变频调速器在齐鲁石化供排水厂的推广与应用

近年来低压变频器已得到广大企业用户的认可,并显示出它的节能效果,文章介绍了变频器在齐鲁石化水厂的应用,对比改造前后的工作状况和在节能、节电、提高自动化水平及电路设计等方面的功能和特点.     

立方氮化硼的应用与机械加工的技术进步

立方氮化硼内其具有“三高”特性，而成为一种理想的硬磨料得以发展，着重介绍了立方氮化硼磨具和刀具及其推广应用，并阐述其技术的发展对机械加工技术的进步具有重要的意义。     

INVESTIGATION OF STATUS AND DEMAND ON PUBLIC SERVICE OF EARTHQUAKE DISASTER MITIGATION IN CHINA

In order to make a comprehensive and systematic evaluation of the status and demands of public service of earthquake disaster mitigation, we launched an investigation with Social Opinion Polling Center of National Bureau of Statistics on the current situation of public service of earthquake disaster mitigation and the demands for it in 2018. The investigation was conducted for 18~75-year-old residents for both urban and rural areas in 31 provinces of China mainland using the Computer Assisted Telephone Interview(CATI)method and 20 078 valid samples were received in total. The questionnaire mainly includes two parts: the current situation assessment and the demand survey. The assessment of public service status consists of five indicators: earthquake emergency drill, knowledge publicity of earthquake prevention and disaster reduction, acquisition of earthquake information, reliability of information released by earthquake agencies, and overall satisfaction. The results indicate that only 27.4% of public have participated the earthquake emergency drill, and 73.5% of public have learned some knowledge about earthquake prevention and disaster reduction in different level. It shows that rural residents have a lower level of scientific knowledge of earthquake disaster mitigation although the rural residents have a higher level of satisfaction. Meanwhile, 82.9% of the public are very concerned about earthquake-related information, and the earthquake information acquisition convenience score is 81.51 points(the full score is 100 points). At present, TV is still the most popular way to obtain the earthquake-related information, besides that, network and the new media app such as Wechat and Weibo play a more and more important role. In terms of the reliability of official information published by the earthquake administration, the score is 83.69 points which indicates that the public tend to believe in official departments. Furthermore, the degree of satisfaction evaluation of public service of earthquake disaster mitigation is marked 76.44 points which shows that there is still much room for improvement. The more educated the public, the less satisfied they are with the public service of earthquake prevention and disaster reduction. The results also show that 51.81% of the public are willing to obtain earthquake warning information at their own expense. As for the demand, the most expectative services for the public are post-earthquake rescue and reconstruction, earthquake warning, and house earthquake resilience test. The results of the investigation may provide some reference for the government to provide better services of earthquake disaster mitigation and to make scientific knowledge popularization in a more scientific way.     

Taylor定理余项中θ的渐近性和拓广

给出带有m-1项断裂项n+m阶Taylor定理余项中θ的渐近估计,其估计式为 .利用该估计式将Taylor定理推广为 ,其中余项 .最后举例说明该推广在近似计算中的优越性。     

运用气象影视节目强化气象科普宣传

通过对目前气象科普知识宣传现状的分析,找出存在的问题和电视气象节目气象科普宣传的优势,提出强化电视气象节目气象科普宣传的建议,为我们搞好气象科技服务打下良好的社会基础.     

地质学领域科研人员参与科普：现状调查与促进建议

地质学领域科研人员参与科普对地质学科发展、科普高质量发展和经济社会发展有着重要的推动作用。调查结果显示,大多数地质学领域科研人员认可科普的作用和意义,愿意积极参与科普活动。然而,保障力度不够、传播渠道不畅、科普内容不深入、科普能力不均衡问题相对突出。增强地质科研单位科普责任意识,强化相关科协和学会的职能,加强晋升激励、奖酬激励及考核激励体系建设,加大地质科普技能培训和经验交流,引导地质科研人员提升科普能力,是促进地质学领域科研人员参与科普的关键。     

中国地质学会公布第三届科普奖评选结果

为推动中国地质学会地学科普研学工作的开展,根据 《中国地质学会精品地学研学路线、课程评选办法(试行)》, 学会组织开展了第二批精品地学研学路线、第一批精品地学 研学课程的申报、推荐和评审工作。     

地震科普视频点播系统的设计与实现

地震的科普知识是公众关心的内容,为了更好地向公众普及地震科普知识,利用流媒体技术设计了基于流媒体技术的地震科普视频点播系统。主要介绍了地震科普视频点播系统的系统设计、系统实现的关键技术以及在地震行业中的应用。     

“Digital earth” in support of an online oceanic educational public service and popularization

According to the initial vision of "digital earth" (DE), the public should constitute a significant proportion of its users. However, to date, most of the studies and applications have focused on science, the private sector and government. A DE-supported online oceanic educational public service and popularization system, iOcean, is studied. First, the vision for the public’s engagement with "digital ocean" is described: an analysis is presented from four aspects, i.e., the space dimension, the time dimension, the state dimension and its relationship with human beings. Second, the technical framework of iOcean is discussed, including data updating and model computing, the data, the function, and the application layers. Third, two key technologies are studied in detail that will enable the construction of iOcean. More than half a million public viewers have used the current version’s website. Practical demonstrations show that iOcean can bring virtual oceans to web browsers and desktops and construct a bridge between government departments and the general public.     

上海市学生人群防震减灾科普工作现状调查研究——以初中生群体为例

为了全面系统评价上海市学生人群的防震减灾科普效果,准确了解其科普需求,课题组在2014年下半年选取上海市某初级中学的部分学生作为示例,从科普知识的认知程度、需求与认知偏好、对宣传工作满意度评价、科普教育在学校开展的情况这四个方面进行问卷调查,以便及时总结经验,为今后在该人群中更加科学、高效地开展防震减灾科普宣传工作打下坚实的基础。