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71.
The correlation between China stock market and economic growth is always regarded by economic and financial studies. For the time limit of the developing of stock market and the difficulty of data's collection, it is still in studying that the correlation between stock market and economic growth, especially the causation versus regression. By the method of Demirguc - Kunt and Levine,this paper empirically tests the correlation between China's stock market and economic growth on the seasons serial data from 1995 to 2000. The conclusion is that the relationship economic growth between stock market is unilateral. 相似文献
72.
紫穗槐在公路边坡绿化中的栽培技术 总被引:1,自引:0,他引:1
紫穗槐生长快、繁殖力强,适应性广,耐盐碱、耐水湿和耐瘠薄,根系发达,是优良的生物护坡地被植物。本文讲述了紫穗槐公路绿化中的应用方法,介绍了该树种育苗、管理等方面的技术要点。 相似文献
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74.
通过对金融生态主体:政府、金融缉织、非及金融组织的行为倾向进行分析,在心里学与利益制衡范畴解释其行为动机,和这一动态演进过程造成的结果。然后,模拟金融生态主体博弈过程,借助其在社会范围之内的相互联系、相互影响、共同作用,反过来影响和形成了短期社会规则,并影响金融生态的长期构建。 相似文献
75.
A technique of fabrication of air electrode for direct methanol fuel cells (DMFC) is proposed. The investigated air electrode is free of Teflon- containing and with ultra- thin catalyst layer. Catalysts PtRu/C for methanol electroxidation is electrochemically deposited on a Nafion- bonded carbon electrode. A concept, that is, methanol is oxidized at a relatively high potential, is proposed. Such a fabricated DMFC is characterized with a high utilization of noble metals and basically eliminating CO poisoning in operation. 相似文献
76.
The separating characteristic of element in cumulate MSW is a very important base to investigate the synthetically managing technology and estimate the water environment effects in Three Gorge Reservoir (TGR). The experiment to marinate the cumulate MSW under 135 meters for TGR in water is finished, and the same time, the Separating Distributing Coefficient (SDC) and the Separating Velocity Rate (SVR) of each heavy metal in water are presented, too. The experiment results show that the SDC of Cd is the smallest, the Ratio for Water and MSW (RWM) and marinating time play an important role in SDC and SVR, the SDC and SVR change smaller while the RWM get to 400, the separating content of heavy metal can reach 0.75 during three weeks, SVR decreases more with marinate time's increasing, and SVR gets an limit value with smaller RWM. The results can be a base for deeply studying the managing technology and the cumulate MSW under 135 meters for TGR. 相似文献
77.
To be effectively heated in incinerator for MSW is very important for stabilization and completeness combustion, the smaller produce of the PCDD/Fs. At the same time, the transient heat transfer characteristics of the MSW lump decides the stay time of the MSW in incinerator and effects on the operation feature of the combustion equipments. All of these would lead to design the reasonable and clean combustion project, the optimum incinerator and recover energy system. The component, shape, dimension, property, the hardly and inner structure feature of the MSW lump are taken in account, and the effective conduct heat coefficient has been adopted. And then, the physical model is setup with different shape(ball, cylinder, squareness), and the 3-D mathematical model and conduct heat efficient with porous feature for transient heat transfer of MSW lump are presented, at the same time, the simulation tests are gotten in various boundary and the interesting conclusions are gotten: The center stable temperature of the MSW lump is mostly decided by the inner gas temperature of the incinerator and the heated area of the lump. The transient heat transfer characteristics is variously effected by the shape of the MSW lump in incinerator. The transient process becomes longer and the center stable temperature decreases, the volatile can't be easily separated out and the combustion efficiency decreases because of the increasing of the lump feature dimension. 相似文献
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79.
采用热水浸提、醇沉法提取红枣多糖,对红枣多糖提取工艺与一般理化性质进行了研究.选择浸提固液比、温度、时间和浸提次数作为单因素进行梯度实验,确定其条件范围,再通过正交实验L9(33)进一步确定红枣水溶性多糖最佳提取工艺条件.结果表明,最佳提取工艺条件为:固液比1:7,浸提温度80℃,浸提时间2 h,反复浸提2次.理化性质研究结果表明,提取的红枣多糖中含有多肽和AA,为蛋白质复合多糖. 相似文献
80.