科技期刊"创新生态圈"理论体系研究

科技期刊"创新生态圈"是将生物学理论引入期刊创新范畴而形成的一种有机开放、动态多层次的理论结构.本文以综述国内外创新生态系统相关研究文献为基础,阐明了科技期刊"创新生态圈"的理论渊源.并以生态隐喻、模型构建的方法,分析了科技期刊"创新生态圈"的内涵界定、要素构成、健康度评价,指出加快构建具有良好健康度的科技期刊"创新生态圈",需合理发挥"创新要素"的"竞合共生"作用.     

中原经济区发展对策研究:与长株潭两型社会实验区的比较

中原经济区和长株潭两型社会建设综合改革实验区在中部崛起战略中发挥着重要作用。通过对两大经济区发展定位、经济开放度、生态环境等三个维度的比较,得到了中原经济区应错位发展、优化产业结构、发展循环经济、扩大开放交流、强化生态意识等具体发展对策。     

一种卫星电视快速自动定位和跟踪系统

为实现对卫星信号的快速搜索和高精度指向,提出一种利用三维电子罗盘对卫星实现自动定位的系统.通过对步进跟踪过程的分析,结合系统模块化设计思路,分析和设计了自动定位系统的硬件模块和软件中的控制算法.为提高整个系统的抗干扰能力和跟踪精度,采用空间坐标式跟踪来代替十字跟踪,从而快速准确地进行卫星定位.     

Time-frequency analysis of EEG signals evoked by voluntary,stimulated and imaginary motions

In order to investigate the characteristics of sensorimotor cortex during motor execution(ME), voluntary, stimulated and imaginary finger flexions were performed by ten volunteer subjects. Electroencephalogram(EEG) data were recorded according to the modified 10-20 International EEG System. The patterns were compared by the analysis of the motion-evoked EEG signals focusing on the contralateral(C3) and ipsilateral(C4) channels for hemispheric differences. The EEG energy distributions at alpha(8—13 Hz), beta(14—30 Hz) and gamma(30—50 Hz) bands were computed by wavelet transform(WT) and compared by the analysis of variance(ANOVA). The timefrequency(TF) analysis indicated that there existed a contralateral dominance of alpha post-movement event-related synchronization(ERS) pattern during the voluntary task, and that the energy of alpha band increased in the ipsilateral area during the stimulated(median nerve of wrist) task. Besides, the contralateral alpha and beta event-related desynchronization(ERD) patterns were observed in both stimulated and imaginary tasks. Another significant difference was found in the mean power values of gamma band(p0.01)between the imaginary and other tasks. The results show that significant hemispheric differences such as alpha and beta band EEG energy distributions and TF changing phenomena(ERS/ERD) were found between C3 and C4 areas during all of the three patterns. The largest energy distribution was always at the alpha band for each task.     

Real-time temperature control for high arch dam based on decision support system

It is important and difficult to control the temperature of mass concrete structure during high arch dam construction.A new method with decision support system is presented for temperature control and crack prevention.It is a database system with functions of data storage,information inquiry,data analysis,early warning and resource sharing.Monitoring information during construction can be digitized via this system,and the intelligent analysis and dynamic control of concrete temperature can be conducted.This method has been applied in the construction of the Dagangshan Arch Dam in China and has proven to be very convenient.Based on the decision support of this system and the dynamic adjustment of construction measures,the concrete temperature of this project is well-controlled.     

公共文化服务视阈下档案微博服务优化研究

文章立足于公共文化服务视阈,探究档案微博现状,为档案机构开展与优化档案微博服务提供参考意见。选择八个有代表性的档案微博账号作为样本,通过西瓜数据平台,对样本微博运营情况进行分析,进一步总结当前档案微博存在的问题,提出相应的解决优化策略。在公共文化服务体系建设背景下,档案机构可以从组织、观念、内容、认证四方面对档案微博服务进行优化,提高档案微博的档案服务能力与质量,进而提升公共文化服务水平。     

基于数字人文视角的高校档案馆档案服务体系构建

在数字人文与档案学跨学科背景下,通过探讨“数字人文”等概念的内涵,调研高校档案馆档案服务体系现状及数字人文对现有服务体系构成要素中问题所产生的影响,凸显基于数字人文视角的高校档案馆档案服务体系构建的必要性;并通过列举实践案例以论证体系构建的可行性。最后从管理、技术、法规维度构建数字人文视角下的高校档案馆档案服务体系。     

“数据-智慧”决策模型:大数据赋能的城市公共危机决策创新

近年来,我国城市公共危机事件频繁发生,传统的决策范式难以满足当前高度复杂性、高度不确定性危机治理需要。随着5G时代的到来,云计算、大数据、人工智能、物联网等信息技术加速融合,一种融合数据驱动和模型驱动的“数据-智慧”决策范式正在形成,应急情境、决策主体、方式方法、应急流程和决策目标也随之发生深刻转换。同时,依托“数据-智慧”模型的自动决策和人机协同决策功能,可以创新危机决策运行机制,驱动城市公共危机治理不断趋向于智能化、快捷化、精准化。     

绘"图"点"睛",助力中国档案事业迈上新台阶——《"十四五"全国档案事业发展规划》解析

科学规划和有序部署是中国档案事业繁荣发展的前提和基础.《"十四五"全国档案事业发展规划》首次以工程项目形式明确未来五年我国档案工作任务重点和突破口,推动档案工作加紧走向依法治理、走向开放、走向现代化,助力中国档案事业加速迈上新台阶.结合各项工程提出原因、背景,深入解析七项工程分别蕴含的目标指向,为《"十四五"全国档案事业发展规划》的深入贯彻提供借鉴和参考.     

档案馆研学旅行基地建设:生成逻辑、内涵描述及运行机制研究

研学旅行利用文化将旅游做成教育,是文旅融合的一种实践形式.研学旅行基地是研学旅行过程中学生学习与生活的场所,档案馆开展研学旅行基地建设具有理论、现实和法规层面的生成逻辑,不仅是其满足教育需求的现实行动,完善公共服务的途径延伸,也是扩大社会影响的宣传路径.要以管理、服务、宣传、评价、保障五个方面为抓手,探索档案馆研学旅行基地建设的运行机制,助力档案馆提升研学旅行开展水平.