澳门融入粤港澳大湾区世界机场群路向研究

粤港澳大湾区世界城市群与世界机场群相伴而生、联动发展.建设世界级机场群，需要5大机场错位发展和良性互动.澳门国际机场是澳门融入粤港澳大湾区重要一极，但机场发展存在与澳门定位、香港珠海空域空运矛盾、澳门土地和环境现状等相关的问题.因此，澳门国际机场今后发展需在葡语国家航线、珠澳密切合作、公务机产业方面努力实现跨越式发展.然而，澳门国际机场改扩建问题争议不断，本文就原址扩建、填海区新建、飞地黄茅岛新建3种模式进行比较分析，探索符合澳门长远利益之方案.     

Context matters: The structure of task goals affects accuracy in multiple-target visual search

Career visual searchers such as radiologists and airport security screeners strive to conduct accurate visual searches, but despite extensive training, errors still occur. A key difference between searches in radiology and airport security is the structure of the search task: Radiologists typically scan a certain number of medical images (fixed objective), and airport security screeners typically search X-rays for a specified time period (fixed duration). Might these structural differences affect accuracy? We compared performance on a search task administered either under constraints that approximated radiology or airport security. Some displays contained more than one target because the presence of multiple targets is an established source of errors for career searchers, and accuracy for additional targets tends to be especially sensitive to contextual conditions. Results indicate that participants searching within the fixed objective framework produced more multiple-target search errors; thus, adopting a fixed duration framework could improve accuracy for career searchers.     

机场综合监视与引导系统运动模块设计及实现

随着民航运输业的迅猛发展,机场起落流量逐年增大,机场内各种车辆的运行给机场场面管理带来巨大的压力。对于目前民航这种发展形势,近年来提出了地面滑行引导与控制系统概念,该概念旨在满足繁忙机场的滑行引导与控制需求。结合传统地面滑行引导与控制系统概念设计了滑行引导运动模块,并通过C＋＋实现。     

基于SOA架构的首都机场中间件平台的设计与实现

以首都机场信息系统集成项目为背景,本文主要介绍了基于SOA架构的首都机场中间件平台的设计与实现,以及通过该平台实现的业务标准、数据标准的统一以及硬件平台的整合。     

面向机场的航空安全信息系统研究

航空安全信息系统是机场实施安全运行、风险控制、安全绩效监控、安全管理决策的基础。阐述系统提出的背景及意义,分析国内外当前研究现状,详细论述系统的信息来源及分类,以及系统的整个处理流程,最后提出系统的架构及主要功能设计。系统的建设将有助于提高机场安全管理的科学性和系统性,健全以安全信息为驱动、风险管理为核心的安全管理长效机制,持续提高机场安全管控水平。     

赣江象山枢纽一期临时航道通航水流数值模拟应用研究

赣江主支象山枢纽为通航河流枢纽,工程施工期妥善处理船舶通航问题尤为重要,应结合工程分期施工方案,提出对应的通航方案.一期工程施工由临时航道通航,二期工程施工由船闸通航.本文针对一期工程施工临时航道通航水流条件问题,采用数值模拟计算方法,建立二维水动力数学模型对不同流量条件下的水流流态进行计算分析.结果表明:在施工一期时...     

北京大兴国际机场航站楼大跨度钢结构整体缩尺模型振动台试验研究

北京大兴国际机场航站楼大跨度曲面钢网格结构超长超大,支承C形柱结构形式新颖受力情况复杂.为此,设计并制作了1/60缩尺模型,通过振动台试验研究其在8度多遇、设防、罕遇地震作用下的动力特性,并分析其在单向、双向、三向地震动情况下的加速度、位移和应变等地震响应.试验结果表明:模型整体结构在三向地震动作用下反应最大,且结构受...     

临空经济区空间发展模式及趋势展望

随着机场由交通场所向区域节点的跨越转变,临空经济区也随之相应地发生着变化,其产业和空间形态已由孤立的城市边缘空间向融入区域一体化发展转变。因此,需要对临空经济区的产生机理、空间布局规律和特点、未来发展趋势进行总结及展望。研究从梳理国内外临空经济区的文献出发,对临空经济区的概念和空间发展模式进行探讨。从机场与临空经济区的关系出发,研究临空经济区与机场、中心城市、腹地之间在产业和空间上的互动关系—集聚效应与分散效应,勾勒出临空经济空间布局演变过程:独立机场区—机场产业化区—空港都市区,结合临空经济区出现的新变化和特点,探索和展望临空经济区的未来发展趋势—航空市镇群的发展。     

Increasing X-ray image interpretation competency of cargo security screeners

X-ray screening of containers and unit load devices in the area of cargo shipping is becoming an essential and common feature at ports and airports all over the world. The detection of prohibited items in X-ray images is a challenging task for screening officers as they need to know which items are prohibited and what they look like in X-ray images. The main aim of this study was to investigate whether X-ray image interpretation competency of cargo security screeners can be increased by computer-based training. More specifically, effects of training were investigated by conducting tests before training started and after approximately three months of training. Moreover, it was examined whether viewing X-ray images in pseudo color would lead to a better detection performance compared to when X-ray images are shown in greyscale. Recurrent computer-based training resulted in large performance increases after three months. No significant difference in detection performance could be found for tests when using X-ray images in greyscale vs. pseudo color.     

Posture and performance: sitting vs. standing for security screening

A classification of the literature on the effects of workplace posture on performance of different mental tasks showed few consistent patterns. A parallel classification of the complementary effect of performance on postural variables gave similar results. Because of a lack of data for signal detection tasks, an experiment was performed using 12 experienced security operators performing an X-ray baggage-screening task with three different workplace arrangements. The current workplace, sitting on a high chair viewing a screen placed on top of the X-ray machine, was compared to a standing workplace and a conventional desk-sitting workplace. No performance effects of workplace posture were found, although the experiment was able to measure performance effects of learning and body part discomfort effects of workplace posture. There are implications for the classification of posture and performance and for the justification of ergonomics improvements based on performance increases.