Based on it, the elastic wave velocity spatial distribution around a cased hole in tectonic stress field is studied by applying the velocity-stress formula of equivalent medium model. 在此基础之上,应用等效介质模型的速度&应力关系式,研究了地应力场中套管井周弹性波速的空间分布规律。
In order to depict spatial concealment effect more effectively, a novel fitting formula was proposed only by signal processing method. 为了更好地描述空间掩盖效应,本文利用信号处理方法,给出了一种新的拟合公式。
Based on the elasticity theory of spatial axial symmetry question, the paper established the stress formula for the carbon fiber clothes strengthening concrete circular section column theoretically. 对影响部分预应力混凝土圆柱的变形性能和变形恢复性能的各种因素做了定量的研究,并经过回归分析提出了各特征点的近似计算公式。
Based on differential geometry and spatial engaging theory, a set of formula of conical surface double enveloping worm gearing had been derived and its figures, position and distribution had been depicted by graphs. 以微分几何与空间啮合理论为基础,推导了锥面二次包络圆柱蜗杆传动两次包络过程中的啮合方程和主要啮合性能指标方程,以图直观的表示出其形状、位置和分布状况。
The main ways to acquire the spatial state parameters of the texture plane of orientation core are the restoration measure, drawing solution and formula computation for the present. 目前获取定向岩心结构面空间状态参数的方法主要有复位实测法、作图求解法和公式计算法。
Based on the concept of load lateral distribution coefficient, the expression used to calculate the prestressing loss caused by batched tension process applied in vertical plane, is extended to a simplified spatial formula which has general applicability. 结合荷载横向分布系数概念,将竖平面内的预应力钢筋分批张拉损失计算式进行推广,推导了具有普遍适用性的分批张拉损失空间简化计算公式。
The spatial force model of the drive is presented. Forces between planet and worm or stator are analyzed. The formula of the output torque for the drive is given. 研究了机电集成超环面传动的驱动机理,建立了该传动的空间力学模型,分析了行星轮在环面蜗杆和环面定子处的受力情况,推导出了行星架输出力矩的计算公式。
The loss assessment of the disaster is made through a spatial information gridding model developed herein, and then the calculation formula of the disaster loss rate is given as well; 文中通过建立空间信息格网模型进行洪涝灾害损失评估,并对洪灾损失率给出计算公式,在2003年淮河流域洪水遥感监测的基础上,对蒙洼蓄洪区进行了洪涝灾害损失评估。
By using the simplified BURSA-WOLF spatial model formula for GPS coordinate transform in Quzhou district, the paper compared every model's influences on the transform accuracy, and educed some conclusions and advices that would benefit engineering application. 本文通过在衢州地区利用简化的BURSA-WOLF空间模型公式进行GPS坐标转换,比较各个模型对转换精度的影响,得出一些有利于工程应用的结论和建议。
Finally, by using spatial truss model with variable angle, a formula for ultimate torsional strength is proposed in which test results are taken into account. 本文采用变角空间桁架模型,并结合已有的试验成果,提出了可供设计参考的极限承载力计算公式。
In this paper, according to Morishita's spatial clustering degree, defined formula of temporal clustering degree and calculated time scanning curves of spatial clustering degree J s and temporal clustering degree J t before some large earthquakes. 从Morishita空间丛集度出发,定义出其时间丛集度的表达式,并计算了几次大震前空间丛集度Js和时间丛集度Jt的时间扫描曲线。
All above is very meaningful to understand and use the generalized spatial resolution formula. 这对于更好地理解和运用广义空间分辨力计算公式具有重要的意义。
The Collins formula in spatial frequency domain is generalized into axially nonsymmetrical optical system in terms of tensor analysis method. Based on this formula, the tensor ABCD law in spatial frequency domain is derived. 运用张量分析方法把轴对称系统中的空间频率域的柯林斯公式推广到一般的非轴对称光学系统,并推导了在空间频率域中适用于非轴对称光学系统的张量ABCD定律。
Spatial correlation of geophysical-geochemical anomaly of different elements is studied by the spatial correlation formula. 给出计算空间相关性的公式,并研究了不同元素化探异常的空间相关性。
Based on the theory of spatial mechanism, the mechanism analysis of circle trough double universal joint is conducted, the kinetic law, the law of load of the intermediate shaft and the efficiency formula of this universal joint as well are deduced. 根据空间机构的理论对环槽式万向联轴器进行机构分析,推导出基本运动规律、中间轴的载荷规律以及联轴器的效率公式。
A qualitative analysis of the effects of spatial resolutions on the uncertainty of the derived slope in loess hill and gully area information is conducted with the quantitative mathematical formula established. 定性地分析了在黄土丘陵沟壑区DEM空间分辨率对所提取的坡度信息的不确定性影响,并建立了定量的计算公式。
Through modifying the formula for calculating shaking moment of single-loop spatial linkages, this paper presents the formula for shaking moment calculation of general multiple-loop spatial linkages. 通过对单环空间机构振动力矩的计算公式进行修正,提出了一般多环空间机构振动力矩的计算公式。
A fractal model is established to simulate the spatial structure of concrete slurry, and a formula that describes the relationship among the fractal dimension D, the porosity P and the pore distribution is deduced. 建立了分形模型来模拟水泥浆体的空间结构,在此基础上推导出了孔体积分形维数D和孔隙率P、孔径分布的关系式;
Based on the effect of sensor amplitude and phase errors on one-dimension noise sub-space algorithm, the spatial spectrum formula under effect of array amplitude and phase errors was deduced in terms of correlated parameters. 针对阵元幅相误差对一维噪声子空间算法测向性能的影响,先根据相关参数推导出阵元幅相误差影响下的空间谱计算公式,再以均匀线阵为例进行仿真。
The spatial distribution formula of the spectral scattering radiance of anon-lambertian target in complex background is derived. 导出了非朗伯面目标对复杂天地背景光谱辐射的散射亮度空间分布公式。
Firstly, based on the General Bending Theory, take the rotation center as the simplified center, the governing equation of the spatial buckling is derived, and the conversion of the critical force unification formula and the corresponding rotation center coordinates formula is carried on. 首先,基于新理论,以转动中心为简化中心,导出了薄壁梁柱空间屈曲的控制方程,并反演出临界力统一公式及相应的转动中心坐标公式。
Considering the spatial effects, the modified calculation formula was also presented. 考虑空间效应,给出了修正的计算公式。
Based on Fourier Optics Spatial spectrum analysis principle and diffraction theory a method of fine wire diameter measurement with laser diffraction is described, the calculation formula between fine wire diffraction intensity and its diameter within limited monochromatic parallel light field is identified. 本文以傅立叶光学空间频谱分析原理为基础,根据衍射理论,阐述了激光衍射测量微细线直径的方法,确定了有限尺寸的单色平行照明光场内细线衍射光强与细线直径之间的关系计算公式。
In this paper, spatial fields in a coherent optics system are numerically simulated by use of scalar diffraction theory and Collins 'formula, respectively. 本文分别给出用标量衍射理论和柯林斯公式模拟相干光学系统空间光场分布的实例,并对激光光场的空间追踪方法进行总结,以便将该方法应用于谐振腔横模场的研究中。
After the topology structure of a five-axis NC machine is equivalent to a multi-body system, a model of spatial geometric error of the machine is created based on product-of-exponential formula ( POE formula). 本学位论文将五轴机床拓扑结构等效成多体系统,建立了基于指数积公式的五轴机床空间几何误差模型。
This result in a spatial formula traffic mode such as underpass tunnel, and the shed tunnel as a new type of tunnel structure was applied. 由此产生了下穿隧道这样的立体交通,而棚洞作为一种新型的城市隧道结构形式被应用。
According to the spatial correlation among pixels and the foreground/ background color of the similarity in the same image to define graph-cuts energy function formula. 利用像素点间的空间相关性和同一图像中前景/背景颜色的自相近性定义图切割能量函数。
The spatial force model of the drive is presented. The formula of the output torque of the torous stator is deduced. 研究了定子旋转式机电集成超环面传动的驱动机理,建立了该传动的空间力学模型,推导出了环面定子的输出力矩公式。