查询词典 spherical bessel function

In summary, we used the following tools during this study: 183 degree fish-eye lens, the rotation tripod which takes the lens as the center of rotation and the self-developed software which can transform the fish eye image to the spherical panorama images. The whole spherical panorama images can then be created seamlessly and conveniently for the real estate usage on the Internet and some case studies are shown in this thesis.

总而言之，使用183度鱼眼广角镜头、以镜头为旋转中心的定位云台和将广角影像转换成球形全景影像的制作软体，就可以方便地将某空间各角度的影像撷取至球形全景影像，完整的制作过程可以变得相当简易及平顺，并且基於本研究所制作的房地产实例也证实了本研究的实用性。

The study is includes: some images having some repeated area is projected on the spherical surface, and the adjacency pixels is matched, the seam line is clear, and get the background image from the panoramic spherical image according to the relation table based on view angle.

该方法研究了利用多幅具有重叠边界的客观图像通过球面投影、相邻图像像素匹配、消除相邻图像拼接处亮度差，进行无缝拼接获得全景图，以及在仿真过程中通过对应关系表得到正确背景图像的方法。

TEM images showed that LaF3, PrF3, NdF3 and SmF3 nanoparticles were spherical or spherical-like with mean diameter of about 35~39 nm.

结果表明，稀土氟化物纳米粒子具有球形或类球形的形貌，平均粒径为35~39nm。

More than 85% of initial VEGF contents were eat rapped into The VEGF nanoparticles. The result of election micrograph and The size distribution showed that the VEGF nanoparticles acre small spherical or similar spherical vesicles. The mean, diameter of VEGF nanoparticles was 90 nm with the range of 50~150nm, and the drug loading was 42%. The redipersibility of freeze drying powder was very good.

结果：制备了纳米粒胶体溶液及其冻干品：电子透射显微镜下观察纳米粒形态，外形为粒径比较均匀的球状或近球状的纳米粒，平均粒径为90nm，粒径范围为50~150nm；包封率大于85%，载药量约为42%，冻干品的再分散性良好。

If you are using "knife-edge", I presume that you are checking the flat against an auxilary spherical mirror then how good is your auxilary spherical mirror is ?

如果用刀口法，我推测你是通过一个辅助球面对平面进行检测的，但你的辅助球面精度是怎样的呢？

The off-axis reflection system composed of four aspheric mirrors was designed, but the system structure was not so simple and the performance can also be improved, besides, manufacture and test for large aspheric mirrors are difficult; and then the spherical Fresnel mirror which is easier to be manufactured and tested was used to replace the aspheric mirror, the spherical Fresnel mirror has low cost of replication, but this design also can\'t be used in projection lens because it was only feasible in narrow wavebands; Furthermore, the design making use of catadioptric projection lens was accomplished, this design is greatly applied in rear projector because it has merits of both refraction and reflection. But it had difficulties in color aberration correction and had complex structure.

设计了四片非球面组成的离轴式反射系统，然而，仅采用非球面设计系统结构不够精简，性能也有待进一步提高，且非球面面形较大时加工和检测都存在一定的困难；继而提出了用球面Fresnel反射镜代替非球面的设计方法，虽然Fresnel反射镜加工和检测更为简单，且复制成本低，但对波长具有选择性；进而，应用折反系统结合的方式设计了离轴式投影镜头，该方法因兼具折射和反射的优点，在大屏幕超薄背投系统的设计中广为应用，缺点是会产生难以校正的色差，且结构复杂。

Author has described the existing problems in process of design,fabrication and installation for 5 000 m3 PVC spherical tank;discussed the problems and its solution for analysis design;design change for spherical shell sector plate dimension ;weld gap exceeding the standard requirement etc.

叙述了5 000 m3氯乙烯球罐在设计、制造和安装过程中出现的问题；论述了关于球罐分析设计、球壳板尺寸设计变更、焊缝间隙超标等问题的原因和解决办法；针对球壳板制造和组装过程中出现的纵、环缝间隙问题，提出了调整安装形式的改进措施。

With the theoretical model of spherical grain dynamics of sparse two-phase flow in single dimension, computing formulas of velocity′s attenuation and scattering distance were built for explosive residue grains in horizontal. Then, a simplified theoretical model on distribution of explosive residue was put forward on the basis of a spherical space with radius equalling to maximum horizontal scattering distance of explosive residue grains with certain diameter.

为了对残留物颗粒的飞散运动及分布规律进行理论分析，利用球形颗粒一维稀疏二相流动力学模型，研究得到炸药残留物颗粒的速度衰减及水平飞散距离计算公式；在此基础上，建立了以某粒径残留物颗粒水平运动极限距离为半径的炸药残留物颗粒球面空间分布简化理论模型。

There is not an effective method for measurement and assessment of large caliber spherical surface in the realm of spherical surface inspection.

在球面检测中，对大口径球面的测量和评价缺乏有效的手段。

Spherical container design,"in" and trigonometry for the spherical surface ...

球形容器设计》在《等三角学用于球面上。。。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。