Based on the method of rotated principal component (RPC) analysis and wavelet transforms, the win-ter precipitation from 36 stations over China for the period 1
近几年我们国外项目所在的国家和地区,经济技术大部分都很落后,基础图件1∶50000地形图没有完善,再大一些比例尺1∶5000、1∶10000地形图几乎为零,地勘项目又急需编制几十、几百平方公里地形图进行图上设计,按常规仪器地形图测量方法是根本不可能的,为此本文,笔者利用卫星坐标高程数据和卫星影像校正融合的方法编制地形影像图,不但地形图可以单独使用,而且地形影像图可综合利用,图上作业都是以精确坐标定
使用RegCM2区域气候模式,嵌套澳大利亚CSIRO R21 L9全球海气耦合模式,进行了温室效应(二氧化碳加倍)对东亚(主要是中国区域)极端气候事件影响的数值试验.控制试验的结果表明,
BACKGROUND In recent years,increasing evidence of second neoplasms associated with gastrointestinal stromal tumors(GIST)has been found.Numerous case reports,mos
BACKGROUND Wnt1-inducible signaling pathway protein 1(WISP1)is upregulated in several types of human cancer,and has been implicated in cancer progression.Howeve
BACKGROUND Portal hypertension(PHT)is primarily caused by an increase in resistance to portal outflow and secondarily by an increase in splanchnic blood flow.Va
从含非绝热项的准地转运动方程组出发,分析了青藏高原大尺度热力作用下非绝热Rossby波的一些性质.从理论上证明当背景西风气流为正压时,冬季高原冷却作用有利于Rossby波的经
传统的精液常规检查中往往把生精细胞误认为白细胞,该文通过51例生育和不育组精液常规对比分析,纠正了生精细胞误认为白细胞的错误。51例中均检出生精细胞,而只有8例检出白细胞,生育组
BACKGROUND Immunosuppression has undoubtedly raised the overall positive outcomes in the post-operative management of solid organ transplantation. However, long