Results 61 to 70 of about 368,612 (246)

A robust method of lines solution for singularly perturbed delay parabolic problem

Alexandria Engineering Journal, 2020
A numerical method is proposed to solve a non-autonomous singularly perturbed parabolic differential equation with a time delay. The solution is obtained by a step by step discretisation process. First the spatial derivatives are discretised via a fitted
Nana Adjoah Mbroh, Suares Clovis Oukouomi Noutchie, Rodrigue Yves M’pika Massoukou   +2 more
doaj   +1 more source

Opposite Trends in Glass Transition and Vogel Temperatures in Long‐Chain Branched Poly(l‐Lactic Acid)

Journal of Polymer Science, EarlyView.
The glass transition temperature (Tg), as determined by conventional DSC, increases from 326 K to 329 K while the Vogel temperature (Tv) decreases from 271 K to 255 K as the number of branch points per molecule increases from 0 to 3.3. ABSTRACT Poly(l‐lactic acid) (PLLA) is widely used as both a commodity thermoplastic and for engineering applications,
Rui Zhang, Mengxue Du, Bao Wang, Yue Yu, Rene Sattler, Paul‐Maximilian Runge, Pengju Pan, Mario Beiner, Holm Altenbach, Katalee Jariyavidyanont, René Androsch, Christoph Schick   +11 more
wiley   +1 more source

Efficient Runge–Kutta Scheme Combined with Richardson Extrapolation for Nonlinear Fractional Partial Differential Equations Involving the Fractional Laplacian

Fractal and Fractional
In this paper, an efficient numerical framework combined with RK4 method and Richardson extrapolation is proposed to solve nonlinear time-dependent partial differential equations involving the Riesz fractional Laplacian operator (−Δ)s.
Yifei Hao, Yiyin Liang, Shichao Yi
doaj   +1 more source

Object‐based deep learning for probabilistic convective‐core nowcasting from satellite data

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Convective cores detected from Meteosat infrared imagery are represented as compact physical objects to generate probabilistic nowcasts up to 6 h ahead. A spatio‐temporal transformer models interactions among evolving core populations and produces gridded probability forecasts across the western Sahel.
Mendrika Rakotomanga, Douglas J. Parker, Nadhir Ben Rached, Seonaid R. Anderson, Cornelia Klein, Steven C. Wells   +5 more
wiley   +1 more source

Evaluation of Richardson extrapolation in computational fluid dynamics

, 2002
The concept of Richardson extrapolation is evaluated for improving the solution accuracy of two well-investigated two-dimensional flow problems: (1) laminar cavity flows with Re = 100 and 1,000; and (2) the Reynolds-averaged backward-facing step ...
Shyy, W., Appukuttan, A., Wu, J., Garbey, M., J. Wu, W. Shyy, A. Appukuttan, M. Garbey   +7 more
core   +1 more source

A Social and Solidarity Economy Network's Evolution on Sustainability Discourses: Weak Versus Strong Sustainability

Sustainable Development, EarlyView.
ABSTRACT This study explores innovations concerning sustainability discourses in the case of a Social and Solidarity Economy (SSE) network. We analyse the incorporation of discursive elements characteristic of strong sustainability versus weak sustainability approaches in the different Solidarity Economy Principles Charters over time (2000, 2011, 2022),
Jon Ruiz‐de‐Galarreta, Unai Villalba‐Eguiluz, Pablo Arrillaga   +2 more
wiley   +1 more source

Mitigating the Impact of Drought on Inland Water Transport: A System Dynamics Approach

Systems Research and Behavioral Science, EarlyView.
ABSTRACT In recent years, droughts have disrupted goods transport on Dutch waterways, causing production losses in the hinterland and reputational damage to inland water transport (IWT). As future droughts are expected to be more extreme, the question is how IWT can stay reliable.
Stefan Salome, Arjen Ros, Marjolein Mens, Willem L. Auping, Jan H. Kwakkel   +4 more
wiley   +1 more source

NUMERICAL MODELLING OF WIND LOADS. VERIFICATION AND VALIDATION FOR THE KEMEROVO MUSEUM, THEATRE AND EDUCATION COMPLEX

International Journal for Computational Civil and Structural Engineering
This paper presents the results of numerical modelling of mean and peak pressure coefficients for a unique facility, conducted within the verification procedure of Ansys Fluent in the RAASN system.
Alexander Belostotsky, Oleg Goryachevsky, Sergey Saiyan, Alexandra Efimova   +3 more
doaj   +1 more source

Comprehensive Studies on Using the Richardson extrapolation techniques for Pricing American options under Alternative Stochastic Processes

, 2013
[[abstract]]Following from the innovation of Geske and Johnson (1984), the Richardson extrapolation technique is frequently used to price American options.
Chuang-Chang Chang , Jun-Biao Linb,Wei-Che Tsaic, Yaw-HueiWangc
core  

Research Progress on Thermal Runaway and Thermal Management of Lithium‐Ion Batteries

Safety Science and Technology, EarlyView.
This review summarizes thermal runaway mechanisms, propagation pathways, mitigation strategies, and intelligent thermal management technologies for lithium‐ion batteries, highlighting the transition from passive heat dissipation to integrated safety regulation through advanced cooling, barrier materials, sensing, machine learning, and digital‐twin ...
Songrong Li, Wenjia Zhao, Yutong Zhang, Xianyong Wu, Zhongxue Chen   +4 more
wiley   +1 more source