查询词典 flow

In the area of calculation method of complex flow field in turbomachinery, this dissertation studies grid generation method for coolant jet flow field and domain decomposition approach for complex flow field.

在叶轮机械复杂流场的求解方面，本文对冷气喷射流场的网格构造及复杂流场分区算法进行了研究。

Based on the BISQ model, we studied the elastic wave speed in two-phase porous isotropic media and its relation with Biot-flow and squirt-flow. The Green function is obtained for a point load in the two-phase porous isotropic media using the decomposition of the field potencial and the properties of Delta function. The expression and effects of squirt-flow in BISQ-Green function are discussed.

以BISQ模型的波传播方程为基础，研究了弹性波在孔隙各向同性介质中的传播速度及与流体的Biot流动和喷射流动力学机制的关系，进一步利用场势分解和δ函数的性质，给出了同时受Biot流动和喷射流动两种动力学机制作用下，两相介质波场位移在集中力作用下的Green函数，并讨论了喷射流动在Green函数中的表现形式和作用。

Objective To study the power spectrum density of blood flow ultrasonic Doppler signal using wavelet analysis. Method Doppler signal of blood flow in human common carotid artery was studied with wavelet scalogram analysis, an affine smoothing Wigner Ville transform with a constant "Q" character. Result Wavelet scalogram of blood flow ultrasonic signal had a higher distinguishability than STFT spectrogram in the low frequency portion, but had poorer decussation terms than spectrogram.

对于平稳信号的处理工具仍然是Fourier变换，但是，在实际应用中的绝大多数信号是非平稳的，现在看来处理非平稳信号的主要工具将是小波变换，这主要是因为传统的Fourier变换分析信号时，时间和频率分辨率精度是固定不变的，而利用小波变换分析信号，在信号高频段时间分辨率精度也较高，在信号低频段频率分辨率精度较高，这很符合非平稳信号的特点。

According to the users' requirement and visualization target of ocean information extraction, a visualization modeling system for ocean remote sensing information extraction is designed which includes its software structure, users' requirement use-case structure, class structure and flow-chart representation using the unified modeling language and object-oriented analysis method. The related flow definer and flow attemperment are designed and implemented.

根据海洋遥感信息提取可视化建模应用需求，以用户可视化模型建立及流程设计实现为目标，采用统一建模语言UML面向对象分析方法，设计海洋遥感信息提取可视化建模系统软件结构、用户需求用例结构、类结构及流程图表示法，同时完成流程定义器、流程调度的设计和实现。

This article analyzed eddy properties of fluids and optical fiber sensors of modulation uminous intensity, Utilize the micro-bending loss property and the result of interfering among many mould optic fibre modes of the optic fibers, have designed a kind of new-type flow of the flow and densimeter of measuring the rate of flow and density at the same time.

本文主要分析了流体的涡漩运动特性，结合强度调制光纤的传感原理，和光纤的微弯损耗特性和多模光纤模式间干涉的结果，设计了一种同时测量流体的流量和密度的新型流量、密度计。

To accelerate the widespread of Synchronous Chip Seal and improve the operation quality of Synchronous Chipsealer, key techniques which influence the operation quality is studied detailedly, including the control of distributing quality, the dynamics characteristics of hydraulic system and the spray characteristics of asphalt nozzle of Synchronous Chipsealer.1 The factors which influence Synchronous Chip Seal quality are studied. Fiducial probability of simultaneous distribution density is advised to be used in evaluating the distribution bias and standard deviation of asphalt and aggregates simultaneously, which is more advanced than the single index evaluation method used before.2 The volume efficiency formula of asphalt pump is revised after analyzing the data of volume efficiency with mathematical statistics, which is helpful to match the asphalt spray system and control the flow out of asphalt pump accurately. With equation deduction and experiment, dynamic of hydraulic system used in Synchronous Chipsealer is studied, which lay the theory foundation on improving the stability and efficiency from design and controlling.4 Simulation on hydraulic system used in Synchronous Chipsealer is done with AMESim; the results indicate that multi-circle parallel connected hydraulic system with constant pressure power is better than that with load-sensing pressure power at present, because the latter will oscillate when the multi circles work at the same time. This conclusion has been proved during the debug of Synchronous Chipsealer.5 Asphalt nozzle characteristics, such as flat jet shape, flow distribution, are studied with experiment, the results indicate that cross quality of asphalt distributing is not increased linearly follow the increase of fan overlap level, the best point usually exists between two whole overlap level, asphalt distributing quality is better than±4% at the 2.5 overlap level, meets the superior specified in standard; The distribution quality of Synchronous Chipsealer can be increased by spray asphalt of different flow rang with nozzle of different diameter

为了加快同步碎石封层技术的推广，提高同步碎石封层设备的作业质量，本文对同步碎石封层设备作业质量的影响因素与控制方法、液压系统的动力学特性和沥青喷嘴的喷洒特性等关键技术进行了深入细致的研究：1研究了影响同步碎石封层作业质量的因素，提出了采用联合密度分布置信概率对同步碎石封层中沥青洒布量和碎石撒布量的系统偏差和标准差指标进行综合评价的方法，克服了传统评价方法只能对单一指标进行评价的缺陷；2采用数理统计的方法，研究了沥青泵的容积效率特性，修正了沥青泵容积效率公式，为沥青喷洒系统的匹配和沥青泵出口流量的精确控制提供了依据；采用数理方程推导与试验相结合的方法，研究了同步碎石封层设备液压系统的动力学特性，为从设计和控制的角度提高同步碎石封层设备液压系统的稳定性和效率奠定了理论基础；3运用AMESim软件对采用负载敏感控制和恒压控制的两种同步碎石封层设备液压系统进行仿真，结果表明：负载敏感控制的并联液压系统在多回路同时工作时，由于液压泵排量控制参考压力不稳定，容易引发液压系统振荡，恒压控制的并联液压系统是目前技术条件下比较理想的同步碎石封层设备工作装置驱动方案；该结论亦通过同步碎石封层设备装机试验得到了验证。4采用试验的方法对沥青喷嘴的喷洒特性进行了研究，结果表明：沥青洒布的横向精度并不是随着喷洒扇面重叠度的增加线性增加，其最高点通常出现在二个重叠度之间的"半重叠位置"，"2.5重叠"洒布时，沥青的横向洒布精度≤±4%，可以达到国家相关标准中的优级标准；同步碎石封层设备还可以根据不同洒布量情况下的流量需求，采用不同通径的喷嘴进行喷洒，提高沥青洒布精度。

But above research were all based on network whose parameters and topology structure were determinate. Network system in practical circumstance often presents randomicity because of influence of some factors. So it often causes some errors when apply traditional network flow theory to practical problems. It is significant for improving network flow theory's practicability to optimize network flow in stochastic circumstance. This question has drawn attention.

但以上研究都是在网络参数和拓扑结构固定的网络上进行的优化，而实际环境中的网络系统受多种因素影响往往会表现出随机性，所以传统网络流理论在具体应用时与实际情况会有一定的偏差，如果能在随机环境下对网络流进行优化，对提高网络流理论的实用性和针对性均有重要意义，这个问题已越来越引起关注。

Someone is tossing petals in a stream Somewhere someone is standing at the foothills of their dreams Someone got a paintbrush, is painting over doubts Someone opened up his eyes and saw the sun coming out Someone was captive and found the courage to get off From a boulder in the well, somewhere the rain has stopped Someone is finding the place where they belong Everyday is summer somewhere in the world And the summer boys are headed for the falls to kiss the girls With their impatient hands groping honey breasts and curls They are filled with desire And high in the hills there's a baby being born As forgiveness and peace wash over bruises and sores People bridging the distance over nettles and thorns Everyone aboard on the merry-go-round Some things will rise up so that others come down If the devil don't dance, heaven won't shine It's a mighty thick haze and it's a pretty thin line If the facuet is tightened up the love won't flow If the love isn't bright enough the corn won't grow If the night isn't dark enough the moon won't glow A rich man counting money, a tired man counting sheep While the safe man counts his blessings, the hungry man has beans There's a million people praying, raising up their eyes To what turns out to be the same god, the same sky We are slightly scared of death, a little bit afraid So we celebrate everything we can think to celebrate We shall sing out loud to keep the hounds away Everyone aboard on the merry-go-round Some things will rise up so that others come down If the devil don't dance, heaven won't shine It's a mighty thick haze and it's a pretty thin line If the facuet is tightened up the love won't flow If the love isn't bright enough the corn won't grow If the night isn't dark enough the moon won't glow Prisons will crumble and governments will fall It's the order of freedom to be preceded by walls Cause the truth would be worthless if no one ever lied So we carry our shame in the interest of pride And we have all these questions to make us go roam And we've got all this distance to make us come home As the sun burns, a child learns, the tide churns, the world turns Everyone aboard on the merry-go-round Some things will rise up so that others come down If the devil don't dance, heaven won't shine It's a mighty thick haze and it's a pretty thin line If the facuet is tightened up the love won't flow If the love isn't bright enough the corn won't grow If the night isn't dark enough the moon won't glow

有人扔花瓣在流某处有人站在山脚下的他们的梦想有人了画笔，画的是怀疑有人打开了他的眼睛，看到太阳出来有人圈养和发现的勇气下车从巨石的很好，某处雨已停止有人的地方发现它们属于日常是夏天在世界一些地方和夏季男孩前往瀑布亲吻女孩不耐烦的手与他们摸索蜂蜜乳房和卷发他们是充满希望和高的山上有一个婴儿出生作为宽恕与和平洗了伤痕和疮人民缩小距离，荨麻和荆棘 93号航班上的旋转木马有些东西会起来，使其他人下降如果没有魔鬼舞蹈，天上不会服务这是一个强大的浓雾，这是一个非常薄线如果是加紧facuet的爱将不会流如果爱情是没有足够明亮的玉米不会增长如果是没有黑暗的夜晚足够月球不会发光富翁数钱，一个疲惫的人计数羊虽然安全的人把他的祝福，在饥饿的人有豆有100万人祈祷，提高了他们的眼睛什么结果是相同的上帝，同样的天空我们稍微害怕死亡，有点害怕因此，我们庆祝所能想庆祝我们将唱大声保持距离猎犬 93号航班上的旋转木马有些东西会起来，使其他人下降如果没有魔鬼舞蹈，天上不会服务这是一个强大的浓雾，这是一个非常薄线如果是加紧facuet的爱将不会流如果爱情是没有足够明亮的玉米不会增长如果是没有黑暗的夜晚足够月球不会发光监狱将崩溃和政府将下降有秩序的自由之前，墙壁原因真相将是毫无价值的，如果没有人说谎因此，我们在履行我们的耻辱的利益骄傲和我们所有这些问题让我们去漫游我们还有这一切的距离，使我们回家太阳灼伤，儿童学习，潮流，提供世界轮流 93号航班上的旋转木马有些东西会起来，使其他人下降如果没有魔鬼舞蹈，天上不会服务这是一个强大的浓雾，这是一个非常薄线如果是加紧facuet的爱将不会流如果爱情是没有足够明亮的玉米不会增长如果是没有黑暗的夜晚足够月球不会发光

Then the flow coefficient could be calculated. Differential pressure was measured with varied air flow regulated by the valve. Based on the measured data, the relationship curve of the differential pressure and air flow was drawn. It could not be done in the former test platform.

用阀门调节改变流量时，测量出各种不同流量工况下的压差，根据测量数据可以求出流量与压差关系，绘制出压差与流量的关系曲线，此结果在原有的实验台是不能实现的。

The individual thinks, have two individual ways: The first, the comparison that you do inside course of study is professional, come the person of your website, be professional level for the most part, dilettante and general won't come, although your website flow is not large,investment business thinks, but spend this money to remain worthiness; the 2nd, your website flow is high, for instance sina, a lot of people are willing to cast it, although it looks more miscellaneous in content, but flow is high, be willing with respect to somebody.

个人认为，有两个人途径：第一，你在业内做的比较专业，来你的网站的人，大部分是专业级别的，外行一般不会来，投资商认为即使你的网站流量不大，但花这笔钱仍然是值得的；第二、你的网站流量高，就比如新浪，很多人愿意投它，尽管它在内容看起来比较杂，但流量高，就有人愿意。

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。

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。