检索结果-南通市图书馆

The　Optimization　of　the　PDA　Optical　System

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Chinese Journal of Lasers 1995年第6期B4卷 530-536页

作者： HOU Qingwen ZENG Zhoumo SUN Jiazi YANG Xueyou (Dept. of Precision Instrument Engineering, Tianjin University, Tianjin 300072, China)received 22 Apr. 1995 revised manuscript received 5 june 1995(Supported by the Doctoral Fund Set by the State Education C Tianjin Univ Tianjin China

ＴｈｅＯｐｔｉｍｉｚａｔｉｏｎｏｆｔｈｅＰＤＡＯｐｔｉｃａｌＳｙｓｔｅｍ￥ＨＯＵＱｉｎｇｗｅｎ；ＺＥＮＧＺｈｏｕｍｏ；ＳＵＮＪｉａｚｉ；ＹＡＮＧＸｕｅｙｏｕ（Ｄｅｐｔ．ｏｆＰｒｅｃｉｓｉｏｎＩｎｓｔｒｕｍｅｎｔＥｎｇ... 详细信息

ＴｈｅＯｐｔｉｍｉｚａｔｉｏｎｏｆｔｈｅＰＤＡＯｐｔｉｃａｌＳｙｓｔｅｍ￥ＨＯＵＱｉｎｇｗｅｎ；ＺＥＮＧＺｈｏｕｍｏ；ＳＵＮＪｉａｚｉ；ＹＡＮＧＸｕｅｙｏｕ（Ｄｅｐｔ．ｏｆＰｒｅｃｉｓｉｏｎＩｎｓｔｒｕｍｅｎｔＥｎｇｉｎｅｅｒｉｎｇ，ＴｉａｎｊｉｎＵ...

关键词： phase Doppler anemometry(PDA) laser measurement optimal design

Upconversion　Fluorescence　of　Er2O3　Doped　BaF2-TeO2　and　PbF1-TeO2　Oxyhalide　Tellurite　Glasses

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Chinese Journal of Lasers 1995年第6期B4卷 557-562页

作者： HU Lin JIANG Zhonghong HU Wentao SONG Xiuyu(Shanghai Indstitute of Optics and Fine Mechanics, Academia Sinica, O. for 800-216, Shanghai 201800, China)received 28 Mar. 1995 revised manuscript received 6 june 1995 Shanghai Inst of Optics and Fine Mechanics Academia Sinica Shanghai China

ＵｐｃｏｎｖｅｒｓｉｏｎＦｌｕｏｒｅｓｃｅｎｃｅｏｆＥｒ２Ｏ３ＤｏｐｅｄＢａＦ２－ＴｅＯ２ａｎｄＰｂＦ１－ＴｅＯ２ＯｘｙｈａｌｉｄｅＴｅｌｌｕｒｉｔｅＧｌａｓｓｅｓ￥ＨＵＬｉｎ；ＪＩＡＮＧＺｈｏｎｇｈｏｎｇ；ＨＵＷｅ... 详细信息

ＵｐｃｏｎｖｅｒｓｉｏｎＦｌｕｏｒｅｓｃｅｎｃｅｏｆＥｒ２Ｏ３ＤｏｐｅｄＢａＦ２－ＴｅＯ２ａｎｄＰｂＦ１－ＴｅＯ２ＯｘｙｈａｌｉｄｅＴｅｌｌｕｒｉｔｅＧｌａｓｓｅｓ￥ＨＵＬｉｎ；ＪＩＡＮＧＺｈｏｎｇｈｏｎｇ；ＨＵＷｅｎｔａｏ；ＳＯＮＧＸｉｕｙｕ...

关键词： upconversion fluorescence oxyhalide tellurite glass Er3+ dopant

A　New　Filter　Technique　for　Image　of　Electronic　Speckle　Pattern　Interferometric　Fringe

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Chinese Journal of Lasers 1995年第6期B4卷 509-513页

作者： DAI Songping MA Shining LIU Ying(Department of Applied Physics ,Tianjin University, Tianjin, 300191, China)(received & Mar. 1995 revised manuscript received 24 Apr. 1995) Tianjin Univ Tianjin China

ＡＮｅｗＦｉｌｔｅｒＴｅｃｈｎｉｑｕｅｆｏｒＩｍａｇｅｏｆＥｌｅｃｔｒｏｎｉｃＳｐｅｃｋｌｅＰａｔｔｅｒｎＩｎｔｅｒｆｅｒｏｍｅｔｒｉｃＦｒｉｎｇｅ￥ＤＡＩＳｏｎｇｐｉｎｇ；ＭＡＳｈｉｎｉｎｇ；ＬＩＵＹｉｎｇ（Ｄｅｐ... 详细信息

ＡＮｅｗＦｉｌｔｅｒＴｅｃｈｎｉｑｕｅｆｏｒＩｍａｇｅｏｆＥｌｅｃｔｒｏｎｉｃＳｐｅｃｋｌｅＰａｔｔｅｒｎＩｎｔｅｒｆｅｒｏｍｅｔｒｉｃＦｒｉｎｇｅ￥ＤＡＩＳｏｎｇｐｉｎｇ；ＭＡＳｈｉｎｉｎｇ；ＬＩＵＹｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＰ...

关键词： image processing threshold density filter

Wavelength-Flattened　1×3　Single-Mode　Fibre-Optical　Splitters

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Chinese Journal of Lasers 1995年第6期B4卷 515-520页

作者： HUANG Yong ZENG Qingji(Photonic Technology Laboratory ,Institute of Optical Fiber Technology ,Shanghai Jiao Tong University, Shanghai 200052, china)(received 21 Mar. 1995 revised manuscript received 11 May 1995) Shanghai Jiao Tong Univ Shanghai China

Ｗａｖｅｌｅｎｇｔｈ－Ｆｌａｔｔｅｎｅｄ１×３Ｓｉｎｇｌｅ－ＭｏｄｅＦｉｂｒｅ－ＯｐｔｉｃａｌＳｐｌｉｔｔｅｒｓ￥ＨＵＡＮＧＹｏｎｇ；ＺＥＮＧＱｉｎｇｊｉ（ＰｈｏｔｏｎｉｃＴｅｃｈｎｏｌｏｇｙＬａｂｏｒａｔｏｒｙ，Ｉ... 详细信息

Ｗａｖｅｌｅｎｇｔｈ－Ｆｌａｔｔｅｎｅｄ１×３Ｓｉｎｇｌｅ－ＭｏｄｅＦｉｂｒｅ－ＯｐｔｉｃａｌＳｐｌｉｔｔｅｒｓ￥ＨＵＡＮＧＹｏｎｇ；ＺＥＮＧＱｉｎｇｊｉ（ＰｈｏｔｏｎｉｃＴｅｃｈｎｏｌｏｇｙＬａｂｏｒａｔｏｒｙ，ＩｎｓｔｉｔｕｔｅｏｆＯｐｔｉｃａｌ...

关键词： wavelength-flattened 1 × 3 splitter optical fiber coupling

Study　On　Laser　Fiber　Diameter　Measurement　Instrument

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Chinese Journal of Lasers 1995年第6期B4卷 543-548页

作者： ZHOU Ge LIU Zeyi LI Heqiao MAO Yi ZHANG Yimo(Institute of Optoelectronic & Precision Engineering ☆Dept. ofMathematics,Tianjin, Tiajin 300072, China)received 5 Dec. 1994 revised manuscript received 17 Apr. 1995 Tianjin Univ Tianjin China

ＳｔｕｄｙＯｎＬａｓｅｒＦｉｂｅｒＤｉａｍｅｔｅｒＭｅａｓｕｒｅｍｅｎｔＩｎｓｔｒｕｍｅｎｔ￥ＺＨＯＵＧｅ；ＬＩＵＺｅｙｉ；ＬＩＨｅｑｉａｏ；ＭＡＯＹｉ；ＺＨＡＮＧＹｉｍｏ（ＩｎｓｔｉｔｕｔｅｏｆＯｐｔｏｅｌｅｃｔｒ... 详细信息

ＳｔｕｄｙＯｎＬａｓｅｒＦｉｂｅｒＤｉａｍｅｔｅｒＭｅａｓｕｒｅｍｅｎｔＩｎｓｔｒｕｍｅｎｔ￥ＺＨＯＵＧｅ；ＬＩＵＺｅｙｉ；ＬＩＨｅｑｉａｏ；ＭＡＯＹｉ；ＺＨＡＮＧＹｉｍｏ（ＩｎｓｔｉｔｕｔｅｏｆＯｐｔｏｅｌｅｃｔｒｏｎｉｃ＆ＰｒｅｃｉｓｉｏｎＥｎｇ...

关键词： optical power spectrum fiber diameter distribution

Effects of the Composition of Electrodeposited Fe-Ni-P Alloy on the Thermostability and Magnetic Properties

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Journal of Materials Science & Technology 1997年第2期13卷 137-140页

作者： Chenghui GAO Baiyang ZHOU (Institute for Materials Research, Fuzhou University, Fuzhou 350002, China)(manuscript received February 22, 1996, in revised form june 3, 1996) Institute for Materials Research Fuzhou University Fuzhou 350002 China

The magnetic properties, structure defects of electrodeposited Fe-Ni-P alloys with various compositions and the thermostability at amorphous state have been studied by DSC, positron annihilation and electronic integrating instrument methods. The results show that the thermostability of amorphous Fe-Ni-P alloys increases with Fe content. Emergence and recrystallization of stable phases defer as the P content of the coating increases. The minimum H-c, B-r and P-h occur at 9.4 P (wt pet) content. Maximum H-c, B-r and P-h occur at the weight ratio of Fe to Ni equaling to 1/9.

关键词： Ni Fe Effects of the Composition of Electrodeposited Fe-Ni-P Alloy on the Thermostability and Magnetic Properties

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Multi-channel　Associative　Memory　Using　Liquid　Crystal　Photoelectric　Switches

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Chinese Journal of Lasers 1995年第6期B4卷 495-500页

作者： LI Heqiao LIU Wei ZHANG Yimo(Institute of Opto-electronics and Precision Engineering, Tianjin University,Tianjin 300072, China)received 9 May 1995 revised manuscript received 30 July 1995 Supported by National 863 High Technology Project. Tianjin Univ Tianjin China

Ｍｕｌｔｉ－ｃｈａｎｎｅｌＡｓｓｏｃｉａｔｉｖｅＭｅｍｏｒｙＵｓｉｎｇＬｉｑｕｉｄＣｒｙｓｔａｌＰｈｏｔｏｅｌｅｃｔｒｉｃＳｗｉｔｃｈｅｓ￥ＬＩＨｅｑｉａｏ；ＬＩＵＷｅｉ；ＺＨＡＮＧＹｉｍｏ（ＩｎｓｔｉｔｕｔｅｏｆＯ... 详细信息

Ｍｕｌｔｉ－ｃｈａｎｎｅｌＡｓｓｏｃｉａｔｉｖｅＭｅｍｏｒｙＵｓｉｎｇＬｉｑｕｉｄＣｒｙｓｔａｌＰｈｏｔｏｅｌｅｃｔｒｉｃＳｗｉｔｃｈｅｓ￥ＬＩＨｅｑｉａｏ；ＬＩＵＷｅｉ；ＺＨＡＮＧＹｉｍｏ（ＩｎｓｔｉｔｕｔｅｏｆＯｐｔｏ－ｅｌｅｃｔｒｏｎｉｃｓａｎ...

关键词： associative memory liquid crystal photoelectric switch four-channel parallelprocessing

High　Energy　He+　Ion　Implantation　in　Titanium　Doped　Sapphire　Crystal

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Chinese Journal of Lasers 1995年第6期B4卷 563-569页

作者： LIU Jianhua ZHANG Qiang DENG Peizhen GAN Fuxi(Shanghai Institute of Optics and Fine Mechanics , Academia Sinica,Shanghai 201800, China)received 3 Apr. 1995 revised manuscript received 7 Jun. 1995(Supported by the fund of national Lab. of information fun Shanghai Inst of Optics and Fine Mechanics Academia Sinica Shanghai China

The 2 MeV energy He＋ ion implantation for constructing planar optical waveguide in tunable laser crystal Ti:Al2O3 was performed. Lattice damage by ion bombardmentwas investigated by means of optical and SEM studies, different damage depths of about 5 μmand 10μm for Al-sublattice and O-sublattice of the Ti:Al2O3 substrate were obtained by electron probe microanalysis (EPMA).

关键词： high energy ion implantation optical waveguide Ti:Al2O3 crystal

Development of Mg-based Hydrogen Storage Alloy

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Journal of Materials Science & Technology 2001年第6期17卷 590-596页

作者： Lian bang WANG, Yijing WANG and Hualang YUAM Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China manuscript received june 30, 2000, in revised form September 20, 20001 Inst. of New Energy Mat. Chem. Nankai Univ. Tianjin 300071 China

Mg-based hydrogen storage alloys are considered as a promising candidate for hydrogen system because of its lightweight, high storage capacity, low price and rich mineral resources. In detail, we reviewed the preparation and properties of Mg-Ni-based hydrogen storage alloys. All kinds of attempts have been done to improve the hydriding and dehydriding behaviors. It is found that the partial substitution of foreign elements can decrease the hydrogen absorption temperature, especially the substitution of a more electronegative element, such as AI and Mn. Mechanical alloying (MA) and mechanical grinding (MG) are the most effective methods to improve the hydriding/dehydriding kinetics and electrochemical capacity, and decrease the desorption temperature. but the corrosion resistance is so poor that the 80% of maximum capacity is lost within ten cycles. Microencapsulation is a useful measurement for improving the corrosion resistance and electrocatalytic activity. fn order to improve the properties of the alloys for practical application, the alloys should have a large number of defects, which give activated sites, subsequently, MA, MG and electroless plating should be used to improve the hydriding/dehydriding kinetics and protect the surface of alloys, respectively. The new composite Mg-based alloys give a new way for the hydrogen storage material to practical application. Furthermore we put forward several problems which will be discussed in future.

关键词： Development of Mg-based Hydrogen Storage Alloy Ni

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