用Mathematica计算机代数系统求解数理方程   总被引：1，自引：0，他引：1  

杜建明 《淮南师范学院学报》2002,4(2):19-21

用Mathematica4.0系统软件精确求解了具有定解条件的一维波动方程和一维热传导方程。  相似文献   

基于Blog的个人知识管理     

刘旭花  杜军 《现代教育技术》2007,17(9):77-79,82

知识经济时代,个人知识的系统高效管理己经成为知识经济发展的必需。在对Blog和个人知识管理认识的基础上,探讨了用Blog实现个人知识管理的有效途径及发展个人知识管理博客应注意的问题。  相似文献   

改进财会专业教学培养学生综合能力     

李利民 《邯郸职业技术学院学报》2006,19(2):92-93,96

随着各行各业对劳动者素质和职业能力要求的提高,中等职业教育必须切实更新观念,改进专业教学,变“知识本位”为“能力本位”,加强学生综合能力的培养,为社会经济发展培养高素质的劳动者。  相似文献   

加强外语教学中的跨文化学习   总被引：2，自引：0，他引：2  

杜春发 《通化师范学院学报》2005,(2)

本文拟对跨文化交际外语教学中的作用进行探讨。要实现外语教学过程中既提高学生语言能力又培养跨文化交际能力的双重目标,决不能再按传统的外语教学思路和方法,忽视文化教学把主要精力放在语言形式和词汇的教学上,而应该将文化教学放在与语言教学同等重要的位置上,将二者统一起来。  相似文献   

Association between polymorphisms of prokineticin receptor (PKR1 rs4627609 and PKR2 rs6053283) and recurrent pregnancy loss     

Yun-lei Cao  Zhao-feng Zhang  Jian Wang  Mao-hua Miao  Jian-hua Xu  Yue-ping Shen  Ai-min Chen  Jing Du  Wei Yuan 《Journal of Zhejiang University. Science. B》2016,17(3):218-224

Recurrent pregnancy loss (RPL) is a condition with complex etiologies, to which both genetic and environmental factors may contribute. During the last decade, studies indicated that the expression patterns of the prokineticin receptor (PKR1 and PKR2) are closely related to early pregnancy. However, there are few studies on the role of PKR1 and PKR2 in RPL. In this study, we purpose to investigate the association between polymorphisms of the prokineticin receptor (PKR1 rs4627609 and PKR2 rs6053283) and RPL on a group of 93 RPL cases and 169 healthy controls. Genotyping of the single nucleotide polymorphisms (SNPs) was performed using a Sequenom MassARRAY iPLEX system. The results revealed a significant association between PKR2 rs6053283 polymorphism and RPL (P=0.003), whereas no association was observed between PKR1 rs4627609 polymorphism and RPL (P=0.929) in the Chinese Han population.  相似文献   

自流浇注料流变性质及减水剂对其影响的研究     

廖桂华  叶国田  杜兴杰 《洛阳工业高等专科学校学报》1996,(1)

本文较详细地研究了由几种微细粉配制而成的浆体的流变性能,同时通过加入不同减水剂,研究了减水剂对浆体流变性能的影响,实验表明,自流浇注料的基质——“粉体—水系统”基本上呈宾汉姆流型,而适量的减水剂的加入会明显影响它的流变性质,对于减水剂的作用机理及微细粉浆体的结构与其流变性质的关系,本文亦作了一定程度的探讨。  相似文献   

Understanding teachers’ motivation for and commitment to teaching: profiles of Chinese early career,early childhood teachers     

Limin Zhang  Shulin Yu 《Teachers and Teaching》2019,25(7):890-914

ABSTRACT

To better understand the reasons underlying attrition and the teacher shortage, and to develop ways to attract and retain high-quality teachers in early childhood education, it is necessary to explore teacher motivation and commitment to teaching. Although previous research has investigated various aspects of teacher motivation and commitment to teaching, little attention has been paid to this in the context of early childhood teachers, especially early career teachers. Drawing upon in-depth interviews with 12 early career, early childhood teachers in mainland China, this study aims to examine early career early childhood teachers’ motivation to teach and commitment to teaching in the Chinese context. Four distinct types of early career, early childhood educators were identified: committed passionate, committed compromiser, undecided, and uncommitted. Each of these had unique motives for teaching and different levels of commitment to kindergarten teaching in mainland China. The four types of early career early childhood teachers identified in this study demonstrate the diversity and complexity of teaching motivation and commitment to teaching in the field of early childhood education. The findings from this study can provide implications for policy-makers and teacher educators to enhance novice teachers’ motivation and commitment to teaching in the early childhood context.  相似文献   

磁悬浮轨道梁模板制作与工艺控制     

杜新立 《石家庄铁路职业技术学院学报》2006,5(Z1):10-13

介绍上海市磁悬浮轨道交通线工程磁悬浮轨道梁模板的制作与工艺控制方法,探讨高精度模板加工工艺控制.  相似文献   

现代教育技术的发展趋势(Ⅰ)     

杜爱明 《中国教育技术装备》2001,(2):6-9

美国教育传播与技术协会1994年推出的教育技术的新定义是:“教育技术学是关于学习过程和学习资源的设计、开发、利用、管理和评价的理论与实践。”教育技术充分运用了各种信息技术。随着科学技术的进步,应用于教育和教学过程的信息技术也在不断地发展,核心媒体经历了无线电技术一录像技术一计算机(网络)技术3个发展阶段。当前,正在经历从音像媒体向计算机(网络)为核心媒体的阶段发展,进  相似文献   

奥林匹克面临的挑战与机遇     

朱礼敏 《湖州师范学院学报》1997,(5)

以耗散结构理论为依据,分析政治因素、商业因素、兴奋剂问题对奥林匹克运动的影响。笔者认为影响是双重的,既存在熵增作用,同时也存在熵减作用,不能由于其负面影响而排斥其正面影响。挑战与机遇是并存的,只要通过人们的主观努力促进其熵减效应,抑制其熵增效应,从而促进奥林匹克运动的繁荣与发展。  相似文献