查询词典 notching curve

Then, based on the mean curvature, Gaussian curvature and the function of principal curvature, the minimal loci of the principal normal surfaces of curves, the curves with constant Gaussian curvature and the two curves of which the ratio of their functions is constant can all be obtained, as well as the properties of geodesic curve and lumbar curve.

再根据平均曲率、高斯曲率及主曲率函数，能得到曲线的主法线曲面的极小轨迹、常高斯曲率曲线及两个主曲率函数之比为常数的曲线。还给出曲面上测地线和腰曲线的性质。

The eighth chapter begins with discussion and empirical demonstration of Chinese benchmark rate, simulates and regresses the benchmark yield curve of Chinese bond according to the latest data, reviews factors having influence on Chinese benchmark yield curve through principal components analysis, illuminates the inescapability of regulation of Chinese bond yield structure through the comparative study on American bond yield curves with different terms.

第八章开始是对我国的基准利率进行探讨和实证分析，接着根据最新的数据来模拟和回归出我国国债的基准收益曲线，在此基础上运用主成分分析法考察了影响我国基准收益曲线的因素，并通过对美国不同期限国债收益率曲线的比较研究，来说明我国国债收益率结构的调整具有不可避免性。

Vesic's solutions to cavity expansion that include cylindrical cavity expansion and spherical cavity expansion are introduced. Then cylindrical cavity expansion theory is applied to study compaction effect of pile driving in saturated soil. Based on the results of conventional triaxial tests, a trilinear curve model is used to simulate stress-strain curve of strain-softening materials. Meanwhile, trilinear curves are also used to simulate curves of volumetric strain, minor principal strain and major principal strain. By using elasto-plastic theory, analytical solutions to cylindrical cavity expansion in strain-softening soil are presented. According to the mechanism of statically pressed pile driving, compaction effect of pile tip can be viewed as hemispheric cavity expansion. Therefore spherical cavity expansion theory is applied to obtain the solutions to stress, strain, displacement fields and final pressure. Resistance force of pile tip is calculated to estimate static pressure.

介绍了Vesic关于圆孔扩张问题的解答，其中包括柱形孔扩张问题和球形孔扩张问题，并应用柱形孔扩张理论分析了饱和软土中的沉桩挤土效应问题；在常规三轴试验成果的基础上，采用三折线模型模拟具有应变软化性质的岩土材料的应力应变关系曲线，分析了在应变软化土体中沉桩时桩周土的位移场、应力场和应变场的变化，得到了解析解答；分析了静压桩的沉桩机理，并利用球形孔扩张理论，视桩端处的挤土为半个球形孔的扩张，分析了桩端处土的位移场、应力场和应变场的变化，并根据最终扩张压力计算出沉桩时的桩端阻力，可作为压桩力的估算。

In consideration of kill probability and effectiveness of missile weapon system, the thesis researches on kill probability curve and effectiveness curve in attack area.

考虑到导弹武器系统的杀伤概率值和效能值的问题，对在导弹的杀伤区内画出等杀伤概率曲线和等效能曲线进行了研究。

In case of defining the probability distribution curve, the hydrological frequency computation is to estimate the parameters of the curve from the observed series.

在概率分布线型确定下，水文频率计算就是根据样本资料估算其中包含的参数。

A method of assessing the functional properties of multi-scale surface was presented based on material probability curve and material ratio curve,and manufacturing control to meet the functional requirements for surface was investigated.

基于概率曲线和支承率曲线，提出一种多尺度表面形貌的功能评定方法，并研究了表面形貌的加工控制问题。

The initial age, gender, pubertal status, and initial curve magnitude were used as risk factors to predict the probability of curve progression to more than 30 degrees at skeletal maturity.

最初年龄、性别、青春期体质和初始曲度作为危险因子以预测骨骼成熟时曲度进展达到30°以上的可能性。

Surface topography;multi-scale surface;material probability curve;material ratio curve

表面形貌；多尺度表面；概率曲线；支承率曲线

In order to improve the security, a signature scheme based on two hard problem assumptions is proposed. The security of the scheme is based on the difficulties of simultaneously solving the elliptic curve and quadratic residue. A attacker can't forge the signature of messages even if a attacker can solve theelliptic curve discrete logarithm problems or quadratic residue problem in the scheme.

为了提高签名的安全性，本文对Wang等人提出的签名方案进行改进，提出了一个基于椭圆曲线离散对数问题和二次剩余问题的数字签名方案，并对该方案的安全性进行分析，指出在椭圆曲线离散对数问题或二次剩余问题可解的情况下，攻击者也无法伪造消息的签名。

In order to realize the transition from quartic Wang-Ball to Said-Ball curve, and the transition from quartic Said-Ball to B6zier curve, two new classes of curves with shape parameters are defined.

为了实现从四次Wang-Ball到Said-Ball曲线的过渡，以及从四次Said-Ball到B6zier曲线的过渡，定义了2种带形状参数的曲线。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。