排序方式： 共有6条查询结果，搜索用时 125 毫秒
1
1.
通过虹祺花苑复合式土钉墙工程实例,阐述饱和粉土层中的土钉墙支护计算原理及现场施工要点,并总结了技术要点及注意事项以资推广。 相似文献
2.
Cheol-Hee Kim Lim-Seok Chang Jeong-Soo Kim Fan Meng Mizuo Kajino Hiromasa Ueda Yuanhang Zhang Hye-Young Son Youjiang He Jun Xu Keiichi Sato Chang-Keun Song Soo-Jin Ban Tatsuya Sakurai Zhiwei Han Lei Duan Suk-Jo Lee Shang-Gyoo Shim Young Sunwoo Tae-Young Lee 《Asia-Pacific Journal of Atmospheric Sciences》2011,47(4):399-411
Three comprehensive acid deposition models were used to simulate the sulfur concentrations over northeast Asia over the period covering entire year of 2002, and discussed the aggregated uncertainties and discrepancies of the three models. The participating models are from the countries participating in the project of Longrange Transboundary Air Pollutants in Northeast Asia (LTP): China, Japan and Korea. The Eulerian Model-3/CMAQ (by China), Regional Air Quality Model (RAQM, by Japan), and Comprehensive Acid Deposition Model (CADM, by Korea) were employed by each country with common emissions data established by the administrative agencies of China, Japan and Korea. The episodic simulation results between 1 to 15, March 2002 are also presented, during which aircraft measurements were carried out over the Yellow sea. The episodic results show both a wide short-term variability in simulations against measurements, and maximum concentration differences of 3～5 times among the three models, requiring that further attention before confidence among the three models can be claimed for short-term simulations. However, the year-long cumulative simulations showed almost the same general features, with lower aggregated uncertainties between the three models, produced by the long term integration over northeast Asia. 相似文献
3.
4.
The presence of embedded convection in stratiform clouds strongly affects ice microphysical properties and precipitation formation. In situ aircraft measurements, including upward and downward spirals and horizontal penetrations, were performed within both embedded convective cells and stratiform regions of a mixedphase stratiform cloud system on 22 May 2017. Supercooled liquid water measurements, particle size distributions, and particle habits in different cloud regions were discussed with the intent of characterizing the riming process and determining how particle size distributions vary from convective to stratiform regions. Significant amounts of supercooled liquid water, with maxima up to 0.6 g m~(-3), were observed between -3℃ and-6℃ in the embedded convective cells while the peak liquid water content was generally less than 0.1 g m~(-3) in the stratiform regions.There are two distinct differences in particle size distributions between convective and stratiform regions.One difference is the significant shift toward larger particles from upper -15℃ to lower -10℃ in the convective region, with the maximum particle dimensions increasing from less than 6000 μm to over 1 cm. The particles larger than 1 cm at -10℃ are composed of dendrites and their aggregates. The other difference is the large concentrations of small particles(25–205 μm) at temperatures between -3℃ and-5℃ in the convective region, where rimed ice particles and needles coexist. Needle regions are observed from three of the five spirals, but only the cloud conditions within the convective region fit into the Hallett-Mossop criteria. 相似文献
5.
6.
Zou Hui Liu Dedi Guo Shenglian Xiong Lihua Liu Pan Yin Jiabo Zeng Yujie Zhang Jiayu Shen Youjiang 《Stochastic Environmental Research and Risk Assessment (SERRA)》2020,34(1):103-119
Stochastic Environmental Research and Risk Assessment - Water resources allocation is facing great challenge, since hydrological series have shown non-stationarity with high uncertainty due to... 相似文献
1