中晚期食管癌手术方式的探讨—附96例报告

报道１９８９－１９９１年，共手术治疗中晚期食管癌９６例，肿瘤切除率９１．６％，术后并发症发生率１１．４％，无手术死亡。笔者认为胸段食管癌采用经左胸切除，胃经食管床重建食管术有许多优点，值得采用。而残胃食管癌或估计肿瘤切除困难的病人，可采用胸骨后结肠代食管术，再经右胸切除食管。对本组食管癌国际ＴＮＭ分期与淋巴结转移的关系也作了分析探讨。     

自适应滑模跟踪控制研究及其应用

对模型跟踪自适应控制进行了新的探讨，提出了自适应滑模跟踪控制策略．对模型跟踪误差建立了滑动模型，实现了滑动模态控制，保证模型跟踪误差快速趋于零．该控制策略用于机械加工过程的仿真结果表明，其对机械加工过程参数变化的扰动有较好的适应性和较强的鲁棒性．     

贵州常绿杜鹃亚属区系地理的数值研究

贵州迄今有常绿杜鹃亚属(Subg.Hymenanthus)植物27种、3亚种、2变种。本文以相似系数公式分析了贵州常绿杜鹃亚属植物与邻近地区的地理亲缘关系;应用等级聚合分类中可变技术研究了它们的区系地理成分及其主要分布区,结合古地理变迁、自然地理特点、区系组成以及某些重要替代树种的分布,讨论了“中国—喜马拉雅森林植物亚区”与“中国—日本森林植物亚区”在贵州境内的分界线。     

后进地区经济发展战略研究

提出将落后地区划分为后进地区、贫困地区、极贫困地区等三种不同类型的观点;通过对渭南地区的研究,探讨了后进地区“工业增长极建设与农村发展建设有机结合”的经济发展战略。     

高职自动控制原理课程改革与实践

本文首先介绍了国内外自动控制原理课程的现状,研究了高职自动控制原理课程存在的问题,提出了以能力本位为核心的高职教学课程体系和教学方式,并在高职院校进行了初步的实践。最后对该课程的改革实践效果进行了阐述。     

Energetic particle radiations measured by particle detector on board CBERS-1 satellite

Using the data measured by energetic particle detector on board CBERS-01 and -02 for the past five years, statistics was made to show the general features of MeV electrons and protons along a solar synchronous orbit at an altitude of 780 km. This height is in the bottom region of the Earth's radiation belts. Detectors are inside the satellite cabinet and such continuous monitoring of particle radiation environment inside a satellite has seldom conducted so far. After a proper and careful treatment, it is indicated that the data inside satellite are well correlated with the radiation environment outside. Be-sides the agreement of the general distribution characteristics of energetic electrons and protons with similar observations from other satellites, attention is particularly paid to the disturbed conditions. Variations of particle fluxes are closely related with solar proton events, in general, electron fluxes of outer belt are well correlated with Dst index after three days' delay while the electron injection occurred almost at the same day during great magnetic storms. It is confirmed that both energetic electrons and protons appear in the Polar Cap region only after the solar proton events.     

中古早期联合式复合词的构成及其特点

随文释义的注疏是与经典正文相对应的一个语言场面,它具备时代性和口语性的特点,因而也最能反映当时语言的真实面貌.《左传》的单音词,晋代杜预常常用复合词来注释.把《左传》的单音词与杜注相对应的联合武复合词加以对照,以探索由上古单音词到中古复合词发展的轨迹,拟考察中古早期联合式复合词的构成特点和发展状况,为汉语构词法发展史积累一点资料.     

几种思维方法在物理学习中的应用

通过举例说明几种思维方法在物理学习中的应用。     

Advances in Arabidopsis research in China from 2006 to 2007

Arabidopsis thaliana, a model plant species, has a number of advantages over other plant species as an experimental organism due to many of its genetic and genomic features. The Chinese Arabidopsis community has made significant contributions to plant biology research in recent years[1,2]. In 2006, studies of plant biology in China received more attention than ever before, especially those pertaining to Arabidopsis research. Here we briefly summarize recent advances in Arabidopsis re-search in China.