时间

After that, we used these mixed distributions to re-estimate the split population duration model; also used the AIC Value, Likelihood Ratio Test, and t-test to compare the quality of different models, and it showed that the mixed split population duration model is better than the single distribution model.

我们以混合机率分配重新估计区分母体持续时间模型，并且以AIC值、概似比检定、t-检定比较各种不同的区分母体持续时间模型的优劣，结果显示混合机率的区分母体持续时间模型优於单一分配的模型。

There were altogether 15990 cases of reported infectious disease.The time from diagnose to report,from report to verify and from diagnose to verify are 40.4 hours,1.4 hours and 44.9 hours respectively.The time from diagnose to report takes up 89.98% of the whole time.There was no zero or failing report area and the re-report percentage was 0.01%.The incidence of infectious disease was 29.40% higher than the annual average rate of the previous 5 years.

结果2005年全市153家医疗机构全部实现传染病网络直报；报告单位以县级以上医疗机构为主占78.71%，全年共报告法定传染病15990例；传染病诊断到报告、报告到审核、诊断到审核时间分别为40.4小时、1.4小时、44.9小时，诊断到报告时间占诊断到审核时间的89.98%；无零缺报县区；重卡率为0.01%；2005年传染病发病率较前5年平均发病率上升29.40%。

A time-delay reconstruction of a phase space equal to the original system has been made by analyzing of observed time series of current signal and vibratory signal, and the methods of choosing properly the embedding dimension and delay-time for phase space reconstruction have been studied in detail.

本文利用振动信号和电流信号时间序列，采用时间延迟法，重构了系统的等价相空间，并详细研究了嵌入维数及时间延迟的选择对重构相空间的影响，计算了铣削加工典型过程的Lyapunov指数谱，分析了系统的混沌特性；同时采用P-G算法，计算了混沌动力系统的奇异吸引子的分维数，分析了分维数与系统状态的关系，定量地指示出系统的混沌程度，同时也反映出系统的不可预报程度。

commited information rate,round trip time and retransmission timeout,can bias bandwidth assurance.through researching the relation between bandwidth and these factors, this paper proposed a cir,rtt,rto aware marker(crr3cm) based on time sliding window three color marker(tsw3cm),which could achieve proportional fair sharing of excess bandwidth among aggregates and mitigate the impact of cir,rtt,rto for bandwidth assurance.

小 摘 要：往返时间、目标速度以及重传超时等因素导致了带宽分配的不均匀。通过研究带宽与这些因素的关系，在时间滑动窗口三色标记器（tsw3cm）的基础上，提出一种cir、rtt、rto感知的标记器(crr3cm)。该标记器完成了在各汇聚流之间对剩余带宽的公平分配，减少了目标速度、往返时间，以及重传超时因素对带宽分配的影响。

Another important conclusion is that the shape difference between the PMT outputs is the main influence factor of the TOF detector's time resolution, and it is necessary to consider the influence of the shape difference while performing time correction.

通过分析还可以看到，信号的形状差异带来的时间误差对TOF探测器的本征分辨率有着重要的影响。因此，如果要获得更高的时间测量精度，在进行时间修正的时候必须考虑信号形状差异的影响。

Time allowance normally 20% for w ritten papers and 10% for multiple-choice; if more allowance is needed, please state the amount and give

较长的作答时间如获准，笔试可获延长百分之二十的时间，多项选择题则为百分之十；如考生需要更长的作答时间，请列明所

The results indicate that weight factor had significantly effect on gait speed, steps per minute, gait cycle time, the ratio of stance time and swing time, maximal flexion angle of knee joint and the range of motion of elbow joint. Shelf height had significantly effects on hip flexion and elbow ROM. Box size factor had significantly effect on stride length, gait cycle time, the ratio of stance time and swing time, knee joint elbow ROM. For the muscle activity levels with EMG, load weight and shelf height both affected the %MVC significantly. When the subjects carrying a load of 14kg, the muscle activity and the subjective body part discomfort rating are both higher than that of 7kg. The box size had effect on the body part discomfort rating of upper extremity and back. For the kinetic and kinematics analysis, the shelf height around elbow height was better than the other two height levels.

研究结果显示，对步态时间与空间参数而言，重量因子显著影响步速、步频、步态周期时间与站立期摆荡期比值，箱型因子显著影响步长、步态周期时间与站立期摆荡期比值；关节活动度而言，重量显著影响膝关节最大弯曲角度、肘关节屈伸角度范围，高度因子显著影响髋关节前后倾角度、肘关节活动各变项，箱型因子影响膝关节弯曲最大最小值以及肘关节活动各变项，对肌肉活动度而言，重量与高度因子皆显著影响MVC%值，14公斤重者肌肉活动度与主观不舒适程度皆较7公斤者高，箱型因子虽无明显影响肌肉活动度，但是在主观不舒适程度上却明显影响上肢与背部，终点放置高度应设在肘高附近为佳。

A weekend is probably appropriate, but don't fret if you can't find the time – take whatever time you can get, lock yourself up somewhere quiet, and do what you can – remember that you're not writing anything in stone, you're just trying to grab ahold of the things that give your life meaning.

周末可能比较合适，但是，如果周末真的抽不出时间也别上火，利用自己能抽出的任何时间，置身于一个安静的环境中，做力所能及的思考——记住：你不是在做什么板上钉钉的事，而是在努力捕捉能让你的人生有意义的思想，而捕捉到的结果你有一生的时间完善。

By using dynamics analysis software RecurDyn to establish a model for the prototype of a belt conveyor, this essay reaches through simulation research the conclusion that during the initial startup phase, it is necessary to maintain a lag between the speed of the tail pulley and that of the head pulley, mainly because it takes a certain amount of time for the elastic wave to travel through the belt to reach the tail of the conveyor.

应用动力学分析软件RecurDyn建立了带式输送机的样机模型，通过仿真研究，得出在起动初始阶段，尾部滚筒速度要滞后于头部滚筒速度一定时间，这主要是由于弹性波在输送带中进行传播到达尾部需要一定的时间；并且在起动阶段，输送带的张力比稳定运行时变化大，起动时间越长，输送带出现的最大张力越小。

Considering the skin effect and skin depth, a thin wall model and a thick wall model are derived creatively with different frequencies of discharge currents, which are used to study the relation between the spark location and the potential difference for a cuboid electrode.

本文从放电电流为任意函数入手，阐述了电极电位差法的检测原理，首次利用傅立叶级数推导了电位差与放电时间的关系，证明了放电电流为阶跃函数时，电位差与放电时间成指数关系；当放电电流中含有高频振荡时，电位差与放电时间的关系为指数曲线上叠加相移后的高频振荡；根据放电电流频率的不同，考虑到趋肤效应和趋肤深度，首创了薄壁模型和厚壁模型，研究了长方体电极下表面二维放电点位置与电位差的关系。

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。