莫北油田油藏地球化学研究

运用包裹体的均一温度和油气组分并结合原油的地化参数研究了莫北油田气藏的成藏时间、期次、油气源、油气运移和注入方向     

我国生物制药类上市公司的多维主成分分析

主要利用多维主成分分析的方法，对我国上市的生物制药类公司进行多方位的分析和研判，得出综合实力的排名。     

Forecasting European GNP data through common factor models and other procedures

In this paper we present an extensive study of annual GNP data for five European countries. We look for intercountry dependence and analyse how the different economies interact, using several univariate ARIMA and unobserved components models and a multivariate model for the GNP incorporating all the common information among the variables. We use a dynamic factor model to take account of the common dynamic structure of the variables. This common dynamic structure can be non‐stationary (i.e. common trends) or stationary (i.e. common cycles). Comparisons of the models are made in terms of the root mean square error (RMSE) for one‐step‐ahead forecasts. For this particular group of European countries, the factor model outperforms the remaining ones. Copyright © 2002 John Wiley & Sons, Ltd.     

访问Web数据库的一种新方法

描述了ASP的工作原理及ASP的内置对象和组件 ,着重讨论了ASP的数据库组件ADO组件。并介绍了Office 2 0 0 0发布的WebComponents组件和其中的OfficeSpreadsheet,Of ficeChart组件。在此基础上给出了用ASP和MicrosoftOfficeWebComponents相结合访问Web数据库的应用实例。     

Importance measure based optimal maintenance policy for deteriorating components

An optimal maintenance policy tor deteriorating components based on quasi renew-process model is presented. In this policy, the first N - 1 failures of a component are maintained by repairs and the N＇h failure is maintained by replacement. The policy takes replacement actions at component lev- el by considering the fact that more and more components are designed to be field replaceable and maintenance activities are setting free from system halt. Concerning system structure impact, impor- tance measure is employed in the optimization procedure which aims at maximizing the long-rnn prof- it per unit time. Two example series parallel systems are taken to illustrate the policy and it is proved to work well. According to importance analysis, components are classified into important ones and unimportant ones based on the system behavior under their failures. Simulation results show that the presented policy makes a clear distinction between them and takes effective mainte- nance actions to compensate the deteriorating of components.     

拉萨河尖裸鲤（Oxygymnocypris stewartii）肌肉营养组成与分析评价

采用常规生化检测方法测定了拉萨河尖裸鲤（Oxygymnocypris stewartii）肌肉主要营养成分,并首次对肌肉中的23种脂肪酸进行检测。结果显示：拉萨河尖裸鲤肌肉（干样）中蛋白质含量为74.40%,4种微量营养元素钙（Ca）1.85%、镁（Mg）1.48%、钾（K）1.68%、磷（P）0.68%;肌肉中含有17种氨基酸,其中7种人体必需氨基酸总量为25.96%,4种鲜味氨基酸的总量为23.39%;肌肉中含量较高的23种脂肪酸中,n-3型（EPA）与n-6型（DHA）含量分别为39.27%和5.38%,比其他淡水经济鱼类含量高。研究表明拉萨河尖裸鲤具有较高的食用价值和开发前景。     

关于二元合金相图实验教材中若干问题的商榷

详细地研究了二元合金相图实验教材,提出了教材中的若干值得商榷的问题。这些问题是：步冷曲线的形态,凝固点、低共熔点等特征温度测定值,温度校正方法等。也对上述诸问题提出了相应的解决方法。     

凝析油含量的确定及应注意的问题

凝析油含量是凝析气藏评价中非常重要的参数之一.当前主要有两种方法确定凝析油含量:利用生产数据、利用全组分分析数据.前种方法需要参数少、易获得且与生产实际比较符合,但计算的凝析油含量受分离器条件影响大;后种方法计算精度高但需要数据多且与生产实际有偏差.对两种方法进行了敏感因素分析,提出了实际应用中各方法应注意的问题.根据新项目评价时间短、资料有限的情况,给出了估算凝析油含量的思路,为凝析油含量的确定提供依据.     

药用植物广金钱草的研究进展

广西和广东常用大宗中药材广金钱草(Desmodium styracifolium (Osbeck) Merr.)是<中华人民共和国药典>收录品种,生产上以人工栽培为主,主要含有黄酮、生物碱、酚类、鞣质、多糖等化学成分,具有抗泌尿系统结石、改善心血管系统、抗炎和利胆等功效.广金钱草市场需求量大,建议生产上结合经济作物栽培,采取间种或套种的方式,扩大人工栽培规模,在药物研发上,深入研究和开发新的有效化学成分和新的制剂.     

二维塑性变形中应变分布测量的新方法

为了解决复杂构件体积成形过程中金属变形流线和塑性应变分布难于定量测量的问题,本文提出了一种用套环螺纹的测量方法.该方法不用替代材料即可实现对体积成形过程的三维塑性变形的测定,进行定量分析.利用该方法对轮毂件成形过程中四条流线及其轴向应变进行了测量分析,并将实验结果与数值模拟进行了对比.用套环螺纹法获得的应变分布与有限元模拟的应变分布吻合.说明该方法是测量体积成形过程中塑性应变分布较为有效的实验方法.