一位院士的情怀对科技期刊编辑的启示——阅读《大家博友》《大师小文》的感悟

针对学术期刊数字化程度与影响力提升的效应问题,重点对江苏省17种中文地学类期刊的网络化建设及应用程度做了调研和量化分析,并将其数据与统计期刊近5年的影响因子和被引频次做了分析比较.结果显示,被统计期刊学术影响力指标的上升趋势,与评价期刊数字化应用程度高低的得分值有很好的对应关系.进一步分析结果表明,代表期刊数字化程度较高的微信运用,有可能对提升科技期刊学术影响力起到意想不到的推动作用.     

简支梁振动试验分析

通过振动试验,得到了简支矩形等截面梁的挠度和频率随荷载变化的曲线,结果与破损模态静力试验结果一致。     

关于变频调速的应用与节能分析

文章通过分析变频器调速的节能原理,并结合一个热电厂的变频器改造后的实例,阐述了变频调速的节能效果,提高了设备运行可靠性和节能降耗性。     

利用引文确定领域关键文献的方法探析

[目的/意义]确定基于引用关系提取关键文献时各种方法的优缺点、适用场合,从而使用户快速捕捉领域重要文献,掌握领域概貌。[方法/过程]基于文献引用关系,从文献被引频次、文献引用网络、文献共被引网络3个角度,结合HistCite、CiteSpace等软件探讨领域关键文献的识别方法,通过同源数据的实际验证,对不同方法进行判别比较。[结果/结论]基于被引频次的方法更适合选择特定领域中哪些文献对总体文献的科学进步产生重大影响角度提取关键文献,对应的关键文献集合呈现非常分散的特性;基于引用网络的方法更适合从特定领域研究动态提取发展过程中的关键文献,对应的关键文献集合呈现非常明显的集中特性;基于共被引网络的方法更适合从特定领域研究基础角度提取关键文献,对应的关键文献集合呈现较强的集中性,且能发现原始采集中未发现的大量关键文献。     

数控教学方法的设计与探讨

数控技术是一门相对新兴的学科,同时也是一门难于掌握和讲授的实用型科目。数控技术将成为现代制造技术的核心技术,因此培养实用型数控技术人才迫在眉睫,职业院校的教师不得不思考如何提高数控教学的质量,让学生能够欣然、自主地学到真正的技能,最终服务于社会。基于这样一种思考,对数控课程的教学方法进行探讨与设计,宗旨是以教助学,以学促教,师生互动,共同进步。     

唐浞的诗歌意象理论

意象历来是诗学研究中的重要课题。在20世纪40年代，九叶诗派诗人、诗学家唐浞通过对诗歌历史与现状的考察，对意象及其特征进行了自己的独特描述，认为意象就是诗歌本身而不只是传达手段，意象是灵魂与意志的凝合，是潜意识与意识之间的桥梁，并认为凝定的“姿”是诗歌意象的形态特征。     

儿童单纯性肥胖的运动干预原理与方法研究

儿童肥胖率持续上升已经成为一个全球性问题,引起了社会各界的高度关注。为能够让更多人了解运动的减肥原理,正确应用运动减肥的方法,有效预防、干预儿童单纯性肥胖,依据儿童身心发展的特征和规律,对儿童单纯性肥胖的危害、诊断方法、表现特征、诱发原因,以及运动干预的原理和方法,做了详细的分析和阐释。     

规则认同、个体学习与转型期社区共享资源合作治理

本文尝试将规则认同偏好、个体信念学习调整纳入多人自愿合作的分析框架,并构建了基于转型期社区共享资源合作治理的博弈理论模型,考察规则认同偏好异质性、个体学习在社区共享资源合作治理中的作用机理,并进行了相应的仿真模拟分析。研究表明,规则认同偏好的异质性影响个体的策略选择调整,进而影响社区共享资源的合作治理,尤其是当政府在部分或完全退出社区共享资源治理情况下,对避免或弥补转型期社区共享资源“治理真空”具有重要的影响作用。此外,自发治理的规则认同程度与合作治理的形成概率成正比,且规则偏好在一定程度上可以缓解共享资源合作治理的成本问题。但随着治理成本的不断上升,规则认同与合作治理两者之间的条件比率呈递减趋势。     

Self-categorization process in sport: An examination of the “Linsanity” phenomenon in Taiwan

The “Linsanity” phenomenon attracted an increase in attention toward the National Basketball Association (NBA) for a short period of time. Drawing on self-categorization theory to elucidate current literature on team identification, this research proposed a conceptual model delineating the social psychological process for international consumers during the phenomenon. Using an online survey with a convenience sample in Taiwan, structural equation modeling, including confirmatory factor analysis (CFA) and path analysis, validated the conceptual model and confirmed the relationships between constructs in the model. Results indicated that Taiwanese identification positively influenced player identification, while player identification mediated the relationship between Taiwanese identification and team identification. Consequently, team identification positively influenced NBA involvement. The research findings together contribute to explicating the mechanism behind consumers’ self-categorization process during the “Linsanity” phenomenon while offering implications for international sport marketing. The research concludes with suggestions for future research.     

Biomechanical characteristics of adults walking forward and backward in water at different stride frequencies

The aim of this study was to examine spatiotemporal characteristics and joint angles during forward and backward walking in water at low and high stride frequency. Eight healthy adults (22.1 ± 1.1 years) walked forward and backward underwater at low (50 pulses) and high frequency (80 pulses) at the xiphoid process level with arms crossed at the chest. The main differences observed were that the participants presented a greater speed (0.58 vs. 0.85 m/s) and more asymmetry of the step length (1.24 vs. 1.48) at high frequency whilst the stride and step length (0.84 vs. 0.7 m and 0.43 vs. 0.35 m, respectively) were lower compared to low frequency (P < 0.05). Support phase duration was higher at forward walking than backward walking (61.2 vs. 59.0%). At initial contact, we showed that during forward walking, the ankle and hip presented more flexion than during backward walking (ankle: 84.0 vs. 91.8º and hip: 22.8 vs. 8.0º; P < 0.001). At final stance, the knee and hip were more flexed at low frequency than at high frequency (knee: 150.0 vs. 157.0º and hip: ?12.2 vs. –14.5º; P < 0.001). The knee angle showed more flexion at forward walking (134.0º) than backward walking (173.1º) (P < 0.001). In conclusion, these results show how forward and backward walking in water at different frequencies differ and contribute to a better understanding of this activity in training and rehabilitation.