The spread of Yuan Dynasty’s calligraphy in Koryo Dynasty : Taking Zhao Mengfu and Xue’an as examples

The era of the Yuan Dynasty of China just corresponds to the later period of koryo dynasty. During this period, the exchanges between the two countries were relatively stable. Therefore, the spread of Yuan Dynasty’s calligraphy in the Korean Peninsula is mainly reflected in the calligraphy world in the later period of koryo dynasty. Among them, the calligraphers represented by Zhongxuan King and Li Qixian opened up a situation for the smooth popularization of the calligraphy style of the Yuan Dynasty in the Koryo Dynasty. Later, Gongmin King laid a solid foundation for the spread of Yuan calligraphy in the Koryo Dynasty.陶徳民教授古稀記念

The Retro Thought in the Theory of Seal Cutting since Song and Yuan Dynasties and It\u27s Spreading in Japan : Focusing on the Xuegubian

The retro thought of the theories of seal cutting since Song and Yuan Dynasties of China is one of the most important theoretical origins. This theoretical origin refers to the theoretical system of the theory of seal cutting in ancient China and the practice of the creation of seal cutting. This paper will expound two points which are the producing and spreading of the retro thought, and the key point is the spreading in Edo Japan. First, the retro thought was produced in Yuan dynasty, and became much more maturer during the Qing dynasty. Then,focusing on the trade of Nagasaki in Edo period, exploring the spreading of the Xuegubian in Japan. Last, contrasting the versions between the Japan block-printed edition and the version of Xuejintaoyuan.中谷伸生教授古稀記念

超临界Marangoni-Bénard对流波数分析

本文通过理论和实验研究底部均匀加热大宽厚比Marangoni-Benard对流的波数选择问题。通过红外热像仪观测液层在缓慢线性升温和降温过程中的表面温度场。并对红外图像进行2D-Fourier变换,分析温度场的频谱特征。发现真实涡胞的频谱是由基波和对应的谐波叠加而成。基波是由3个互成120°的波叠加,而高次谐波部分主要由两部分组成:与基波方向一致2次谐波波和与基波方向成30°的次谐波。实验发现随着温差的上升,谐波与基波的强度比经历了一个先增加后减小的过程,存在一个极大值点。同时发现涡胞尺寸经历了一个先减小后增大的过程,也就是基波的波数先增加后减小,并且也存在一个极大值点。实验表明这两个极值点是..

微重力下板式贮箱内推进剂流动的研究

在卫星平台中,经常用液体推进剂贮箱为其提供能源保障,与其它类型的液体推进剂贮箱相比,第二代表面张力型推进剂贮箱,即板式贮箱,以其显著的性能优势和高可靠的特点成为了很多大型卫星推进剂贮箱的主流。板式贮箱的关键和核心部分是安装和布置在贮箱壳体内部的推进剂管理装置(PMD)。PMD功能的可靠实现,对保证卫星推进系统在空间正常工作具有直接的,决定性的作用和影响。为此,本文将对其进行研究,用三维气液平衡界面计算程序surface evolver对无重力下的板式贮箱中的液体形态进行模拟分析,为以后板式贮箱的设计提供参考

Simultaneous Laser-Induced Fluorescence And Contactless-Conductivity Detection For Microfluidic Chip

A combined detection system involving simultaneous LIF and contactless-conductometric measurements at the same place of the microfluidic chip was described. The LIF measurement was designed according to the confocal principle and a moveable contactless-conductivity detector was used in (CD)-D-4. Both measurements were mutually independent and advantageous in analyses of mixtures. Various experimental parameters affecting the response were examined and optimized. The performances were demonstrated by simultaneous detection of Rhodamine B. And the results showed that the combined detection system could be used sensitively and reliably. (C) 2008 Yong Yu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved

小型感性耦合射频等离子体中和器的实验研究

为了研究适用于百瓦级电推力器的离子束流中和技术,基于电子鞘层模型、射频等离子体最优放电技术和通过插入探针实现快速点火的方法,设计了一套小型感性耦合射频等离子体中和器(RF plasma neutralizer,RPN).实验研究了RPN中和器的稳定工作条件和电子引出特性,实现了RPN中和器稳定工作和电子有效引出.实验结果表明:电子引出特性主要取决于发射孔附近阳极斑的形成与否,而阳极斑的形成又主要受结构设计、工质流量和偏置电压等运行条件的影响;通过对RPN运行条件的优化试验,获得了55~150mA可调电子束流范围和较高的工质利用系数(3.9~10.5),满足离子束流中和需求;另外,实验中还观察到了电子束流随工质流量或偏置电压的迟滞现象

Experimental Investigations on Interaction of Two Drops by Thermocapillary-Buoyancy Migration

Experiments were performed, in a terrestrial environment, to study the migration and interaction of two drops with different diameters in matrix liquid under temperature gradient field. Pure soybean oil and silicon oil were used as matrix liquid and the drop liquid, respectively. The information on the motions of two drops was recorded by CCD camera system in the experiments to analyze the trajectories and velocities of the drops. Our experiments showed that, upon two drops approaching each other, the influence of the larger drop on the motion of the smaller one became significant. Meanwhile the smaller drop had a little influence on the larger one all the time. The oscillation of migration velocities of both drops was observed as they were approaching. For a short period the smaller drop even moved backward when it became side by side with the larger one during the migration. Although our experimental results on the behavior of two drops are basically consistent with the theoretical predictions, there are also apparent differences. 2006 Elsevier Ltd. All rights reserved. Keywords: Thermocapillary migration; Drop; Interaction; Oscillation 1. Introduction A bubble or drop will move when placed in another fluid with temperature gradient. This motion happens as a consequence of the variation of interfacial tension with temperature. Such a phenomenon is already known as Marangoni migration problem. With the development of microgravity science, bubble dynamics and droplet dynamics became a hot point problem of research because this investigation is very important for basic research as well as for applications in reduced gravity environment, such as space material science, chemical engineering and so on. Young et al. first investigated the thermocapillary migration o