共查询到20条相似文献,搜索用时 171 毫秒
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数控加工仿真是计算机辅助设计与制造的关键技术之一。复杂曲面加工的仿真技术对于加工精度和加工表面质量分析具有重要意义。作者通过对数控加工基本运动单元的深入分析,归纳出利用数控运动参数求解刀具表面与工件表面之间相对运动的方法。该方法简单,计算效率高,为数控加工仿真的通用算法打下基础。 相似文献
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杨建庭 《中学物理教学参考》2006,35(1):41-45
叠加原理是联系简单运动和复杂运动的纽带,是把复杂运动的研究等效转化为研究简单运动的科学方法,是物理学中普遍原理之一.从科学方法角度看,叠加原理是等效方法的重要组成部分,它揭示了描述复杂运动特征(或物质属性)的物理量与描述几个简单运动特征(或物质属性)的同种物理量共同作用时的等效关系.作为普遍原理和科学方法, 相似文献
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黄晓丽 《上海师范大学学报(哲学社会科学版)》2001,30(9):111-114
用实验的方法论证了采用“800米分段强度参数”进行教学与训练,能较大地提高大学女子800米跑的成绩。并用运动生理学、运动生物力学等原理对实验结果进行了分析和讨论。 相似文献
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决定现代运动成绩的因素很多,但最重要的是运动素质的高低,通过探究运动素质转移的原理和机制,并在运动实践中加以运用,以达到促进身体素质协调发展,不断提高运动技术水平的目的。 相似文献
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田振军 《陕西师范大学继续教育学报》2000,17(3):119-122
本文系统论叙了运动解剖学逻辑记忆法的神经生物学机制,对该方法进行了分类和个案实验研究。结果表明,运动解剖学逻辑记忆法符合神经生物学原理,可分为文字口诀类、分析综合类,形象特征类和情境趣味类等四大类,该方法可有效地提高STM能力和LTM再提取能力。 相似文献
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温存华 《中国教育研究与创新》2006,3(8):29-30
在统编的全国中等卫校医用物理学教材第一章第三节内容中,讲述了机械能的转化和守恒定律,推论了功能原理。为了印证上述定律在认识人体运动机理中的重要作用,编者引出了二道应用题加以验证。这二道习题应用了迁移联想的物理推理方法设计计算人体运动问题,是典型的理论与实践相结合的生动范例。但在教学实践中,如果仔细推敲该题的物理过程,就会出现“逻辑缺陷”,导致失去范例的生动性。 相似文献
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《Educational Philosophy and Theory》2013,45(6):885-906
This article draws on Foucault's concept of governmentality to explore how recent political moves to legalise ‘flexibility’ mobilises education authorities to make ‘community’ a technical means of achieving the political objective of schooling the child. I argue that ‘flexibility’ in this sense is a neo‐liberal strategy that shifts relations between the governed and the State. In this way, it transforms the idea of schooling from a State run institution for the purpose of ‘community building’ to a community run institution for the purpose of making parents governable by both instrumentalising and institutionalising individualism through the force of community membership. Rather than a form of liberation from bureaucratic rule, the paper exposes how ‘flexibility’ acts as a normalising strategy that works with difference to entangle parents as community members in the process of schooling the child through the moral obligation of the contract. 相似文献
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李泰山 《苏州教育学院学报》2007,24(4):60-63
在我国,行政公产仍然是一个学术意义上的概念,但行政公产作为行政的物的手段的功能正日益显现。在对大陆法系国家公产制度比较分析的基础上,首先阐述了行政公产的理论内涵,其次结合行政公产的分类进一步说明了行政公产的内容,最后从行政公产的融通、强制执行以及公用征收等都严格受到一定条件和目的的限制角度分析了行政公产的法律特征。 相似文献
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Kirstine Hansen 《British Educational Research Journal》2014,40(3):483-500
This paper uses data from the Millennium Cohort Study (MCS) to examine house moves that take place in the pre‐school years, focusing on families who move for the education of their children. We present results showing that education‐ related house moves do indeed occur in the pre‐school years with particular types of parents making these education‐related moves to ensure their children attend a good primary school. We then examine whether this demand for high quality schooling is associated with a house price premia by linking the MCS data to Land Registry data and show that parents are prepared to pay significantly more to buy a house located near to better performing primary schools, even before their children reach school starting age. We interpret this as evidence of demand for school quality in the early years as parents (especially more educated and advantaged parents) ‘gear up’ their quest for what they perceive to be better schooling for their children before they start school. 相似文献
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This paper offers a critical analysis of the education policy move towards teacher professional standards. Drawing on Lacan’s three registers of the psyche (real, imaginary and symbolic), the paper argues that moves towards codification (and domestication) of teachers’ work and identities in standardized (and sanitized) forms, such as the Australian Institute for Teaching and School Leadership professional standards recently adopted in Australia, can be read as a colonization of the Real and the imaginary by (a rather static, mortified form of) the symbolic. The paper argues that in response to such normalizing moves, we need to consider how we might conceptualize the reanimation of what it means to teach and be a teacher, something we attempt in terms of enabling each of the psyche’s registers to inter-animate each other, as a means of engendering teacher identities characterized by criticality, creativity and passion – that is, by an ethics of singularity rather than by standardization. 相似文献
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流域生态需水量计算方法的研究 总被引:3,自引:0,他引:3
从保证生态环境稳定的角度出发,重点探讨了半湿润地区生态环境建设中生态需水量的估算问题.将流域生态需水量分为河道外和河道内生态需水量两部分,结合水量平衡原理,分别讨论了这两部分生态需水量的计算方法,为制定社会经济的发展规划提供决策支持. 相似文献
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徐农 《小作家选刊(小学)》2011,(11):189-190
运用好等价无穷小量的性质.在求极限的运算中,可起到罗比塔法则所不能取代的作用。本文通过实例的对比,反映用替换等价无穷小量与罗比塔法则求极限的优劣,以及使用等价无穷小量替换所具备的条件,避免出现错误地应用等价无穷小量。 相似文献
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湖北省高校开展武术运动的现状分析及对策研究 总被引:1,自引:0,他引:1
霍俊哲 《荆门职业技术学院学报》2007,22(6):87-91
湖北省普通高校武术运动的开展情况不容乐观,武术教学的进一步深化改革已迫在眉睫。在这一背景下,通过对湖北省普通高校武术运动开展现状进行调查,深入分析湖北省高校武术运动存在的问题,寻找振兴高校武术运动发展的途径,以期在全省普通高校中形成一种浓厚的武术文化氛围。 相似文献
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从基于"知网"的句子相似度计算的角度出发,研究了文字类主观题批阅的自动阅卷系统,并用文中阐述的理论观点实现了这个系统,达到了预期的目标。 相似文献