Based on carbonization,corrosion expansion and crack width,the analysis methods of time-dependent reliability and relative statistic parameters were proposed.
在荷载、环境和材料内部因素的作用下,钢筋混凝土结构的性能逐步劣化,结构的实际可靠度不断降低,基于混凝土碳化、混凝土保护层锈胀开裂和锈胀裂缝宽度3种不同的耐久性极限准则,提出了在役结构动态可靠度分析方法并对相关统计参数的取值进行了探讨。
According to the principle and character of genetic algorithm,which asks for best in this arithmetic,the method adopting genetic algorithm to estimate statistic parameter of Pearson Ⅲ distribution was put forward.
方法依据遗传算法全局寻优的原理与特点,提出采用遗传算法对皮尔逊-Ⅲ(P-Ⅲ)型分布的统计参数进行估计的方法。
Adopting the statistic parameter in《The reliabiliby of port engineering structures》, this article calculate and analyze the reliability index of difference reinforced concrete members.
利用《港口工程结构可靠度》(GB51058 92)中提供的统计参数,通过计算实例说明结构可靠度的分析方法,并计算分析不同受力构件的可靠度指标。
In the analysis, we clearly point out that the statistical tolerance means the tolerance of statistical parameters, and the statistical tolerance system will be the development direction after the geometric tolerance theory.
系统分析了现行几何公差标准及其体系的缺点 ,提出统计公差的特征及其合理性 ,明确提出“统计公差即统计参数的公差” ,指出“统计公差是几何公差的发展方向” ,并以表面粗糙度统计评定的发展说明统计公差的优越性。
The optimized search method is used to calculate the statistical parameters of these series,in which sample sizes of 20,50 and 100 are selected.
采用资源生成的方法，在指定总体为Γ分布的情况下，模拟多个水文系列，用优选搜索法，计算系列长度为２０、５０和１００时的统计参数。
In this paper, the history of the hydrologic frequency analysis and research is reviewed, the commonly encountered problems, such as the type of frequency curves, the empirical frequency formulas, estimation of statistical parameters and application of special data, are described.
对水文频率分析研究进行了回顾与评述， 分别对常遇的几个问题——频率曲线线型、经验频率公式、统计参数估计和特殊水文资料应用等作了叙述， 总结了我国近５０ 年来在频率分析上的主要成就以及对分析思路、研究探索、实际应用和实践经验等作出剖析。
New technique on isogram chart of rainstormstatistics parameter in Qinghai Province;
青海省暴雨统计参数等值线图编制技术
The error predicted by statistics parameters and pro- cedure parameters are compared with the windage in practical survey.
针对贯通测量中采用规程参数进行误差预计不能完全反映实际测量误差的问题,提出了采用测量实际统计参数对贯通测量误差进行预计,并在实际工程中将用统计参数和规程参数预计的误差与实际测量偏差值进行对比,得出:在贯通测量误差预计中,采用实际统计参数比用规程参数进行贯通测量误差预计更能提高测量误差预计精度。
But when n is more, it is difficult to calculate the maximum distribution and its statistics parameter.
但是当n很大时求最大值分布及其统计参数很繁,本文用渐近分布理论得知多个独立正态分布随机变量的最大值分布为极值Ⅰ型分布,再推导具体表达式,从而很容易求出其统计参数。
This paper introduces the difference between the nonparametic statistics and parameter statistics in hydrology calculation, and expounds the application of the former in hydrology frequency analysis, water resources forecast and simulation.
介绍了水文计算中非参数统计方法与参数统计方法的不同,并阐述非参数统计方法在水文频率分析、水文水资源预报及水文资源模拟中的应用。
Probability model and statistical parameters of resistance for existing structure;
服役结构抗力的概率模型及其统计参数
Expounded Mallat algorithm of wavelet transform, at the same time, it probed into analysis and evaluation system of fusion image of remote sensing, which proposed the method that three kinds of statistical parameters are used for fusion image quality evaluation.
阐述了小波变换的Mallat算法,同时对遥感影像融合的分析与评价进行了深入的探讨,提出了综合利用三类统计参数来进行评价的方法。
The probability distribution function and the corresponding statistical parameters of sharing ratio of internal pressure in bedrock for embedded penstocks in terms of design reference per.
根据已搜集到的国内外部分水电站地下埋管围岩内压分担率的实测数据,利用统计数学中的K-S法和A-D法等检验方法进行了统计分析和分布假设检验,求得了水电站地下埋管围岩内压分担率在设计基准期内的概率分布函数及其统计参数,证明其最优概率分布函数可用对数正态分布来拟合。
Statistical Inversion of Acoustical and Statistical Parameters of Seafloor from Shallow Water Reverberation;
浅海混响统计反演海底声参数和界面统计参数研究
(statistics) no involving an estimation of the parameters of a statistic.
（统计学）与统计值的参数估算无关的。
The Statistical Analysis of "Citizen Participation in the Budget" of the Condition of Non-parametric Test;
非参数检验的“公民参与预算”统计分析
nonparametric statistical test
非参数检验 非母数统计考验
Design of Soil Parameter Monitoring System of Digital Agriculture Platform;
数字农业平台土壤参数监测系统设计
A system of collecting multiparameter data about wattmeter based on LabVIEW
基于LabVIEW的电力计多参数数据采集系统
Reconfigurable FIR Filter System Design
可配置参数FIR数字滤波系统设计
A Research of Parameter Estimation of State Estimation in Power System;
电力系统状态估计中的参数估计研究
The Parameter Estimation of the Statistics Models Based on the MCMC Method;
基于MCMC方法的统计模型的参数估计
Estimation of Parameters and Statistical Properties in the Error-in-Variable Models;
度量误差模型参数估计及其统计性质
Development of Butterfly Valve Parametric Design System and Optimal Design
蝶阀参数化设计系统开发及优化设计
Parameters Design of Hydraulic Straight-line Exciting System
液压直线激振系统的参数设计与计算
This is enough to perform non-parametric statistical tests.
这就足以进行非参数统计检验。
The Design of Multi-Parameter Synthetically Measuring Robot System for Artillery′s Bore
炮膛多参数综合测量机器人系统设计
The Parameter-estimation of Two Elastic Chambers Model of Human Cardiovascular System
心血管系统双弹性腔模型的参数估计
Empirical Bayes Statistical Inference for Parameter of Distribution;
分布参数的经验Bayes统计推断
Research on Parametric Design System of Novel Screw for Extruder;
新型挤出螺杆参数化设计系统的研究
The Research and Development of Parameterized Design System of the CM Super Micro Mill;
CM超细粉碎机参数化设计系统的研制