改进的RFID双向认证机制分析研究

本文在简单介绍了射频识别技术（RFID）面临的安全问题以及多种RFID安全机制的基础上,对带别名的双向认证机制进行原理的描述与性能的仿真分析,并利用MATLAB软件进行仿真实现和验证。     

一种基于RFID技术的定位算法实现

简单介绍了射频识别的基本原理,特别是在室内定位中的应用。重点介绍了LANDMARC室内定位系统理论及其改进,使其可以更好地应用于实际环境。实验结果表明,改进的算法比原来的算法在定位精度上提高了10%～30%。     

高校考试违纪学生的心理援助

高校考试违纪现象层出不穷,本研究具体探讨大学生考试违纪的心理原因及考试违纪后的心理状态,并提出对考试违纪学生进行心理援助的具体办法,包括情绪缓解、认知转变和学业规划三部分。以此来帮助考试违纪学生更加务实、乐观、积极地开始新一轮的学习生活。     

从罗杰斯的师生观谈如何消除外语课堂上的消极情感

情感因素在人的认知过程中起着非常重要的作用,影响着外语教学的效果。但在实际教学中,情感因素并没有得到足够重视,从而造成了教学效率低下,教学效果不理想。本文从罗杰斯的师生观谈起,从人本主义心理学的角度分析了外语教学课堂中产生消极情感的原因并针对个人学习风格提出相应的教学策略。     

如何利用情感教育提高高中数学教学效率

在新课程理念的指导下,高中数学教改效果显著,情感教育广泛实施,然而课堂教学效率低的问题却始终存在。在高中数学教学中发挥好情感教育的作用,提高课堂教学效率需要广大教育工作者认真研究,总结实施。     

Voluntary and involuntary immigrants and adolescents’ endorsement of multiculturalism

This research examined whether the way in which migrants are defined has implications for majority group adolescents’ evaluation of maintenance of the heritage culture. Using an experimental questionnaire design, the findings demonstrate that when migrants are considered to have left their country on a voluntary basis, endorsement of cultural maintenance is lower than when migration is perceived to be involuntary. This was found to be the case when voluntary immigrants were contrasted with immigrants that have been recruited as labor migrants by the host society (Study 1, N = 843), and when voluntary immigrants were contrasted with immigrants that are forced to leave their country of origin (Study 2, N = 108). Furthermore, Study 2 found similar effects for emigrants. In both studies, national identification was negatively related to support for cultural maintenance. In addition, higher identifiers were more strongly in favor of allowing involuntary emigrants to maintain their own culture than lower identifiers. The implications of this research are discussed.     

图像技术在茶青分拣中的应用研究

在制茶过程中茶青分拣是一个艰难的过程。在介绍了利用图像处理技术,对茶青叶片进行图像预处理、形态学处理以及图像分割等的基础上,分别对叶片图像进行颜色、形状以及纹理特征分析,确定最佳的叶片识别特征参数并计算,并给出了详细方法描述。     

基于城市意蕴的标识环境规划研究

随着中国城市化进程的加快,庞大的商业综合体、超级摩天大厦以及立体化交通枢纽急剧增多,城市空间的复杂性日趋凸显,建设和完善具有城市意蕴的标识环境来满足人们的物质与精神需求是极其必要的。文章结合目前中国城市空间环境标识规划的现状,以研究标识规划中的基本视点为视角,阐述将标识与环境进行系统性规划整合的问题。     

Three-step damage identification method based on dynamic characteristics

A three-step damage identification method based on dynamic characteristics is proposed to improve the structure reliability and security and avoid serious accident. In the proposed method, the frequency and difference of modal curvature （DMC） are used as damage indexes. Firstly, the detection of the occurrence of damage is addressed by the frequency or the square of frequency change. Then the damage location inside the structure is measured by the DMC. Finally, with the stiffness reduction rate as a damage factor, the amount of damage is estimated by the optimization algorithm. The three-step damage identification method has been validated by conducting the simulation on a cantilever beam and the shaking table test on a submerged bridge. The results show that the method proposed in this paper can effectively solve the damage identification problem in theory and engineering practice.     

信息素养视域下的虚假信息甄别:国际进展与我国对策

[目的/意义]从信息素养视角出发,探索公众虚假信息甄别能力的提升路径,为日益严峻的虚假信息现象提供应对之策。[研究设计/方法]运用网络调研、文献调研、案例分析等方法,系统梳理了全球提升公众虚假信息甄别能力的实践和研究发展历程,列举了新闻传播、健康医疗和社会管理等场景下的虚假信息甄别实践,总结英国、美国、芬兰等发达国家的发展经验,分析当前全球实践与研究中面临的问题,并据此提出我国的发展之策。[结论/发现]虚假信息甄别相关研究不断深入、实践场景不断拓展。发达国家采取的政策、图书馆服务和教育等手段有效提升了公众虚假信息甄别能力。然而纵观全球,仍存在发展失衡、教学资源建设不完善、研究不够充分等问题。我国应尽快完善针对虚假信息现象的信息素养政策,开展图书馆虚假信息甄别服务,将信息素养知识融入义务教育体系。[创新/价值]丰富了信息素养相关理论研究,提出了我国公众虚假信息甄别能力的提升之策。