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Your search keyword '"朱伟"' showing total 25 results
Start Over Author "朱伟" Topic atomic and molecular physics, and optics
25 results on '"朱伟"'

8. Fabrication of Large-Scale Free-Standing Terahertz Wire Grid Polarizer by Femtosecond Laser Micro-Machining

Author

高焘 Gao Tao, 王杰 Wang Jie, 陈盈 Chen Ying, 王向峰 Wang Xiangfeng, 黄峰 Huang Feng, and 朱伟林 Zhu Weilin

Subjects
Wire grid, Fabrication, Materials science, Scale (ratio), Terahertz radiation, business.industry, Polarizer, Laser, Atomic and Molecular Physics, and Optics, law.invention, Machining, law, Femtosecond, Optoelectronics, Electrical and Electronic Engineering, business
Published
2020
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10. Calibration of industrial cameras using asymmetric circle center projection

Author

朱伟东 Zhu Wei-dong, 李江雄 Li Jiang-xiong, 封璞加 Feng Pu-jia, 曹良洪 Cao Liang-hong, and 梅标 Mei Biao

Subjects
Graphical projection, Planar projection, business.industry, Orthographic projection, 3D projection, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Camera auto-calibration, Pinhole camera model, Computer vision, Artificial intelligence, Projection (set theory), business, Camera resectioning, Mathematics
Published
2014
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11. Microscale laser shock peening on TiN coatings

Author

卫登辉 Wei Denghui, 朱伟 Zhu Wei, 黄舒 Huang Shu, 周建忠 Zhou Jianzhong, and 樊玉杰 Fan Yujie

Subjects
Materials science, Metallurgy, Peening, chemistry.chemical_element, engineering.material, Laser, Shot peening, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Shock (mechanics), Coating, chemistry, law, engineering, Tin, Elastic modulus, Microscale chemistry
Abstract

A TiN coating was modificated by microscale Laser Shock Peening(μLSP) based on the laser spot with a diameter of 300 μm to further improve its surface properties.An optical profiler and a nanomechanical test system were used to observe and measure the surface morphology,nano-hardness and the elastic modulus of the TiN coating in a peening area with different μLSP parameters.Experimental results show that a conical dent is formed in the peening area after μLSP,and the biggest depth is about 1.2 μm.The nano-hardness and elastic modulus are significantly changed in the center of peening area,and they are enhanced with the increase of laser energy in a certain range.When the laser energy is 250 mJ,both the nano-hardness and elastic modulus reach the maximum,which are 50.21 GPa and 402.8 GPa,respectively.Compared with the initial state of the TiN coating,they have been increased by 140% and 43.9%,respectively.

Published
2011
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12. Microstructural Quantitative Analysis and Mechanical Property Forecasting of Laser Tailored Welded Blank

Author

李新城 Li Xincheng, 高豪荣 Gao Haorong, 朱伟兴 Zhu Weixing, and 陈炜 Chen Wei

Subjects
Mechanical property, Materials science, law, Welding, Electrical and Electronic Engineering, Composite material, Laser, Quantitative analysis (chemistry), Blank, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention
Published
2010
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13. Analysis of Nonlinear Dynamic Behaviors for the Twin-Stripe Laser

Author

朱伟杰 Zhu Weijie, 张雅丽 Zhang Yali, and 张徐亮 Zhang Xuliang

Subjects
Nonlinear system, Materials science, Optics, law, business.industry, Electrical and Electronic Engineering, Laser, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention
Published
2010
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14. Image Processing of Dimples Based on Image Adaptive Thresholding by Index of Fuzziness

Author

李新城 Li Xin-Cheng, 朱伟兴 Zhu Wei-Xin, and 郭鑫鑫 Guo Xin-Xin

Subjects
Adaptive method, business.industry, Computer science, Computer image, Image processing, Thresholding, Measure (mathematics), Atomic and Molecular Physics, and Optics, Image (mathematics), Dimple, Computer vision, Artificial intelligence, business, Anthropogenic factor
Abstract

In order to minimize the impact of anthropogenic factor and to study the relationships between dimple diameter and common mechanical properties,computer image processing technology is introduced to measure and count the size and number of dimples in metallographic image formed by ductile fracture.The dimples are segmented very well by using an adaptive method for image thresholding based on index of fuzziness.An improved multiregional area algorithm based on Freeman chain is presented.It proves that this algorithm can detect and measure dimple diameter rapidly and accurately.It also provides quantitative results for further classify and analysis of dimples.

Published
2010
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15. Optimized Design of Transmission Grating Used for 13.4 nm Soft X-Ray Interference Lithography

Author

朱伟忠 Zhu Weizhong, 邰仁忠 Tai Renzhong, 吴衍青 Wu Yanqing, 陈敏 Chen Min, 徐洪杰 Xu Hongjie, and 王纳秀 Wang Naxiu

Subjects
Soft x ray, Optics, Materials science, business.industry, business, Diffraction grating, Atomic and Molecular Physics, and Optics, Next-generation lithography, Electronic, Optical and Magnetic Materials, Interference lithography
Published
2008
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16. Effects of Pyrimidine Ring with -NH2 on Transient Luminescence Properties in Ruthenium Complexes Bonding to DNA

Author

计亮年 Ji Liangnian, 朱伟玲 Zhu Weiling, 巢晖 Chao Hui, 刘学文 Liu Xuewen, 郑康成 Zheng Kangcheng, 于会娟 Yu Huijuan, and 王惠 Wang Hui

Subjects
chemistry.chemical_compound, Pyrimidine, Chemistry, chemistry.chemical_element, Transient (oscillation), Ring (chemistry), Photochemistry, Luminescence, Atomic and Molecular Physics, and Optics, DNA, Electronic, Optical and Magnetic Materials, Ruthenium
Published
2008
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22. Analysis and Expectation of Microscale Laser Shock Forming

Author

樊玉杰 Fan Yujie, 周建忠 Zhou Jianzhong, 徐增闯 Xu Zengchuang, 黄舒 Huang Shu, 范金荣 Fan Jinrong, 朱伟 Zhu Wei, and 高彬 Gao Bin

Subjects
Materials science, law, Mechanics, Electrical and Electronic Engineering, Laser, Atomic and Molecular Physics, and Optics, Microscale chemistry, Shock (mechanics), law.invention
Published
2012
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23. Research and Prospect on Micro-Scale Laser Shot Peening

Author

阮鸿雁 Ruan Hongyan, 樊玉杰 Fan Yujie, 卫登辉 Wei Denghui, 陈寒松 Chen Hansong, 朱伟 Zhu Wei, 黄舒 Huang Shu, 王呈栋 Wang Chengdong, and 周建忠 Zhou Jianzhong

Subjects
Materials science, Scale (ratio), law, business.industry, Electrical and Electronic Engineering, Aerospace engineering, Shot peening, Laser, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention
Published
2011
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24. Research on Mechanical Response of Copper Treated by Micro Laser Shock Peening Using Nanoindentation Technique

Author

黄舒 Huang Shu, 王维 Wang Wei, 周建忠 Zhou Jianzhong, 樊玉杰 Fan Yujie, 王呈栋 Wang Chengdong, 高彬 Gao Bin, 卫登辉 Wei Denghui, 范金荣 Fan Jinrong, and 朱伟 Zhu Wei

Subjects
Materials science, Peening, chemistry.chemical_element, Nanoindentation, Laser, Shot peening, Copper, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Shock (mechanics), chemistry, law, Electrical and Electronic Engineering, Composite material
Published
2011
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25. Study on Fatigue Crack Growth Performance of 6061-T6 Aluminum Alloy after Laser Shot Peening

Author

徐增闯 Xu Zengchuang, 周建忠 Zhou Jianzhong, 王呈栋 Wang Chengdong, 朱伟 Zhu Wei, 杨晶 Yang Jing, 杨小东 Yang Xiaodong, and 黄舒 Huang Shu

Subjects
Materials science, Laser peening, Metallurgy, Alloy, Peening, chemistry.chemical_element, Paris' law, engineering.material, Shot peening, Laser, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, chemistry, Aluminium, law, engineering, Electrical and Electronic Engineering
Published
2011
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