Results 51 to 60 of about 7,214 (219)

An Internal Model Based—Sliding Mode Control for Open-Loop Unstable Chemical Processes with Time Delay

ChemEngineering, 2023
This paper presents a dynamic sliding mode control (DSMC) for open-loop unstable chemical or biochemical processes with a time delay. The controller is based on the sliding mode and internal model control concepts.
Christian Camacho, Hernan Alvarez, Jorge Espin, Oscar Camacho   +3 more
doaj   +1 more source

“Steak Dry Aging”: An Innovative Approach to Producing High‐Yield, High‐Quality Dry‐Aged Beef

Journal of Food Science, Volume 91, Issue 4, April 2026.
ABSTRACT This study evaluated a novel steak dry‐aging (StDA) protocol in which portioned beef steaks were dry‐aged until reaching an average weight loss of 15% and subsequently wet‐aged to achieve a total aging time of either 14 or 28 days. The new protocol was compared with conventional dry aging (DA) for 28 days and unaged controls.
Jean Carlos dos Santos, Angélica Sousa Guimarães, Lethicia Olímpio Bueno, Lorrany Ramos do Carmo, Márcia Cristina Teixeira da Silveira, Alcinéia de Lemos Souza Ramos, Leandro Sâmia Lopes, Eduardo Mendes Ramos   +7 more
wiley   +1 more source

Validation of DSMC mass flow modeling for transsonic gas flows in micro-propulsion systems

Frontiers in Mechanical Engineering, 2023
Introduction: In the present work, an inflow model for the DSMC method is presented and validated. The approach is based on inflow mass flow rate and temperature and is particularly suitable for arbitrary nozzle flow cases with higher density, subsonic ...
R. Groll, T. Frieler
doaj   +1 more source

Direct Simulation of Low-Pressure Supersonic Gas Expansions and its Experimental Verification

, 2008
The use of gas expansions to generate atomic or molecular beams has become a standard technique in nuclear and hadron physics for the production of polarized ion beams and gas targets.
Alexander Naß, Bird, Brown, Erhard Steffens, Haberland, Haeberli, Iannotta, Koch, Miller, Naß, Stock, von Engel, Winkler, Young   +13 more
core   +1 more source

Combined therapy with dutasteride and tadalafil vs dutasteride or tadalafil monotherapy in benign prostatic hyperplasia: a randomised phase III trial

BJU International, Volume 137, Issue 4, Page 698-707, April 2026.
Objectives To evaluate the efficacy and safety of a fixed‐dose combination (FDC) of dutasteride and tadalafil vs monotherapy in patients with benign prostatic hyperplasia (BPH). Patients and Methods This phase III trial enrolled 667 patients. After screening and washout, eligible patients were stratified by the baseline International Prostate Symptom ...
Seung Wook Lee, Seung Hwan Lee, Jae Heon Kim, Joon Hwa Noh, Jun Ho Lee, U‐Syn Ha, Cheol Young Oh, Taek Won Kang, Gyeongseop Lee, Sangchul Lee, Deok Hyun Han, Jun Hyun Han, Sang Hoon Song, Hyun Jun Park, Byung Ha Chung, Gyeong Eun Min, In Gab Jeong, Kyung Hyun Moon, Won Tae Kim, Ji Youl Lee, Choung‐Soo Kim   +20 more
wiley   +1 more source

High Vectorization Ratio Coding of DSMC Method Analysis.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1999
Conventional DSMC method analysis requires huge execution time in spite of its simple calculation method and use of high performance computer. This is because its analysis code has low vectorization ratio. In order to improve the vectorization ratio, in this study, the following ideas were introduced to the code : (1) random access array for particle ...
Yoshinori NAKAYAMA, Haruki TAKEGAHARA
openaire   +2 more sources

Chemistry Composition and Bioaccessibility Study of Phenolic Compounds and Carotenoids of New Brazilian Biofortified Sweet Potato “CIP BRS Nuti”

Food Chemistry International, Volume 2, Issue 1, Page 23-33, March 2026.
Phenolic compounds of sweet potato CIP BRS Nuti were evaluated for the first time. Catechin, epicatechin, and procyanidin B1 exhibited high bioaccessibility. ABSTRACT Sweet potatoes biofortified in carotenoids have been an alternative to combat malnutrition in vulnerable populations. This work is the first comprehensive study of the bioactive potential
Maria Carla Cândido da Silva, Larissa Iris da Silva Monteiro, Darlanna de Souza Prado, Ana Júlia de Brito Araújo Carvalho, Marciane Magnani, Alexandre Furtado Silveira Mello, Erbs Cintra de Souza Gomes, Marcos dos Santos Lima   +7 more
wiley   +1 more source

Particle-based hybrid and multiscale methods for nonequilibrium gas flows

Advances in Aerodynamics, 2019
Over the past half century, a variety of computational fluid dynamics (CFD) methods and the direct simulation Monte Carlo (DSMC) method have been widely and successfully applied to the simulation of gas flows for the continuum and rarefied regime ...
Jun Zhang, Benzi John, Marcel Pfeiffer, Fei Fei, Dongsheng Wen   +4 more
doaj   +1 more source

Data-driven nonlinear constitutive relations for rarefied flow computations

Advances in Aerodynamics, 2021
To overcome the defects of traditional rarefied numerical methods such as the Direct Simulation Monte Carlo (DSMC) method and unified Boltzmann equation schemes and extend the covering range of macroscopic equations in high Knudsen number flows, data ...
Wenwen Zhao, Lijian Jiang, Shaobo Yao, Weifang Chen   +3 more
doaj   +1 more source

Unified Gas-kinetic Scheme with Multigrid Convergence for Rarefied Flow Study

, 2017
The unified gas kinetic scheme (UGKS) is a direct modeling method based on the gas dynamical model on the mesh size and time step scales. With the implementation of particle transport and collision in a time-dependent flux function, the UGKS can recover ...
Xu, Kun, Zhong, Chengwen, Zhu, Yajun
core   +2 more sources