roughness coefficient

Joint Roughness Coefficient ( JRC) is an equivalent index which describes mechanical effect of rock joint surface angle of ascent.

JRC是反映爬坡角力学效应的岩体结构面表面形态等效描述指标。

The experiment results show that the threshold velocity is affected by the ratio of roughness coefficient of ice cover and bed.

试验表明：冰盖下泥沙起动流速与冰盖及槽底糙率的相对比值有关。

This model mainly depends on the parameters below: surface albedo, surface roughness coefficient, moisture available coefficient of soil, thermal capacity and thermal diffusion coefficient of terrain, cloudage.

模式主要依赖于以下参数和物理量：地面反照率、下垫面粗糙度、土壤的可含水量、下垫面的热容量和热扩散系数、云量等参数。

After that, we gave a mathematical formula and its computer program for JRC modified straight edge which contain scale effect of joint roughness coefficient.

考虑JRC的尺寸效应，推导JRC修正直边法的数学表达式，编译计算机常用程序。

Ascertaining of rock joint roughness coefficient accurately effects rock stabilization greatly.

岩石节理粗糙度系数JRC的正确确定对岩体结构面抗剪强度的计算有很大影响。

The results show that a higher precipitated calcium carbonate ( PCC) ratio to clay in the mixed pigments resulted in a higher static and dynamic friction coefficient and calendering decreased the surface roughness and the friction coefficient of the coated paper;

结果表明：在沉淀碳酸钙和瓷土混合颜料配方中，沉淀碳酸钙含量较高时涂布纸表面的静态和动态摩擦系数较高，而采用压光可降低涂层表面粗糙度和摩擦系数；

Basing on the experimental results of longitudinal adhensive coefficient of road surface, this paper discusses the relations between braking process, longitudinal adhensive coefficient of road surface and sliding rate, vehicle speed, road surface roughness, etc.

本文利用路面纵向附着系数的测量结果，对汽车制动过程、路面纵向附着系数与滑移率、车速、路面不平度的关系进行了探讨。

Study on the Roughness Coefficient of Slope Face in the Granitic Region of Three-Gorge of the Yangtze River

长江三峡花岗岩区坡面糙率系数研究

Roughness coefficient of non-submerged reed The Calculation of Reflection Coefficient on Submerged Slope and Permeable Works

湿地非淹没芦苇水流阻力的试验研究潜波及透浪式建筑物反射系数的计算

Based on the field surface shallow flow experiments, the roughness coefficient value ( n) on different land have been quantitatively demonstrated by changed Manning Formula in this pa-per.

在野外小区径流实验基础上，通过经转换的曼宁公式，对不同坡地地表的糙率系数n值进行了定量研究。

Friction coefficient is determined by substance, roughness concentration and lubricant ( may exist ) of the sliding surfaces.

摩擦系数由滑动面的物质 、 粗糙度和 ( 可能存在的 ) 润滑剂所决定.

A study on the anisotropy of joint roughness coefficient in rock mass

岩体断裂粗糙度系数的各向异性研究

The effect of surface phase constitution, surface roughness, sliding speed, press force and anti-rust oil on friction coefficient of galvannealed IF sheet steel has been tested and researched.

采用平板滑动实验研究了表面相组成、表面粗糙度、拉速、压力及涂油品种等因素对汽车用合金化热镀锌IF钢表面摩擦系数的影响。

The surface roughness, drag coefficient and wind index are calculated with the data obtained from tower-based sensors located about 800 m from the coast.

采用离岸800m高100m的气象铁塔观测所得的资料，利用粗糙度、阻力系数及幂指数公式，计算了辽东湾东海岸地区的粗糙度、阻力系数及风指数。