由多模数三元三次方程组实现具有冗余信息的Hill密码体系

研究多模数三元三次同余方程组数值解法,且运用于经典Hill密码体系中,得到一种带有冗余信息的Hill密码体系.该加密方法因有信息冗余,使得解密信息具有一定的欺骗性.数值算例验证了这种新的Hill密码体系的正确性,且比传统、经典的Hill密码体系更具安全性.     

How to repair the Hill cipher

INTRODUCTION Owing to the advance in network technology, information security is an increasingly important problem. Popular application of multimedia tech- nology and increasingly transmission ability of net- work gradually leads us to acquire information di- rectly and clearly through images. Hence, data secu- rity has become a critical and imperative issue. Hill cipher is a block cipher that has several advantages such as disguising letter frequencies of the plaintext, its simplicity be…     

Soundscape of the West Lake Scenic Area with profound cultural background—a case study of Evening Bell Ringing in Jingci Temple,China

From the case study of Evening Bell Ringing at Nanping Hill,one of the West Lake Cultural Landscapes in Hangzhou,China,we investigated the soundscape of a scenic area with a profound cultural background.First,we conducted the soundscape physical index of the area in both winter and spring seasons to analyze its objective graphical expression.Second,we focused on people’s reactions to the soundscape in order to obtain a subjective evaluation of each component in the soundscape and integrated environment.Then,the relationship between the objective data and the subjective evaluation was analyzed.Finally,the impacts of the natural environment,history,and cultural factors on the evaluation of the Jingci Temple soundscape were studied.It was found that natural sounds,cultural sounds,and historic sounds were widely acclaimed in people’s subjective feelings,which indicated the close relationships among historical and cultural background,soundscape,and natural environment.Thus,the conclusion was made that soundscape should be consistent with the local natural environment and the historical and cultural background.     

澄海鸡笼山出土陶瓷残片的清理及初步研究

1991年出土于澄海樟林古港附近的鸡笼山麓的一批陶瓷残片，不久前完成了分阶段性的清理工作。清理结果表明，出土物中包括了带有190种款识的清代陶瓷标本；出土地点的性质，很可能是明清时期闽粤赣边经济区内部，贸易中心城市潮州城与外贸港口樟林之间水陆转运过程损毁瓷器的堆积地；而这些瓷片在特征上与明清外销瓷“汕头器”相吻合，说明了有清一代的樟林港是“汕头器”的输出港之一。     

试析《菉竹山房》中二姑姑人生悲剧的原因

该文以接受主义美学为指导,用文化学批评和心理学批评的方法,对现代著名作家、学者吴组缃的短篇力作《菉竹山房》进行分析。指出道德至上的价值观念,"怨而不怒"的中庸处世方式,是二姑姑人生悲剧的根本原因和直接原因。从而指出《菉竹山房》应该称之为文化批判小说。     

A new context for understanding civic responsibility: Relating Culture to Action at a Research University

Civic responsibility as an ideal of higher education is rarely considered through a cultural and theoretical lens. Swidler’s (1986, American Sociological Review, 51: 273–286) framework linking ideology, culture and action was used in this ethnographic study of a research university (a) to understand dominant institutional beliefs about civic responsibility and (b) to understand how institutional culture contributes to a unique approach to civic responsibility. This study examined campus ideologies and cultural forms that addressed five dimensions of civic responsibility: (a) knowledge and support of democratic values, systems and processes, (b) desire to act beneficially in community and for its members, (c) use of knowledge and skills for societal benefit, (d) appreciation for and interest in those unlike oneself, and (e) personal accountability. The “role model” approach emerged as a unique institutional approach to civic responsibility and aligned with Swidler’s framework. Findings are significant for both organization studies and student development research.     

基于希尔方程优化无氧运动能力测试方法的研究

用Wingate无氧试验方法进行最大输出功率的测量,依此来评价运动员的无氧能力的好坏的方法在国内外被广泛地应用。根据希尔方程的原理,本研究认为该测量方法具有其局限性。为了解决该问题,提出了多负荷测试的方法。为了检验该方法,用无氧功率自行车Monark 894E对8名体育专业的学生进行了测试,所得数据通过数理统计分析,认为可以建立个体最大输出功率的评价标准,用此标准可以动态地评价运动员的无氧能力。     

淄博奂山考辨

奂山是淄博市淄川城西北的一座秀丽小山，蒲松龄先生特别钟情奂山，淄川县志中多次记载了奂山山市现象。2004年淄博师专新校区落成于奂山南麓，系统深入地挖掘奂山文化必将有助于淄博师专校园文化的建设和凝炼。我们在实地勘察、走访当地百姓及研究相关文献资料的基础上，详尽地考证了奂山山名及方位，推断出了奂山碧霞宫的初建年代，再现了民国年间奂山寺庙的基本概貌与历史变迁。     

J. Sterling Morton: Author of arbor day

J. Sterling Morton, an outstanding frontier orator in the latter half of the nineteenth century, enjoyed little political success, but through continual promotion of tree culture became the founder of Arbor Day.