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The creation of stem cell banks is another important step to support the advance of research in this field.
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Make significant contributions to the sustainable advance of research in this field.
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Although this aspect may represent a temporary hurdle, we believe that it must not prevent the advance of research in this area.
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| | In this paper, we have made general introduction and review on research of multipath effect in the electronic system of signal transmission process. The main discussion deals with the following topics: the physics background of multipath delay phenomenon; The mnltipath effect has an effect on operation properties of electronic system; the method and obtainable advance of research multipath effect etc. Moreover,in terms of above discussion,the research... | | 本文对电子系统信号传输过程中有关多径效应的研究情况作一概括的介绍和评述。侧重从多径延迟现象的物理背景、多径效应对电子系统工作性能的影响、研究多径效应的方法和取得的进展等几个方面进行讨论。在此基础上,扼要地分析了泛系方法论与多径效应研究的若干联系,并探讨泛系方法论研究对多径效应研究工作潜在的指导和促进作用。 | | 文摘来源 | | The advance of research on phase separation and its mechanism(including thermodynamics and kinetics) is reviewed. Some research on phase separation in China isalso reported.The three proposed methods for predicting phase separation regions are:(1)mathematical curve fitting method,(2)thermodynamic method,(3) a method based on modern continuous phase transition theory. By using three methods great number of immiscibility boundary curves of silicate,borate binary systems hav... | | 本文着重介绍了玻璃分相研究工作的历史进展和玻璃分相在中国的研究概况。在评论玻璃分相机理的热力学、动力学的基础上,着重提出了作者预测分相区的三种方法。即:(1)数学拟合法;(2)热力学方法;(3)现代连续相变方法。利用这些方法计算了一大批硼酸盐、硅酸盐二元系统的不互溶曲线。 | | 文摘来源 | | This paper represents the recent advance of research on the high-resolution chrono-climatostratigraphy, the evolutional pattern of the Quaternary climate and the spatial structure of climate at specific cold and warm periods of the Quaternary in the Loess Plateau. | | 本文扼要介绍最近几年来在中国黄土高分辨率气候地层、第四纪古气候演化型式以及冷期和暖期中黄土高原古气候空间格局研究方面的一些新进展。根据土壤地层学与地球化学、地球物理学手段的结合,2.5 Ma来的中国黄土系列可划分出37个大的气候旋回,其中含74个气候阶段,这74个气候阶段又可细分为110个次级阶段。第四纪气候振荡的幅度受气候周期长短所控制。从冷期到暖期的气候转换具有突变性,从暖期到冷期的气候转换具有渐变性。冷期堆积的黄土与暖期形成的土壤在性状上都有地带性分布的特征。 | | 文摘来源 | |   | | << 更多相关文摘 |
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