Results 31 to 40 of about 4,363,357 (287)

A study on anisotropic mesh adaptation for finite element approximation of eigenvalue problems with anisotropic diffusion operators [PDF]

, 2014
Anisotropic mesh adaptation is studied for the linear finite element solution of eigenvalue problems with anisotropic diffusion operators. The M-uniform mesh approach is employed with which any nonuniform mesh is characterized mathematically as a uniform
Huang, Weizhang, Wang, Jingyue
core   +1 more source

The Approximate Solution of Some Plane Boundary Value Problems of the Moment Theory of Elasticity

Advances in Mathematical Physics, 2016
We consider a two-dimensional system of differential equations of the moment theory of elasticity. The general solution of this system is represented by two arbitrary harmonic functions and solution of the Helmholtz equation.
Roman Janjgava
doaj   +1 more source

Evolutionary Approach to Lambert’s Problem for Non-Keplerian Spacecraft Trajectories

Aerospace, 2017
In this paper, we use differential evolution (DE), with best-evolved results refined using a Nelder–Mead optimization, to solve boundary-value complex problems in orbital mechanics relevant to low Earth orbits (LEO).
David W. Hinckley, Darren L. Hitt
doaj   +1 more source

Fuzzy Logic Analysis for Key Factors for Customer Loyalty in E-Shopping Environment

Frontiers in Psychology, 2021
Due to subjective evaluation and qualitative characteristics, the assessment processes of loyalty often cannot use the crisp value to express the final value.
Li-Xin Guo, Chih-Chen Lin, Po-Fang Huang, Shou-Yueh Jhou, Shih-Chih Chen, Fu-Sheng Tsai, Fu-Sheng Tsai, Fu-Sheng Tsai   +7 more
doaj   +1 more source

An efficient variable stepsize rational method for stiff, singular and singularly perturbed problems

Alexandria Engineering Journal, 2022
In this article, a new iterative method of the rational type having fifth-order of accuracy is proposed to solve initial value problems. The method is self-starting, stable, consistent, and convergent, whereas local truncation error analysis has also ...
Sania Qureshi, Amanullah Soomro, Evren Hincal, Jung Rye Lee, Choonkil Park, M.S. Osman   +5 more
doaj   +1 more source

Probe method and a Carleman function

, 2020
A Carleman function is a special fundamental solution with a large parameter for the Laplace operator and gives a formula to calculate the value of the solution of the Cauchy problem in a domain for the Laplace equation.
Aizenberg L, Astala K, Astala K, Bateman H, Bateman H, Calderón A P, Cheng J, Evgrafov M A, Ikehata M, Ikehata M, Ikehata M, Ikehata M, Ikehata M, Ikehata M, Ikehata M, Ikehata M, Ikehata M, Ikehata M, Ikehata M, Kirsch A, Kress R, Masaru Ikehata, Vekua I N, Vekua I N, Yarmukhamedov Sh, Yarmukhamedov Sh, Yarmukhamedov Sh, Yarmukhamedov Sh   +27 more
core   +1 more source

Multipoint Initial-Final Value Problem for Hoff Equation in Quasi-Sobolev Spaces

Journal of Computational and Engineering Mathematics, 2017
Summary: We consider an analog of the linear Hoff equation in quasi-Sobolev spaces with multipoint initial-final value condition. The research is based on the abstract results obtained for the Sobolev type equation with multipoint initial-final value condition in the quasi-Banach spaces of sequences.
Solov'ëva, Natal'ya Nikolaevna, Zagrebina, Sof'ya Aleksandrovna   +1 more
openaire   +2 more sources

Patient Activation in Childhood, Adolescent, and Young Adult Cancer Survivors: Current Insights and Implications for Survivorship Care—A Systematic Review From the e‐QuoL Project

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Patient activation—encompassing knowledge, confidence, and skills in managing individual's health—is a cornerstone of person‐centered care. However, its significance among childhood, adolescent, and young adult cancer survivors (CAYACS) remains unexplored. This article examines the application of the 13‐item Patient Activation Measure (
Charlotte Demoor‐Goldschmidt, Anne Maas, Gisela Michel, Amandine Bertrand, Kristen E. T. Thornton, Martine Bellanger, Anna‐Liesa Filbert, Desiree Grabow, Monica Muraca, Katharina Roser, Sara Oberti, Jelena Roganovic, Hanne Cathrine Lie   +12 more
wiley   +1 more source

On a final value problem for a nonhomogeneous fractional pseudo-parabolic equation

Alexandria Engineering Journal, 2020
En este artículo, estamos interesados en encontrar la función u(t,x), (t,x)∈[0,T)×Ω a partir de los datos finales u(T,x)=ϕ(x), satisface una ecuación pseudoparabólica fraccionaria no homogénea. El problema es estable para los casos σν, el problema está mal planteado (en el sentido de Hadamard).
Nguyen Hoang Luc, Devendra Kumar, Le Thi Diem Hang, Nguyen Huu Can   +3 more
openaire   +2 more sources

Imaging of High‐Risk Neuroblastoma: Recommendations From SIOPEN Radiology and Nuclear Medicine Specialty Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma is the most common extracranial solid tumor in early childhood. Its clinical behavior is highly variable, ranging from spontaneous regression to fatal outcome despite intensive treatment. The International Society of Pediatric Oncology Europe Neuroblastoma Group (SIOPEN) Radiology and Nuclear Medicine Specialty Committees ...
Annemieke Littooij, Catia Olianti, Herve Brisse, Pier Luigi Di Paolo, Maria Garganese, Tejas Kapadia, Jurgen Schaefer, Hugh Wallace, Simon Wan, Bart de Keizer, Irmina Sefic Pasic, Julian Rogasch   +11 more
wiley   +1 more source