AG2助磨剂的助磨作用及对水泥性能的影响

在对几种单组分试剂的助磨作用试验的基础上,着重研究了双组分AG2复合助磨剂对水泥粉磨助磨效果及主要性能的影响.试验结果表明:AG2系列助磨剂的助磨效果较好,使水泥的粉磨细度提高了38.45%,其中AG28使3 d2、8 d抗压强度分别提高20.72%、13.73%,特别是用量为0.01%的AG210,使细度提高62.78%,使28 d抗压强度提高12.06%,具有明显的增产节能降耗、提高产品质量的作用.     

Effects of audiovisual stimuli on psychological and psychophysiological responses during exercise in adults with obesity

The present experiment sought to further understanding of the effects of personalised audiovisual stimuli on psychological and psychophysiological responses during exercise in adults with obesity. Twenty-four participants (M_age = 28.3, SD = 5.5 years; M_BMI = 32.2, SD = 2.4) engaged in self-paced exercises on a recumbent cycle ergometer and three conditions (sensory stimulation [ST], sensory deprivation [DE], and control [CO]) were administered. Perceptual (attentional focus and perceived exertion), affective (affective state and perceived activation), and psychophysiological (heart rate variability) parameters were monitored throughout the exercise bouts. A one-way repeated measures analysis of variance was used to compare self-reported and psychophysiological variables (main and interaction effects [5 Timepoints × 3 Conditions]). The results indicate that ST increased the use of dissociative thoughts throughout the exercise session (η_p² = .19), ameliorated fatigue-related symptoms (η_p² = .15) and elicited more positive affective responses (η_p² = .12) than CO and DE. Accordingly, personally-compiled videos are highly effective in ameliorating exertional responses and enhancing affective valence during self-paced exercise in adults with obesity. Audiovisual stimuli could be used during the most critical periods of the exercise regimen (e.g., first training sessions) when individuals with obesity are more likely to focus on fatigue-related sensations.     

Influence of Cultural Orientations on Electronic Word-of-Mouth (eWOM) in Social Media

This study explores how horizontal/vertical individualism and collectivism (HVIC) orientations influence electronic word-of-mouth (eWOM) (i.e., opinion leadership and opinion seeking) in social media. Online survey panel data through Amazon MTurk were collected from American social media users to address the research purpose. The results, using the structural equation modeling, show that the paths from horizontal individualism to opinion leadership, vertical individualism to opinion leadership and opinion seeking, horizontal collectivism to opinion leadership, and vertical collectivism to opinion leadership and opinion seeking were significant. This study provides theoretical and managerial implications regarding the influence of HVIC orientations on eWOM in social media.     

应用型工科院校电工电子类课程双语教学模式探索

本文通过借鉴、分析各高校开展双语教学的方式,结合自身办学的条件和特点,提出了在应用型工科院校开展双语教学的新教学模式,依托这种积极的教学模式可以促进学生综合素质的全面提高。     

中国B2C电子商务中消费者信任前因的实证研究

网上信任危机限制了消费者进行在线交易,提高消费者对在线公司的信任度是促进中国B2C电子商务发展的重要途径。论文对影响中国消费者对在线公司信任的因素进行了实证研究。研究发现,网站隐私保护与安全控制措施及政策、公司的规模与品牌是最重要的因素,消费者个体特征和公司网站的易用性等品质因素对信任没有显著影响。公司应该在安全技术及政策、规模以及知名度等方面采取措施来提高消费者对在线公司的信任度。     

民事诉讼电子送达制度研究

电子送达在信息化时代有着极其广阔发展空间。通过普及电子送达的正确认识、完善电子送达程序规制、加强电子送达技术及相关设备保障,进而推行电子送达在全国法院系统有效落实和开展,这将有助于民事诉讼效率价值实现,保证当事人诉讼权利,同时也适应了信息化时代要求。     

《高频电子线路》课程“振幅解调”教学策略

介绍两种常用的调幅信号解调方法,即同步检波法、包络检波法。采用对比教学法帮学生建立振幅解调的完整知识体系。引导学生设计简易二极管包络检波电路并观察解调失真。初步探索在高频电子线路课程中理论、实践相结合的新思路、新途径。     

"模拟电子技术"整合教学及网络课程的建设原则

提出了一种新型的“模拟电子技术”教学模式－整合教学,重点阐述了该模式如何将教学目标、方法与现代信息技术进行整合的基本内容,介绍了该模式网络课程建设的整合性与一般性等八个基本原则。     

高校图书馆纸电同步采购的探索与实践——以辽宁师范大学图书馆为例

纸电同步是数字化时代出版行业发行业务发展的大趋势,同时,新冠疫情防控要求促使高校图书馆将纸电同步采购提上议事日程,在一定程度上推动了纸电同步出版的发展进程。文章分析了高校图书馆纸电同步采购的必要性,结合辽宁师范大学图书馆开展纸电同步采购的实践经验和遇到的问题,提出纸电同步采购的对策和建议。     

电子政务绩效评估现状分析及对策

在分析和借鉴国内外电子政务绩效评估经验成果的基础上,研究了目前我国电子政务绩效评估所面临的主要问题,并针对存在的问题和我国信息化发展程度,探讨性提出电子政务绩效评估的建议,以便客观、科学、有效地进行电子政务的绩效评估。