Collection Development in the Digital Age: Changing Roles of the National Library of China

With the development of the National Digital Library Project, the National Library of China will collect more digital publications and promote the dissemination of Chinese publications to the world. The collection development policy will be revised in regular basis to reflect the latest development of librarianship in China. However, the general principle will not be changed: to preserve our cultural heritage and to provide service to the users

国家图书馆外文图书采访工作的回顾与展望

A historical review and future prospects of acquisitions of monographs in foreign languages in the National Library of China

News from China

News from Chinese library cataloging community in the year of 2015

FRBR / LRM Lectures in China

Pat Riva’s lectures on FRBR/LRM in Hangzhou, Shanghai and Beijing will have a special importance. I hope more Chinese colleagues will pay attention to the future development of FRBR/LRM

MARC Formats in China: Local or International?

L'applicazione dei formati MARC nelle biblioteche cinesi ha una storia lunga ormai 20 anni. Nell'epoca dell'internazionalizzazione e della digitalizzazione, però, la domanda da porsi è la seguente: perché viene utilizzato l'UNIMARC come base per il CNMARC? È la scelta migliore per i formati bibliografici in Cina? Esistono altre soluzioni? In questo articolo l'autore offre una panoramica di documenti storici, analizzati alla luce dello stato dell'arte dei formati MARC in Cina.The application of MARC formats in Chinese libraries has a history of about 20 years. At the age of internationalization and digitization, people ask the question: why we chose UNIMARC for the basis of CNMARC? Is it the best choice for China? Are there any other options? In this paper, the author reviews many historical documents and analyzes the present status of MARC formats in China

News from China

News from Chinese library cataloging community in the year of 2015

Collection Development in the Digital Age: Changing Roles of the National Library of China

With the development of the National Digital Library Project, the National Library of China will collect more digital publications and promote the dissemination of Chinese publications to the world. The collection development policy will be revised in regular basis to reflect the latest development of librarianship in China. However, the general principle will not be changed: to preserve our cultural heritage and to provide service to the users

On the existence of energetic atoms in the upper atmosphere of exoplanet HD209458b

Stellar irradiation and particles forcing strongly affect the immediate environment of extrasolar giant planets orbiting near their parent stars. Here, we use far-ultraviolet emission spectra from HD209458 in the wavelength range (1180-1710)A to bring new insight to the composition and energetic processes in play in the gas nebula around the transiting planetary companion. In that frame, we consider up-to-date atmospheric models of the giant exoplanet where we implement non-thermal line broadening to simulate the impact on the transit absorption of superthermal atoms (HI, OI, and CII) populating the upper layers of the nebula. Our sensitivity study shows that for all existing models, a significant line broadening is required for OI and probably for CII lines in order to fit the observed transit absorptions. In that frame, we show that OI and CII are preferentially heated compared to the background gas with effective temperatures as large as T_{OI}/T_B~10 for OI and T_{CII}/T_B~5 for CII. By contrast, the situation is much less clear for HI because several models could fit the Lyman-a observations including either thermal HI in an atmosphere that has a dayside vertical column [HI]~1.05x10^{21} cm^{-2}, or a less extended thermal atmosphere but with hot HI atoms populating the upper layers of the nebula. If the energetic HI atoms are either of stellar origin or populations lost from the planet and energized in the outer layers of the nebula, our finding is that most models should converge toward one hot population that has an HI vertical column in the range [HI]_{hot}(2-4)x10^{13} cm^{-2} and an effective temperature in the range T_{HI}(1-1.3)x10^6 K, but with a bulk velocity that should be rather slow.Comment: 15 pages, 10 figures, corrected for typos, references remove