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101.
While the numerical simulation of moisture transfer inside building components is currently undergoing standardisation, the modelling of the atmospheric boundary conditions has received far less attention. 相似文献
102.
脉冲堆驱动线结构大多为细柔部件,且对其传动功能的要求较高。因此,首先将堆桥及整个驱动线作为一个完整的力学模型进行分析,其次分析各个子结构。并将计算结果与实验结果作了比较,表明分析的结果是可靠的,证明子结构法是一种简便实用、行之有效的分析方法。最后用响应谱法的结果对关键部位作出了初步地震安全评价。 相似文献
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模具专业的《数控加工》课程传统教学模式存在很多不足,教学效果也不理想。为强化学生职业能力,提高就业竞争力,本文提出以模具加工生产实例为数控加工课程教学单元,从学习目标驱动与生产任务驱动两方面运用任务驱动教学方法进行了尝试与探索。 相似文献
106.
介绍了安森美半导体推出的各种符合最新LED照明标准的用于通用照明的AC-DC LED驱动电源方案。 相似文献
107.
David Crundall Ben Andrews Editha van Loon Peter Chapman 《Accident; analysis and prevention》2010,42(6):2117-2124
Can commentary driving produce safer drivers? Producing a verbal commentary of potential hazards during driving has long been considered by the police to improve hazard perception skills. In this study we investigated whether learner drivers would benefit from being trained to produce a commentary drive. All learners were initially assessed on a virtual route in a driving simulator that contained 9 hazards. One group of drivers was then trained in commentary driving, and their subsequent simulated driving behaviour was compared to a control group. The results showed that the trained group had fewer crashes, reduced their speed sooner on approach to hazards, and applied pressure to the brakes sooner than untrained drivers. Conversely the untrained drivers’ behaviour on approach to hazards was symptomatic of being surprised at the appearance of the hazards. The benefit of training was found to be greater for certain types of hazard than others. 相似文献
108.
Tae-Yun Koo Kee-Jun Park Bae-Young Kim Hyun-Jun Kim Myung-Won Suh 《International Journal of Precision Engineering and Manufacturing》2009,10(3):59-63
Recently, diffusion of telematics services and an explosive increase of in-vehicle display devices, such as Car Navigation
Systems (CNSs), are becoming the new causes of traffic accidents. This is due to ‘inattention’ caused by an increase in the
driver’s mental workload while he/she is driving. This situation has lead many countries to consider controlling the use of
in-vehicle devices while driving through legislation. This research studies the effect of voice or display information systems
on drivers through the Driver Eye Movement Analysis and the measurement of response ability. The experiment is carried out
in a driving simulator and the results are presented through the comparative analysis of the driver’s visual field via the
gaze tracking device and the average of correct answer rates for arithmetic problems. 相似文献
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《Ergonomics》2012,55(10):1478-1499
The study used a vehicle-based driving simulator to evaluate two graphical displays, one showing risk probability in terms of safety margin (Time Headway, TH), and one showing risk severity in terms of Kinetic Energy (KE). Twentyseven subjects were randomly allocated to one of three experimental conditions: Control, TH, and KE. Subjects undertook three driving tasks (ABA design). For the second driving task in the TH and KE conditions, subjects drove in the presence of their respective feedback displays. Measures of TH and KE levels were taken, as well as subjective measures of risk and task loading. It was found that the KE display was more effective than the TH display in reducing the proportion of time subjects spent at short headways. The KE display was also effective in reducing the proportion of time subjects spent at high speed. The KE display appeared to affect the perception of risk (severity of potential accidents). It was concluded that further research evaluating displays that combined the positive effects of both parameters within a single representation display is needed. 相似文献