Results 101 to 110 of about 102,040 (246)

A dynamical inverse problem for a parabolic equation [PDF]

Opuscula Mathematica, 2006
A problem of dynamical reconstruction of unknown distributed or boundary disturbances acting upon nonlinear parabolic equations is discussed. A regularized algorithm which allows us to reconstruct disturbances synchro with the process under consideration
Vyacheslav Maksimov
doaj  

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

Contributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik, H. M. Thomas, M. Kretschmer, M. Thoma   +3 more
wiley   +1 more source

Thermal Field–Enhanced Electro‐, Photo‐, and Photoelectrocatalytic Processes: Fundamentals, Material Design, and Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Overview of thermal field–enhanced electro‐, photo‐, and photoelectrocatalytic processes: fundamentals, material design, and applications. As a very attractive approach to energy conversion and storage, electrocatalytic, photocatalytic, and photoelectrocatalytic strategies have gained increasing attention in the past decades.
Ziyi Qiao, Lingyi Li, Bing He, Yunhai Zhu, Yihuang Chen, Yingkui Yang, Xueqin Liu   +6 more
wiley   +1 more source

On stability of nonlinear difference equations and some of their applications

Қарағанды университетінің хабаршысы. Математика сериясы
The issues of stability in solving nonlinear difference equations were considered. Based on a generalized difference analog of the well-known Bihari lemma, stability conditions for a trivial solution based on initial data were obtained, and an a priori ...
M.M. Aripov, D. Utebaev, B.D. Utebaev, R.Sh. Yarlashov   +3 more
doaj   +1 more source

Machine learning‐based prediction of elevated N terminal pro brain natriuretic peptide among US general population

ESC Heart Failure, Volume 12, Issue 2, Page 859-868, April 2025.
Abstract Aims Natriuretic peptide‐based pre‐heart failure screening has been proposed in recent guidelines. However, an effective strategy to identify screening targets from the general population, more than half of which are at risk for heart failure or pre‐heart failure, has not been well established.
Yuichiro Mori, Shingo Fukuma, Kyohei Yamaji, Atsushi Mizuno, Naoki Kondo, Kosuke Inoue   +5 more
wiley   +1 more source

Nonlinear Parabolic Equation on Manifolds

Journal of Mathematics Research, 2014
In this work we investigate the existence and the uniqueness of solution for a nonlinear differential equation of parabolic type on the lateral boundary Σ of a cylinder Q, cf. ( 1).An important part of our study is to transform this initial value problem into another one whose differential operator equation is of the type 9), where k is a positive ...
Gladson O. Antunes, Ivo F. Lopez, Maria Darci G. da Silva, L. A. Medeiros, Angela C. Biazutti   +4 more
openaire   +1 more source

Damping Modification Factors for Pile–Induced Filtering Effect

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Period–dependent Damping Modification Factors are usually applied to the 5%–damped pseudo–acceleration response spectrum at free field conditions to derive the seismic demand for structures with damping ratio other than 5%. Likewise, the response spectrum at the foundation level of pile–supported structures may differ from the free field ...
Emmanouil Rovithis, Maria Iovino, Dimitris Sotiriadis, Raffaele Di Laora   +3 more
wiley   +1 more source

Theoretical Model of Transient Regression of Thermoplastic Materials During Flame Spread: Vaporization; Permanent Mass Loss; Surface Shape

Fire and Materials, EarlyView.
ABSTRACT This article examines a transient, one‐dimensional model of surface regression during opposed flow flame spread over finite thickness, non‐charring thermoplastics. Gas to solid conductive transfer from the flame drives sample heating. The solid degrades into volatile fuel molecules in two stages: (1) the pre‐vaporization heat‐up stage and (2 ...
Indrek S. Wichman, Linwei Mou, Sarzina Hossain, Fletcher J. Miller, Sandra L. Olson   +4 more
wiley   +1 more source

Advection‐Pressure Splitting Schemes Applied to a Non‐Conservative 1D Blood Flow Model With Transport for Arteries and Veins

International Journal for Numerical Methods in Fluids, EarlyView.
We introduce new efficient and accurate first order finite volume‐type numerical schemes, for the non‐conservative one‐dimensional blood flow equations with transport, taking into account different velocity profiles. The framework is the flux‐vector splitting approach of Toro and Vázquez‐Cendón (2012), that splits the system in two subsystems of PDEs ...
Alessandra Spilimbergo, Eleuterio F. Toro, Annunziato Siviglia, Lucas O. Müller   +3 more
wiley   +1 more source

Positive Solutions of a Nonlinear Parabolic Partial Differential Equation

Abstract and Applied Analysis, 2014
We deal with the existence and uniqueness of positive solutions to a class of nonlinear parabolic partial differential equations, by using some fixed point theorems for mixed monotone operators with perturbation.
Chengbo Zhai, Shunyong Li
doaj   +1 more source