查询词典 recurrence time

The time-domain response of the induced currents on a scattering object irradiated by a plane wave with a Gaussian pulse in time is expanded as an associate Hermite series in this paper. Using the isomorphism of the associate Hermite function and its Fourier transform, the frequency-domain information can be obtained similarly to the time-domain expansion. According to the corresponding relation between time-domain analysis and frequency-domain analysis, and using the early-time response and the low-frequency information of the induced currents, the non-known coefficients in the expansion series can be decided. The entire responses of the induced currents on the scattering object in both time and frequency domains can be obtained at one time by simultaneous extrapolation computation using both the early-time response and the low-frequency information of the induced currents.

摘要首先根据散射体在高斯脉冲平面波激励下感应电流的能量几乎全部集中在时间轴和频率轴上的有限范围内，该文将时域响应展开为系数待定的连带Hermite级数的叠加，并根据连带Hermite函数的傅里叶变换的自反性，得到与时域响应形式类似的频域响应；然后利用时域方法和频域方法分别计算散射体上感应电流的早时响应和低频信息；最后经过时域和频域联合外推计算，由早时响应和低频信息确定时域和频域响应的待定系数，从而获得了整个时域和频域的完全响应。

Firstly, This paper processes geometry filtration based on character of orbit's apogee and perigee after orbit model is analyzed and based. Secondly Space Debris is separated into two kinds, coplanar and not coplanar according as location interrelation of target and debris. In Dynamic filtration's processing, considering prediction time limit and orbit perturbation, secular effects which have increaser effect is considered so that some need catching danger time point is appeased, some law about time when target and debris pass intersectant line each other is inferred, when debris and object are in different plane and some similar law also is inferred otherwise. The time list is arithmetical progression. These laws can improve calculation efficiency remarkably; Lastly orbit predict is a course approaching least distance. Danger time point in the last step become beginning time point from which debris and object's position and velocity are calculated by SXP4 Model which is an analytic model.By result, determine that relative movement trend is closer or apart, farther calculate the interval apart from time when predictive least relative distance occurs. Least relative distance and time when least distance occurs is calculated finally. It is a fast approach course adopting varied interval.

本文在分析、建立轨道摄动计算模型的基础上，首先采用基于轨道远、近地点特征对大量编目在册的空间碎片进行初步几何静态筛选，然后根据碎片与目标轨道面的相对位置特点把碎片分为异面与准共面两种情况以进行动态筛选，在筛选过程中考虑到预报时限长度和轨道摄动影响，引入了轨道摄动中具有积累效应的长期项以满足危险时间点的捕捉要求，利用了长期项摄动变化线性的特点导出了碎片与目标异面情况下各自过交线的时间序列成准等差数列的规律性和准共面情况下类似的规律性，从而显著地提高了前期轨道筛选的计算效率；最后对剩余危险碎片和目标飞行器利用SXP4轨道预报模型在前期轨道筛选的基础上以各个危险探测时间点为预报的时间起点，并根据预报计算结果，分析目标和碎片在该时间点的运动趋势是相互远离还是相互接近，推出预计最小相对距离发生时刻相对此刻的时间长度，得到其随时间变化的局部最小相对距离以及危险距离发生的时刻和相对速度，这是一个采用变时间步长、快速逼近最小相对距离的过程。

And indeed there will be time For the yellow smoke that slides along the street,Rubbing its back upon the window-panes;There will be time,there will be time To prepare aface to meet the faces that you meet;There will be time to murder and create,And time for all the works and days of hands That lift and drop aquestion on your plate;Time for you and time for me,And time yet for ahundred indecisions,And for ahundred visions and revisions,Before the taking of atoast and tea.

呵，确实地，总会有时间看黄色的烟沿着街滑行，在窗玻璃上擦着它的背；总会有时间，总会有时间装一副面容去会见你去见的脸；总会有时间去暗杀和创新，总会有时间让举起问题又丢进你盘里的双手完成劳作与度过时日；有的是时间。无论你。无论我，还有的是时间犹豫一百遍，或看到一百种幻景再完全改过，在吃一片烤面包和饮茶以前。

Above stage approximate timetable is (established provisionally humanity is born in 5,000,000 ago east Africa a mysterious place), moves primitively the time: In front of 5,000,000 - 2,000,000 ago, settles down primitively the time: 2,000,000 ago - 500,000 years ago, compete barbarically the time: 500,000 years - in 1500, rank smell of blood exploration time 1500 - in 1840, knowledge explosion time: 1840 - 1945, technical restriction time: 1945 - 2200, belief confused time: A.D. 2200-2400 year, human unified time: After 2400, this is human history several most important times; In this long process, has had between the innumerable inferior humanity's size conflict, until now the humanity only then used the innumerable own similar blood to find the road which the final humanity went home!

以上阶段大致时间表是（暂定人类诞生于500万年前非洲东部一个神奇的地点），原始迁徙时代：500万前－200万年前，原始定居时代：200万年前－50万年前，野蛮竞争时代：50万年－公元1500年，血腥探索时代公元1500年－公元1840年，知识爆炸时代：公元1840年－1945年，科技制约时代：1945年－2200年，信仰迷茫时代：公元2200－2400年，人类统一时代：2400年以后，这就是人类历史几个最重要的时代；在这漫长的过程中，发生过无数次人类之间的大小冲突，直到现在人类才用无数自己同类的鲜血找到了最后人类回家的路！

This paper briefly introduced the progress in time-lapse seismic as shown from the 76th SEG annual meeting. Topics include the repeatability of time-lapse seismic, in which we discussed the effects of shooting and receiving environments on repeatability, the effects of the cable length and its positioning accuracy and stability on repeatability, and the data processing techniques to improve repeatability, new insights into time-lapse seismic, in which we described tube wave time-lapse response, spectral decomposition, and time-lapse VSP monitoring, and problems related to application of time-lapse seismic technology. The comprehensive applications of time-lapse seismic and other geophysical data were demonstrated with the real data from an oilfield. Finally, we summarized the difficulties in using time-lapse seismic and outlooked its future trend.

简要介绍了第76届SEG年会反映的时移地震技术的进展，主要内容有：时移地震的可重复性，讨论了激发、接收环境对可重复性的影响，海上拖缆长度、定位精度及排列稳定性对可重复性的影响，以及通过数据处理技术提高数据的重复性；时移地震技术的新领域，讨论了管波时移地震监测、谱分解技术和时移VSP监测等；简要分析了时移地震技术应用中应该注意的问题，并通过时移地震在某个油田的实际应用，讨论了时移地震技术与其他地球物理手段的综合应用；最后分析了时移地震技术目前存在的问题，展望了其发展趋势。

XXXX shall perform analysis and initiate corrective action to prevent recurrence. Cycle time related to rejected product analysis should be consistent with the determination of root cause, corrective action and monitoring the effectiveness of the implementation.

为防止不合格的再发生，公司必须进行有效的分析，采取必要的纠正措施和过程更改，有关退货产品分析的周期应当与确定其根本原因，纠正措施和监控实施的有效性相一致。

More precisely, culture has been defined as the consistent recurrence of an assemblage limited in time and space

比较确切地说，人们把文化解释为在有限的时间和空间里一个集合物始终连贯的重复出现。

With the numbers studied, no significant relationships were found between recurrence and the severity at presentation, the time of presentation, the number of casts needed to obtain correction, ethnicity, or a family history of clubfoot.

通过研究所得的数据，我们没有发现复发与症状的严重程度、症状的持续时间、需要矫正所做处理的次数、种族以及畸形足的家族史有明显的关联。

With the numbers studied, no significant relationships were found between recurrence and the seerity at presentation, the time of presentation, the number of casts needed to obtain correction, ethnicity, or a family history of clubfoot.

通过研究所得的数据，我们没有发现复发与症状的严重程度、症状的持续时间、需要矫正所做处理的次数、种族以及畸形足的家族史有明显的关联。

Recurrence, defined as the need for any subsequent operatie treatment, was analyzed with respect to the seerity at presentation, the time of presentation, the number of casts needed to obtain the initial correction, any family history of clubfoot, ethnicity, and the compliance with postcorrection abduction bracing.

我们仔细分析了作为需要接受另外手术处理的标志的复发情况，主要包括症状出现的严重情况、症状出现的时间、达到初始矫正疗效的处理的次数、畸形足的家族史、种族倾向以及矫正后的伸展器械使用情况等几个方面。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。