نتایج جستجو برای: assessment contamination
تعداد نتایج: 609156 فیلتر نتایج به سال:
Abstract A number of propellant/thruster combinations are under development in recent years that aim to replace the prevailing hydrazine-driven reaction control thrusters with less hazardous substances (“green propellants”). With some these systems already orbit, characterizing their contamination potential a space environment becomes relevant. In this paper we discuss experiments on plume indu...
Water microbial contamination is one of the major threats to human health. The study focus on Infulene River Basin, a urban catchment with mainly informal settlements, limited water supply and sanitation. In there are two wastewater treatment plants, hospital beer factory located banks main stream; from this stream used for agriculture domestic uses by some dwellers. These factors present signi...
Platelet components (PCs) have widespread applications in clinical cases. Since PCs store in room temperature (between 20-24°C), they are susceptible to bacterial contamination. There are varied approaches for identifying bacterial contamination in PCs. These methods categorized into two groups: Firstly, culture based methods and secondly, non-culture based methods. Both of them have a coup...
Previous studies of the bacterial quality of roof-harvested rainwater have been confined to either detection of specific pathogens and faecal indicator organisms, or epidemiological studies of health effects associated with consumption of stored rainwater. As yet however, a general consensus on tank-water quality has not been reached. In this paper it is proposed that achieving reliable microbi...
We investigate the performance of robust estimates of multivariate location under nonstandard data contamination models such as componentwise outliers (i.e., contamination in each variable is independent from the other variables). This model brings up a possible new source of statistical error that we call “propagation of outliers.” This source of error is unusual in the sense that it is genera...
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