中国印刷博物馆藏品鉴赏(十三)——HUZ-1型手动照相排字机

中国印刷博物馆收藏有百余台大小不一、用途各异的印刷设备。这些设备产于19世纪60年代到20世纪90年代,时间跨度超过一个世纪,既有国内自主生产的,也有从国外引进的,包含凸版印刷、平版印刷、凹版印刷、孔版印刷和印后加工设备五大系列。如今这些印刷设备已经退出历史舞台,其承载的工艺技术也被先进科技所替代。但它们作为印刷工业文明的成果,反映了近代印刷科技进步的历史进程,体现了印刷文化和印刷科技的内涵,折射了印刷技术及设备器材创新、创造的辉煌成就。本系列文章通过梳理与研究,力图讲解印刷科技创新、创造故事,展现先人创造和综合利用科学技术的非凡能力,解读兴衰原由,弘扬先人功业,献身复兴鸿图。以史为鉴,开创未来。

Numerical Simulation of Asynchronous Simulated Moving Bed Chromatography

Asynchronous simulated moving bed chromatography (ASMBC), known also as the 'VARICOL' process, is more efficient and flexible than the well-known and traditional simulated moving bed chromatography (SMBC). A detailed model of ASMBC, taking account of non-linear competitive isotherms, mass transfer parameters, and complex port switching schedule parameters, was developed to simulate the complex dynamics of ASMBC.The simulated performance is in close agreement with the experimental data of chiral separation reported in the literature. The simulation results show that ASMBC can achieve the performance similar to SMBC with fewer columns and can achieve better performance than SMBC with the same total column number. All design and operation parameters can be chosen correctly by numerical simulation. This detailed ASMBC model and the numerical technique are useful for design, operation, optimization and scale-up of ASMBC.

Digital Rights Management：Model,Technology and Application

with rapid achievement of current information technology and computing ability and applications,much more digital content such as films,cartoons,design drawings,office documents and software source codes are produced in daily work,however to protect the content being copying,shared or deliberately stolen by inside or outside,digital rights management(DRM) became more and more important for digital content protection.In this paper,we studied various DRM model,technology and application,and first proposed DRM Security Infrastructure(DSI),in which we defined encryption,hash,signature algorithm,watermarking algorithms,authentication,usage control,trusted counter,conditional trace,secure payment,and based on the DSI we then proposed a whole classification approach and architecture of all kinds of DRMs,in which we proposed 6 typical classes of copyrights and content protection DRMs architecture:(1) Software-oriented DRM,(2) e Book-oriented DRM,(3) Video-oriented DRM,(4) Image-Oriented DRM(5) Unstructured data oriented DRM,(6) Text-oriented DRM.Based on the above DSI,we then proposed a dynamic DRM model selection method for various DRM application,which can be adapted dynamically for different technology of different applications,which can provide awhole solution for variant DRM development in a rapid and customized mode.The proposed DRM method,technology and application in this paper provided a common,flexible and extendable solution for variant DRM scenes,and can support rapid and customized development.Moreover,we proposed an opinion that the future life will enter into a new era that the content usage and consumption will not again adopt DRM technology rather than with law,liberty and morality.

Bibliometric Analysis of Global Research Progress on Coastal Flooding 1995–2016

Global research progress on coastal flooding was studied using a bibliometric evaluation of publications listed in the Web of Science extended scientific citation index. There was substantial growth in coastal flooding research output, with increasing publications, a higher collaboration index, and more references during the 1995–2016 period. The USA has taken a dominant position in coastal flooding research, with the US Geological Survey leading the publications ranking. Research collaborations at institutional scales have become more important than those at global scales. International collaborative publications consistently drew more citations than those from a single country. Furthermore, coastal flooding research included combinations of multi-disciplinary categories, including ‘Geology' and ‘Environmental Sciences & Ecology'. The most important coastal flooding research sites were wetlands and estuaries. While numerical modeling and 3 S(Remote sensing, RS; Geography information systems, GIS; Global positioning systems, GPS) technology were the most commonly used methods for studying coastal flooding, Lidar gained in popularity. The vulnerability and adaptation of coastal environments, their resilience after flooding, and ecosystem services function showed increases in interest.

Between Manuscript and Print： Literary Reception in Late Medieval France. The Case of the Songe de la Pucelle

Based on original archival and codicological research, this paper in- vestigates the transformations and negotiations between manuscript and printed versions of fifteenth-century poetry through the specific example of one surprisingly complex debate poem, Le Songe de la Pucelle （The Dream of the Virgin）. Our debate relates the choice that a female narrator must make between the respective appeals of two personifications, Love and Shame, who appear to her in a dream- vision. The manuscript tradition invariably collects the poem with other fifteenth- century debates and moral texts, while the early printed copies tended to have experienced a prior separate circulation and often remain as monotextual pamphlets. Manuscript and printed copies of the same poem seem, then, to target different audiences. My paper investigates this curious divergence in the transmission pattern of the manuscript and printed versions of the Songe and seeks possible answers in the very different sets of images accompanying the text in manuscript and printed versions.