中药路路通化学成分的研究（Ⅰ）——一种新的五环三萜的结构测定

从生药路路通分离得到２个齐墩果烷骨架的五环三萜类化合物．通过１３ＣＮＭＲ，ＤＥＰＴ，１ＨＮＭＲ，２Ｄ１Ｈ－１３ＣＣＯＳＹ，２Ｄ１Ｈ－１ＨＣＯＳＹ，ＩＲ，ＭＳ和元素分析阐明了它们的结构．（１）为２α，３β－二羟基－２３－去甲－齐墩果－４（２４），１２（１３）－二烯－２８－羧酸，（２）为２α，３β，２３－三羟基齐墩果－１２（１３）－烯－２８－羧酸，（１）未见文献报道，（２）是首次从这一植物中分离得到     

连续铸钢用中间包衬里损伤的红外检测分析

利用一维稳态传热模型,计算中间包底面温度,建立了底面温度与中间包衬里损伤程度间的对应关系,发现中间包底面温度随着衬里损伤程度增加而增加.红外热像检测表明:中间包底面温度随着包龄的增加而增加;红外热像技术可以有效地对中间包衬里损伤进行检测;利用所建立的理论关系式,可以实现对中间包红外热像的定量分析.     

图像目标的可视识别与智能跟踪

本文研究图像目标的可视识别与跟踪,给出了图像目标识别印章模型和系统总体设计方案。在此基础上,采用智能跟踪算法,实现了正常跟踪、判断、预测和记忆跟踪的功能,而且跟踪方式随着环境条件的变化而变化。正常跟踪算法的图像代数描述是简明的,与算法是内在一致的。通过给出两个实时可视跟踪的实例说明在实时ＤＳＰ可视跟踪系统上算法的性能及其可行性。     

Long-term Energy Demand and CO_2 Problem in the PRC

The long-term energy demand in China and the-Chinese share in global CO2 emission are forecasted on the basis of scenarios of population growth and economy development up to 2050 proposed in view of the interaction of energy, economy, environment and social development. The total energy demand in 2050 will reach 4.4~ 5.4 billion tce. It is shown in energy supply analysis that coal is China's major energy in primary energy supply. The share of CO2 emission in the future Chinese energy system will be out of proportion to its energy consumption share because of the high persentage of coal to be consumed. It will reach about 27%. The nuclear option which would replace 30.7% of coal in the total primary energy supply will reduce the share by 9.8%. So the policy considerations on the future Chinese energy system is of great importance to the global CO2 issues.     

ANALYSIS AND COMPUTATIONAL ALGORITHM FOR QUEUES WITH STATE-DEPENDENT VACATIONS Ⅱ:M(n)/G/1/K

We study a single-server queueing system with state-dependent arrivals and general service-distribution.or simply M(n)/G/1/K.where the server follows an N policy and takes multiple vacationswhen the system is empty.We provide a recursive algorithm using the supplementary variable tech-nique to munerically compute the stationary queue length distribution of the system.The only inputrequirements are the Laplace-Stieltjes transforms of the service time distribution and the vacation timedistribution.and the state-dependent arrival rate.The computational complexity of the algorithm isO(K~3).     

基于模拟退火算法的VaR-GARCH模型

针对GARCH模型中的参数估计问题，提出了一种基于模拟退火算法（simulated annealing algorithm)的估计方法，并将其应用于VaR估计中，道琼斯指数和汇率的算例表明，基于模拟退火的VaR-GARCH模型在计算鲁棒性和估算精度方面优于传统的数值方法。     

A New Method with High Confidence for Validation of Computer Simulation Models of Flight Systems

Computer simulation models may by used to gain further information about missile performance variability. Model validation is an important aspect of the test program for a missile system. Validation provides a basis for confidence in the model's results and is a necessary step if the model is to be used to draw inference about the behavior of the real missile. This paper is a review of methods useful for validation of computer simulation models of missile systems and provides a new method with high degree of confidence for validation of computer simulation models of missile systems. Some examples of the use of the new method in validating computer simulation models are given.     

歧口凹陷沙一下亚段白云岩储集空间特征研究

 歧口凹陷沙一下亚段白云岩分布广泛,白云岩可以发育物性良好的储层。根据钻井岩心、地球化学特征、扫描电镜、电子探针及物性资料,确定了该套地层白云岩储层的主要岩石类型及储集空间类型：岩石类型可分为微晶白云岩、泥晶白云岩、砂质云岩、灰质云岩和云质灰岩;储集空间有晶间孔、粒间孔、溶蚀孔、构造缝、溶蚀缝等,主要以次生孔隙和裂缝为主。微晶白云岩储集物性较好,主要为晶间孔、粒间孔及裂缝,为较好的储层。分析了目的层白云岩储层的主要成岩作用及期次,主要有胶结作用、压实、压溶作用、白云岩化作用、溶蚀作用等。明确了改善及破坏白云岩储集性能的成岩作用类型,其中对储集性产生积极影响的有溶蚀作用、白云岩化作用,消极影响的有压实、压溶作用、胶结作用。建立了歧口凹陷沙一下亚段白云岩化作用影响储层物性模式,稀土元素Eu异常特征揭示了本区白云岩化作用的两种成因环境：准同生期的回流渗透白云岩化作用和成岩期的埋藏白云岩化作用,通常准同生期的回流渗透白云岩经过深部热液流体的改造,发生埋藏白云岩化作用,多见于裂缝发育区,后者较前者对白云岩储层的改善作用更为明显。     

内伶仃岛猕猴种群动态的研究

对内伶仃岛猕猴种群动态的研究表明,该岛１９８４年有７～８群猕猴,约２００只,１９９７年增加到１９群,约６００只．研究了猕猴种群的来源、数量动态、种群增长率,并对今后１０年猕猴种群数量变化进行了预测．提出了保护和研究该岛猕猴种群的建议     

探空火箭图像系统设计方案

作为一种理想的实验平台,探空火箭在微重力科学领域得到了广泛应用.利用探空火箭进行微重力实验,首要问题是如何将实验过程以图像形式记录下来,并实时传回地面台站.因此,箭上图像的实时采集、编码与传输对实验具有重要作用.根据探空火箭微重力实验图像的特点,提出了一种适合于探空火箭图像系统的设计方案.按照该方案,图像系统可根据微重力实验的科学需求.实时调节实验图像的分辨率、帧速率和压缩比.该系统中,箭上的小波压缩单是核心模块,它通过基于硬件级的小波自适应压缩算法实现图像的箭上实时压缩,解码和实时显示则由与之对应的地面小波解码单元完成.