基于时态关系模型的儿童保健系统的设计研究

根据当前时态数据模型的理论,为儿童保健管理信息系统建立了一个可行的时态关系模型,并对系统中的查询做了简单的描述,最后分析了这种建模方法的优缺点.     

葡萄酒月度价格指标的季节ARIMA时间序列分析

以时间序列分析为工具,研究了法国葡萄酒价格月度指标,使用基于周期图的Fisher检验证实该数据指标具有潜在周期,最后发现(1,0,0)×(1,0,0)12模型能较好地拟合数据.在此基础上给出相应的预测.     

HACCP在石油行业野外施工食堂中应用的绩效分析

将HACCP这一世界公认的食品安全控制系统引入野外施工食堂卫生管理当中.方法采用文献检索,事故分析、现场调查和Delphi等研究方法,通过对野外施工食源性疾病危害分析、建立关键控制点,形成野外施工食堂管理HACCP管理规范,并组织实施.结果实施HACCP体系后,从业人员手、餐具、菜墩、抹布的抽查合格率有显著提高,食堂从业人员以及参加施工人员对饮食卫生以及食堂卫生管理知识的掌握显著提高.结论在野外施工食品卫生管理中引入HACCP管理体系,控制食源性疾病取得了良好的绩效.     

Perceptual learning of dot pattern

Dot pattern is a type of pattern defined by specific spatial relationship among some dots. As a compensation for concrete and meaningful visual stimuli, meaningless dot pattern can be used as stimuli in learning tasks. We performed an experiment for exploring the perceptual learning process of dot pattern against random-dot background. Participants were required to learn two types of dot patterns (9-dot and 11-dot). They were assigned to two groups: participants in Group 1 learned 9-dot pattern first and 11-dot pattern later, while those in Group 2 learned 11-dot pattern first and 9-dot pattern later. The results showed that participants could acquire the spatial relationship of dot pattern through perceptual learning in relatively short learning time. In comparison with 9-dot pattern, learning time of 11-dot pattern was slightly longer and its accuracy rate lower, but there was significant positive transfer effect from 11-dot pattern learning to 9-dot learning.     

专业知识在车工实习中的渗透教学

从实习场地、实习教学过程和课后作业等方面对专业知识的渗透教学做了介绍,并通过实例要求学生深刻理解专业知识,熟练掌握车工操作技能,将车工专业知识渗透到实习教学中.     

浅析机械制图教学与创新教育

文章阐述了在机械制图教学中，如何培养学生画图、读图能力与创新能力，以及它们两者间的辩证关系。     

高Tc超导材料Bi_2Sr_2CuO_6和Bi_2Sr_2CaCu_2O_8的晶格振动对称性分析

本文运用群论方法,对高T_c Bi 系超导体中的Bi_2Sr_2CuO_(?)和Bi_2Sr_2CaCu_2O_8的晶格振动模进行了系统的对称性分类.给出了其布里渊区中(?)点,X 点和△线振动模式的对称分解和对称化基.     

波浪演示器的研究与设计

介绍了作者研制的波浪演示器.该演示器应用数字技术模拟水质点的运动,能形象演示海洋XOZ剖面上波浪的形成与传播.文中还讨论了RISC技术和非程序存储式体系结构在设计中的应用.     

A New Discipline of Science-The Study of Open Complex Giant System and Its Methodology

This paper introduces the conception of open complex giant system and the methodology for dealing with the system, with stress on its profound significance in development of science and technology. The authors conclude that the reductionism underlying the exact science is not suitable to open complex giant system, and the only feasible alternative is the meta-synthetic engineering from the qualitative to the quantitative.     

部分线性模型的渐近性

考虑Ｙｉ＝Ｘ＾ｔｉβ＋ｇ（ｔｉ）＋εｉ，１≤ｉ≤，忱里Ｘｉ是一固定设计点列，ｔｉ是独立同分布随机变量并且服从［０，１］上均匀分布。