《爆破工程》课程改革

针对教学内容较多而学时较少的《爆破工程》课程,采用了多媒体教学方式,对教材内容的侧重点进行了删减和增补,同时采用启发式教学可培养学生分析问题的能力等一系列教学改革,并加强了实验环节,提高了教学质量。     

论唐前赋得诗的特点、地位和影响

摘要： 赋得诗是随着南朝文人即席分题赋诗的出现而产生的诗歌新类别。在命题上,唐前赋得诗一般采用“赋……得……诗”、“……赋得……诗”、“赋得……诗”的形式。在题材上,唐前赋得诗主要指向咏物、咏诗、咏史、赠别。在形式上,唐前赋得诗主要是五言四韵,至于七言、杂言的赋得诗,四韵以外的赋得诗,都很少;绝大多数押平声韵,押仄声韵和换韵的情况比较少见;分韵赋诗和题中用韵的情况也已经出现。唐前赋得诗创作推动了南朝永明体、宫体和以陈后主为首的三个诗歌创作群体的形成,对南朝诗歌不断追求“新变”产生了影响,推动了齐梁以后诗歌题材的大发展,也使齐梁诗歌诗体短小、精雕细刻、讲究四声、语言绮艳的特点进一步固化。   　
　
　　
     

Cost-cautious designs for confirmatory bioassay

Confirmatory bioassay experiments take place in late stages of the drug discovery process when a small number of compounds have to be compared with respect to their properties. As the cost of the observations may differ considerably, the design problem is well specified by the cost of compound used rather than by the number of observations. We show that cost-efficient designs can be constructed using useful properties of the minimum support designs. These designs are particularly suited for studies where the parameters of the model to be estimated are known with high accuracy prior to the experiment, although they prove to be robust against typical inaccuracies of these values. When the parameters of the model can only be specified with ranges of values or by a probability distribution, we use a Bayesian criterion of optimality to construct the required designs. Typically, the number of their support points depends on the prior knowledge for the model parameters. In all cases we recommend identifying a set of designs with good statistical properties but different potential costs to choose from.     

汉语话题的辖域与层级

汉语话语中不仅存在单话题 ,还存在多话题。话题的辖域有大有小 ,可根据辖域的大小将话题分为语篇话题、语链话题和语句话题三类。根据话题的性质和功能 ,多话题可分为情景话题、主旨话题、论元话题三类 ,多话题的排序一般遵循情景———主旨———论元话题的序次。话语生成的组合顺序多为逆向组合。     

微型燃气轮机燃烧室实验系统与测量方法

针对分布式发电系统中微型燃气轮机燃烧室燃烧的技术特点，设计建造了微型燃气轮机燃烧室实验系统，着重介绍了该实验系统的流程、结构、测量方法及研究内容．该实验系统设计合理、功能完善、测量方法准确可靠，可用于常压和增压条件(0～0．3MP3)下微型燃气轮机燃烧室性能及相关燃烧技术的研究．     

Failures of the reduction principle in an Ellsberg-type problem

Segal (1987) suggested that the Ellsberg paradox might be explained in terms of individuals mentally representing the decision problem as a two-stage lottery which they evaluated according to a non-expected utility model. This paper describes an experiment involving an explicitly two-stage analogue to an Ellsberg-type problem. This design substantially reduces the frequency of classic Ellsberg behaviour, but reveals other systematic violations of conventional theory. The paper discusses the particular patterns of choice and raises the more general problem of modelling individual decisions when the reduction principle does not hold.     

过氧化氢催化分解实验的改进

改进了过氧化氢催化分解的实验装置 ,从而改善了数据处理方法 ,无需测量反应完全后放出氧气的体积V∞ .     

新开"数控机床位置精度测试与补偿"实验的探索

为了满足教学改革对实验教学提出的新要求,自行设计了"数控技术"课程中"数控机床位置精度测试与补偿"新实验,已应用于教学实践,并取得良好的教学效果.文章讨论了新开实验的设计思路、教学内容、教学效果、改进方向等.     

构建机械设计基础实验教学新体系

对传统机械设计基础实验教学模式与手段进行了反思,探讨了构建机械设计基础实验教学的新体系。     

被子植物分类检索表实验教学改革研究

系统描述了被子植物分类检索表实验教学改革的实践活动。在分类检索表的编制原理诠释、实验教学改革方法、检索过程的流程式记录方面作了新的探索。实践表明:被子植物分类检索表的教学采用实践教学模式,将收到事半功倍的良好教学效果。