Study and validation of the relationship between international roughness index and power spectral density;
国际平整度指数与路面功率谱密度相关关系研究及验证
Study on Simulation Method of Road Roughness by International Roughness Index
由国际平整度指数模拟路面不平度方法研究
In order to analyze the relationship between power spectral density(PSD) method and international roughness index(IRI) method in evaluating road roughness, AR model was adopted to simulate road roughness condition for satisfying PSD, and Newmark β method was employed to calculate IRI values, the relationship formula between PSD method and IRI method was determined by using least square method.
为了分析路面平整度功率谱法(PSD)和国际平整度指数法(IRI)之间的关系,采用AR模型模拟满足路面平整度功率谱的路面不平整状态,采用Newmarkβ法计算国际平整度指数,采用最小二乘法得到了PSD法与IRI法之间的关系方程式。
It can give the road profiling and IRI at a speed from 0 to 80 km/h,the change of speed have little influence on the result.
该系统可计算出被测路面的纵断面曲线,由此计算国际平整度指数(IR I),检测速度可从0~80 km/h任意变化,检测结果不受检测速度影响,非常适合我国道路交通复杂情况下的平整度检测。
Study on Simulation Method of Road Roughness by International Roughness Index
由国际平整度指数模拟路面不平度方法研究
The indicators of our products(including Water resistance,flatness, tensile strength,glossiness) reach the world advanced level.
抗水性、平整度、抗张强度、光泽度等各项指标均达到国际先进水平。
adjustment index of the weighted average of post adjustment
工作地点调整数加权平均数的调整指数
Observation of General Informatization Indicators and Factor Indicators of 30 Countries and Regions in 2001
2001年世界30个国家和地区信息化水平总指数和分类指数发展速度
Average Post Adjustment index
平均服务地点差价调整数指数
Measurement of Indicators Relating to R&D Expenditures in China and International Comparison;
我国R&D资本投入相关指标的测度及与国际水平的比较
Co-integration Analysis of Chinese Stock Price Index and Price Index;
中国股价指数与物价指数的协整分析
International System of Areas Protected for Peace
国际和平保护区制度
Use standard indicators of corruption levels based on Transparency International's Index of Countries.
使用建立在国际透明度国家指数基础上的测量腐败程度的标准指示器。
Preditermination and Application of Linear Exponential Smoothing Model;
一次指数平滑模型预测法及实际应用
We expect the CPI to go down gradually in the coming months.
中银国际认为第四季度以后居民消费价格指数将逐步下降。
Changes of Chian' s Inter-provincial Differences in the Level of Public Services:Measure of the Gini Coefficient
中国省际公共服务水平差异的变化:运用基尼系数的测度方法
Morgan Stanley Capital International China Index [MSCI China Index]
摩根士丹利资本国际中国指数
A comparison of the mainland Chinese and international Air Pollution Index system
我国与国际空气污染指数系统的比较
International Definition and Measurement of Levels of Living: An Interim Guide
国际生活水平定义与测量：暂用指南
Experimentation Analysis of Relation Between Impact Factor and Bridge Floor Roughness
桥面平整度与冲击系数相关实验分析
The exponent P is a function of wind speed, ground roughness, stability, etc.
指数P是风速、地面不平度、稳定度等的函数。
The Strategy of Peaceful Rise and China s Participation in International Systems;
“和平”崛起战略与中国的国际制度参与
