次因子

It is proved that the relationship of quadratic function exists obviously between yield and feitilizer factors.

对获得的肥料效应函数的解析结果表明，各肥料因子与产量之间存在着二次函数关系。

The first kind of the digital signature schemes is based on the discrete logarithm problem and second kind of the digital signature scheme is based on discrete logarithm and factorization problem, the third kind of the digital signature schemes is based on quadratic residue problem.

本文第一章对数字签名方案进行分类，根据数字签名方案所基于的数学问题，将签名方案分为：基于离散对数问题的数字签名方案，基于素因子分解问题的数字签名方案和基于二次剩余问题的签名方案。

In this paper, a effective method of the shape control of rational quartic Bezier curves based on the weights modification was presented.

给出了一种基于权因子调整的四次Bézier 曲线形状控制的有效方法。

The relationship between the transformation of weights on rational Bézier curve and parameterization of the curve with the shape unchanged is discussed.

研究了在曲线形状保持不变的条件下，有理n次Bézier曲线的权因子改变与曲线参数化的关系。

On the basis of the previous results and according to the central composite experimental design principles,the method of response surface method with 3 factors and 3 levels was adopted.then the factors influencing the technological parameters were determined by means of regression analysis.response surface and contour were finally graphed with the extraction rate as the response value.resultsthe optimum conditions of lycium barbarum polysaccharides extraction were as follows:the ratio of material to solvent of 1∶32,extraction temperature of 84℃ and extraction time of 2.3 h,one time extraction.conclusionthe yield of lycium barbarum polysaccharides is 11.10% under the optimum conditions.

方法在单因素实验基础上选取实验因素与水平，根据中心组合（box-benhnken）实验设计原理采用3因素水平的响应面分析法，依据回归分析确定各工艺条件的影响因子，以多糖提取率为响应值作响应面和等高线。结果在分析各个因素的显著性和交互作用后，得出枸杞多糖水浸提的最佳工艺条件为：料液比1∶32；浸提温度84℃；浸提时间2.3h；浸提1次。结论在最佳工艺条件下，枸杞多糖的实际提取率可达11.10%。

The "regulable osteoinduction microcirculation/microenvironment system in vivo" has characteristics as follows: the culture conditions are controlled. For example, the release of a variety of growth factors can be controlled stably and quantitatively at bone defect site. Early nutrition and revascularization in the center of tissue-engineered bone can be effectively solved; some shortcomings resulted from construction of tissue-engineered bone in vivo, including secondary injury, high level technical requirements, and complex operation, can be avoided; vascularization and osteogenesis can be constructed simultaneously; simple safe and efficient operation.

可调控的体内灌注诱导成骨微循环系统具有以下特点：可以控制诱导培养条件，如调控各种生长因子微量稳定的缓控释放；能有效解决大块组织工程骨中心部位的早期营养和血运重建难题；避免了组织工程骨体内构建存在的二次损伤，需要较高的技术条件、操作较为复杂等缺陷；实现血管化与成骨的同步构建；操作简便，安全高效。

It is shown that the wrinkle recovery angle of the finished fabric was increased and the anti-crease property was improved as well as other properties such as retentivity of whiteness and breaking strength were good. The cotton fabric, which was treated with finishing agent containing 10% nano-ZnO, had UPF rate of 50+ and also showed anti-bacterium properties.

结果表明：整理后的棉、丝织物回复角提高，抗皱性改善，且有较好的强力及白度保持率；经纳米氧化锌水溶性聚氨酯整理剂整理的纯棉织物，10次水洗后的UPF等级达到50+，整理剂放置30天后，再经轧烘焙整理织物的紫外防护因子UPF保持率分别为95.39%和95.11%，UPF等级保持不变。

On the basis of pollen analysis of Nanwangzhuang Section, the Ningjingbo area, in combination with other results of the North China Plain, the author advanced the contents of Selaginella sinensis can be as a proxy for reflecting the scale of human activities.

以宁晋泊地区南王庄剖面孢粉分析资料为基础，综合研究华北平原他人的科研成果，提出了中华卷柏孢子在孢粉中含量的变化作为诠释人类活动的因子，这是一次新的尝试。

Internationally acknowledged academic periodicals of comprehensive or first-rate disciplines are mainly published on weekly or semimonthly basis, domestic professional periodicals are also having their publishing cycle shortened.

其实，内容与形式的关系是辩证的，在一定的条件下形式也会影响内容，学报发刊周期的长短，就会直接影响学报论文的信息传播速度和范围，从而影响学报的被引频次和影响因子。

For the first time the endplate bolted connection's finite element model with the original crack is set up by the singular element, the fracture problem study is introduced to the finite element analyzing. The J integral value and stress intensity factor of the crack tip are calculated by the ANSYS Parametric Design Language program, and the developing of original crack is judged from the K Rule and J Integral Rule.

第一次通过构造奇异单元来建立带初始裂纹的节点有限元模型，将断裂问题的研究引入到端板螺栓节点的有限元分析中，并通过ANSYS软件中Parametric Design Language编程来计算裂纹尖端的J积分值、应力强度因子，根据断裂力学中的K准则、J积分准则判断初始裂纹是否会重新启裂。

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。