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干涉成我谱技术研究新进展
,相里斌
红外 , 2000,
Abstract: 综述了九十年代出现的空间调制干涉成像光谱技术的原理、特点、具有代表性的方案以及上前国内外的发展现状和最新研究动态。由于空间调制干涉成像光谱技术具有大视场、高通量、多波段、小型化的优点,其应用前景非常广泛。它将可能成为未来光谱技术的研究发展方向。
磁记忆检测方法及其应用研究
,董韶平,杨煜,,池琳,陈晓梅
北京理工大学学报 , 2003,
Abstract: 研究金属磁记忆检测新方法在应力腐蚀问题中的应用.以低碳管线钢试件为研究对象,使之拉伸或折弯以产生残余变形和应力,利用磁记忆检测仪对这些拉伸和折弯后的试件进行检测,根据给出的评价标准对试件表面的应力变形状态进行评价分析,为应力腐蚀实验中研究应力和腐蚀之间的关系提供了依据.
甲苯甲醇侧链烷基化反应中甲酸盐的形成及其作用
林丹,赵会,小月,蓝冬雪,
催化学报 , 2012, DOI: 10.3724/SP.J.1088.2012.11243
Abstract: ?将碱金属碳酸盐修饰的KX和NaY沸石用于催化甲苯甲醇侧链烷基化反应,并结合甲醇吸附的红外光谱以及异丙醇和甲醇催化分解反应结果,剖析了甲酸盐的形成及其作用.结果表明,碱金属碳酸盐的负载能提高碱金属离子交换八面沸石的催化活性.在反应过程中催化剂表面形成了不同数量的甲酸盐,尤其是K2CO3修饰的KX上;甲酸盐主要来源于碳酸盐与甲醇分解产物甲醛的反应,它的形成对催化剂甲苯甲醇侧链烷基化活性的影响较大,类似于碱金属硼酸盐的修饰,改善了催化剂的表面酸碱性,形成了更为有效的活性中心.
饲料、水温、投饲率对中国对虾摄食与生长的影响
乔振国,沈晓,
海洋科学 , 1992,
Abstract: 本文探讨了实验条件下饲料、水温、投饲率等因子对中国对虾摄食与生长的影响。初步结果:(1)在23~30°C温度范围内,对虾对人工配合饲料和鲜活饵料的日摄饵量随水温上升而增加;(2)对虾对人工配合饲料和鲜活饵料的日摄饵率随体长增长而下降,配合饲料的日摄饵率在体长8cm处有一个明显的突降,对鲜活饵料的日摄饵率的突降点则出现在对虾体长l0cm处;(3)降低投饲率可使饲料效率明显提高,生长率则相应下降,但当投饲率降到50%时,饲料效率不再提高,生长率明显降低。
The optical transmission and improvement of flux for the static polarization wind imaging interferometer
静态偏振风成像干涉仪光传输特性和光通量改善

Zhang Xuan-Ni,Zhang Chun-Min,
宣妮
,

物理学报 , 2012,
Abstract: The static polarization wind imaging interferometer takes advantage of polarized-light beam to obtain interferogram, and beam transmission characteristic in core polarization components is a key issue. The Jones matrix is convenient and concise for analyzing the optics polarization state, and easy to obtain the relationship of key optical components in the system performance. The Jones matrix is introduced to describe the static polarization interferometer system respectively in a given case and in a general case. The variations of optical flux and interference fringe visibility are investigated as functions of polarization direction and wave plate azimuth associated with the key components, and their optimal values are ascertained. The optical flux can be improved by widening field of view and increasing the transmittance of the pyramid prism. The simulation results of the interference intensities confirm the theoretical expectations.The study provides a theoretical basis and practical guidance for the design, development and engineer of the static polarization wind imaging interferometer.
Theoretical study of polarization atmosphere Michelsoninterferometer using multi-wavelength
偏振风成像干涉仪多波长探测理论研究

Zhu Hua-Chun,Zhang Chun-Min,
朱化春
,

物理学报 , 2011,
Abstract: The basic principle of measuring the upper atmosphere using the polarization atmosphere Michelson interferometer (PAMI) is briefly described. The relationships between the intensity and the visibility of the PAMI and the Delayed phase of the wave plate are presented. The visibility and the intensity of the PAMI are dependent on the wavelength of spectral line, showing that the 732nm line is inapplicable for measuring spectral line if the PAMI is designed specifically for the 630 nm line. The research provides a theoretical basis and practical guidance both for the theoretical study of polarization atmosphere Michelson interferometer and for the design and development of the new polarization atmosphere Michelson interferometer.
Teleportation of on N-particle GHZ state via one three-particle W state
利用一个三粒子W态隐形传送N粒子GHZ态

Zha Xin-Wei,Zhang Chun-Min,
查新未
,

物理学报 , 2008,
Abstract: Recently Yang Hon-qin et al proposed a scheme for teleporting a three-particle GHZ state from a sender to either of two receivers with two three-particle W state quantum channel. In this paper, the theoretical analysis is given and the new scheme for teleporting an N- particle GHZ state using only one three-particle W state quantum channel is proposed.
Influence of the polarization direction on the modulation depth and interferential intensity of a new polarizing atmospheric Michelson interferometer
新型偏振风成像干涉仪中偏振化方向对调制度和干涉强度的影响研究

Zhang Chun-Min,Zhu Lan-Yan,
,朱兰艳

物理学报 , 2010,
Abstract: The principle of the polarizing atmospheric Michelson interferometer is introduced, the influence of the polarization directions of all the components on its interferential intensity and modulation depth is discussed, and the dependence of intensity and modulation depth on the deviation is calculated with the polarization direction deviating from the ideal direction. We analyze the influence on the intensity and modulation depth when the polarization directions of the polarizer, the three quarter-wave plates and the analyzer deviate from the ideal direction. The changing curves of modulation depth, wind velocity and the temperature with the deviation of the polarization direction are obtained. We also give the tolerances of all the polarization directions. These results would be helpfull for theoretical research and development of the new polarizing atmospheric Michelson interferometer. It also has scientific value and wide prospect for measuring winds in the thermosphere and for space measurement.
内蒙古集宁新生代玄武岩中橄榄岩包体矿物化学特征及其地幔演化意义
周媛婷,郑建平,,陈曦,
矿物岩石 , 2010,
Abstract: 在无水“干"体系的四矿物相橄榄岩中,单斜辉石由于熔点低而通常记录着丰富的部分熔融作用和地幔交代作用信息。在详细岩相学特征和组成矿物主元素分析基础上,重点对内蒙古集宁玄武岩中橄榄岩包体的单斜辉石进行了激光原位微量元素研究。通过与新生代时华北具古老克拉通地幔特征(如鹤壁)和具新生岩石圈地幔特征(如山旺)的橄榄岩对比,讨论了新生代时集宁地区陆下岩石圈地幔性质及其形成和演化机制。集宁地区岩石圈地幔是相当于原始地幔经过较低程度的部分熔融抽取形成的,除个别样品的部分熔融程度<5%外,多数样品为5%~10%。橄榄岩的平衡温度与橄榄石Mg#关系表明新生代时集宁地区的陆下岩石圈地幔是不均一的,无明显分层现象,表现为饱满与过渡型地幔的共存。这种主体饱满并兼有过渡型地幔的不均一现象,可能是软流圈物质对古老地幔进行不均匀侵蚀、改造和置换作用的结果。
7.13w全固态1319nm宏微脉冲激光器
鲁燕华,,刘东,马毅,,王卫
强激光与粒子束 , 2009,
Abstract: ?研制了一台高效率全固态平均功率7.13w的1319nm宏微脉冲激光器。激光器采用热稳z形折叠腔,增益模块采用自行研制的准连续15个二极管芯片环形泵浦的nd:yag模块,采用主动声光锁模器作为锁模元件,并在腔内插入倍频ktp晶体对激光器的输出尖峰进行抑制。为了获得稳定的锁模状态,对激光器腔长进行了精确设计和调节。当激光器腔长与锁模器驱动频率匹配时,获取了宏脉冲重复频率400hz、脉宽约190μs,微脉冲重复频率95.6mhz、脉宽小于1.0ns的1319nm激光脉冲。
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