铷D2线高分辩光电流谱研究

应用空心阴极放电管观测铷Ｄ２线的光电流谱，发现谱线中部有凹陷出现。对凹陷出现的原因进行了分析和研究。利用此现象，将半导体激光器频率锁定于谱线凹陷的中央。     

一个能描述多种谱线轮廓的新函数

本文提出一个能统一描述多种谱线轮廓的新函数。它能准确地包括洛伦兹线型函数和双曲正割函数,并可逼近高斯型函数和佛克脱线型函数。此外,它还能描述有兰姆凹陷的谱线及非对称的单峰、双峰谱线。     

量子干涉效应对钠原子光谱线型的影响

利用连续激光激发钠原子，在钠原子D1谱线的激发谱中发现了两个凹, 研究了相干驱动场激励下的三级级系统激发谱并进行计算和分析，给出了激发谱的变化规律，得到了与实验一致的结果，实验与理论分析表明，激发谱中的凹陷与量子干涉效应密切相关。     

彰武地区中生代张强凹陷地热史研究

对张强凹陷粘土矿物Ｘ射线衍射谱线特征及有机质干酪根类型的定性分析和镜质体反射率（Ｒ０）与温度之间关系的定量模拟计算，恢复了凹陷的地热史；通过古热流的计算，恢复了凹陷的热沉降史，从定量的角度进一步证实了凹陷古热流在时间上表现为由低→高→低的变化规律，从而证实了凹陷属于裂谷盆地．通过研究，指出对凹陷进行进一步勘探开发有利的生油层位．     

乙醇掺氮放电大气压等离子体射流的光谱特征研究

对乙醇放电的大气压等离子体射流进行了研究.用发射光谱(OES)法观察了等离子体光谱中的C,CN,CH和C_2基团.在Ar与乙醇混合物等离子体的光谱中,分别在473.7,516.4和563.5nm处出现了3个明显的C_2分子谱线;在388.3nm出现了CN自由基分子谱线.掺入氮气后在422nm处出现了新的CN谱线,C_2谱线则只出现在516.4nm处,473.7和563.5nm处的C_2谱线明显消失.当乙醇含量不变时,随着氮气流量的增加,可以显著地提高CN基团的谱线强度,同时有效地抑制C_2基团的谱线强度.     

金属碳纳米管多原子掺杂硼氮的输运特性

文章建立了(6,6)碳纳米管模型,并对其掺杂B/N对、B/N3(3个N围绕着1个B)、N/B3(3个B围绕着1个N)3种不同原子团,采用非平衡格林函数法计算了该模型在不同掺杂情况下的透射率谱线及体系总能。发现在多原子掺杂的情况下,电子的透射谱和杂质中的硼氮含量有关,若硼含量较多,则透射谱与单独掺杂硼原子的类似,在费米能级以下有一个透射谷,相应的电子透射率几乎抑制为0;若氮含量较多,在费米能级上方有透射谷,情形与前者相类似。特别地,在对位掺杂B/N3和N/B3时,透射谱线在费米能级两侧一定范围内出现较宽规整的凹陷,在凹陷处的透射率几乎为0。     

激光诱导铅等离子体的自吸收时空分辨特性研究

利用一价铅离子谱线和原子谱线,在延迟时间0-360 ns内对铅等离子体自吸收的时空特性进行了研究.通过改变靶材距离及观察不同的延迟时间,发现铅等离子体不同的特征谱线的自吸收行为存在很大不同.从实验图像中可明显的看出,等离子体形成初期,铅离子和铅原子表现出不同的线型的变化.铅离子（220.26nm）出现了红移,而铅原子（280.20 nm）出现了蓝移.靶材距离焦点位置不同时,不同的特征谱线,不仅自吸收持续时间不同,而且自蚀最强点出现的时间点也不一样.所以在利用某特征谱线进行定量分析时,若选择合适的延迟时间和靶材位置,可有效地减小或削弱自吸收的影响.笔者还对铅等离子体不同特征谱线自吸收行为进行了解释.     

DMPO与O^—2的自旋加合物的ESR谱分析

寿命较短的Ｏ＾－２不能用ＥＳＲ直接检测到，可以ＤＭＰＯ先将其捕获形成自旋加合物后进行ＥＳＲ分析，这种自旋加合的的ＥＳＲ谱线较为复杂，且有变化，本文对ＤＭＰＯ－ＯＯＨ谱线的变化进行了分析，且对谱线变化中出现的ＤＭＰＯ－ＯＨ谱线的来源进行了深入探讨，对与文献报道相左的现象，据实验结果本文提出了新的观点。     

氢原子光谱杂质谱线的分析

系统地分析了氢原子光谱中出现的杂质谱线,给出了此类现象的处理方法。     

Xe^＋离子注入聚合物Q膜的拉曼光谱研究

分析了Xe~+离子注入聚合物Q膜的拉曼光谱,对原始Q膜的拉曼谱线进行了指定.实验结果表明,随离子注入量的增加,其分子结构的特征谱线逐渐消失,当注入剂量达1×10~(17)Xe~+/cm~2时,注入层中原始膜的全部谱线消失,只在～1550cm~(-1)处出现宽的拉曼峰,说明注入层的分子结构遭到破坏,出现类似非晶碳的结构,注入层的电导率增加与其结构变化密切相关.     

采动影响下逆断层特征参数对断层活化的作用规律

笔者分析了采动影响下断层滑移的主要影响因素,以数值模拟为研究手段,利用FLAC3D建立了逆断层简化模型,分析了不同断层倾角、不同落差及采掘工作面与断层不同距离的断层带附近煤岩体弹性能、断层面正应力与剪应力、断层滑移量的变化规律,从而揭示了采动影响下逆断层特征参数对断层活化的基本作用规律。研究结果表明:上盘或下盘开采,断层带附近煤岩体弹性能集中程度随工作面与断层距离的增大而降低,随断层倾角及落差的增加而增大,但下盘开采对断层带的能量集中程度较上盘高。下盘开采时剪应力较上盘显著增加,但正应力变化较小,易于断层活化。上盘或下盘开采,随工作面与断层距离的增加,断层滑移量减小。上盘开采,随断层倾角增大,断层滑移量增加;随断层落差增大,断层滑移量减小。下盘开采,随断层倾角增大,断层滑移量减小;随断层落差的增大,断层滑移量增加。     

1MB EPROM特殊读写方式的逻辑设计

本文给出了一个有特殊读写方式的１ＭＢ ＥＰＰＯＭ的结构和关键部分的逻辑设计，采用一脚多用及混用技法，尤其是利用三个输出端兼作高位地址输入端，并加入适当时序设计，能有效地实现１ＭＢ ＥＰＲＯＭ的自加密，按标准封装管脚给出的地址端进行正常读写，只能读写２５６ＫＢ容量。     

基于不平衡跌落的低电压穿越控制策略

目的解决大功率三相光伏并网逆变器在不平衡跌落时网侧电流所产生的畸变及不平衡,保证在电网不平衡下电压的正、负序分量提取的准确性和实时性。方法采用前馈解耦的空间矢量的双闭环控制算法抑制负序电流的控制策略搭建仿真模型。结果提出了基于正、负序d-q坐标系下的二次陷波器滤波法正确提取电网电压的方法。结论实验结果证明,该方法能有效地对正、负序进行分解以及抑制电网不平衡跌落导致的系统的不稳定运行。     

网络环境下商业秘密的保护

商业秘密的法律保护是现阶段法学界讨论的热点问题，但网上商业秘密的保护却鲜有涉及。探讨网络环境下商业秘密呈现的新特点，并在此基础上提出探索性的对数字化商业秘密的保护建议。     

Long-term memory was impaired in one-trial passive avoidance task of day-old chicks hatching from hypomagnetic field space

The retained curve in one-trial passive avoidance task (OTPAT) of day-old chicks hatching from natural geomagnetic field (control groups) is consistent with the acknowiedged three-phase model. The two dips are at the 20th min and the 60 rain, and the avoidance rates (AR) to the red bead in short- and intermediate-term memory are 68.4% on average, while that in the long-term momory was 74.8%. The OTPAT retained curve of day-old chicks hatching from hypomagnetic field space (experimental groups) presents the marked timing effect. The two dips were at the 25th min and the 50th min, the avoidance rates to the red bead (ARt) in the short- and intermediate-term memory was 74.1% on an average, which was resembled to that in control group;however, the long-term memory appeared an obvious fluctuation. Compared with that in control groups, ARt and the deviation coefficient in experimental groups were decreased by 25.3% and increased by 1.3 times, respectively. That is to say, both the memory ability and stability in the experimental chicks declined. The result shows that the hypomagnetic field space has a negative effect on the development of chick brain function, and that cannot be negligible.     

Observational evidence for the accretion-disk origin for a radio jet in an active galaxy

Accretion of gas onto black holes is thought to power the relativistic jets of material ejected from active galactic nuclei (AGN) and the 'microquasars' located in our Galaxy. In microquasars, superluminal radio-emitting features appear and propagate along the jet shortly after sudden decreases in the X-ray fluxes. This establishes a direct observational link between the black hole and the jet: the X-ray dip is probably caused by the disappearance of a section of the inner accretion disk as it falls past the event horizon, while the remainder of the disk section is ejected into the jet, creating the appearance of a superluminal bright spot. No such connection has hitherto been established for AGN, because of insufficient multi-frequency data. Here we report the results of three years of monitoring the X-ray and radio emission of the galaxy 3C120. As has been observed for microquasars, we find that dips in the X-ray emission are followed by ejections of bright superluminal knots in the radio jet. The mean time between X-ray dips appears to scale roughly with the mass of the black hole, although there are at present only a few data points.     

从文化角度谈翻译中的语用因素

从语用与翻译和文化的关系出发,探讨了翻译中的语用因素。从语用的角度提出了翻译的原则和方法。     

论彭灌飞来峰群形成方式和时代及根带等问题

彭灌飞来峰群为龙门山飞来峰群之一部，外来系统地层包括Ｄ、Ｃ、Ｐ、Ｔ１，岩性主要为碳酸盐岩，原地系统有Ｔ３、Ｊ，岩性主要为含煤碎屑岩、泥岩。原地系统大构造简单，小构造复杂，外来系统各种构造极发育，结构面倾向北西，辗掩滑动面倾向南东，前人认为飞来峰群是印支运动或印支、喜马拉雅两期地壳运动水平挤压、推覆产物，根带来自龙门山以西。笔者据沉积岩碎屑粒经、成分，并结合前人资料，研究古地形、古气候和古水系，认为飞来峰群是新第三纪龙门山东坡上岩块发生蠕动的产物，根带来自龙门山顶盖。     

Structure instability forecasting and analysis of giant rock pillars in steeply dipping thick coal seams

Structure stability analysis of rock masses is essential for forecasting catastrophic structure failure in coal seam mining. Steeply dipping thick coal seams (SDTCS) are common in the Urumqi coalfield, and some dynamical hazards such as roof collapse and min-ing-induced seismicity occur frequently in the coal mines. The cause of these events is mainly structure instability in giant rock pillars sand-wiched between SDTCS. Developing methods to predict these events is important for safe mining in such a complex environment. This study focuses on understanding the structural mechanics model of a giant rock pillar and presents a viewpoint of the stability of a trend sphenoid fractured beam (TSFB). Some stability index parameters such as failure surface dips were measured, and most dips were observed to be between 46° and 51°. We used a digital panoramic borehole monitoring system to measure the TSFB’s height (ΔH), which varied from 56.37 to 60.50 m. Next, FLAC3D was used to model the distribution and evolution of vertical displacement in the giant rock pillars;the re-sults confirmed the existence of a TSFB structure. Finally, we investigated the acoustic emission (AE) energy accumulation rate and ob-served that the rate commonly ranged from 20 to 40 kJ/min. The AE energy accumulation rate could be used to anticipate impeding seismic events related to structure failure. The results presented provide a useful approach for forecasting catastrophic events related to structure in-stability and for developing hazard prevention technology for mining in SDTCS.