长尾理论在图书馆的应用   总被引：21，自引：0，他引：21  

宓永迪 《图书馆杂志》2007,26(5):11-13

通过对图书馆数字资源利用率的统计,发现存在和传统文献利用率“二八”现象不同的长尾现象。对产生这一现象的原因进行了分析,并讨论了这一现象对于图书馆读者服务和资源建设的启示。  相似文献   

Grounded theory analysis of e-government initiatives: Exploring perceptions of government authorities     

Jungwoo Lee  Jinhwa Kim 《Government Information Quarterly》2007

  相似文献   

Managing IT-enabled transformation in the public sector: A case study on e-government in South Korea     

Hyun Jeong Kim  Gary Pan  Shan Ling Pan 《Government Information Quarterly》2007

The implementation of e-government is a burgeoning phenomenon across the globe. It improves and enhances the infrastructures and services provided to the citizens. However, a review of the IS literature reveals that research on the implementation of e-government is rather limited, which could be due to the general misconception of the public sectors as rigid and risk-averse establishments. The shortage of studies on e-government’s implementation presents a knowledge gap that needs to be plugged. This gap is significantly amplified by the increasing number of e-government initiatives being implemented by governments in recent years. This paper describes and analyzes South Korea’s Supreme Court Registry Office, which has implemented e-government. The case study discusses practical implications and suggests future research areas. Findings of the study include the alignment of technology and business processes, integration of resources into core business activities, integrating stakeholders’ trust and commitment, and better understanding of the role of organizational learning, which can enhance the adoption and institutionalization of e-government initiatives.  相似文献   

对备战2002年冬奥会我国重点速滑运动员进行多维生物学监控的攻关研究--短道速滑、速滑训练探索之五   总被引：3，自引：3，他引：0  

严力  刘文娟  刘贵宝  李欣  米博  赵荫桐 《冰雪运动》2002,(1):1-4

利用目前世界速滑领域先进的的多学科生物监控手段,突出个体化和个体的综合运动能力的研究特点,解决我国重点选手在训练过程中体能状态的生理生化监控、运动技术以及负荷与疲劳程度评估方面存在的问题.研究认为,速滑运动员使用"训练负荷与疲劳程度评估系统"能够有效监控训练负荷与机能反应之间的关系;速滑运动员的机能状态与血尿素和血红蛋白指标有密切关系;利用生物力学手段分析解决我国选手在蹲屈角度、膝关节伸展速度、弯道倾倒角度和频率方面的问题;提供了大量关于速度滑冰训练规律的相关研究资料.  相似文献   

基于模式识别理论的内燃机状态识别研究     

尚国清  沈一飞  宓为建 《上海海事大学学报》1996,(1)

用模式识别的理论和方法，对内燃机气门间隙的识别问题进行了探讨。在分析气门振动力学模型的基础上，通过测取振动信号获得故障特征信息，用模式识别的理论和方法，在建立状态特征模式空间的基础上实现对故障的分类识别。考虑到内燃机振动信号的复杂性，采用了外触发采样和有效截取的方法进行信号的数据采集和分析。  相似文献   

大型回转支承装置故障的综合诊断     

徐子奇  宓为建  沈一飞 《上海海事大学学报》1995,(4)

阐述了大轴承的结构、运动特点及典型故障类型，分析了各种故障的振动、油样和电参量特征，提出了基于振动分析、光铁谱技术及电机电流瞬态检测技术的大轴承故障综合诊断方法，并用该方法对多家企业的７种机型、１２台设备进行了２１次综合测试分析，取得了良好的效果。  相似文献   

Differences between the sexes in the three-dimensional angular rotations of the lumbo-pelvic-hip complex during treadmill running     

Schache AG  Blanch P  Rath D  Wrigley T  Bennell K 《Journal of sports sciences》2003,21(2):105-118

The aims of this experiment were to determine whether there are differences between the sexes in the three-dimensional angular rotations of the lumbo-pelvic-hip complex during running and, if such differences exist, to establish whether factors other than sex can explain the observed differences. A cohort of 44 non-injured runners (22 males, 22 females) who usually ran more than 20 km per week were voluntarily recruited. All trials were conducted on a treadmill at a running speed of 4.0 m x s(-1). Reflective markers were placed over specific anatomical landmarks of the thoraco-lumbar spine, pelvis and femur. Data were captured using a VICON motion analysis system. Females tended to display a greater peak-to-peak oscillation for most of the angular rotations. An offset was the main difference between the male and female group mean waveforms for pelvis anterior-posterior tilt. Forward stepwise regression analysis revealed that sex was the most common variable related to the amplitudes of the angular rotations. Given these results, sport scientists conducting future biomechanical studies using angular data to test hypotheses are advised to be extremely cautious about averaging across male and female participants.  相似文献   

门座起重机变幅平衡梁管理研究     

吴启超  沈家桢  宓为建 《上海海事大学学报》1998,(4)

通过对门座起重机平衡梁的测试和检查,发现铰处腋部有裂纹,经静强度和疲劳强度的计算复校,并与门机测试结果相对照,得到了平衡梁腋部裂纹系疲劳所致的结论。该结论对我国近千台港口门机管理有积极意义。本文对已经开裂的平衡梁所应采用的管理方法进行了探讨。  相似文献   

Examining the Causal Relationships Among Selected Antecedents of Responsible Environmental Behavior     

Yeong-Hyeon Hwang  Seong-Il Kim  Jiann-Min Jeng 《The Journal of environmental education》2013,44(4):19-25

Abstract

Attitude models have been widely applied to natural resource management to ensure responsible environmental behavior. For a variety of applications, the causality among selected antecedents, such as knowledge of environmental issues, locus of control, attitude, personal responsibility, and intention to act on responsible environmental behavior has not yet been tested empirically. A hypothesized causal model based on Hine's (1986) model on responsible environmental behavior was developed. The data from 523 visitors to the urban forest trail in the Kwang-Reung Arboretum, Korea, during September 1995 were used for testing the suggested causal model. Path analysis using the LISREL program tested the model fit and statistical effects of variables. In terms of the effects on intention to act, locus of control and attitude are more important than knowledge and personal responsibility. Our findings suggest that in order to enhance responsible environmental behavior, environmental education and interpretation systems need to focus on changing the internal locus of control. Several recommendations, limitations, and directions for future research are discussed.  相似文献   

王治郅出国前后征战CBA数据分析及建议     

张辉  李可可  米勤  冯杰 《湖北体育科技》2007,26(3):363-364

通过运用查阅文献资料法对王治郅出国前与回国后参加CBA的技术统计分别进行比较,并把他与当今国内优秀中锋作对比.研究发现:王治郅在得分、抢篮板球和助攻等统计数据上都有很大提高,属于技术全面型球员.但在与国内优秀中锋的对比中:抢篮板球、防守盖帽等还需要进一步提高.  相似文献