和指数

The circular also clarified the collateral and the discount rate: security for the Shanghai 180 stock index, the conversion rate of no more than 70%; other A shares and B shares, Conversion rate of no more than 65%; ST shares and warrants of the conversion rate of 0%; ETF's discount rate does not exceed 90%; the national debt conversion rate of not more than 95%; other bonds (non-government bonds) and other listed securities investment funds conversion rate of less than 80%.

通知还明确了担保和贴现率为上海180股票指数：安全，不超过70％的转换率，其他A股和B股，转换率不超过65％，ST股票和0％的转换率认股权证； ETF的折扣率不超过90％，而国家债务不超过95％的转换率，其他债券和其他上市证券投资基金转换低于80％。

A total of one hundred fifty three healthy male and female adults were entered into a six month,doubleblind clinical study designed to evaluate the effect of a dentifrice containing 0.3% triclosan and 2.0% PVM/MA copolymer in a 0.243% sodium fluoride/silica base, relative to a 0.243% sodium fluoride silica base control dentifrice on supragingival plaque accumulation and gingivitis.

本研究的目的是证实含0.3％三氯羟苯醚，2.0％PVM／MA及0.243％氟化钠以二氧化硅磨料牙膏在减少菌斑积聚和牙龈炎形成方面对中国成年人群的效果。153名健康男女分为实验组及对照组，用双盲法评价6月后临床效果。采用纳入和排除的评价标准后进行了基线检查，实验对象每日使用分配的牙膏和软毛牙刷早晚刷牙一次，3个月和6个月再次检查。检查结果表明，使用含有三氯羟苯醚－共聚体牙膏组与使用不含该成分的对照组相比，实验对象的牙菌斑、牙龈炎指数分别减少16.1％及24.3％，均有统计学显著性意义（P＜0.001）。

There are totally five chapters in the paper. Chapter 1 is the introduc-tion,and extreme value theory and methods and modelling for returns fat tails are introduced systematically in Chapter 2.This chapter also presents mean excess function and de Haan's moment estimate to decide on the reasonable exceedance threshold. Chapter 3 describes in detail non-linear time series mod-els such as GARCH models and the corresponding statistical inferences,and it also gives modelling and statistical analysis methods for returns series. Chap-ter 4 uses the models in Chapter 2 to analyzes the daily returns for Shanghai complex index and Shenzhen complex index in the Shanghai and Shenzhen stock markets. Chapter 5 applies the models in Chapter 3 to the volatility analysis of the two stock indices returns.

论文总共五章：第一章是引言部分；第二章系统介绍了极值理论方法和收益率厚尾的建模方法，给出了平均剩余函数法和de Haan矩估计相结合的方法确定合理的超越门限；第三章详细论述了非线性时间序列模型GARCH类模型及其统计推断，并且给出了收益率时间序列波动的建模和统计分析方法；第四章利用第二章的模型对国内沪深两市大盘指数上证综指和深证综指日收益率数据分布的厚尾进行了实证分析；第五章将第三章的模型应用到两个股指日收益率时间序列的波动分析。

Physicochemical property analysis and ferrography analysis are used to monitor the variation of evaluation indexes of engine oil such as viscosity, acid value, water content, flashing point, ignition point, severity of wear index and number of large abrasion particles, and the degradation of engine oil was analyzed. Using grey relational analysis, the relational degree and the relational order between mileages and evaluation indexes are determined and provide the basis for periodic oil-change and selection of monitoring indexes.

应用理化分析和铁谱分析方法，监测汽车发动机润滑油粘度、酸值、水分、闪点、燃点以及磨损烈度指数和大磨粒数等评价指标的变化，研究了汽油机油衰变规律；通过灰色关联分析，确定了汽车行驶里程与发动机油液监测指标间的关联度和关联序，为油液监测下的定期换油和监测指标的筛选提供依据。

From the point of view of geobotany, with the method of correlative factors of growth of plants, a countrywide theoretic ecological division was done for the introduction of Camptotheca acuminata and three kinds of areas of ecological preferent zone, ecological adaptive zone and ecological unadaptable zone were divided. With the theory of synecology, the characteristic on environment, constitution, life form spectrum, diversity, similarity of plots of communities were researched. Applying the method of species association, discrete distribution, indensity index, fractal geometry, etc. to research relations between the species of the communities, space distribution of Camptotheca acuminata, structure of age of Camptotheca acuminata, in different communities. Using the theories of autoecology, distibutons of seeds on land and growth of seedlings in vertical and horizontal directions, biomass of organ of Camptotheca acuminata were analyzed. On the opinions of conservation biology, the external and internal factors impressing Camptotheca acuminata were analyzed to research the mechanism of the endangered species, and with using of CTM Model, the future development direction of Camptotheca acuminata in different communities were forecasted, and. Standing on the position of resources ecology, discussing the regularity of camptothein in Camptotheca acuminata of different sites and seeding of different resources, also the the derive technics of camptothecin.

本文从地植物学的角度，运用植物生长相关因子法，对我国喜树资源的生态适宜区进行了划分，理论上确定了我国的喜树的引种栽培的最适生活区域、生态适宜区域和不适宜生活区域；从群落生态学的角度，对野生喜树所在的典型群落的群落环境、群落组成、群落生活型谱、群落的物种多样性特点、群落样地间相似性进行了研究；从种群生态学的角度，运用种间联结性、离散分布模型、聚集强度指数、分析几何等分析手段，对野生喜树所在典型群落间的种间关系、喜树的空间分布格局、年龄结构等进行了分析；从个体生态学的角度，对不同年龄组的喜树的种子的散落的垂直分布、水平分布、时间分布及种子发芽率和千里重等特点、不同种源的人工喜树苗期特点、喜树的高生长和茎生长特点、喜树的器官生物量特点进行了研究；从保护生物学的角度，对野生喜树的濒危的内部因素和外部因素进行了探讨，并运用CTM模型对不同群落中野生喜树的种群趋势进行了预测；从资源生态学的角度，对我国地理环境下喜树中喜树碱含量的地理分布规律、不同种源的喜树幼苗中喜树碱含量变化规律进行了研究，并对喜树碱的提取工艺进行了探讨。

However, not significant relationships were found between soil respiration and soil moistures at 5 cm depth in all study plots. Soil temperature and moisture together could explain changes in soil respiration of 75.2% and 93.7%, and 90.0% and 92.8% in litter exclusion and addition plots in the Liquidambar formosana and Cinnamomum camphora forests, respectively.

两种群落去除和添加凋落物土壤呼吸的季节变化均与5 cm土壤温度呈显著指数相关（P﹤0.001），与5 cm土壤湿度相关性不显著（P＞0.05）；土壤温度和湿度可以共同解释去除和添加凋落物后土壤呼吸变化的95.2%、93.7%和90.0%、92.8%。

This paper discusses grain security in Guanzhong basin based on the model of cultivated land pressure index and minimum area of per capita cultivated land through using Lotus 123 for Windows software and setting up the databases of " people-cultivated land-grain production ".

本文根据最小人均耕地面积和耕地压力指数理论，应用趋势预测分析和回归分析方法，建立研究区域粮食安全状况预测模型，进行预测分析研究。论文主要以陕西省关中地区为例进行分析与实践论证。结果为，1999年关中地区粮食处于安全状态，对于各个地区而言，西安和铜川的粮食状况不容乐观；而宝鸡、咸阳、渭南和杨陵区粮食状况相对安全。特别是杨陵区，在农业科技不断进步的作用下，耕地生产力水平提高，因此粮食状况最安全。

The structure-toxicity relationship of 59 substituted benzenes was studied by the method of bayesian regularization neural network,and a QSAR model was built for environmental toxicity evaluation and prediction of substituted benzenes with lipid-water partition coefficient and four quantum indices.

利用贝叶斯规整化神经网络研究了59种苯取代的环境毒性和分子结构的关系。建立了基于脂水分配系数和4种量子指数的QSAR环境毒性预测模型。结果表明：该模型的预测性能超过偏最小二乘法和逐步线性回归方法，残差分析显示其稳定可靠，有望成为一种良好的苯取代物毒性的环境评价和预测的方法

It is because the spending of area and power of the SRAM memory cell takes a lot of percentage of the whole macro modules'. Using the α exponent MOSFET model to result the word line、bit line power model and delay model, together with the area model and analysis of the read/write reliability, we bring out a method to optimize the memory cell and evaluate the performance of the result.

特别对占模块面积和功耗绝大部分比例的SRAM存储单元做了细致的设计和仿真实验，通过采用α指数MOSFET模型推导出SRAM的字线、位线功耗模型和延迟模型，并配合存储单元的面积模型和读写可靠性分析，提出了一种优化存储体单元结构的方法，并对优化前后的性能进行了评估。

Methods Peritoneal macrophages of guinea pigs were infected in vitro by three different Leptospira strains, the virulent Leptospira interrogans serovar Lai type strain Lai, the avirulent L. interrogans serovar Lai type strain IPAV, and the nonpathogenic L. biflexa serovar Patoc type strain PatocⅠ, respectively, and heat inactivated Staphylococcus epidermidis was added 0.5, 1.5, 3 and 6 h after infection and incubated for 30 min. The effect of Leptospira on the phagocytosis of macrophage was evaluated by the inactivated Staphylococcus epidermidis phagocytosis rate and phagocytosis index. Phagocytosis and ultrastructure of peritoneal macrophages were observed by transmission electron microscopy 3 h after infection, and changes of cytoskeleton of the macrophages were observed by laser scanning confocal microscopy.

用三种不同毒力的钩体（致病性问号钩端螺旋体赖型有毒株Lai株、赖型无毒株IPAV株以及非致病性双曲钩端螺旋体Patoc型PatocⅠ株）分别感染体外培养的豚鼠腹腔巨噬细胞，并分别于感染后0.5、1.5、3和6 h加入热灭活表皮葡萄球菌孵育30 min，通过计算巨噬细胞对灭活表皮葡萄球菌的吞噬率和吞噬指数，检测钩体对巨噬细胞吞噬功能的影响；感染后3 h透射电镜观察巨噬细胞对钩体的吞噬、降解和细胞超微结构的变化；用激光共聚焦显微镜观察细胞对钩体的吞噬和巨噬细胞细胞骨架的变化。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。