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中修复重建外科专业委员会骨肿瘤专业学组，副组长。

刘忠军，北京大学第三医院大外科主任、脊柱外科研究所所长，骨科教授，博士生导师，主任医师 主要学术及社会兼职：AO国际脊柱外科学会中国理事会前任主委；北京大学医学部学术委员会委员；中国康复医学会脊柱脊髓专业委员会名誉主委；中国医师协会骨科分会副会长兼3D打印专业委员会主委；中国3D打印产业技术联盟医学理事会执行副主席；中华医学会骨科分会常委；中国脊柱脊髓杂志副主编；中国微创外科杂志副主编；中央保健委员会会诊专家；第十一届、十二届、十三届全国人大代表。

蔡宏，北京大学第三医院骨科主任医师，副教授，医学博士。主要从事人工关节置换，先后在韩国、加拿大、美国等多国学习。致力于人工关节假体及相关产品研发，系统性开展3D打印在骨科领域的基础与临床研究。主导参与研发的3D打印植入物成为国内首个获得CFDA注册许可的产品。发表学术论文二十余篇，其中SCI论文十余篇，获北京市科学技术奖一等奖、中国医院协会医院科技创新奖一等奖各一项，主持国家重点研发计划项目一项。 Hong Cai, chief physician and associate professor of Orthopaedics Department of Peking University Third Hospital. Dr. Cai received his M.D in the Specialty of Surgery (Orthopaedics) from Peking University Health Science Center. He studied in Seoul National University of Korea, University of Western Ontario of Canada and Medical Center of Rush University of Chicago as clinical fellow. He mainly engages in artificial joint replacement, devotes himself to the research and development of prosthetic at present , and systematically carries out 3D printing in medical field, especially the studies on the foundation and clinical application in Orthopaedics. He takes part in the research and development of several types of prosthetic replacement and research on clinical registration and has published many papers and books related to Orthopaedics. He is Chairman of Wu Jieping Medical Foundation Union of Young Orthopedists, an Executive Director of Arthroplasty Society in Asia, a commit member of Youth Committee of Chinese Association of Orthopaedics Surgeon, a member of National Technical Committee on Additive Manufacturing of Standardization Administration of China (SAC/TC562) and associate editor of Annals of Joint.

中科院外籍院士、欧洲科学院院士、加拿大工程院院士、韩国科学技术院外籍院士和台湾中研院院士，中科院北京纳米能源与系统研究所 研究方向： 压电电子学，纳米发电机 报告题目： The Physics of Contact-electrification and its Impact to the Energy for the New Era 个人简介： 王中林教授，是佐治亚理工学院终身校董事讲席教授、Hightower终身讲席教授、中科院北京纳米能源与系统研究所所长和首席科学家，中科院外籍院士、欧洲科学院院士、加拿大工程院院士、韩国科学技术院外籍院士和台湾中研院院士。2015年、2017年诺贝尔奖被提名者，2018能源界诺贝尔奖——埃尼奖（Eni Award）的获奖者，国际公认的纳米科学与技术领域的领军型科学家。此外，王院士是国际纳米能源领域著名刊物 Nano Energy （最新IF：15.30）的创刊主编和现任主编。 王院士是纳米能源研究领域的奠基人，首次发明了纳米发电机和自驱动纳米系统技术，被誉为“纳米发电机之父”。他发明了压电纳米发电机和摩擦纳米发电机，提出自驱动系统和蓝色能源的原创大概念，将纳米能源称为“新时代的能源”。王中林院士开创了压电电子学和压电光电子学两大学科，得到国际学界的广泛接受和认可。此外，王中林院士还引领了第三代半导体纳米材料的研究，使氧化锌纳米结构成为与碳纳米管和硅纳米线同等重要的一类材料研究体系。 王中林教授科研成果丰硕，已在国际一流刊物上发表1500多篇论文（其中发表在《科学》、《自然》及其子刊上的文章50余篇），拥有100余项专利、7部专著和20余部主编书籍、会议文集。目前根据Google Scholar公开数据，王中林教授论文引用近20万次，标志影响力的H指数是226，目前在全球纳米科学与纳米技术领域总引用数和H指数排名世界第一。 Contact electrification (triboelectrification) effect, the most fundamental effect for electricity, has been known for over 2600 years since ancient Greek time, but its scientific mechanism remains unclear. The study of triboelectrification is recently revived due to the invention of the triboelectric nanogenerators (TENGs) by using the coupling of triboelectrification and electrostatic induction effects, which is the most effective approach for converting tiny mechanical energy into electricity for powering small sensors. TENG is playing a vitally important role in the distributed energy and self-powered systems, with applications in internet of things, environmental/infrastructural monitoring, medical science, environmental science and security. In this talk, we first present the physical mechanism of triboelectrification for general materials. The charge transfers between a case such as a metal-dielectric was attributed to the electron transfer between the filled states up to the Fermi level as governed by the Fermi-Dirac function. For the case of dielectric-dielectric, the charge transfer was attributed to between the surface states of the two materials. For a general case that the system cannot be described by a state surface model, an electron cloud-potential well model is proposed based on the overlap of electron wave functions across two atoms, which can be generally applied to explain all types of CE in conventional materials. Secondly, the fundamental theory of the TENGs is explored based on the Maxwell equations. In the Maxwell’s displacement current proposed in 1861, the term gives the birth of electromagnetic wave, which is the foundation of wireless communication, radar and later the information technology. Our study indicates that, owing to the presence of surface polarization charges present on the surfaces of the dielectric media in TENG, an additional term should be added in the Maxwell’s displacement current, which is the output electric current of the TENG. Therefore, our TENGs are the applications of Maxwell’s displacement current in energy and sensors. TENGs have three major application fields: micro/nano-power source, self-powered sensors and blue energy. We will present the applications of the TENGs for harvesting all kind mechanical energy that is available but wasted in our daily life, such as human motion, walking, vibration, mechanical triggering, rotating tire, wind, flowing water and more. Then, we will illustrate the networks based on triboelectric TENGs for harvesting ocean water wave energy, for exploring its possibility as a sustainable large-scale blue energy. Lastly, we will show that TENGs as self-powered sensors for actively detecting the static and dynamic processes arising from mechanical agitation using the voltage and current output signals. [1] C.Xu†, Y. Zi†, A.C. Wang†, H. Zou, Y. Dai, Xu He, P. Wang, .C. Wang, P. Feng, D. Li, Z.L. Wang* “On Electron Transfer Mechanism in Contact-Electrification Effect”, Adv. Mater. 30 (2018) 1706790. [2] Z.L. Wang, “On Maxwell’s displacement current for energy and sensors: the origin of nanogenerators”, Materials Today, 20 (2017) 74-82. [3] Z.L. Wang, L. Lin, J. Chen. S.M. Niu, Y.L. Zi “Triboelectric Nanogenerators”, Springer, 2016. http://www.springer.com/us/book/9783319400389

研究方向： 空间科学与应用 报告题目： 中国空间科技发展展望 报告摘要： 查看详情 个人简介： 查看详情

11年互联网从业经验，2016年加入VIPKID，负责用户端研发团队，在10倍+/年的业务增长同时带领团队完成业内多项的技术创新。张燕静是移动搜索、移动广告领域的资深专家。2007年加入百度，作为百度移动搜索高级经理，完成移动搜索技术团队组建，并且带领团队超越PC，成为搜索第一入口。2013年作为移动广告团队负责人加入阿里，从0开始组建阿里移动广告体系。

沈悦时博士在亚马逊的全资子公司Twitch担任Principal Research Engineer。他带领的研发团队负责Twitch核心视频技术的研发，职责涵盖直播视频转码、ABR播放算法、多平台播放兼容性、画面质量、时延等。沈博士同时是AOM（Alliance of Open media）视频编码协议AV1中SWITCH_FRAME的发明者，他发表、申请超过15项技术专利。在加入Twitch之前，沈博士分别就职、服务于多个数字电视设备公司（GD Mediware，Ambarella，Harmonic， Ericsson TV）以及开创云游戏产业的初创企业OnLive。在这些公司，他主导、参与开发多个广泛应用的H.264编码、转码、非线性编辑和实时广告插播产品，以及在公共互联网上超低时延视频传输的云游戏核心技术。

多年音视频行业从业人员，先后就职于Thomson Research，Corel Inc., 盛大创新院，酷6网，并联合创业手机直播平台易直播，参与研发的软件包括Thomson Aurora Browsing System, Edius，会声会影，WinDVD，以及微酷、短酷，易直播等移动短视频、移动直播app等产品，并设计和研发了在线视频编辑系统、视频转码系统等多媒体服务系统。拥有美国、欧洲及中国多项多媒体相关技术专利，并多次重要国际学术会议中发表学术文章。目前就职于上海享互网络科技有限公司，任技术部负责人，负责CCtalk产品线的开发与维护。