美国中考试题的特点及其对中国的启示

本文通过分析美国的中考试题,阐述了试题中的几个特点并提出了对中国中考改革的几点启示.     

Flow Field of Circulating Fluidized Bed Reactor with Venturi Inlet Configuration

Different two-equation k-ε models were used to simulate the gas flow field generated by a new type of circulating fluidized bed reactor with venturi gas distributor. The numerical results were compared with the experimental data. It has been shown that the simulation results from the standard k-ε model have the best match with the experimental data. Based on this model, the gas flow field in the venturi diffuser and riser was analyzed by the concept of velocity nonuniformity and dead zone percentage. Both the nonuniformity of gas velocity and the dead zone percentage reach the maximum at the venturi outlet due to the effect of the vortex. At the same time, it provides a good platform for the further optimization of the inlet configuration of circulating fluidized bed reactor.     

The Folk High School: A Contemporary Educational Pathway for Swedish Parliamentarians?

The aim of this study is to explore the contemporary role of the folk high school as an educational pathway for Swedish MPs. Statistics from the folk high school register at Statistics Sweden are analysed. In summary, there are still quite a large number of former folk high school participants in the Swedish parliament (27%, 2014). The MPs’ folk high school participation mainly took the form of short courses. Over time, the folk high schools have increasingly come to be used by members of parties on the left of the political spectrum. The folk high schools are commonly used as meeting places during the MPs’ political career, and thus not only as an educational pathway to power, as emphasised in earlier research.     

高中数学新课程中算法教学现状的调查与分析

算法是当前高中数学课程改革中引入的新内容.经过对实验区师生的调查访谈发现,课程改革中有关算法的理念得到了广大师生的赞同.但是还存在以下问题:(1)学生对于算法概念的理解不够全面;(2)算法在计算机和相关数学内容中的应用很差;(3)教师在教学中获得的支持不足.这些问题主要是由于课程自身、教师观念,课程资源和教师培训几方面的原因造成的。     

涡轮流量计动态特性分析

本文建立涡轮流量计动态数学模型 ,并对涡轮流量变送器的运动微分方程和传递函数进行了分析 ;从理论上计算得出 LW-1 5型涡轮流量计的单位阶跃速度响应 ;证明了限制涡轮流量计动态响应速度的瓶颈是流量积算仪的动态响应 ;最后提出了用软件代替流量积算仪的实验方案     

21世纪初我国高新技术产业发展的思考

我国高新技术产业发展已取得很大成就，但还存在国际竞争力不强等问题，加快我国高新技术产业发展要从多方面努力。     

重视现金流量表,规避投资风险

多数投资者在使用会计报表时，偏重于对企业净利润及每股收益的比较和分析，忽视现金流量所提供的信息，只有将现金流量表和资产负债表、利润表所提供的财务信息综合起来，注重现金流量的分析，才能够更好地了解企业的业绩，使利润分析包含有更多的重要信息，规避投资风险。     

用改进的元胞自动化模型模拟不同信号灯控制策略下的交通流

Traffic flows controlled by traffic light strategies were investigated via a cellular automaton model with anticipation, which is suitable for describing urban traffic. Three kinds of strategies, i. e., synchronized, green-wave and random switching lights, were designed, simulated and compared with each other. It is shown that the green-wave strategy is only valid at lower density and there is not an effective way with the three strategies to improve the efficiency of traffic flow at high density.     

生理节律与体育类高考成绩的相关性的研究

通过剖析45名2002年体育高考学生的术科和化高考取得优异成绩时的生理节律，发现生理节律与高考成绩关系密切．学生处在高潮期时易于考出好成绩．体育术科高考成绩主要与体力钟、情绪钟密切相关；化课高考成绩主要与智力钟、情绪钟密切相关．     

中小学校心理健康教育现状的调查

问卷调查发现，目前中小学校师生对心理健康教育工作都有充分一致的认识和热切愿望，但由于心理健康教育的管理机构不健全、运作机制不完善，师资队伍数量不足、水平不高，场地设施简陋，测量工具严重匮乏且不配套，方式方法单一、呆板，内容缺乏针对性，等等，致使心理健康教育工作难于摆脱传统教育惯性的影响，很难落到实处，使半数以上的师生对心理健康教育现状不满意．基于此，提出了进一步加强中小学校心理健康教育工作的建议．