一种基于身份的DH密钥交换协议     

项顺伯 《茂名学院学报》2011,21(6):44-46

基于DH困难问题,提出一种基于身份的两方密钥交换协议,并对协议的安全性进行了分析。所提出的协议中,会话密钥的生成需要参与方的长期私钥和选取的随机数。安全性分析表明,所提出的协议能满足两方密钥交换协议的安全性要求。  相似文献   

人文交流与留学教育——对新时代中俄艺术专业留学教育现象的思考     

廖正定  王路 《科教文汇》2020,(12):22-25,55

本文基于笔者在江西师范大学美术学院及江西师范大学出国留学服务中心的工作感受与经验,分析了从个体角度出发的留学教育模式,结合以不同主导方的需求为导向的人文交流模式,探讨了国际间人文交流与艺术留学教育的关系,继而探讨了在新时代中俄艺术专业留学教育中所出现的新现象及其原因,并根据我们对上述要点的结论,对如何以艺术留学教育为契机推进我国高等教育国际化以及高等院校的艺术学科建设进行了思考与展望。  相似文献   

Anisotropic fluoride nanocrystals modulated by facet-specific passivation and their disordered surfaces     

Ziyu Yang  Huihui Zhang  Junjie Xu  Renzhi Ma  Takayoshi Sasaki  Yu-Jia Zeng  Shuangchen Ruan  Yanglong Hou 《国家科学评论(英文版)》2020,7(5):841

Rutile-type fluorides have been proven to be active components in the context of emerging antiferr-omagnetic devices. However, controlled synthesis of low-dimensional, in particular two-dimensional (2D), fluorides in a predictable and deterministic manner remains unrealized because of a lack of efficient anisotropic control, which impedes their further development in reduced dimensions. We report here that altered passivation of {110} growing facets can direct the synthesis of rutile-type fluoride nanocrystals into well-defined zero-dimensional (0D) particulates, one-dimensional (1D) rods and 2D sheets in a colloidal approach. The obtained nanocrystals show positive exchange bias and enhanced magnetic transition temperature from the coexistence of long-range antiferromagnetic order and disordered surface spins, making them strong alternatives for flexible magnetic devices and sensors.  相似文献   

排球比赛中应用换手扣球技术的可行性研究     

何锋 《武汉体育学院学报》2002,36(4):104-105

对排球的换手扣球技术进行了探讨、研究，认为换手扣球技术在排球比赛中的应用是可行的，应该进行推广。并对这一技术将会给我国排球4号位强攻和2、3号位的集体进攻战术带来一系列变化和发展进行了分析。  相似文献   

Heisenberg and ferromagnetism     

S.?ChatterjeeEmail author 《Resonance》2004,9(8):57-66

Heisenberg’s contributions to the understanding of ferromagnetism are reviewed. The special features of ferromagnetism, vis-a-vis dia and para magnetism, are introduced and the necessity of a Weiss molecular field is explained. It is shown how Heisenberg identified the quantum mechanical exchange interaction, which first appeared in the context of chemical bonding, to be the essential agency, contributing to the co-operative ordering process in ferromagnetism.  相似文献   

数字图书馆领域本体的构建与推理——以医学领域本体为例     

牟冬梅  范轶 《图书情报工作》2007,51(8):0-0

介绍基于MeSH构建预防医学领域本体的基本过程，并利用Racer推理机对本体中的类进行推理研究。  相似文献   

“自学、议论、评价”三环互动教学模式的构建     

纪宏伟 《教育与教学研究》2011,(11):58-60

以"任务型自学—议论交流—评价反馈"为基本程序的教学模式,简称"自学、议论、评价"教学模式,遵循了"最有效的学习方法就是让学生在体验和创造的过程中学习"这一宝贵的教学理念,把教学重点从"教"转移到"学",提升了学生的主体地位,让学生真正成为学习的主人。文章介绍了该教学模式的操作流程,肯定了其教学意义和优势,相信其对教学改革的进一步推进具有一定的理论和实践意义。  相似文献   

Public and private value in citizen participation in E-governance: Evidence from a government-sponsored green commuting platform     

Jingrui Ju  Luning Liu  Yuqiang Feng 《Government Information Quarterly》2019,36(4):101400

Citizen participation in E-governance is, essentially, a social exchange between individuals and their government through which the citizen creates public value as well as acquires private value. The direct effects of participation antecedents on participation outcomes have been fully examined, but few researchers have investigated the internal mechanism of citizen participation at the level of psychological value perception. The roles of perceived public and private value between the participation antecedents and outcomes remain unclear. Private value merits careful research in particular as the E-governance environment is being shaped by increasing privatization and continuous IT innovation. Based on the cognitive integration theory and the civic voluntarism model, this paper proposes a theoretical framework to examine the mediating roles of two values. We built a complete research model encompassing ten hypotheses centered on citizen e-participation in the context of green commuting governance. By analyzing survey data on a green commuting platform, we demonstrate the significant mediating effects of these two values and greater effect of private value acquisition on continuous e-participation intentions than public value creation. Our results have important research implications in regards to the roles of perceived values in participation, especially perceived private value.  相似文献   

中小学跨文化交流中的符号权力与身份认同建构     

杜亮  张旭平 《教育学报》2011,7(5)

基于一项中美学校之间进行的网上跨文化教育交流项目的实践考察,通过把布迪厄的符号权力和符号斗争的概念运用于跨文化交流的分析,研究了参加项目的中国师生的身份认同建构过程.研究结果表明,通过揭示和挑战中国师生社会认知中的二元固化模式,为新的认识世界的方式开辟了空间和可能性;通过增加跨文化交流方面的知识,可以帮助教育者创设能够真实促进跨文化的环境和增进跨文化理解,同时培养师生的平等意识和跨文化交流能力.  相似文献   

关于聋生心理健康教育的研究     

孙玲 《承德师专学报》2015,(2)

特教学校心理健康教育是素质教育的重要组成部分。要使聋生健康心理素质得以形成,必须全面了解和研究聋生的心理。提高聋生的认识水平,培养聋生的道德感和世界观。注重书面语言的情感交流,给聋生以成功的体验。创设交往空间,友善人际关系。开展个别心理辅导,不断创新健康心理教育模式,搭建健康心理发展的平台。  相似文献