共查询到20条相似文献，搜索用时 31 毫秒
1.
《Journal of The Franklin Institute》2003,340(3-4):205-211
The Franklin Institute, Philadelphia, Pennsylvania, awarded the 2002 Bower Award for Achievement in Science to John Werner Cahn for his research in the field of materials science. Over the past four and a half decades, Cahn's ideas have vitally affected every area of the field and have strongly influenced statistical physics as well. In particular, Cahn's invention of the Cahn-Hilliard equation has been path breaking, as has his contribution to quasicrystallography. 相似文献
2.
George Church receives the 2011 Bower Award and Prize for Achievement in Science for innovative and creative contributions to genomic science, including the development of DNA sequencing technologies, and for his subsequent efforts to promote personal genomics and synthetic biology. 相似文献
3.
本文通过紫外、红外和圆二色（CD）光谱表征考察了外在离心力场对非手性化合物异佛尔酮不对称氧化生成光学活性产物的影响。结果表明离心力场能够诱导产物的对映体过量,在顺时针和逆时针旋转力场中得到的产物CD230信号相反并随转速的增大而增大。作者推测,顺时针和逆时针圆周离心运动（轴矢量）结合地球在时空上的天然线性运动（极矢量）形成的左、右手螺旋运动的不对称作用可能是诱导反应对映体过量的力学原因。 相似文献
4.
Mitch MarcusAuthor Vitae 《Journal of The Franklin Institute》2002,339(3):277-281
Irwin Mark Jacobs, Founder and CEO of QUALCOMM, Winner of the 2001 Bower Award for Business Leadership.Irwin Mark Jacobs is that rare individual who combines scientific and technical ingenuity with entrepreneurial spirit, strong business leadership, and philanthropic spirit to become a leader in intersecting arenas. Jacobs has combined these qualities to position his company, QUALCOMM, into the world's leader in cellular telephony. 相似文献
5.
Roy Privett 《Journal of The Franklin Institute》2002,339(3):257-263
The Franklin Institute, Philadelphia, Pennsylvania awarded the 2001 Bower Award and prize to Paul Baran for his efforts to advance our knowledge of physical science or its application for his seminal invention of packet switching—the foundation of modern communications networks and, in particular, the Internet.Simply stated the technology of packet-switching, allows pieces of information to be divided into small packets or “envelopes” of information that are addressed, sent using multiple available routes to a specific destination, then reassembled. This technology—a post office-like system—revolutionized the telecommunications industry. Originally devised during the cold war for a military communications system survivable in the event of nuclear attack, packet switching became the foundation of computer networks including the Internet and truly has altered the world in which we live. 相似文献
6.
以恶唑啉为导向基团 ,通过邻位锂化方便地高非对映选择性地合成了一系列平面手性二茂铁硫恶唑啉、硒恶唑啉和膦恶唑啉配体 .应用于 1 ,3 二苯基烯丙基醋酸酯的烯丙基烷基化反应 ,ee值最高可达 99%,膦氮配体在烯丙基胺化反应中 ,ee值最高也可达 97%.此外 ,发现中心手性起到了决定产物ee值和绝对构型的作用 ,平面手性和中心手性的匹配在取得高对映选择性上是重要的 .设计合成的一类平面手性二茂铁修饰的手性口袋型双膦配体 ,由于有平面手性的辅助而具有更有效的诱导效应 .这类配体在前手性亲核试剂的不对称烯丙基化生成季碳氨基酸衍生物构及alpha 位双取代季碳酮反应中 ,ee值最高分别可达到 75 %和 95 %.设计合成的 1 ,1’ 二茂铁膦氮配体 ,在单取代的烯丙基醋酸酯的钯催化区域选择性及对映选择性的烯丙基烷基化及胺化反应中 ,显示了非常高的反应活性、区域选择性和对映选择性 .配体中BINOL羟基由于和苄胺存在分子间氢键而对反应的选择性起到了关键作用 ,并从实验上给予了证明 相似文献
7.
Richard B. Adler 《Journal of The Franklin Institute》2010,347(4):658-661
The scientific theme for the 2006 Bower Award for Achievement in Science was Electric Power Systems. The award was presented to Narain G. Hingorani for the conceptualization and pioneering advancement of Flexible AC Transmission Systems (FACTS) and Custom Power in electric power systems, and for outstanding technical contributions in High Voltage Direct Current (HVDC) technology. His contributions have enhanced the quality and security of the electric power system, and are expected to revolutionize future alternating current power transmission and distribution systems. 相似文献
8.
《中国科学院院刊(英文版)》2009,23(4):271-272
One summer＇s day in 1984, a meteorologist came all the way from the United States to Prof. Ye Duzheng, a CAS atmospheric scientist in Beijing, in the hope of establishing cooperative research into global climate change, a field unfamiliar to most scientists in the world at that time. His proposal immediately caught the interest of Ye, who was then president of the Chinese Meteorological Society and vice-president of CAS. Prof. Ye believed it to be an extremely important issue requiring sustained and collaborative attention. 相似文献
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10.
利用简单的手性有机配体L-酒石酸成功地合成出了一系列类似DNA螺旋构型的左、右旋的一维链状聚合物：{A[Mo2VIO4LnIII(H2O)6(C4H2O6)2]·4H2O}n (Ln = Sm, Eu, Gd, Ho, Yb, Y; C4H2O6 = L- 或 D-酒石酸； A = NH4 或 H3O)。通过水热法，巧妙地把传统的钼氧单核{MoO4}、双核{Mo2O7}以及{Mo8O26}等结构单元，通过有机配体配位的过渡金属单元交错地连接成零、一、二、三维的一系列结构新颖的化合物，这类化合物大多数具有可以容纳客体小分子的隧道或空穴，如 [Cu(4,4’-bpy)]2MoO4·2H2O，[Cu(4,4’-bpy)]2Mo2O7，[Cu(4,4’-bpy)(Hnic)(H2O)]2Mo8O26等。首次利用水热法合成出了含稀土的杂多酸类化合物，[Gd(H2O)3]3[GdMo12O42]·3H2O。该化合物是由Silverton-型的 [GdMo12O42]9- 阴离子和配位的Gd3+ 阳离子组成的。在[GdMo12O42]9- 离子中首次把顺磁性的钆(III)离子引入到该构型的中心，并且通过九配位的钆(III)离子把它们连接成具有介孔结构的三维网状化合物。该化合物的获得为今后合成类似化合物提供了一个很好的范例。在水热法合成出的化合物，[Cu2(C8H6N2)2(C7H6N2)]2[Mo8O26] 中，首次捕捉到喹喔啉的氧化产物苯并咪唑，证明了在水热条件下含氮的芳香杂环类的有机配体可以被二价铜氧化，其氧化产物进而作为配体直接与铜原子配位，最终形成新颖的上述化合物。 相似文献
11.
《普罗米修斯》2012,30(1):67-71
Dr Peter Wilmshurst is a consultant cardiologist. He is a leader in his field, and also a whistleblower, drawing attention to that which he believes to be wrong. He was presented with the HealthWatch Award 2003. Peter Wilmshurst has clashed with universities, editors, the medical establishment, and – perhaps inevitably – with the pharmaceutical industry. It is this last encounter that has taken him to court and that has made explicit and very public the relevance of the UK's libel laws to scientific research. 相似文献
12.
Dieter Forster Author Vitae 《Journal of The Franklin Institute》2006,343(3):263-270
The Franklin Institute, Philadelphia, Pennsylvania, awarded the 2005 Benjamin Franklin medal in physics to Yoichiro Nambu for his seminal contributions which introduced the modern concept of broken symmetry to elementary particle physics, for his invention of the particle property called color which is the key to quark confinement, and for his ground-breaking work on the theory of string-like elementary particles. 相似文献
13.
The University of Surrey (referred to as Surrey hereafter) is one of the renowned universities in the UK that was established on 9 September 1966 with the grant of its Royal Charter and its roots go back to Battersea Polytechnic Institute, founded in 1891. Surrey is the research hub of small satellites, mobile telecommunication and artificial intelligence in Europe. In 2016, Surrey was named as ‘University of the Year’ in the UK and, in February 2018, Surrey won the Queen''s Anniversary Prize for Higher and Further Education (Surrey''s fourth award)—the highest national award for the UK universities, in recognition of the outstanding contribution of Surrey to nutrition and health.The president and vice chancellor of Surrey, Professor Max Lu, took this position in 2016 and is also the first scholar of Chinese origin to be the leader of a British university. Before he joined Surrey, he was the provost and senior vice president at the University of Queensland in Australia. Professor Lu is not only a talented leader in education field, but also a distinguished scientist in materials chemistry and nanotechnology area. He has been honored with numerous awards, including the Orica Award, RK Murphy Medal, China International Science and Technology Award and Medal of the Order of Australia, etc. He has been also appointed to the Prime Minister''s Council for Science and Technology and the Board of UK Research and Innovation, etc. The rich experience and open-mindedness lead to his profound insights into higher education around the world. Lately elected as a fellow of Royal Academy of Engineering (RAEng) and foreign member of the Chinese Academy of Sciences, Professor Lu shared his broad and deep perspectives on higher education with National Science Review during his travel in Beijing. 相似文献
14.
Klaus H Theopold 《Journal of The Franklin Institute》2002,339(3):307-314
The Franklin Institute, Philadelphia, PA awarded the 2001 Benjamin Franklin Medal in Chemistry to K. Barry Sharpless for his important innovative scientific contributions to the field of asymmetric catalytic oxidation, which resulted in highly enantioselective processes for the epoxidation, dihydroxylation and aminohydroxylation of olefins. 相似文献
15.
美利坚大学图书馆营销活动及其启示 总被引：7，自引：0，他引：7
本文旨在通过对2005年ACRL最佳营销奖第一名获得者关利坚大学图书馆的主要营销活动的介绍,分享其成功运行的经验,并对国内高校图书馆开展相关活动有所启示。 相似文献
16.
Guanzhao Wu Yangxue Liu Zhen Yang Tao Jiang Nandakumar Katakam Hossein Rouh Liulei Ma Yao Tang Sultan Ahmed Anis U Rahman Hongen Huang Daniel Unruh Guigen Li 《国家科学评论(英文版)》2020,7(3):588
The first enantioselective assembly of sandwich-shaped organo molecules has been achieved by conducting dual asymmetric Suzuki-Miyaura couplings and nine other reactions. This work also presents the first fully C-C anchored multi-layer 3D chirality with optically pure enantiomers. As confirmed by X-ray diffraction analysis that this chiral framework is featured by a unique C2-symmetry in which a nearly parallel fashion consisting of three layers: top, middle and bottom aromatic rings. Unlike the documented planar or axial chirality, the present chirality shows its top and bottom layers restrict each other from free rotation, i.e., this multi-layer 3D chirality would not exist if either top or bottom layer is removed. Nearly all multi-layered compounds showed strong luminescence of different colors under UV irradiation, and several randomly selected samples displayed aggregation-induced emission (AIE) properties. This work is believed to have broad impacts on chemical, medicinal and material sciences including optoelectronic materials in future. 相似文献
17.
Francesca Sapuppo Andreu Llobera Florinda Schembri Marcos Intaglietta Victor J. Cadarso Maide Bucolo 《Biomicrofluidics》2010,4(2)
We describe design and miniaturization of a polymeric optical interface for flow monitoring in biomicrofluidics applications based on polydimethylsiloxane technology, providing optical transparency and compatibility with biological tissues. Design and ray tracing simulation are presented as well as device realization and optical analysis of flow dynamics in microscopic blood vessels. Optics characterization of this polymeric microinterface in dynamic experimental conditions provides a proof of concept for the application of the device to two-phase flow monitoring in both in vitro experiments and in vivo microcirculation investigations. This technology supports the study of in vitro and in vivo microfluidic systems. It yields simultaneous optical measurements, allowing for continuous monitoring of flow. This development, integrating a well-known and widely used optical flow monitoring systems, provides a disposable interface between live mammalian tissues and microfluidic devices making them accessible to detection∕processing technology, in support or replacing standard intravital microscopy. 相似文献
18.
Prof. Huang Kun is an internationally renowned specialist in solid state physics and semi-conductors. He is a CAS member and also a foreign member of the Swedish Academy of Sciences and a fellow of the Third World Academy of Sciences. He received China's 2001 Supreme Scientific and Technological Award on February,2002, for his lifetime achievements. 相似文献
19.
Robert L. McArthur 《Ethics and Information Technology》2001,3(2):123-128
Use of the concept of `areasonable person and his or her expectations'is widely found in legal reasoning. This legalconstruct is employed in the present article toexamine privacy questions associated withcontemporary information technology, especiallythe internet. In particular, reasonableexpectations of privacy while browsing theworld-wide-web and while sending and receivinge-mail are analyzed. 相似文献
20.
建构主义是教育心理学学习理论的重要派别,有其自身独特完整的理论体系,包括知识观、学习观和教学观。建构主义被广泛应用在教育领域,特别是大学英语教学中,对广大英语教师教学有很深的启示作用。 相似文献