Results 81 to 90 of about 33,836 (269)

Research on Data Transfer Method for Multi-physics Coupling Based on Unstructured Mesh Monte Carlo

Yuanzineng kexue jishu
In the design and optimization of reactors, to ensure their safe and reliable operation, a multiphysics coupling analysis is necessary. Among these, the neutronic-thermal-mechanical coupling and neutronic-thermal-fluid coupling analyses have a ...
LI Rui1, LIU Shichang1, , WANG Lipeng2, WANG Zhenyu1, CHEN Yixue1
doaj   +1 more source

Instability Mechanisms and Wellbore-Stabilizing Drilling Fluids for Marine Gas Hydrate Reservoirs: A Review

Energies
The safe exploitation of marine natural gas hydrates, a promising cleaner energy resource, is hindered by reservoir instability during drilling. The inherent temperature–pressure sensitivity and cementation of hydrate-bearing sediments leads to severe ...
Qian Liu, Bin Xiao, Guanzheng Zhuang, Yun Li, Qiang Li   +4 more
doaj   +1 more source

Shapeshifting Liquid Metal Droplets for Soft Fluidic Machines

Advanced Materials, EarlyView.
This study presented a liquid metal shape shifting strategy which harnesses Lorentz force, surface tension and fluid instabilities to achieve autonomous fluidic power. By using a liquid metal droplet as a mobile current carrier, this strategy enables the development of low‐voltage, self‐oscillating pumps that outperform existing soft pumps.
Saba Firouznia, Christian Romero, Hemma Philamore, Andrew Conn, Martin Garrad, Jonathan Rossiter   +5 more
wiley   +1 more source

A Multiphysics Framework for Fatigue Life Prediction and Optimization of Rocker Arm Gears in a Large-Mining-Height Shearer

Computation
This study investigates premature fatigue failure in rocker arm gears of large-mining-height shearers operating at alternating ±45° working angles, where insufficient lubrication generates non-uniform thermal -stress fields.
Chunxiang Shi, Xiangkun Song, Weipeng Xu, Ying Tian, Jinchuan Zhang, Xiangwei Dong, Qiang Zhang   +6 more
doaj   +1 more source

Targeted inertization with flue gas injection in fully mechanized caving gob for residual coal spontaneous combustion prevention with CFD modeling

Energy Science & Engineering, 2020
To effectively prevent and control the spontaneous combustion of residual coal at the bottom of a large fully mechanized gob space, we proposed a targeted inertization technology based on the injection of power plant flue gas.
Ge Huang, Jiren Wang, Fengwei Dai, Cunbao Deng   +3 more
doaj   +1 more source

Transistor‐Level Activation Functions via Two‐Gate Designs: From Analog Sigmoid and Gaussian Control to Real‐Time Hardware Demonstrations

Advanced Materials, EarlyView.
Screen gate‐based transistors are presented, enabling tunable analog sigmoid and Gaussian activations. The SA‐transistor improves MRI classification accuracy, while the GA‐transistor supports precise Gaussian kernel tuning for forecasting. Both functions are implemented in a single device, offering compact, energy‐efficient analog AI processing ...
Junhyung Cho, Youngmin Han, Won Woo Lee, Youngwoo Yoo, Kannan Udaya Mohanan, Chang‐Hyun Kim, Junhwan Choi, Young‐Joon Kim, Wonjun Shin, Hocheon Yoo   +9 more
wiley   +1 more source

Simulation of Core Physics Benchmark VERA Based on Monte Carlo Code JMCT

Yuanzineng kexue jishu, 2023
Numerical reactor is aimed to show the physical phenomena by means of high-fidelity numerical simulations. Monte Carlo method is commonly used in numerical reactor.
LIU Peng;SHI Dunfu;LI Rui;FU Yuanguang;DENG Li
doaj  

Emergent Motility of Self‐Organized Particle‐Giant Unilamellar Vesicle Assembly

Advanced Materials, EarlyView.
Giant unilamellar vesicles (GUVs), when combined with silica particles under alternating electric fields, spontaneously self‐assemble into motile structures. Asymmetric particle decoration induces fluid flows that propel the assemblies, enabling persistent motion and reversible control.
Selcan Karaz, Gaurav Gardi, Mertcan Han, Saadet Fatma Baltaci, Mukrime Birgul Akolpoglu, Metin Sitti   +5 more
wiley   +1 more source

Improved high-fidelity multiphysics modeling of pulsed operation of the annular core research reactor

Frontiers in Nuclear Engineering
Sandia National Laboratories’ Annular Core Research Reactor (ACRR) is a unique research reactor, using UO2-BeO fuel and operating primarily in pulsed mode. To better understand the physical characteristics of the fuel, the distribution of heat generation
Emory Colvin, Todd S. Palmer
doaj   +1 more source

Timestepping for Barely Coupled Multiphysics

Resúmenes de Mecánica Computacional
Over the last five decades computational mechanics has matured rapidly. In each of the core disciplines -fluid dynamics, structural dynamics, combustion, heat transfer, acoustics, electromagnetics, mass transfer, control, etc.- robust and efficient numerical techniques have been developed, and a large code base of academic, open source and commercial ...
openaire   +1 more source