The Taishan Antineutrino Observatory(TAO)is a satellite experiment of the Jiangmen Underground Neutrino Observatory,located near the Taishan nuclear power plant(NPP).The TAO aims to measure the energy spectrum of reac...The Taishan Antineutrino Observatory(TAO)is a satellite experiment of the Jiangmen Underground Neutrino Observatory,located near the Taishan nuclear power plant(NPP).The TAO aims to measure the energy spectrum of reactor antineutrinos with unprecedented precision,which would benefit both reactor neutrino physics and the nuclear database.A detector geometry and event visualization system was developed for the TAO.The software was based on ROOT packages and embedded in the TAO offline software framework.This provided an intuitive tool for visualizing the detector geometry,tuning the reconstruction algorithm,understanding neutrino physics,and monitoring the operation of reactors at NPP.Further applications of the visualization system in the experimental operation of TAO and its future development are discussed.展开更多
Based on interpretation of Dao De Jing(a book written by LAO Zi),the connotation of "Tao" had been analyzed and it emphasized that Taoism is the most basic and eternal universal law transcending physical exi...Based on interpretation of Dao De Jing(a book written by LAO Zi),the connotation of "Tao" had been analyzed and it emphasized that Taoism is the most basic and eternal universal law transcending physical existence and the origin of all changes.It pointed out that garden art was integrated art of time and space,Taoism had made profound effect on Chinese landscape art,and its philosophical thought was the important theoretical support for garden artistic creation.On this basis,it laid stress on great influence on artistic creation of Chinese garden produced by Taoist dialectical thoughts and Taoist thoughts such as "Taoism following nature","unity between heaven and human",and "immortal belief";and found ideological source for Chinese landscape art to pursue artistic spirit of natural beauty,uphold designing principle of harmonious coexistence between human and nature,and take supernatural being and fairyland legend as the design version.It also analyzed that Taoist philosophical thought happened to coincide with contrast methods of garden art involving tangibility and intangibility,falsehood and reality,internality and externality,bigness and smallness,highness and lowness,rising and falling,sparseness and denseness,exposedness and unexposedness,and so on.It highlighted artistic charm of "prospect generating beyond images" as the core connotation of Chinese classical garden art;emphasized frequently-used me-thods for garden spatial organization,spatial guidance and indication,layout pattern,arrangement of scenic spots and disposition of landscaping plants which were produced under the influence of Taoism,making Chinese garden be of more implicitness,interestingness and orient glamour.展开更多
Based on the contents and temperament of pastoral poetries written by TAO Yuan-ming,by centering on respecting the nature,indifference and optimism,and plainness and authenticity,the paper had analyzed aesthetic ideol...Based on the contents and temperament of pastoral poetries written by TAO Yuan-ming,by centering on respecting the nature,indifference and optimism,and plainness and authenticity,the paper had analyzed aesthetic ideologies contained in his poetries.On this basis,it had discussed the influence of aesthetic ideology of TAO Yuan-ming on the style of classical gardens in South China,which were quiet and natural,elegant and fresh,simple and plain,and far-reaching in artistic conception.By combining with cases,it pointed out that the poetic prose had been directly quoted as the names of gardens or scenic spots of classical gardens in South China,and showed that the aesthetic ideology of TAO Yuan-ming had set up a successful ideal model for cultural landscapes,producing far-reaching influence on the aesthetic state of mind of gardeners or owners of gardens,further instilling humanistic spirit into classical gardens in South China.展开更多
Cometary nuclei, the remnant icy bodies of planet formation, located at the outer edge of the solar system, are relatively poorly studied because of their small sizes and thus faintness. Thus far more than a hundred l...Cometary nuclei, the remnant icy bodies of planet formation, located at the outer edge of the solar system, are relatively poorly studied because of their small sizes and thus faintness. Thus far more than a hundred large members (size about 100 km) of this cometary population in the Kuiper belt have been identified. Smaller bodies (10 km) are much too faint to image directly and their number so far can only be extrapolated on theoretical grounds. The Taiwan-America Occultation Survey (TAOS) will conduct a census of the number of Kuiper belt objects down to a few km size by monitoring chance stellar occultations by these cometary nuclei. We will set up an array of small (50cm), wide-field (f/1 9) telescopes, each equipped with a 2K squared CCD camera, along a 7 km baseline in central Taiwan at an elevation above ～ 3000 m. The robot telescopes will operate in a coincidence mode, so the sequence and timing of any candidate occultation event can be recorded and distinguished against a false detection. The Lawrence Livermore National Laboratory, the National Central University, and the Academia Sinica, will each contribute one telescope system. Researchers from an international variety of institutes are also participating in the project. Our experiment provides the only means to study the cometary population in the small-sized end of the distrbution. A great number of scientific byproducts, notably variable stars, will also derive from the huge TAOS database, some 10, 000 giga-bytes worth of photometrical measuremements per year.展开更多
基金supported by the National Natural Science Foundation of China(Nos.12175321,11975021,and 11675275)the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA10010900)。
文摘The Taishan Antineutrino Observatory(TAO)is a satellite experiment of the Jiangmen Underground Neutrino Observatory,located near the Taishan nuclear power plant(NPP).The TAO aims to measure the energy spectrum of reactor antineutrinos with unprecedented precision,which would benefit both reactor neutrino physics and the nuclear database.A detector geometry and event visualization system was developed for the TAO.The software was based on ROOT packages and embedded in the TAO offline software framework.This provided an intuitive tool for visualizing the detector geometry,tuning the reconstruction algorithm,understanding neutrino physics,and monitoring the operation of reactors at NPP.Further applications of the visualization system in the experimental operation of TAO and its future development are discussed.
文摘Based on interpretation of Dao De Jing(a book written by LAO Zi),the connotation of "Tao" had been analyzed and it emphasized that Taoism is the most basic and eternal universal law transcending physical existence and the origin of all changes.It pointed out that garden art was integrated art of time and space,Taoism had made profound effect on Chinese landscape art,and its philosophical thought was the important theoretical support for garden artistic creation.On this basis,it laid stress on great influence on artistic creation of Chinese garden produced by Taoist dialectical thoughts and Taoist thoughts such as "Taoism following nature","unity between heaven and human",and "immortal belief";and found ideological source for Chinese landscape art to pursue artistic spirit of natural beauty,uphold designing principle of harmonious coexistence between human and nature,and take supernatural being and fairyland legend as the design version.It also analyzed that Taoist philosophical thought happened to coincide with contrast methods of garden art involving tangibility and intangibility,falsehood and reality,internality and externality,bigness and smallness,highness and lowness,rising and falling,sparseness and denseness,exposedness and unexposedness,and so on.It highlighted artistic charm of "prospect generating beyond images" as the core connotation of Chinese classical garden art;emphasized frequently-used me-thods for garden spatial organization,spatial guidance and indication,layout pattern,arrangement of scenic spots and disposition of landscaping plants which were produced under the influence of Taoism,making Chinese garden be of more implicitness,interestingness and orient glamour.
基金National Natural Science Foundation of China under Grants(50772112,90922003,50872135)the Director Foundation of Anhui Institute of Optics and Fine Mechanics
基金Supported by Fund for Scientific Research of Nanjing University of Finance and Economics (B2010017)~~
文摘Based on the contents and temperament of pastoral poetries written by TAO Yuan-ming,by centering on respecting the nature,indifference and optimism,and plainness and authenticity,the paper had analyzed aesthetic ideologies contained in his poetries.On this basis,it had discussed the influence of aesthetic ideology of TAO Yuan-ming on the style of classical gardens in South China,which were quiet and natural,elegant and fresh,simple and plain,and far-reaching in artistic conception.By combining with cases,it pointed out that the poetic prose had been directly quoted as the names of gardens or scenic spots of classical gardens in South China,and showed that the aesthetic ideology of TAO Yuan-ming had set up a successful ideal model for cultural landscapes,producing far-reaching influence on the aesthetic state of mind of gardeners or owners of gardens,further instilling humanistic spirit into classical gardens in South China.
文摘Cometary nuclei, the remnant icy bodies of planet formation, located at the outer edge of the solar system, are relatively poorly studied because of their small sizes and thus faintness. Thus far more than a hundred large members (size about 100 km) of this cometary population in the Kuiper belt have been identified. Smaller bodies (10 km) are much too faint to image directly and their number so far can only be extrapolated on theoretical grounds. The Taiwan-America Occultation Survey (TAOS) will conduct a census of the number of Kuiper belt objects down to a few km size by monitoring chance stellar occultations by these cometary nuclei. We will set up an array of small (50cm), wide-field (f/1 9) telescopes, each equipped with a 2K squared CCD camera, along a 7 km baseline in central Taiwan at an elevation above ～ 3000 m. The robot telescopes will operate in a coincidence mode, so the sequence and timing of any candidate occultation event can be recorded and distinguished against a false detection. The Lawrence Livermore National Laboratory, the National Central University, and the Academia Sinica, will each contribute one telescope system. Researchers from an international variety of institutes are also participating in the project. Our experiment provides the only means to study the cometary population in the small-sized end of the distrbution. A great number of scientific byproducts, notably variable stars, will also derive from the huge TAOS database, some 10, 000 giga-bytes worth of photometrical measuremements per year.
