Considering that the surface defects of cold rolled strips are hard to be recognized by human eyes under high-speed circumstances, an automatic recognition tech
Methods for evaluating the resistance to cathodic disbondment (RCD) of anti-corrosion coatings on buried pipelines were reviewed. It is obvious that these tradi
This paper discusses a model-based approach to validate software requirements in agile development processes by simulation and in particular automated testing.
Stability and transition prediction of hypersonic boundary layer On a blunt cone with small nose bluntness at zero angle of attack was investigated.The nose rad
目的探讨曲安奈德局部注射口腔颌面部血管瘤的疗效。方法回顾性分析采用曲安奈德注射治疗血管瘤的68例病例资料。结果 68例患儿,治愈57例,好转8例,无效3例,治愈率83.8%,其中1
目的:本研究探讨Toll样受体4(toll-like receptor4,TLR4)介导的信号转导通路在脂多糖(lipopolysaccharide,LPS)促进肺腺癌细胞A549增殖过程中的可能机制。方法:LPS刺激肺腺癌
通过BR方法和标准方差椭圆的方法,解析了北京城市居民的空间认知扭曲,着重讨论了系统扭曲和系统扭曲的特点。分析发现:①北京城市空间认知的绝对扭曲结构表现为顺时针向心集聚,呈现出磁石效应,城市中心区明显小于城市郊区的差异可以用报酬假说中的城市中心吸引力较高解释。其中,绘图提示中的天安门发挥着组织北京城市认知空间的核心效能。②北京城市空间的系统扭曲较小,规则的环状路网发挥着城市居民空间认知基准线的作用,
目的 分析小甲状腺癌的CT表现,探讨其CT征象.方法 对40例CT平扫及增强扫描后经手术病理证实的直径在1.0～2.0 cm的小甲状腺癌的CT表现进行回顾性分析.结果 (1)38例为单发癌灶,2