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1998年江西省天气异常,发生了继1954年以来又一次特大洪涝灾害,赣江,抚河,信江,饶河,鄱阳湖和长江相继超过历史最高水位,且长江,鄱阳湖水位长期居高不下,洪涝灾害范围之广,强度之大,损失之重,时间之长为建国以来所罕见,本文全面总结了江西省1998年防汛工作,并提出了今后防汛工作亟待解决的问题。 相似文献
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N el-Guebaly JM Lockyer J Drought J Parboosingh BB Juschka WA Weston W Campbell S Chang 《Canadian Metallurgical Quarterly》1995,14(2):23-31
As the initial stage in developing a curriculum to assist family physicians to diagnose and manage alcohol abuse in their practices, questionnaires were mailed to a selected group of family physicians. A total of 117 physicians (34%) completed the questionnaire. The majority of physicians (70.1%) reported that fewer than 10% of their caseload experienced alcohol-related problems. Most physicians (59.3%) did not use any of the standard diagnostic instruments but reported that screening and detection was the most challenging alcohol-related problem along with patient management. The questionnaire identified a number of areas that could be used in the development of educational strategies to increase the expertise of primary care physicians in the diagnosis and management of alcohol-related problems. 相似文献
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深部含油气性的几个问题 总被引:5,自引:0,他引:5
根据蒂曼—伯朝拉和西西伯利亚含油气省深井、超深井资料,介绍了深层构造、储集层、烃源岩及生油气潜力等方面的最新研究成果;分析了预测的生烃潜力与实际情况不一致的原因;给出了地层中的游离甲烷和伴生甲烷在一个较宽深度范围内的分布资料;指出了在评估深层和超深层钻探前景时,单独预测其油气潜力的必要性;在研究俄罗斯深部油气潜力时,应进行超深井钻探,其钻探成果具有很高信息价值 相似文献
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吐哈盆地台南凹陷吐玉克稠油油田北侧钻探的英1井,在中侏罗统西山窑组取心见到了少量含沥青砂岩。笔者利用荧光显微镜对沥青产状及荧光特征进行观察描述,结合区域地质条件的分析研究,得出了砂岩中的沥青是经过剥蚀搬运后再沉积的结论 相似文献
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FENG Feng XU ShiGuo LIU JianWei LIU Dan & WU Bo Institute of Water Environment School of Civil Hydraulic Engineering Dalian University of Technology Dalian China Yellow River Conservancy Technical Institute Kaifeng College of Water Resources Shenyang Agricultural University Shenyang Office of Flood Control Draught Relief in Jilin Province Changchun 《中国科学:信息科学(英文版)》2010,(2)
Taking the flood resources utilization in Baicheng, Jilin during 2002–2007 as the research background, and based on the entropy weight and multi-level & multi-objective fuzzy optimization theory, this research established a multi-level & semi-constructive index system and dynamic successive evaluation model for comprehensive benefit evaluation of regional flood resources utilization. With the year 2002 as the base year, the analyzing results showed that there existed a close positive correlation between flo... 相似文献
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三维定量荧光录井技术应用探讨 总被引:3,自引:1,他引:3
该文简介了OFA-3DI三维荧光录井技术的工作原理,分析了三维荧光与二维荧光录井技术的区别,通过对轻、中、重质原油样品、常用有机添加剂样品、纯净水样的三维荧光图谱及参数特征等方面的分析总结,阐述了三维荧光录井技术的技术特点,通过应用实例,初步建立了吐哈盆地三维荧光油气评价标准,获得了初步认识,认为该技术在识别真假显示、判别流体性质、求取含油饱和度、含油丰度、油源对比等方面,具有较强的技术优势,有良好的应用前景。对资料应用及影响三维荧光录井技术的因素进行了探讨。结合油田实际提出了三维荧光录井技术的下一步工作建议。 相似文献
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ZHENG Pei-nan Physical Oceanography Laboratory Ocean University of China Qingdao China Marine Environmental Ensuring of the Headquarters of General Staff Beijing China WU De-xing LIN Xiao-pei Physical Oceanography Laboratory 《水动力学研究与进展(B辑)》2009,21(2):212-218
The Taiwan Warm Current (TWC) and the Tsushima Warm Current (TSWC) flow northward over the shelf in the East China Sea (ECS), which some previous studies regard as a Taiwan-Tsushima Warm Current (TTWC) System. But the roles of the TWC and TSWC in the formation of the TTWC system have not been clarified. This article will show that the TSWC is more important in the TTWC system. Using a three-dimensional baroclinic model, we conducted several numerical experiments to reveal the dynamic relationship between the TWC and TSWC. The results show that the TWC has little effect on the TSWC, while the TSWC has a significant effect on the TWC. A source-sink driven mechanism along isobaths may be used to explain this phenomenon. The perennial northward flow through the Tsushima Strait pumps the response over the northern shelf in the ECS that gives rise to the TWC. Although the TSWC is located at the "downstream" region, it could induce about 0.5 Sv to TWC in annual mean values. 相似文献