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影响感光制版曝光的因素
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作者 余勇 《陶瓷研究》 2002年第2期24-27,共4页
阐述了在建陶产品如印花砖的丝网感光制版中影响模版质量的有关因素。在丝网印刷感光制版的各种因素中,涉及到网版的因素最多,而其中一半的因素与曝光有关。网版质量与曝光时间有着密切的关系,而曝光时间则受多种因素的影响,其主要有四... 阐述了在建陶产品如印花砖的丝网感光制版中影响模版质量的有关因素。在丝网印刷感光制版的各种因素中,涉及到网版的因素最多,而其中一半的因素与曝光有关。网版质量与曝光时间有着密切的关系,而曝光时间则受多种因素的影响,其主要有四个方面:网版、丝网、光源和曝光时间、感光胶的湿度。 展开更多
关键词 感光制版 曝光时间 网版 丝网 光源 曝光距离 感光胶 湿度 装饰 建筑陶瓷
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8mA、70kV牙科X线机在颞颌关节影像上的应用
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作者 张广民 陈学民 《继续医学教育》 2014年第2期43-43,共1页
目前,我国普通口腔专科诊疗机构一般不具有综合医院所使用的X线机,只具备牙科X线机,在为颞颌关节拍片上有一定难度。本院利用精工JY-YIS-8-1牙科X线机应用在颞颌关节像的投照上并取得了成功,对此进行介绍。
关键词 牙科X线机 感光效应 曝光时间 曝光距离
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Exposure Work Commuting: Case Study among Commuting Accidents in Klang Valley, Malaysia
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作者 Nurulhuda Binti Jamaluddin Ho Jen Sim +2 位作者 Akmalia Shabadin Nusayba Megat Johari Ameer Baecha 《Journal of Civil Engineering and Architecture》 2015年第1期51-56,共6页
Traffic accidents caused the most accidental deaths at work in Malaysia. The SOCSO (Social Security Organization) reported that the number of deaths due to commuting accidents was 760, nearly two times more than dea... Traffic accidents caused the most accidental deaths at work in Malaysia. The SOCSO (Social Security Organization) reported that the number of deaths due to commuting accidents was 760, nearly two times more than deaths caused by accidents that happened at the workplace (471 deaths). The aim of this study is to investigate the relationship of socio-demographic background and the risk exposure of the drivers during their work commuting trips. The study was based on compensation claims to SOCSO where data were extracted from "Form 21" provided by SOCSO. A total of 377 respondents were selected through systematic random sampling method from a list of SOCSO claimants. It was found that majority of the traffic accidents (83%) involved males and most of them (92.2%) were on motorcycles. Male drivers have an average driving experience of 10.7 years and 8.6 years for females. The estimation of the travelled distance for the sample from home to the workplace is 0.65-131 km. Mean accident occurrence time was 23 rain whilst mean distance was 11.6 km. The multiple regression analysis showed that the accident distance was affected by the age of driver, actual travel distance, travel objective and speed. 展开更多
关键词 Commuting accident GENDER age exposure.
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