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71.
曾艳玲 《机械制造与自动化》2012,41(2):98-100
单纯的用成绩来评定学生的能力已经不适应新世纪人才的要求,传统的评定方法需要用全新的方法来取代,尝试采用模糊综合评判,来评定学生的学科能力,充分体现教与学的动态过程,在教师提高教学质量和学生成才方面有着重要的指导意义. 相似文献
72.
José Ignacio Rojas-Sola Ángel Inocencio Aguilera-García 《Mineral Processing and Extractive Metallurgy Review》2013,34(6):349-369
The main objective of this study is to analyze the evolution of the research in the category ‘Mining & Mineral Processing’. First, we have revised journals that are in this subject category in the database Science Citation Index-Expanded (SCI-E) of the Web of Science (WoS).Second, we have analyzed publications for journals between 1997 and 2012, with an analysis from the perspective of both quantity and quality. To do this, we have analyzed various bibliometric indicators for different countries and research centers such as the number of documents (article and review), showing per document, productivity, the average number of citations, authors, research centers, national and international collaboration including their networks, the weighted and relative impact factor, as well as the h-index. Furthermore, we have analyzed the international dissemination of research of countries through journals and the relationship with the impact factor to detect the published journals of each country.We have also shown that English is the most common language of publication, and the United States is the most productive country, although it has a relatively low impact factor due to the dispersion of its publications in low or medium impact journals. We can also see that University of Science and Technology of Beijing and the Russian Academy of Sciences have been the most productive institutions during the period under study, along with the large increase of the Atomic Energy and Alternative Energies Commission of France (CEA). 相似文献
73.
简述了企业(主要指有污染物产生的企业)是环境保护的责任主体,企业作为环境的污染者,就必须承担保护环境的责任。提出排放污染物的企业环保工作必须做到污染物集中排放,必须达到标准;通过清洁生产规范生产区的无组织排放;实施循环经济减少污染物的产生;开展环境管理认证,提高企业环境保护工作水平;发布企业环境保护工作信息,履行企业的社会责任。 相似文献
74.
简要阐述了新世纪对人才素质的要求和学科发展的特点,结合交叉学科材料化学的产生、特点,探讨了该学科的教学难点,提出了实现教学目标的对策. 相似文献
75.
电机学教学中应注意的几个问题 总被引:7,自引:3,他引:4
为了使学生尽快掌握常用电机的基本理论与基本分析方法,作者提出了一些观点:少而精的教学内容,理论联系实际,注重学科结构并广泛使用各种教学媒介和双向媒介手段。 相似文献
76.
77.
This paper describes an online image analysis tool developed as part of an iterative, user-centered development of an online Virtual Learning Environment (VLE) called the Education through Virtual Experience (EVE) Portal. The VLE provides a Web portal through which schoolchildren and their teachers create scientific proposals, retrieve images and other resources, and produce collaborative scientific papers summarizing their learning experiences. The VLE underwent substantive formative testing involving over 200 schoolchildren producing over 50 collaboratively written research papers. Detailed analysis of these research papers identified some shortfalls toward the goal of producing authentic scientific engagement. The absence of data collection and data analysis within these research papers was disappointing despite having scheduled time for this activity and having several professional imaging tools available. The post-evaluation analyses have enabled the development team to identify specific design flaws in the previous VLE and have shaped the design of the new custom-built tool. The success of the tool will be born out through content analysis of future collaboratively written student papers. 相似文献
78.
The effects of instructional support and learner interests when learning using computer simulations 总被引:1,自引:0,他引:1
Within the scope of this study, the effectiveness of two kinds of instructional support was evaluated with regard to the learner’s interests. Two versions of a simulation program about the respiratory chain were developed, differing only in the kind of tasks provided for instructional support: One version contained problem-solving tasks, the other one contained worked-out examples. The focus was on the learner’s interest in the subject and in computers. The first goal of the study was to find to what extent computer simulations incorporating the different kinds of instructional support have positive effects on situational subject-interest. The second goal was to evaluate the interactions between the learner’s interests and the instructional support with regard to the learning results (subdivided into factual knowledge and understanding). Simulations with worked-out examples were shown to have positive effects on the learner’s situational interest in the subject. This was not found to be the case in simulations with problem-solving tasks. Regardless of the kind of instructional support, learners with little interest in the subject were able to achieve significant gains in factual knowledge. However, improvement in understanding was dependent on the kind of instructional support. 相似文献
79.
We present PKIP, an adaptable learning assistant tool for managing question items in item banks. PKIP is not only able to automatically assist educational users to categorize the question items into predefined categories by their contents but also to correctly retrieve the items by specifying the category and/or the difficulty level. PKIP adapts the “categorization learning model” to improve the system’s categorization performance using the incoming question items. PKIP tool has an advantage over the traditional document categorization methods in that it can correctly categorize the question item which lacks keywords since it adopts the feature selection technique and support vector machine approach to item bank text categorization. In our initial experimentation, PKIP was designed and implemented to manage the Thai high primary mathematics question items. PKIP was tested and evaluated in terms of both system accuracy and user satisfaction. The evaluation result shows that the system accuracy is acceptable and PKIP satisfies the need of the users. 相似文献
80.
简论虚拟社会的主体、客体和主客体关系 总被引:1,自引:0,他引:1
人类社会进入21世纪之后,社会形式发生着巨大变化,以计算机技术为基础的信息技术推动着现代科技革命飞速发展,社会实践活动的形式发生着革命性变化,虚拟社会的出现对人类的实践活动提出了新的更高的要求,这些变化也对马克思主义哲学构成了巨大的挑战。 相似文献