The Beijing Diesel Engine Group Corporation I/E Co. is a subsidiary company under the Beijing Diesel Engine Group Corporation (BDEGC), a foreign window for the enterprise. The BDEGC is the nation’s largest specialize...The Beijing Diesel Engine Group Corporation I/E Co. is a subsidiary company under the Beijing Diesel Engine Group Corporation (BDEGC), a foreign window for the enterprise. The BDEGC is the nation’s largest specialized diesel engine production factory, a super large enterprise at state level. Its main products include six series of motors and the 1040 series light trucks, 6400 and 6401 wagon cars, agricultural self-discharging semitrailers, and light-duty pilothouses and covers. The power of annual diesel engine output has reached 40 million KW, with the products’ coverage rate on the market ranking in a leading position among the same trade nationwide. Since the 1980s, the BDEGC has exported indefinite quantities of展开更多
Founded in 1913, the Changzhou Die-sel Engine Factory has a long historyof more than 80 years. In May 1994,it was transformed into a holding companyby issuing shares. Now, as a national first-class enterprise and a sp...Founded in 1913, the Changzhou Die-sel Engine Factory has a long historyof more than 80 years. In May 1994,it was transformed into a holding companyby issuing shares. Now, as a national first-class enterprise and a specialized productionbase for medium-to-small power diesel enginesunder the Ministry of the Machine-BuildingIndustry, it has been listed as one of the na-tional 500 largest industrial enterprises展开更多
The Beijing Diesel Engine Group is a large trans-regional, transdepartmental and trans-industrial conglomerate with large, key enterprises as its main force and diesel engines as its mainstay. It manages diversificati...The Beijing Diesel Engine Group is a large trans-regional, transdepartmental and trans-industrial conglomerate with large, key enterprises as its main force and diesel engines as its mainstay. It manages diversification integrating technology, industry, trade and scientific research. It is formed of a展开更多
Exposure to diesel engine exhaust(DE) is a major concern in underground mines. It has been linked to cardiopulmonary diseases and is classified as a human carcinogen. The goal of this study is to assess DE exposures i...Exposure to diesel engine exhaust(DE) is a major concern in underground mines. It has been linked to cardiopulmonary diseases and is classified as a human carcinogen. The goal of this study is to assess DE exposures in workers at two underground gold mines, to compare exposure levels within and between the mines, and to compare different methods of measuring DE exposures, namely respirable combustible dust(RCD), elemental carbon(EC) and total carbon(TC). Ambient and personal breathing zone(PBZ) measurements were taken. Side-by-side monitoring of RCD and of the respirable fraction of EC and TC(EC_Rand TC_R) was carried out in the workers' breathing zone during full-shift work.Regarding ambient measurements, in addition to EC_R, TC_Rand RCD, a submicron aerosol fraction(less than 1 mm) of EC and TC was also sampled(EC_1and TC_1). Average ambient results of 240 mg/m^3 in RCD, 150 mg/m^3 in EC_Rand 210 mg/m^3 in TC_Rare obtained. Average PBZ results of 190 mg/m^3 in RCD,84 mg/m^3 in EC3Rand 150 mg/min TC_Rare obtained. Very good correlation is found between EC_Rand EC_1 with a Pearson correlation coefficient of 0.99(p < 0.01) calculated between the two logtransformed concentrations. No differences are reported between EC_Rand EC_1, nor between TC_Rand TC_1, since ratios are equal to 1.04, close to 1, in both cases. Highest exposures are reported for loadhaul-dump(LHD) and jumbo drill operators and conventional miners. Significant exposure differences are reported between mines for truck and LHD operators(p < 0.01). The average TC_R/EC_Rratio is 1.6 for PBZ results, and 1.3 for ambient results. The variability observed in the TC_R/EC_Rratio shows that interferences from non-diesel related organic carbon can skew the interpretation of results when relying only on TC data.展开更多
文摘The Beijing Diesel Engine Group Corporation I/E Co. is a subsidiary company under the Beijing Diesel Engine Group Corporation (BDEGC), a foreign window for the enterprise. The BDEGC is the nation’s largest specialized diesel engine production factory, a super large enterprise at state level. Its main products include six series of motors and the 1040 series light trucks, 6400 and 6401 wagon cars, agricultural self-discharging semitrailers, and light-duty pilothouses and covers. The power of annual diesel engine output has reached 40 million KW, with the products’ coverage rate on the market ranking in a leading position among the same trade nationwide. Since the 1980s, the BDEGC has exported indefinite quantities of
文摘Founded in 1913, the Changzhou Die-sel Engine Factory has a long historyof more than 80 years. In May 1994,it was transformed into a holding companyby issuing shares. Now, as a national first-class enterprise and a specialized productionbase for medium-to-small power diesel enginesunder the Ministry of the Machine-BuildingIndustry, it has been listed as one of the na-tional 500 largest industrial enterprises
文摘The Beijing Diesel Engine Group is a large trans-regional, transdepartmental and trans-industrial conglomerate with large, key enterprises as its main force and diesel engines as its mainstay. It manages diversification integrating technology, industry, trade and scientific research. It is formed of a
基金financially supported by the Fonds de recherche du Québec Nature et technologies (FRQNT)
文摘Exposure to diesel engine exhaust(DE) is a major concern in underground mines. It has been linked to cardiopulmonary diseases and is classified as a human carcinogen. The goal of this study is to assess DE exposures in workers at two underground gold mines, to compare exposure levels within and between the mines, and to compare different methods of measuring DE exposures, namely respirable combustible dust(RCD), elemental carbon(EC) and total carbon(TC). Ambient and personal breathing zone(PBZ) measurements were taken. Side-by-side monitoring of RCD and of the respirable fraction of EC and TC(EC_Rand TC_R) was carried out in the workers' breathing zone during full-shift work.Regarding ambient measurements, in addition to EC_R, TC_Rand RCD, a submicron aerosol fraction(less than 1 mm) of EC and TC was also sampled(EC_1and TC_1). Average ambient results of 240 mg/m^3 in RCD, 150 mg/m^3 in EC_Rand 210 mg/m^3 in TC_Rare obtained. Average PBZ results of 190 mg/m^3 in RCD,84 mg/m^3 in EC3Rand 150 mg/min TC_Rare obtained. Very good correlation is found between EC_Rand EC_1 with a Pearson correlation coefficient of 0.99(p < 0.01) calculated between the two logtransformed concentrations. No differences are reported between EC_Rand EC_1, nor between TC_Rand TC_1, since ratios are equal to 1.04, close to 1, in both cases. Highest exposures are reported for loadhaul-dump(LHD) and jumbo drill operators and conventional miners. Significant exposure differences are reported between mines for truck and LHD operators(p < 0.01). The average TC_R/EC_Rratio is 1.6 for PBZ results, and 1.3 for ambient results. The variability observed in the TC_R/EC_Rratio shows that interferences from non-diesel related organic carbon can skew the interpretation of results when relying only on TC data.
