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1.
声学课程是海洋技术专业和海洋测绘专业的一门基础核心课程,是一门渗透性、交叉性极强的应用技术学科,不管是在陆地上还是在海洋里,甚至在天上乃至太空都得到了非常广泛的应用。本人对声学课程进行了初步的思考,得到了一些体会,供教育工作者们参考。  相似文献   

2.
谈到声学,不少人认为这门学科只是与音乐或立体声有关。其实声学牵涉的范围非常广。大至大气、海洋、地壳,小至微观世界都有声波的传播。在国防、国民经济和人民生活的各个领域都有声学的研究与应用。声学既是一门老学科,又是一门新学  相似文献   

3.
声学是一门研究声音的发生、传播、接收以及声波与物质相互作用的科学。随着科学技术的发展,声学进入了各个应用技术领域。在现代工业、国民经济、国防建设、科学研究和日常生活的各个领域,无不和声学发生联系。因此声学是一门渗透性很强的学科。 声学技术的广泛应用,首先要归功于声波的物理特性。声波是机械振动在物质(气体、液体和固体)中  相似文献   

4.
结构力学是一门非常重要的专业基础课,文章介绍了现代教育技术在该门课程中的应用,并针对独立学院课程教学中存在的问题,进行研究探讨。  相似文献   

5.
熊举化 《科教文汇》2008,(35):89-89
《数控技术》课程是机电工程类各专业学生必修的一门专业基础课,数控技术是现代制造技术的核心,这门课程的改革与建设对于培养新世纪高素质应用型创新人才具有重要意义。文章基于此分析了信息技术在该课程教学中的应用,以期对于提高该课程的教学效果有所裨益。  相似文献   

6.
信号与系统这门专业基础课理论性较强,作为计算机应用技术专业的选修课程面临着教与学的一些困难.本文结合此课程的特点,在课程内容、教学方法、课堂管理以及课程考核等方面进行了初步的探索,并得到了一些经验与体会.  相似文献   

7.
随着微型计算机技术的飞速发展,微机系统已经在当今社会,特别是计算机控制、智能化、通讯等方面得到广泛的应用。为了适应实际的需要,高校将微机原理及应用作为计算机类、电子信息类等专业的一门专业基础课程。针对微机原理课程教学的现状,主要就微机原理课程教改的思路,以及就建立微机原理课程体系、优选教学内容、强化实践教学等方面进行了一些理论研究和探索。  相似文献   

8.
《内江科技》2016,(7):149-150
计算机网络技术课程是计算机应用技术的一门专业基础课程,本文介绍了高职计算机网络技术课程的建设的思路,结合杨凌职业技术学院的情况进行了该课程建设各个方面的探索。  相似文献   

9.
迟耀丹  杨佳 《科教文汇》2013,(28):55-56
“单片机原理与应用”课程是电子信息科学与技术专业一门重要的专业基础课,在专业课程体系中占据着重要的地位。本文从优秀课程建设的整体思路、师资队伍培养、教学内容的实施以及课程建设的成效几方面对“单片机原理与应用”这门课程在历时三年的时间里所开展的工作和取得的成效进行了汇报。  相似文献   

10.
《网页设计与制作》课程是一门高职院校计算机应用技术专业的一门专业必修课。本文先从教师和学生方面分析了现代教育模式下的高职课堂教学存在的问题,再从问题着手提出利于该课程教学的教学方法和教学策略。  相似文献   

11.
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said.  相似文献   

12.
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China's science enterprise by making S&T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party's Leading-member Group at CAS, which was held from 7 to 11 January in Beijing.  相似文献   

13.
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.  相似文献   

14.
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants."  相似文献   

15.
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.  相似文献   

16.
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.  相似文献   

17.
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.  相似文献   

18.
Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.  相似文献   

19.
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment.  相似文献   

20.
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.  相似文献   

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