Results 31 to 40 of about 3,094,315 (304)

Kinematic-mapping-model-guided analysis and optimization of 2-PSS&1-RR circular-rail parallel mechanism for fully steerable phased array antennas

Defence Technology
This paper presents a systematic methodology for analyzing and optimizing an innovative antenna mount designed for phased array antennas, implemented through a novel 2-PSS&1-RR circular-rail parallel mechanism.
Guodong Tan, Xiangfei Meng, Xuechao Duan, Lulu Cheng, Dingchao Niu, Shuai He, Dan Zhang   +6 more
doaj   +1 more source

Vibration Control of Marine Top Tensioned Riser with a Single Tuned Mass Damper

Journal of Marine Science and Engineering, 2020
The study of the Tuned Mass Damper (TMD) on Top Tensioned Risers (TTRs) through the application of numerical analysis is of great significance for marine engineering.
Jixiang Song, Tao Wang, Weimin Chen, Shuangxi Guo, Dingbang Yan   +4 more
doaj   +1 more source

Study on the Population Carrying Scale of Arable Land in Southern Xinjiang, China

Land
Research on the carrying capacity of land resources and their outputs to population size will be able to better serve the ecological governance of food security. This paper analyzes the population carrying capacity level of southern Xinjiang by using the
Huanran Liu, Jianli Ding, Xiang Li, Jinjie Wang   +3 more
doaj   +1 more source

A semi-implicit discrepancy model of Reynolds stress in a higher-order tensor basis framework for Reynolds-averaged Navier–Stokes simulations

AIP Advances, 2021
With the rapid development of artificial intelligence, machine learning algorithms are becoming more widely applied in the modification of turbulence models. In this paper, with the aim of improving the prediction accuracy of the Reynolds-averaged Navier–
Zhen Zhang, Shuran Ye, Bo Yin, Xudong Song, Yiwei Wang, Chenguang Huang, Yaosong Chen   +6 more
doaj   +1 more source

Study on mathematical model construction of typical gorge wind field

Engineering Applications of Computational Fluid Mechanics, 2023
Wind conditions in gorges have a significant impact on the safe operation of high-speed trains, due to the lack of a unified gorge wind model and the limitations of traditional simulations that use oversimplified wind models, the complex wind speed ...
Jionghao Cheng, Zhenxu Sun, Shengjun Ju, Guowei Yang, Jun Mao, Dilong Guo   +5 more
doaj   +1 more source

Organoborane Coupling Reactions (Suzuki Coupling)

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +2 more sources

Prediction of Potential Suitability Areas for Ephedra sinica in the Five Northwestern Provinces of China Under Climate Change

Agriculture
Ephedra sinica (E. sinica) holds significant economic and medicinal importance and is predominantly found in arid areas. Due to the limitations of environmental variables, growth habits, and human activities, the production and suitability areas of E ...
Yibo Xu, Xiaohuang Liu, Lianrong Zhao, Jiufen Liu, Xiaofeng Zhao, Hongyu Li, Chao Wang, Honghui Zhao, Ran Wang, Xinping Luo, Liyuan Xing   +10 more
doaj   +1 more source

Supercavitating flow around high-speed underwater projectile near free surface induced by air entrainment

AIP Advances, 2018
Cavitating flow near free surface is a complicated issue and may provide new inspiration on high-speed surface cruising. This study observes stable supercavitating flow as a new phenomenon in a launch experiment of axisymmetric projectile when the upper ...
Chang Xu, Jian Huang, Yiwei Wang, Xiaocui Wu, Chenguang Huang, Xianqian Wu   +5 more
doaj   +1 more source

Analysis of the Coal Fluidization Mining Process with the Continuous-Discontinuous Coupled Particle-Block Method

Geofluids, 2022
In situ fluidization mining is a promising method which shows considerable potential for reducing the ecological influence impacts of coal mining. During fluidization mining, coal gangue will be separated from the ores, filled back, and returned to the ...
Jing Li, Chun Feng, Xinguang Zhu, Yiming Zhang   +3 more
doaj   +1 more source

Controllable Coupling in Phase-Coupled Flux Qubits

, 2006
We propose a scheme for tunable coupling of phase-coupled flux qubits. The phase-coupling scheme can provide a strong coupling strength of the order of Josephson coupling energy of Josephson junctions in the connecting loop, while the previously studied ...
Kim, Mun Dae
core   +1 more source