查询词典 luminous beam

The arch bending on the top of the original main arch ring corresponds to every arch rib and the bottom beam on its landscape orientation. As a result it becomes a down arc frame similar to slab-and-beam floor system. On the arch bending and bottom beam just established, standing pillar, main beam, horizontal rib beam and bridge front-panel would be built subsequently. Both ends of the main beam would then be put off the new hat beam made of reinforced concrete. Now, it becomes an upper slab-and-beam floor system. Two decks will be joined together on the middle of the bridge, which forms the ability of spanning and loading.

在原主拱圈拱肋相应位置处增设拱伏，横向增设底梁，形成一个下层弧形的类似肋梁楼盖的结构；在已浇筑好的拱伏与底梁上，继续现浇立柱、主梁和横向肋梁、桥面板，主梁的两端搁置在桥台处新增加的钢筋混凝土台帽梁上，形成一个上层肋梁楼盖结构，并且上下两层楼盖在桥梁跨中互为渗透结合成一个牢固的整体，共同完成了跨越和承载的能力。

This paper proceeded the flexural experiment respectively of two flexural strengthen beam by CFS, one compared reinforced concrete beam, and proceed sheared experiment research of two U style stirrups of CFS combined compacted sheared strengthen beam, one compared reinforced concrete beam. analyze and compare some working characters such as width of cracks, the deflection and ultimate moment of an unstrengthen compared beam, an initial strengthen beam and a beam strengthened after crack by compacting .

本文分别进行了2根粘贴碳纤维布受弯加固梁和1根钢筋混凝土对照梁的受弯试验研究及2根碳纤维布U形箍+压条受剪加固梁和1根钢筋混凝土对照梁的受剪试验研究，分析对比了对照梁、直接加固梁、压裂卸荷后再加固梁三者的挠度、裂缝、极限荷载等工作性能。

Secondly, a theoretical dual rigid-plastic modal under lateral impact of blunt indenters is firstly developed in order to predict damage pipeline which is fully clamped across a span based on rigid-plastic beam on a perfectly plastic foundation, which is made up of a rigid-plastic sub-beam and a rigid-plastic basic-beam, the rigid-plastic sub-beam is used to predict denting deformation, the rigid-plastic basic-beam is used to predict global deformation, the sub-beam and the basic-beam interact by a perfectly plastic foundation.

为了更好地估计钝头弹体冲击对管道造成损伤，在刚塑性地基梁模型的基础上，首先提出了一种新的理论计算模型一双重刚塑性梁模型，由一子梁和一基梁构成，子梁用来估计弹体撞击造成的局部损伤，基梁用来估计弹体撞击造成的整体弯曲，子梁和基梁通过基础反力相互作用。

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。

Diamagnetic loop is new beam diagnostic technology, it measures electromagnetic parameter-magetic moment that is brought while beam is transforming, by measuring magnetic moment we can calculate beam radius. Diamagnetic loop is non-intrusive diagnostic system, it can diagnose beam radius on line and it can diagnose beam emittance and obliquity cooperating with other technology such as three gradient method and beam bugs.

反磁回路法是国际上近年来发展起来的一种新的束流诊断技术，它是通过测量束流传输过程中产生的电磁场参数对束流的特性——束流半径进行诊断的，是一种非阻挡型的诊断系统，可以在线诊断束流情况，与其它方法相配合还可以得出束流剖面的其它参数，具有结构简单、抗电磁干扰能力强、安装使用方便可靠等特点。

For the structure stress condition, the dead load is born mainly by continuous rigid-frame, and the live load is born by both the arch rib and the main beam, the force separately bora by the arch rib and the main beam is influenced by the whole rigidity of beam and arch, and by areas of flexible hanger rod, the structure perforce is no longer same with the common beam and arch, and the inner force analysis progress is more complex to the common bridge system, especially, the multi-direction stress analysis to the combination area of pier、 arch and beam is very difficult, for such reasons, so it is very necessary and important to have stress performance analysis in the combination area of pier、 arch and beam.

从结构受力情况来看，梁体自重主要由连续刚构承受，活载由拱肋与主梁二者共同承受，各自承受力的大小受梁、拱相互整体刚度、柔性吊杆面积的大小影响，结构性能已不同于一般的拱与梁，结构内力分析的过程较一般桥梁体系较为复杂，特别是墩、拱、梁结合处的多向受力状况的分析难度更大，所以对该桥式结构，墩、拱、梁结合部的结构受力特性进行进一步地理论分析测验研究也就显得十分必要和迫切了。

The main way of the method of beam grid is to simulate the top structure with a equivalent beam grid, and concentrates the scattered bending rigid and tension rigid in slab or box beam into the close equivalent beam grid, and the longitudinal rigid of the real structure is concentrated in longitudinal beam rigid, and the lateral rigid is concentrated in lateral beam rigid.

梁格法的主要思路是将上部结构用一个等效梁格来模拟，将分散在板式或箱梁每一区段内的弯曲刚度和抗扭刚度集中于最邻近的等效梁格内，实际结构的纵向刚度集中于纵向梁格构件内，而横向刚度则集中于横向梁格构件内。

Those ions will perform stable oscillation nearby the beam orbit while their mass is larger than a critical mass. The accumulation of trapped ions nearby the beam orbit, interacting with beam, can cause the tune shift of beam, blowup of beam emittance, increase of local vacuum pressure, and can even lead to the occurrence of beam instability.

这些被俘获的离子在束流轨道附近的积累并和束流的相互作用，会引起束流振荡频率的漂移和展宽、束流发射度的增加、局部真空度的恶化等各种负效应，有时甚至会导致束流不稳定的发生，从而影响储存环的正常工作，在这种情况下采用离子清洗方法将离子清洗掉对保证储存环的长期、稳定的运行是必要的。

Based on the prior art, the optical engine according to the invention has the improvements that, three optical axis steering components are respectively introduced into red, green and blue light illumination systems, and an optical axis lengthening structure is introduced into the green light illumination system, so that optical axes of the red, green and blue light illumination systems, each of which is from an LED resource to the optical axis steering component, are counterclockwise rotated for 90 degrees, parallel with each other, parallel with an optical axis of a projection lens, arranged in a same plane and positioned under the projection lens, luminous faces of three LED luminous chips of the red, green and blue light illumination systems are in a same plane, and the three LED luminous chips can be mounted on a same heat-radiating plate, therefore, the heat-radiating system has a simplified structure, and the optical engine has reduced size.

在背景技术所述的光学引擎的基础上作以下改进，在红、绿、蓝光照明系统中引入三个光轴转向器件和在绿光照明系统中引入光路加长结构，旨使：红、绿、蓝光照明系统各自的从LED光源至光轴转向器件部分的光轴朝逆时针方向转动90°、互相平行、与投影镜头的光轴平行、居同一平面和位于投影镜头的下方，红、绿、蓝光照明系统的三个LED发光芯片的发光面居同一平面，三个LED发光芯片可安装在同一块散热平板上，散热系统的结构简化，所述的光学引擎的尺寸减小。

Luminous intensity: the light source in a given direction within a unit solid angle as the light source luminous flux launched at the direction of the luminous intensity, or light intensity, I used to that unit candela.

发光强度：光源在某一给定方向的单位立体角内发射的光通量称为光源在该方向的发光强度，简称光强，常用I来表示，单位为坎德拉。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？