نتایج جستجو برای: rubber industry
تعداد نتایج: 208853 فیلتر نتایج به سال:
OBJECTIVES To determine the cancer specific mortality by work area among active and retired male workers in the German rubber industry. METHODS A cohort of 11,663 male German workers was followed up for mortality from 1 January 1981 to 31 December 1991. Cohort members were classified as active (n = 7536) or retired (n = 4127) as of 1 January 1981 and had been employed for at least one year in...
A case-control study of bladder cancer was conducted in five United States rubber and tyre companies to determine if there were high-risk jobs and work areas within the industry. The study included 220 male cases of bladder cancer, of whom 107 were identified from hospital record reviews and 113 from death certificates. Each case was matched individually with two industry controls by sex, race,...
Malodourous emission from raw natural rubber (NR) processing activities has become a public nuisance since residential and public development areas are gradually expanding near raw NR processing factories. The malodourous vapour mainly consists of volatile fatty acids (VFA) released from the breakdown of non-rubber constituents during drying stage of the raw rubber processing. An improved sampl...
A broad spectrum of substances is used in the rubber industry, many of them being genotoxic and/or carcinogenic. Convincing evidence of an excess of certain forms of cancer among rubber workers has been provided. The objective of this study was to determine the genotoxic effects in a group of individuals engaged in the production of rubber tyres from a Portuguese factory. Peripheral blood sampl...
Rapid development of the automobile industry has brought disposal problem waste rubber tires. Mixing tires into concrete can not only solve environmental problems but also improve mechanical properties concrete. Rubber aging is one main factors to affect rubberized Therefore, an FEM model in mesoscale established this paper. The influence on uniaxial compression damage u;studied. results show t...
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