Accurate and broadband manipulations of harmonic amplitudes and phases to reach 256 QAM millimeter-wave wireless communications by time-domain digital coding metasurface

We propose a theoretical mechanism and new coding strategy to realize extremely accurate manipulations of nonlinear electromagnetic harmonics in ultrawide frequ...     

Xu Beihong and the New China: thoughts centered on the painting At the World Peace Congress

This essay analyses a politically tinged painting by Xu Beihong (1895–1953), a representative modern Chinese painter. He composed the work in 1949, just before the founding of the People’s Republic of China, or the New China. In this article’s discussion of the perplexing work, the author attempts to unveil Xu’s understanding of revolution and of the relationship between art and politics, in relation to his difficulties in exploring and practicing art in the early Republic period (1912–1949). Based on this, the author discusses the painter’s mindset in the social and political context of the New China. She also tries to reveal that Xu’s art practices were restrained by the realities he was in – a crucial point to understanding his achievements and predicaments. As an artist who resisted the western modernism in the course of modernization, and who idealistically pursued the highest good and beauty through “realist” approaches and historical expressions, Xu’s predicaments interestingly reflect the complicated relationship between art and revolution in China’s road to modernization, and provide a foundation for further explorations into the core issues and the particularity of modern Chinese paintings.     

成人学习与教育提升健康与幸福,促进社会和谐发展——专访联合国教科文组织终身学习研究所亚历山德鲁·盖纳博士

世界各国均已认识到,成人学习与教育在促进健康和幸福、劳动力市场、社会包容和共同体生活等方面发挥着重要作用.与此同时,全球公民一致认为教育是一种人权,自身也存在一种价值.成人学习与教育能给个体公民、家庭和共同体带来好处.成人学习与教育帮助公民在公民社会和政治生活中变得更加活跃、多样性包容、更多环境问题意识.它还能促进从艺术到精神层面的文化发展,帮助公民在塑造社会的过程中更加多才多艺和足智多谋.我们有幸对联合国教科文组织终身学习研究所亚历山德鲁·盖纳(Alexandru Gaina)博士进行了专访,分享其对成人学习与教育方面的思考与见解.亚历山德鲁·盖纳博士满腔热情地关注健康、幸福和跨领域问题,特别强调成人学习和教育在这些领域的作用,促成全球、区域和国家层面的利益相关者协同解决全球关注的问题,实现共同目标.目前,盖纳博士是联合国教科文组织终身学习研究所成人学习和教育团队成员,其主要任务之一是组织第六届成人教育国际大会的中期回顾会议(Mid-Term Review of the Sixth International Conference on Adult Learning and Education,CONFINTEA-VI Mid-Term Review).     

高职英语青年教师教学能力提升路径探究

目前青年教师是高职院校英语教学工作的主力军.其教学能力水平直接影响着高职英语教学效果和质量.通过简述高职英语青年教师应具备教学能力,分析她们教学现状,提出了:公开课教学是青年教师提升教学能力的必经途径;传帮带是青年教师提升教学能力的传统途径;微课教学是网络时代提升青年教师教学能力的新途径;高职英语口语技能大赛是青年教师提升教学能力的重要途径;教师学习共同体是青年教师提升教学能力的有效途径.     

Meet In Beijing Arts Festival Gets Under Way

<正>From April 30 to May 28, artists from around the world will present an art gala for the audience in Beijing. This year, the annual Meet In Beijing Arts Festival will highlight the interaction between artists and audiences, with an aim to promote diversity of art forms and cooperation among arts groups, arts institutions, government agencies and arts professionals and provide opportunities for their sustainable development.     

“Great Romance of the Three Kingdoms”Displayed in Beijing

<正>In celebration of the 30th anniversary of the China-Japan Treaty of Peace and Friendship, the exhibition "Great Romance of the Three Kingdoms", presented by Art Exhibition China, traveled to seven Japanese cities including     

华君武结缘楼外楼

那枝用作战斗利器挥舞一生的画笔,永远地停下了。2010年6月13日上午9点,漫画大师华君武在北京友谊医院离世。＂我是杭州人,1915年出生于杭州祖庙巷。＂去看2007年《漫画一生·华君武作品展》的人们,一进展厅就看见一代艺术大师向每个老乡的介绍词。     

钢丝的切变模量与扭转角度关系的研究

研究了钢丝的切变模量随其扭转角度变化而变化的情况,观察到扭转角大于某一角度时,切变模量趋于定值的规律,得出扭摆实验准确测量的方法,此测量方法在其他许多力学实验中也可应用。     

美国联邦政府科研经费监督管理及其启示

本文通过分析美国联邦政府科研经费的管理模式,监管方式、方法,及其成功的经验,以期为我国科研经费的监督和管理提供借鉴。     

社体专业引入本科导师制的实施理论探析——以成都理工大学为例

文章对本科导师制在成都理工大学社会体育专业中实施的目的、意义及自身优势做了简要的分析论证,并实施本科导师制之前所应注意的师生认知、模式选择、导师职责以及考核评价等几个关键问题进行了探讨和建议,以保障本科导师制在社体专业的顺利实施。