西沙群岛海产绿藻的研究Ⅲ     

曾呈奎  董美龄 《海洋科学集刊》1983,(20):109-122

本文继续报道产于我国广东省西沙群岛的海产绿藻9种,除2种已有记载外,其余7种都是西沙群岛的新记录,其中1种为新种一簇囊缢丝藻Boodleopsis aggregata sp.nov.,2种为我国的新记录—太坦松藻Codium taitense Setchell,钱币状蕨藻Caulerpa nummularia (Harv. ) Reinke。  相似文献   

GIS访问网络数据库中若干技术问题的探讨     

值得一提的是ESRI公司的空间数据库引擎 《地球科学》1998

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油气化探多元信息提取及含油气性灰色识别     

Chen Shouyu 《地球科学》1998,23(1):18

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Bandwidth Scale for Frequency Spectrum of Sea Waves     

王伟  孙孚  钱成春  邓拥军 《中国海洋工程》2000,14(2):203-210

It is well known that energy spectrum bandwidth should be able to reflect the degree of energyconcentration.However.the commonly used bandwidth factors defined by Longuet-Higgins could not fitthe concept satisfactorily.A new kind of spectrum bandwidth scale factor with a clear physical meaning isgiven in the present paper and a constant is obtained which reveals the intrinsic characteristics of seawaves.Thereby a universal relationship between significant wave height of sea waves and spectrumbandwidth is established.  相似文献   

微波遥感低空大气温度层结的研究   总被引：3，自引：0，他引：3  

赵柏林  尹宏  胡成达  李慧心  杜金林  朱元竞  王义举  施庶民 《气象学报》1981,39(4):441-451

根据大气噪音谱,用接收5mm微波噪音,遥感低空大气温度层结。研制了5mm微波辐射计(C型机 v=54.4 Gc)。在野外实验中与无线电探空仪对比,在3km以下,温度层结偏差2—3°K。为了能够在云天情况下遥感大气温度层结,研制了8mm微波辐射计,并进行了接收大气噪音的实验。  相似文献   

哈佛函数的计算和应用:(Ⅰ)计算     

董双林  吴津生  王宗皓 《气象学报》1981,39(1):1-9

此课题由三部分组成:(Ⅰ)计算、(Ⅱ)全球资料分析及(Ⅲ)全球谱模式。本文主要讨论哈佛(Hough)函数的数值计算精确度和物理解释。这些计算结果的应用将在(Ⅱ)和(Ⅲ)中另文讨论。  相似文献   

Siliceous Cementation of Chlorite-Coated Grains in the Permian Sandstone Gas Reservoirs, Ordos Basin     

FAN Aiping  YANG Renchao  LI Jinbu  ZHAO Zhongjun  A.J. 《《地质学报》英文版》2017,91(3):1147-1148

<正>Objective It has long been controversial that whether authigenic chlorite coatings in sandstone reservoirs can prevent precipitation of siliceous cements.It is commonly believed that chlorite coatings(also called chlorite films,chlorite linings,or chlorite rims)may prevent quartz overgrowth,and thus help the preservation of original pores in sandstone reservoirs.Recently,however,this assumption has been challenged by reservoir geologists.This dispute cannot be solved by mere analysis of thin sections,nor by chemical equations and diagenesis analysis.The main objective of the present contribution is to shed light on this  相似文献   

钻探微机多功能监测系统的研制及其推广应用     

戴学恕  鄢泰宁  补家武  叶郭范 《地球学报》1996,17(Z1):251-257

DDW钻探微机多功能监测系统由传感器、接口电路、工业微机、输出与报警设备组成。可随钻监测和记录钻进过程,对孔内异常工况报警,跟踪钻孔轨迹,从而改变凭经验打钻的现状,提高钻探效率,降低事故率,保证好的地质效果。  相似文献