局部凸空间k-强光滑性与k-非常光滑性的进一步探讨     

陈利国 《集宁师专学报》2011,33(4):1-6

给出局部凸空间强光滑性和非常光滑性的等价定义,由此修正了k-强光滑性与k-非常光滑性的概念,并证明k-强光滑（k-非常光滑）蕴含k＋1-强光滑（k＋1-非常光滑）,严格推广了Banach空间相应概念和结果.  相似文献   

在《C程序设计》教学中引入ACM/ICPC的学习模式     

刘宝娥 《集宁师专学报》2011,33(4):58-60

《C程序设计》已经成为很多高等院校中计算机专业的一门必修课程,它将成为学生走上工作岗位后一种非常有用的工具,也会成为学生学习其它计算机语言的基础。本文通过引入ACM/ICPC的竞赛方式,培养学生的主动式学习、竞争式学习和协作式学习模式,同时培养学生的创造性思维模式。  相似文献   

Structuring Dialogue with Students via Learning Tasks     

Sarah Gravett  Nadine Petersen 《Innovative Higher Education》2002,26(4):281-291

We discuss a teaching approach that we believe promotes deep learning and diminishes the powerful voice of the teacher, thereby allowing students and the teacher to reason actively and inquire together in the classroom. This teaching approach is based on an integration of the concepts of dialogue and of mediation and utilizes learning tasks to structure dialogue with students during classroom meetings and outside the classroom, when students work independently. Students' experiences of this approach within the two courses reported on in the article were generally positive.  相似文献   

喷锚支护在高层建筑深基坑支护中的应用     

李春霞  郭栋 《洛阳工业高等专科学校学报》2006,16(1):40-41,44

高层建筑深基坑开挖过程中边坡稳定不容易保证,喷锚支护体系是将锚杆与滑裂面以外土体连成一个整体,再通过外拉系统与深基坑边坡组成一个整体受力体,承受主动土压力,利用土层的锚固力,维持被锚固体(边坡)的稳定,从而使得开挖的基坑获得广阔的空间。  相似文献   

由Kuhn-Tucker条件看线性规划的对偶问题   总被引：3，自引：0，他引：3  

安中华 《培训与研究》2004,21(2):22-24

利用非线性规划的kuhn-Tucker条件给对偶线性规划一个统一简洁的定义，并给出线性规划与其对偶线性规划的变量和Kuhn-Tucker乘子的完整关系。  相似文献   

数字功率表设计与制作   总被引：1，自引：0，他引：1  

李松柏  朱娟  聂应国 《内江师范学院学报》2006,21(2):40-43

以时分割模拟乘法器为核心,采用CM O S双积分A/D转换器ICL 7107完成A/D转换和驱动LED显示,设计制作三位半数字功率表。介绍其设计,制作与实验。  相似文献   

天然气汽油两用燃料发动机的发展历程与展望     

张云  莫德赟  蔡妍 《教育教学论坛》2020,(12):106-107

随着社会的发展与进步,汽车日益普及,对汽油、柴油的消耗大幅增加,机动车尾气排放对环境及能源形势也产生了极大的影响。推进新能源、新技术的研究探索,具有十分重要的现实意义。文章对国内外在天然气/汽油两用燃料发动机方面的技术发展历程进行论述,并分析了天然气/汽油两用发动机的发展与应用趋势。  相似文献   

高职英语教学转变及调整初探   总被引：1，自引：0，他引：1  

于冬梅 《辽宁高职学报》2006,8(3):107-108

在大众化教育阶段,英语教师要想从根本上提高学生的整体素质,增强他们英语实用能力,就应实现从“以教师为中心”到“以学生为中心”的转变,从“以应试为目标的教育”到“以能力培养为目标的教育”的转变,注重提高英语教学的效率,培养适应社会需求的人才。  相似文献   

白细胞介素18及其生物活性   总被引：2，自引：0，他引：2  

张海秀 《哈尔滨学院学报》2005,26(5):130-132

白细胞介素18(IL-18)是新近发现的一种细胞因子，能诱导TH1细胞等产生IFN-r，GM-CSF等细胞因子及Fas配体，具有增强THI细胞和NK细胞的细胞毒作用等免疫调节功能，在抗病原微生物感染、抗肿瘤及抗超敏反映等方面具有潜在的应用前景，同时，它也是内毒素诱导的小鼠肝坏死性休克的关键因子。  相似文献   

Reformation of VET and demands on teachers’ subject knowledge – Swedish vocational teachers’ recurrent participation in a national CPD initiative     

S. Köpsén  P. Andersson 《Journal of Education & Work》2017,30(1):69-83

This study investigates continuing professional development (CPD) of vocational teachers, with a focus on recurrent participation. Vocational teachers need to be competent as teachers and in relation to their vocational teaching subject. Reformation of Swedish vocational education in order to strengthen the working-life connection imposes demands on teachers to have up-to-date knowledge about the vocations related to their vocational subjects. To support the reform, vocational teachers have been offered to participate in a new national CPD initiative targeting their vocational competence. The study concerns participation in this initiative. Drawing on a socio-cultural perspective, vocational teachers’ CPD implies boundary-crossing between school and working-life. Theory concerning adults’ participation in education is considered relevant to understand conditions for such boundary-crossing, and learning, among vocational teachers. The article specifically investigates patterns in vocational teachers’ recurrent participation, which is expected to clarify the factors influencing further participation in professional development. The strongest predictor of recurrent participation, when adjusting for the influence of other factors, is the type of municipality that the teacher comes from, with low populated municipalities having the lowest likelihood of participation. Furthermore, recurrent participation is more likely by participating teachers from adult education or from privately owned schools, and by male teachers.  相似文献