Results 71 to 80 of about 7,214 (219)

Variations in Satellite Charge Drag Coefficient With Solar Cycle

Space Weather, Volume 24, Issue 1, January 2026.
Abstract Ionospheric plasma interaction with charged satellite surfaces can lead to a substantial increase in orbital drag. In this context, natural events related to solar activity can have a detrimental effect on a satellite's lifespan and introduce uncertainty in orbital trajectory predictions.
A. Fazel‐Najafabadi, J. Glowacki, T. N. Parashar   +2 more
wiley   +1 more source

Gas Flow and Heat Transfer in an Enclosure Induced by a Sinusoidal Temperature

Journal of Applied Fluid Mechanics, 2019
The heat transfer and flow characteristics of rarefied gas confined within a square cavity are investigated. The cavity upper-wall is subjected to a symmetrical sinusoidal temperature with respect to its midline.
J. Baliti, M. Hssikou, M. Alaoui
doaj  

Multiscale simulation of rarefied gas dynamics via direct intermittent GSIS-DSMC coupling

Advances in Aerodynamics
The general synthetic iterative scheme (GSIS) has proven its efficacy in modeling rarefied gas dynamics, where the steady-state solutions are obtained after dozens of iterations of the Boltzmann equation, with minimal numerical dissipation even using ...
Liyan Luo, Lei Wu
doaj   +1 more source

Solution to Asymptotic Stability in Tracking Control of Nonlinear Systems With Control Input Differentiation, Actuator Dynamics, and Saturation Constraints

IET Control Theory &Applications, Volume 20, Issue 1, January/December 2026.
The work delivers a rigorous mathematical framework for asymptotic tracking in nonlinear systems that explicitly include control‐input derivatives, actuator dynamics, and input saturation, with Lyapunov‐based proofs establishing convergence and robustness under their coupled effects.
Mohammad Reza Homaeinezhad, Mir Mohammad Mousavi Alvar, Ali Soordi, Mojtaba Aghaei, Ali Hatefikousha, Taha Charehjoo   +5 more
wiley   +1 more source

On the Expedient Solution of the Boltzmann Equation by Modified Time Relaxed Monte Carlo (MTRMC) Method

Journal of Applied Fluid Mechanics, 2018
In the present study, a modified time relaxed Monte Carlo (MTRMC) method is developed for numerical solution of the Boltzmann equation in rarefied regimes.
M. Eskandari, S. Salman Nourazar
doaj  

Pumping Speed Measurement and Analysis for the Turbo Booster Pump

International Journal of Rotating Machinery, 2004
This study applies testing apparatus and a computational approach to examine a newly designed spiral-grooved turbo booster pump (TBP), which has both volume type and momentum transfer type vacuum pump functions, and is capable of operating at optimum ...
R. Y. Jou, S. C. Tzeng, J. H. Liou
doaj   +1 more source

Twice‐Weekly Oral Iron–Folic Acid Supplementation Is an Alternative to a Daily Regimen in Pregnancy: An Open‐Label, Randomized, Active‐Controlled, Noninferiority Trial

Anemia, Volume 2026, Issue 1, 2026.
Background The weekly intake of oral iron–folic acid in pregnancy is an optional recommendation by the World Health Organization and the International Federation of Gynaecology and Obstetrics (FIGO). Although evidence was limited to justify its benefit or harm in Ethiopia, weekly iron–folic acid could be optional in the regions of Ethiopia.
Serawit Lakew Chillo, Endrias Markos Woldesemayat, Mesay Hailu Dangisso, Mihnea-Alexandru Găman   +3 more
wiley   +1 more source

Thermal properties of an impurity immersed in a granular gas of rough hard spheres [PDF]

, 2017
We study in this work the dynamics of a granular impurity immersed in a low-density granular gas of identical particles. For description of the kinetics of the granular gas and the impurity particles we use the rough hard sphere collisional model.
Garzó, Vicente, Lasanta, Antonio, Reyes, Francisco Vega, Santos, Andrés   +3 more
core   +1 more source

Pereskia aculeata Leaves as a Functional Food: Neurobehavioral and Redox Homeostasis Protection of Aged Drosophila melanogaster Against Paraquat Exposure

Journal of Food Biochemistry, Volume 2026, Issue 1, 2026.
The aim of this study was to investigate the nutritional composition and functional properties of Pereskia aculeata Miller, known as Ora‐pro‐nóbis (OPN), and to evaluate whether dietary supplementation enhances resistance to paraquat‐induced oxidative stress in aged Drosophila melanogaster.
Jackeline De Miranda Schmidt, Elize Musachio, Débora Luísa Filipetto Pulcinelli, Maria Eduarda Chelotti, Nathália Cardoso de Afonso Bonotto, Caroline Prado Rehbein, Eliana Jardim Fernandes, Gustavo Petri Guerra, Maria Denise Schimith, Ivana Beatrice Mânica Da Cruz, Verônica Farina Azzolin, Cindhy Suely da Silva Medeiros, Caroline dos Santos Giuliani, Aline Sobreira Bezerra, Fernanda Barbisan, Anupama Bose   +15 more
wiley   +1 more source

Differences in plasmatic and CSF Alzheimer's Disease biomarkers considering ApoE genotype in mild cognitive impairment and subjective cognitive decline

Alzheimer's &Dementia, Volume 21, Issue S2, December 2025.
Abstract Background Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder, and ApoE ε4 allele is the most relevant genetic risk factor for sporadic AD. Although it is well‐known that ApoE ε4 is related to brain amyloidosis, much less is known whether this genetic risk factor may influence Aβ and tau plasmatic levels in the mildest ...
Beatriz Ramos Lucente, Isadora Cristina Ribeiro, Luis E. Santos, Ananssa Silva, Thaís Lopes Pinheiro, Liara Rizzi, Ítalo Karmann Aventurato, Brenda Costa Gonçalves, Marjorie Cristina Rocha da SIlva, Gustavo Bruniera Peres Fernandes, Fernanda G. De Felice, Marcio Luiz Figueredo Balthazar   +11 more
wiley   +1 more source