查询词典 load factor

However, more and more studiespresent that the local pressure fluctuations in the separated and reattached region of bluff body are found tobe non-Gaussian. The Gaussian assumption will underestimate the wind load of cladding and cause thecladding to unsafety. It is a general way to estimate peak pressure by a fixed peak factor.

然而，有越来越多的研究表明，钝体绕流的分离和流动再附着区域的风压呈现出强烈的非高斯分布的特性，按照高斯分布进行峰值风压的估计将可能低估作用于围护结构上的风荷载而造成结构的不安全性。

A feasible analysis of the higher scoring load capacity can be obtained from choosing the adequate correction factor, according to their opti- mization curves with increasing tool angle.

比较了所试各类齿轮的动力性能，从而为按优化曲线选择变位系数的齿轮或同时增大刀具角的齿轮具有更高的胶合承载能力提供了较充分的依据和可行性分析。

On the basis of time-temperature superposition,the principle,shift formula and factor of load superposition were represented,which could accelerate creep test of geosynthetics and predict its long term behaviour.

土工合成材料蠕变性能的研究目前正逐步受到重视，但目前对土工合成材料蠕变性能的研究都只限于长期的室内蠕变试验研究和蠕变模型研究。

Keywords:computational wind engineering; equilibrium ABL; SST k-ω model; large span roof; shape factor of wind load

关键词］计算风工程；平衡大气边界层；SST k-ω；模型；大跨屋盖结构；风载体型系数

It is important to reduce the span of the hard roof to avoid its impact load on supports. However, at longwall top coal caving face, the periodical weight of roof is a main factor that crushes the top coal, which is beneficial to the top coal recovery. How to use the roof pressure safely is of crucial importance in top coal caving. Based on field monitoring, theoretical analysis of strata movement, the numerical model of compound structure of hard roof stepped cantilever and the top coal cantilever beam is built, and the parameters of the model are also determined. The elasto-plastic finite element method is used to analyze the effect of hard coal fracture under the abutment pressure of hard roof, and the cracking coefficient is defined according to the stress state of the element.

通过对岩层移动的现场观测，建立了&两硬&条件综放采场台阶悬臂—悬臂梁组合的煤岩组合结构力学模型，并以此煤岩结构为基础，建立&两硬&条件综放采场顶煤压裂的有限元数值模型，分析了坚硬顶板不同来压步距对坚硬顶煤的压裂效应，并确定了合理的支架阻力，从而对坚硬顶板进行有效的控制，消除坚硬项板对采场的冲击隐患，同时保证采场矿压对坚硬顶煤的有效压裂，达到提高顶煤回收率之目的，由此形成了坚硬顶煤、坚硬顶板条件下综放采场围岩控制的基本理论和方法。

The proposed analysis yields quantitatively the ultimate load and the safety factor in arch dam connected with the stability condition of abutment foundation.

本文所提出的分析计算将结合岩体稳定条件定量算出拱坝的极限荷载和安全系数。

The four indexes sensory temperature,temperature-humidity index,cold-humidity index,amenity index in biology meteorology are introduced to compositive analyses the effect of meteorologic factor to power load.

引入了生物气象学中的实感温度、温湿指数、寒湿指数、舒适度指数4个指标来综合衡量气象因素对电力负荷的影响。

This paper researches the design method of shrinkage tooth with equal tip clearance of hypoid bevel gear pair with half generating method, which will increase the contact ratio,engagement factor,load capacity and stability of the transmission.

研究了用半展成法加工的收缩齿等顶隙准双曲面锥齿轮副的设计方法，以求提高齿轮重迭系数、承载能力和传动平稳性

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。