Coronavirus disease(COVID-19):The need to maintain regular physical activity while taking precautions     

Peijie Chen  Lijuan Mao  George P.Nassis  Peter Harmer  Barbara E.Ainsworth  Fuzhong Li 《运动与健康科学(英文)》2020,9(2):103-104

The on-going Coronavirus disease(COVID-19)outbreak in China has become the world's leading health headline and is causing major panic and public concerns.On January 30,2020,the World Health Organization(WHO)declared that the new coronavirus outbreak is a public health emergency of international concern.1 The virus has already had a direct impact on more than 10 million people in the city of Wuhan and has reached other parts of China as well,posing a health threat of unknown magnitude globally.As of February 8,2020,WHO reported 34,886 confirmed cases of COVID-19 globally,with 34,589 of them occurring in China(including 6101 severe cases and 723 deaths).A total of 288 other confirmed cases(with 1 death)have been reported in 24 countries,including Japan,Australia,Germany,and United States.2 However,these daily estimates are expected to rise even higher as reports from health authorities in China3 are gathered and near real-time updates of the Johns Hopkins virus dashboard are made 4 The outbreak has caused governments in various countries to take swift and protective measures.In China,these included putting cities on lockdown,5 implementing travel wamings/bans and cancellations,6 extending national holidays,and closing schools and postponing classes7.  相似文献   

The Use of Augmented Reality Technology in Medical Specimen Museum Tours     

Atsushi Sugiura  Toshihiro Kitama  Masahiro Toyoura  Xiaoyang Mao 《Anatomical sciences education》2019,12(5):561-571

Human anatomical specimen museums are commonly used by medical, nursing, and paramedical students. Through dissection and prosection, the specimens housed in these museums allow students to appreciate the complex relationships of organs and structures in more detail than textbooks could provide. However, it may be difficult for students, particularly novices, to identify the various parts of these anatomical structures without additional explanations from a docent or supplemental illustrations. Recently, augmented reality (AR) has been used in many museum exhibits to display virtual objects in videos captured from the real world. This technology can significantly enhance the learning experience. In this study, three AR-based support systems for tours in medical specimen museums were developed, and their usability and effectiveness for learning were examined. The first system was constructed using an AR marker. This system could display virtual label information for specimens by capturing AR markers using a tablet camera. Individual AR markers were required for all specimens, but their presence in and on the prosected specimens could also be obtrusive. The second system was developed to set the specimen image itself as an image marker, as most specimens were displayed in cross section. Visitors could then obtain the label information presented by AR without any markers intruding on the display or anatomical specimens. The third system was comprised of a head-mounted display combined with a natural click interface. The system could provide visitors with an environment for the natural manipulation of virtual objects with future scalability.  相似文献   

关于地磁与空间微物理场及其应用系统研究的思考   总被引：1，自引：0，他引：1  

许小峰  孙涵  毛飞 《中国科学基金》2007,21(6):321-326

本文从地磁对地球科学研究及防灾减灾、资源利用与国民经济建设的影响与需求出发,简要介绍了地磁学、地磁测量仪器与传感器以及地磁在导航、空间天气、大气科学、日地关系等相关学科中应用的研究现状,提出了传感器与基础材料、地磁测量理论与技术、地磁和空间微物理场与地球系统关系、地磁理论在相关领域的研究设想,以及地磁和空间微物理场多要素一体化探测系统与公共信息共享平台建设及应用系统开发的设想,提出了推动地磁科学研究及产品与应用系统开发的几点建议,展示了地磁学研究的发展趋势与应用前景。  相似文献   

中国农村工业化及其环境与趋势分析   总被引：11，自引：0，他引：11  

申茂向祝华军  田志宏韩鲁佳 《中国软科学》2005,(10):33-41

利用统计数据定量研究我国农村工业化的发展状况，归纳了农村乡镇企业发展的特点；提出现阶段我国农村工业化总体上仍然处于工业一农业阶段，在空间上具有显著的区域不平衡性；虽然农村工业化对我国经济社会发展作出了巨大贡献，但却是一条高成本、高产出、低效益的发展道路。最后在研究当前发展环境的基础上，分析了农村工业化进一步发展的趋势。  相似文献   

短跗星花金龟体表元素的X射线荧光光谱检测     

孙家美  毛振伟 《科技通报》1997,13(6):410-412,418

采用Ｘ射线荧光光谱仪对体表为古铜色并有金属光泽的短跗星花金龟进行了体表（背、腹面）无损多元素定性检测。样品灰化后，对其灰又进行了多元素定性检测。结果发现，此种金龟子体表所呈现的金属光泽与虫体含有较多的Ｃｕ、Ｚｎ有关。  相似文献   

UPS配电系统的可靠性分析   总被引：1，自引：0，他引：1  

毛世昌 《科技广场》2006,(7):115-116

本文主要阐述如何使UPS配电系统达到99.99%的可用性标准,以满足银监会、证交所、航管、IDC等重要的数据中心对配电系统安全性的要求。  相似文献   

国有企业应对外资并购的策略分析   总被引：1，自引：0，他引：1  

柳建华  彭迪云  毛小民 《科技广场》2004,(9):85-87

跨国并购是经济全球化发展的一个趋势．随着中国投资环境的改善，将有更多外资企业并购中国企业以满足其全球化战略的需要。这为中国的国企改革提供了一个契机。本文分析了当前对外资并购的认识误区，也提出了国有企业在应对外资并购挑战的基础上来充分利用机遇发展自身的策略。  相似文献   

中国沙拐枣属新植物   总被引：1，自引：0，他引：1  

毛祖美 《中国科学院研究生院学报》1984,22(2):148-150

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三台木材加工厂建设用地地质灾害危险性评估     

孙文明  李虎杰  于远忠 《中国科技信息》2006,(14):36-37

三台县木材加工场建设工程位于三台县东塔镇罗家大石包。建设用地地质环境条件一般，存在的主要地质灾害有崩滑和地裂隙。综合分析了引起地质灾害的主要因素；详细分析各个因素的基础上做出了地质灾害危险性现状评价和地质灾害危险性预测评价，为建设用地的工程建设适宜性提供了依据；并对工程建设可能发生或诱发、加剧的地质灾害提出防治措施和建议。  相似文献   

我国科技期刊文献引文的聚散性分析   总被引：1，自引：0，他引：1  

乔文明 《情报科学》2001,19(11):1186-1190

以《中文核心期刊要目总览》2000版为依据，对其中的科技期刊文献的引文进行统计分析。结果表明，科技文献引文具有明显的聚散性，聚散程度的高低与学科性质有关。采用引文分析方法揭示科技期刊文献的分布规律并确定核心期刊，最关键的是要选好一定时域内最具有代表性的一组期刊作为引文统计源，其次是对于不同的学科，划定核心区，应采用不同的引文量比例。  相似文献