By using the semi experiential engineering arithmetic based on the ideology of area ratio, the slope of lift coefficient curve, the zero lift drag coefficient and the induced drag factor of double delta wing aircraft were calculated.
采用基于面积比思想的半经验工程算法计算了双三角翼飞机的升力系数曲线斜率、零升阻力系数和诱导阻力因子。
To the separatory funnel in 10 ml acetate buffer and dispensable 1 ml of sodium thiosulfate solution, blending, followed by a second all-Canadian 10.0mL tetrachlorocarbon dithizone-0.01g/L solution, vibrating 2min, standing out carbon tetrachloride layer to 1 cm chromatometry Cup, zero-zero, adjusting to 520nm wavelength measuring the absorbance at, draw a comparison between the quantitative standard curve.
向各分液漏斗内加5mL乙酸盐缓冲液及1mL硫代硫酸钠溶液，混匀后再各加10.0mL二硫腙－四氯化碳溶液(0.01g/L)，振摇2min，静置分层，分出四氯化碳层于1cm比色杯中，以零管调节零点，于520nm波长处测吸光度，绘制标准曲线比较定量。
Adaptive control is used to optimize the domain of PWM duty ratio, the minimum ramping time and idle speed. According to the normally used working zero of engine, the engine fuel supply control, pump power control, difference pressure of load sense valve control and output pressure of proportional relied valve control are coordinated. The method of adjusting P-Q curve is put out to realize economic matching among engine, pump and load.
根据发动机最常使用的三个转速区间，通过对发动机供油量控制，液压泵的功率控制，负载传感阀的压差控制以及比例减压阀的出口压力控制四种控制方式的协调匹配，提出了变p-Q曲线的功率协调匹配控制方法实现发动机-泵-负载的经济性协调匹配控制。
Bridge engineering; self-anchored suspension bridge; parabola; segmental catenaries; cable curve; zero-stress length
桥梁工程；自锚式悬索桥；抛物线；分段悬链线；线形；无应力长度
A zero-length spring has a stress-strain curve which passes through zero length when projected back to zero strain.
力-应变曲线在零应变上的投影通过零长。
Can be seen, no overload is the essence of the centrifugal pump, pump shaft power curve peak, or shaft power with the increase of flow rate changes are small, relatively flat power curve that axis, so that the pump shaft power in the dead lift off to zero head (that is, from zero flow to maximum flow rate) are less than equal to the original context of the supporting motive power.
可见，无过载离心泵的实质是指，泵的轴功率曲线有峰值或轴功率随流量的增加而有较小的变化，即轴功率曲线比较平坦，使泵的轴功率在关死扬程到零扬程范围内都小于等于原动机的配套功率。
From the angle of force balance, a physical and mathematical model of liquid outside the insert plate when the angle of solid liquid contact equals to zero is established; and the surface curve shape of liquid is derived and proved.
从力平衡的角度，建立固液接触角为零度时插板外液体的物理数学模型，推导证明液体表面形状曲线方程。
The results show that there exists tax effect in the zero yield curve of the interbank bond market.
然而，在具有小样本特征的市场中，静态利率期限结构模型得到的收益率曲线容易不稳定。
The security of the system was improved by adopting the elliptic curve zero knowledge proof in the paymentprotocol.
在支付协议中采用并行的椭圆曲线零知识证明，提高了系统的安全性。
The improved system utilizes good properties of elliptic curve cryptography system and adopts zero knowledge proof.
改进的系统利用了椭圆曲线良好的密码特性，并采用零知识证明方法。
The using of new circuit breaker with protection function of zero curve broken is extremely beneficial.
采用新型的具有保护零线断线保护功能的断路器是非常有益的。
The composite miccrospheres release curve fit zero-order equition with lower drug loading rate and Higuich model was used to fit that with high drug loading rate.
对缓释期释放数据采用释放模型拟合，载药量低(3%)的明胶微球制得的复合微球释放曲线符合零级动力学方程，载药量高(7%)的明胶微球制得的复合微球缓释期释放呈现两相，前期释放缓慢，用Higuchi方程拟合效果较好，释放后期因PLGA的溶蚀使明胶微球暴露在释放介质中，药物随明胶溶胀而快速释放。
Based on analyzing the biological structure and function of biology nervous system, the paper presents a modularized distributed hierarchical control technology to real-time control the hexapod walking bio-robot, using the wavelet-based neuro-fuzzy networks method at the simulation of the locomotion control. The Matlab simulation results show that robot locomotion follow track is almost identical with the desired curve. The error curve is quickly rapid convergent, and the static error is almost approximate to zero. So it gets over the difficulty of traditional control theory that is difficult to set up the controlled object model and worse adaptive capacity, and the robot control system has the advantages of high static and dynamic performance, strong anti-disturb ability and robustness. The research has established foundation to further perfect the robot locomotion function.
在对生物神经系统结构与功能进行分析和借鉴的基础上，采用模块化分散递阶控制技术对仿生六足爬行机器人进行实时控制，解决了仿生六足机器人实时精确运动控制的问题，并在机器人关节控制模块中运用了模糊小波神经网络控制，实现了机器人肢体运动的快速精确跟踪；通过Matlab进行的轨迹跟踪仿真试验证实：机器人步行足的运动轨迹与期望曲线基本吻合，具有较好的跟踪特性，且误差曲线快速收敛，静态误差趋近于零；由此表明，该机器人控制系统可靠性高，实时性强，具有较好的动、静态特性，以及良好的抗干扰能力和自适应能力，克服了传统控制方法存在的控制模型难以建立、对环境适应能力差等缺点，为仿生六足爬行机器人的进一步研究奠定了坚实的基础。
If the marginal product of an additional worker is zero, then the curve of marginal products will be degenerated to a vertical line.
如果再增加一名工人的边际产品为零，则边际产品曲线退化为一条垂直线。
The curve the X-coordinate of each point on which is zero is just the Y-axis.
其上面每一点的 X 坐标均为零的曲线就是 Y 轴。
By way of research, the profile curve of offset translating follower plate cam for realizing zero degreed pressure angle was explored.
压力角越小传力性能越好，经过研究，探索出了在推程中实现零度压力角的偏置直动从动件盘形凸轮轮廓曲线。
The correlations between zero shear viscosity (η0) and molecular weight at vareus temperatures were established and concluded that the M. of samples were close to Mc The master curve with good superposition was plotted and the two empirical constants of WLF equation were obtained and discussed.
根据求得的零剪切粘度（η0）与分子量的关系推断样品的分子量已经接近临界分子量，并利用转换因子αI＝η0T／η0绘制了样品的叠合曲线，得到较好的叠加效果，同时还求得了WLF方程的两个经验常数C1和C2的数值。
When the mortality curve for the occluded spores was extrapolated to zero-time, a lower apparent starting number, 8.9×102 spores, was obtained.
当封闭孢子死亡率曲线延伸到零时，获得了明显较低的起数，8.9×102个孢子。
Among them, the mechanical structure, the configuration of hardware and software, the specification parameter and the environmental request of LK G90CS15.10.8 thiee-CMM mat are used in this thesis are introduced specially. By using LK G90CS15.10.8 three-CMM, the measuring data of the telephone hand-receiver are acquired. The types and the processing methods of measured data are discussed. Aiming at the error points in points data, a method using Coons surface is put forward. Filtration is commonly used in data smoothing, and median method is adopted in this article. Moreover, the chord method and the curvature method are used here to compress the data and extract the feature points of the telephone hand-receiver measured data. The developing process of surface molding is introduced and the formation algorithm of free-form surfaces is compared By using NURBS algorithm in mis article, the telephone hand-receiver surface is reconstructed. In addition, the surface of the telephone hand-receiver is cut according to the feature curve created by the feature points. The craft of numerical control machining program of complex surface is analyzed and compared. These craft are machining method, cutting dosage, machining remainder, cuter walking mode, the cuter advance, the retreat mode, programming zero, and machiningcoordinate so on. The conclusion that the layer cutting is fitter for rough machining is made. The formula of scallop-height method controlling machining step is deduced. Finally, the cutting and cutter parameter for rough machining and finish machining of complex surface is put forward in the MasterCAM software, according to which the cutter route for rough machining and finish machining are produced respectively.
本论文的主要工作在以下几个方面：分析与比较了目前常用的数字化测量方法及各种三维数字测量设备，着重介绍了本课题所用到的LK G90CS15.10.8型三坐标测量机的机械结构、软硬件配置、规格参数及环境要求，并用该机器对某电话机听筒外壳的三维表面进行扫描测量；阐述了反求工程的测量数据类型及各种数据点的处理方法，提出了利用Coons曲面原理剔除噪声点的方法，采用中值滤波方法对测量数据进行平滑，提出了用弦高差等方法和特征曲率法对电话听筒外壳数据进行了数据点的精简和特征点的提取的方法；论述了曲面造型技术的发展过程，比较了自由曲面和各种生成算法，应用NURBS算法重构了电话听筒的外壳曲面，并利用特征线对生成曲面进行了裁剪；分析比较了复杂曲面数控加工的切削方式、切削用量、走刀方式进退刀方式、编程零点和加工坐标系的确定，推导出用残留刀痕法来控制加工步长的关系式，阐述了在MasterCAM环境下如何选定待加工曲面的切削参数和刀具参数，并根据所选刀具和切削参数分别生成了电话听筒外壳型面的粗加工和精加工过程的刀具路径。
In this research, structured bonds were decomposed into straight bonds and interest rate derivatives. The Zero Curve was calculated by the Bootstrapping method and theoretical prices of interest rate derivatives were derived from the CIR and Monte-Carlo Simulation models. There are 7 examples of structured bond theoretical prices which are compared with market prices to check if theoretical prices match the real market prices or justify the mark-to-market values. Besides, it is also examined that if yearly volatility of interest rates and long-term average interest rates would affect structured bond theoretical prices.
本研究将结构债拆解成债券部分及内含利率衍生性商品，用拔靴法导出零息曲线，用CIR模型及蒙地卡罗法去算出衍生性商品合理价值；搜集七个实际发行之结构债券资料，将其与实际市场所成交之价格做比较，分析其是否能有效反应市场真实价格及未实现损益；此外，分析利率之年波动率与长期平均利率水准对债券价格之影响性及其它影响因子，本研究得到结论如下