نتایج جستجو برای: changing rooms good
تعداد نتایج: 569037 فیلتر نتایج به سال:
Background: Radon, thoron and their progenies are the most important contributions to human exposure from natural sources. Radon exists in soil gas, building materials, Indoor atmosphere etc. Among all the natural sources of radiation dose to human beings, inhalation of radon contributes a lot. The work presented here emphasizes the long term measurements of radon, thoron and their proge...
Teachers often suffer from health problems related to their voice. These problems are related to their working environment, including the acoustics of the lecture rooms. However, there is a lack of studies linking the room acoustic parameters to the voice produced by the speaker. In this pilot study, the main goals are to investigate whether objectively measurable parameters of the rooms can be...
The concentration levels of airborne bacteria were measured in clinical/hospital rooms in Upper Silesia, Poland, in buildings of varying conditions. It was found that the typical level of bacterial aerosol concentration is about 10 3 CFUm -3 in clinical outpatient rooms and ranges from 10 2 CFUm -3 to 10 3 CFUm -3 in hospitals, depending on the number of occupants and physical quality of the bu...
The use of laminar airflow rooms and a life island unit for comprised patients was evaluated. Six patients spent a total of 170 days in the laminar airflow rooms and 112 days in the life island unit, and none acquired any exogenous infection. Patients were febrile for 7 out of 170 days (4.1%) in the laminar airflow rooms and 4 out of 112 days (3.6%) in the life island unit. No significant diffe...
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