查询词典 asymptotic direction

The proposed robust road main direction detection method consists of initial main direction extraction based on the direction histogram of structure tensor and precise direction detection on vectorized edge image. Experiment results demonstrate its robustness and precise. The proposed Gibbs-sampling-based method models road network with marked point process and can effectively extract road network with initial configuration. However it is slow and still can not deal with single and isolated road segment. These problems can be solved by the real-time method. And experiments verify that the real-time method is fast during extracting road segment.

提出的稳健道路局部主方向提取算法以结构张量为基础，通过方向直方图确定大致主方向，并通过矢量化边缘进一步计算准确的方向角，实验结果表明具有良好的稳健性和准确性；提出的基于Gibbs采样的交互式道路网提取方法采用标记点过程对道路网进行建模，在给出初始构造项的情况下，能有效的提取出指定道路网；提出的实时交互式道路段提取算法弥补了上一方法无法处理单一直线道路段和计算过程慢的不足，是上一方法的有益补充，实验结果表明算法能快速提取道路段。

The pick-up gear is rotated when the motor is rotated in a first direction, the feed gear is rotated when the motor is rotated in a second direction, and the discharge gear is rotated constantly in one direction regardless of the rotation direction of the motor.

当电动机沿第一方向旋转时，拾取齿轮被转动，当电动机沿第二方向旋转时，送纸齿轮被转动，以及无论所述电动机的旋转方向为何，排纸齿轮恒定地沿一个方向旋转。

This invention relates to a method and device for generating cold atomic beam. Said method includes heating hot atom source in vacuum chamber to form atomic saturated vapor pressure atmosphere, cooling hot atom by three-D MOT to below 200uk and trapped to form cold atomic cloud, by the quarter wave plate reflection mirror in MOT the laser radiation pressure being unbalanced to make cold atom emitting along said direction, four tape arranged straight line set with contrary current direction is set in atom beam emission direction, which makes the atom emitted to forward to obtain cold atom beam with low speed, large flux and small transverse speed, laser beam vertical with atom beam set in the direction of cold atom emitting for atom beam state preparation to realize state concordant emitted cold atom beam.

本发明涉及一种冷原子束产生方法和装置，该方法包括在抽真空的真空室内，加热热原子源，在真空室中形成相应的原子饱和蒸汽压气氛；采用三维MOT对热原子进行冷却，冷却到200μk以下，并被捕获形成冷原子云团；通过三维MOT中开小孔的四分之一波片反射镜，而使得在该方向上激光辐射压力不平衡，使冷原子沿此方向出射；在冷原子束出射方向上，还置有载有彼此电流方向相反的四根成锥形排列的直导线，从而原子出射时将在磁场的作用下，不会沿横向膨胀而向前射出；便得到了出射速度低的、通量较大的、横向速度非常小的连续冷原子束；同时在冷原子束的出射方向上，设置有与原子束垂直的激光束，用于原子束的态制备，实现态一致的出射冷原子束。

Results Well-resolved, reproducible 2-DE profiles of human colon carcinoma tissues and paired normal tumor-adjacent colon tissues were obtained. For colon carcinoma tissues, a total of (980±28) spots were detected; for paired normal tumor-adjacent colon tissues,(860±45) spots were detected. For normal tumor- adjacent colon tissues, the average deviation of spot position was (10.487±0.11) mm in IEF direction and (0.944±0.12) mm in SDS-PGE direction; for colon carcinoma tissues the average deviation of spot position was (0.654±0.11) mm in IEF direction and (1.20±0.22) mm in SDS-PGE direction. Number of differentially expressed proteins was 72.00±12.34 between colon carcinoma and paired normal tumor-adjacent colon tissues.

结果 建立了结肠癌及正常肠组织的双向凝胶电泳图谱，其中癌旁正常结肠组织和结肠癌组织电泳图谱中平均蛋白质点数分别为860±45和980±28；癌旁正常结肠组织和结肠癌组在IEF方向上的平均偏差分别为(0.487±0.11)mm和(0.654±11)mm，在SDS-PAGE方向上的平均偏差分别为(0.944±0.12)mm和(1.20±0.22)mm，结肠癌与癌旁正常结肠组织的差异表达蛋白质点数为72.00±12.34。

Traditionally we continue moving forward with the paper in line with the direction of most of the fibers'packing is called straight grain direction; and a direction perpendicular to the horizontal paper called the grain direction.

习惯上我们把与造纸前进方向一致的大部分纤维排列的方向叫做直丝绺方向；与其垂直的一方向叫做纸张的横丝绺方向。

There is also a belief, from paper, paper direct comparison of the grain direction, easy-to-stiffness and transportation; blowing and horizontal grain direction of the paper is not enough stiffness to the two ends of the easy-to-source or curls, purging and transportation, so you should move the paper direction and straight grain feeding direction parallel to cards and membership cards.

还有一种说法认为，从输纸来看，纸张直丝绺方向比较硬挺，便于吹松和输送；而横丝绺方向纸张挺度不够，两头易于向下或者向上卷曲，影响吹松与输送，所以应将纸张直丝绺方向与输纸方向平行来制卡和会员卡制作。

Self-fluxing Fe-Cr-Ni-B-Si alloy prowders are laser clad on medium carbon steel substrate of dimensions 80×35×10mm〓. The investigation results of this clad layer are: micro-defects, micro-cavity and occluded forin substance, are the micro-cracks and crack resourses in clad layer; crack of coating propagates along the boundary of two kinds of eutectic sutructure; The included angle θ between the cracking direction and laser scanning direction in multitrack overlapping clad is smaller than that in one-track clad because of crack propagating along crystalline growth direction and crystalline direction in overlapping zone being different from it in one-track clad.

在调质态的45〓钢表面，采用预置粉末法进行FeCrNiBSi合金的多道搭接激光熔覆，对其熔覆层进行分析表明：多道搭接激光熔覆层裂纹扩展方向与激光扫描方向间的夹角θ与单道熔覆时相比明显变小，前者θ0°，后者θ角基本都为90°，这主要是因为多道搭接时，搭接区结晶方向发生了变化以及裂纹沿结晶方向扩展所致；激光熔覆层裂纹大多是以覆层与基材交界面的孔洞、熔覆层内不同方向共晶团间的显微缩孔、夹杂物的边界等三种显微缺陷作为裂纹源，并沿低熔点物相形成元素偏析造成弱化膜的共晶团界面扩展延伸。

For chirp radiator direction-finding using an ARM interferometer seeker, the cause of the direction-finding error using traditional direction angle estimation is studied, and the relationship between the direction-finding error and the integration time is analyzed, especially for the boundary condition that the integration time of phase discriminators gets the maximum value.

针对ARM干涉仪导引头对chirp信号辐射源的测角问题，从几何关系与信号分析两方面揭示了传统方向角估计方法产生测角误差的机理，分析了干涉仪测角误差随鉴相器积分时间变化的关系，重点对积分时间最长这一极端情况开展研究。

Due to the rotation of the field lines near the source, the asymptotic limit of a field line is not exactly in the radially outward direction and as a consequence, the image in the far field is slightly shifted.

正是由于能量流线的涡旋结构，其在远场的能量流线的渐进线并不是由点源向外沿径向发出。因此由远场观测，点源的成像产生了微小偏移。

To correct direction, first only the air hammer among located in the position corresponding to the correcting direction is actuated and only the ground in the correcting direction is drilled by a predetermined amount.

在方向修正时先仅使其位置与修正方向相对应的气锤工作，仅对该修正方向的地基按规定量进行挖掘。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。