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Nowadays the researches of frequency distribution of data are almost limited to normal distribution, while other distributions are seldom studied. Many frequency distributions of data are not normal. This kinds of frequency distribution of data widely exist. Unimodal frequency distribution of data often occurs.
现在绝大多数关于频数资料分布的研究都是基于正态分布的,而对其他类型的分布研究得比较少,实际上频数分布在许多情况下并非呈现正态分布,分布的形态丰富多彩,很多资料都是呈现单峰分布,本研究就是利用数学上常见的八种连续型变量的分布类型去拟合单峰频数资料。
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First, we design a metadata transformation system which can transform the news articles to four popular metadata formats: DC, NITF, RSS and DAC. The system not only supports metadata transformation but also RSS subscription and batch exportation for Union Catalog.
首先,我们设计一个后设资料转换系统,可转出DC、NITF、RSS和DAC等四种国内外普遍盛行之后设资料格式;本系统不仅能支援后设资料自动转换,也能衍生出RSS订阅和联合目录大批汇出等应用。
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Limitations of this study include observational design, use of data that had already been collected, missing data on tumor size for more than half of cases, lack of data on chemotherapy, and possible residual confounding by unmeasured predictors.
研究限制包括属於观察性设计,使用现有的资料,半数以上案例缺乏肿瘤大小的资料,缺乏化疗的资料,可能有其他未探讨的可能干扰因素。
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Since the well-log data interpretation is a basic step of the joint inversion, the paper studied the inversion algorithms of two-type problems of lithology and reser voir parameters using well-log data by ANNs and examined the advantages and practi cality of the technique with a large amount of real data.
考虑到测井资料是联合反演中的基本的一步,本文研究了应用人工神经网络根据测井资料预测岩性和储层参数这两类问题的数据驱动的反演算法,并以大量的实际资料处理结果,证实了该方法的实用性和优越性。
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The petrophysical properties reflect reservoir heterogeneity by integration of well testing with reservoir performance are acquired by means of geostatistics , multi-parameter cluster analysis , neural network technique , a set of method of quantitative division and estimation to reservoir quality unit in carbonate pools of fracture and vug type is explored , the estimated parameter for different unit is acquired. which lead to better the understanding of reservoir behavior and heterogeneity.
以地质统计学技术、神经网络技术和多参数聚类分析技术为手段,利用试井资料及其它开发动态资料,动静态资料相结合,研究和求取了反映岩溶储层非质性的物性参数;研究和探索了一套缝洞型碳酸盐岩储层开发储集质量单元的定量划分和评价方法,建立了不同单元的储层质量评价参数,深化了对缝洞型碳酸盐岩储层非均质性的认识。
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The preprocessing and standardization of logging data;②lithologic interpretation and calculation of the parameters of petro-physical property;③the recognition of fracture and vug and calculation of whose parameters;④the research on the judge of the gas pay based on the logging data;⑤the determination of the abnormal pore pressure;⑥optimized programming to finish processing and interpreting the data of thirty wells in the northeast of Sichuan based on the Forward log interpretation platform.
本文以气层识别和异常压力计算为研究主线,综合利用川东北地区录井、钻井、取心和测试等资料,采用多种新方法新技术,重点开展了六个方面的研究工作:①测井资料的预处理及标准化研究;②岩性解释及物性参数计算;③缝洞识别及其参数计算;④基于录井、测井资料的气层判释研究;⑤异常地层孔隙压力确定;⑥基于Forward测井解释平台,优化编程,完成川东北地区30多口井测井数据处理与解释工作。
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The basic principles of walkaway VSP technique,the method of the geometry designing, data acquisition, data processing, and resulting data interpretation and application were discussed detailedly in this paper based on the comprehensive study on Walkaway VSP technique.
本论文对Walkaway VSP技术进行了较为全面的研究,详细论述了该技术的基本原理、观测系统设计方法、资料采集方法、资料处理方法以及成果资料解释应用方法。
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It will provide technology support for waterflood at later stage of high water-cut.This paper describes how to identify high permeability zones accord...
本文从高渗透带的基本特征出发,应用其在测井资料上的鲜明特征结合动静态等资料加以识别,并开展了应用,其效果表明应用测井资料识别高渗透带油层是可行的。
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The sounding data, ground observation data and weather chart information are used to analyze the main types of thunderstorms in Shanghai, started from the situation field of thunderstorms.
利用上海地区1999-2007年的探空资料、地面观测资料和历史天气图资料,从雷暴发生的形势场入手,分析上海地区雷暴主要类型。
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In the article, we analysised the rainstorm process using conventional information, encryption data, strength ,speed and wind profile data of Doppler radar, discussed the atmospheric circulation system in the westing process of the subtropical high; revealed the different reasons caused two heavy precipitation (more than 10 mm per hour) and the possibility of small and medium-scale system existed, displayed the vertical distribution of the wind field over the stations in the rainstorm process and the close relationship between the transmission., strengthen of the level air-jet and the heavy precipitation, and then proved that the heavy precipitation was caused by the transmission and strengthen of the low-level jet.
利用常规资料,加密观测资料,多普勒雷达强度、速度和风廓线资料等对本过程进行周密细致的分析。探讨了在副热带高压西进过程中与之相配合的大气环流形势和影响系统;揭示了造成两次强降水(1小时大于10 mm以上)的不同原因和中小尺度系统存在的可能性;展示了暴雨过程中测站上空垂直风场的分布特点以及风廓线高低空急流下传和加强与强降水的密切关系,证明了强降水的产生主要由低空急流的下传和加强引起的。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。