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新课程理念要求我们的信息技术教师必须以科学研究的态度对教学素材进行广泛的积累,对教学内容进行刻苦的钻研,对教学对象进行全面的了解,对教学步骤进行周密的安排,对教法和学法进行认真的探讨,只有精心地做好课堂教学设计,才能上好每一堂课. 相似文献
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本文主要对集资诈骗罪的法律适用进行了探讨.首先对集资诈骗罪的间接主要特征--间接故意进行了介绍,其次对"非法占有"进行了分析,再次,对关于集资诈骗罪的未完成形态问题进行了探讨,最后对集资诈骗罪与他罪的区别进行了总括. 相似文献
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新课程理念要求我们的信息技术教师必须以科学研究的态度对教学素材进行广泛的积累,对教学内容进行刻苦的钻研,对教学对象进行全面的了解,对教学步骤进行周密的安排,对教法和学法进行认真的探讨,只有精心地做好课堂教学设计,才能上好每一堂课。 相似文献
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在对现有有关新闻法律关系研究成果进行比较的基础上,对新闻法律关系的基本问题进行了研究,包括对新闻法律关系进行了概念界定,将新闻法律关系与一般的法律关系进行比较,总结了新闻法律关系的特点,并对新闻法律关系要素进行了研究。 相似文献
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在对现有有关新闻法律关系研究成果进行比较的基础上,对新闻法律关系的基本问题进行了研究,包括对新闻法律关系进行了概念界定,将新闻法律关系与一般的法律关系进行比较,总结了新闻法律关系的特点,并对新闻法律关系要素进行了研究. 相似文献
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作者在坚持学习的基础上,对化学课堂教学模式进行研究,对实验问题进行理性思考,对实验试题的命制进行大胆尝试,最终形成对自己职业生涯的反思。 相似文献
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提出使用文本相似度算法与DBSCAN聚类算法相结合的方法对文本进行聚类,实现对文本的管理。首先对文本进行特征提取和分词操作,在分词过程中会产生大量的特征词汇,而有些特征词汇对文本特征的表达并无实际意义。因此,在文本特征提取过程中根据特征词汇对文本特征表达的贡献度进行取舍,以提高文本聚类的效率和准确性。利用TF IDF方法对特征词汇进行加权,并且对文本进行相似度计算,将相似度低于阈值的文本作为孤立点进行处理。利用DBSCAN算法对文本进行聚类,将相似的文本聚为一类。 相似文献
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刘勰的文学批评观是针对轻浮绮靡的齐梁文风和当时对同部作晶褒贬不一的背景提出的．他的文学批评的客观标准是贯穿于“六义”到“六观”之中的系统批评观。“六义”是宗经的效果．“六观”是考察方法．两者都不能独立成为刘勰的文学批评观。刘勰认为,要正确评价作品。要综合从“六义”“四事”“三准”“六观”这个系统中表现出来的批评方法。“六义”“四事”“三准”“六观”互相联系、互相阐释．它们围绕的核心“情、事、辞”就是刘勰真正的文学标准。刘勰不论是谈文学创作,还是谈文学批评,都是从“情、事、辞”的角度来衡量的。并以其它文学批评元素为补充。从而形成一个相对完整的批评体系。 相似文献
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本文介绍了自来水厂污泥沉降性能及浓缩性能的主要影响因素。结果表明：污泥的起始浓度是影响其浓缩性能的一个重要因素。同时，改变污泥的pH值和投加高分子絮凝剂对污泥的浓缩和脱水都有影响。 相似文献
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The study explores whether the naive concepts of solid and liquid persist in adolescence. Accuracy of responses and reaction times where measured while 41 ninth graders classified different
solids (rigid, non-rigid and powders) and different liquids (runny, dense) into solid or liquid. The results show that these
naive conceptions affect adolescences’ classifications in terms of both accuracy and reaction time. The rate of correct classifications
of non-rigid solids and powders was significantly lower than of rigid solids. Lower rate of success was also found for classification
of dense liquids compared with runny liquids. In addition, the reaction time results of correct classifications for non-rigid
solids and powders were longer than those for rigid solids and, likewise, reaction times for dense liquids were longer than
for runny ones. These results suggest that reasoning processes associated with correct classification of objects that are
not consistent with the naive conceptions are more demanding. 相似文献
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关于旋转体体积的研究 总被引：1，自引：0，他引：1
唐燕贞 《福建工程学院学报》2006,4(3):377-380
阐述了平面图形绕坐标轴旋转产生的旋转体体积与形心坐标之间的联系。在此基础上把它推广到绕任意直线旋转的情况。并得出求旋转体体积的一般，公式。 相似文献
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范建中 《雁北师范学院学报》2005,21(2):75-76
从最简单的爱因斯坦模型到比较复杂的德拜模型对固体热容量进行了研究，分析了它们的特点和不足，并且对金属中自由电子气对热容量的贡献进行了认真探讨． 相似文献
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降低循环水场循环水浊度新方法探究 总被引：1，自引：0，他引：1
针对循环水浊度偏高问题,分析造成悬浮物、浊度升高的原因,通过增加隔油池排泥反洗实验,探究降低循环水浊度的新方法,评价排泥反洗中试装置中,浅层压力式过滤罐与滤池降低浊度的效果对比,在加药和不加药两种情况下,浊度和去除率的情况。 相似文献
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张丙强 《福建工程学院学报》2011,9(1)
受组合体读图的形体分析法启发,提出求解带孔洞立体截交线和相贯线的分部作图法,将带孔洞立体分为外部形体和内部孔洞两部分,分别求出其截交线或者相贯线,然后再对外部形体和内部孔洞的轮廓线进行整理,并结合4个例子详细介绍了作图过程. 相似文献
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Jana Bouwma‐Gearhart James Stewart Keffrelyn Brown 《International Journal of Science Education》2013,35(9):1157-1174
Understanding the particulate nature of matter (PNM) is vital for participating in many areas of science. We assessed 11 students’ atomic/molecular‐level explanations of real‐world phenomena after their participation in a modelling‐based PNM unit. All 11 students offered a scientifically acceptable model regarding atomic/molecular behaviour in non‐heated solids. Yet, 10 of 11 students expressed the view that, in response to added heat energy, atoms/molecules in a solid increase in movement to a degree beyond what is scientifically accepted. These students attributed a gas‐like model of atomic/molecular movement to situations involving a heated solid. Of the students who held two conflicting models of atomic/molecular movement in solids, almost all provided justification for doing so, indicating their holding of the conflicting models was unproblematic. These findings can be interpreted to mean that students may drop constraints of certain scientific representations and apply, assess, or revise models when explaining unfamiliar phenomena. In fact, we believe students may develop conflicting causal models as a result of misperceptions they acquire, in part, during classroom instruction regarding atomic/molecular movement. However, our findings may also be interpreted as an incidence of student model development that may later aid their understanding of a more complex model, one that involves substantial sub‐atomic electron movement to account for heat transfer in solids. Whether or not this is the case remains to be seen. Implications for student learning and instruction are discussed. 相似文献
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本文根据试验结果，拟合了安庆地区尾张温州蜜柑生长后期果实的可溶性固形物，可滴走酸含量及固酸比变化的数学模型，并结合果实外观变化，确定了安庆地区温州蜜柑最适采收成熟度的综合指标为：可溶性固形物含量达１１％．固酸比为１０：１，着色部分占果实总面积的３／５。 相似文献
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Patrick McCloskey 《教育心理学》1995,15(1):3-10
A total of 127 11 + and 81 12 + subjects drew rectangular solids from memory, after viewing them from different positions. The results were correlated with IQ, vocabulary, verbal judgement and reasoning, and a spatial test with assessment in art and crafts. Unexpectedly high and significant correlations were yielded between drawing solids and cognitive tests involving verbal ability, when compared with correlations between solids, the spatial test and craft subjects, especially for the 12 + group. This appeared contrary to received views on the association of aptitude in drawing with spatial ability. Furthermore, as spatial factors are considered to underpin drawing and craft subjects, a closer association between these, rather than between drawing and verbal ability, was expected. This outcome raised certain theoretical questions concerning drawing and its interaction with perception, language, memory and intellectual development. 相似文献