为了提高期刊的质量，争取早日被SCI收录，对Tsinghua Science and Technology创刊6年来刊文作者的地域分布及论文引用文献的情况进行了分析。结果表明：校内作者仍是主要的作者群，但近年来校外作者特别是国外作者的论文比例有所增加...为了提高期刊的质量，争取早日被SCI收录，对Tsinghua Science and Technology创刊6年来刊文作者的地域分布及论文引用文献的情况进行了分析。结果表明：校内作者仍是主要的作者群，但近年来校外作者特别是国外作者的论文比例有所增加；每篇论文引用文献的平均数量不断增加，由1996年的6.9篇增加到2001年的13.4篇，并且引用外文文献的比例也在不断提高。提出，在创办高水平科技期刊过程中应主动向国际著名专家约稿，并努力实现期刊的国际化。展开更多
Overview and research infrastructure As one of the leading laboratories in the interdisciplinary field of additive manufacturing and bio-3D printing,the Bio-Manufacturing Center at Tsinghua University is highly dedica...Overview and research infrastructure As one of the leading laboratories in the interdisciplinary field of additive manufacturing and bio-3D printing,the Bio-Manufacturing Center at Tsinghua University is highly dedicated to conducting cutting-edge research in the emerging field of bio-manufacturing.The latter is comprised of research involving biomaterials,living cells,proteins,and/or other biological compounds as basic building blocks to fabricate biomimetic structures,in vitro functional biological models and/or cellular systems with application to tissue engineering,regenerative medicine,disease pathogenesis,drug screening,and tissue/organ-on-a-chip.展开更多
Among the bamboo slips dating to the Warring States period(475-221 BCE),stored at Tsinghua University,there is an aggregate of 21 specially shaped slips that are painted with red lines on the obverse side.Numbers are ...Among the bamboo slips dating to the Warring States period(475-221 BCE),stored at Tsinghua University,there is an aggregate of 21 specially shaped slips that are painted with red lines on the obverse side.Numbers are written on 20 slips in accordance with certain rules,and on one slip without numbers there are 20 round holes and residues of ribbon.These slips,after being compiled as a whole,serve as a practical calculator in the form of a table,which is designated as Suan Biao算表(the multiplication table).In this paper,the structure and functions of the Suan Biao are discussed by comparing it with other ancient multiplication tables.Specifically,it is noted that the core of the Suan Biao is a multiplication table comprising the numbers 9 to 1 and their products 81 to 1;the other parts are an extension of the core.The Suan Biao employs the decimal place value system and manifested the author’s knowledge of the commutative law of multiplication,the distributive law of multiplication over addition,and fractions.Not only is this table directly applicable to the multiplication of two-digit numbers,but also to division.In addition,certain computations regarding 1/2 or fractions containing 1/2 can be conducted using this table,and it may also be used for extracting roots.The Suan Biao is of great significance for research on ancient mathematics,and its discovery is enormously valuable for studies on arithmetic methods and computational tools in early China.展开更多
Tsinghua-TOYO Research and Development Center of Magnesium and Aluminum Alloys Processing Technology was officially established between Tsinghua University and TOYO Machinery & Metal Co. on Feb. 26, 2002, which is...Tsinghua-TOYO Research and Development Center of Magnesium and Aluminum Alloys Processing Technology was officially established between Tsinghua University and TOYO Machinery & Metal Co. on Feb. 26, 2002, which is a non-independent legal research organization located in Department of Mechanical Engineering of Tsinghua University. The center was equipped with one set of 650t automatic magnesium and aluminum alloys diecasting machine and necessary accessories including the melting furnaces for magnesium alloys and aluminum alloys, an accurate magnesium pump to transfer the magnesium alloys to the shot sleeve of the die casting machine, a die temperature controller, and data logging systems for cavity pressure and die temperature distributions, etc. The center is aimed to the research and development of magnesium and aluminum die casting process and their related technologies, and the main research contents include:展开更多
Tsinghua University Library recently launched Tsinghua Wireless and Mobile Digital Library System(TWIMS) to meet users’ need for wireless access to library services.A survey of user experience about TWIMS was carried...Tsinghua University Library recently launched Tsinghua Wireless and Mobile Digital Library System(TWIMS) to meet users’ need for wireless access to library services.A survey of user experience about TWIMS was carried out for the purpose of studying its users’ behavior and their level of satisfaction about the system design and its various performance indicators. Based on our research findings, we concluded our research paper with a set of evaluative comments and suggestions. Those remarks are aimed at furthering the TWIMS’ functionality and reconstructing a more sensible questionnaire survey appertaining to the system users’ experience as well in the next phase of our extended research.展开更多
宽能谱超高通量试验堆(Tsinghua High Flux Reactor,THFR)是一种具备国际先进水平的水冷高通量反应堆,其辐照孔道未扰动的平均热、快中子通量可达2×10^(15)n·cm^(-2)·s^(-1),具有中子通量高、能谱范围宽、辐照能力强、...宽能谱超高通量试验堆(Tsinghua High Flux Reactor,THFR)是一种具备国际先进水平的水冷高通量反应堆,其辐照孔道未扰动的平均热、快中子通量可达2×10^(15)n·cm^(-2)·s^(-1),具有中子通量高、能谱范围宽、辐照能力强、功能用途广等突出特点,综合辐照性能居于国际领先水平,在工业、农业、航天、医疗等领域具有重要应用。本文分析了THFR反应堆及相关系统、辐照应用系统的设计特点,包括采用“池壳式”堆本体结构、“低中子自屏”堆芯设计、弧板型燃料组件、旋转控制鼓、多用途辐照孔道设计、“能动-非能动”相结合安全系统设计等,并对该堆在核燃料和材料辐照考验、放射性同位素辐照生产、中子科学研究等领域的应用前景进行了展望。THFR为服务国家重大战略需求、保障人民生命健康、培育和发展新质生产力提供了有力支撑。展开更多
The renowned scientist is academician of the Chinese Academy of Sciences,former president of Tsinghua University,and chair of the Tengchong Scientists Forum.ACADEMICIAN of the Chinese Academy of Sciences,former presid...The renowned scientist is academician of the Chinese Academy of Sciences,former president of Tsinghua University,and chair of the Tengchong Scientists Forum.ACADEMICIAN of the Chinese Academy of Sciences,former president of Tsinghua University,and chair of the Tengchong Scientists Forum,Gu Binglin is one of the world’s top physicists and materials scientist,and a pioneer in the field of materials design.展开更多
Established in 1909, Tsinghua Co[lege was built on the base of a royal garden, and developed into a modern university through campus designs produced by Henry Murphy. The Auditorium, one of the Four Grand Buildings du...Established in 1909, Tsinghua Co[lege was built on the base of a royal garden, and developed into a modern university through campus designs produced by Henry Murphy. The Auditorium, one of the Four Grand Buildings during Tsinghua＇s formative times, was a significant part of early construction and has become a symbol of the school. However, no thorough measuring work has ever been done to it since its completion in 1921. This paper delves into archives with combination of field survey and measurement, aiming to better understand the historical background in which the construction of the Auditorium was embedded, and technological and structural features of the Auditorium. Though the Guastavino system was indicated in the original design drawn by Murphy, concrete shell was applied in the end. The first part combs up the intellectual origins and precedents of the campus planning by Henry Murphy. As the dome is a focal point of the study, a brief course on the history of dome construction in the West is needed. The third part, based upon field measurement in July 2013, compares the actual dome with its original design featured by the Guastavino method, deducing possible reasons that resulted in the differences, including architect＇s unfamiliarity with Guastavino Company and its parameters, considerations about cost, and local construction tradition.展开更多
文摘为了提高期刊的质量，争取早日被SCI收录，对Tsinghua Science and Technology创刊6年来刊文作者的地域分布及论文引用文献的情况进行了分析。结果表明：校内作者仍是主要的作者群，但近年来校外作者特别是国外作者的论文比例有所增加；每篇论文引用文献的平均数量不断增加，由1996年的6.9篇增加到2001年的13.4篇，并且引用外文文献的比例也在不断提高。提出，在创办高水平科技期刊过程中应主动向国际著名专家约稿，并努力实现期刊的国际化。
文摘Overview and research infrastructure As one of the leading laboratories in the interdisciplinary field of additive manufacturing and bio-3D printing,the Bio-Manufacturing Center at Tsinghua University is highly dedicated to conducting cutting-edge research in the emerging field of bio-manufacturing.The latter is comprised of research involving biomaterials,living cells,proteins,and/or other biological compounds as basic building blocks to fabricate biomimetic structures,in vitro functional biological models and/or cellular systems with application to tissue engineering,regenerative medicine,disease pathogenesis,drug screening,and tissue/organ-on-a-chip.
文摘Among the bamboo slips dating to the Warring States period(475-221 BCE),stored at Tsinghua University,there is an aggregate of 21 specially shaped slips that are painted with red lines on the obverse side.Numbers are written on 20 slips in accordance with certain rules,and on one slip without numbers there are 20 round holes and residues of ribbon.These slips,after being compiled as a whole,serve as a practical calculator in the form of a table,which is designated as Suan Biao算表(the multiplication table).In this paper,the structure and functions of the Suan Biao are discussed by comparing it with other ancient multiplication tables.Specifically,it is noted that the core of the Suan Biao is a multiplication table comprising the numbers 9 to 1 and their products 81 to 1;the other parts are an extension of the core.The Suan Biao employs the decimal place value system and manifested the author’s knowledge of the commutative law of multiplication,the distributive law of multiplication over addition,and fractions.Not only is this table directly applicable to the multiplication of two-digit numbers,but also to division.In addition,certain computations regarding 1/2 or fractions containing 1/2 can be conducted using this table,and it may also be used for extracting roots.The Suan Biao is of great significance for research on ancient mathematics,and its discovery is enormously valuable for studies on arithmetic methods and computational tools in early China.
文摘Tsinghua-TOYO Research and Development Center of Magnesium and Aluminum Alloys Processing Technology was officially established between Tsinghua University and TOYO Machinery & Metal Co. on Feb. 26, 2002, which is a non-independent legal research organization located in Department of Mechanical Engineering of Tsinghua University. The center was equipped with one set of 650t automatic magnesium and aluminum alloys diecasting machine and necessary accessories including the melting furnaces for magnesium alloys and aluminum alloys, an accurate magnesium pump to transfer the magnesium alloys to the shot sleeve of the die casting machine, a die temperature controller, and data logging systems for cavity pressure and die temperature distributions, etc. The center is aimed to the research and development of magnesium and aluminum die casting process and their related technologies, and the main research contents include:
基金supported by the Foundation for Humanities and Social Sciences of the Chinese Ministry of Education(Grant Nos.:08JA870010 and 11BTQ011)
文摘Tsinghua University Library recently launched Tsinghua Wireless and Mobile Digital Library System(TWIMS) to meet users’ need for wireless access to library services.A survey of user experience about TWIMS was carried out for the purpose of studying its users’ behavior and their level of satisfaction about the system design and its various performance indicators. Based on our research findings, we concluded our research paper with a set of evaluative comments and suggestions. Those remarks are aimed at furthering the TWIMS’ functionality and reconstructing a more sensible questionnaire survey appertaining to the system users’ experience as well in the next phase of our extended research.
文摘宽能谱超高通量试验堆(Tsinghua High Flux Reactor,THFR)是一种具备国际先进水平的水冷高通量反应堆,其辐照孔道未扰动的平均热、快中子通量可达2×10^(15)n·cm^(-2)·s^(-1),具有中子通量高、能谱范围宽、辐照能力强、功能用途广等突出特点,综合辐照性能居于国际领先水平,在工业、农业、航天、医疗等领域具有重要应用。本文分析了THFR反应堆及相关系统、辐照应用系统的设计特点,包括采用“池壳式”堆本体结构、“低中子自屏”堆芯设计、弧板型燃料组件、旋转控制鼓、多用途辐照孔道设计、“能动-非能动”相结合安全系统设计等,并对该堆在核燃料和材料辐照考验、放射性同位素辐照生产、中子科学研究等领域的应用前景进行了展望。THFR为服务国家重大战略需求、保障人民生命健康、培育和发展新质生产力提供了有力支撑。
文摘The renowned scientist is academician of the Chinese Academy of Sciences,former president of Tsinghua University,and chair of the Tengchong Scientists Forum.ACADEMICIAN of the Chinese Academy of Sciences,former president of Tsinghua University,and chair of the Tengchong Scientists Forum,Gu Binglin is one of the world’s top physicists and materials scientist,and a pioneer in the field of materials design.
文摘Established in 1909, Tsinghua Co[lege was built on the base of a royal garden, and developed into a modern university through campus designs produced by Henry Murphy. The Auditorium, one of the Four Grand Buildings during Tsinghua＇s formative times, was a significant part of early construction and has become a symbol of the school. However, no thorough measuring work has ever been done to it since its completion in 1921. This paper delves into archives with combination of field survey and measurement, aiming to better understand the historical background in which the construction of the Auditorium was embedded, and technological and structural features of the Auditorium. Though the Guastavino system was indicated in the original design drawn by Murphy, concrete shell was applied in the end. The first part combs up the intellectual origins and precedents of the campus planning by Henry Murphy. As the dome is a focal point of the study, a brief course on the history of dome construction in the West is needed. The third part, based upon field measurement in July 2013, compares the actual dome with its original design featured by the Guastavino method, deducing possible reasons that resulted in the differences, including architect＇s unfamiliarity with Guastavino Company and its parameters, considerations about cost, and local construction tradition.
