Results 11 to 20 of about 197,579 (259)

Tribological Properties of Attapulgite Nanofiber as Lubricant Additive for Electric-Brush Plated Ni Coating

Lubricants, 2023
In order to expand the application field of attapulgite in tribology, the tribological properties of attapulgite as a lubricant additive on electric-brush plated Ni coating were investigated using the ball-disc contact mode of a SRV-IV friction and wear ...
Feng Nan, Dong Wang
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Minimum Values of Voltage, Current, or Power for the Ignition of Fire

Fire, 2022
Under some circumstances, fires can be ignited by electric current. The two main mechanisms for this are arcing/sparking and hot surfaces. However, it has been viewed for a long time that this will not happen if the voltage, current, energy, or power are
Vytenis Babrauskas
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A novel time–frequency–space method with parallel factor theory for big data analysis in condition monitoring of complex system

International Journal of Advanced Robotic Systems, 2020
The spatial information of the signal is neglected by the conventional frequency/time decompositions such as the fast Fourier transformation, principal component analysis, and independent component analysis. Framing of the data being as a three-way array
Liu Yang, Hanxin Chen, Yao Ke, Lang Huang, Qi Wang, Yuzhuo Miao, Li Zeng   +6 more
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A Boundary-Element Analysis of Crack Problems in Multilayered Elastic Media: A Review

Mathematics, 2023
Crack problems in multilayered elastic media have attracted extensive attention for years due to their wide applications in both a theoretical analysis and practical industry.
Lei Lan, Jiaqi Zhou, Wanrong Xu, Gongbo Long, Boqi Xiao, Guanshui Xu   +5 more
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Investigation of Laser-Welded EH40 Steel Joint Stress with Different Thicknesses Based on a New Heat Source Model

Metals
High-strength steel (HSS) plates are widely used due to their superior performance. However, residual stresses generated during welding can exacerbate the initiation of fatigue cracks, and the accurate prediction of residual stresses is crucial ...
Ruolin Wu, Xingyu Wu, Shuai Hu, Chaomei He, Huanhuan Li, Yuan Liu   +5 more
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Sensitivity analysis of IEC spark test apparatus

Meikuang Anquan, 2021
The sensitivity of spark test apparatus is affected by environmental factors, tungsten wire electrode and cadmium disk electrode. In this paper, the intersection / separation trajectories of tungsten wire electrode and cadmium disk electrode in a test ...
ZHANG Yong
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Heat Transfer Enhancement and Flow Resistance Characteristics in a Tube with Alternating Corrugated-Smooth Segments

Inventions
To mitigate the inherent high flow resistance of conventional corrugated tubes, a novel design with alternating clockwise/counterclockwise corrugated segments separated by smooth sections is proposed.
Junwen Cheng, Jiahao Zhu, Xin Wen, Haodong Yu, Wei Lin, Zuqiang Xin, Jiuyang Yu   +6 more
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The Influence Mechanism of Deformation on the Precipitation Behavior and Mechanical Properties of 7075 Aluminum Alloy During Hot Forming-Quenching Integrated Process

Metals
The hot forming-quenching integrated process (HFQ®) organically combines the deformation and heat treatment, which can improve the forming performance of aluminum alloy while ensuring the final strength of formed parts.
Huanhuan Li, Xinhang Zhang, Wei Dai, Wei Yan, Chaomei He, Jiake Luo, Mengxing Li, Ruolin Wu, Dang Wang   +8 more
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Property Changes of Chopped Glass Fiber-Reinforced Sheet Molding Compound Composite in Acid-Base Environment

International Journal of Polymer Science
To investigate the influence of acid-base environments on the properties of chopped fiber-reinforced resin matrix composites, corresponding unsealed specimens were prepared.
Qi Chen, Yazhong Xia, Jiuyang Yu, Tianyi Zhang, Bowen Liu, Yaonan Dai   +5 more
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Development and application of inline inspectors in low-pressure gas pipelines with small curvature radii

You-qi chuyun, 2023
A specialized inline magnetic leakage inspector has been developed for low-pressure natural gas gathering and transmission pipelines with small curvature radii in oilfields.
LIANG Shoucai, SUN Hao, SUN Chao, MA Yan, LIU Wanqiang   +4 more
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