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Articles by K. Azam
Total Records ( 2 ) for K. Azam
  M. Pourmahabadian , M. Adelkhah and K. Azam
  Heat stress is a common health problem throughout industry. Any heat stress evaluation requires some exposure assessment of climatic conditions, especially air temperature, humidity, and speed, along with the average temperature of the solid surroundings. In this paper workplace environmental climatic parameters were measured and then evaluated by Wet Bulb Globe Temperature, Corrected Effective Temperature, Heat Stress Index, and Allowable Exposure Time indices among 40 workers in a glass manufacturing unit in Tehran. Also, the effect of available heat control devices on heat stress indices was investigated. The results of this study showed that the obtained heat stress index in individual section and press units is exceeded from 100 (in individual section unit: 302.6, in press unit: 283.6). Also, it is found that the mean average of allowable exposure time in individual section and press units were 13.15 and 12.26 minutes exposure for one hour, respectively. No significant relationship was found between environmental parameters in three parts of body regions (height of head, abdomen and ankle) except for measured air velocity in both units (P<0.007). Positive correlation was found between wet bulb globe temperature, corrected effective temperature and heat stress index indices, but negative correlation was found between allowable exposure time and other indices. Mann Whitney non-parametric test revealed significant relationships in wet bulb globe temperature, corrected effective temperature, heat stress index and allowable exposure time indices when metallic shield was used as heat absorber.
  K. Azam , M.Z. Basher , M.Y. Ali , M. Asaduzzaman and M.M. Hossain
  Organoleptic, microbiological and biochemical qualities of four dried fish samples (Mugil cephalus, Scoliodonshorrakowah, Harpodon nehereus and Setipinna phasa) were assessed in summer and winter season and their qualities were compared. The organoleptic score of the samples collected in winter were higher than summer season. The standard plate count (SPC) of different samples in summer and winter indicated an acceptable microbial load. Total Coliform (TC) counts of the samples in summer and winter were found to vary between <3 MPN g-1 to 4 MPN g-1 and had no differences except for Mugil cephalus (4 MPN g-1 in winter) and Harpodon nehereus (4 MPN g-1 in summer). Total Coliform (TC) counts of rest of the samples were <3 MPN g-1. The faecal coliform counts of all the samples were also <3 MPN g-1. Vibrio and Salmonella were not detected in any of the four samples. A slight variation was observed in moisture, ash, protein and fat content of the samples in summer and winter. Moisture, ash, protein and fat content of Parshe were higher in summer. In case of Mugil cephalus and Scoliodon shorrakowah, TVB-N was higher in winter than summer. TMA-N content of the two species (Mugil cephalus and Scoliodon shorrakowah) showed a similar pattern to that of TVB-N. TVB-N and TMA-N content of the remaining two species i.e. Harpodon nehereus and Setipinna phasa showed a reverse pattern in comparison to Mugil cephalus and Scoliodon shorrakowah. Mugil cephalus and Harpodon nehereus showed higher pH in winter than summer while, the pH in Scoliodon shorrakowah and Setipinna phasa was higher in summer.
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