共查询到18条相似文献,搜索用时 125 毫秒
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提起感冒,众所周知,但对”流感”、“感冒”、“伤风”、“上感”、“夏季流感”的内涵很多人并不清楚。只有弄清这几种病的区别,方可做到正确诊断、尽早治疗和有效预防。一、流行性感冒是由流感病毒引起的急性呼吸道传染病,病原体为甲、乙、丙三型流行性感冒病毒,通过飞沫传播。临床上有急起高热、乏力、全身肌肉酸痛、眼结膜炎明显和轻度呼吸症状,老年人及伴有慢性呼吸道疾病、心脏病者易并发肺炎。由于流感病毒尤其是甲型病毒极易变异,往往造成暴发性 相似文献
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本文针对传染病医院建筑给排水的设计进行研究.从实例出发,分析了传染病院的功能特点及不同类型传染病所采取的措施要点,从有利于洁净及防止二次污染、污水处理及消防给水设计等几个方面提出自己的看法及相应的技术措施. 相似文献
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当前产品振动试验中断处理方法主要依据GJB 150A和MIL-STD-810G标准,但是该标准只涉及一般性处理要求,缺乏具体的处理细节和注意事项,导致实用性降低。因此,本文针对基于LMS Test. Lab的电动振动试验系统,详细研究了振动试验中典型的中断处理方法。首先分析了LMS振动控制采集分析软件和振动台系统的组成和工作原理,然后归纳总结了振动试验常见的中断原因和通用处理方法,最后从软件异常、硬件故障和人因中断等三方面分析研究了振动试验中断处理方法,有助于指导设计和试验人员快速有效处理振动试验中断问题,缩短停机时间,降低试验风险,同时为军民产品振动环境与可靠性试验大纲制定提供了参考。 相似文献
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沿海或沿江的水泥厂在水泥熟料卸船倒运过程中,会产生大量的粉尘,如何处理这些粉尘是个难点问题.文章探讨了专门针对此类装置设计的粉尘捕集方案及应用实例. 相似文献
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在流动注射测定挥发酚的过程中,会出现基线不稳、噪声信号增加、流量不稳定、准确度和精密度降低等现象,分析测试结果表明溶液有气泡、流通池pH、冷却水温度、到阀时间、周期时间等因素均会导致上述现象的发生。通过研究,对检测时间条件及前处理等方面进行调整。在调整流通池pH到9.8~10.2、设置到阀时间为350 s、周期时间为200 s,并且将试剂脱气方式调整为氦气脱气后,测试准确度和精密度均有较大提高。 相似文献
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在流动注射测定挥发酚的过程中,会出现基线不稳、噪声信号增加、流量不稳定、准确度和精密度降低等现象,分析测试结果表明溶液有气泡、流通池pH、冷却水温度、到阀时间、周期时间等因素均会导致上述现象的发生。通过研究,对检测时间条件及前处理等方面进行调整。在调整流通池pH到9.8~10.2、设置到阀时间为350 s、周期时间为200 s,并且将试剂脱气方式调整为氦气脱气后,测试准确度和精密度均有较大提高。 相似文献
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Medical waste management in Korea 总被引:2,自引:0,他引:2
The management of medical waste is of great importance due to its potential environmental hazards and public health risks. In the past medical waste was often mixed with municipal solid waste and disposed of in residential waste landfills or improper treatment facilities (e.g. inadequately controlled incinerators) in Korea. In recent years, many efforts have been made by environmental regulatory agencies and waste generators to better manage the waste from healthcare facilities. This paper presents an overview of the current management practices of medical waste in Korea. Information regarding generation, composition, segregation, transportation, and disposal of medical wastes is provided and discussed. Medical waste incineration is identified as the most preferred disposal method and will be the only available treatment option in late 2005. Faced with increased regulations over toxic air emissions (e.g. dioxins and furans), all existing small incineration facilities that do not have air pollution control devices will cease operation in the next few years. Large-scale medical waste incinerators would be responsible for the treatment of medical waste generated by most healthcare facilities in Korea. It is important to point out that there is a great potential to emit air toxic pollutants from such incinerators if improperly operated and managed, because medical waste typically contains a variety of plastic materials such as polyvinyl chloride (PVC). Waste minimization and recycling, control of toxic air emissions at medical waste incinerators, and alternative treatment methods to incineration are regarded to be the major challenges in the future. 相似文献
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Edward J. Noga 《Journal of the American Water Resources Association》1988,24(5):967-973
ABSTRACT: Diseases in wild fish populations may have multiple economic and social impacts. Epidemics of infectious diseases, which are associated with the presence of some microbe or parasite, have recently been observed in several major estuarine systems in the eastern United States. The most prevalent of these problems is ulcerative mycosis (UM), a fungal infection. The agents responsible for UM and many of these other diseases are opportunistic pathogens that are not believed to infect normal, immunocompetent individuals. While inroads have been made into determining the infectious agents associated with these diseases, we know very little of how pollution may influence their prevalence. Understanding the importance of pollution requires an awareness of all the environmental conditions that can affect the health of wild populations. In this paper, a multistep examination of the interactions between the host, pathogen(s), and environment is outlined. 相似文献
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Magda Magdy Abd El-Salam 《Journal of environmental management》2010,91(3):618-629
This study investigated the hospital waste management practices used by eight randomly selected hospitals located in Damanhour City of El-Beheira Governorate and determined the total daily generation rate of their wastes. Physico-chemical characteristics of hospital wastes were determined according to standard methods. A survey was conducted using a questionnaire to collect information about the practices related to waste segregation, collection procedures, the type of temporary storage containers, on-site transport and central storage area, treatment of wastes, off-site transport, and final disposal options. This study indicated that the quantity of medical waste generated by these hospitals was 1.249 tons/day. Almost two-thirds was waste similar to domestic waste. The remainder (38.9%) was considered to be hazardous waste. The survey results showed that segregation of all wastes was not conducted according to consistent rules and standards where some quantity of medical waste was disposed of with domestic wastes. The most frequently used treatment method for solid medical waste was incineration which is not accepted at the current time due to the risks associated with it. Only one of the hospitals was equipped with an incinerator which is devoid of any air pollution control system. Autoclaving was also used in only one of the selected hospitals. As for the liquid medical waste, the survey results indicated that nearly all of the surveyed hospitals were discharging it in the municipal sewerage system without any treatment. It was concluded that the inadequacies in the current hospital waste management practices in Damanhour City were mainly related to ineffective segregation at the source, inappropriate collection methods, unsafe storage of waste, insufficient financial and human resources for proper management, and poor control of waste disposal. The other issues that need to be considered are a lack of appropriate protective equipment and lack of training and clear lines of responsibilities between the departments involved in hospital waste management. Effective medical waste management programs are multisectoral and require cooperation between all levels of implementation, from national and local governments to hospital staff and private businesses. 相似文献
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膜曝气生物膜反应器生物膜影响因素分析 总被引:1,自引:0,他引:1
膜曝气生物膜反应器(MABR)是一种利用透气膜进行曝气,可以实现同步硝化反硝化的污水生物处理新工艺。本文阐述了膜曝气生物反应器生物膜的原理和特点,总结了国内外在该领域的研究成果,重点介绍了C/N、氧气压力、流速、生物膜厚度、温度和pH对生物膜性能的影响。 相似文献
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室内空气污染及其防治对策研究 总被引:1,自引:0,他引:1
从房屋建筑、居室功能以及人类活动为出发点,详述了室内空气污染物的主要来源,分析了几种主要污染物对人体健康的影响;提出了室内环境空气污染防治对策,最后对减少室内空气污染提出了几点建议,并对将来室内空气污染的治理进行了展望. 相似文献
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医疗废物被列为《国家危险废物名录》的首位,处理不彻底会对水体、土壤、空气和人体造成严重危害。然而,我国对医疗废物的处理起步比较晚,和世界发达国家相比处于落后状态。目前,我国的医疗废物总量逐年增加,集中处理率低,收集、分类、贮存、运输不规范,并且缺乏有效的监管体系和运行机制,应该采取加强医疗废物源头控制、建立医疗废物监管体制、提高医疗废物处理技术和能力等措施,力争在较短的时间内彻底改变我国医疗废物处理现状。 相似文献