虚拟制造技术及其在制造业中的应用

从虚拟制造的形成背景,介绍了虚拟制造的特点、分类;并对虚拟制造的核心技术及理论体系等多方面进行详细阐述。最后就虚拟制造的应用和虚拟制造技术的发展潜力和国内外现状进行系统介绍。     

How children's creative visual imagination and creative thinking relate to their representation of space

This article explores how creative visual imagination and creative thinking can help children to construct mental models of space. A mixed-method study, integrating quantitative and qualitative approaches and involving 98 five-year-old children (54 girls and 44 boys) demonstrated that creative visual imagination, rather than creative thinking, is linked with the knowledge and understanding of space. These results support the notion that creative visual imagination contributes to improvements in children's understanding of basic astronomical concepts. Interestingly, creative thinking was not associated with understanding and knowledge of cosmic phenomena in models taking into account creative imagination. The qualitative analysis showed differences in children's representations of space. We discuss the consequences of these findings for science education, particularly the teaching of elementary astronomy.     

With the eyes of others: an ethnography of an academic office

The author raises questions about ethnographic methodology through exploring the implications of using observations produced by his colleagues about his office as data for his research. This process blurred the boundaries between researcher, method and the object and subject of research. It meets some criteria for ethnography and not others, and does not evidence clear definitional boundaries for any sub-genre such as autoethnography or collaborative authoethnography. Besides raising definitional challenges and the blurring of roles in research, the study also illustrates how the methodology revealed tensions over collegial trust, boundaries and privacy. The author's colleagues exposed aspects of the author's identity that were opaque and even invisible to the author. The author accordingly raises questions about the locus of ethical concern. Thus, issues of roles, definition, trust, boundaries, privacy and method were entwined.     

Meta-ethnography of autoethnographies: a worked example of the method using educational studies

ABSTRACT

Despite questions about autoethnography in the ethnography and education research family, autoethnography is published in selective peer-reviewed journals in education and in the social and health sciences. Even critics of autoethnographic studies note their ‘rising acceptance in the past 15 years’ [Delamont, S. 2009. “The Only Honest Thing: Autoethnography, Reflexivity and Small Crises in Fieldwork.” Ethnography and Education 4 (1): 51–63]. However, there has been less effort towards qualitative meta-synthesis to learn what other insights might be gained from collections of studies. With the advent of meta-autoethnography [Ellis, C. 2009. Revision: Autoethnographic Reflections of Life and Work. Walnut Creek, CA: Left Coast Press], each author can find a way to synthesise her/his own autoethnographic works, however, synthesising autoethnographies of different authors has received no attention. This article examines a critical, systematic approach to the meta-ethnography of autoethnographies and offers a worked example of the method using educational studies.     

Bullying and the Unique Socioemotional Needs of Gifted and Talented Early Adolescents: Veteran Teacher Perspectives and Practices

Much is written at the elementary school level concerning bullying and the socioemotional needs of gifted and talented (GT) students; however, in the last 10 years, little qualitative research exists concerning the early adolescent GT age group. In the social environment of classroom life, early and current research indicates that many of these students experience neurotic perfectionism, overexciteabilities (OEs), developmental asynchrony, and bullying. The formation of autonomous classes (GT-only classes) has afforded some hope concerning the amelioration of such problems; nevertheless, in this study, detailed evidence of classroom bullying in the form of social ostracism and teasing has been found with this GT age group. If left unchecked, psychological autopsies have shown these students suffering emotional difficulties and even committing suicide as a result of school and classroom torment. With such potential for classroom bullying problems, few studies address what veteran teachers of early adolescent GT students do to keep students psychologically safe. Within the social milieu of classroom life, and in comparison to research standards, this study explores three efficacious teacher perspectives and practices.     

现代壁挂在室内环境中的美学意义

现代壁挂的起源与发展以及独特的编织艺术形式，给现代人带来了精神和物质享受，同时也表现了现代壁挂在特定环境中的美学意义。     

利用语言实验室优化英语教学效果

充分利用各种现代教学设备在语言实验室进行英语教学,可以大大提高学生的英语听说能力、语言综合运用能力和语言交际能力,同时也能培养学生的观察、记忆、想象能力和创新精神,从而优化英语教学效果。     

线性代数教学中加强几何直观教学的意义

讨论了在线性代数教学中加强几何直观教学的重要性,指出,线性代数的概念引入、定理的几何意义说明、定理应用等几个方面均可以给出几何意义的阐述;由此可以激发学生学习线性代数的兴趣,培养学生应用线性代数知识的能力。     

La Parte Chusca of a Pedagogical Here and Now: Oaxacan Teachers’ Heteroglossic Joking About State Repression and Educational Reform

Faced with repression and reform, humor has become tactical for public school teachers in Oaxaca, Mexico, engaged in a decades-old movement that after 2006 involved intensified street- and school-based pedagogies. This piece explores how humor adds to a political project via mocking names, images, and dictates of elite leaders to bring a here and now to what is taken as inaccessible in the teachers’ political lives. Humor forms part of an (e)sc(h)atology in which critical practices are part eschatological, a call for definite transformation, and part scatological, embodied vulgarity. La parte chusca (the funny part), its (e)sc(h)atological contribution, angles toward critical literacies in Oaxaca and beyond.     

科学计算中辅助技术探讨

科学计算中辅助技术是计算机科学发展到一定阶段而提出的一个很有实际意义的课题．本文针对科学计算过程探讨了工程数据库技术和可视计算技术