The Distribution of Distributed Cognition: Multiple Interpretations and Uses   总被引：3，自引：0，他引：3  

Joyce L. Moore  Thomas R. Rocklin 《Educational Psychology Review》1998,10(1):97-113

We argue that greater precision is needed in the use of the term distributed cognition if this perspective is to significantly impact educational research. We describe a continuum of interpretations of distributed cognition ranging from a conceptualization of cognition as an individual phenomenon that is influenced by factors external to the individual, to a conceptualization of cognition as a social phenomenon that cannot be reduced to individual psychological constructs. We discuss the issues raised by the papers in the current volume, and locate the perspectives taken in these papers along the distributed cognition continuum. The relationship between distributed cognition and situated cognition is then examined, as these terms are often used interchangeably. Finally, we discuss key issues for further research in distributed cognition.  相似文献   

Individual and Distributed Cognitions in Interdisciplinary Teamwork: A Developing Case Study and Emerging Theory   总被引：4，自引：0，他引：4  

Sharon J. Derry  Lori Adams DuRussel  Angela M. O'Donnell 《Educational Psychology Review》1998,10(1):25-56

We present a developing distributed cognition theory of interdisciplinary collaboration that incorporates concepts from both situated cognition and information-processing theory. This theoretical framework is being refined as it is used for analyzing interdisciplinary collaboration within the National Institute for Science Education (NISE). Our analyses are intended to improve scientific understanding of collaborative processes that influence productivity and quality of interdisciplinary work within the NISE and beyond. A critical group meeting in the early development of one interdisciplinary working team is analyzed using language and ideas from our theoretical perspective.  相似文献   

进口集装箱堆存和翻箱策略两阶段规划模型     

游鑫梦  梁承姬  张悦 《上海海事大学学报》2020,41(4):1-7

为提高进口集装箱提取作业效率，制定合理的堆存策略和翻箱策略，考虑集装箱堆存作业与提取作业的关联性建立两阶段规划模型。从降低期望翻箱率的角度，优化进口集装箱的箱位分配，构建第一阶段箱区贝位分配模型，并采用遗传算法求解。基于第一阶段的箱区贝位分配结果，在提箱顺序已知的情况下，优化障碍箱的落箱位，构建第二阶段提箱优化模型，并设计启发式算法求解。通过算例将该算法与已有算法进行对比，结果表明设计的算法在降低贝内二次翻箱率的效果上更显著，进而表明提出的两阶段规划模型能有效降低翻箱率，提升进口集装箱提取作业效率。  相似文献   

Providing Leadership for Change in Distance Learning     

《Journal of Library & Information Services in Distance Learning》2013,7(2):31-41

Abstract

Change in distance learning is occurring at a rapid pace. As new technologies appear, institutions of higher education incorporate them into their course delivery options. Library services must also change to meet new user needs. This article examines the meanings of change and leadership within a distance-learning setting. After describing several strategies used by the author to lead change, the process is outlined in a checklist, with notes to especially relevant current literature. The checklist is intended to help others work through a similar process.  相似文献   

Beyond the Blueprints     

《Journal Of Access Services》2013,10(3):45-55

Abstract

For most research libraries, remote storage of significant portions of their print collections has become an economic necessity. Historically, user objections to remote storage have focused on access-related issues: i.e., lack of browsability, cumbersome requesting procedures, lengthy retrieval times, and lack of content information about materials held in storage locations. Research libraries today operate in an environment of high user expectations for convenience and immediacy in getting information, and for accessing that information remotely. In an environment filled with such expectations, print materials with no alternate electronic format, stored in off-site facilities, and inadequately described in online catalogs are less likely to get even the occasional usage they merit. Given the necessity of remote storage, research libraries need to address the issue of making stored print collections more accessible. This paper discusses three strategies for enhancing access to remotely stored library collections: (1) user-focused access policies; (2) enhanced OPAC displays; and (3) new technologies for retrieval and delivery.  相似文献   

Providing Access and Preservation Services to Collections in Remote Storage Facilities     

《Journal Of Access Services》2013,10(3):53-58

ABSTRACT

As libraries continue to acquire, catalog, and preserve paper-based collections, and the early promise of digital technologies to put everything online has not yet been fully realized, the need to physically retain little used analog collections has intensified. Thus a growing trend in the field of academic and public libraries is an increased awareness of the importance of remote storage facilities (RSF). A recent American Library Association meeting featured speakers who were involved with such a facility. The speakers offered tips and hints on surviving and even thriving in one successfully. The authors of this article hope that by documenting the highlights of these presentations, other librarians and staff in the planning, construction, or implementation phase of a RSF will be better prepared for the challenges and difficulties they will face when trying to provide access to and physically maintain a collection geographically distant from their main library.  相似文献   

RMS系统架构与情报检索系统的功能需求研究   总被引：1，自引：0，他引：1  

吴广印 《数字图书馆论坛》2013,(6):31-38

文章对RMS的发展历史、系统架构和设计理念进行了详细介绍,同时对情报检索系统的功能需求进行研究和分析,最后对情报检索系统的进一步发展和应用进行了展望。  相似文献   

大数据时代下个人云资源柜的构建研究     

陈巧  施佺  邵叶秦 《现代教育技术》2013,23(10):111-114

针对当前学习模式下海量数字教育资源的流转过程中存在的不足,结合云存储的特性提出了基于云存储的个人云资源柜的构建,以期为教育大数据时代下的学生提供泛在的学习支持,提高学生的学习效率.文章重点阐述了由应用访问层、管理层、存储层等构成的个人云资源柜的系统体系结构、分层功能及实现过程.同时通过实验模拟,对传统模式和个人云资源柜支持下的两种学习模式的效果进行了比较分析及性能测试.  相似文献   

Energy storage system with ultracapacitors for thermal underwater glider     

王乐萍  张连洪  姜军鹏 《天津大学学报(英文版)》2013,19(2):98-102

A power system with proton exchange membrane fuel cells (PEMFC) was designed for thermal underwater glider.Heat generated by PEMFC is used as the propulsion power of the glider,and the electricity is used in the control and sensor system.An electric energy storage system (ESS) is required which possesses high power density with good cycle life.Ultracapacitors which exhibit high power density and cycle life are considered as energy storage devices.Simulations based on a specific voyage condition indicate that ESS with ultracapacitors has positive effects on reducing the output power demand of PEMFC and lightening the power system.Experimental results show that the state of charge (SOC) is related to the capacitance and resistance in ultracapacitor ESS.  相似文献   

广西迎接天然气时代的若干技术策略     

梁金禄 《四川三峡学院学报》2013,(3):60-63

为了迎接低碳高效的天然气＂蓝金＂时代,广西从国家北部湾大开发战略高度出发,大力推进天然气管网建设,布局LNG接收站来保障多气源联动供气,推进城市燃气和车船用气改造、加气站建设,大力开发天然气分布式能源利用,并且理顺天然气定价体制,以及建立技术人才培养和保障制度,这些技术策略的实行使得广西大跨步进入天然气时代.  相似文献