对面的

The interpolate algorithms of three-order NURBS curve and double three-orders NURBS surface are presented. The expressions of partial derivative and normal curvature of NURBS surface are derived by the theory of differential geometry. The geometric characteristics of different curvature area of the free-form surfaces are analyzed in detail. All these work lays a theoretical foundation for constructing the cutter location calculating model of free-form surfaces NC machining. 2 On the basis of analyzing the methods of cutter path generation, the standard of evaluating the various methods of cutter path generation is presented. The method of generating cutter path with constant scallop height is presented for the first time.

本文以提高复杂曲面多坐标数控加工精度和加工效率为目的，在对国内外研究现状进行深入分析的基础上，对数控编程中各环节的关键技术问题进行了深入研究，主要内容包括以下几方面： 1 分析了复杂曲面各种造型方法的优缺点，给出了根据各种边界条件所确定自由曲面的NURBS表示方法以及三次NURBS曲线曲面反算算法；用微分几何理论推导了NURBS曲面的偏导矢及法曲率计算表达式；对曲面不同曲率特性区域的几何特征进行了深入分析，为建立复杂曲面的数控加工刀位计算模型奠定了理论基础。

Since the concept of NA have a lot of applications in multivariate statistical analysis, reliability theory and percolation theory, various aspects of NA are significant and have been investigated by a host of scholars Fist, we give some Fuk-Nagaev type probability inequalities, moment inequalities of maximal partial sum for sequence of NA random variables, and some strong law of large numbers and complete convergence for sequence of NA random variables are obtained.

在本论文中我们对不要求强平稳或同分布的NA随机变量列进行了多方面的研究：首先对NA列建立了一组具有NA特点的关于最大部分和的Fuk-Nagaev型概率不等式及其关于某一类特定函数的矩不等式，它们在后续给出的极限定理的证明中发挥着重要作用；研究了具有不同分布的NA列的强收敛性，如对NA列建立了更一般条件下的Wittmann型强大数律及完全收敛性，同时也进一步改进了R。

Results: The major findings are:(1) the public held strong belief in the preventability of AIDS/STDs and considered prevention was of greater importance than biomedical interventions,(2) of the possible prevention strategies proposed by the research participants, personal behavior control was deemed as the most ef fective; meanwhile a sense of powerlessness was expressed while mentioning the government's responsibility for keeping the quality of blood supply and managing the potential dangers posed by other people's behavior,(3) condoms were well accepted as an effective tool for AIDS/STDs prevention but were used mostly for the purposes of contraception than HIV/STDs prevention, and (4) people were unwilling to use condom mainly due to sensational and psychological discomforts.

结果：(1)民众多认为爱滋病的「可预防性」极高，且视预防比高科技的解决方式重要；(2)个人行为的控制乃最受民众重视的防治途径；但对政府的血液安全管制及他人行为所可能造成的危害较感无力；(3)民众对保险套之使用持相当肯定之态度，不过曾使用者绝大多数以避孕而非以预防性病为主要目的，男女性在这方面的行为差异极大；(4)身体及心理上的不适与不悦被一般民众指出是保险套使用率低的主要原因，(5)教育程度对民众在预防的认知及信念扮演极重要的角色。

Results: The major findings are:(1)the public held strong belief in the preventability of AIDS/STDs and considered prevention was of greater importance than biomedical interventions,(2)of the possible prevention strategies proposed by the research participants, personal behavior control was deemed as the most effective; meanwhile a sense of powerlessness was expressed while mentioning the government's responsibility for keeping the quality of blood supply and managing the potential dangers posed by other people's behavior,(3)condoms were well accepted as an effective tool for AIDS/STDs prevention but were used mostly for the purposes of contraception than HIV/STDs prevention, and (4)people were unwilling to use condom mainly due to sensational and psychological discomforts.

结果：（1）民众多认为爱滋病的「可预防性」极高，且视预防比高科技的解决方式重要；（2）个人行为的控制乃最受民众重视的防治途径；但对政府的血液安全管制及他人行为所可能造成的危害较感无力；（3）民众对保险套之使用持相当肯定之态度，不过曾使用者绝大多数以避孕而非以预防性病为主要目的，男女性在这方面的行为差异极大；（4）身体及心理上的不适与不税被一般民众指出是保险套使用率低的主要原因，（5）教育程度对民众在预防的认知及信念扮演极重要的角色。

Considering the effect of the angle of internal friction on the inclination of sliding plane of soils behind retaining wall, circular and catenary, the two shapes of minor principal stress arch are theoretically analyzed. According to the shapes of minor principal stress arch, the coefficients of earth pressure corresponding to different angle of internal friction and that of wall friction are gained.

为克服现有考虑土拱效应的土压力计算方法不能考虑墙土摩擦角变化对挡土墙后土体滑裂面的影响的不足，考虑墙土摩擦角变化对挡土墙后上体滑裂面倾角的影响，对圆弧和悬链线两种拱形分别进行了分析，并与现有方法计算结果进行了比较。

The time space regularity of overlying strata movement and damage induced by coal mining was studied using the dynamic mechanics model. The developing regularty of faults and bed separation as well as surface subsidence caused by mining was analyzed based on the geological and mining conditions of working face 5306 in Xinglongzhuang Coal Mine. The data explaination using the model is more reasonable than that using other models. So it can be used in practical mining activities.

采用采动岩体动态力学模型，对采动引起的覆岩移动破坏的时空规律进行了研究，结合兴隆庄矿5306工作面的地质、开采条件，对采动引起的断裂带发育发展规律，岩体内部离层发生发展规律、地表下沉规律等问题进行了分析，并对观测结果作出了较以前的各种理论模型更为符合实际的解释，该模型可在实际工作中得到很好地应用。

So,the massive data acquired in the period from January to December in 2006 and authorized by CAIDA Skitter project were used to analyze the searched topological data at CAIDA(cooperative association for Internet data analysis) router level,thus describing the characteristics of the distribution of the degree s of nodes at router level.

针对目前对路由层面的Internet拓扑研究较少的问题，基于2006年1月至2006年12月采集的CAIDA Skitter项目授权的海量数据，对CAIDA路由层面拓扑探测数据进行了分析，描述了路由级节点度分布的幂率性。在此基础上计算出了更能体现网络拓扑层次性的各节点的核数，描述了节点核的幂率分布性质，进一步分析了节点核数与度之间的关系。研究表明，对低核节点，其度分布存在着幂率性质

This result was caused by various factors, but, I think, the important element is not only new intellectual did not unbind traditional social system and conform different group, but also did not devise new political order rationally.

虽然出现这一结局的原因是多方面的，但从一定意义上来说，新兴知识分子对传统社会秩序解构不够，对现存离异集团整合不够，对新政治秩序理性设计不够也是不可忽略的一个重要因素。

It is the fluorosilicic ion that exsits in the slurry and plays an important role in flotation, fluorosilicic ion not only reacted with Fe〓 on the surface of aegirine to form ionic compound, but also formed stable Si-F bond in Si-O etching reaction. Only ionic compound was obtained when it was attached to hematite surface according to the theories of coordination chemistry, Compared with SiF〓, Fatty acid ion preferentially acts with Fe〓 on the minerals surface, therefore, SiF〓 Can't obstruct the adsorption of collector on the surface of hematite completly, but can reduce the flotation recovery of aegirine selectively.

运用FTIR、XPS等测试方法仔细研究了氟硅酸盐抑制剂对含铁硅酸盐钠辉石的选择性抑制作用机理，氟硅酸盐在弱酸性条件下对赤铁矿浮选的抑制作用很微弱，而对含铁硅酸盐钠辉石强烈抑制，从而扩大了两者之间的浮选差异；SiF〓是矿浆中起抑制作用的主要成分，SiF〓不仅与钠辉石表面的Fe〓形成离子型配合物，而且还与Si-O键形成稳定的Si-F共价键，而与赤铁矿表面只能形成离子型配合物，根据晶体配位场理论，与SiF〓相比较羧酸根离子将优先与矿物表面Fe〓发生配位作用，因此SiF〓的存在并不能完全阻碍捕收剂在赤铁矿表面的吸附作用，却能够选择性地抑制钠辉石的上浮。

EN is mechanical to alvine mucous membrane the protective screen of machinery of mucous membrane of protective action bowel of protective screen is main by mucous membrane of the mucus layer of surface of alvine mucous membrane, bowel epithelial reach its the composition such as close connection.

肠内营养对肠屏障功能的维护机理是多方面的，EN制剂的种类对小肠功能的改善功能也不相同。1 EN对肠黏膜机械屏障的保护功能肠黏膜机械屏障主要由肠黏膜表面的黏液层、肠黏膜上皮细胞及其紧密连接等组成。

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％。