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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。

For these and/or other purposes and motivations, and without any expectation of additional consideration or compensation, the person associating CC0 with a Work (the "Affirmer"), to the extent that he or she is an owner of Copyright and Related Rights in the Work, voluntarily elects to apply CC0 to the Work and publicly distribute the Work under its terms, with knowledge of his or her Copyright and Related Rights in the Work and the meaning and intended legal effect of CC0 on those rights.

为了这些及/或其他目的和动机，且没有任何额外考量或补偿的预期下，以CC0结合本著作之人，在他/她是本著作的著作权及其相关权利的权利人的范围内，且在其了解到他/她对本著作的著作权及其相关权利和意义、及CC0对那些权利将产生法律影响的情形下，自愿选择将CC0适用在本著作上，且公开地依据CC0的条款来散布本著作。

Niu Wenwen: I still should be told to everybody " poineering home " magazine, everybody knows China and whole world are same, in the poineering tide that after economy grows more than 20 years, can lift the 2nd round, one also can be become to do poineering work like China and United States big country, doing poineering work had been the common divisor with each Chinese the biggest estate, everybody feels to should do poineering work, doing poineering work is good, but still do not have in order to do poineering work, the magazine of business of mainstream finance and economics that innovation is main fixed position.

牛文文：我还是要向大家讲一下《创业家》杂志，大家知道中国和全球一样，在经济发展二十多年以后会掀起第二轮的创业潮，中国和美国一样也会成为一个创业大国，创业已经是中国各个阶层最大的公约数，大家觉得都应该创业，创业是好的，但是还没有一本以创业、创新为主要定位的主流财经商业杂志。

Then the article starting from the activity, which relates the person with exterior nature,namely the human society work practice, elaborates the nature which worked as the foundation of humanity labor,and the human could not leave it and are bringing it into line with the nature as the work essential factor of labor process; The realistic nature similarly also cannot leave human as persons work creation, and this is the question of two aspects.The thesis has analyzed the work and natural relations in the agricultural society and in modern industry society ,and obtains the conclusion that the different ecology values can form under the different production method. This article criticizes disassimilation work in the capitalist society not only causes the disassimilation relationship between the human, but also creats the disassimilation which human and nature related, and proposes the communism society not only is the society in which the contradictory exploitation between human and nature is solved, and the contradictory relation between human and nature is also solved.

的结论；其次从人与外部自然相联系起来的是活动，即人类社会劳动实践出发，论述了自然界作为人类劳动的基础，人类须臾离不开它，人是把自然界作为劳动的要素而纳入自己的劳动过程的；现实的自然界作为人的劳动创造同样也离不开人，这一个问题的两个方面，并分析了在农业社会中劳动与自然的关系和近现代工业社会中劳动与自然的关系，得出在不同的生产方式下会形成不同的生态价值观的结论，批判了资本主义社会的异化劳动不仅造成了人与人之间关系的异化，还造成了人与自然之间关系的异化，提出共产主义社会不仅是人与人之间对立矛盾的剥削与被剥削关系真正解决的社会，也是人与自然之间破坏与被破坏的矛盾关系真正解决的社会的论断。

A seed has grown into the aspirations of giant trees, which require hard work; a stream of ambition has brought together the sea, which requires hard work; a goshawk has the dream of the blue sky Fighting, which require hard work ...... due to seed hard and budding, streams because of the intense fighting, goshawks soar due to hard work and life will definitely be a result of hard work and brilliant.

一颗种子有长成参天大树的愿望，这就需要拼搏；一条小溪有汇聚大海的雄心，这就需要拼搏；一只苍鹰有搏击蓝天的梦想，这就需要拼搏……种子因拼搏而萌芽，小溪因拼搏而激越，苍鹰因拼搏而翱翔，人生也定会因拼搏而精彩。

Content abstract: The article from the job category, the investment originated, the operational mechanism three aspects to differentiate and to limit the public welfare and the commercial character two kind of heterogeneity geological work; Has analyzed the geology surveying work reform background, has been clear about the reform guiding principle; Has analyzed under the traditional system the geology surveying work existence malpractice, reviewed the former reform measure; Based on this, the major issue three aspects which from the organization, the operational mechanism and must solve establishes the land resources big investigation the new system, the new mechanism; Finally, the author believed that what the deepened commercial character geology work reform is most essential cultivates the geological minerals Investment company, namely, on the one hand expanded geology investigation investment origin, on the other hand the cultivation geology investigation's subject of investment, and must strive for stock going on the market positively, widely uses the social fund, the reform commercial character geology work operational mechanism.

内容摘要：文章从工作性质、投资来源、运行机制三个方面区分和界定了公益性和商业性两类不同性质的地质工作；分析了地质勘查工作改革的背景，明确了改革的指导思想；分析了传统体制下地质勘查工作存在的弊端，回顾了以往的改革措施；在此基础上，从机构、运行机制和必须解决的重大问题三个方面建立国土资源大调查的新体制、新机制；最后，作者认为，深化商业性地质工作改革最关键的是培育地质矿产投资公司，即，一方面扩大地质勘查的投资来源，另一方面培育地质勘查的投资主体，并要积极争取股份上市，广泛利用社会资金，改革商业性地质工作的运行机制。

The Master of Science degree program in Economics features a curriculum that is flexibl...

在经济学理学硕士学位的课程计划的特点是灵活而全面的方法，在理论和应用课程培训工作。

This module is used for constructing and visualizing 3D models.

该模块是用于建设和可视化的三维模型。