Transient analysis of steam generator in PWR nuclear power plant     

M.Tahir Khaleeq Lang Wengpeng He Guoseng 《上海大学学报(英文版)》1998,2(2):127-134

ＮｏｍｅｎｃｌａｔｕｒｅＡＡｒｅａ（ｍ２）ＤｈＨｙｄｒａｕｌｉｃＤｉａｍｅｔｅｒ（ｍ）ＥＥｎｅｒｇｙＣｏｎｔｅｎｔ（Ｊ）ｆＰｒｅｓｓｕｒｅＬｏｓｓＣｏｅｆｉｃｉｅｎｔαＶｏｉｄＦｒａｃｔｉｏｎＨＳｐｅｃｉｆｉｃＥｎｔｈａｌｐｙ（Ｊ／ｋｇ）ＩＩｎｅｒｔ...  相似文献   

α次积分半群的Trotter—Kato定理     

郎开禄  杨光俊 《楚雄师范学院学报》1998,(3)

在本文中我们讨论了α次积分半群的收敛与逼近,获得了α次积分半群的Trotter—Kato定理,并将其结果应用于Banach空间中完全二阶微分方程的讨论。  相似文献   

计算机网络安全中黑客入侵分析及防范对策研究     

李浪 《湖南科技学院学报》2005,26(5):147-149

本文对计算机网络安全中黑客入侵的主要手段进行了概括和分类,并提出了相应的解决对策;并对黑客入侵提出了整体防范策略和措施。  相似文献   

长尾理论在高校图书馆馆际互借服务中的应用   总被引：1，自引：0，他引：1  

邓浪 《情报探索》2010,(5):27-28

阐述了高校图书馆馆际互借中的长尾现象及从中得到的启示.  相似文献   

浅谈基于Partnering的工程项目管理模式     

黄永华  习庆  吴浪 《科技广场》2010,(4):162-163

工程项目管理模式是项目取得成功的关键因素之一,它随着社会发展而不断进步.本文介绍了一种重要的工程项目经营管理模式--Partnering模式的基本概念、几个主体及几大要素,将这一新颖的管理模武应用于工程实践之中,具有重要意义.  相似文献   

美的呼唤——从思想美上分析华兹华斯与雪莱的诗作     

郎琴芳  查王龙 《铜陵职业技术学院学报》2009,8(4):53-55

浪漫主义文学是英国文学史上的一树奇葩,华兹华斯是浪漫主义的开拓者、引路人,而雪莱则是浪漫主义文学巅峰时刻的最重要诗人,他们的作用可谓举足轻重。本文通过从他们诗歌以至人生思想的演变中所表现的价值观进行比较分析,指出这两位浪漫主义诗人各自诗歌思想的演变,即华兹华斯对革命由激情到失望,而雪莱则一如既往,奋斗不息。这有助于读者将诗人的诗歌与思想相联系,进一步了解他们诗歌的社会意义,评价两位杰出诗人在诗歌创作上的独特成就。  相似文献   

通向自由的艰难之路——我国开放存取的现状分析   总被引：3，自引：0，他引：3  

郎筠  韩亮 《图书馆建设》2009,(7)

目前,多数研究误将我国开放存取发展缓慢的原因归结为知识产权对开放存取的威胁、质量控制的制约、付费模式脱离实际等因素.实质上,政府、机构、期刊和研究者对开放存取的认知度过低才是问题的关键.基于问题的核心因素,我国开放存取的发展需要政府采取有效的措施加以引导、机构的认可与重视、学术期刊的积极参与、研究者的支持.  相似文献   

Facilitating learning in large lecture classes: testing the "teaching team" approach to peer learning     

Stanger-Hall KF  Lang S  Maas M 《CBE life sciences education》2010,9(4):489-503

We tested the effect of voluntary peer-facilitated study groups on student learning in large introductory biology lecture classes. The peer facilitators (preceptors) were trained as part of a Teaching Team (faculty, graduate assistants, and preceptors) by faculty and Learning Center staff. Each preceptor offered one weekly study group to all students in the class. All individual study groups were similar in that they applied active-learning strategies to the class material, but they differed in the actual topics or questions discussed, which were chosen by the individual study groups. Study group participation was correlated with reduced failing grades and course dropout rates in both semesters, and participants scored better on the final exam and earned higher course grades than nonparticipants. In the spring semester the higher scores were clearly due to a significant study group effect beyond ability (grade point average). In contrast, the fall study groups had a small but nonsignificant effect after accounting for student ability. We discuss the differences between the two semesters and offer suggestions on how to implement teaching teams to optimize learning outcomes, including student feedback on study groups.  相似文献   

Evaluating students’ perceptions and attitudes toward computer-mediated project-based learning environment: A case study     

Ling Ying Britta Seet  Choon Lang Quek 《Learning Environments Research》2010,13(2):173-185

This research investigated 68 secondary school students’ perceptions of their computer-mediated project-based learning environment and their attitudes towards Project Work (PW) using two instruments—Project Work Classroom Learning Environment Questionnaire (PWCLEQ) and Project Work Related Attitudes Instrument (PWRAI). In this project-based learning environment, students experienced a face-to-face classroom setting and e-learning by using a synchronous computer-mediated communication (CMC) tool called ‘iCollaborate’ for online communication and project collaboration with peers from other countries. The PWCLEQ and PWRAI instruments were used to evaluate the computer-mediated project-based learning environment using students’ perceptions of the learning environment and to further investigate how their perceptions might affect their attitudes towards PW lessons. Students perceived the computer-mediated project-based learning environment favourably but they preferred to experience more Material Environment and more Open-Endedness and Social Presence. Simple correlation analysis revealed that all environment dimensions were significantly and positively related to the students’ attitudes towards PW, while multiple regression analysis indicated that two scales, Instructor Support and Social Presence, were the strongest predictors of attitudes towards PW lessons.  相似文献   

不为技巧不失技巧——黄安伦《g小调钢琴协奏曲》的创作风格     

李浪 《四川师范学院学报》2010,(4):99-102

黄安伦是当代华人新音乐的代表人物,其作品《g小调第一钢琴协奏曲》将浓郁的中国民族情结与典型的西方传统协奏曲结构形式融为一体,构思宏达,技巧娴熟,风格质朴。这一创作风格虽不为技巧,但不失技巧,既展现了作品形神兼备的特殊魅力,又表达了作者独特的审美视角及对故土、对民族、对人类的永恒之爱。  相似文献