防止汽机甩负荷过程中给水泵汽蚀的条件和措施

根据汽机甩负荷造成给水泵汽蚀的原因及危害 ,从计算除氧器暂态过程中给水泵入口汽蚀余量的最大降落值入手 ,分析防止给水泵汽蚀的条件 ,提出预防措施。     

浅谈水域富营养化的形成与防治

对水体富营养化的形成以及防治进行简要的概括和总结 ,认为富营养化应该引起重视     

茂名近岸海水中有机污染监测及趋势分析

2003~2005年茂名近海海域的有机污染物监测结果表明,茂名近岸海水养殖区和近海海域的有机污染物均未超过国家海洋和渔业用水标准。其中2003年和2004年变化较小,2005年下降较为明显,落潮期有机物污染比涨潮期相对严重,秋季海水中有机物污染较为严重,春季和夏季污染程度较低。有机物污染呈逐年下降的趋势,但是养殖区水质已受到近岸海水污染的影响。     

浅谈大学生竞争道德规范的内容及养成

目前，有些大学生对遵守竞争道德规范的意识不强，出现了“不良竞争”心理和行为，因此，对大学生进行竞争道德规范教育很有必要。大学生必须遵守诚实守信、集体主义、公正平等、互相协作、奖优罚劣的竞争道德规范的内容。培养大学生自觉遵守竞争道德规范应开展竞争道德规范的实践活动，积极营造诚信氛围，规范竞争的激励机制，加强对大学生竞争道德规范建设的指导。     

析托尼·莫里森小说中隐喻的运用

美国黑人女作家托尼.莫里森的小说创作具有鲜明的个人特征。在作品人物和环境的命名、结构的组织、内容的取舍等方面,莫里森善于运用隐喻来解构白人价值观,重构黑人的历史和文化价值,展示了黑人在过去和现在所遭受的奴役、歧视,形成了自己独具特色的叙述风格,使美国黑人女性文学形成声势并走向成熟。     

明清以前我国农村基础设施建设的历史演进

随着经济的持续高速发展,我国的农村基础设施供给不足已成为制约农村经济发展和影响农民生活的主要“瓶颈”之一。如何有效地增加农村基础设施投资,改善农业生产条件和农民生活环境成了当前讨论的热点话题。客观地总结我国明清以前农村基础设施建设的历史实践,对当前发展现代农业和建设社会主义新农村具有借鉴意义。     

略论弗洛斯特的艺术风格

美国诗人弗洛斯特以主张以旧创新的现代性风格而著称。他在继承英诗传统的基础上 ,采用普通的题材 ,简练的语言 ,优美的韵律 ,深刻昭示了人生现实与理想的对立统一。诗人以源于自然的传统表现手法 ,呈现出独具特色的现实主义内容     

Attributes and Frames of the Aurora Shootings

The present study examined frames and second-level agenda-setting attributes used by national and local newspapers to cover the 2012 Aurora, Colorado shootings. Unlike research examining coverage of school shootings, this study examined a mass shooting that did not occur at a school. Both newspaper types published a similar number of articles—though national articles tended to be longer—and virtually stopped coverage after 18 days. While previous coverage tended to focus on shootings’ societal implications, Aurora coverage focused more on individuals involved in the time immediately surrounding the shootings. National papers focused on the gunman, while the local press tended to focus on victims. Mass shootings in general tend to be salient news items, but the present study further shows news outlets may now focus on incidents’ specifics instead of common characteristics they might share, perhaps because audiences have an existing understanding of them. The shootings were framed in terms of gun control; national newspapers used this frame more often than did local newspapers. Both newspaper types tended to discuss gun control as directly related to the Aurora shootings, rather than as a societal or continuing need. Results offer further evidence that second-level agenda-setting and framing are distinct concepts.     

Web Design Trends in Academic Libraries—A Longitudinal Study

This study examines several key design elements of 37 academic library Web sites (members of the Association of Southeastern Research Libraries) and how they have changed between 2012 and 2015. While several studies have reviewed library Web sites looking for common design elements and content, the present work may be the first to look at the design elements of a large group of library Web sites over time. This study has two main goals: to present an objective analysis of the navigation and search interface designs at research university library Web sites, and to assess the usage of Web-scale discovery systems and content management systems in libraries. Other areas explored include when sites were most recently redesigned and whether sites have adopted a mobile-friendly, responsive design. Notable findings include a very high usage of Web-scale discovery systems, an increasing adoption of open source content management systems, and increasing implementation of responsive design. Also noted was a strong and growing standardization in navigation design. This study concludes with a review of the trends and discussion of current design patterns in academic library Web sites.     

论学术研究在主题展览中的基础性作用 ——以“鸦片战争”展览为例

历史文化类展览的主题,须从历史文化事实中提取最具代表性、影响力和教育意义的概念,并以丰富的历史文化内容来表达,通过承载着这些历史文化信息的展品和布展设计来表现。因此,学术研究是博物馆展览设计的基石,研究的广度和深度直接影响展览的科学品质。鸦片战争博物馆针对本馆的展览选题,搭建了包括馆刊、专著、论坛在内的多种学术平台,孵化了一批学术研究成果,并运用于“鸦片战争”展览,极大地深化了展览主题、丰富了展示内涵,并促成了形式与内容的较好融合,集中体现了“内容为王”的办展理念。