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载流荧光分析仪在选矿生产中应用效果分析
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作者 罗秋红 占小龙 《有色金属工程》 CAS CSCD 1998年第S1期90-93,共4页
介绍COURIER-30型X荧光分析仪的工作原理、校正方法、标定技术及在凡中铅锌矿选矿厂的应用情况,并就其取代化验后在选矿生产中的应用效果进行技术分析。
关键词 载流X荧光分析仪 校正样 数模 射线强度
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Characteristics analysis on high density spatial sampling seismic data 被引量:11
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作者 Cai Xiling Liu Xuewei +1 位作者 Deng Chunyan Lv Yingme 《Applied Geophysics》 SCIE CSCD 2006年第1期48-54,共7页
China's continental deposition basins are characterized by complex geological structures and various reservoir lithologies. Therefore, high precision exploration methods are needed. High density spatial sampling is a... China's continental deposition basins are characterized by complex geological structures and various reservoir lithologies. Therefore, high precision exploration methods are needed. High density spatial sampling is a new technology to increase the accuracy of seismic exploration. We briefly discuss point source and receiver technology, analyze the high density spatial sampling in situ method, introduce the symmetric sampling principles presented by Gijs J. O. Vermeer, and discuss high density spatial sampling technology from the point of view of wave field continuity. We emphasize the analysis of the high density spatial sampling characteristics, including the high density first break advantages for investigation of near surface structure, improving static correction precision, the use of dense receiver spacing at short offsets to increase the effective coverage at shallow depth, and the accuracy of reflection imaging. Coherent noise is not aliased and the noise analysis precision and suppression increases as a result. High density spatial sampling enhances wave field continuity and the accuracy of various mathematical transforms, which benefits wave field separation. Finally, we point out that the difficult part of high density spatial sampling technology is the data processing. More research needs to be done on the methods of analyzing and processing huge amounts of seismic data. 展开更多
关键词 high density spatial sampling symmetric sampling static correction noise suppression wave field separation and data processing.
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