指数型

When the hens were exposed to high temperature, the egg production, egg weight and shell thickness were decreased, the alhumh height and Haugh unit were increased, but the egg shape index had no significant change.

高温显著降低产蛋量、蛋重和蛋壳厚度(P.01)，显著提高蛋白高度和哈夫单位(P.05)，但对蛋型指数无影响。

Egg quality traits of 901 hens from a pureline of dwaf layers were measured at the age of 40 weeks, including egg weight, Haugh Unit, shell strength, shell color, shell thickness, egg shape index and yolk color.

结果表明：矮小型蛋鸡40周龄蛋品质性状蛋重、哈氏单位、蛋壳强度、蛋壳颜色、蛋壳厚度、蛋形指数和蛋黄颜色的测定结果分别为：53.80g、86.40、3.3 kg／cm~2、41.78、342.90 μm、1.40、6.8。

In general, this paper includes several parts, shown as the following: The first part summarizes the background and outline of stock index future and introduce briefly its local status and CSI 300 stock index future contract. The second part has a retrospect of the main academic papers of both local or overseas, and also a discussion of relevant hedge strategies and models, to lay a solid theoretical foundation for the empirical analysis and test for the operation process of hedge in latter parts. The third part outlines the principle, key factors and real operation process of hedge. Moreover, it makes a empirical analysis on popular hedge models with HK Hang Seng index. In the end, it test the hedge effect of trading on IF0706, CSI 300 stock index future contract, with CCB select-growth securities fund as present underlying. The fourth and also the last part, explores how to define hedge ratio in china mainland market. It includes the stability test ofβfor local securities portfolio, adjustment of historicalβand best data length for estimation of historicalβ, etc. Also, the thesis makes some beneficial experiments on the definition of best data length for estimation of historicalβ, survey of fashion forβand variation for industryβs. Fortunately, it's got some meaningful results.

按照以上研究思路，本论文论述由以下几个部分构成：第一部分，简要概述股指期货产生的背景和基本情况，对国内股指期货进程和沪深300股指期货合约进行简单介绍；第二部分，回顾海内外股指期货避险研究的主要文献，讨论相关避险策略及避险模型，为后面套期保值策略如何有效运用的实证分析和检验提供理论基础和依据；第三部分，对套期保值的原理、关键因素及实际流程进行概述，并采用香港恒生指数对常用的几种避险模型进行实证分析，最后一揽子以建信优选成长股票型基金为现货标的，实际检验以沪深300股指期货模拟交易IF0706产品进行对冲时的套期保值效果；第四部分，探讨国内确定避险比率的过程，包括国内股票组合β值的稳定性检验、历史β值的修正及估计历史β值的最佳数据长度等，通过数据分析，本文在寻找估计β值的最佳数据长度和考察风格、行业β值的差异上做了较为有益的尝试，并得到了有助于现实操作的结果。

Plane strain, mode I quasi-static steady state crack growth is investigated utilizing the finite element method. It is once again established that TNT plasticity can significantly increase the stress level near the crack tip. The crack tip stress singularity is higher than or equal to the square-root singularity of elastic K field and is also independent of the plastic hardening exponent.

采用有限元方法研究了平面应变Ⅰ型准静态的稳态裂纹扩展，再次证实TNT非局部理论能够显著提高裂纹尖端附近的应力水平；裂尖应力场的奇异性超过或等于弹性K场平方根奇异性，而且与塑性硬化指数无关。

Objective To evaluate whether the homeostasis model assessment is a reliable index in Chinese type 2 diabetic patients.

目的评价HOMA法胰岛素抵抗指数是否适合于中国 2型糖尿病胰岛素抵抗的临床应用。

In this paper, we proposed a new type multiplicative Knapsack public-Key cryptosystem, which is based on the index theorem.

本文基于指数原理，构造了一种新的乘积型背包体制。

The cost function of the systems is given in terms of integral quadratic function including both index exponent and failure controls.

系统的性能函数是含有指数项和故障输入项的积分二次型函数。

The single dimple initial geometry defect is described by using high order Legendre polynomial with modulation factor of Gauss index.

对于凹圈型初始几何缺陷，用带高斯指数调制因子的高次 Legendre多项式进行数学描述。

This experiment works on:1.prepare marrow cell chromosome samples;2.take pictures of chromosome in karyon by lens-check;3.Measure the length of chromosome short arm and long arm,calculate the relative length of frog chromosome and the arm index and the position of centromere,with the leven method of outside-body karyon pattern analysis.

本实验制备了骨髓细胞的染色体标本，并且通过镜检拍下一个细胞核中染色体的照片，用leven方法进行体外核型分析，测量每条染色体的长臂长与短臂长，并计算出青蛙染色体的相对长度，臂指数和着丝粒。

All cases tested were immunoreactive for S100 and CD34; Mib-1 reactivity was absent to low. Cytogenetic aberrations included chromosome 8 abnormalities in 8 cases, nonspecific numerical abnormalities in 1 case, and a normal karyotype in 1 case. Ten patients had other medical conditions including macrocephaly, seizures, developmental delay, autism, congenital anomalies, Sturge-Weber syndrome, or a family history of multiple lipomas.

免疫组化所标病例均表达S100和CD34 ；Mib-1指数为零或低。8例细胞遗传学显示8号染色体异常，1例显示非特异性染色体数目异常，1例显示正常染色体组型。10例患者伴有其他疾病：巨头畸形、癫痫、发育延迟、自闭症、先天畸形、斯德奇-韦伯综合症、多发性脂肪瘤家族史。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐