介绍了海洋工程装备的腐蚀环境,阐述了海洋工程装备在海洋大气区、潮差浪溅区、海水浸没区、海泥区等不同部位的腐蚀特点及重防腐涂料的选用及性能评价标准,分析了目前国际上通用的海洋工程防腐设计标准结合实际案例,研发并构建了适应...介绍了海洋工程装备的腐蚀环境,阐述了海洋工程装备在海洋大气区、潮差浪溅区、海水浸没区、海泥区等不同部位的腐蚀特点及重防腐涂料的选用及性能评价标准,分析了目前国际上通用的海洋工程防腐设计标准结合实际案例,研发并构建了适应苛刻海洋环境中的海洋工程钢结构防腐涂层体系。研究表明:构建的海洋工程钢结构防腐涂层体系性能卓越,满足NORSOK Standard M-501标准认证,可保障海洋工程装备在湿、高盐、干湿交替、浸没等强腐蚀海洋环境下的安全稳定运行。展开更多
We report results of our optical photometric observations of ten gamma-ray loud blazers, namely: 0219+428 (3C66A), PKS 0420-014 (OA 129), S5 0716+714, 0754+100 (OI 090.4), 0827+243 (OJ248), 1652+398 (Mrk 501), 2200+42...We report results of our optical photometric observations of ten gamma-ray loud blazers, namely: 0219+428 (3C66A), PKS 0420-014 (OA 129), S5 0716+714, 0754+100 (OI 090.4), 0827+243 (OJ248), 1652+398 (Mrk 501), 2200+420 (BL Lacertae), 2230+114 (CTA 102), 2251+158 (3C 454.3) and 2344+514. The observations were carried out in September-October, 2000 using the 70 cm optical telescope at Abstumani Observatory, Georgia. We found intra-day variations in 0420-014, S5 0716+714, BL Lacertae and CTA 102. A variation of 0.3 magnitude over a time scale of about 3 hours was observed in the R passband in BL Lacertae on JD 2451827. We did not detect any variation in 3C 66A, Mrk 501, or 3C 454.3 during our observations. Nor did we detect any clear evidence of variation in 1ES 2344+514 during our two weeks' observing run of the TeV gamma-ray source.展开更多
文摘介绍了海洋工程装备的腐蚀环境,阐述了海洋工程装备在海洋大气区、潮差浪溅区、海水浸没区、海泥区等不同部位的腐蚀特点及重防腐涂料的选用及性能评价标准,分析了目前国际上通用的海洋工程防腐设计标准结合实际案例,研发并构建了适应苛刻海洋环境中的海洋工程钢结构防腐涂层体系。研究表明:构建的海洋工程钢结构防腐涂层体系性能卓越,满足NORSOK Standard M-501标准认证,可保障海洋工程装备在湿、高盐、干湿交替、浸没等强腐蚀海洋环境下的安全稳定运行。
基金Supported by the National Natural Science Foundation of China
文摘We report results of our optical photometric observations of ten gamma-ray loud blazers, namely: 0219+428 (3C66A), PKS 0420-014 (OA 129), S5 0716+714, 0754+100 (OI 090.4), 0827+243 (OJ248), 1652+398 (Mrk 501), 2200+420 (BL Lacertae), 2230+114 (CTA 102), 2251+158 (3C 454.3) and 2344+514. The observations were carried out in September-October, 2000 using the 70 cm optical telescope at Abstumani Observatory, Georgia. We found intra-day variations in 0420-014, S5 0716+714, BL Lacertae and CTA 102. A variation of 0.3 magnitude over a time scale of about 3 hours was observed in the R passband in BL Lacertae on JD 2451827. We did not detect any variation in 3C 66A, Mrk 501, or 3C 454.3 during our observations. Nor did we detect any clear evidence of variation in 1ES 2344+514 during our two weeks' observing run of the TeV gamma-ray source.
