基于NTRU的一种签名体制的构造

本文利用多项式星乘求逆与模p求逆的困难性提出一种数字签名方案,并讨论了该方案的安全性。     

The Controlled Digital Lending Model by Libraries in the Digital Transformation北大核心

Controlled Digital Lending(CDL) is a new model by which libraries digitize materials in their collection and make them available for controlled lending. CDL was initially introduced 10 years ago and has been developed quickly after 2020. This paper sorts out the concept and development of CDL, and divides the process of CDL into embryonic stage(2011-2017), exploratory stage(2018-2019) and development stage (2020 to present). In the embryonic stage, although there were related research and attempts, the specific concept of CDL had not been formed and the practice was not enough. In the exploratory stage, the concept and core principles of CDL had been defined and received plenty of attention in the American library community. During the development stage, the COVID-19 pandemic has brought opportunities for CDL to globalize, and CDL is supported by the library circle around the world. This paper analyzes the feasibility of CDL according to the relevant laws and regulations in the United States, Europe and the international community. In the United States, CDL is mainly based on the principle of first sale doctrine and fair use; in Europe, CDL is mainly related to relevant directives and copyright restrictions and exceptions; among the international community, CDL basically complies with the relevant provisions of the three-step test. This paper summarizes the status quo and specific operation mode of CDL practice abroad, in the hope of providing suggestions for the specific practice of CDL in Chinese university libraries. The authors sort out the official website documents of well-known foreign library organizations and CDL tool development institutions, summarize foreign practical cases of CDL, and analyze related application cases in foreign university libraries and CDL tool. This paper discusses the legal possibility of implementing CDL in China. A further review of relevant domestic laws has found that, although the Copyright Law of the People’s Republic of China only stipulates 12 acts that can use works without permission and remuneration, the court can still determine that the mode of CDL constitutes fair use based on the general provisions of the fair use in dealing with cases related to CDL. Lastly, this paper points out that China’s libraries, especially university libraries, shall limit the books types, reasonably apply CDL tools, actively cooperate with publisher, and build the platform of digital lending resources sharing to promote the digital services transformation of physical library in CDL way. 38 refs. © 2023, Editorial Office of Journal of Library Science in China. All rights reserved.     

数字时代档案工作理论与实践的宏观认识

文章从数字时代的含义及其特征、数字时代档案工作内涵新变化、数字时代档案工作实践新内容、数字时代档案工作理论新探讨和数字时代档案工作者的新职责等方面梳理和总结了数字时代档案工作理论与实践的发展现状。旨在为我国即将编制十二五规划之时减少雾里看花的迷茫,更好的理清下一步思路,为科学地把握好未来的发展方向提供参考。     

The Role of the Serials Vendor in the Collection Assessment and Evaluation Process

No abstract available for this article.     

试析智慧校园的构建

提出了数字校园发展的一个更高的阶段——智慧校园,分析了智慧校园的概念、特征及总体构架、建设内容,并展望了智慧校园的发展前景。     

基于DDS和FPGA的多制式数字调制源的设计

介绍了DDS芯片AD9852和FPGA（现场可编程门阵列）相结合的全数字方法,直接在70MHz中频上实现多制式信号调制。通过FPGA编程实现对DDS所产生的多种不同调制信号的控制,从而实现远距传输信息的目的。     

现代信息技术环境下的“数字视频”新概念

在现代信息技术环境下,"数字视频"的踪影无处不在。但是,人们对数字视频这一概念还存在有较为模糊的认识,甚至是混淆和缺失的认识。基于这一点,笔者认为有必要对现代信息技术环境下的"数字视频"给出一个更能准确表达这一概念的定义和分类,并充实其概念内涵,借以方便对大众的现代信息技术教育和各行各业的使用、交流以及相关基础理论的研究。     

数字人文的理论化趋势前瞻

数字人文近年来发展迅速,但是学者们主要关注作为一种方法论实践的数字人文,而对数字人文自身的理论建设较为漠视;缺乏理论内核的数字人文呈现一种数据库建设多于学科研究、论辩多于创新的现象,表面上轰轰烈烈,却缺少进一步发展的动力和灵魂。本文呼吁重视数字人文的学科建设和理论研究。从"人文"的内涵出发,指出数字人文是"人文学科"的延伸和发展,是多门学科共同构成的一个新领域,其对人文的作用已经超越了工具或方法的使用,丰富了人文科学的内涵,是一种质的变革;辨析了与数字人文相关的人文学科、人文科学和人文主义等概念,基于麦卡蒂的方法论共同体与卡拉托斯的科学哲学理论构建了数字人文研究的理论框架,其由数字人文的基础理论、方法论、具体工作内容与研究领域构成。图1。参考文献11。     

我国档案微信公众号榜单的发展、特点与趋势

以微信公众号为代表的社交媒体在各类主体中得到广泛的应用,为档案事业的发展起到重要推动作用。档案微信公众号榜单则成为评价档案微信公众号传播影响力的重要参考。回顾档案微信公众号榜单创建的背景与过程,分析榜单的现状及影响,总结榜单的特点,有利于明确榜单发展趋势。     

北美国家档案馆网站用户参与特色模块分析——以美国国家档案与文件署DocsTeach与加拿大国家图书档案馆Co-Lab模块为例

互联网时代,档案网站用户参与模块的建设完善程度往往决定着网站的优化程度,北美国家档案馆网站设置多种用户参与形式。本文选取美国和加拿大国家档案馆网站用户参与特色模块“DocsTeach”和“Co-Lab”进行研究,详细介绍并分析模块特色。研究发现,“Doc⁃sTeach”和“Co-Lab”模块分别从教育和贡献入手,创新参与形式,提高用户参与度,最终产生增强用户体验、培养公众档案意识以及使档案资源达到高度利用的积极影响。