中国网络咨询业的现状与发展   总被引：1，自引：0，他引：1  

孔德超 《图书馆学研究》2003,(7):64-67

本文在解释网络咨询概念的基础上，主要分析中国网络咨询的发展现状、存在的问题，并对中国网络咨询业的发展前景进行预测。  相似文献   

供应链协调管理中存在的障碍分析     

刘家国  孔祥雨 《情报杂志》2007,26(9):71-73

协调问题是供应链管理过程诸多问题中最为突出的难点问题,并不是单纯的数学模型和软件就可以解决的,其中涉及很多复杂的因素,它不仅存在于供应链企业内部各职能部门之间,更突现于供应链的各阶段之间。以此为出发点和立意点,从分析供应链概念入手,应用系统的观点指出问题存在的根源,从定性与定量相结合的角度探讨了妨碍供应链协调实现的七大障碍,借以充分认识供应链协调管理所具有的复杂性,为解决供应链协调问题奠定了基础。  相似文献   

面向未来的中国科学院脑科学与类脑智能研究——强化基础研究,推进深度融合   总被引：1，自引：0，他引：1       下载免费PDF全文

王力为  许丽  徐萍  于汉超  孔明辉  沈毅  张永清 《中国科学院院刊》2016,31(7):747-754

脑科学与类脑智能技术相互借鉴、相互融合代表了未来脑科学与类脑智能研究的新趋势。中科院在脑科学研究上具有深厚积累和特色优势,率先启动了"脑功能联结图谱"战略性先导科技专项(B类),选择感知觉、学习记忆等几种重要大脑功能,绘制其神经环路图谱,解析其信息处理加工规律;率先在脑科学和智能技术两大领域进行实质性融合,在先导专项中扩充了类脑智能研究内容,成立了中科院脑科学与智能技术卓越创新中心,全面推进脑科学与类脑智能研究深度融合,为我国智能产业的发展提供科技引领与支撑。在分析国际脑科学与类脑智能发展态势的基础上,文章阐述了中科院在脑科学与类脑智能研究方面的部署,提出了进一步加强脑科学与智能技术融合的举措与建议。  相似文献   

南海北部早第三纪流沙港组孢粉组合   总被引：1，自引：0，他引：1  

孙湘君  孔昭宸  李明兴  李彭 《中国科学院研究生院学报》1982,20(1):63-72

In the northern part of South China Sea, including Tonkin Gulf, Hainan lsland, Leizhon Peninsula and some basin of Guangdong  Province,  Paleogene  deposits  are composed of three formations: the Weizhon, the Liushagang and the Changliu forma- tions arranged in descending order.  The paper on the palynoflora of the Weizhon Formation (early and middle Oligocene) is in press[2].  This paper deals only with the palynoflora of the Liushagang Formation, with may be divided into four main stages:       The first stage is represented by Monocolpollenites tranquillus and Crassoretitri- letes sp., assigned to early Eocene The second stage is characterized by Salixipollenites, Momipites triletipollenites and Operculumpollis.  Its age is middle Eocene.  The third stage is dominated by some species of Quercoidites  and  Ulmipollenites  and  also characterized by the presence of Platycaryapollenites  and Prominangularia  dogying- ensis, This sporo-pollen assemblage suggests a late Eocene in age.  The fouth stage is marked by profusion of some alga of brockish water, such as Rugasphera corrugia, Granodiscus gronulatus and some pollen types  of  Liquidambarpollenites   minutus, Multiporopollenites puctatus and Tricolporopollenites minutus.  The age of the last stage is assigned to early oliocene.       In generaly, the palynoflora of the Liushagang Formation is quite different from that of the Weizhou Formation.  The main types of spores and pollen are common with those found in Europe and North America of the same age, while the Weizhou Formation has many elements common both in this region and Borneo.       During Eocene and early Oligocene this area was  of continental  phase with brackish basins. At the beginning the climate was rather moist and hot, but then itbecame moist and warmtemperate.  相似文献   

善治理论与我国政府危机管理能力建设     

孔凡宏  陈向阳 《科技广场》2007,(4):51-53

我国在危机管理方面积累了丰富的经验。但比照善治的标准,仍多少存在着合法性的流失、透明度的缺乏、责任性的缺失、法治性的缺位、回应性的迟缓、有效性的弱化等现象。只有通过改善政府危机形象以增强合法性、准确及时地公开危机信息以增强透明性、严格危机事件问责以增强责任性、健全危机管理法律及规范公务人员行为以增强法治性、完善机构设置规范职能配置以增强回应性、加强人员培训及社会组织培育以增强有效性等举措才能达致政府危机管理的应然状态,提高我国政府危机管理的能力。  相似文献   

How does collaboration affect researchers’ positions in co-authorship networks?     

Xiangjie Kong  Mengyi Mao  Huizhen Jiang  Shuo Yu  Liangtian Wan 《Journal of Informetrics》2019,13(3):887-900

Collaboration usually has a positive effect on researchers’ productivity: researchers have become increasingly collaborative, according to recent studies. Numerous studies have focused on enhancing research collaboration by recommendation technology and measuring the influence of researchers. However, few studies have investigated the effect of collaboration on the position of a researcher in the research social network. In this paper, we explore the relationships between collaboration and influence by social analytical methods, which are pertinent to analyzing the network structure and individual traits. We evaluate three aspects of the researchers’ influence: friendship paradox validation, social circle, and structure of a researcher's ego network. Furthermore, the ”six degrees of Bacon number” theory, generalized friendship paradox, and triadic closure theory are introduced to support our analysis. Experimental results show that collaboration can help researchers increase their influence to some extent.  相似文献   

Bivariate grid-connection speed control of hydraulic wind turbines     

Chao Ai  Wei Gao  Lijuan Chen  Jiawei Guo  Xiangdong Kong  Andrew Plummer 《Journal of The Franklin Institute》2021,358(1):296-320

The requirement for An electrical grid-connected wind turbine is that the synchronous generator speed is stable within a required speed range for the electrical grid. In this paper, a hydraulic wind turbine (HWT) system is considered, and the working principle and working conditions of the HWT are introduced. A novel speed control method is proposed in this paper, using both a proportional flow control valve and a variable displacement motor, which are adjusted in combination to control the speed of the HWT. By establishing a state space model of the HWT and solving the nonlinear system with a feedback linearization method, a bivariate tracking controller is constructed to realize accurate speed control under fluctuating wind speed and the load disturbance conditions. The effectiveness of the control method is verified by simulation, but experimental results highlight problems with the method. The theoretical controller is simplified to reduce sensitivity to measurement noise and modeling error. The control effect has been improved to some extent, but it is limited. Based on these results, combined with the sliding mode variable structure control method and the feedback linearization method to solve the problem of measurement noise and modeling error, and the effectiveness of the control law is finally verified experimentally. It lays a theoretical foundation for the practical application of HWT.  相似文献   

南京市高职院校乒乓球选项课现状调查及对策分析     

孔煜  蒋琴华  裴春燕  王钧铭 《安徽体育科技》2011,32(1):61-63

通过文献资料法、专家访谈法、调查问卷法、数理统计法、逻辑分析法,对南京市部分高职院校的乒乓球选项课开展情况进行了调查和研究,并提出建设性建议。  相似文献   

图书馆特色建设探讨   总被引：2，自引：0，他引：2  

孔德超 《图书馆建设》2011,(1):95-97

图书馆特色是指图书馆在长期办馆过程中积淀成的比较持久稳定的发展方式和被社会公认的优良的管理理念、服务方式、资源及文化建设等方面特征的总和。图书馆应通过科学准确定位,创新办馆理念,建设特色鲜明的馆藏,延揽卓尔不群的馆员,营造完美、高尚的文化氛围及提供优质多样的服务6个建设路径来完成特色化建设。  相似文献   

数字典藏在E-learning中的应用     

郭韫丽  孔令保  李冬梅  吴先福 《图书馆学研究》2011,(2):27-29,42

数字典藏平台可以成为一个非常丰富与完整的数字学习环境,所具有的典藏功能、展示功能、教育功能和研究功能有助于营造一个好的E-learning环境。数字典藏应用于E-learning是数字典藏再利用一个可行的发展方向,有助于提高数字典藏资源的价值。  相似文献