查询词典 attenuation factor

The rule of dry sliding friction wear of vermicular iron was analyzed. The influence of working conditions, composition and structure on dry sliding friction characteristics was investigated, 3D morphologies of friction surfaces of vermicular iron and temperature characteristics of friction surface were discussed. The results showed that, compared with nodular and gray irons, vermicular iron has lowest wear rate, highest friction coefficient and lowest friction coefficient attenuation, so it is suitable to be as the material of braking device.

分析了蠕墨铸铁的干滑动摩擦磨损规律，研究了工况条件、成分、组织对蠕墨铸铁干滑动摩擦学特性的影响，探讨了蠕墨铸铁摩擦表面二维形貌与摩擦表面温度特性，结果表明：蠕墨铸铁与球墨铸铁和灰铸铁相比具有最低的磨损率和最高的摩擦系数与最低的摩擦系数衰减量，适合于作为制动器材料。

Taking the harmonic attenuation of the 10KV power distribution network at the 110KV substation in a smeltery as object of study, this dissertation aims to do research on the control strategies and its industrial application technologies for eliminating harmonic in medium and high voltage power network, prepare theory and teclinological knowledge for its universal application in our country, and accumulate experiences for its high-voltage and high-power application.

本文以某冶炼厂110KV变电站10KV馈电网的谐波治理为研究对象，旨在研究中压、中等容量电网的谐波治理控制策略和工程应用技术，为有源电力滤波器在国内的早日普及应用奠定理论和技术基础，为高压、大功率APF的应用投石问路、积累经验。

The theory of light transmission attenuation by snipping optical fiber is used to determine rupture location of composite materials.

3将剪断法引入到空心光纤中来精确测量复合材料断裂的位置

The experimental results show that the EMI level of the integrated motor system has an obvious attenuation after adding snubber and filter.

实验结果证明，增加缓冲电路和滤波器后，一体化电机系统的传导干扰强度明显减弱。

The load transfer and settlement behavior from the simulation results are also analyzed: most of the column load concentrates on the enlarged column cap, and distributes quickly, there is more load attenuation at the variable section. The skin friction of enlarged column cap develops more adequately than underside column. The column settlement concentrates on enlarged column cap, and soil settlement concentrates on a little area below the variable section.

利用三维数值模拟分析了钉形搅拌桩复合地基的荷载传递和变形特性：钉形搅拌桩桩身荷载主要集中在扩大头部分，且衰减较快，变截面处桩身轴力有较大衰减，扩大头桩侧摩阻力较大，下部桩体侧摩阻力较小；桩身变形集中在扩大头，桩间土变形则集中在变截面以下较短范围内。

How to calculate diffracted attenuation accuratly in this case is the important part of sound barrier design.

公路上设置的声屏障的长度一般为有限长，如何准确的计算出此种情况下声屏障的绕射衰减，是声屏障声学设计的关键。

The ventilation and sound attenuation system are introduced to the standard building acoustic sound insulation lab to meet the requirement of sound power level measure of chair outlet′s airflow noise for China National Grand Theater.

为测量国家大剧院座椅下送风风口气流噪声声功率级，对已有的标准建筑隔声实验室的接收室进行改造，引入通风系统，同时进行消声处理。

Attenuation in the volume of the sound.

电力不足造成音量的减弱。

Therefore, this new phenomenon has been investigated carefully and the attenuation of sound wave was analysed.

因此，对海尔姆霍兹共振器的声学整流效应进行了较深入的研究，并且分析了产生这种新的声学整流效应现象的声波衰减机制。

This article is a review of different methods for attenuation correction in SPECT.

综述了常见的SPECT衰减校正方法，包括前、后校正法，本征法和迭代法。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。