frequency index的例句大全

The mentality, social status, ability to live and work which on behalf of Living status characteristics affected GERD rather than by the age, BMI index, smoking tobacco, frequency of exercise which represented by population characteristics of sociology.

其中，由心态、社交状况、生活和工作能力几个因素所代表的生活状态特征对GERD产生的影响多于由年龄、BMI指数、吸烟情况、运动频率所代表的人口社会学特征。

Phenological observation data of plant communities from 1982 to 1996 at 5 sites and a method for phenological cumulative frequency modeling were used to determine the beginning dates of local phenological seasons and their corresponding threshold values of normalized difference vegetation index ( NDVI) in each year.

利用1982～1996年5个站点的植物群落物候观测数据和物候累积频率拟合法，划分各站逐年的植被物候季节，并确定各季节初日对应的当地归一化差值植被指数（NDVI）阈值。

The paper describes the automatic control system in the production line sintering hollow brick with fine coal ash in AISC House Property Company. By using a frequency conversion governor to control the temperature of the roasting kiln, each performance index of the product is increased greatly.

介绍了鞍钢房产公司粉煤灰制品厂粉煤灰烧结空心砖生产线的自动化控制系统，采用变频调速器对焙烧窑进行温度控制，大大提高了产品的各项性能指标。

The system gets hot words from article according to the hot words dictionary, and then normalizes the properties of the hot words, including length, frequency and index.

该系统首先根据热词词典从文章中获取热词，对热词的长度、频率、热度属性进行归一化处理。

the anharmonic effect of temperature on phonon frequency, line width, vibrational amplitude and structure factor of atoms for the low index surface of ag were studied by molecular dynamics simulation and the analytic embedded atom method.

应用分子动力学，结合分析型嵌入原子模型研究了Ag低指数面的声子频率、声子线宽度、原子振动振幅和层结构因子随温度的变化关系。

the onset frequency of cholinergic urticaria and depression-index tested by sds before and after being treated were compared.

观察其治疗前后发病次数和用SDS测量的抑郁严重度指数的变化。

the high frequency forms of refractive index and negative refractions are discussed.

讨论了折射率的高频形式，并对负折射现象进行了讨论。

Long Memory-Driven Factors of Volatility in Shanghai Complex Index Based on High Frequency Data

基于高频数据的沪指波动长记忆性驱动因素分析

the paper uses flexible fourier form regression to fit the calendar effects, and constructs long memory sv model for shanghai stock index. through this research, it can be discovered that the volatility persistence of high frequency data is very low.

本文在使用弹性傅立叶形式（FFF）回归技术消除日历效应的基础上，针对高频数据的波动长记忆性建立了长记忆SV模型，结果发现高频数据的波动持续性大大降低。

measurement of liquid refractive index with a linear frequency modulation heterodyne method

线性调频外差法测量液体折射率

The linearity of the FMCW signal is an important index to appraise the frequency modulated source. It determines the radar range resolution in the system of radar range.

线性调频连续波（FMCW）信号的线性度是衡量线性调频源质量的一个重要指标，在雷达测距系统中，它决定着雷达的距离分辨率。

All the participants were older than 50 when the study began and all were required to complete an annual questionnaire giving details of exercise frequency, body mass index and disability.

所有参与者在研究开始时年龄都超过50岁，所有人每年都必须完成问卷调查，提供运动频率、身体质量指数（body mass index）和能力丧失的详细资料。

BODE index was significantly related with the's respiratory questionnaire ( SGRQ ) scores and the frequency of visit.

BODE指数 与圣乔治呼吸问卷 ( SGRQ ) 评分和病人就诊次数显著相关.

When the intensity modulation index increases, the optimal frequency modulation index increases.

随着强度调制系数增大, 频率调制系数的最优值也增大.

The bandwidth of non-minimum phase system can't reflect dynamic characteristics. Crossover frequency ω_c is the performance index instead of the bandwidth, and the ω_c must be less than the non-minimum-phase zero a.

非最小相位系统的带宽不能反映系统的动态特性，应该采用穿越频率ωc代替带宽作为性能指标，且ωc应小于非最小相位的零点a。

And after the intraday periodicity factors are filtered through FFF regression, the high frequency absolute return of fund index doesn't have obvious periodicity any longer.

通过FFF方法，将该周期因子进行滤波处理以后，基金指数高频绝对收益不再具有明显周期性。

By FFF regression of Andersen and Bollerslev ( 1997), we analysis the periodicity of Shanghai stock index 5-min high frequency data and the long memory characters in filtered absolute returns.

采用Andersen和Bollerslev（1997）的FFF回归方法，对上证综合指数高频数据中的周期性进行了分析，并分析了剔除周期后的绝对收益的长记忆性。

The main idea is that the frequency entropy information ( FEI) difference of fMRI data between task and control states is specified as brain activation index.

它的主要思想是利用任务状态与非任务状态的频率熵信息（Frequency entropy information，FEI）的差作为判断脑激活的指标。

The results showed that parameters Index of Diversity(ⅰ), Variance of Phenotypic Frequency ( VPF), Variance of Phenotypic Value ( VPV) and Coefficient of Variation ( CV) are more effective on evaluating different methods for core collection selection among 8 studied parameters.

结果表明，在所选8个参数中，多样性指数、表型方差、表型频率方差及变异系数为对比不同核心种质取样方法间优劣的有效参数；