Results 41 to 50 of about 2,630 (183)

Dynamic Sliding Mode Control of Nonlinear Systems Using Neural Networks [PDF]

AUT Journal of Modeling and Simulation, 2018
In this paper, dynamic sliding mode control (DSMC) of nonlinear systems using neural networks is proposed. In DSMC, the chattering is removed due to the integrator placed before the input control signal of the plant.
A. Karami-Mollaee, H. Shanechi
doaj   +1 more source

Integrating agro‐residue valorization and clean hydrogen production: coconut fiber‐based catalysts for NaBH4 hydrolysis

Biofuels, Bioproducts and Biorefining, Volume 20, Issue 4, Page 1798-1820, July/August 2026.
Abstract A novel phosphoric acid‐treated green coconut fiber (GCF‐C) was developed as a catalyst for hydrogen production from the hydrolysis of sodium borohydride (NaBH4). Characterization techniques confirmed structural modifications, including X‐ray diffraction, scanning electron microscopy, X‐ray fluorescence, Fourier transform infrared, and ...
Isabelly Silveira Freitas, Francisco Izaias da Silva Aires, Dayana Nascimento Dari, Jacob Tchiyeke António Kandjila, Maurício Quintas Salamba, Diego Lomonaco, Monalisa Moura de Oliveira, Pierre Basílio Almeida Fechine, Rafael Leandro Fernandes Melo, Alan Silva de Menezes, Marcos Carlos de Mattos, Leonardo Farias Serafim, Maria Cristiane Martins de Souza, Ada Amelia Sanders Lopes, John Herbert da Silva Felix, Eveline de Abreu Menezes, José Cleiton Sousa dos Santos   +16 more
wiley   +1 more source

Multiscale simulation of interacting turbulent and rarefied gas flows in the DSMC framework

Theoretical and Applied Mechanics Letters
A multiscale stochastic-deterministic coupling method is proposed to investigate the complex interactions between turbulent and rarefied gas flows within a unified framework.
Liyan Luo, Songyan Tian, Lei Wu
doaj   +1 more source

Clinical, Radiological, and Immunohistological Distinctions Between Limbic‐Predominant and Typical Alzheimer's Disease: A Systematic Review

Brain and Behavior, Volume 16, Issue 7, July 2026.
Abstract Background Alzheimer's disease (AD) is the most common cause of dementia worldwide and one of the leading causes of morbidity and mortality among elderly people. It is characterized by generalized brain atrophy, especially affecting the hippocampus and medial temporal lobe.
Guilherme Linha Secco, Kashif Qureshi, Murtaja Satea, Pedro Henrique Karpinski, Kim Wouters, Mateus Cordeiro Merlim da Silva, Sravan Reddy Ganta, Enzo von Quednow, Edgar Daniel Guzmán‐Ríos, Khalil St Brice, Mahi Dsouza, Ailton Fernandes Junior, Noor Najah Noori, Bipin Chaurasia, Kivanc Yangi   +14 more
wiley   +1 more source

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

Zero-Width Quasi-Sliding Mode Band in the Presence of Non-Matched Uncertainties

Energies, 2021
Sliding mode control strategies are well known for ensuring robustness of the system with respect to disturbance and model uncertainties. For continuous-time plants, they achieve this property by confining the system state to a particular hyperplane in ...
Paweł Latosiński, Andrzej Bartoszewicz
doaj   +1 more source

Interactions of Sublimated Frost With Volcanic Plumes: Modeling Io's SO2 Atmosphere Using the DSMC Method

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract Io's tenuous atmosphere consists primarily of sulfur dioxide (SO2 ${\text{SO}}_{2}$) with observed column densities of approximately 1016−1017 $1{0}^{16}-1{0}^{17}$ cm−2 ${\text{cm}}^{-2}$. However, it remains uncertain whether the sublimation of SO2 ${\text{SO}}_{2}$ surface frost or volcanic outgassing is the primary source of the SO2 ...
Leander Schlarmann, Audrey Vorburger, Tim Mosimann, Nicolas Thomas, Peter Wurz   +4 more
wiley   +1 more source

Investigation of concentration variation of the components of a three-component gas mixtures in the radial and axial direction of a gas centrifuge machine under “total reflux flow” conditions by using the DSMC method [PDF]

مجله علوم و فنون هسته‌ای, 2019
In this paper, using a new combinatory meshing technique in the axisymmetric coordinate, a MCC-DSMC solver is introduced. Using this solver, the flow and the concentration variation inside a centrifuge machine in a rigid body rotation mode with the DSMC ...
S Yousefi Nasab, J Karimi- Sabet, J Safdari, A Norouzi, E Amini   +4 more
doaj   +1 more source

A collective collision operator for DSMC [PDF]

AIP Conference Proceedings, 2001
A new scheme to simulate elastic collisions in particle simulation codes is presented. The new scheme aims at simulating the collisions in the highly collisional regime, in which particle simulation techniques typically become computationally expensive. The new scheme is based on the concept of a grid-based collision field.
openaire   +1 more source

Fatty Liver Index Shows Poor Discrimination for MRI‐Measured Hepatic Steatosis in African Compared with European Adults

Liver International Communications, Volume 7, Issue 2, June 2026.
ABSTRACT Background and Aim The Fatty Liver Index (FLI) is a proxy for hepatic steatosis, but its performance against magnetic resonance imaging (MRI) is unknown in African populations. We evaluated the discriminatory performance of the FLI for detecting hepatic steatosis in European men (EM) and West African men (WAM) in the UK, and Black South ...
Asanda Mtintsilana, Kwazi Gabuza, Melony C. Fortuin‐de Smidt, Jon Hauksson, Oluwatoyosi Bello, Olah Hakim, Gráinne Whelehan, Tommy Olsson, Louise M. Goff, Julia H. Goedecke   +9 more
wiley   +1 more source