查询词典 attenuation factor

Attenuation vs repression The trp operon is regulated by both repression(which determines whether transcription will occur or not)and attenuation.Other operons for amino acid biosynthetic pathways may also be regulated by both repression and attenuation or only by attenuation.

弱化作用与阻遏作用的比较 trp操纵子同时受到弱化作用和阻碍作用的调控，其他氨基酸生物合成途径的操纵子也可能受弱化作用和阻碍作用的调控，或者仅有弱化作用调控。

Farther apply FactorAnalysis, principle of pick-up is latent root＞1, using Varemax and Equamax to rotatefactor. We get 10 factors, combined with medical knowledge, based above result,clinical manifestation of sub-health status can split into 7 types, such as typesociety(Factor 6), type psychology(Factor 1), type fatigue(Factor 3,Factor 4,Factor 9),type discomfort of eye and mouth(Factor 7), type abnormity of stool and urine(Factor2), type menoxenia(Factor 5) and type consticution(Factor 8 and Fator 10). Thisprovide basis for classification, prevention and cure of sub-health status.

进一步应用因子分析，以特征根大于1为公因子提取原则，应用最大方差正交旋转法进行因子旋转，共得到十个共因子，结合医学知识，根据上述结果亚健康状态的临床表现可分为社会型(公因子6)、心理型(公因子1)、疲劳型公因子3、公因子4(来源：23ABC论文网www.abclunwen.com和公因子9、眼口不适型(公因子7)、二便异常型(公因子2)、月经不调型(公因子5)以及体质型(公因子8和公因子10)等七个亚型。

Researched influence of frequency on characteristic of electromagnetic wave transmission in tunnels, and analyzed characteristic of electromagnetic wave transmission in circular, arches and curved tunnels by method of metal wave guide, and gives approximate formulas of attenuation rate. Main conclusions we obtain are as follows: in circular,rches tunnels, if frequency is higher, attenuation rate is smaller, it is beneficial for EM waves to transmit, in curved tunnel, higher frequency, more attenuation rate ...

研究了频率对井下电磁波传输特性的影响，采用金属波导法分析了圆形、拱形及弯曲隧道中电磁波的传输特性并给出衰减率近似公式，得出主要结论：在圆形和拱形隧道中，频率越高，衰减率越小，越有利于电磁波的传播；在弯曲隧道中，频率越高，衰减率越大，不利于电磁波的传播；通过特性曲线与井下实验数据相比较得出在900MHz左右为井下无线通信系统传输信号最佳频段。

Results revealed that the large side insulation of the stator bar in slot is available for ultrasonic pulse-echo testing; Coupling transducer on the surface of a practical stator bar could minimize the influence on the measurements of velocity, contributing no destructivity of the ultrasonic testing for stator insulation; The simultaneity of same velocity and higher attenuation can be used to detect insulation delamination from conductors; Compared with the wide sides of the bars in slot, the short sides of the bars near the exit from slot and the end bars had a same velocity and a higher attenuation; The velocity might be exactly measured on the shot sides of the bars near the exit from slot and the end bars, while the attenuation might not, which were examined though filed tests; V min decreased greatly and V av decreased slightly with the service time of the bars.

在实验室对线棒多种结构处的主绝缘和不同运行年数(未老化、16、18 和23年)线棒的主绝缘进行了低频超声反射法检测试验，并进行了现场试验，发现(参见 Hao et al， IEEE DEI， to be published)，槽部线棒的宽面绝缘不受换位绝缘的影响，比窄面绝缘更适合超声测量；线棒表面平滑的半导体层减小了耦合剂对超声测量的影响，实现了无损性；波速不变而声衰减减小可以检测线棒出现绝缘与导体脱壳缺陷；出槽口和端部线棒的窄面绝缘与槽部线棒的宽面绝缘相比，声衰减大而波速一致；现场试验验证了波速不受绝缘结构和现场测试条件的影响，而声衰减受以上因素影响很大(参见 Hao et al，中国电机工程学报， Vol.23 No.4)； V min 随运行年数明显减小， V av 随运行年数慢慢越小。

Based on the establishment of the intensity attenuation relation of Jiangxi Province and its adjacent areas by analyzing isoseismic line data, we develop the attenuation relations for horizontal peak ground acceleration and response spectrum of the areas by selecting the west of USA as the reference region and using the transforming method. In comparison with the seismic motion attenuation relation of eastern China, the result better represents the features of historic and modern earthquake damage distribution in the area, and may contribute to seismic safety evaluation, earthquake damage prediction and fast loss assessment.

在利用江西省及邻区的地震烈度等震线资料建立该区地震烈度衰减关系的基础上，以美国西部为参考地区，转换得到了相应的水平向基岩峰值加速度与反应谱衰减关系，并与中国东部地区的地震动参数衰减关系进行了对比，其结果更加符合该区历史和近代地震震害分布的地域性特点，可进一步应用于地震安全性评价、震害预测、损失快速评估等研究。

Based on the establishment of the intensity attenuation relation of Jiangxi Province and its adjacent areas by analyzing isoseismic line data,we develop the attenuation relations for horizontal peak ground acceleration and response spectrum of the areas by selecting the west of USA as the reference region and using the transforming method.In comparison with the seismic motion attenuation relation of eastern China,the result better represents the features of historic and modern earthquake damage distribution

在利用江西省及邻区的地震烈度等震线资料建立该区地震烈度衰减关系的基础上，以美国西部为参考地区，转换得到了相应的水平向基岩峰值加速度与反应谱衰减关系，并与中国东部地区的地震动参数衰减关系进行了对比，其结果更加符合该区历史和近代地震震害分布的地域性特点，可进一步应用于地震安全性评价、震害预测、损失快速评估等研究

The method of the present invention may also include providing a die that creates a low internal pressure drop, cooling the attenuation medium upon exit of the die and/or providing an attenuation medium with a high relative solvent-vapor content in the attenuation region.

本发明的方法也可包括提供一个建立低内部压降的模具，在拉细介质离开所述模具后对其进行冷却和/或提供在拉细区域具有高相对溶剂蒸汽含量的拉细介质。

The paper to analyzes because experiments "factor contribution rate".to conduct the research;Discovered "the pure factor from difference square" for the negative value is the statistic stochastic value result;When the factor function is not extremely remarkable,the factor contribution rate also is a negative value;By now should merge not the remarkable factor square the random error square,recomputation ANOVA as well as factor technical progress factor.

论文对析因试验中用于分析因子作用的"因子贡献率"进行研究；发现"纯因子离差平方和"为负值其实是统计量随机取值的必然结果；尤其当因子作用极不显著时，计算的因子贡献率常常也是负值；这时应该将不显著的因子平方和并入随机误差平方和，重新进行ANOVA以及计算因子贡献率。

In this paper, a self-edited anxiety inf luencing-factor inventory was used as its' reliability and validity was confirmed. Adopting factor analysis, this paper discussed the influence factors to the sports anxiety of the football players and reveal the reason of the their different anxiety level, the result showers that training factor 、 self factor、 psychology factor 、 others- influence factor and education factor have a significance influence to the anxiety level of the players, and which will benefit to the players selection and sport anxiety control.

本文采用个人自编焦虑影响因素问卷，在确保其良好的信度与效度基础上，采用因子分析法，对足球运动员运动焦虑的影响因素进行了探讨，揭示了不同被试运动焦虑水平差异的内部原因，研究表明：训练因子、自我因子、心理因子、他人影响因子以及教育因子对研究对象的焦虑水平起着非常显著的影响，这在一定程度上为运动选材和运动焦虑水平的控制提供了理论参考。

Generally speaking, the high group velocity and low attenuation factor and high Q〓 in the same area, but relatively low group velocity and high attenuation factor and low Q〓 in the same area in China is the general distribution.

在不同周期，面波衰减系数或品质因子在整个中国大陆区域分布是不均匀的；总体表现为高群速度分布的区域呈现高Q〓和低衰减系数、低群速度分布的区域呈现低Q〓和高衰减系数分布的特点。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&