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阐述了虚拟现实技术在民航安全方面的应用前景和重要意义 ,并应用于飞行事故分析。通过建立事故模型 ,笔者对飞行中相对应的人—机关系进行描述。这些关系对事故原因分析是十分重要的。在这个框架下实现了三维模型动画显示 ,并利用计算机多媒体技术 ,实现真实感图形动态显示和音效合成 ,虚拟环境和立体显示 ,展现亲历事故的真实效果 相似文献
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航空维修差错分析及其管理 总被引:4,自引:2,他引:4
航空维修差错是诱发或直接导致飞行事故最重要的原因之一 ,对维修差错进行分类和分析有助于航空安全。笔者在分析航空维修环境变化的基础上 ,基于Reason模型构建了维修差错分类与诱因分析的框架 ,并结合机务维修的实际情况 ,对框架所包括的不安全行为、不安全行为的先兆、不安全的管理及组织因素进行了初步编码。文章还简要论述了维修差错的管理技术 ,指出借助框架编制详细的差错分类与分析编码系统是发展的方向。 相似文献
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This paper examines the effect of aviation safety education on passenger cabin safety awareness in knowledge, attitude, and behavior (KAB). The educational value of KAB has been addressed in various fields such as AIDS prevention and campus safety. KAB has been applied in aviation safety related areas, especially in training, such as crew resource management training, pilot training, and mechanic training. However, KAB has not been implemented in aviation passenger education in cabin safety. This paper uses the construct of “aviation safety education”, which is intended to influence airline passenger knowledge of, attitude toward, and behavior about cabin safety awareness. Passenger surveys were done at two Taiwan airports. The results show that aviation safety education positively affects airline passenger cabin safety knowledge, attitude, and behavior. We recommend safety education that involves accurate instruction about emergency equipment procedures, situational awareness, emergency responses, and relevant cabin-safety regulations.Our findings indicated that an increase in cabin safety knowledge positively affected airline passenger behavior, which supported knowledge–behavior consistency. We also found that a positive attitude toward cabin safety positively affected airline passenger behavior, which supported attitude–behavior consistency. The hypothesis that cabin safety knowledge positively affected passenger attitude – knowledge–attitude consistency was not supported. 相似文献
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在全尺寸热释放速率实验台的基础上,搭建有风条件池火实验平台,开展了不同风速条件下的航空煤油池火燃烧实验,实验所用正方形油盘的边长分别为0.2m、0.3m和0.4m,风速范围为0 m.s-1至4.99 m.s-1。实验结果表明,风速为0 m.s-1时航空煤油池火的燃烧速率随油盘尺寸增大而单调递增,实验值与理论值的差距随风速增大而减小。实验所得.m″windy/.ms″till与v/D呈线性关系,与前人结论一致,但实验所得参数与前人值不同。同尺寸油盘池火的热释放速率峰值来临时间随风速增大有减小的趋势;不同尺寸油池火的燃烧速率随风速增加而单调递增。对不同尺寸油池火的热释放速率峰值随风速的变化规律作了讨论。 相似文献
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溢油事故日益频繁,对溢油的监测尤为重要,文章介绍了溢油事故监测中遥感技术的运用进展,包括了航空遥感、卫星遥感以及两者在溢油事故中的联合运用。 相似文献
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Zeban Shah Renato C. Veses Julio C. P. Vaghetti Vanessa D. A. Amorim Rosangela da Silva 《International Journal of Green Energy》2019,16(4):350-360
The Bio-oil was produced from the pyrolysis of agricultural wastes (Eucalyptus sawdust) and discarded soybean frying oil. The temperature of the pyrolysis system was initiated at 28°C and increased to 850°C. Atmospheric distillation of crude bio-oil was performed and a fraction at a temperature range 160–240°C (pyrolysis oil) was separated and subjected to GC-MS, 1H-NMR, TGA and FTIR analysis to identify the different properties and compounds present in pyrolysis oil. It was noticed that there was an abundance of oxygen and nitrogen containing compounds as well as other reactive species in pyrolysis oil. To reduce the amount of these species, the pyrolysis oil was subjected to hydrogenation in the presence of NiMo as a catalyst. After hydrogenation, the atmospheric distillation of hydrogenated bio-oil was performed and another fraction at temperature range 160–240°C (hydrogenated bio-oil) was separated and analyzed by the same techniques. It was noticed that during hydrogenation, more than 60% oxygenated and other reactive species were converted into hydrocarbons. Hydrogenated bio-oil showed very similar physico-chemical properties such as distillation curve, density, viscosity, freezing point, flash point, the presence of hydrocarbons and enthalpy of combustion as aviation kerosene also known as QAV-1. 相似文献
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钠盐类型对表面活性剂清洗煤油污染土壤的强化效应 总被引:1,自引:0,他引:1
采用表面活性剂清洗煤油污染土壤,考察添加钠盐对洗脱率的影响,并用Zeta电位仪、表面张力仪对溶液及用接触角仪对清洗前后的土壤进行表征.结果表明,硅酸钠对十二烷基硫酸钠(SDS)清洗的增效作用最明显;酒石酸钠对十二烷基苯磺酸钠(SDBS)及聚氧乙烯月桂醚(Brij35)清洗的增效作用最明显;不同类型钠盐对曲拉通X-100(TX-100)清洗均有一定的增效作用但差别不明显;腐殖酸钠及硅酸钠对皂苷溶液清洗的增效程度相当,但就改良土质而言选用腐殖酸钠作助剂更为合适;硅酸钠对Tw-80清洗的增效作用随着Tw-80浓度的增大而增强,氯化钠和酒石酸钠则相反.钠盐增效清洗的作用机制是降低离子型表面活性剂的表面张力和临界胶束浓度;而非离子型表面活性剂的增效作用则是利用钠盐防止煤油"重吸附"及抗表面活性剂"沉淀",增大胶团体积来实现.接触角测量表明,煤油污染后的土壤亲水性减弱,清洗后接触角变小,亲水性增强,且随着表面活性剂浓度的增大接触角减小,对恢复土壤运输水分和养料正常功能有利. 相似文献