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91.
吴勇 《合肥教育学院学报》2006,23(3):53-56
齐梁时期的形神之辩主要是由范缜引起的。范缜以刀利之喻代薪火之喻，说明形质而神用，持神灭论。沈约、萧琛、曹思文持神不灭论，在与范缜的辩论中，先秦道家思想也是他们利用的既有思想资源。这次大辩论使佛教得到了传播，也为今天讨论形神关系留下了经验与教训。 相似文献
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A flower image retrieval method based on ROI feature 总被引：1，自引：0，他引：1
INTRODUCTION There are about 250000 named species offlowering plants and many plant species that havenot been classified and named. Plant classificationand identification is a very old field. So far, thistime-consuming process has mainly been carriedout by taxonomists and/or botanists. A significantimprovement can be expected if the plant identifi-cation can be carried out by a computer automati-cally or semi-automatically with the aid of imageprocessing and computer vision techniqu… 相似文献
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随着甲骨文、金文和秦楚简等地下文献材料的发掘整理,为我国古代图书形制的探讨提供了非常重要的线索。而且在古代文献中,与古代图书形制有关的字体的书写和训诂资料也成为探讨古代图书形制的重要依据。 相似文献
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宋昌永 《浙江大学学报(A卷英文版)》2003,4(6):672-682
In routine design of tensioned membrane st ructures, the membrane is gen erally modeled using space membrane elements and the cables by space cable eleme nts, with no sliding allowed between the membrane and the cables. On the other h and, large deflections are expected and sliding between the membrane and the cab les is inevitable. In the present paper, the general finite element code ABAQUS was employed to investigate the influence of cable sliding on membrane surface o n the structural behavior. Three analysis models were devised to fulfill this pu rpose: (1) The membrane element shares nodes with the cable element; (2) The cab le can slide on the membrane surface freely (without friction) and (3) The cable can slide on the membrane surface, but with friction between the cable and the membrane. The sliding problem is modeled using a surface-based contact algorithm . The results from three analysis models are compared, showing that cable slidin g has only little influence on the structure shape and on the stress distributio ns in the membrane. The main influence of cable sliding may be its effect on the dynamic behavior of tensioned membrane structures. 相似文献
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通过对河南省城市、县城、农村的 92所学校 2 45 3名学生的随机调查发现 ,城市学生在力量、速度、爆发力、柔韧性、身高、体重特别是体育健康知识方面明显好于农村学生 ,而心肺功能方面明显不如农村学生。 相似文献
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在牛汉所有的诗歌作品中,那些浸透着他的血泪、裸露着他的伤疤、直立着他的硬骨、有着历史痛感的生命之歌,才是他最好最有价值的诗歌。这些诗歌的产生,与他充满苦难的人生经历、他和自然的关系、他的蒙古族血统和习性等有着密切的关联;牛汉的诗歌,为我们展现了一个广阔、高远、奇特的生命世界,其中给人印象最强烈的是四种类型:植物界生命形态、动物界生命形态、与自己命运相近者、个人自画像等,这些生命形态具有共同的特征,对于我们认识历史、认识生命及人类精神等都有着重要的价值;牛汉认为每一首诗的写作都是自己的生命在燃烧,写诗的奥秘就是把生命的火焰塑形为诗,其具体途径主要是通过客观纪实、创设情境、心灵外化、自我写照等艺术方式去实现诗的塑形。 相似文献
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本文推导了双三角—U型槽组合阀口面积计算方法和计算公式,在MATLAB软件里建立了阀口面积的计算程序,同时采用多项式分段对该组合阀口过流面积曲线进行拟合,分别得到阀口面积A(x)、面积W(x)梯度表达式。 相似文献
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LIU Yong-jin TANG Kai JOENJA Ajay 《浙江大学学报(A卷英文版)》2006,7(9):1578-1588
INTRODUCTION Polygonal surface has become ubiquitous due to its efficient representation of highly detailed geomet- ric objects with arbitrary topological type. In real-world simulation and analysis, a 3D physical object is modelled as a closed subset in ú3 bounded by a connected, compact and orientable 2D manifold. For algorithmically describing orientable 2-manifold polygonal surfaces, the practical data structure should not only easily check manifold property and topo- logical consist… 相似文献