Origin of immature sulfur-rich oil in Jianghan oil field

Chemical structure of immature sulfur-rich kerogen and composition of immature sulfur-rich crude oil in Jianghun oil field have been studied. In molecular level, crude oil differs from thermolysed and chemolysed products of kerogen but does resemble the bitumen in immature sulfur-rich source rock. Therefore, immature sulfur-rich oil may be derived from the expelling of bitumen rather than from thermal cracking of kerogen.     

Carbon isotope anomaly in marbles associated with eclogites from the Dabie Mountains

This is a report of carbon isotope anomaly in marbles associated with the UHP eclogites from the Dabie Mountains. The results place constraints on the degree of crust-mantle interaction during the UHP metamorphism.     

Molecular cloning and nucleotide sequence of classical swine fever virus strain Shimen

According to the previously published CSFV sequences, 18 paris of partially overlapping primers which span the entire genome of CSFV strain Shimen were designed and synthesized. Each cDNA fragment of strain Shimen was amplified by RT-PCR method from the anticoagulant blood of strain Shimen infected pig. The PCR fragments were cloned into pGEM-T vector respectively and sequenced. The results show that we have obtained the nucleotide sequence of strain Shimen. The viral RNA consists of 12 297 nucleotides including noncoding regions of 373 and 227 bases at the 5′ and 3′ end, respectively, and a single large open reading frame spanning 11 697 nucleotides in the middle, which encodes an amino acid sequence of 3 989 residues with a calculated molecular weight of 437.6×10³. The precisely sequencing of 5′ and 3′ termini is undertaking. Supported by the National Pandeng Project Huang Qianhua: born in 1968. Graduate student     

结构化面向对象形式规格说明语言OOZS——设计原理

形式方法与面向对象方法的综合使用可以使它们各自的优点得到充分体现：形式方法使目标软件系统的需求规格说明简明、精确,面向对象方法使目标软件系统的组织和分解工作更加系统、自然．本文讨论了Ｚ规格说明语言的应用限制,并在Ｚ语言的基础上介绍了结构化面向对象形式规格说明语言——ＯＯＺＳ的设计方法．该语言吸收了面向对象程序设计语言ＳｍａｌＴａｌｋ、Ｃ＋＋以及形式规格说明语言ＶＤＭ、Ｚｃ、Ｚ．Ｓ等的优点,引入了类、继承、入口、出口、Ｐｒｅ谓词、Ｐｏｓｔ谓词等机制,并对Ｚ语言的符号进行结构化处理,提高了形式规格说明的层次性和模块化能力,可用于大型面向对象软件系统需求规格说明的编写     

用于瞳孔序列图像分析的实时轮廓检测和参数提取

本文介绍一种医用图像分析系统．该系统连续获取瞳孔图像,根据对图像序列的某些先验知识自动确定门限．在此基础上进行快速边缘检测,并自动修补缺损的目标轮廓．在判定所得轮廓有效后计算目标面积．若数据无效则自动重新采样．序列图像观测结束后对间隔不均匀的数据进行内插校正．系统所提供的分析结果可用于临床和医学研究     

炸药破碎岩石能量利用率的研究

以爆炸动力学理论和岩石断裂理论为基础,分析了岩石破中的能量平衡问题,并给出了炸药破碎岩石能量利用率的计算方法。理论分析表明,平均爆破块度随岩石的单位表面能的增加而增加;计算结果表明,炸药破碎岩石能量利用率仅占炸药总能量的百分之十左右。     

1,3—二氯—2—丙醇氧化反应的研究

对１,３－二氯－２－丙醇的氧化反应进行了系统的研究,将８４％的硫酸溶液慢慢滴加到包含有１,３－二氯－２丙醇和重铬酸钠水溶液的反应容器中去,将体系保持在２４℃～２６℃拦反应６ｈ,反应完成后,过滤回收１,３－二氯丙酮粗品,粗品用冰水洗涤,然后通过蒸馏经可获得８０．４％的收率的１,３－二氯丙酮,这是一种合成１,３－二氯丙酮较好的工艺,这种工艺与同类文献介绍的方法比较目标产物收率提高１０％,而反应时间缩短     

云南楚雄市鸟类多样性的研究

对楚雄市鸟类栖息环境：即城市市区,城市绿化区,工矿区,农田耕作区,自然保护区的调查,共记录鸟类７２种,隶属于１３目２６科,总计１１４２只个体,并运用物种多样性测定法（Ｓｈａｎｎｏｎｗｅａｖｅｒ指数和Ｓｉｍｐｓｎ指数）评价各环境中鸟类多样性,讨论了有关鸟类物种多样性与栖息环境的关系及其与人类活动干扰程度的关系．     

盐酸米诺环素胶囊溶出度测定方法的改进

关于盐酸米诺环素胶囊溶出度测定方法和标准修订．采用紫外法,以水为溶剂,检测波长为（３４６±２）ｎｍ,在５～３０μｇ／ｍＬ浓度范围内有良好线性关系（ｒ＝０．９９９９）．平均回收率为（１００．６±０．５８）％,测定浓度为１５μｇ／ｍＬ．在此条件下可得准确的结果．     

Rh—Ag／SiO2催化剂上CO的吸附与加氢反应

应用表面反应红外动态技术考察了促进型铑催化剂Ｒｈ－Ａｇ／ＳｉＯ２上ＣＯ吸附及其加氢反应的性能,结果表明：线式吸附态的ＣＯ对氢的反应性能高于桥式吸附的ＣＯ,是加氢反应的主要活性吸附态．反应条件下温度升高有利于Ｒｈ－Ａｇ／ＳｉＯ２上线／桥ＣＯ吸附态强度比值的增加．表面反应生成了表面甲酰基、甲酸盐、乙酰基、乙酸盐、乙烯酮及烯醇盐等关键的Ｃ１－２含氧中间体．助剂Ａｇ的加入提高了铑催化剂上ＣＯ吸附态的线／桥强度比值以及线式吸附ＣＯ的加氢反应速率和Ｃ２含氧物的生成率．