GJB15481-2001标准的作用及特点分析

分析介绍了国防科技工业实验室开展实验室认可的客观需求，GJB15481-2001标准在国防科技工业实验室体系建设中的作用、特点和现场评审的主要内容。     

虚拟现实技术在船舶消防领域的应用

该文从工程应用的角度较为详细地介绍了组建船舶火灾虚拟现实系统过程中硬件选型、软件设计和虚拟环境中船舶火灾模型的选取原则等，并建立了基于微型计算机、Windows NT等软硬件环境下的船舶火灾虚拟现实体系结构。     

对我国科技传媒产业集团化的思考

加入WTO后,我国科技传媒业面临着前所未有的挑战。组建集团、整合传媒资源、形成整体优势是我国科技传媒业应对严峻局面的必然选择。在分析了我国科技传媒业现状的基础上,结合当前的实际,提出了我国科技传媒业实行集团化的思想,并对其组建方式以及应注意的问题进行了详细阐述。     

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交通运输领域是我国“十一五”期间重点发展的领域之一．“2006中国交通高层论坛”会议的主题是“走进十一五、创建新交通”、会议围绕主题，从交通与经济、交通与科技、交通与企业三个角度，总结了“十五”期间交通运输领域取得的诸多成果，审视了我国交通运输系统存在的问题，深入探讨了解决目前问题的措施和方法．同时，对“十一五”期间我国交通运输事业如何健康发展，从不同的角度进行了研讨．     

科学史:是科学还是历史——以天文学史及星占学为例

本文从科学技术史这一专业在国内学科体系中的特殊地位出发,以天文学史研究中与星占学的关系为个案,讨论了将科学史研究归属于科学或归属于历史学的利弊。作者认为与其将科学史归属于科学,不如将科学史归属于历史学,而最理想的则是像国际上一样将科学史视为一个独立的学科。     

努力实行管理创新促科技创新——芜湖长江大桥准项目法施工管理再探讨

在芜湖长江大桥项目法施工管理实践中,企业以科技为第一生产力,大力开展科技创新和加强工程技术管理,使企业获得了经济效益,加快了工程进度,保证了工程质量,有效地促进了我国建桥事业的发展.此文探索了以管理创新促科技创新的具体做法和措施.     

大洋航运公司关键绩效指标体系的建立

应用关键绩效指标体系设立的方法、原则和步骤,以大洋航运公司为背景,通过分析企业文化、公司战略,找出公司战略举措成功要素,从而指导航运公司建立衡量战略举措的关键绩效指标体系。     

1/32° real-time global ocean prediction and value-added over 1/16° resolution

A 1/32° global ocean nowcast/forecast system has been developed by the Naval Research Laboratory at the Stennis Space Center. It started running at the Naval Oceanographic Office in near real-time on 1 Nov. 2003 and has been running daily in real-time since 1 Mar. 2005. It became an operational system on 6 March 2006, replacing the existing 1/16° system which ceased operation on 12 March 2006. Both systems use the NRL Layered Ocean Model (NLOM) with assimilation of sea surface height from satellite altimeters and sea surface temperature from multi-channel satellite infrared radiometers. Real-time and archived results are available online at http://www.ocean.nrlssc.navy.mil/global_nlom. The 1/32° system has improvements over the earlier system that can be grouped into two categories: (1) better resolution and representation of dynamical processes and (2) design modifications. The design modifications are the result of accrued knowledge since the development of the earlier 1/16° system. The improved horizontal resolution of the 1/32° system has significant dynamical benefits which increase the ability of the model to accurately nowcast and skillfully forecast. At the finer resolution, current pathways and their transports become more accurate, the sea surface height (SSH) variability increases and becomes more realistic and even the global ocean circulation experiences some changes (including inter-basin exchange). These improvements make the 1/32° system a better dynamical interpolator of assimilated satellite altimeter track data, using a one-day model forecast as the first guess. The result is quantitatively more accurate nowcasts, as is illustrated by several model-data comparisons. Based on comparisons with ocean color imagery in the northwestern Arabian Sea and the Gulf of Oman, the 1/32° system has even demonstrated the ability to map small eddies, 25–75 km in diameter, with 70% reliability and a median eddy center location error of 22.5 km, a surprising and unanticipated result from assimilation of altimeter track data. For all of the eddies (50% small eddies), the reliability was 80% and the median eddy center location error was 29 km. The 1/32° system also exhibits improved forecast skill in relation to the 1/16° system. This is due to (a) a more accurate initial condition for the forecast and (b) better resolution and representation of critical dynamical processes (such as upper ocean – topographic coupling via mesoscale flow instabilities) which allow the model to more accurately evolve these features in time while running in forecast mode (forecast atmospheric forcing for the first 5 days, then gradually reverting toward climatology for the remainder of the 30-day forecast period). At 1/32° resolution, forecast SSH generally compares better with unassimilated observations and the anomaly correlation of the forecast SSH exceeds that from persistence by a larger amount than found in the 1/16° system.     

浅谈材料科学的发展趋势及进展

本文综述了当前材料科学与材料学科的发展现状,展望了材料科学与材料学科的发展前景。