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美国国防部可信微电子战略和举措演进研究 被引量:2
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作者 张倩 刘馨阳 +1 位作者 聂国健 周军连 《科技管理研究》 CSSCI 北大核心 2021年第7期46-58,共13页
随着贸易全球化及商用先进技术加速发展,美国国防部认识到从2003年开始建立的"可信供应"能力已无法满足要求,迫切需要在保证微电子器件可信的基础上加大对先进商用技术的使用。为此,国防部于2017年提出"技术实现可信&qu... 随着贸易全球化及商用先进技术加速发展,美国国防部认识到从2003年开始建立的"可信供应"能力已无法满足要求,迫切需要在保证微电子器件可信的基础上加大对先进商用技术的使用。为此,国防部于2017年提出"技术实现可信"的新安全框架及系列保障方法。目前,国防部表示已建立起微电子器件产品全寿命周期管控能力。列举了国防部担心其所用微电子器件产品中存在的安全隐患,梳理了国防部"可信代工厂"项目发展历程,研究分析了新安全框架的设置思路及所匹配9个项目的研究目标、投资和成果等内容,最后提出了值得借鉴的做法及对我国的预警。 展开更多
关键词 可信代工 国防高级研究计划局 技术实现可信 微电子安全 恶意植入 伪冒 小芯片
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Augmented Reality Applied to Building Assessment with Building Information Model Visualization
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作者 Marcia Regina de Freitas Regina Coeli Ruschel 《Journal of Civil Engineering and Architecture》 2014年第9期1129-1137,共9页
AR (augmented reality) is a technology that adds information to the real world adding virtual elements to its visualization in real time. AR used in AECO (architectural, engineering, construction and operations) c... AR (augmented reality) is a technology that adds information to the real world adding virtual elements to its visualization in real time. AR used in AECO (architectural, engineering, construction and operations) can contribute in augmenting visualization during design, construction and operation of the buildings. This article presents a study that applies AR to building assessment with BIM (building information) model visualization. The use of AR on existing applications for smart phones and tablets is validated. AR proposed an adaptation of the method of POE (post-occupancy evaluation) subsidized. Traditional POE process model involves three phases: planning, conducting and applying. In order to incorporate AR, it is proposed a total restructuring of the planning phase, developing the research instruments in three steps: 3D modeling, model treatment and AR application development. It was observed that for POE studies, the 3D models are in large scale and need to be detailed for precise comparison. BIM models for facility management, representing building use situation, are of the highest level of detail. A balanced point between simplicity and representativeness was the solution adopted in this experiment for uploading and downloading performance issues. This article presents and discusses findings for the new proposition for the activity of research instruments development for the planning phase of POE with AR as well as initial tests with first results and difficulties faced. 展开更多
关键词 Construction management ASSESSMENT augmented reality building information model
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