周期率

The analysis of the continuous property of raw silk size Setting the decaying rateλand the quasi-cycle value T in the model of the silk size autocorrelation coefficient, building the time series of a single cocoon reeling silk size with autoregressive model, then by combining k such time series according to different phrase, obtained time series of the raw silk size, and finally count up the silk size deviation of the time series.

利用一理想化的正弦波模型生成一粒缫生丝纤度时间序列，通过调查该模型中波动幅度及波动周期的变化对自相关系数序列衰减率的影响，初步建立起一粒缫生丝纤度自相关系数列衰减率λ与纤度时间序列特征数之间的关系式。从而使我们可以生成具有要求连续性特征的生丝纤度时间序列，为进一步研究生丝纤度连续性特征提供了新的途径。

The principle is using thefast breakover of avalanche transistor drive the electron tube. The full time of 4200Vvoltage is about 20ns. The circuit can normally work under 100kHz frequencies.Design an extra fast Q-switch circuit by series arrangement of avalanche transistor.

本论文主要做了以下几方面工作：1、推导了重复率激光基本参数(脉冲能量、脉冲宽度和峰值功率)与周期的关系，并且分析了重复率激光系统运转的稳定性。2、设计了雪崩管-电子管退压电路，由雪崩管驱动电子管开关，4200V高压退压沿20ns左右，能够在100kHz频率下工作。

The cycling life of Ni 〓 was measured with powder microelectrode by cyclic voltammetry for the first time. Results show that the depth of charge is up to 75%, and the depth of discharge almost reached to 100% when the scanning range is controlled within 0～ 0.6V vs.

对Ni〓粉末微电极的测试表明，当控制三角波扫描范围0～0.6V、扫描速度20mV/s时，每次循环电极的充电率可达到75%，而放电率接近100%，完成一个周期仅需要1分钟，因此极大地缩短了测试时间。

The results show that under crop rotation of wheat and maize in damp soil and brown soil, stalks return to fields integrated with applying potash fertilizer can keep K balance within a cycle and K return rate reaches 109.1%～111.9%, annual wheat stalks return to fields can provide 226.5～261.0 kg/hm2 K, meanwhile the K return rate reaches 95.2%～97.1% for only applying potash fertilizer; under crop rotation of wheat and soy bean in grittiness black earth, only applying potash fertilizer can also keep K balance within a cycle, its K return rate reaches 119.9%, meanwhile the K return rate reaches 142.0% for stalks return to fields integrated with applying potash fertilizer, which result from maize being much more absorption to K than soy bean.

在砂姜黑土区小麦+大豆轮作制度下，即使小麦秸秆不还田，仅施用化学钾肥，亦能维持小麦-大豆轮作周期钾素的平衡。施钾配合秸秆还田处理，钾归还率达142.0%，施钾且秸秆不还田处理钾归还率达119.9%。主要是大豆不象玉米那样带走较多的钾造成的。

Furthermore,the stability behavior and accuracy characteristics of the algorithmare proven by a spectral decomposition method.

在前人工作的基础上，提出了一种新的用于解决结构动力分析问题的时间积分方法——Taylor级数方法；建立了求解线性问题和非线性项可以表示为多元多项式形式的非线性问题的Taylor级数方法的理论，并给出递归求解通式；阐述了该方法的程序实施过程，给出了计算流程图，并在非线性有限元分析平台NFAP中嵌入了Taylor级数方法的计算模块；利用谱分解的方法分析了该方法的稳定性和精度特性，以封闭的解析形式给出了描述积分法特性的周期延长率和振幅衰减率的表达式；通过对该方法的理论分析和特性研究，阐述了该方法的可行性和高效性。

The approximate solution to FPK equation isobtained. The joint probability density function and stationary mean out-crossing rateare investigated for ship nonlinear rolling subjected to additive white noise excitation.Melnikov function and phase space flux are applied to analyze highly nonlinear rolland capsizing of ships in the random seas. The variation of phase space flux withrespect to the characteristic wave period, significant wave height and damping ofships is studied.

求FPK方程近似解，研究白噪声激励下船舶非线性横摇运动的联合概率密度函数及稳定期望穿阈率，应用Melnikov函数和相空间转移率研究船舶在随机波浪中的强非线性横摇运动及其倾覆问题，考虑波浪特征周期、有义波高及船舶阻尼特性的变化规律，推导了船舶在随机横浪中的极限波高的表达式。

Methods To apply MMT colourmetric method and flow cytometry to test Rhizoma Bolbostematis, Products in different density to Tcb8113 cell proliferation-inhibitory rate and the changes and apoptosis rate of different phases in cell cycle and obserce its changes of subcellar structures through electromicroscope.

应用MTT比色法和流式细胞仪检测不同浓度的土贝母制剂对Tcas113细胞增殖抑制率及细胞周期各相的变化和凋亡率，并通过电子显微镜观察其亚细胞结构改变。

In this paper, the jump transition characteristic of sunspot cycle length from 522BC upward were analyzed.

讨论了2500多年来太阳黑子周期长度的跃变特征，发现在百年尺度上SCL基本在平均值附近变化，而其变率则存在明显的跃变现象，当SCL的变率增大时，气候随之发生冷跃变，反之，则发生暖跃变。

Examples PCOS patient applies two armor biguanide 500mg/time, 3/days, continual 4 months, compared with treatment around body weight index, menstrual cycle, reproduction hormone level, ovulation rate, rate of pregnancy, blood sugar and insulin level change.

二甲双胍治疗PCOS患者80例，80例PCOS患者应用二甲双胍500mg/次，3次/天，连续4个月，比较治疗前后体重指数、月经周期、生殖激素水平、排卵率、妊娠率、血糖和胰岛素水平的变化。

Results According to the score criteria of IBS curve patterns,when IBS curve score were 1 or 2,the magnitude of VIB nd CVIB% were between controlled groups and infracted groups,and comparison to the two there were significant difference,it is ischemic myocardium or viable myocardium.The segments of IBS curve score≤2 were 43.6%（17/39）,there weren's statistical difference between its IBS% and onesof infracted group.

评为1分及2分的心肌节段即IBS曲线形态评分≤2分者，其IBS周期变异幅度、IBS周期变异率%界于对照组和梗死组之间，且与该二者比较差异有显著性，考虑其为缺血心肌即存活心肌，占43.6%（17/39），但其IBS%与梗死组之间比较无统计学差异。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。