摘要：Microsatellite DNA technique was used to detect the genetic variation between five hatchery populations of the Pacific oyster from China and two wild populations from Japan. Seven microsatellite loci screened in this study showed high polymorphism in both hatchery and wild populations, as observed in an average number of allele per locus （19.1-29.9） and average expected heterozygosity （0.916-0.958）. No significant difference in average allelic richness or expected heterozygosity was observed between Chinese hatchery populations and Japanese wild populations. Pairwise Fsr values and heterogeneity tests of allele frequencies showed significant genetic differentiation between all populations. According to the neighbor-joining tree constructed on the basis of the Dc distance, the seven populations fell into three groups showing a clear division between hatchery and wild populations, and between the northern and southern hatchery populations. Assignment tests correctry assigned high percentages （97%-100%） of individuals to their original populations and demonstrated the feasibility of microsatellite analysis for discrimination between populations. The information obtained in this study is useful for designing suitable management guidelines and selective breeding programs for the Pacific oyster in China.

摘要：wild Bootstrap是一种适用于回归方程中存在异方差时的再取样方法。本文通过线性回归Huber估计量的模拟研究,比较了不同的bootstrap方法,并验证了wild bootstrap方法在有限样本下的有效性。通过运用一种简单有限样本统计量对wild bootstrap加以修正,对于存在异方差性且基于固定设计的回归模型而言,wild bootstrap成为首选的重复抽样法。

摘要：以Pro/E wild Fire软件为基础,详细地论述了零件库的建立方法,分析了每种方法的优缺点,提出了适用范围,使零件库的建立更加简单化,从而有效的提高了实体建模速度,缩短了设计周期。

摘要：Town-and-city concentration area is confronted with ecological degeneration due to the expansion of urbanization,and enriching urban bio-diversity is conducive to the improvement of ecological function of urban green *** paper has studied how to increase urban bio-diversity by making use of urban green lands for protection and construction of wild animals' habitats,and proposed the significance and theoretical idea for protection and construction of wild animals' *** taking ecological green lands design in Qinglongchang of Chengdu City for example,it has analyzed the current situation of animals' diversity;proposed to plan corridor,construct biological channel and provide multiporous habitats;listed plants' selection and collocation mode;and finally illustrated how to set artificial facilities for attraction of *** hopes to provide a reference for the design of ecological green lands in cities advocating the harmonious development of living environment and natural environment.

摘要：纪录片《wild China》综合运用了理性和感性两种语言,既流畅隽永又生动自然,具有较高的艺术感染力。

摘要：以跨文化制作和传播为视角,探讨了《美丽中国》整个制作环节中存在的跨文化现象,分析了跨国合作制片过程中因文化身份差异而带来的文化对撞问题,以及面对这些问题跨国合作主体双方所应持有的态度和所采取的解决方法。并对该片的BBC英文版本和CCTV中文版本进行了对比分析,从视听层面研究了影像作品在跨文化传播过程中对细节的各种处理方法,揭示出CCTV通过对作品的微调而与BBC形成了一种微型对话关系。而这恰好可视为中英文化主体间的一个深层对话,显现出跨国合作纪录片在文化交流上的重要意义。

摘要："工商管理模拟"具有综合性、实践性等特点,有利于培养学生团队协作精神和学以致用的能力,然而,传统教学模式无法使学生得到保证良好学习效果的必要条件,如何进行教学创新以改变现状就成了一个亟待解决的问题。本文阐述了"工商管理模拟"教学现状,分析了存在的主要问题,研究了Wiki在"工商管理模拟"教学中的作用,对Wiki环境下"工商管理模拟"教学进行设计并提出了一些应注意的问题。研究结果表明:Wiki作为辅助手段,其特有的优势能够有效弥补传统教学模式的不足。