非分布的
- 与 非分布的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Power-law fluid is used to describe the Non-newtonian rheological property of the produced fluid in a polymer-driving well; the governing equations, boundary and initial equations of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially is established in bipolar coordinates system; formulas of instantaneous flow rate and stress distribution on the outwall of the inner cylinder of the unsteady flow of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially are established.
在理论上,用幂律流体模型描述了聚合物驱油井产出液的非Newton流变性;建立了双极坐标系下幂律流体在内管做轴向往复运动的偏心环空中非定常流的控制方程及边界条件和初始条件方程;建立了双极坐标系下幂律流体在内管做轴向往复运动的偏心环空中流动时瞬时流量和流体在内管壁上的压力分布计算公式。
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College of Guandong Business, Guanzhou 510320, China)Abstract: Since large-scale vertical quench furnace is voluminous, whose working condition is a typically complex process with distributed parameter, nonlinear, multi-inputs/multi-outputs, close coupled variables, etc, dynamically decoupling control algorithm of temperature distributed parameter system in the furnace was presented, by which the whole system was decoupled to several subsystems and the implementation of controller was simplified. With finite difference approximation, the space and time step size was solved to ensure the convergency of finite difference approximation. After decoupling, the subsystems were controlled with self-learning PID control algorithm. The results show that the temperature control precision and homogeneity are improved; the overshoot and process in temperature rising period are reduced simultaneity.
摘 要:针对大型立式淬火炉体积庞大,工况复杂,炉内温度分布呈本征非均匀性,具有多输入/多输出、非线性、强耦合等特性,难以实现炉内温度高精度高均匀性控制目标等问题,提出一种温度分布参数系统动态解耦控制算法,其原理是:采用有限维逼近方法将对象解耦为多个独立的子系统,简化控制器的实现过程;通过分析有限维逼近方法的收敛性,获得保证收敛性的空间和时间步长应满足的条件;解耦后的子系统采用自学习PID控制算法,实现炉内温度高精度和高均匀性控制以及升温过程的快速性和小超调。
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To analyze the effects of heterogeneous material characteristics on rock failure,a micro-heterogeneous physical cellular automata model is introduced according to the cellular automata theory from a general power view.In this model,the neighbor is the Moore pattern and the Weibull distribution is adopted to simulate the rock heterogeneousness.
为了分析岩石材料的非均质性对其破坏演化的影响,根据元胞自动机理论,从能量的角度建立了一种能够从细观层次上对岩石破坏演化进行模拟的物理元胞自动机模型,模型引用的Weibull随机分布函数对材料的非均质性进行描述。
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This article first discusses the significance of homogeneity of variance, then studies the general method of transformation for homogeneity of variance on the relation between the data mean and the variance when population distribution is known ,and it uses the Mathematica software to analyse the variety rules between the parameter and the variance in the corresponding transformation.
从方差非齐性数据处理中的变换的必要性入手,根据数据均值与方差之间的关系研究了总体分布已知时的方差齐性变换的一般方法,并利用Mathematica软件分析相应变换中参数与方差之间的图形规律,最后介绍了总体分布未知时的BoxCox变换的一般原理。
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Based on the propagation and transformation law of Wigner distribution function through a general axially nonsymmetrical optical system,investigated is the transform relationship of WDF between the input and the output planes of a pair of cylindrical lenses system which is used widely in optical signal processing .
基于维格纳分布函数在一般非轴对称系统的传播和变换规律,讨论了在光学信息处理系统中常用的双柱透镜系统输入和输出面WDF之间的变换关系,在直角坐标中给出了联系该系统相空间坐标的维格纳分布函数的坐标变换关系式和等价的矩阵表示。
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Stratigraphically, based on the basic theory and methodology of stratigraphy in orogenic belt and stratigraphic geology in the study area, stratigraphy in the Gangdisê collisional orogenic zone is divided into Smith stratigraphy, limited Smith stratigraphy and non-Smith stratigraphy with predominance of the limited Smith statigraphy and non-Smith statigraphy over the Smith stratigraphy.
在造山带地层系统划分上:根据造山带地层学的理论和方法以及研究区地层的分布和特点,论文把冈底斯碰撞造山带的地层系统划分为史密斯、有限史密斯和非史密斯三类不同的地层,并指出除个别地区发育有&史密斯&型地层外,研究区主要发育&有限史密斯型&和&非史密斯型&两种地层系统。
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The infrared radiation characteristics of unsymmetrically two dimensional nozzle are experimentally studied. UTDN is designed and manufactured by prolonging one broad side of a general two-dimensional nozzle AR8 and its aspect radio is 8. Temperature distribution on the axes and spectral IR intensity on the orientation of 0, 10, 30, 60 and 90° on three typical detective planes of the hot plume are measured on hot plume simulation platform of the turbo fan engine.
为了研究非对称二元喷管(Unsymmetrically two-dimensional nozzle, UTDN)的红外辐射特性,首先以宽高比为8的常规二元喷管(AR8)为基础,设计加工了UTDN,然后在涡扇发动机热喷流实验台上测量了UTDN轴线上的温度分布以及在后半球典型探测面内0, 10, 30, 60和90°方向上的红外光谱辐射强度,积分得到辐射强度的空间分布,并在相同的实验条件下,与AR8进行了比较。
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Part II: In accordance with the meaning of Zhuang toponomys, summed up several factors strong associated with the spatial distribution of the Zhuang toponomy,including the altitude, distance to the central cities, and distance to traffic line, whether in the land of paddy soil or irrigation area, the slope and aspect.
第二部分:根据壮语地名的涵义,总结出了海拔高度,与中心城市距离,与交通线距离,是否靠近或在灌溉用地或水稻土范围内、山体坡度、坡向几个与壮语地名的空间分布存在相关性的因子,经过统计分析发现壮语地名和非壮语地名相比较而言在空间分布上具有这样的特点:聚居地海拔高,与中心城市距离远,拥有灌溉耕地的机会多,距离铁路近。
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Aimed at the complexity of fluvial strata, such measures as well cyclical comparison, step control and geological analysis of reference beds have been applied. Moreover the paper has developed a set of methods the techniques to extract the parameters controlling the formation of intra-sandbody thin interbeds. The present study has examined how thin interbeds affect the frame property and heterogeneity of individual sandbodies; revealed the permeability space distribution mode of meandering distributary channel's single side lithosomic body and straight distributary channel's aggrading lithosomic body. Through applying the distributary channel sandbody structural unit classifying and identifying method achievement, some horizontal wells have been deployed to dig the residual oil in the top of hick pay zone in the xing8-9 area, which shows better effect after they have been put into production.
针对分流河流砂体沉积特点采用了旋回对比、分级控制、不同相带区别对待的单油层对比方法;利用取心井、对子井等资料研究形成了分流河道砂体内部结构单元的倾角、倾向、规模等参数的提取方法;搞清了内部结构单元对单一砂体内非均质性的控制作用,建立了分流平原相单一点坝侧积体及顺直型分流河道单一加积体层内渗透率分布模式及剩余油分布模式,应用分流河道砂体结构单元划分方法识别研究成果,在杏树岗油田杏八九区纯油区部署了水平井,投产后见到了较好的厚油层顶部剩余油挖潜效果。
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In other words, underground water is an essential water resource, accounting for 41%-83% of the total. Meanwhile, the formation of limestone soil is slower.(2) Guangxi is a typical karst region. A large difference is noticed in vegetation coverage between karst regions and non-karst regions. The average coverage of bush and forest communities is 14.81% and 12.13% in the karst regions, 1.92% and 31.3% in the non-karst regions.(3) The wide distribution of rocky desertification in Guizhou Province indicates the karst environment is strongly affected by carbonate rocks'properties.
水资源以地下水资源为主,且难开发;土壤资源零星分散,土层薄,易流失;(2)现存广西区植被覆盖特征显示,岩溶石山区森林覆盖率明显低于非岩溶区,同时也暗示着岩溶石山区植被的恢复、演化慢于非岩溶区植被;(3)贵州石漠化分布特征表明岩性对岩溶生态环境的制约;(4)脆弱的岩溶生态环境制约着生态系统的人口承载力。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。