查询词典 density function

Field data of pedestrian flow was collected in Chinese comprehensive passenger transport terminal—Xizhimen underground station using video recording, and then selected and analyzed by statistic analysis software SPSS. Parameters relation models for pedestrian flow on different terminal facilities were established based on data statistics. The results show that the pedestrian flow-density relation model is quadratic equation in corridor; the flow-space relation model is quadratic equation when space is below a certain value and is logarithmic equation when space is above the value; the speed-density relation model is linear equation. The models on stairs show the similar characteristics, but the eigenvalue is different.

对国内综合交通客运枢纽——北京西直门地铁站行人流数据进行视频采集，采用统计分析软件SPSS对行人流参数数据进行筛选及拟合分析，建立了不同设施的行人流参数关系曲线及函数模型，研究结果表明，水平通道处行人流量与密度呈二次函数关系、流量与空间在某一临界点两侧分别呈二次函数及对数函数关系、速度与密度呈线性关系，楼梯处与之相似但特征点数值存在差异。

The relationships of the loop length, stitch density and thickness of fabrics to yarn linear density were analyzed with the experiment data, and the fiber volume fraction of glass fiber plain knitted fabrics was estimated theoretically.

采用改变纱线根数的方法，利用横机编织了多种不同纱线线密度的玻璃纤维纬平针织物，并改变编织的弯纱深度，得到3种弯纱系列的试验用布20块。

Some of the contrast－polarity quadrochromatic in high density, to increase the level of the relatively small density differential is large, and more high low profile levels and low relief, such as surface relief of color film, production should contrive such images of light and shade of the main level of coordination, you can get a better copy reproduce the effect.

一些中高密度反差的原稿，中调层次较少，密度级差较大，而高低调层次较多且平缓，如逆光拍摄的彩色片，制作时应想办法使这类图像主体调的层次明暗协调，即可取得较好的复制再现效果。

In these areas is not allowed to carry out high-density building, because only for green building and ecological development of the region is the most effective way, and in here is that there will be low-density residential and other types of project?

在这些领域是不允许进行高密度的建设，因为只有对绿色建筑和生态区域发展的最有效方法是，在这里将有低密度住宅和其他类型的项目？

However, at home and abroad in accordance with the professional standards of construction planning, the scope of the existing low-rise low-density residential, there are low-rise high-density residential.

然而，在国内和国外按照专业标准的建设规划的范围，现有的低层低密度住宅，有低层高密度住宅。

In this paper, the reasons leading to poor development effects of Chaoyanggou low-permeability oilfield are analyzed, the relational expressions between recovery efficiency and well spacing density, considering the start-up pressure, are given. In the paper, the water flooding control degree, lower limit of reservoir permeability, effectively driving factor, and other parameters are studied, and their influence on the well spacing density is presented.

中文摘要：摘要：本文分析了大庆朝阳沟低渗透油田开发效果差的主要原因，给出了考虑启动压力条件下，采收率与井网密度的关系式；研究了水驱控制程度、油藏渗透率下限、有效驱动系数等参数对井网密度的影响；确定了朝阳沟油田合理井网密度界限。

The effect of pulp volume on the wear rate in lower pulp density is greater than that in higher pulp density.

矿浆浓度较低时，矿浆体积的变化对钢球磨损率的影响比矿浆浓度较高时的影响要显著。

By the lower spherical density, we calculate the packing measure of the self-similar sets. In this thesis, we get a relation between the packing measure and the lower spherical density.

对于填充测度的计算，本文从下球密度入手，在下球密度与填充测度之间建立了一个等式。

Compared to SOC density in the dry land, SOC density in paddy soils was 13 percentages higher with a lower variation coefficient between different regions.

不同用地方式下，水田耕层有机碳密度比旱地的平均高13个百分点，但水田有机碳密度的区域变异显著低于旱地。

Low-lying electronic states of the lutetium dimer (Lu2) were studied based on density functional theory using ten different density functionals together with three different relativistic effective core pseudopotentials. Relative state energies, equilibrium bond lengths, vibrational frequencies, and ground-state dissociation energies were evaluated.

用密度泛函理论方法研究了镥二聚体(Lu2)低能量电子态的性质，计算了电子态相对能量、平衡键长、振动频率以及基态解离能，考察了密度泛函性质、相对论有效势种类以及Hartree-Fock交换作用大小对计算结果的影响。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。