In 1974 the author preliminarily reported two new platinum group minerals—daomanite and hongshiite. The two minerals were accepted by the Commission on New Minerals and Minerals Names of the International Mineralogic...In 1974 the author preliminarily reported two new platinum group minerals—daomanite and hongshiite. The two minerals were accepted by the Commission on New Minerals and Minerals Names of the International Mineralogical Association in 1976 and 1982 respectively. Because of the conditions at that time, the work was preliminary, for example, there were only reflectance values of four wave bands. Recently the author again made measurements of reflectances, corrected cell parameters by the four-circle diffractometer and electron diffraction and supplemented their new occurrences and nomenclature.展开更多
As China's economic development turns into the "New Normal," the focus of urban development and construction have transformed from "physical expansion" to "built-up area improvement."...As China's economic development turns into the "New Normal," the focus of urban development and construction have transformed from "physical expansion" to "built-up area improvement." Street, as the most fundamental component of public space, is of great significance to be interpreted and studied. This study attempts to quantify all the composing elements in urban streets to create "Street Portraits" which can clearly describe the characteristics of the street. Taking Beijing as an example, this study aims to make a comprehensive and objective evaluation of the streets in the Old City of Beijing. Methodologically, the properties of a street are identified and categorized into three aspects: street function, street vitality, and street quality, which further helps establish an evaluation indicator system for the "Street Portraits." In result, various "Street Portraits" of the Old City of Beijing are presented by data visualization, by using the Nightingale Rose diagram tool to integrate all the indicators of individual streets and thus describing the distinctive "Street Portraits." In the end, the paper discusses how the finding can influence the street space improvement and design in the future.展开更多
In the current data-intensive era, the traditional hands-on method of conducting scientific research by exploring related publications to generate a testable hypothesis is well on its way of becoming obsolete within j...In the current data-intensive era, the traditional hands-on method of conducting scientific research by exploring related publications to generate a testable hypothesis is well on its way of becoming obsolete within just a year or two. Analyzing the literature and data to automatically generate a hypothesis might become the de facto approach to inform the core research efforts of those trying to master the exponentially rapid expansion of publications and datasets. Here, viewpoints are provided and discussed to help the understanding of challenges of data-driven discovery.展开更多
New SHRIMP data for zircons separated from a metadacite interbedded with banded iron formation(BIF)in the Mbalam region of southern Cameroon provide a 2883±20Ma age for the commencement of BIF deposition in the C...New SHRIMP data for zircons separated from a metadacite interbedded with banded iron formation(BIF)in the Mbalam region of southern Cameroon provide a 2883±20Ma age for the commencement of BIF deposition in the Congo craton.Separated zircons from the associated metadacite are brown and euhedral to subheral in form with distinct oscillatory zoning typical of magmatic signatures.These zircons lack internal resorption features and serrated zone boundaries as should be expected of zircons inherited from the surrounding basement rocks or multiple magmatic plumbing events.展开更多
Tectonic evolution and paleogeography of the two major continental blocks Fennoscandia and VolgoSarmatia during their docking to form the East European Craton(Baltica)at 1.8–1.7 Ga represent important‘puzzle
The united front work is an important part of the general pattern of united front work, and it is an important part of the party building in colleges and universities. It involves broad, comprehensive, democratic, non...The united front work is an important part of the general pattern of united front work, and it is an important part of the party building in colleges and universities. It involves broad, comprehensive, democratic, non-party intellectuals, Religion, returned overseas Chinese, Taiwan compatriots and Taiwan overseas students and other aspects of the task, is the microcosm of the united front work and the window. Colleges and universities is an important base for cultivating talents. Teachers ‘teaching level and ideology and morality all directly affect young students’ outlook on life and values. Fully mobilize the enthusiasm and creativity of non-party people, is conducive to schools to complete the dissemination of knowledge, training the sacred mission of talent, help to promote the work of the school center to complete. The wide application of new media has provided new opportunities and new challenges for the united front work in colleges and universities.展开更多
Building the new countryside construction database plays an important role in improving the construction efficiency,and enhancing the level of major project management.On the basis of detailed analysis of features of ...Building the new countryside construction database plays an important role in improving the construction efficiency,and enhancing the level of major project management.On the basis of detailed analysis of features of the new countryside construction data,we give an overview of the database design based on ArcSDE and SQL Server,and elaborate the association between data classification organization,database conceptual design,logical design,spatial data,and thematic attribute data.Finally,taking the provincial new countryside demonstration zone in Yanjiang District of Sichuan Province for example,we build the new countryside construction database.展开更多
A new compound K6FeNb15O42 was prepared for the first time by solid state reaction in K2O-Fe2O3-Nb2O5 ternary system. The X-ray powder diffraction data of the title compound was measured. K6FeNb15 O42 crystallizes in ...A new compound K6FeNb15O42 was prepared for the first time by solid state reaction in K2O-Fe2O3-Nb2O5 ternary system. The X-ray powder diffraction data of the title compound was measured. K6FeNb15 O42 crystallizes in the hexagonal system with unit cell parameters, a = 9. 1320(4) A ,c = 12. 0670(9) A , and space group P63/mcm (193) , z = 1. The calculated and measured densities are 4. 489 g/cm3 and 4. 485 g. cm3, respectively.展开更多
A new compound K6FeNb15O42 u(?) prepared for the first time by solid state reaction in K2O-Fe2O3-Nb2O5 ternary system. The XRD data of the title compound was determined. K6FeNb15O42 crystallizes the hexagonal system w...A new compound K6FeNb15O42 u(?) prepared for the first time by solid state reaction in K2O-Fe2O3-Nb2O5 ternary system. The XRD data of the title compound was determined. K6FeNb15O42 crystallizes the hexagonal system with unit cell parameters a=9. 1320(4) A,c=12. 0670(9) A, and space group P63/mcm(193) , 2=1. The calculated and measured densities are 4. 489 g/ cm3 and 4. 485 g. cm3, respectively.展开更多
文摘In 1974 the author preliminarily reported two new platinum group minerals—daomanite and hongshiite. The two minerals were accepted by the Commission on New Minerals and Minerals Names of the International Mineralogical Association in 1976 and 1982 respectively. Because of the conditions at that time, the work was preliminary, for example, there were only reflectance values of four wave bands. Recently the author again made measurements of reflectances, corrected cell parameters by the four-circle diffractometer and electron diffraction and supplemented their new occurrences and nomenclature.
基金jointly funded by the Natural Science Fund of China(51408332)the Project of Humanities and Social Sciences of the Ministry of Education(No.14YCZH140)
文摘As China's economic development turns into the "New Normal," the focus of urban development and construction have transformed from "physical expansion" to "built-up area improvement." Street, as the most fundamental component of public space, is of great significance to be interpreted and studied. This study attempts to quantify all the composing elements in urban streets to create "Street Portraits" which can clearly describe the characteristics of the street. Taking Beijing as an example, this study aims to make a comprehensive and objective evaluation of the streets in the Old City of Beijing. Methodologically, the properties of a street are identified and categorized into three aspects: street function, street vitality, and street quality, which further helps establish an evaluation indicator system for the "Street Portraits." In result, various "Street Portraits" of the Old City of Beijing are presented by data visualization, by using the Nightingale Rose diagram tool to integrate all the indicators of individual streets and thus describing the distinctive "Street Portraits." In the end, the paper discusses how the finding can influence the street space improvement and design in the future.
文摘In the current data-intensive era, the traditional hands-on method of conducting scientific research by exploring related publications to generate a testable hypothesis is well on its way of becoming obsolete within just a year or two. Analyzing the literature and data to automatically generate a hypothesis might become the de facto approach to inform the core research efforts of those trying to master the exponentially rapid expansion of publications and datasets. Here, viewpoints are provided and discussed to help the understanding of challenges of data-driven discovery.
文摘New SHRIMP data for zircons separated from a metadacite interbedded with banded iron formation(BIF)in the Mbalam region of southern Cameroon provide a 2883±20Ma age for the commencement of BIF deposition in the Congo craton.Separated zircons from the associated metadacite are brown and euhedral to subheral in form with distinct oscillatory zoning typical of magmatic signatures.These zircons lack internal resorption features and serrated zone boundaries as should be expected of zircons inherited from the surrounding basement rocks or multiple magmatic plumbing events.
基金funded by grant 14-05-00731 from the Russian Foundation of Basic Research
文摘Tectonic evolution and paleogeography of the two major continental blocks Fennoscandia and VolgoSarmatia during their docking to form the East European Craton(Baltica)at 1.8–1.7 Ga represent important‘puzzle
文摘The united front work is an important part of the general pattern of united front work, and it is an important part of the party building in colleges and universities. It involves broad, comprehensive, democratic, non-party intellectuals, Religion, returned overseas Chinese, Taiwan compatriots and Taiwan overseas students and other aspects of the task, is the microcosm of the united front work and the window. Colleges and universities is an important base for cultivating talents. Teachers ‘teaching level and ideology and morality all directly affect young students’ outlook on life and values. Fully mobilize the enthusiasm and creativity of non-party people, is conducive to schools to complete the dissemination of knowledge, training the sacred mission of talent, help to promote the work of the school center to complete. The wide application of new media has provided new opportunities and new challenges for the united front work in colleges and universities.
基金Supported by Fundamental Research Project of Sichuan Provincial Department of Finance in 2012
文摘Building the new countryside construction database plays an important role in improving the construction efficiency,and enhancing the level of major project management.On the basis of detailed analysis of features of the new countryside construction data,we give an overview of the database design based on ArcSDE and SQL Server,and elaborate the association between data classification organization,database conceptual design,logical design,spatial data,and thematic attribute data.Finally,taking the provincial new countryside demonstration zone in Yanjiang District of Sichuan Province for example,we build the new countryside construction database.
基金Fund by International Centre for Dlffractlon Data.
文摘A new compound K6FeNb15O42 was prepared for the first time by solid state reaction in K2O-Fe2O3-Nb2O5 ternary system. The X-ray powder diffraction data of the title compound was measured. K6FeNb15 O42 crystallizes in the hexagonal system with unit cell parameters, a = 9. 1320(4) A ,c = 12. 0670(9) A , and space group P63/mcm (193) , z = 1. The calculated and measured densities are 4. 489 g/cm3 and 4. 485 g. cm3, respectively.
文摘A new compound K6FeNb15O42 u(?) prepared for the first time by solid state reaction in K2O-Fe2O3-Nb2O5 ternary system. The XRD data of the title compound was determined. K6FeNb15O42 crystallizes the hexagonal system with unit cell parameters a=9. 1320(4) A,c=12. 0670(9) A, and space group P63/mcm(193) , 2=1. The calculated and measured densities are 4. 489 g/ cm3 and 4. 485 g. cm3, respectively.
