目的了解零陵区城乡居民肿瘤防治相关知识、态度、行为和健康教育需求情况。方法采取整群随机抽样的方法,对样本单位35岁以上的常住居民进行问卷调查,应用EP16.0建立数据库,
蛙皮素与肿瘤增殖关系密切,在多种人胰腺癌细胞系及其移植瘤中均发现其高表达,但在人胰腺肿瘤组织中的表达仍存在争议,因此人们对其表达及作用机制进行了广泛研究,并探讨了蛙
When using MQL as a cooling technique, many parameters have to be adjusted. The Taguchi method was used in this study to investigate the cutting characteristics
Cubic boron nitride (Cbn) is a kind of artificial (synthetic) crystal. Transverse electro-optic modulation in a minute Cbn sample was carried out. Basing on the
A method for the calculation of the sensitivity factors of the rolling process has been obtained by differentiating the roll force model based on support vector
开发了用于科氏振动陀螺的在线自测试方法.该方法通过一种用于电容传感器的微机械陀螺数字读出电路实现.在微机械结构上施加一些额外的信号,传感器的最终性能(
An integrated method for concurrency control in parallel real-time databases has becn proposed in this paper. The nested transaction model has been investigated
Skin sensitive difference of human body sections under clothing is the theoretic foundation of thermal insulation clothing design. By a new psychological & phys
用MS Xα方法研究了Nin(n =2～ 6 )团簇的电子结构和原子磁矩 .与晶体镍相比 ,有些团簇磁性明显增强 ,有些磁性明显减弱 ,有些则呈现出亚铁磁性 .分析发现 ,团簇的对称性对磁矩有着非常重要的影响 .对称性相似的团簇 ,磁矩大小也相仿 .仅有极少数原子的小团簇磁矩与团簇尺寸不存在递减或递增的规律性 .其原因是对于小团簇 ,增减一个原子可以引起对称性的根本变化 .超细微粒表面层由对称性较