教师教学行为的转变--新课改背景下教学改革的关键     

李缅 《当代教育论坛》2006,(8):89-91

施志毅、廖可珍从行为科学的定义出发,认为行为是个体心理特征和环境的函数,用一般的教学模式可表示为:B=f(pa,b,c,Em,a,o),其中B-行为,p-个体心理特征,E-环境因素.  相似文献   

Guidance as a means for enhancing the functional operations of the Elective System at Kuwait University     

Mohammad Jawad Ridha 《International journal for the advancement of counseling》1982,5(3):207-214

In 1975/76 Kuwait University was transferred to an Elective System and initially, the article reviews the rationale and objectives of such a change. Guidance or advisement is considered a key means to achieve these objectives. The major focus of the article is an examination of several attempts to assess/evaluate the implementation and effectiveness of advisement. Recommendations for practical solutions to those problems which surround this practice are also discussed.Paper submitted to the International Consultation Conference on Career Guidance in Higher Education convened by IRTAC and Robinson College — Cambridge University, 13–17 December 1981, Robinson College, Cambridge, England.  相似文献   

碳酸盐岩酸化压裂力学性质劣化效应试验     

张鲲鹏  陈勉  戴一凡  李佳欣  王士国  罗仁坤 《实验室研究与探索》2020,(3):30-34,92

为了模拟井下压裂作用下胶凝酸和清洁酸作用时的碳酸盐岩破裂机制,了解两种酸液体系作用后的强度劣化效应,进行了拟三轴岩石力学试验以及3-D扫描。试验结果表明:与胶凝酸反应后,碳酸盐岩弹性模量、泊松比和抗压强度均呈降低趋势,其中泊松比降低幅度明显,酸蚀90 min时,降幅达到18.15%;与清洁酸反应后,碳酸盐岩弹性模量、抗压强度在酸蚀初始阶段小幅提高,当酸蚀时间达到90 min后,两者降幅分别为21.04%及23.55%,泊松比降幅为4.36%,岩石力学性质劣化效应明显,脆性指数升高12.09%;与胶凝酸反应90 min后,碳酸盐岩的脆性指数提高58.56%,破裂压力呈下降趋势;与清洁酸反应后,裂缝壁面粗糙程度明显降低,裂缝导流能力呈降低趋势。酸压后的力学性质劣化特征可为酸化压裂设计及参数优化提供基础数据。  相似文献   

后殖民主义视角下的《了不起的盖茨比》     

肖绵 《株洲师范高等专科学校学报》2006,11(3):29-32

《了不起的盖茨比》是20世纪美国最重要的小说家之一弗.司各特.菲茨杰拉德的代表作,运用后殖民主义理论分析小说中对少数族裔者的客体他者化现象以及他者化主体自身为寻求主流精神归属的种种模仿行为,可以揭示隐匿在美国文化深层的后殖民主义意识形态。  相似文献   

红脉钓樟种内与种间竞争关系的研究     

金则新  卢棉  蔡碧君 《台州学院学报》2003,25(3):54-57

用Hegyi的单木竞争指数模型对天台山红脉钓樟的种内、种间的竞争强度进行定量分析。结果表明:红脉钓樟种内竞争较之与其伴生树种七子花间的竞争弱。红脉钓樟种内、种间竞争强度的大小顺序为:七子花>种内>苦枥木>青钱柳>江浙钓樟>红果钓樟>阔叶蜡瓣花>榔榆>尾叶樱>柳杉。竞争木对对象木的竞争强度与对象木的个体大小服从幂函数关系,竞争强度随对象木个体大小的增大而减小;竞争强度与对象木胸径大小呈极显著的负相关关系。  相似文献   

Application of Quality Function Deployment for the Improvement of Quality in an Engineering Department     

Mohammad S. Owlia  Elaine M. Aspinwall 《European Journal of Engineering Education》1998,23(1):105-115

In adopting a customer‐oriented approach to higher education, quality function deployment (QFD) is one of the total quality management techniques which can be applied for process and design improvement. Following a review of some practices in this sector, this paper outlines a QFD model in which the opinions of three groups of customers are utilized for quality planning. A developed framework for the dimensions of quality in engineering education was used in conjunction with the quality processes in a departmental quality management framework proposed by the Engineering Professors’ Council. The results from the QFD led to a strategy for prioritizing the different quality processes within a school/department.  相似文献   

甘肃省能源经济系统分析与优化策略研究   总被引：2，自引：1，他引：1  

杨冕  陈兴鹏  杨福霞 《资源科学》2010,32(2):359-365

能源经济系统的优化不仅是实现区域节能减排目标的重要途径,更是社会经济可持续发展的主要内容,本文以甘肃省为研究案例,基于计量经济学方法,对其经济增长与能源消耗之间的动态关系进行了定量研究;进而运用结构分解模型,对比分析了影响单位GDP能耗的主要因素。研究结果表明:甘肃省GDP与能耗总量之间存在长期的协整关系;促进甘肃省能源强度降低的主要因素是各产业能源利用效率的提高,而产业结构变动对全省能源强度降低的贡献份额较小;对能源强度降低贡献较大的为第二产业的效率份额与结构份额,而第三产业结构份额对能源强度降低的贡献为负。文章最后从产业结构优化、关键技术推进、能源结构优化三个角度提出了甘肃省能源经济系统的优化策略。  相似文献   

TS fuzzy robust L1 control for nonlinear systems with persistent bounded disturbances     

Navid Vafamand  Mohammad Hassan Asemani  Alireza Khayatian 《Journal of The Franklin Institute》2017,354(14):5854-5876

In this paper, a novel technique for Takagi–Sugeno (TS) model-based robust L₁ controller design of nonlinear systems is proposed. Two synthesis methods based on quadratic and non-quadratic Lyapunov functions are considered. To design the robust stabilizing controller, a new approach for deriving sufficient conditions associated with the L₁ performance criterion in terms of strict linear matrix inequality is proposed. This novel technique results in less pre-chosen scalar design variables and calculation burden. Furthermore, deriving the controller synthesis conditions via a non-quadratic Lyapunov function (NQLF) relaxes the obtained conditions. Therefore, the proposed approaches not only efficiently minimize the effect of persistent bounded disturbance, but also are applicable for wider classes of TS systems. Furthermore, some new lemmas are proposed to facilitate strict LMI formulation and to provide more degrees of freedom. Finally, several numerical and practical examples are presented to show the merits of this paper.  相似文献   

HPLC法测定骨愈灵片中人参皂苷Rg1和三七皂苷R1的含量   总被引：2，自引：0，他引：2  

张冕 《荆门职业技术学院学报》2009,24(2):43-46

目的：建立骨愈灵片中人参皂苷Rg1和三七皂苷R1的含量测定方法。方法：采用高效液相色谱法,乙腈-水（18：82）为流动相;流速1．0mL·min^-1;检测波长203131／1。结果：人参皂苷Rg1的回归方程为Y=2．829X＋4．167（r=0．9999,n=5）,线性范围为3．0～22．5ug;三七皂苷R1的回归方程为Y=7．580X-3．971（r=0．9996,n=5）,线性范围为1．0～7．5ug。平均回收率分别为98．95％、99．27％。结论：本方法准确、灵敏,可用于骨愈灵片的质量控制。  相似文献   

Internationalization of higher education： Challenges, strategies, policies and programs   总被引：1，自引：0，他引：1  

Akbar Zolfaghari Mohammad Shatar Sabran Ali Zolfaghari 《美中教育评论》2009,6(5):1-8,20

In today＇s changing world, the idea of internationalization of higher education especially in developing countries has been deduced from globalization of education process. The international aspect of higher education is becoming increasingly important, composite, and confusing. The higher education has an effect on the society through policy-making, funding, and planning. The purpose of this paper is to analyze the meaning, definition, importance, necessity, and pre-requisites of internationalization of higher education. This paper also studies the programs and strategies of internationalization of higher education. Key challenges for the future direction of internationalization are identified in this paper.  相似文献