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On September 11， the Symposium on Commercial Legal Cooperation was held in Nanning， Guangxi. More than 2，000 business and i......
John Olsson’s book， released in 2008 by the publisher of Continuum， New York， gives an excellent introduction to a relativ......
Turkey has built a multi-ethnic nation on the ruins of an empire. Influenced by splendid Islamic civilizations， Turkey bl......
“Hainan” which literally means “South of the Sea” in Chinese， is a province off the southern coast of China in the So......
设R是环,(y)是有限表示左R-模构成的集表示类且包含R.主要讨论了(y)-纯投射预覆盖的存在性,在此基础上,研究了(y)-纯投射模的相关......
若对任意真理想K,有K+I≠R,则称环R的右理想I为small理想.若任意small右理想是投射的,则称环R为右J-遗传环.引入右J-遗传环作为右......
In view of that existing opening technologies of front cover for rocket launch canister have disadvantages such as causi......
为探索油茶抗旱生理以获得有效保水抗旱覆盖栽培技术,以4年生＂湘林＂油茶林为对象,在三个不同立地（未垦区、红壤区和砂砾区）中以白膜、......
作者在流形方法里采用矩形作为数学覆盖,从另一角度提出了一种不同于有限元法的数值分析方法。该方法结构简单，不需要准备单元和结......
本文介绍了一种大桶自动封盖机组的工作原理、结构特点和电气控制的设计。...
简述了线性聚能装药侵彻钢板的基本理论。通过实验，在改变聚能罩夹角、炸高等条件下对实验数据处理分析，验证了它们与侵彻体的大小形......
针对传统压力容器封头的材料选择,对两种材料3105和6A51进行了单向拉伸实验,获取了两种材料的力学性能参数,在参数比较的基础上建......
若对任意真理想K,有K+I≠R,则称环R的右理想I为small理想.若任意small右理想是投射的,则称环R为右J-遗传环.引入右J-遗传环作为右......
本文介绍了基里隆冲击式水轮机机壳及大、小盖组合加工的特点及质量控制....
Use of Evapotranspiration (ET) Landfill Covers to Reduce Methane Emissions from Municipal Solid Wast
Solid waste landfills need to have final covers to 1) reduce the infiltration of rainfall into the waste mass and 2) red......
Land Use and Land Cover Changes in a Tropical River Basin: A Case from Bharathapuzha River Basin, So
A study of the spatial and temporal changes in land use and land cover (LULC) was conducted using Remote Sensing and GIS......
Efforts to recycle copper from electrical conductors have led to the development of specialized machines, which automati......
Numerical simulations are presented for jet flow inside a launching box. The predictions are based on solutions of the u......
