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超短脉冲强激光场中氙的高次谐波

中国激光 2002年第11期29卷 979-982页

作者：夏元钦陈建新王骐哈尔滨工业大学光电子技术研究所可调谐激光技术国家级重点实验室黑龙江哈尔滨150001

在静态气室中,利用线偏振的掺钛蓝宝石(Ti:sapphire)超短脉冲激光(中心波长795nm,脉宽105fs,重复频率10Hz,单脉冲能量50mJ),获得氙气中5～17次(40～160nm)谐波的软X射线激光辐射。实验中着重观察了高次谐波谱线强度随激光强度的变化规律... 详细信息

在静态气室中,利用线偏振的掺钛蓝宝石(Ti:sapphire)超短脉冲激光(中心波长795nm,脉宽105fs,重复频率10Hz,单脉冲能量50mJ),获得氙气中5～17次(40～160nm)谐波的软X射线激光辐射。实验中着重观察了高次谐波谱线强度随激光强度的变化规律,由于激光强度已经接近甚至超过饱和,高次谐波谱相对强度随入射激光强度增加而增长到一定程度后开始下降,同时观察到介质的离子谱,证实了高次谐波谱的产生与离子辐射之间的转换关系。

关键词：超短脉冲激光氙气高次谐波掺钛蓝宝石离子辐射

A new pseudorandom number generator based on a complex number chaotic equation

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chinese Physics B 2012年第9期21卷 142-148页

作者：刘杨佟晓筠 School of Computer Science and Technology Harbin Institute of Technology

In recent years, various chaotic equation based pseudorandom number generators have been proposed. However, the chaotic equations are all defined in the real number field. In this paper, an equation is proposed and proved to be chaotic in the imaginary axis. And a pseudorandom number generator is constructed based on the chaotic equation. The alteration of the definitional domain of the chaotic equation from the real number field to the complex one provides a new approach to the construction of chaotic equations, and a new method to generate pseudorandorn number sequences accordingly. Both theoretical analysis and experimental results show that the sequences generated by the proposed pseudorandom number generator possess many good properties.

关键词： chaotic equation pseudorandom number generator complex number

Anti-idiotype down-regulation of PRRSV vaccination against highly pathogenic PRRSV infection

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Anti-idiotype down-regulation of PRRSV vaccination against h...

The influence of smoothing by spectral dispersion on the beam characteristics in the near field

中国畜牧兽医学会畜牧兽医生物技术学分会暨中国免疫学会兽医免疫分会第八次学术研讨会

作者： ZHOU En-Min~(1*),WANG Gang~(1,2),SONG Teng-fei~(1,2),YU Ying~1,CAI Xue-hui~2,LIU Yong-gang~2,SHI Wen-da~2,RONG Fu-long~2,DONG Jian-guo~2,LIU He~2,WU Jia-nan~2 (1.College of veterinary Medicine,Department of Preventive veterinary Medicine,Shandong Agricultural University,Taian,271018,china 2. key laboratory of State veterinary Biotechnology,harbin veterinary research institute, chinese academy of agricultureal Science,harbin 150001,china)

Our previous studies demonstrated that pigs infected with PRRSV produced two sets of auto-anti-idiotypic antibodies (auto-Ab2s) against idiotypic antibodies to M and Gp5 protein(1,2).Pigs produced auto-Ab2s at early stage of infection(35 days post infection,DPI) were identified as non-virus carriers,whereas that had auto-Ab2s at later stage of infection(77 DPI) became virus

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chinese Physics B 2013年第10期22卷 323-327页

作者：樊心民吕志伟林殿阳王雨雷 national key laboratory of Science and Technology on Tunable Laser Harbin Institute of Technology

The influences of SSD on the beam characteristics in the near held are investigated. Results snow that it the SSD parameters are increased, the laser intensity modulation increases while fluence modulation decreases, which is attributed to the temporal and spatial variation of the SSD pulse phase. The variations of intensity and fluence modulations with the SSD parameters are given. The simulation results are presented along with a method for choosing appropriate SSD parameters according to the variations and the requirements of applications.

关键词： smoothing by spectral dispersion intensity modulation degree fluence modulation degree

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激光成像雷达数字信号预处理技术

中国激光 2003年第10期30卷 909-911页

作者：王海虹王骐陆威李琦尚铁梁哈尔滨工业大学可调谐激光技术国家级重点实验室黑龙江哈尔滨150001

研究了激光成像雷达的信号预处理技术 ,采用分区存储方法实现实时成像显示技术 ,系统采用距离选通技术 ,减少了数据处理量 ,应用处理器芯片ADSP2 10 6 0 。

关键词：雷达工程成像雷达信号预处理正交采样

传染性喉气管炎病毒gB基因和新城疫病毒F基因在重组禽痘病毒中共表达

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生物工程学报 2004年第6期20卷 963-966页

作者：智海东王云峰童光志王玫张绍杰中国农业科学院哈尔滨兽医研究所兽医生物技术国家重点实验室哈尔滨150001

在重组禽痘病毒中表达多个禽类病原的主要免疫原基因是构建多价基因工程疫苗的前提 ,但相关研究很少。在表达传染性喉气管炎病毒 (ILTV)gB基因重组禽痘病毒的转移载体的基础上 ,构建了含有ILTVgB基因和新城疫病毒 (NDV)F基因的重组禽痘... 详细信息

在重组禽痘病毒中表达多个禽类病原的主要免疫原基因是构建多价基因工程疫苗的前提 ,但相关研究很少。在表达传染性喉气管炎病毒 (ILTV)gB基因重组禽痘病毒的转移载体的基础上 ,构建了含有ILTVgB基因和新城疫病毒 (NDV)F基因的重组禽痘病毒转移载体pSY gB F ,采用脂质体转染禽痘病毒感染的鸡胚成纤维 (CEF)细胞后 ,通过蓝斑试验筛选出重组禽痘病毒 (rFPV gB F) ,并进行了 6轮蚀斑纯化。Western blot试验和间接免疫荧光试验证明ILTVgB基因和NDVF基因在rFPV gB F感染的CEF细胞中获得表达。为传染性喉气管炎、新城疫与鸡痘活载体多价疫苗的研制奠定基础。

关键词：传染性喉气管炎病毒糖蛋白B 新城疫病毒融合蛋白重组禽痘病毒

Spike protein region (aa 636～789) of porcine epidemic diarrhea virus is essentIal for induction of neutralizing antibodies

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Spike protein region (aa 636～789) of porcine epidemic diarr...

Observation of Single-slope Quasistatic Wings of Laser Induced Collision Energy Transfer

中国畜牧兽医学会畜牧兽医生物技术学分会暨中国免疫学会兽医免疫分会第七次研讨会

作者： D.B. SUN, L. FENG*, H.Y. SHI, J.F. CHEN, S.W. LIU, H.Y. CHEN, Y.F. WANG (Division of Swine Infectious Diseases, national key laboratory of veterinary Biotechnology, harbin veterinary research institute, chinese academy of Agricultural Sciences, harbin 150001, P.R. china)

To analyze antigenic structure of the spike (S) protein of Porcine epidemic diarrhea virus (PEDV), the gene encoding its major immunodominant region S1 was amplified by PCR. We prepared four truncated S1 proteins spanning the entire S1 domain fused to GST protein. To identify the most important antigenic region of S1, the truncated S1-GST fusion proteins were examined for their ability to react with immune serum against PEDV and to elicit the formation of neutralization antibodies in immunized animals. We found that the region of S1 signed as S1D (aa 63689) was able to react with PEDV antiserum and to elicit formation of neutralization antibodies in mice. Moreover, the immune serum against S1D showed the binding ability to the native S protein of PEDV.

关键词： epitope Porcine epidemic diarrhea virus spike protein virus neutralization

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chinese Journal of Lasers 2001年第1期 52-57页

作者： ZHENG Ruihua CHENG Deying ZAO Xiaoyan LU Zhiwei MA Zuguang (institute of Opto Electronics, national key laboratory of Tunable Laser Technology . harbin institute of Technology, harbin 150001, china) Received March 3, 2000 Revised manuscript rec

Three transitions of laser induced collision energy transfer from Eu (6s6p) 8P 5/2 to Sr (5s10s) 1S 0, Eu (6s6p) 8P 7/2 to Sr (5s9d) 1D 2 and Eu (6s6p) 8P 5/2 t... 详细信息

Three transitions of laser induced collision energy transfer from Eu (6s6p) 8P 5/2 to Sr (5s10s) 1S 0, Eu (6s6p) 8P 7/2 to Sr (5s9d) 1D 2 and Eu (6s6p) 8P 5/2 to Sr (5s9d) 1D 2 have been observed in experiments. The relation between the breadth of spectral lines and the energy structures were analyzed experimentally and theoretically by two dipole dipole interactions.

关键词： LICET dipole dipole interaction four level theory

Thermal stability and high-temperature shape memory characteristics of Ti-20Zr-10Ta alloy

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chinese Physics B 2014年第1期23卷 466-469页

作者：郑晓航隋解和张欣杨哲一蔡伟 national key laboratory Precision Hot Processing of Metals School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 China

The microstructure, martensite transformation behavior, thermal stability and shape memory behavior of Ti–20Zr– 10Ta high temperature shape memory alloy were investigated. The Ti–20Zr–10Ta alloy exhibited a reversible transformation with the high martensite transformation temperature of 500oC and good thermal stability. The alloy displayed the elongation of 15% and a maximum recovery stain of 5.5% with 8% pre-strain.

关键词： Ti–Zr–Ta alloy martensite transformation high temperature shape memory effect thermal stabil-ity