荫风轮总黄酮对心血管系统的作用

荫风轮总黄酮(CPF)对麻醉正常家兔有一过性降压作用。用CPF灌流离体蟾蜍心脏,可降低心脏收缩力、减慢心率。CPF尚能阻止垂体后叶素引起的家兔心电图ST-T的变化,提高注射肾上腺素及去甲肾上腺素小鼠耐缺氧的能力。     

惰性气体原子与H2(D2、T2)分子碰撞总截面的理论研究

用Tang-Toennies势模型和密耦近似方法计算了能量E=0．05、0．10、0．15、0．20eV和0．25eV时惰性气体原子与H2(D2、T2)分子碰撞体系的碰撞总截面，得到了惰性气体原子与H2及其对称同位素替代碰撞体系总截面随能量增加的变化规律。     

关于Be‘zier—Sikkema算子的逼近

应用中心极限定理讨论Be’zier-Sikkema算子列,对有界变差函数的点态逼近,给出精确的逼近阶。     

低盐固态酱油生产中多菌种发酵方法的应用

本文针对我国现行低盐固态酱油生产工艺的缺点,通过双菌分开制曲、多菌混合发酵,使酱油质量得以提高.全氮利用率和氨基酸生成率分别为78.7%、0.538.     

应用灰色模型预测邮电业务总量

本文介绍了灰色系统理论中GM(1,1)模型的建模方法,并用该方法建立了江苏省1988年和1989年邮电业务中函件总量、邮包总量、汇票总量、长途电话总量的预测模型。1988年的预测精度均在95.70％～97.99％之间。     

Study on the Environmental Quality Guarantee Ratio on the Basis of Total Air Pollutant Emission Amount Control

The hourly and daily air quality concentration in the total air pollutant emission amount control zone is not sure to be continuously up to national ambient air quality standard, even though the total annual air pollutant emission is permitted under the total air pollutant emission amount control (TAPEAC) on the basis of A-value method. So the concept of the environmental quality guarantee ratio (EQGR) for TAPEAC is advanced in this paper and its quantitative formula is figured out for both hourly and daily EQGR. It is concluded that the EQGR is related with the yearly arrangement of A-value besides the pollutant type. According to the meteorological data in a lower area along Yangtze River in 2000, the yearly A-value trend is analyzed. Based on the data, the hourly EQGR of SO2 and NO2 is respectively 97.4% and 90.2%, and daily EQGR respectively 90.2% and 79.5%.     

球面闭曲线全挠率定理的证明及推广

本文给出了关于全挠率的一个著名定理:“球面闭曲线的全挠率为零”一个新的简单证法,并且给出了这个定理的两个推广定理.     

How accurate are the U.S. Bureau of the Census projections of total live births

"The accuracy of total live birth forecasts issued by the U.S. Bureau of the Census was analysed. Forecast accuracy has not improved significantly since 1950. Further, the forecasts are not more accurate than several naive alternatives. Moving from a period methodology to a cohort methodology improved forecast accuracy for certain forecasts. [It is demonstrated that] the Bureau of the Census systematically underestimated total births in the upswing and overestimated in the downswing."     

超声波提取萹蓄总黄酮及测定

目的：从萹蓄中提取总黄酮并测定其含量。方法：选择乙醇为溶剂，用超声波技术从萹蓄中提取黄酮类物质，并对所提取的黄酮类物质进行验证，用分光光度法测定含量。结果：测得样品中总黄酮的平均含量为1.88％，平均回收率为100．95％．结论：运用超声波法从萹蓄中可以提取出黄酮类物质，加快提取速度，提高提取效室．     

全概率公式,Bayes公式的推广与矩阵表示

该文对全概率公式和Bayes公式及其矩阵表示加以推广,证明并给出推广的全概率公式和Bayes公式及其对应的矩阵表示。