【Abstract】Southwestern China contains rich hydropower resources and a high concentration of impoverished people. Nujia......

With the structure of two air gaps and two rotors,the electromagnetic continuously variable transmission(EMCVT) is a nov......

Objective To investigate the characteristic of heart rate variability(HRV)changes in patients with posteriorcirculation ......

The relationship between major quality tools such as quality function development (QFD), failure mode and effects analys......

A new type continuous variable transmission device, a hydro-mechanical continuously variable transmission (HMCVT) for ag......

As the housing system reform has deepened continuously and the level of the resident income increases,the housing become......

A scraper conveyor is a kind of heavy machinery which can continuously transport goods and widely used in mines,ports an......

Today's world is undergoing a great change that has never happened in a hundred years.The international environment ......

英语短语动词的语义纷繁复杂,语义之间的关系亦多种多样.有的为动宾关系,有的为动状关系,有的含比较意义,有的意义表原因,有的表达......

为了研究千米级铁路悬索桥上无缝线路纵向力分布规律,建立了考虑主缆、吊杆、钢桁梁、正交异形板,及相邻桥跨结构的(84+84+1092+84......

自动指纹分类不仅能够为大型指纹库提供重要的索引机制,而且还能够优化系统运行,提高指纹匹配的效率和性能;由于指纹较大的类内差......

为了解决公路日常养护施工设备在野外作业时的用电需求,如夜间抢修照明、坑槽切除修补、标牌和护栏的维修等,设计了一款车载液压发......

利用超音速火焰喷涂（HVOF）技术在连铸结晶器（CrZrCu合金）表面喷涂CoCrMoSi合金涂层，通过金相显微镜、扫描电镜考察涂层的微观组织，并利用......

本文给出了二元函数在整个平面一致连续的一个充分条件，纠正了文[1]和文[2]中的一个错误，指出了二元函数在无穷远处极限概念的不一致......

统筹城乡经济发展和建设社会主义新农村首要面临的问题是为农村、农民提供基本而有保障的公共物品。农村公共物品不仅存在供给总量......

介绍了洗衣机U型夹箍自动滚弯成形新工艺，采用钢带经校平，成U型截面，弯圆形，切断，压连接端自动连续成形。不但生产效率高，产品质量稳定，而......

研究了一种包含左手材料的介电常数在一个单元内从-ε0到ε0连续变化的一维光子晶体，通过理论分析和数值计算，得到了该结构的色散关......

目的研究可调节缝线对持续高眼压状态下青光眼术后控制眼压的临床疗效。方法选择江苏省仪征市人民医院自2010年3月~2014年1月收治......

N4-acetylcytidine(N4A) is an organic compound and a metabolite of transferrable ribonucleic acid.Its molecular formula i......