نتایج جستجو برای: photocopy and printing workers
تعداد نتایج: 16848721 فیلتر نتایج به سال:
Exposure to toluene vapour enhances hepatic microsomal enzyme function in animals as assessed by the metabolism of the test drug antipyrine. Thirty six printing trade workers with long term occupational exposure to a mixture of organic solvents and 39 matched controls were randomly allocated into four groups. Eighteen printers and 21 controls were exposed to 100 ppm of toluene during 6.5 hours ...
Thousands of workers are employed in textile industries under different job categories including dyeing, printing, finishing, cutting, weaving and spinning. The textile industry workers are exposed to a number of chemicals including dyes, solvents, optical brighteners, finishing agents and numerous types of natural and synthetic fibre dusts which affect their health. In this paper an attempt ha...
The aim of this study is to develop methodologies suitable for conducting multiple organic solvent exposure assessments for workers in the plastic material printing industries. By reviewing the existing sampling and analytical methods for the seven organic solvents used in the industry (including isopropyl alcohol, 2-butanone, ethyl acetate, methyl isobutyl ketone, toluene, n-butyl acetate, and...
In Rajasthan 21,000 workers are engaged in hand processing textile industries (process gray/raw cotton cloth). They are exposed to hazards of the textile industries besides the harsh conditions of the desert which contributes to adverse effects on their health. To explore the occupational health problems of the desert textile workers and their association with nutrition and environmental factor...
Background and Aim The oxides of sulphur are among those chemical substances that are increasingly used and their consumption is even growing in different places everyday. Sulphuroxides are used in chemical industries, paper manufacturing, printing rollers, recovering burned (consumed) coal, supplying and producing sulphuric acid, and in bleaching liquids. Determination and evaluation of th...
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Printing and Annealing In article number 2207447, Weiwei Li, Manzhang Xu, Jiuwei Gao, Xuewen Wang, Wei Huang, co-workers demonstrate how MoS2 patterns can be directly synthesized on polymer substrates using a printing-and-annealing strategy. These patterned layers exhibit exceptional mechanical durability chemical stability, which contribute to the realization of flexible sensing electronic dev...
3D Printing In article number 2208365, Rihan Hai, Cheng Sun, and co-workers report a method for printing the key optical optomechanical components of miniature accommodating microscope in 50 min less than $4. Synergizing built-in voice-coil-motor compliant optomechanics facilitates focus stacking functionality extending imaging depth. enables digitized component manufacturing, part-count reduct...
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