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1.
张晓  陈维凤  刘月 《科普研究》2015,(1):93-100
青少年创造力测评的研究对于青少年创造力的培养具有重要的实践意义。本研究通过梳理国内外青少年创造力的相关文献,整理了创造力测评工具的历史轨迹和发展脉络,简要概述了从创造性个人、创造性过程、创造性产品、创造性环境角度入手的四类测评工具以及综合性测评工具的评价维度,指出了这些测评工具在理论上和方法上存在的问题。  相似文献   

2.
<正>要准确地对信息系统进行测评,除依靠测评人的技能外,信息安全测评工具是重要的辅助手段。信息安全风险测评工具的使用不但在一定程度上解决了手动评估的局限性,最主要的是它能够将专家知识进行集中,使专家的经验知识被广泛应用,自动化处理测评过程,可以节省时间及人力成本,并使检测报告的数据形态可被进一步挖掘分析。信息安全测评工具的准入体制和分类信息安全测评经历了很长一段的发展时期。安全测评工具的重点也从操作系统、网络环境发展到整个管理体系。西方国家在实践中不断发现安全测评工具作为保证信息安全测评的重要基石发挥着关键的作用。  相似文献   

3.
李秀菊  王丽慧  陈玲 《科普研究》2014,9(6):5-10,18
创造性想象和创造性思维是创造力培养的两大基石。为了了解我国小学生创造性想象力的基本特点和发展趋势,采用课题组自行设计的创造性想象测量工具对我国9省市36所小学2 160名小学生的创造性想象力的水平进行测量。结果发现:(1)我国小学生的创造性想象力从1年级到6年级处于持续上升的趋势,且增长速度较快;(2)小学儿童创造性想象力新颖性在四年级遇到关键点;(3)学习成绩越好的小学生创造性想象水平越高。对此提出依据小学生创造性想象力的发展特点开设多样化的课程,开展多样化的活动开展教学,尽量不用统一的答案要求学生等建议。  相似文献   

4.
通过分析青少年科学素养的结构,提出了科学素养的“九要素模型”,并从群体因素、个体因素、环境因素、学习科学的途径等四个方面,阐述影响青少年,科学素养的主要因素。以此为依据,编制了青少年科学素养测评量表和背景调查问卷,采用配额抽样方法,对北京市部分中小学生的科学素养状况进行了测评,并对相关影响因素进行了分析。  相似文献   

5.
结合测试评估工具的研究与软件开发实践,对军事电子信息系统测试评估工具的设计与开发进行了分析研究,总结出军事电子信息系统测试评估软件的特点、设计原则和开发策略.归纳了反映军事电子信息系统典型指标统计特性的各种图表的功能及作用,提出了设计军用测评软件的完整方法.最后结合具体实例说明军用测评软件在测试评估中的功能以及达到的效果.  相似文献   

6.
等级保护测评工作是查找信息系统安全差距的重要手段。文中首先结合实际工作,列举了开展等级测评的步骤;接着,对信息系统等级保护定级作了较为详细的阐述,并在此基础上,对等级保护测评中较难理解的检查项,进行了简要的分析和说明;最后,对等级测评结论、等级测评工具、整体测评以及等级测评与风险评估的关系进行了总结。  相似文献   

7.
陈国辉 《电子测试》2013,(6X):255-256
信息化时代的来临为信息共享、自由交流创造了条件,而这会影响到个人创造性的形成和表达。本文在现代信息科技的背景下,从智力、性格和动机几个方面评述创造力的最新研究成果;然后解释影响个人创造力实现的教育和社会环境。最后对创造力的发展方向提出设想。  相似文献   

8.
美国米勒公民科学素养测评指标体系的形成与演变   总被引:3,自引:0,他引:3  
美国学者J.D.米勒教授首创了公民科学素养测评指标体系,为科学评估公众科学素养水平提供了有效工具.本文论述了米勒公民科学素养测评指标体系的产生背景、形成过程与演变历程及其国际应用,并揭示了其对我国当前公民科学素质测评指标建设所具有的借鉴意义.  相似文献   

9.
惠铎铎  沈超  马进  张利利  秦泽西  胡文东 《电子测试》2014,(19):151-152,131
随着科技的进步,飞机有了跨越式发展,机组成员之间必须有较为默契的配合才能更加高效和安全的完成飞行任务,因此客观的评价机组成员之间的团队绩效非常重要。为了开发出一种能够测评团队绩效的有效工具,运用Unity开发工具,结合JavaScript以及C#联合编制出了一套测评软件,运用该软件测评出团队绩效。  相似文献   

10.
网上测评是高校"数字化校园"建设的一项重要内容,该系统采用了基于WEB的B/S模式,运用MicrosoftSQLServer2000和ASP.NET技术,实现了网上测评的测评设置、网上测评、分类汇总等功能。本文对高校测评系统进行了研究,给出了高校测评体系的测评模型和系统设计的关键内容。  相似文献   

11.
This paper presents a brief overview of the Applied Centura(R)DPS(R)system,configured with silicon etch DPS Ⅱ chamber, with emphasis on discussing tuning capability for CD uniformity control. It also presents the studies of etch process chemistry and film integration impact for an overall successful gate patterning development. Discussions will focus on resolutions to key issues, such as CD uniformity, line-edge roughness, and multilayer film etching integration.  相似文献   

12.
We have fabricated the white organic light-emitting devices (WOLEDs) based on 4,4' -bis(2,2 -diphenyl vinyl)-1,1' - biphenyl (DPVBi) and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene (rubrene). The device structure is ITO/2T-NATA (20 nm)/NPBX (20 nm)/CBP: x%Ir(ppy)3:0.5% rubrene (8 nm)/NPBX (5 nm)/DPVBi (30 nm)/Alq(30 nm)/LiF(0.5 nm)/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris (2-phenylpyridine) iridium [Ir(ppy)3], acts as a yellow light-emitting layer, and N,N' -bis- (1-naphthyl)- N,N' -diphenyl -1, 1' -biphenyl-4,4' -diamine (NPBX) acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir (PPY)3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.  相似文献   

13.
To meet the need of automatic image features extraction with high precision in visual inspection, a complete approach to automatic identification and sub-pixel center location for similar-ellipse feature is proposed. In the method, the feature area is identified automatically based on the edge attribute, and the sub-pixel center location is accomplished with the leastsquare algorithm. It shows that the method is valid, practical, and has high precision by experiment. Meanwhile this method can meet the need of instrumentation of visual inspection because of easy realization and without man-machine interaction.  相似文献   

14.
本论文提出一种在多天线MIMO信道相关性建模中小角度扩展近似理论算法,并应用于分析MIMO系统性能。分析中分别对三种不同角能量分布情况下的空间相关性研发快速近似计算法,并同时提出双模(Bi-Modal)角能量分布情况下的近似运算。通过分析这些新方法的近似效率,可以得到计算简单、复杂度低、而且符合实际的MIMO相关信道矩阵,对系统级的快速高效计算法的研究和系统级的评估以及误差分析具有重要的意义。  相似文献   

15.
Integrated circuits (ICs) intended for increasingly sophisticated automotive applications bring unique test demands. Advanced ICs for applications such as highly integrated automatic braking system (ABS) and airbag controllers combine high voltage digital channels, significant VI demands and precise timing capability. Along with continued missioncritical reliability concerns, the trend toward higher voltage operation and increased device integration requires specialized test capabilities able to extend across the wide operating ranges found in automotive applications. Among these capabilities, automotive test requirements increasingly dictate a need for a cost-effective versatile mixed-signal pin electronics with very high data rates reaching up to 50MHz with a voltage swing of-2 V to +28 V.  相似文献   

16.
It is of interest to get appropriate information about the dynamic behaviour of rotating machinery parts in service. This paper presents an approach of optical vibration and deviation measurement of such parts. Essential of this method is an image derotator combined with a high speed camera or a laser doppler vibrometer (LDV).  相似文献   

17.
正Happy New Year!As we step into a new year,we take a look back at the key feature topics covered in China Communications over the past 12 months and set out our expecta-  相似文献   

18.
Call for Papers     
正Introduction Jointly sponsored by the China Institute of Communications(CIC)and the IEEE Communications Society(IEEE ComSoc)since the year 2013,China Communications,currently,is aiming to gradually realise the transition from journal to magazine content and style.  相似文献   

19.
正For a long time,optical and wireless systems/net-works are developed in separate communities witha few attempts for in-depth convergence.In fact,it prom-ises many advantages to combine the optical and wire-less technologies in the levels of systems and networks.Recently,both academia and industry have made manyefforts to enter a new phase of development to take op-tical and wireless systems as fully integrated networks.To provide high bandwidth and reliable service for bothfixed and mobile users,a well-designed network must  相似文献   

20.
正Smart Grid Communications The electric power industry is undergoing profound changes as the industry aims to capture the promise of a smart grid for a sustainable energy future.Enabled by the advanced sensing devices such as Phasor Measurement Units(PMUs),increasingly powerful  相似文献   

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