首创“开放云平台、工具商店” 中国移动打造良性工具开发环境

作为应用创新的基础,工具和应用同等重要,近日中国移动创新提出了工具商店及工具开发平台模式,以期拉动工具及应用的持续快速发展。在本届论坛开放平台分论坛上,中国移动通信研究院院长黄晓庆发布了创新的工具开发平台,通过为工具开发者打造成本低廉、盈利可观的平台环境,进而促进工具以及应用的规模发展,同时也为中     

基于DO-330的民用飞机机载设备工具鉴定方法研究

随着软件工具在民用飞机机载设备研制过程中的广泛应用,工具的适航置信度得到了业界深入的关注,工具鉴定已经明确走进了适航审查的视野。基于DO-330标准要求,对机载软件工具鉴定过程、目标和符合性数据等开展了研究,同时从项目实际经验出发,提出了工具鉴定复用性评估、工具鉴定降级等策略考虑,旨在为工具鉴定工作提供指导。     

对工具痕迹检验技术的探析

公安局是维护社会治安、维护人民群众根本利益的重要组织.场景中出现的工具痕迹率高,但利用率很低.技术的客观因素和主观因素,主要是工具利用率低,客观因素限制了技术的使用,从根本上标志限制了工具的使用.分析工具痕迹检验技术的原因,对工具痕迹检验技术的研究现状进行了深入了解,并分析了研究中存在的问题,从而探索工具痕迹检验技术的发展和研究方向.     

鲜为人知的Windows XP安全工具

为了提高安全性和易用性．Win XP不仅改进了许多原有的GUI工具和命令行工具，同时还增加了一些新的工具，这些工具不再通过Resource Kit(资源工具包)发布，而是直接把最有用的工具作为Support Tools包装到了OS软件包．放在安装CD的Support\Tools目录下。这些工具必能帮你完成日常的监视、管理任务，从而加固’Win XP的安全。只可惜大多数用户都不知道这些工具的存在．下面笔者将对它们一一介绍。     

基于ASP.NET互操作性评估工具设计与实现

这里首先对互操作性等级评估工具进行了概述,其中包括互操作评估模型、互操作评估准则、互操作评估方法和互操作性等级评估工具所产生的评估产品。互操作性等级评估工具是基于B/S结构,应用ASP.NET 3层架构的设计模式与ADO.NET数据库技术相结合进行开发的。其次分别介绍了系统的功能设计、模块设计和工具所使用的关键技术。最后总结了互操作性等级评估工具的一些特点。     

系统漏洞检测研究与安全分析

首先介绍了漏洞扫描原理、种类、常用的扫描工具,然后详细分析了通过nmap工具和nessus工具检测系统端口和漏洞的方法,并通过检测出的EternalBlue永恒之蓝漏洞进行了系统安全性分析和防御方法。     

有线电视网络工程施工工具新设计

网络施工要从一钉一线开始,本文介绍了新设计的几款有线电视网络施工工具,分别为铁压板固定工具、塑料压板固定工具、扎线旋紧器,旨在提供既安全又高效的施工工具解决方案,避免伤手伤眼等危险情况发生.     

软件静态代码检查工具引入及效益分析

介绍了所在组织引入静态代码检查工具的试用过程,包括静态代码规范检查、BugDetective以及从功能性、易用性、性能等方面进行与其他开源工具的分析对比,其作用及性能皆优于开源工具.并对试行前后的的效益进行了分析,该工具的引入极大化提高了代码评审覆盖率和代码质量.最后,给出了具有实践意义的经验总结.     

科普所博士后赴日参加“樱花科技计划”学术交流

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。     

国外青少年创造力测评工具的研究综述

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。     

Reduction of earthquake risk in the United States: bridging the gapbetween research and practice

Continuing efforts under the auspices of the National Earthquake Hazards Reduction Program are under way to improve earthquake risk assessment and risk management in earthquake-prone regions of Alaska, California, Nevada, Washington, Oregon, Arizona, Utah, Wyoming, and Idaho, the New Madrid and Wabash Valley seismic zones in the central United States, the southeastern and northeastern United States, Puerto Rico, Virgin Islands, Guam, and Hawaii. Geologists, geophysicists, seismologists, architects, engineers, urban planners, emergency managers, health care specialists, and policymakers are having to work at the margins of their disciplines to bridge the gap between research and practice and to provide a social, technical, administrative, political, legal, and economic basis for changing public policies and professional practices in communities where the earthquake risk is unacceptable     

Graphene‐Based Nanomaterials: Synthesis,Properties, and Optical and Optoelectronic Applications

Graphene, a two‐dimensional, single‐atom‐thick carbon crystal arranged in a honeycomb lattice, shows extraordinary electronic, mechanical, thermal, optical, and optoelectronic properties, and has great potential in next‐generation electronics, optics, and optoelectronics. Graphene and graphene‐based nanomaterials have witnessed a very fast development of both fundamental and practical aspects in optics and optoelectronics since 2008. In this Feature Article, the synthesis techniques and main electronic and optical properties of graphene‐based nanomaterials are introduced with a comprehensive view. Recent progress of graphene‐based nanomaterials in optical and optoelectronic applications is then reviewed, including transparent conductive electrodes, photodetectors and phototransistors, photovoltaics and light emitting devices, saturable absorbers for ultrafast lasers, and biological and photocatalytic applications. In the final section, perspectives are given and future challenges in optical and optoelectronic applications of graphene‐based nanomaterials are addressed.     

Recent Advances in Hybridization,Doping, and Functionalization of 2D Xenes

The emerging monoelemental 2D materials named as Xenes including borophene, silicene, germanene, stanene, phosphorene, arsenene, antimonene, bisthumene, selenene, and tellurene, have attracted rising attention experimentally and theoretically. Because of their excellent and versatile physical, chemical, electrical, and optical advantages, Xenes have been shown or have been predicted to have excellent performance in nanotechnology applications, addressing challenges and advances in electronics, energy, healthcare, and environment. In this review, the basic fundamentals in the classification of the periodic table group and the synthesis methods for the emerging materials are summarized. Then, the hybridization, doping and functionalization of 2D Xenes, and their corresponding applications are presented. Furthermore, a summary of research progress on 2D Xenes and the challenges and perspectives for their further development are discussed.     

基于OpenMV的四旋翼无人机目标跟踪系统设计与实现

基于四旋翼无人机小巧便捷可控的特点,设计并实现了一种可识别并自动跟踪物体的四旋翼无人机系统,该系统采用STM32F407为主控芯片,综合光流模块、数传模块、OpenMV4模块和电机、螺旋桨等外围设备,采用姿态估算、色块跟踪解耦合、色块识别、滤波、坐标系转换、PID调节、前馈调节等算法实现四旋翼的识别与自动跟踪,使其可以在平稳飞行的同时,按照程序指令搜寻目标,并触发跟踪状态,完成自动跟踪。该四旋翼无人机系统灵巧便携,操作简单,通用性强,应用前景广阔。     

Open standards for homeland security sensor networks

Sensors and networks are key components in building distributed sensor networks nationwide for detecting weapons of mass destruction and monitoring and protecting critical infrastructure such as airports, bridges, buildings, railways, utility, and water supplies. Tens of thousands of sensors will be connected through wired and wireless networks for communicating and sharing sensor data and information among government agencies and private enterprises to effectively protect people and property. Open, standardized sensor interfaces and sensor data formats are needed to enable effective integration, access, fusion, and use of sensor-derived data in critical homeland security (HLS) applications. This article discusses some open standards that enable rapid and seamless sensor interconnection, integration, discovery, access, and usage within and across systems, networks, and enterprises through Web access.     

Advanced Compressible and Elastic 3D Monoliths beyond Hydrogels

3D monoliths have undergone great progress in the past decades in scientific and engineering fields. Especially, compressible and elastic 3D monoliths (CEMs) hold great promise in a series of applications, such as pressure/strain sensing, energy storage, oil/water separation, and thermal insulation, attributed to their unique mechanical properties and multifunctionality (e.g., conductivity, thermal stability, and high adsorption capacity). Recently, plenty of advanced CEMs have been developed from 1D and 2D building blocks, polymers, and biomass via various methods. Herein, the latest progress in controllable design and preparation of advanced CEMs, which mainly refer to aerogels, sponges, and foams, are reviewed in terms of their structural units and applications. The relationship between structure and mechanical performances of CEMs is discussed. Moreover, their applications in sensing, energy storage and conversion, water treatment, fire‐resistance, and electromagnetic interface shielding are presented. Finally, the challenges and future opportunities of CEMs are also discussed.     

基于数字虚拟的工业设计创新模式与应用研究

本文通过数字技术虚拟性的方式、方法、途径的理论性研究,基于数字化技术的多感知性、交互操作性、对现实事物关系、活动、认知的实际模拟性,通过数字技术(如:VR技术、AR技术、3D成像技术等)虚拟工业设计在设计流程、设计管理、制造加工、设计体验、设计服务等事件的实际情景,实现工业设计的设计与制造的多样化信息交互,提高产品设计方案的合理性和可行性,为工业设计设计、制造、研发的创新开辟一种新型的理念与模式。     

单目图像序列光流三维重建技术研究综述

由单目图像序列光流重建物体或场景的三维运动与结构是计算机视觉、图像处理与模式识别等领域的重要研究内容,在机器人视觉、无人机导航、车辆辅助驾驶以及医学影像分析等方面具有重要的应用。本文首先从精度与鲁棒性等方面对单目图像序列光流计算及三维重建技术近年来取得的进展进行综述与分析。然后采用Middlebury测试图像序列对HS、LDOF、CLG-TV、SOF、AOFSCNN 和 Classic ＋NL 等典型光流算法以及 Adiv、RMROF、Sekkati 和DMDPOF等基于光流的间接与直接重建方法进行实验对比分析,指出各对比方法的优点与不足,归纳各类方法的性能特点与适用范围。最后对利用分数阶微分模型、非局部约束、立体视觉以及深度线索解决亮度突变、非刚性运动、运动遮挡与模糊情况下光流计算及重建模型的局限性与鲁棒性问题进行总结与展望。     

基于区块链的威胁情报共享及评级技术研究

随着计算机和网络技术的快速发展,网络安全事件频发,安全漏洞不断,威胁情报的作用和价值越来越大。基于区块链的开放、共识、自治和去中心、去信任、不可篡改、可追溯等特点,提出了通过区块链技术构建威胁情报信息的区块,包括IP地址信息、域名信息、URL信息、安全事件信息、漏洞信息、威胁情报源可信度、威胁情报源贡献率等;并设计了基于区块链的威胁情报共享和评级系统,给出了相应的基于区块链的威胁情报共享方法和评级方法,可以实现及时有效获取及分析出最新、最有价值的威胁情报信息,从而及时进行防护及应急响应,促进整个威胁情报生态的闭环持续有效开展。     

Cathode-ray-tube phosphors: Principles and applications

Principles and applications of phosphors in cathode-ray tubes are discussed. Among the basic parameters covered are: back-scattering, secondary emission, penetration, electronic transitions, dead voltage and energy, and optical efficiencies. Various relevant aspects of television kinescopes are discussed, including commercially used phosphor characteristics and screening techniques, radar tubes, image tubes, voltage-dependent color displays, flying-spot and beam-indexing tubes, projection, printing, and infrared stimulation systems. Colorimetry and photometry, as applied to phosphors, are discussed, including the CIE and UCS systems.