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您的检索式：作者名="Zhang Xianwan"
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| 1 | Thermodynamic Effects on Particle Movement:Wind Tunnel Simulation Results显示文摘Sand/dust storms are some of the main hazards in arid and semi-arid zones. These storms also influence global environmental changes. By field observations, empirical statistics, and numerical simulations, pioneer researchers on these natural events have concluded the existence of a positive relationship between thermodynamic effects and sand/dust storms. Thermodynamic effects induce an unsteady stratified atmosphere to influence the process of these storms. However, studies on the relationship of thermodynamic effects with particles (i.e., sand and dust) are limited. In this article, wind tunnel with heating was used to simulate the quantitative relationship between thermodynamic effects and particle movement on different surfaces. Compared with the cold state, the threshold wind velocity of particles is found to be significantly decrease under the hot state. The largest decrease percentage exceedes 9% on fine and coarse sand surfaces. The wind velocity also has a three-power function in the sand transport rate under the hot state with increased sand transport. Thermodynamic effects are stronger on loose surfaces and fine particles, but weaker on compacted surfaces and coarse particles. | NIU Qinghe QU Jianjun ZHANG Kecun LIU Xianwan | 2012 | Chinese Geographical Science2012，22，2： | 2 |
| 2 | Conservation management effects on soil erosion reduction in the Sichuan Basin, China显示文摘 | Liu Gangcai Lindstrom M J Zhang Xianwan | 2001 | Journal of Soil and Water Conservation2001，56，2： | 1 |
| 3 | The solubilities of poorly soluble electrolytes in complex solutions显示文摘 | ZHANG Yingjie Cao Zhanmin Yang Xianwan | 1988 | Hydrometallurgy1988，50，： | 1 |
| 4 | On the influence of sand-wind on atmospheric environment显示文摘The authors seek, through tests on simulated sand samples in a wind tunnel and analysis of minerals combination and trace elements, to discover the environmental implications of flying-up, falling-down and concentration variation as a function of natural wind speed and direction, distance of movement, range and extent of influence on the atmospheric environment, of micro-granular components on the ground surface in the Keerqin desert area in northwest Liaoning Province of China. | Zhang Qide, Wang Yuxi, Yu Shuqing, Song Liming, Liu Xianwan, Li Changzhi and Lin Hejie1 Liaoning Provincial Research Institute of Environment Protection China2 Institute of Desert and Frosen Soil Science, Acadenua Sinica, Lanzhou.3 Ihstute of Gedogy Science, Academia Sinica, Lanzhou. | 1989 | Journal of Environmental Sciences1989，1，1： | 1 |
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