因子

Objective To detect serum cytokin level of severe hepatitis patients, and investigate the mechanism and clinical significance of cytokin in severe hepatitis patients.

目的 检测各期重型肝炎患者血清细胞因子的水平，探讨细胞因子在重型肝炎发病中的作用机制及临床意义。

Influence factor of shade-grown leaves in photosynthesis in many experiment days.

的主要因子，而叶温多为荫叶光合作用的主要影响因子。

The wall rock alteration is silicification, potash feldspathization and pyritezation. Analyses of the correlation,R-type cluster, orthogonal and oblique factors on some trace elements from 57 samples with primary halo show that the Au,Cu, Ag came into the same ore-bearing hydrothermal p...

通过57个矿床原生晕样品部分微量元素相关分析、R型聚类分析和正交因子、斜交因子分析，表明Au、Cu、Ag组合为主要矿化阶段的元素组合，是化探找矿的重要指示元素。

In chapter 1, similarity and perturbations of nest subalgebras of factor von Neumann algebras are studied. A similarity theorem is given (see Theorem 1. 2. 3), and it is shown that similar nests in a factor von Neumann algebra are close.

第一章研究因子von Neumann代数中套的相似性和套子代数的摄动，获到一个相似定理（定理1.2.3），其几何意义是：因子von Neumann代数中相似的套聚拢在一起并可向外扩展。

Finally, the affected degree of factors is evaluated by applying partial relation coefficient analysis method and single factor weighted index method.

结果表明，二手房市场和新房市场具有明显差异，市场供求是影响二手房价格的最主要因子，而环境质量则是影响新开楼盘价格的首要因子；繁华程度和交通条件的重要影响作用在本次回归模型中没有得到验证。

The stress intensity factors of pipes containing an elliptical arc of crack have been evaluated by collapsed singular element with the more detailed mesh on crack front and their respective adjacent areas.

中文摘要本论文对含内、外裂椭圆形裂缝之圆管应力强度因子计算，计算在椭圆形裂缝尖端部位附近，使用溃点奇异元素，建立有限元素的网格化自动产生模型，并利用ANSYS程式计算裂缝尖端的应力强度因子。

Stress intensity factor is obtained by solving singular integral equation. Numerical examples are given to show the effects of material properties, interlayer thickness, and especially the distribution parameter k on the stress intensity factor.

通过处理奇异积分方程得到了应力强度因子，数值结果给出了材料特性、界面层厚度、尤其是分布特征参数k对应力强度因子的影响。

With this method, we had several important differences compared to the YDmodel. First, the ratio of daily increment of PDT and the deficit of both water and nitrogen was used to estimate the effect of environment. Second, a nonlinear function was adopted to describe vernalization and thermal effectiveness (instead of three-stage linear function). Third, sinusoidal function was used to describe photoperiod curve cluster for different cultivars.

本模型在YDmodel基础上的改进主要有3点：（1）将每日生理发育时间的增量乘以水肥丰缺因子，改为除以水肥丰缺因子表现水肥对大麦发育的影响，客观体现了大麦在水肥丰缺条件下的发育延迟或提早现象；（2）将三段线性函数改为非线性函数表达春化效应和相对热效应，确立了不同品种相对春化效应和相对热效应的曲线族；（3）将线性函数改为正弦函数表达不同品种光周期效应。

In the solution of the Difichlet boundary problem ofLaplace equations, we provide an effective method for determining the spectral radiusand the best slack variable of block basic iterative methods. At the same time, wepresent the spectral radius and the best slack variable of basic iterative methods from thenine-point difference scheme.

在解决Laplace方程Dirichlet边值问题上，文章为确定块基本迭代方法的谱半径和SOR方法最优松弛因子提供了一个有效的方法，并推导了九点差分格式下的块基本迭代方法的谱半径和SOR方法最优松弛因子。

A transportation engineering research and development program assessment method basing on DEA is formulated for prediction of efficiency index, production possibility set's restraint coefficient and inputoutput slack variable. Then use the reciprocal process of principle factor method to calculate the effective availability of research and development personnel and funds.

并采用构建基于投入的交通科技项目C^2R模型，分析投入因子的效率评价指数、生产可能集约束系数和投入／产出松弛变量，结合因子分析逆向求解得到投入指标的有效值，从而得出交通科技项目投入人员及经费的有效利用率。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。