无标题

报告题目：

考古纪事：安阳商代古城的发现与研究

报告人：

唐际根

报告时间：

2015-12-22 15:30

报告地点：

清华大学熊知行楼211会议室

主办单位：

社科学院人类学与民族学研究中心

报告题目：

材料院《材料科学论坛》：A PMI & Edge Plasma Research Program for Fusion Energy

报告人：

Prof. G.R. Tynan

报告时间：

2015-12-18 10:00

报告地点：

清华大学材料院学术报告厅（逸夫技术科学楼1-205）

主办单位：

材料院《材料科学论坛》联系人：张弛 老师 62797603

简介：

Abstract The design, construction and operation of next-step fusion energy devices such as the CFETR require solutions to a number of plasma-material interaction (PMI) challenges. These include prediction and management of high particle and heat fluxes to the divertor target, achievement of very low target and wall erosion rates, very low tritium retention rates in radiation-damaged materials, development of radiation-damage resistant wall and target materials with adequate lifetimes.  We summarize current efforts underway in laboratory-scale experiments and confinement devices, outline key missing elements in these current efforts and then motivate new work that could be carried out in China via a collaboration between universities and larger institutes using a mix of novel lab-scale facilities, development of in-situ PMI diagnostics, and coordinated work on confinement devices.

George R. Tynan Associate Dean, Jacobs School of Engineering Professor, Mechanical and Aerospace Engineering Faculty, Center for Energy Research Basic and applied plasma physics. Professor Tynan’s current research is focused on the plasma physics of controlled nuclear fusion as an energy source. He studies the fundamental physics of turbulent transport in hot confined plasmas using both smaller scaled laboratory plasma devices as well as large scale fusion experiments located around the world. In addition, he is investigating how solid material surfaces interact with the boundary region of fusion plasmas, and how the materials are modified by that interaction. He is also interested in the larger issue of transitioning to a sustainable energy economy based upon a mixture of efficient end use technologies, large scale deployment of renewable energy sources, and incorporation of a new generation of nuclear technologies such as advanced fission and fusion reactor systems. He is preparing a textbook on these topics to introduce science and engineering students to this critical issue. Capsule Bio: George R. Tynan received his Ph.D. in 1991 from the Department of Mechanical, Aerospace, and Nuclear Engineering at the University of California, Los Angeles. He then spent several years studying the effect of sheared flows on plasma turbulence on experiments located in the Federal Republic of Germany and at Princeton Plasma Physics Laboratory. He then worked in industry developing plasma sources for use in investigating the creation of nano-meter scale semiconductor circuits, and joined the UCSD faculty in 1999.

报告题目：

Quantum Critical Fluctuations Leading to Strange Metals in 2D Metallic Anti-ferromagnets, Ferromagnets and in the Cuprates

报告人：

Chandra Varma

报告时间：

2015-12-21 14:30

报告地点：

理科楼三楼报告厅（C302）

主办单位：

量子物质科学协同创新中心&物理系

简介：

Models for metallic anti-ferromagnets map to the dissipative XY model as doXY ferromagnets, the superconductor-insulator transition, and the model for

loop-current order in Cuprates. The spectral function of the quantum-critical

fluctuations for this model in 2D for a range of parameters is determined by

topological defects – instantons and 2D vortices; it is a separable function of

space and time, with a 1/τ dependence at criticality. The marginal fermi-liquid

properties for the fermions follow from coupling to such fluctuations.

These fluctuations are directly measured by inelastic neutron scattering in the

quantum-critical region of the new Fe- based compounds, in a 2D ferromagnet

and in heavy-Fermions, and deduced in cuprates through analysis of ARPES.

ARPES also reveals the coupling function of the fermions to the fluctuations

so as to give nearly angle-independent normal self-energy but d-wave pairing

energy.

报告题目:

诱发突变与作物改良

　报告人:

刘录祥 研究员 中国农科院作物科学研究所

报告时间:

2015-12-18 14:00-15:00

报告地点:

化学工程系工物馆 326 会议室

主办单位:

化学工程系

工业生物催化教育部重点实验室

简介:

报告题目：

Poroelastic Materials: From Fundamental Mechanics to Novel Applications

报告人：

Yuhang Hu

报告时间：

2015-12-18 14:00

报告地点：

清华大学液晶大楼三层301会议室

主办单位：

清华大学微纳米力学与多学科交叉创新研究中心（CNMM）

简介：

Poroelastic material is a two-phase system consisting of a porous solid skeleton filled with liquid. The poroelasticity was originally developed for studying the consolidation of soils. In this study, I explore its applicability on polymeric gels which are composed of cross-linked polymer networks swollen in an aqueous solution. Gels have broad applications in many engineering fields but are difficult to characterize through mechanical tests because of their soft and brittle characters. In this talk, I will show that within the theory of poroelasticity, the force relaxation curves from indentation can be obtained in remarkably simple forms, enabling indentation to be used with ease as a method for determining the elastic constants and diffusivity of gels. Besides material characterization, I also explore the novel applications of poroelastic materials. I will show that the surface topography of a poroelastic material can be continuously tuned from a perfectly smooth one to a rough one due to the liquid’s ability to flow and reconfigure in response to the matrix deformation. In particular, I will demonstrate simultaneous control of the material’s transparency and its ability to continuously manipulate various low-surface tension droplets from free-sliding to pinned. In another example, I will show that the liquid’s ability to flow and reconfigure also provides a unique gating mechanism. The micro pores of a poroelastic membrane can be selectively opened and closed for gas and liquid transport while the liquid layer coating around the pores almost completely prevents fouling inside the pores. These novel properties of poroelastic membranes can benefit many industrial and biomedical applications.

About the Speaker

Dr. Yuhang Hu is currently an Assistant Professor in Mechanical Science & Engineering at University of Illinois Urbana-Champaign. Before joining UIUC, she was a postdoctoral fellow in the School of Engineering and Applied Sciences at Harvard. She received her bachelor’s degree in Engineering Mechanics at Shanghai Jiao Tong University, China, and master’s degree in Civil and Environmental Engineering at Nanyang Technological University, Singapore. She obtained her Ph.D. in Engineering Sciences at Harvard University. Dr. Hu’s research focuses on the mechanics of soft materials and bioinspired materials. Her study involves both theory and experiments.

报告题目：

The Global Star Formation Laws in Star-forming Galaxies

报告人：

Prof. Yu GAO

报告时间：

2015-12-17 14:00

报告地点：

蒙民伟科技南楼S727

主办单位：

物理系

简介：

The global star formation (SF) laws — the relations between star-forming gas and SF rate (SFR) — are reexamined in a large sample of 181 local star-forming galaxies with infrared luminosities (SFR) spanning almost five orders of magnitude. The surface density of dense molecular gas (as traced by HCN) has the tightest and linear correlation with that of SFR (ΣSFR). The ΣSFR is a steeper function of the total (H2+HI) Σgas than that of molecular gas ΣH2. We further show that the SFR and a variety of dense gas tracers (e.g., HCN, CS, their high-J and high-J CO) are all linearly correlated for both the Galactic dense cores and star-forming galaxies near and far. This has immediate implications on the modes of SF in galaxies because the dense cores are the sites of active SF, and thus the basic units in contributing to SF. The SFR should depend linearly upon the mass of dense molecular gas (the SF law!). These ground-based observations of last decade and recent Herschel results highlight what the ALMA is delivering on the studies of “SF laws” across large redshift ranges over wide SF scales.

Bio: Professor Yu Gao is an astronomer and group leader in the Purple Mountain Observatory. His research focuses on observations of star formation and molecular gas in nearby galaxies. Prof. Gao received his B.S. from the University of Science and Technology of China in 1984, and his Ph.D. from Stony Brook University in 1996. He was a postdoc fellow in the University of Illinois, University of Toronto, Caltech/JPL, and later became a scientist at Caltech and later at the University of Massachusetts. Since 2004, he joined the Purple Mountain Observatory as a leading professor. Prof. Gao has published over 100 papers which have been cited more than 2600 times. He serves as an associate editor for Ap&SS, Sci. China, and is on the editorial board of PASJ and RAA. He is a recipient of the China NSFC Distinguished Young Scholar, and CAS Hundred Talents award.

报告题目：

宇宙早期电弱相变和正反物质不对称的起源

报告人：

舒菁

报告时间：

2015-12-17 16:00

报告地点：

理科楼郑裕彤大讲堂

主办单位：

物理系

简介：

2012年上帝粒子在大型强子对撞机(LHC)上的发现让我们对基本粒子质量起源问题的了解向前跨出了决定性的一大步. 由此衍生出的粒子宇宙学的问题将是未来的热点. 它主要表现在两个方面,  一是电弱对称性自发破缺所对应的宇宙早期电弱相变的性质; 二是电弱相变过程中可能的宇宙早期正反粒子不对称性的起源和CP破坏. 本报告将简单介绍相关物理问题背景, 结合大型强子对撞机(LHC)上新的实验数据, 同步追述相关物理问题理论和实验上最新的进展, 并介绍报告人回国后的一些突破性工作. 相关许多问题其实与原子,分子,非平衡态和核物理计算也有着紧密联系. 最后我将对这个粒子物理学中的重大问题做一个未来的展望, 以及探讨未来在中国国内已经或者可能进行的相关实验计划。

个人简介：舒菁, 中国科学院理论物理研究所研究员, 博士生导师, 第二届青年千人计划入选者. 2003年毕业于北京大学物理系, 2008年获得美国芝加哥大学博士学位. 2008－2011年日本东京大学IPMU研究所特聘研究员, 2011－2012意大利SISSA高等研究院欧盟研究委员会特别研究员, 2012年回国. 研究领域主要关注于粒子物理理论和粒子宇宙学, 对几乎所有的分支,基础理论,群论,拓扑学, 模型构造,唯象学,对撞机物理,宇宙学以及实验设计都有涉猎。在顶夸克前后不对称性,复合Higgs粒子模型,宇宙早期重子数不对称起源和暗物质方面都有着开创性的工作。在海内外拥有40多名不同的合作者,拥有良好的学术交流基础。国际高能物理数据库网站(http://inspirehep.net)显示:文章总计被引用1700余次(包括4篇 Phys.Rev.Lett.), H因子为19。其中2篇关于顶夸克前后不对称性以及1篇复合Higgs粒子模型的工作分别被累计引用超过100余次。 回国后主要关注于Higgs物理和电弱对称性破缺的起源, 宇宙早期正反粒子不对称起源和提供国内未来超级对撞机(CEPC/SPPC)建设的重大物理意义, 其中关于宇宙早期正反粒子不对称性的起源和CP破坏的一系列工作得到了国际同行专家的的极大兴趣和认可。包括发表Phys.Rev.Lett.两篇, 应邀在国际系列会议BLV2015, SUSY2015上做大会特邀报告。

报告题目：

先进热电能源转换材料

报告人：

赵立东

报告时间：

2015-12-18 14:00

报告地点：

理科楼三楼报告厅（C302）

主办单位：

量子物质科学协同创新中心&物理系

简介：

热电材料是一种能将热能和电能相互转换的新能源材料。高效热电转换材料在新能源材料中占有十分重要的地位。它是利用温差发电原理 (Seebeck效应) 将热能直接转换成电能的能源材料，在航天探测器、工业余热回收利用、太阳能高效热电-光电复合发电等重要新能源技术中具有广泛应用，是材料科学技术领域中的前沿课题。热电转换效率主要由性能优值ZT决定，由ZT = (S2σ/κ)T可见在一定的温度T下，热电材料应该具有大的温差电动势S利于产生高电压，高的电导率σ利于减少内部焦耳能耗以及低的热导率κ利于维持温差。然而这几个热电性能参数之间相互依赖，此消彼长。本次报告主要讲述寻求提高热电性能的新方法：能带结构调整提高温差电动势、全方位声子散射降低晶格热导率、能带能量对齐调整电传输性能、最后介绍具有本征低热导率的热电材料的特点和主要发展趋势等。个人简介：赵立东，1979年生于哈尔滨，中组部第六批“青年千人计划”入选者, 现为北京航空航天大学材料科学与工程学院教授，博士生导师。主要从事热电能源材料、超导材料和低热传导氧化物材料的研究。2001年和2005年分别获得辽宁工程技术大学材料学学士和硕士学位，2009年获得北京科技大学材料学博士学位。2009年2月至2011年2月，法国巴黎十一大学物理系 (University of Paris-Sud) 博士后。2011年2月2014年9月，美国西北大学化学系 (Northwestern University) 博士后。2014年9月入职“北航卓越百人计划”。迄今已在Science, Nature, Nature Commun., J. Am. Chem. Soc., Energy Environ. Sci., Adv. Mater., Adv. Funct. Mater., Adv. Energy Mater.等期刊上发表SCI论文80余篇, 被引用2300多次。

报告题目： Smart and Robust Sensing Systems Enabled by MEMS Technology and Low Power Electronics 报告人： Prof. Darrin Young ( University of Utah, Salt Lake City) 报告时间： 2015-12-16 14:00 报告地点： 清华大学微电子所新所B312 主办单位： 清华大学微电子所 简介： Abstract:Advancement in micromachined sensors, actuators, and low-power integrated electronics has fueled recent rapid development in wireless microsystem technology providing smart robust sensing and wireless communication capability. Ultra low system power dissipation allows batteryless microsystem to be achieved with a small form factor and powered by ambient or external energy sources. Such system is crucial for biomedical as well as industrial sensing applications, where size, weight, and limited access are critical system design constraints. Optimized design in system, device, circuit, and packaging is highly important for achieving an overall high performance. In this seminar, I will first present two on-going research efforts from my research laboratory on (1) wireless battery recharging for implantable bladder pressure sensor and (2) robust MEMS tactile sensor array. System design architecture, sensing principles, and measurement results will be described.

Biography:Darrin Young received his B.S., M.S., and Ph.D. degrees from the Department of Electrical Engineering and Computer Sciences at University of California at Berkeley.Dr. Young pioneered the research work in MEMS-based, high-Q, tunable capacitors and on-chip 3-D coil inductors for low phase noise RF voltage-controlled oscillator design for wireless communication applications. Between 1991 and 1993, he worked at Hewlett-Packard Laboratories in Palo Alto, California, where he designed a shared memory system for a DSP-based multiprocessor architecture. Between 1997 and 1998, he worked at Rockwell Semiconductor Systems in Newport Beach, California, where he designed silicon bipolar RF analog circuits for cellular telephony applications. During this time period he was also at Lawrence Livermore National Laboratory, working on the design and fabrication of three-dimensional RF MEMS coil inductors for wireless communications. Dr. Young joined the Department of Electrical Engineering and Computer Science at Case Western Reserve University in 1999. In 2009 he joined the Electrical and Computer Engineering Department at the University of Utah, where he currently serves as an associate department chair. His interests include micro-electro-mechanical systems design, fabrication, and integrated circuits design for wireless sensing, biomedical implant, communication and general industrial applications as well as commercialization of wireless microsystems. He has published many technical papers in journals and conferences, and served as a technical program committee member and session chair for a number of international conferences. Dr. Young was an associate editor of the IEEE Journal of Solid-State Circuits between 2006 and 2011, and the chair of the IEEE Electron Devices Society MEMS Committee between 2006 and 2009. He is a member of the IEEE Sensors Council, and currently serves as an editor of the IEEE Transactions of Electron Devices with a special focus on solid-state sensors and actuators.

报告题目：

Capital Allocation Across Sectors: Evidence from a Boom in Agriculture

报告人：

Jacopo Ponticelli

报告时间：

2015-12-16 14:00

报告地点：

清华五道口金融学院4号楼101教室

主办单位：

清华大学五道口金融学院

报告题目：

中国法治进程中的政策体系及其作用

报告人：

王晨光

报告时间：

2015-12-16 14:00

报告地点：

清华大学甲所第三会议室

主办单位：

清华大学•野村综研中国研究中心

报告题目：

锤炼中国的概念工具，贡献于人类的知识体系

报告人：

常向群

报告时间：

2015-12-15 10:00

报告地点：

清华大学熊知行楼211会议室

主办单位：

社科学院人类学与民族学研究中心

报告题目： 东润丘成桐科学奖学术报告——数学 报告人： 小谷元子（Motoko Kotani）教授 报告时间： 2015-12-12 13:30 报告地点： 清华大学主楼报告厅（主楼后厅） 主办单位： 丘成桐数学科学中心 简介： 报告人简介：

小谷元子（Motoko Kotani）教授自 1999 年以来，她一直在东北大学任教，现任日本东北大学原子分子材料科学高等研究院院长，日本数学会会长。

作为离散几何分析领域的先驱之一，Kotani教授的研究领域涉及几何学，以及几何和概率理论之间的相互作用等。为研发创新型材料，Kotani教授一直致力于促进数学家和材料学家间的合作。

Kotani 教授被东北大学授予研究生院理学院杰出教授称号并于2005年荣获“猿桥奖Saruhashi Prize”（该奖专为女性科学家设立，获奖人被视为当代女性科学家榜样）。Kotani教授1983年本科毕业于东京大学理学部，并于1990年从东京都立大学获得数学博士学位。

  Speaker: Motoko Kotani

Professor of Mathematics, Tohoku University

Director, Advanced Institute for Materials Research

  Time: Saturday 13:30-14:30, 2015-12-12

Place: Lecture Hall, Main Bldg., Tsinghua University

  Title: Geometry for Materials

Abstract: The history of the development of materials is that of progress of mankind itself. Whenever mankind has discovered new materials, such as stone implements, earthenware, ironware, metals, ceramics, or polymeric materials, our society has changed drastically, and along with changes in our society, new values have been created. Nowadays, technology has been develop to design microscopic structure like atoms and molecules. I would like to present how mathematics, geometry in particular, can contribute to materials design.

Introduction of Speaker:

Professor Motoko Kotani has been working at Tohoku University since 1999, and now she is the director of Advanced Institute for Materials Research (AIMR) at Tohoku University. Professor Kotani is also the president of The Mathematical Society of Japan.

As a pioneer in the research on Discrete Geometric Analysis, which is one of the new frontiers in Geometry of mathematics, Professor Kotani carries out research in Geometry, studying symmetries of figures; she also interested in the interplay of Geometry and Probability Theory. Also, to develop new and innovative materials, Professor Kotani has been promoting the collaboration between mathematicians and materials scientists.

In 2005, Professor Kotani won the Saruhashi Prize, which awarded yearly for top woman scientist who serves as a role model for younger female scientists. After getting her Bachelor Degree from Tokyo University in 1983, Kotani received her Ph.D. in mathematics from Tokyo Metropolitan University in 1990.

报告题目： 东润丘成桐科学奖学术报告——物理 报告人： Peter Fisher 教授 报告时间： 2015-12-12 14:45 报告地点： 清华大学主楼报告厅（主楼后厅） 主办单位： 丘成桐数学科学中心 简介： 报告人简介：

  彼得.费希尔（Peter Fisher）教授在美国麻省理工学院物理系任教，目前担任物理系主任一职。他主要从事粒子物理学方面的研究，包括暗物质探测领域和新粒子探测器发展等领域。Fisher教授的兴趣还涉及紧凑型能源供应、电磁辐射、无线能量传输及盆景等方面的教学工作。

  在1994年来麻省理工学院之前，Fisher教授在加利福尼亚大学伯克利分校获得工程物理学士学位，随后又在加州理工学院获得工程物理博士学位；在1989-1994期间Fisher教授在约翰.霍普金斯大学任教。

      Speaker: Peter Fisher

Professor and Head, Department of Physics

Massachusetts Institute of Technology

  Time: Saturday 14:45-15:45, 2015-12-12

Place: Lecture Hall, Main Bldg., Tsinghua University

  Title: Big Bangs and Little Bumps: The Story of Dark Matter

Abstract: What is Dark Matter? Dark Matter was first uncovered about eighty years ago through observations of the motion of galaxies in a large galactic cluster. Since then, astronomers and particle physicists have tried to learn what dark matter is, but we have mostly learned what dark matter isn’t. The first part of the talk will focus on how we came to know what we do know about dark matter and the second part will explore the new experiments both on Earth and in space.

Introduction of Speaker:

Professor Fisher is a member of the faculty in the Physics Department and currently serves as department head. He carries out research in particle physics in the areas of dark matter detection and the development of new particle detectors. He also has an interest in compact energy supplies, pedagogical work on electromagnetic radiation, wireless energy transmission, and bonsai. Before coming to MIT in 1994, Fisher earned his bachelor’s degree in engineering physics from the University of California at Berkeley, followed by a PhD in nuclear physics from the California Institute of Technology. He was on the faculty of Johns Hopkins University from 1989 to 1994.

报告题目：

经验、认知与大数据清华大数据“技术前沿”蔡曙山讲座

报告人：

蔡曙山

报告时间：

2015-12-10 19:00

报告地点：

经管学院伟伦楼W409

主办单位：

清华大学数据科学研究院

简介：

报名链接：http://form.mikecrm.com/f.php?t=k6aESe

认知科学是一门探究人脑或心智工作机制的前沿性尖端学科，也是一门跨领域的交叉学科，其研究领域包括心理学、哲学、人工智能、神经科学、学习、语言学、人类学、社会学和教育学等诸多学科。

你想知道这些吗：

如何从人的角度看人与数据之间的互动？

如何通过数据来看人的认知？

如何将认知更加数据化、理论化？

如何通过数据来划分认知科学？

本期技术前沿讲座，我们有幸邀请到清华大学心理学系的心理学系教授委员会主任、心理学与认知科学研究中心主任的蔡曙山教授，来和大家一起分享他在人类认知的五层结构理论以及高阶认知方面的研究成果。

蔡老师将人类认知分为神经认知、心理认知、语言认知、思维认知和文化认知五个层级，进而区分低阶认知和高阶认知。人类认知即高阶认知是以语言为基础、以思维和文化为特征的认知形式。五个层级的认知决定了认知科学相关学科的发展，五个层级认知的交叉决定了更多的交叉学科的发展。本讲座基于蔡老师最新发布的的认知科学文章，许多前沿技术蔡老师都将在本次讲座中首次公开，与大家探讨，敬请期待！

报告题目：

Competing orders/fluctuations in high-temperature superconductors probed by ARPES

报告人：

Prof. Atsushi Fujimori

报告时间：

2015-12-10 14:30

报告地点：

理科楼三楼报告厅（C302）

主办单位：

量子物质科学协同创新中心&物理系

简介：

Competition between magnetism, charge order, and superconductivity observed in various high-temperature superconductors has been the subject of extensive research. Through the observation of band folding signature caused by such orders or fluctuations, ARPES yields deep insights into the nature of competing orders whose fluctuations might enhance the superconductivity. In this talk, two dramatic observations are presented and discussed: (i) In electron-doped cuprates after “protect annealing”, the band folding due to short-range antiferromagnetic order is suppressed while the signature of charge fluctuations remains as strong as the hole-doped cuprates [1]. (ii) In a parent compound BaFe2As2 of iron-based superconductors, the band folding signature of the antiferromagnetic order persists well above the Neel temperature, i.e., into the so-called “nematic phase”, which we attribute to the existence of antiferro-orbital component in the latter phase.

Reference： [1] M. Hiroi et al., arXiv:1502.03395.

个人简介：Prof. Fujimori received his B.S., M.S. and Ph.D. degree from the Department of Physics, University of Tokyo. He has been in the faculty of the University of Tokyo since 1988. His

research focuses on photoemission spectroscopy of correlated materials, in particular, high-temperature superconductors, transition-metal oxides and magnetic semiconductors and their

nano-structures. Currently, his research group study the electronic structures of strongly correlated systems using high-energy spectroscopic techniques such as photoemission

spectroscopy, x-ray absorption spectroscopy and x-ray magnetic circular dichroism using synchrotron radiation. Prof. Atsushi Fujimori was awarded many prizes including Toray Science

and Technology Award, Sumitomo Foundation Basic Science Award, IBM Japan Science Prize and Superconductivity Science and Technology Prize.