advection-Diffusion Problems by Domain Derivative Method
Abstract and Applied Analysis, 2014 This paper is concerned with the numerical simulation for shape reconstruction of the unsteady advection-diffusion problems. The continuous dependence of the solution on variations of the boundary is established, and the explicit representation of domain
Wenjing Yan, Jian Su, Feifei Jing
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On a Shape Derivative Formula with Respect to Convex Domains
Journal of Convex Analysis, 2014 We extend to the case of W 1,1 loc functions a formula, known for C 1 functions, for the computation of the shape derivative of an integral cost functional with respect to a class of admissible convex domains.
A. Boulkhemair, A. Chakib
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld +5 more
wiley +1 more source
Study on the variable coefficient space–time fractional Korteweg de Vries equation
Ain Shams Engineering Journal, 2018 In this paper, the fractional Riccati method is modified for solving nonlinear variable coefficients fractional differential equations involving modified Riemann–Liouville derivative.
Emad A-B. Abdel-Salam, Gamal F. Hassan
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Mitochondrial RNA modifications shape metabolic plasticity in metastasis
Nature, 2022 Aggressive and metastatic cancers show enhanced metabolic plasticity1, but the precise underlying mechanisms of this remain unclear. Here we show how two NOP2/Sun RNA methyltransferase 3 (NSUN3)-dependent RNA modifications—5-methylcytosine (m5C) and its ...
S. Delaunay +13 more
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Symmetry sensitivities of Derivative-of-Gaussian filters [PDF]
, 2010 We consider the measurement of image structure using linear filters, in particular derivative-of-Gaussian (DtG) filters, which are an important model of V1 simple cells and widely used in computer vision, and whether such measurements can determine local
Griffin, LD +3 more
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