次因子

By using equilibrium constant, activity coefficient, water activity and relative humidity of deliquescence properties in secondary aerosol model, we set the model and tested the sensitiveness.

本论文的研究内容主要将大气中二次气胶生成机制并入光化学轨迹模式中，利用大气气相-气胶之间热力动性质平衡常数(K、活性系数、水活度、相对潮解湿度，建置二次气胶模组，并测试二次气胶模组对各影响因子的敏感度。

Compared with classical cytotoxic T lymphocytes , NK cells are superior in the following aspects: NK cells are among the first cell types to be activated after intracellular pathogen stimuli, the activity of NK cells peaked between 1 to 3 days, retained during the first 7-10 days, and the T cells response emerged only after 7 days when the NK cell responses begin to decline; though comprising of only 10％-15％ of peripheral lymphocytes, NK cells mobilize most of the cell populations in a strong and high level response to different invasions, and act as key factors at early defense before a specific immune response could mount, while only certain clones were involved in T cell response; NK cells kill virus-infected or malignant transformed cells without pre-sensitization and without restriction by major histocompatibility antigen, which is usually a mechanism of immune escape to T cell recognition by virus-infected or tumor cells, thus NK cell in complementary with T cells play crucial roles in tumor and virus eradication.

NK细胞以其强大的细胞毒活性为特征，与细胞毒性T细胞相比，NK细胞具有如下特点：NK细胞虽然只占外周血淋巴细胞的10-15％，但是对刺激性因素产生应答的过程十分迅速，一次可以调动大多数细胞共同参与，而不是几个克隆的活化，免疫应答的强度高；病毒感染或恶性转化细胞的一个主要特征是细胞表达的MHCⅠ类分子下降或消失，并借助这一机制逃避特异性T细胞应答的识别，NK细胞介导的杀伤活性无需抗原刺激，不受MHCⅠ分子表达的限制，从而与T细胞应答互为补充发挥免疫防御的功能；NK细胞的免疫活性可以被多种细胞因子上调，其中IFNα，IL-2，IL-12，IL-15和IL-18具备更强的作用；NK细胞具有强大的细胞因子分泌功能，对于启动T细胞特异性应答必不可少。

We investigated the effect of combined application of maize straw, bean haulm, wheat straw and weathered coal on the activity of alkaline phosphate enzyme in calcareous cinnamon soil by means of regression design of 416A-optimization.

本研究采用四因数二次回归 4 1 6A—最优设计方法，通过裸土盆栽试验，在施用少量N、P肥的基础上，研究了玉米秆、豆秆、麦秆和风化煤四种有机物料配合施用对石灰性褐土中碱性磷酸酶活性的影响，建立了上述四个因子与土壤碱性磷酸酶活性之间的数学模型，并分别进行了试验因子的主效应和互作效应的分析

QIQD uses piecewise quadratic curves to calculate the multiplicator of contending window after a frame collision and the divisor of contending window after a successful transmission, respectively, which is capable of reducing collision probability and improving channel utilization.

QIQD通过分段二次曲线计算数据帧碰撞冲突后增大竞争窗口的倍乘因子和数据帧成功传输后减小竞争窗口的倍除因子，从而能够降低碰撞概率和提高信道利用率。

The status of gradient projection method of redundant manipulator is analysed, the effect and selection methods of the scale factor of the homogeneous solution is expatiated.

分析了冗余度机器人梯度投影法的研究现状，阐述了齐次解的比例因子的作用及其选择方法，提出了一种实时连续变化的比例因子计算方法。

Methods We randomly assigned young boys with severe hemophilia A to regular infusions of recombinant factor VIII or to an enhanced episodic infusion schedule of at least three doses totaling a minimum of 80 IU of factor VIII per kilogram of body weight at the time of a joint hemorrhage.

研究人员将65名30个月龄以上的重度A型血友病男孩随机分为两组，32名患儿规律注射重组VIII因子25IU/Kg，隔日一次，另外33名则在关节出血时注射重组VIII因子至少3个剂量，总量最少要达到80IU/Kg。

With the help of its structure, this paper points out that the non-commutative finite solvable subsimple group will necessarily be a qualitative element group. And referring to the nature of qualitative element group, it can be easily identified the conditions that the ordered prime divisors in a solvable initial finite subsimple group should meet. Suppose that G is always a finite group.

利用其结构，指出了非交换可解有限次单群必为质元群，从而利用质元群的性质，可以很容易地初步确定了可解有限次单群的阶中素因子之间所必须满足的条件，主要得到下面的一些结论：定理1 G是非交换的可解有限次单群，则G′是G的唯一的非平凡正规子群，并且G′是初等交换p -群，此时| G |= p~n q，|G′|=p~n，。

The study period is from 1998 to 2007. The study targets are the ex-dividend events of the all IC firms in Taiwan stock market. After eliminating the samples with incomplete data and disagreement, the sum of samples is 318 ex-dividend events of the 80 firms.

其结构共分为三个面向，第一为探讨产业整体的除权行情，包括全体样本的分析以及历时性的趋势分析；第二为产业上中下游的次产业分类，探讨其除权行情是否有所异同；第三为除权行情的影响因子分析，包含产业景气、盈余成长率、股东配股率、员工配股率、股价净值比、权值股/非权值股共计六个因子。

We will investigate the actuality of stony deserts in Guizhou, and divide their types on the basis of their intensity, covering rate of soil and vegetation and amount of species, and stduy the influence factors of forming different stony desert types in more coercing, and explore the ratio of influence factors in the different stony desert areas and the evolutionary mechanism of different stony desert types. Finally,we will stduy the growing conditions and species of arboreous in different geology, land form,hydrology region for natural lithogenic forest and artificial forest, and the natural conditions for failing in many artificial forest,and the reconstruction mechanism in different stony desert type regions.

对贵州石漠现状调查，并根据石漠发育强度、土被、植被覆盖率和物种多少等进行石漠类型分类；对多重胁迫下不同石漠类型形成因子研究，探讨各影响因子在不同类型石漠区的权值；探讨各类型石漠演化机理；选取不同地质、地貌、水文背景区的原生岩生森林及人工造林区对其乔木的立土条件及物种研究；选取贵州经多次造林失败的石山的自然条件研究并探索不同类型石漠区生态重建机理。

By focusing on the coupling of water and fertilizer and using all-purpose regression design with four factors and five levels, and based on pot experiments and quantitative analysis, the coupling effect of water and fertilizer on Casuarina equsetifolia biomass was studied in order to solve the inconsistency problem of water and fertilizer supply on coastal sandy land.

针对滨海沙地因水肥不协调而形成大面积低效林分的问题，以水肥耦合为中心，以1年生木麻黄幼苗为研究对象，采用四因子五水平二次通用旋转组合设计，利用盆栽试验和定量分析的方法，研究探讨了在不同水肥条件下，水、N、P、K四因子对木麻黄生物量的影响。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。