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1.
胡和平 《株洲师范高等专科学校学报》2010,(1)
2008年北京奥运会开幕式文艺表演是中华文明的一次浪漫演绎。从演出场地看,鸟巢是中国古代神话元素的物化。从表演内容看,气势恢宏,是一次中国文明的激情绽放,其主线是中国火药、造纸、活字印刷、指南针四大发明,表现了古老的东方智慧与现代科技的完美结合。整个开幕式凸现了和谐理念,再造了中华文明的当代神话。 相似文献
2.
社区远程教育是建设和谐文化的重要途径。空巢家庭目前在中国一直呈上升趋势,由于空巢家庭成员本身所具有的特点,使他们成为社区远程教育的重要对象。本文针对空巢家庭特点,从教学资源、教学内容、教学方式和考核方式等几个角度,提出社区远程教育对这一群体的教学服务模式。 相似文献
3.
Eddie Brummelman Stefanie A. Nelemans Sander Thomaes Bram Orobio de Castro 《Child development》2017,88(6):1799-1809
Western parents often give children overly positive, inflated praise. One perspective holds that inflated praise sets unattainable standards for children, eventually lowering children's self‐esteem (self‐deflation hypothesis). Another perspective holds that children internalize inflated praise to form narcissistic self‐views (self‐inflation hypothesis). These perspectives were tested in an observational‐longitudinal study (120 parent–child dyads from the Netherlands) in late childhood (ages 7–11), when narcissism and self‐esteem first emerge. Supporting the self‐deflation hypothesis, parents’ inflated praise predicted lower self‐esteem in children. Partly supporting the self‐inflation hypothesis, parents’ inflated praise predicted higher narcissism—but only in children with high self‐esteem. Noninflated praise predicted neither self‐esteem nor narcissism. Thus, inflated praise may foster the self‐views it seeks to prevent. 相似文献
4.
谭潇 《黄石理工学院学报(人文社科版)》2009,26(2):26-28
文章从人格心理及社会文化心理的角度,解读由美国名著《飞越布谷鸟巢》改编并获得五项奥斯卡大奖的影片《飞越疯人院》,并对其所反映的具有时代特征的美国六、七十年代社会文化心理变态现象,进行了表象和内涵的解剖。 相似文献
5.
项目式实验教学模式及其可行性评价方法 总被引：5，自引：2，他引：3
研究和分析了项目式实验教学法的主要特点,并在此基础上初步提出了实验教学中引入项目式教学法可行性评价的标准,指出了项目式实验教学需具有系统性整体性等特点,提出了从项目的构建、实施、管理等7方面来对项目式实验教学模式进行可行性评价。最后,以湖南大学环境学院大气污染控制工程项目式实验教学为例,简述了项目式实验教学模式的构建及评价方法。 相似文献
6.
张明霞 《实验室研究与探索》2012,31(3):9-11,14
在牛顿环干涉实验中,若在平凸透镜的凸面与平玻璃板间加入少许液体,可将液体膜局域等效于液体劈尖,则液体膜可看成是沿平凸透镜的凸面与平玻璃板接触点向外的径向线性增加的液体劈尖,利用液体劈尖的等厚干涉理论可推导出平凸透镜的曲率半径与光波波长间的关系式,进而得到液体折射率与空气膜及液体膜产生的干涉圆环直径间的关系式。利用此关系式可知,只要不改变实验装置,在未知凸透镜曲率半径和光波波长的情况下,分别测出在同一牛顿环装置下液体膜和空气膜的任意相邻干涉圆环的直径,即可方便地测出液体的折射率。 相似文献
7.
Treatment outcomes for students with learning disabilities: how important are internal and external validity? 总被引：1，自引：0，他引：1
This study analyzed the magnitude of experimental intervention outcomes as a function of violations in internal and external validity for studies that included students with learning disabilities. The results indicated that treatment outcomes were significantly affected by the following violations: teacher effects, establishing criterion levels of instructional performance, reliance on experimental measures, using different measures between pretest and posttest, using a sample heterogenous in age, and using incorrect units of analysis. Furthermore, the underreporting of information related to ethnicity, locale of the study, psychometric data, and teacher applications positively inflated the magnitude of treatment outcomes. A weighted hierarchical regression analysis revealed that composite scores of the aforementioned high-risk variables accounted for 16% of the total variance in effect size. The implications for interpreting intervention research to practice are discussed. 相似文献
8.
Robert A. Cribbie 《Structural equation modeling》2013,20(1):98-112
AbstractResearchers conducting structural equation modeling analyses rarely, if ever, control for the inflated probability of Type I errors when evaluating the statistical significance of multiple parameters in a model. In this study, the Type I error control, power and true model rates of famsilywise and false discovery rate controlling procedures were compared with rates when no multiplicity control was imposed. The results indicate that Type I error rates become severely inflated with no multiplicity control, but also that familywise error controlling procedures were extremely conservative and had very little power for detecting true relations. False discovery rate controlling procedures provided a compromise between no multiplicity control and strict familywise error control and with large sample sizes provided a high probability of making correct inferences regarding all the parameters in the model. 相似文献
9.
风力与卷烟工艺关系的实验研究 总被引：2，自引：0，他引：2
汪洋 《湖南科技学院学报》2005,26(7):272-276
本文通过对风力与卷烟工艺关系现场试验结果的综合分析研究，找出了风力变化与烟支重量的关系，即风力参数在一定范围时，烟支重量达到最佳状况。并通过对卷烟机内部风力状况的调整，使其既可提高卷烟机除梗效率又达到减少梗中含合格烟丝的目的。 相似文献
10.
2009年3月至2010年4月,采用样方法和直接观察法对商丘市区喜鹊的巢址选择进行了研究,共调查了26个巢址样方和12个对照样方的巢树参数和环境参数.结果表明,喜鹊巢址主要选择在路边高大的毛白杨树上,巢一般位于树冠的中上层,距地面高度10~20 m,偏爱选择在分枝数为3的地方筑巢,对巢下郁闭度也有很明显的选择性;在人流量大的地方或路边有巢位升高的趋势,以避免地面交通噪声和人类活动的影响,说明城市喜鹊的繁殖行为发生了适应性变化.主成分分析表明,影响喜鹊巢址选择的主要因子依次为筑巢树高、筑巢树种、样方内巢数、样方树量、巢区位置.其巢址选择其实是喜鹊对城市环境适应的一种结果,也是对各种生态因子进行权衡的结果.研究还发现,喜鹊有类似于猛禽的＂吐丸＂现象,这在以往的研究中还未见报道,其原因可能是喜鹊在繁殖后期对白杨树枝中某种营养成分的需求,还有待于进一步的研究. 相似文献
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12.
针对风道抽出式和压入式隧道通风系统风量难以平衡的问题。提出采用改变隧道与风道交角的方法．通过理论分析和模型实验得出风道抽出式和压入式隧道通风系统的性能差异,采用隧道与风道不同交角的方法能有效解决风量不均衡问题,并为其应用到实际工程中提供了实验依据． 相似文献
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14.
以膜分离这一类高新技术在工业生产中的日益广泛应用为背景,将新型膜分离技术——膜蒸馏引入化工基础实验教学。所设计的实验装置具有平台化结构,可进行内容丰富、理论层次高的研究型和探索性实验。教学实践结果表明,在化工基础实验教学中使用所开发的膜蒸馏装置,可使学生的动手能力、独立思维能力和创新能力得到很好的锻炼和提高。 相似文献
15.
本文对送风口径可调的圆盘形散流器进行了实验研究,该散流器呈倒蘑菇形,设计有不同开口高度对应的三档扇叶位置。本文分别对各出风位置进行不同风量下常温射流特性实验和压力特性实验,比较了不同高径比和净面积比下散流器的最大中心速度、射程、全压损失的变化情况。实验结果表明:开口高度设在最小的档位时向下射流,最大中心速度下降快,全压损失大,风量对扩散半径影响很小。随着开口高度增大,风口变为水平送风,射流最大中心速度随开度的增大下降减慢,全压损失减小,到达一定开口高度后,射程几乎不受风量的变化影响。该圆盘形散流器可在高大空间中满足输送冷、暖风所需的不同送风方式。 相似文献
16.
Brian Clauser Kathleen M. Mazor Ronald K. Hambleton 《Journal of Educational Measurement》1994,31(1):67-78
Previous research examining the effects of reducing the number of score groups used in the matching criterion of the Mantel-Haenszel procedure, when screening for DIF, has produced ambiguous results. The goal of this study was to resolve the ambiguity by examining the problem with a simulated data set. The main results from this study call into question the preliminary recommendations of several other researchers that four or more score groups are sufficient and produce stable results. Although considerable stability and very little Type I error was noted with equal ability distribution comparisons, with unequal ability distributions, the Type I error rate was substantially inflated. These results argue against the appropriateness of implementing the procedure by collapsing score groups. The current data suggest that more than modest reductions in the number of score groups cannot be recommended when the ability distributions of the reference and focal groups differ 相似文献
17.
The spatial distribution of extracellular polymeric substances （EPS） in a pilot-scale membrane bioreactor （MBR） was studied. The sampling points on top of and inside the membrane module were measured and analyzed by the experimental variant function. The content of EPS was spatially interpolated by ordinary Kriging method, and il- lustrated with SURFER software. A case study was carried out in an MBR with membrane aperture of 0.4 ~tm and handling capacity of 120 ma/d in Jizhuangzi sewage treatment plant, Tianjin. From the visualization of EPS distribu- tion, it is seen that on the horizontal plane, the content of EPS was the lowest at the center; and on the vertical plane, the content of EPS decreased with the increase of depth. The shearing force caused by aeration of perforated pipe and the influent mode are the main influencing factors for this distribution. 相似文献
18.
The spatial distribution of extracellular polymeric substances (EPS) in a pilot-scale membrane bioreactor (MBR) was studied. The sampling points on top of and inside the membrane module were measured and analyzed by the experimental variant function. The content of EPS was spatially interpolated by ordinary Kriging method, and illustrated with SURFER software. A case study was carried out in an MBR with membrane aperture of 0.4 μm and handling capacity of 120 m3/d in Jizhuangzi sewage treatment plant, Tianj... 相似文献
19.
An experimental study on heat transfer and resistance coefficients of linearly arranged smooth and spirally corrugated tube bundles in cross-flow was performed. The heat transfer and resistance coefficients are presented in this paper with transverse and longitudinal tube-pitch and tube geometries taken into account. The experiment's results can provide technical guidelines for application to horizontal air preheater with arranged in-line spirally corrugated tube bundles, especially to the air preheater for CFBCBs (Circulating Fluidized Bed Combustion Boilers). 相似文献
20.
通过对南京地区某双层玻璃幕墙建筑在夏季白天不同运行模式下的表皮各层和室内温度分布对比实测,分析该建筑的热特性.结果表明:在9.5 h内,房间B在外层通风口打开、内层表皮紧闭、中间遮阳完全启用的情形下,空调系统能耗比房间A在内外层表皮均完全紧闭、无遮阳设施情形下减少21.0%.玻璃幕墙各层表皮和室内各状态点的温度沿水平和垂直方向的分布规律均受到遮阳状态的显著影响.中间遮阳设施的启用有助于强化热通道的烟囱效应.相较于房间A,房间B的温度分布更加均匀.但在所有的测试工况下,双层玻璃幕墙热通道的过热问题始终存在. 相似文献