查询词典 spectral distribution

The simulation results of the cylinder-block model were given in the article, consistent with that of Middlemen"s. It was shown that the block part could improve the uniformity of the flow distribution. The analysis of the flow field of some materials with different power-law factor in the die designed by Mckelvey was close to that of Mckelvey"s. It was shown that the flow distribution was uniform in the die that can producesheets with 1200mm in width. During the analysis the flow channel was divided into several parts to get the details about the fluid flow in each area. A conclusion was drawn after analyzing the influence of the die pressure on the flow distribution, that the higher pressure is good for the output and bad for the uniformity of the distribution. Simulation of the die applying the cylindrical main runner showed the fact that when the cylinder replaced the cone the change of uniformity was trivial. The uniformity of the non-block flow channel was so poor that the block in the proper position of the die channel was necessary. The project of the die for the wider sheet was put forth, and the analysis of the fluid flow in the die was shown.

本文模拟了圆柱管缝隙流模型的三维流动场，得到了与Middlemen结论一致的流动均匀性，并通过模拟直观地展示了采用阻尼块可以改善挤出均匀性的现象；分析了多种幂率指数的流体在Mckelvey等人设计的流道模型中的流动分布，得到了与Mckelvey的分析结果接近的压力降和流量偏差；本文建立了1200mm幅宽机头流道的三维有限元模型，并逐个分析各个区域和多个截面的流动分布状况，由此揭示了1200mm幅宽L-型机头流道内的流北京化工大学硕士学位论文动分布基本均匀，并在分析了机头压力对于挤出流动分布的影响后得出结论：较高的机头压力可以获得较大的产量，但是不利于物料均匀分布；模拟了采用圆柱管主流道时机头流道内的流动分布，得出结论：主流道由圆锥管改为圆柱管时对流动均匀性影响不大，通过设置适当的阻尼仍然可以达到挤出平衡；模拟了两端进料式圆柱管无阻尼流道的流动均匀性后得到结论：两端进料式无阻尼结构的流动均匀性较差，宽机头中仍然有必要设置阻尼块；确定宽幅机头流道的基本方案，并设计了一种宽幅防水卷材挤出机头流道的结构，通过流动模拟表明该种结构的流动均匀性较好；考察了宽幅机头对于不同厚度片材的挤出适应性，得到结论：当生产不同厚度的片材时，阻尼块高度需要调整。

Joint distribution system is the Nerve network of the chain enterprise. As the basic operation establishment, distribution center that is the nerve hinge of joint distribution plays an important role in joint distribution.

共同配送体系是连锁经营的&神经脉络&，配送中心作为共同配送运作基础设施，构成共同配送活动的神经枢纽，对实施共同配送发挥着重要的作用。

When we study statistical distribution of DCT residues, we found the decreasing speed is too great in the tail of approximating distribution than the real DCT residues distribution if Laplacian distribution is used to model the DCT residues, and this will cause some mismatches in the tail of approximating model.

在采用DCT残差系数作为FGS增强层编码器的信源时，DCT残差系数的统计特性决定着FGS增强层的码率失真特性，而DCT残差系数的统计特性则是由DCT系数的统计分布特性和相应的量化过程所决定的。

After years of efforts and the needs of users, the company currently has products are mainly 6 ~ 10kV of KYN28A-12 sheathed in metal cabinets home, XGN -12 ring counters Nets, CBW-1-type box-type substation, GGD AC Low Voltage Distribution counters, GCK low-voltage switch cabinet drawers, GBD due to set-type low-voltage switchgear, ZXL§Distribution Cabinet, ZXJ metering box as well as the PZ30, such as power, lighting distribution box, the product also involves the control of industrial automation power distribution cabinet type PLC.

经过多年来的努力和用户的需要，公司目前产品主要有6~10kV的KYN28A-12金属铠装中置柜、XGN□-12环网柜、CBW-1型箱式变电站、GGD低压交流配电柜、GCK低压抽屉式开关柜、GBD低压因定式开关柜、ZXL户内外配电柜、ZXJ计量箱以及PZ30等动力、照明配电箱，产品还涉及工业自动化的控制类PLC配电柜。

The invention discloses a method and device for acquiring environment data collecting in honeycomb traveling carriage localizing system and GPS, A-GPS, the collecting device comprises collecting unit with time lag distribution power which connects with honeycomb traveling carriage receiver and GPS receiver, power time lag distribution pretreating unit, environment data extraction unit and managing unit; the method includes: determining the type of input data, gathered power time lag distribution, power time lag distribution pretreating, environment data extracting and synthesizing.

本发明公开了一种适用于蜂窝移动台定位系统和GPS、A-GPS系统的获取环境数据的装置和方法，该环境数据采集装置包括与蜂窝移动台接收机和GPS接收机相连的功率时延分布采集单元、功率时延分布预处理单元、环境数据提取单元和管理单元；本发明所述环境数据采集方法包括确定输入数据的种类、采集功率时延分布、功率时延分布预处理、环境数据提取和环境数据综合。

Research results show that under AC voltage the voltage distribution of Y-type insulator strings is extremely non-uniform and the voltage distribution curve of Y-type insulator string is similar to that of I-Type suspension insulator string; under DC voltage the voltage distribution of Y-type insulator string is also extremely non-uniform, the voltage undertaken by the insulators at the conductor side of Y-type insulator string is higher than that undertaken by other insulators of the same string, and as a whole the voltage distribution trend is that the voltage undertaken by the insulators at both ends of the Y-type insulator string is higher than the voltage undertaken by the insulators at the middle of the same insulator string.

研究结果表明：在交流电压下，Y型绝缘子串的电压分布极不均匀，其电压分布曲线和交流悬垂I串类似；在直流电压下，Y型绝缘子串的电压分布极不均匀，绝缘子串导线侧绝缘子分担电压高于其它绝缘子，总体上呈现导线侧和杆塔侧两端高、中间低的分布趋势。

The following conclusions are drawn. 1 The orbit parameters that have relatively greater influence on the number and latitudinal distribution of annual occultation events are orbit inclination, orbit height, Right Ascension of Ascending Node and Argument of Perigee in turn. All four parameters have little impact on the longitudinal distribution of annual occultation events. 2 The orbit inclination of Transmitting Satellite and Receiving Satellite impacts both LEO－LEO occultation events number and their latitudinal distribution most. The number of occultation events reaches the maximum as the sum of the two inclination angles nears 180 degrees. The one that far away from 90 degrees of the two inclination angles determines the latitude range of the occultation events. 3 LEO－LEO occultation events number reaches a maximum when the heights of TS and RS are the same, and it reaches the maximum when the heights of TS and RS are 600 km . 4 The RAAN of TS and RS has a great influence on the LEO－LEO occultation number, but has little influence on occultation distribution.

结果指出：1对一年掩星事件数量及其纬度分布影响大的轨道参数依次是轨道倾角、轨道高度、升交点赤经和近地点角距；而这些参数对一年掩星事件的经度分布影响都不大；2发射卫星和接收卫星倾角之间的相互关系对掩星事件数量和纬度分布影响最大，两卫星倾角接近互补时掩星事件最多，两颗LEO卫星中与90°相差较大的倾角决定了LEO－LEO掩星事件的纬度分布范围；3发射卫星和接收卫星处于同一轨道高度时，LEO－LEO掩星事件数取得极大值，发射卫星和接收卫星都采用600 km的轨道高度，一年LEO－LEO掩星事件数最多；4 发射卫星和接收卫星升交点赤经的相互关系对LEO－LEO掩星事件数量影响很大，发射卫星和接收卫星升交点赤经之差为120°或240°时掩星事件数量最多，RAAN对掩星事件纬度和经度分布影响不大；5近地点角距对掩星事件数量和分布影响都不大。

The stress distribution of the semi-circular breakwaters with holes by different quantitative ice value to water level, especially the stress distribution of holes is analyzed. The effect of the stress distribution to the holes and the wall thickness are discussed. At last, the result is compared to the stress distribution by wave

应用ANSYS程序计算了不同水位不同量级冰力作用下开孔半圆型防波堤的应力分布，尤其分析了孔洞周围的应力分布；并且讨论了开孔和壁厚对于应力分布的影响；最后将分析结果与波浪力作用下的应力分布进行了比较。

But when a rectangular continuous data set appears to have a longer tailed than normal distribution or it contains some values that are influential on statistical inference with normal distribution, the multivariate t distribution becomes useful for multiple imputations as an alternative to the multivariate normal distribution.

在多重插补法的基础上，当一个矩形连续数据集看起来有一个比正态分布还长的尾巴，或者是它包含了一些对正态分布的统计推断有影响的数据，多元t分布作为多元正态分布的替代分布，对于多重插补来说变的很有用了。

Thirdly, by con-utilaziont of many methods such as exploitation and geology, dynamic producing process monitoring, water invasion behavior, core analyis and numerical simulation, 10 kinds of reservoir scale remaining oil distribution pattern in the steam huff and puff super heavy crude oil reservoir was put forward. Also, remainling oil distribution in the sand bed scale and sublayer scale were pointed out.Fourthly, Microcosmic displacement experiment was conducted for hot water driving in 100℃and 120℃. and steam drive at 170℃condition. Microcosmic remaining oil distribution characteristics were summarized. Remaining oil microcosmic distribution by steam drive at 170℃is different from that at 100℃, 120℃hot water driving. After the steam drive, there are three types of remaining oil distribute regular pattern, whic is impacted by many affecting factors like pore configuration, wettability and interfacial tension.

分析了砂层组规模和小层规模的纵向和平面剩余油分布规律。4、通过微观驱替实验，研究了100℃和120℃的热水驱及170℃蒸汽驱条件下剩余油的微观分布形态。170℃条件下剩余油微观分布形态同时受孔隙结构、润湿性及界面张力多种因素的影响，主要有三种形式：在油、汽、水三相共存的孔隙中，剩余油分布于汽、水之间，为薄膜状和弯月状；在只有油、汽两相共存的孔隙中，大孔道中主要是蒸汽，剩余油在细小的孔喉和孔隙角隅处以段塞或不规则状态存在；由于高温水蒸汽对原油具有萃取作用，剩余油以一种细小的珠滴状存在于孔隙表面。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。