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At the same time, artificial neural network was adopted to put forward a new thoughtfulness and effective method for evaluating mineral resources synthetically, which can break through restrictions of statistical models on synthetical assessment of mineral resources. Shooting at nodi and pivotal problems in GIS-based mineral resources assessment, the integration of assessing methods of mineral resources, GIS technology and artificial neural network were emphasized.

以计算机可视化技术便捷、直观的展现出矿产资源综合评价的全过程;利用GIS强大的数据管理和空间分析功能,有效的解决了多源、多类型、多属性地质数据的处理和分析问题;利用人工神经网络技术突破了统计数学模型对矿产资源综合评价及成矿预测的约束和限制,为矿产资源综合评价提供了一种新思路和有效的方法。

A filtered-X subband precompensation approach is presented, which controls the delay, increases the convergence rate and reduces the computational complexity. In addition, the neural network is used to model the non-linear noise.

此外,利用神经网络来精细模拟实际噪声的高度非线性性,提出模糊归一化收敛步长调整方法以控制开环方案带来的额外误差能量,并给出了数学证明。

At first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu-lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band-pass filter, alternating amplifier, phase sensitive demodulatorn, pulse-width modulation, frequency scale circuit, moment current generator. Finally, using the graphics program language LabV-IEW which is designed for testing field especially by NI accomplishes the solfware design of testing system,realized the testing functions.

首先对加速度计及其测试技术的发展历史和现状,液浮摆式加速度计的工作原理和数学模型等作了简要的介绍,然后确定了以二元调宽脉冲再平衡测试回路为设计方案,并从控制理论的角度进行了分析,着重研究了系统中各部分的传递函数,利用系统开环传递函数分析了系统的稳定性,同时设计了系统的校正网络;分析了二元调宽脉冲再平衡测试回路的分辨率、采样约束以及测试精度等基本问题,并按照系统分析的结果设计了包括前置放大、带通滤波、交流放大、相敏解调、脉宽调制、频标电路以及力矩电流发生器等测试系统各部分硬件电路,验证了电路的正确性,最后按照测试系统的要求,采用了美国NI公司专为测试领域所开发的虚拟仪器工具——LabVIEW作为测试软件开发工具,利用该图形化编程语言完成了测试系统软件部分的设计,实现了测试功能。

In order to clear heterogeneous reservoirs waterflooding performance, and decreased interlayer and within-layer contradictions, and improved the water flooding recovery, experimental study should be conducted first, This paper based on Pucheng Sasan reservoir sandstone cores to study object. Multi-point pressure measurement of water flooding oil experimental apparatus was established. Through the three-layer water flooding experiment to study injection strategy, interlayer interference and recovery factors. True sandstone micro-model water flooding used newly developed color visual image analysis system researched water-drive types, forms of residual oil and waterflood efficiency. Percolation mathematical model was established, black oil simulation program was developed, long-core displacement experimental results were matched, pressure and saturation change were researched by the simulation matching results.

为了明确非均质储层注水开发动态过程,减轻由于层间和层内非均质造成的开发矛盾,提高水驱采收率,本文从实验研究出发,以濮城沙三储层岩心为研究对象,建立了一套带多测压点的多层长岩心水驱油实验装置,通过开展三层水驱油实验,研究注水方式、层间干扰以及采收率影响因素;真实砂岩微观模型水驱油实验采用最新研制的彩色可视化图像分析系统研究水驱类型、残余油形成类型以及水驱油效率;建立并求解渗流数学模型,编制黑油模拟程序,对长岩心驱替实验进行拟合,通过拟合结果研究驱替过程中油水饱和度和压力的变化情况等研究工作。

The new concept of slaking factor combined by the thickness,temperature, flow rate of green liquor; and the slaker temperature,and number of CaO is presanted, and the closed control is realized with slaking factor as main parameter.

提出了将绿液的浓度、温度、流量以及消化器温度和理论上所需氧化钙量5个参数综合成为一个参数——消化因子的新概念,并以消化因子为被控量进行闭环控制;建立了过量灰与消化因子等参数关系的推断数学模型;克服了120min大纯延迟时间的影响;实现了过量灰最佳值控制和苛化过程参数优化。

So during the collection of fault sample data and checking data, the paper sets up the mathematics model of control system first. We cause all kinds of fault in the control system, then collects a variety of fault data. After unitarily dealing, the fault data server as the sample data of training neural network. At the same time, according to the collection of checking data, it examines whether the trained neural network have the function of fault diagnosis.

在故障样本数据及检验数据的采集过程中,首先建立了控制系统的数学模型,人为地让控制系统发生各种故障,从而采集到各种故障数据,经过归一化处理后,作为训练神经网络的样本数据;同时,也采集检验数据,用以检验训练出的神经网络是否能够起到故障诊断的作用。

Because Hobbes was so evidently opposed to the existing academic arrangements, and because De Corpore contained not only tendentious views on mathematics, but an unacceptable proof of the squaring of the circle, mathematicians took him to be a target for polemics.

由于霍布斯特别明显地反对既存的学术安排,也因为他的《论物体》不仅包含偏向数学的观点,而且也包含对&化圆为方&的难以接受的证明,数学家把他作为辩论对象。约翰?

The mathematic model and the neural networks between strength after acidifying and acidified depth can reflect the corrosion condition of mortar and concrete, which have certain referential value for estimating the acidifying resistance durability of concrete in southwest China.

本文最后所得到的腐蚀后的强度和酸化深度的数学模型和神经网络,可以较好的反映混凝土受酸雨腐蚀的变化情况,对我国南方酸雨区的混凝土腐蚀的耐久性和经济评估有一定参考价值。

The maths has not escaped PetroChina chairman Jiang Jiemin, who mused earlier this month that he would start buying proven reserves cheapened by the great deleveraging.

这其中的数学逻辑,没有逃过中石油董事长蒋洁敏的眼光,他在本月早些时候曾思忖着表示,将开始买入在&去杠杆化&洪流中变得便宜的已探明储量。

A delaminating detection method based on binary mathematical morphology detects the total number of nuclepores and the nuclepore radii.

构造了基于灰度数学形态学的二值化方法,提出了基于二值数学形态学的分层提取方法,统计总孔数和孔半径。

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歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。

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