نتایج جستجو برای: dust removal
تعداد نتایج: 182607 فیلتر نتایج به سال:
Many studies have been done on various properties of dust and one of the most important characteristics of dust is the ability to carry different microorganisms from the source points. The aim of this study was to investigate the bacterial and fungal community of dust and to identify its dominance species in a single event of intense dust storm, in the northern regions of Sistan and Blauchestan...
BACKGROUND The traditional cyclone has been developed for the removal of airborne silica particles from local exhaust ventilation (LEV). The objective of this research was to evaluate the effects of velocity and particles load on efficiency of cyclone in the Stone Crushing Units at Azendarian Area. METHODS After the designing and installing the traditional cyclone, downstream and upstream sam...
The traditional cyclone with spray scrubber was developed for the removal of airborne silica particles from local exhaust ventilation (LEV). The objective of this research is to evaluate the efficiency of this process for removing silica particles in LEV. After designing and installing a traditional cyclone and spray scrubber, air samples were obtained at the inlet and outlet of the apparatus. ...
BACKGROUND There is limited information about the removal of allergens by laundry washing. OBJECTIVE The purpose of this investigation was to determine the dynamics of the removal of mite allergen (Der p 1) and cat allergen (Fel d 1) from bed dust during simulated laundry processes. METHODS Three studies were performed. The first compared combinations of 4 laundry agents (water alone, soap,...
Introduction: In recent years, frequency and intensity of dust storms have been increased because of human destructive activities and caused significant loss in different aspects of hygienic and health, environmental and socio-economic sections. Therefore, detection and trace of dust storms in shortest time is the first effective step in preparation and implementation of strategic and operation...
Abstract The increasing passenger volume and the rapid development of electric vehicle industry make electricity consumption expressway service area grow day by day. It is great significance to study planning design method microgrid in area. This paper established a wind-photovoltaic-storage capacity model for areas, which considered dust removal maintenance photovoltaic panels. multi-objective...
background: composition of dust in the air due to contact with human via inhalation, ingestion and skin absorption will have a large impact on public health. in the learning environments such as universities, many people spend most of their day in contact with the dust. the purpose of this study was to evaluate the concentration of heavy metals lead, chromium and copper in the training space of...
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