The errors of the points on the characteristic invariant manifolds for the approximate boundary are used to estimate the credible region. 可信域是电力系统暂态稳定域近似边界的有效范围,位于稳定域边界上的特征不变流形是确定可信域的重要工具。
A New Method for Approximate Computation and Error Estimate in Definite Integral 关于定积分近似计算及误差估计的一种新方法
Approximate estimate density of electrons produced by nuclear explosion of the high-altitude 高空核爆炸产生的电子数密度的近似估计
The approximate result and error estimate totally identical to those with the generalized numerical integral method of single node can be got by means of Gauss-Jacobi quadrature. Gauss-Jacobi求积方法在应用中可得到与广义单节点数值积分公式完全相同的近似结果及误差估计。
In this paper, concerning about the characteristics of random excitation spectrum of flying missile head, An approximate method and error estimate solution of dense modes are presented. 本文针对弹头随机激励的谱特点,给出了随机响应的近似解法及其误差估计,并推导了密集模态下随机响应的解析表达式。
Approximate Estimate of Lateral Deflection for Rigid Frame and Frame-Shear Wall Structure Systems 框架和框架&剪力墙结构的侧移估算
Use of the Approximate estimate About physical problem in middle school 近似估算法在中学物理解题中的应用
Approximate estimate of displacement demand of multiple structures& multiple capacity spectrum method 多维结构地震位移反应的近似估计&多维能力谱法
According to approximate formulas of fundamental frequency, a method was put forward to estimate preliminary the lowest of foundation restraints stiffness, and the relationship of translational restraint and rotational restraint was found. 根据高耸工程结构复合振动基频计算公式,研究了在只测结构基频的情况下初步估计基础约束刚度最小值的方法,以及平动刚度和转动刚度之间的关系。
Present the approximate maximum likelihood estimate of the parameters under multicomponent data with a single-parameter exponential, two-parameter exponential, two-parameter Weibull or two-parameter log-normal distribution. 给出了单参数指数、两参数指数、两参数Weibull及两参数对数正态分布型产品在基于分组型数据下参数的近似极大似然估计。
S An approximate, theoretical analysis in order to estimate the permanent deflection is presented herein for a uniformly loaded, stiffened plates with one stiffener in the longitudinal direction and many stiffeners in the transverse. 本文对受均布载荷,具有一根纵向加筋多根横向加筋的加筋板结构的残余变形导出了近似理论分析方法。
Under the framework of finite volume method, flux victor splitting algorithm, an approximate Riemann solver, is employed to estimate the normal fluxes across the interface of cell. 在有限体积法框架下应用通量向量分裂格式计算各跨单元边界的数值通量,进而求得方程的数值解。
The Approximate Likelihood Estimate of Multicomponent Data Moreover we derive the method to get interval estimation of the shape parameter. 给出了参数的近似极大似然估计(AMLE)和逆矩估计,比较了AMLE、MLE和逆矩估计的精度,另外给出了求形状参数区间估计的方法。
Benzidine staining can be used to get an approximate estimate of "viable" pollen. 花粉的生活力染色测定以联苯胺染色较适宜。
In tolerance analysis, tolerance design or parameters design, it is required to approximate the feasible region of parameters, or to estimate the yield of product. 在容差分析、设计和参数中心设计中,一般需要对参数可行域进行近似,或是知道容差已知情况下的产品的合格率。
An Approximate Estimate of the Working States of a Turbine Under the Little Volume Flow 汽轮机小容积流量变工况近似估算
An Approximate Estimate about a Type of Complex Sum and It's Applies 一类复杂和式的估计及应用
This article introduces the approximate estimate of heat transfer resistance of forced convection air coolers and analyzes the factors affecting overall coefficient of heat transfer. 本文介绍了强制循环空气冷却器(简称冷风机)传热热阻大致估计值,并对影响其传热系数的各种因素进行了分析。
On the Conditions of Principle of Maximum Work The Approximate Likelihood Estimate of Multicomponent Data 关于最大功原理的应用条件分组型数据的产品可靠性的近似极大似然估计
A Kind of Approximate Estimate of the Crack Location in A Girder Construction 关于梁结构中裂缝位置的一种近似估计
By the experiments in bending and hot sizing under different conditions, it is shown that the values of calculation approximate to the experimental results. The formulas obtained may be applied to estimate ( quantitatively) the technological parameters for bending parts in hot sizing. 在不同的热校形条件下,计算值与实验结果相近,所得公式可用于定量估算弯曲件在热校形中的工艺参数。
The engineering construction project first needs to pay attention to the cost issue, the approximate estimate and cost control plays an important role in the project invest for the benefit and income of enterprise. 工程建设项目首先需要去关注的就是成本问题,要对项目投入进行大致的估算和成本控制,这对企业的效益和收益起着至关重要的作用。
With the meta-model technology, an approximate model is built to estimate the short term response of trimaran in head sea. 采用代理模型技术,建立了三体船的迎浪中的耐波性短期响应的预测模型。
The parameters 'approximate values are ensured by the average value of several estimate, and the sample number is ensured by the variance coefficient. 通过多次估计的均值作为参数的近似值,采样的样本数通过方差系数确定。
On the basis of the basic assumptions of pushover theory, the approximate relationship for converting the energy between the MDOF system structure and its equivalent SDOF system is deduced, and an approximate method is suggested to estimate the deformation energy and hysteretic energy of multi-degree-of-freedom system. 基于Pushover理论的基本假定,推导了多自由度体系结构与其等效单自由度体系之间的能量转换关系,建议了一种估计多自由度体系结构变形能及地震耗能的近似方法。
Brouwer fixed points theorem is used to prove the uniqueness of the approximate solution of semi-linear parabolic problems and the error estimate for time in max norm and space in L2 norm is obtained. 处理半线性抛物方程时引用布劳威尔(Brouwer)不动点定理证明了离散解的存在唯一性,并得到了时间最大模、空间L2模的误差估计。
According to the different anticipated damage degree, the network output makes an approximate estimate of the length of structure use. 根据不同的预期破坏等级,网络的输出给出了结构使用寿命的近似估计。
Based on the comparison of drag force and lift force under various configurations, an approximate formula is proposed, which can estimate the total force interference coefficient when the distance between two towers is given. 通过对各测层阻力和升力在各种排列下的干扰系数比较分析,给出了基于塔间距计算风致合力干扰系数的近似公式。