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The interlayer oxidized zone and the concentration of uranium has the typical characters of low temperature geochemical processes. Interlayer oxidized zone can be defined from the bedrock to horizon C under hypergene weathering by such parameters as chemical metamorphosing、index of chemical weathering and index of mineral chemical differentiation.(2)Major elements can be divided into sensitive group、 active、 weak active and inert groups according to chemical metamorphosing parameter and fractional migration potential. For major elements of multivalent in the active group( Fe_2O_3、 FeO) and U, the migration and concentration trend in interlayer oxidized zone is apparent.

层间氧化带形成和铀富集成矿是地下水在低温、常压、开放体系、非平衡状态对围岩长期作用结果,元素含量及其有关地球化学参数在氧化带不同亚带中表现出一定的变化和分布规律,除Fe_2O_3、FeO、Fe_2O_3/FeO外其它元素含量及其参数只在统计学上呈现规律性变化,而不具分带意义,具有典型的低温地球化学作用特点;利用风化作用化学蚀变参数PC值、化学风化指数ICA和矿物化学分异指数ICV将层间氧化带作用界定于表生风化作用的基岩到母质层阶段。

This method selects two parameters, energy and variance, as the characteristic parameter of trolley track, and successfully in extracts the feature frequency belt of trolley track vibration. Furthermore, this technology is applied to practical engineering programs and has good veracity and reliability.2. According to the research of this thesis on the trolley tracks\' present data, the status classification of trolley track with normal distribution is presented. This method divides trolley tracks\' situations into five parts and perfects the classifying method of trolley tracks\' mechanical situation.

具体工作如下;1、将小波包分析方法运用到岸桥小车轨道振动信号的分析中,选取能(来源:A65BC0f论c0文网www.abclunwen.com)量与方差作为轨道的振动特征参数,有效提取出铰点部位与非铰点部位的振动特征频段。2、将正态分布原理引入到岸桥小车轨道铰点机械性能状态的划分之中,并用最大熵概率分布加以验证,准确地反映了实际情况,并定义了正态分布诊断准则的状态分级评价的原则和临界点,方便和简化了状态判断的决策过程。

In this paper, based on a pill-box window model with a conical-shaped alumina ceramic and Ansoft HFSS software, the relation of VSWR with various electrical parameters in th...

本文在前人工作的基础上,基于圆锥形陶瓷盒形输出窗模型,采用Ansoft HFSS三维计算软件的优化模拟,对该输出窗模型的驻波频率特性与各种结构参量的关系进行了优化模拟,分析了该输出窗片结构变化对其表面的电场分布,功率流分布、热量分布的影响,得出最优模型参数。

In this paper, based on a pill-box window model with a conical-shaped alumina ceramic and Ansoft HFSS software, the relation of VSWR with various electrical parameters in the window is simulated; the effects of variations of the output window structure on electrical field intensity, microwave power flow and quantity of heat are analyzed; the electrical characteristics of frequency bandwidth, power capability and heat dissipation for the pill-box window with conical-shaped or disk alumina ceramic are discussed, which shows that, with a rational structure of the window with conical-shaped alumina ceramic, the output capability of microwave peak and average power may greatly be increased, the secondary electron emission may effectively be suppressed, and heat dissipation may become more uniform and be easier for cooling.

本文在前人工作的基础上,基于圆锥形陶瓷盒形输出窗模型,采用Ansoft HFSS三维计算软件的优化模拟,对该输出窗模型的驻波频率特性与各种结构参量的关系进行了优化模拟,分析了该输出窗片结构变化对其表面的电场分布,功率流分布、热量分布的影响,得出最优模型参数。并且探讨了陶瓷窗片的形状和几何结构对改善输出窗的频带特性、提高峰值功率和平均功率、抑制二次电子倍增方面的作用。

Based on the ultrasound field solution, temperature in tissues were estimated. Temperature elevation of some points were given in the figures. The influence of direction ratio to temperature distribution was discussed. It provided the ref...

在求解声场的基础上,对该类换能器的声场在组织中的温度分布进行估计,给出了组织内温度随时间变化的曲线,分析了方向比对焦区温度分布的影响,为该类换能器的参数选择和组织中的温度分布估计提供了参考

In order to reduce the effect of probe errors in near-field antenna measurement, the solutions are proposed as follows: On the one hand, theoretical formula of probe-compensated is derived; on the other hand, drop-shaped probe is designed and near-zone gain, far-field patterns, axial ratio, main lobe width, input impedance, voltage standing-wave ratio, electromagnetic field and current distribution of probe are obtained through the computer simulation.

针对近场测量中的重要误差源之一&探头&的影响,本文提出解决方法:一方面用探头补偿的方法,根据洛仑兹互易定理和微波网络理论对补偿的解析式进行详细推导;另一方面用两种不同的仿真软件求解终端开口矩形波导探头的近场增益、远场方向图、轴比、主瓣宽度、输入阻抗、电压驻波比、电场分布、磁场分布、表面电流分布等特性参数,可实现探头增益的修正。

The reservoir rock types in the region of interest are grain limestone, algal limestone, cryptite, siltstone, muddy limestone and mudstone. The thesis identified as a result of changes in the deposition causing the heterogeneity in plane, and then the geological oil reserves have been calculated in accordance with the areal heterogeneity.3、Based on the data of core analysis, bore logging, array induction imaging log and FMI, porosity and permeability model were built using regression analysis. Through testing 45 rock samples, a, b, m, n value were obtained and used to calculate single-layer oil saturation value using the Archie formula. According to the theory of laterolog and inductolog, resistivity ratio and cross plot were used to identification effective thickness. Effective thickness was identified delicately in 103 wells. Based on the over work, active porosity and oil saturation was calculated accurately.4、According to observation of 100 pieces of the thin slices, cast thin slices and 383m core in three wells, the chief diagenesis in this area were compaction, cementation, denudation and cataclasis. Cementation and denudation were universally influenced active porosity this area. The intergranular pores, residual pores and secondary pores were formed in thin carbonated reservoir of lacustrine facies.5、The influence of reservoir heterogeneity to reservoir calculation was analyzed systematically using actual data. And the conclusions were as follows:①The principal reason leading to oil distribution unequal is interior structural feature of reservoir in structural hydrocarbon reservoir.

确定了由于沉积微相的变化而导致的平面非均质性,进而在平面上按照平面非均质单元计算了石油地质储量。3、利用岩心分析、常规测井曲线与阵列感应、成像测井资料相结合,分岩性利用回归分析方法建立了储层孔隙度、渗透率模型;通过对45块岩样进行岩电试验,获取了a、b、m、n值,利用阿尔奇公式计算了各单层含油饱和度值;根据侧向电阻率和感应电阻率串并联特性,利用电阻率比值法与常规交会图法相结合重建了有效厚度图版,对全区103口井目的层段进行了有效厚度精细划分,通过以上工作,准确求取了储量计算单元内有效厚度参数、有效孔隙度参数以及含油饱和度参数。4、通过对研究区3口井383m岩心观察,100余块薄片、铸体薄片镜下鉴定得出:油泉子油田上、下油砂山组储层主要成岩作用是压实作用、胶结作用、溶蚀作用和破裂作用,其中溶蚀作用、胶结作用最普遍,这两种作用对有效孔隙度影响最大,以上成岩作用形成了原生粒间孔、粒间残余孔和次生孔隙(如粒间溶孔、粒内溶孔、铸模孔、晶间孔等)为主的薄层湖相碳酸盐岩储层。5、利用实际资料,系统分析了油藏非均质对储量计算的影响,认为:①对于构造油气藏而言,油气藏构造及断裂特征是造成油气分布不均的首要原因,储集条件相同的条件下,构造高部位有利于储存油气,油气在垂向的重力分异体现了油气藏内部构造的不均一特征。

By comparing the study results and found suitable structure layout and structure of glass tank size parameters choice for different working condition float glass tank.

在熔窑基本结构参数不变的情况下,通过改变熔窑的结构布局和尺寸参数,研究在一定的结构布局和尺寸参数变动情况下浮法玻璃熔窑的流场和温度场分布的规律。

The probability grading for quantitative characters 400 large-flowered cultivars were chosed and their eighteen chief quantitative characters were tested and recorded according to the test method of morphological characters in the .The empirical distributions were determined by nonparametric test after the distribution range,mean value and variation coefficients of these characters were calculated and frequency diagrams were drawn.

数量性状分级选择代表性强的400个大菊品种,参照《菊花DUS测试指南》的形态性状测试方法,检测其18个主要的数量性状,并对性状的分布范围、平均值、变异系数进行统计计算,在此基础上,绘制了分布频次图,结合非参数检验判断性状的分布类型。

Exploring the rule of nucleation coefficients will be a possible wayapproach microvoids nucleation mechanism. OFHC Cu and pure Cu incipient spalled under~10~5s~(-1)strain rates electric gun driven twostage flyer impacts loading.

极高应变率下Cu、Al中微孔洞分布均表现为成核规律相关参数与应变率有关,探求不同应变率、不同材料参数加载下,NAG模型参数的变化规律是研究微孔洞成核机理和规律的可行方法。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。