查询词典 a beam of light

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。

Part 2. Measurement of macular light sensitivity and FM 100-hue test in normal prese- nium and geratic people. The macular light sensitivity 、macular foveal light sensitivi- ty in 64 (82 eyes) and hue discrimination in 75 (100 eyes) normal presenium and geratic people were examined with macular threshold (white、red、blue and green color light) program of the Humphreh Field Analyzer and FM 100-hue test respectivity. The re- sults showed that the light sensitivity in four color light threshold was all declined with age. The mean error score square of each spectral region and whole spectral was increased with age, the loss of light sensitivity and hue discrmination was a linear correlated with age. The light sensitivity of the different field was compared, except blue color light threshold, the light sensitivity was decreased with the increasing of the eccentricity, white and red color light threshold in the inferior field showed lower sensitivity than that in the superior field.

二、老年前期及老年期正常人的黄斑阈值及FM100-色调试验检测采用Humphrey视野分析仪黄斑阈值程序和FM100-色调试验仪分别对82例（82眼）和75例（100眼）老年前期及老年期正常人进行了黄斑光敏度、黄斑中心凹光敏度及色调分辨力的测定，结果显示四种色光阈值的光敏度均随年龄增加而降低，FM100-色调试验各个色区及全色区错误记分方根随年龄增加而增高，光敏度及色调分辨力的降低与年龄呈线性相关；不同视野的光敏度比较，除蓝色光阈值外，光敏度均随视野偏心度的增加而减少，视野的上半部光敏度较下半部低；视野的鼻侧与颞侧及各象限的光敏度无显著差异。

In one embodiment of the present invention, the optical fingerprint sensor includes:(1) a light source on a PCB assembly,(2) a diffuser that receives light from the light source,(3) a right angle prism that receives light from the diffuser,(4) a collimating lens that receives light from the prism,(5) a first mirror that receives light from the collimating lens,(6) a second mirror that receives light from the first mirror,(7) a third mirror that receives light from the second mirror,(8) an imaging lens that receives light from the third mirror, and (9) an image sensor on the same PCB assembly as the light source that receives light from the imaging lens.

在本发明的实例中，该光学指纹传感器包括有：①一个装在印刷电路板上的光源；②一个散射镜接收从光源发出的光；③一个直角棱镜接收从散射镜出来的光；④一个准直透镜接收从棱镜出来的光；⑤第一块镜子接收从准直透镜出来的光；⑥第二块镜子接收从第一块镜子出来的光；⑦第三块镜子接收从第二块镜子出来的光；⑧一块成像镜接收从第三块镜子出来的光；⑨一个与光源安装在同一块印刷电路板上的图像传感器接收从成像镜出来的光。

Light holds between its hands The white hill and black oaks, The path that goes o, The tree that stays; Light is a stone that breathes By the sleepwalking river, Light: a girl stretching, A dark bundle dawning; Light shapes the breeze in the curtains, Makes a living body from each hour, Enters the room and slips out, Barefoot, on the edge of a knife; Light is born a woman in a mirror, Naked under diaphanous leaves, Chained by a look, Dissolved in a wink; It touches the fruit and the unbodied, It is a pitcher from which the eye drinks clarities, A flame cut in blossom, a candle watching Where the blackwinged butterfly burns; Light opens the folds of the sheets And the creases of puberty, Glows in the fireplace, its flame becomes shadows That climb the walls, yearning ivy; Light does not absolve or condemn, Is neither just or unjust, Light with impalpable hands raises The buildings of symmetry; Light escapes through a passage of mirrors And returns to light: Is a hand that invents itself, An eye that sees itself in its own inventions.

光 双手拥着白色山峦与黑色橡树林，前行的路，停留的树；光是梦游的河旁呼吸的石光：一个女孩舒展，一束暗色破晓。光勾勒出帘中微风的形状，每时每刻造出一个鲜活的身体，光著脚，踩著刀刃；蹑入房间，又溜走；光是镜中诞生的女人，裸露在透明的叶底，被目光锁定，瞬间消逝；它触摸著果实和无形，眼睛在它的水罐饮著清晰，火焰绽放如花，蜡烛目睹黑翅的蝴蝶燃烧光展开被单的折皱与青春期的皱痕在壁炉里光芒焕发，它的火焰成影在墙上攀爬，怀恋著长春藤光既不赦免也不谴责无公平与不公平而言光，用无法察觉的双手举起对称的建筑；光在镜子的通道里逃遁返回于光：一只发明自己的手，一只在自己的发明中看到自己的眼。

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汽车防盗电子狗GPS，指纹采集仪，指纹仪，指纹锁，指纹设备，指纹传感器，指纹门禁，数字指纹采集仪，指纹门锁，指纹银行，指纹考勤机，指纹识别仪，指纹识别器，指纹识别器上网，汽车指纹防盗锁，汽车测速仪，汽车测速器，汽车雷达测速仪，汽车雷达测速器，汽车测速仪GPS，汽车雷达测速器GPS，汽车雷达测速仪GPS，汽车测速器GPS，手持式雷达测速仪，手持式雷达测速器，测速仪，测速器，雷达测速仪，雷达测速器，测速仪GPS，雷达测速器GPS，雷达测速仪GPS，测速器GPS，汽车防盗定位，汽车防盗定位GPS，汽车防盗报警，监控系统，监控器材，监控，监控安防，监控摄像机，闭路监控安防系统，网络远程监视，网络远程视频监控，反汽车测速器，反汽车测速仪，反汽车雷达测速仪，反汽车雷达测速器，反汽车雷达测速GPS，反汽车测速器GPS，反汽车测速仪GPS，汽车测速电子狗GPS，汽车雷达测速电子狗GPS，汽车测速电子狗GPS，汽车雷达测速电子狗GPS，汽车测速电子狗，汽车雷达测速电子狗，GPS反流动测速器/汽车电子狗，GPS反流动测速器，蓝牙GPS预警器，车载雷达探测器，GPS雷达预警器，电子狗|汽车电子狗|汽车反超速雷达|反电子眼|探测狗，反偷听，反偷拍，反窃听，手机电子狗，反手机窃听器，反手机监听器

The light source directs rays through a plane convex lens that focuses the light into a parallel beam. The light beam passes through the grid diaphragm, which splits it to produce a second beam of light 90° out of phase.

光源将光线照射到平凸透镜上，透镜将光线聚焦成平行光束，光束穿过光栅膜片，光栅将光束分离出第二根90度异相光束。

Five novel torsion-mirror optical actuators including double-beam thickness differential structure with single torsional axis, double flexible folded-beam structure with single torsional axis, double-beam vertical torsion comb structure with single torsion axis, four-beam differential compound-micromirror structure with double torsional axis and the combined structure of the four basis forms above, are brought forward. All of these devices could be fabricated by the same silicon micromachining process we have developed. The deformation compensation design with local enhancement for the thin torsional beam which is the key structure of these devices is also put forward to improve the reliability. The three-dimension solid model and two-dimension reduced order model of the torsion-mirror optical actuator are established and then the numerical simulations for evaluating the device characteristics of the statics, dynamics, electrostatic field, mechanical and electrostatic coupling, fluid and solid coupling are carried out to optimize the structure design. Furthermore, three optical fibre clamping structures which could be integrated monolithicly are designed and analyzed to improve the optical coupling capability. 4. Three flexible process flows combined with bulk silicon micromachining and surface silicon micromachining are brought forward to fabricate these novel single-crystal silicon or polysilicon torsion-mirror optical actuators by using the same lithography masks for both SOI wafer and regular silicon wafer. A series of important process experiments are carried out to optimize the process parameters and the process flows. Some novel and typical process phenomena which occurred during the microfabrication are analyzed and then the corresponding solutions are put forward. 5. A MEMS dynamic testing system which exploit blur image synthetic technique, stroboscopic image matching technique, stroboscopic mirau microscopic interferometry technique and microscopic laser dopper vibrometer technique is set up to measure three-dimension and six-freedom micro motions of any MEMS devices with nanometer resolution.

在对硅微机械扭转镜光致动器的光机电特性系统地理论研究的基础上提出了硅微机械扭转镜光致动器的结构设计准则。3、提出了单轴双梁厚度差分结构、单轴双柔性折叠梁结构、单轴双梁垂直扭转梳齿结构、双轴四梁差动复合微镜结构以及以上四种基本结构组合后的衍生结构等五种工艺加工技术兼容的新型的硅微机械扭转镜光致动器，对器件关键结构薄厚度、高耐疲劳扭转梁进行了局部加强的变形补偿设计，建立了器件的三维实体模型以及两维降阶模型，对提出的新结构硅微机械扭转镜光致动器进行了系统的静力学、动力学、静电场、力电耦合和流体固体耦合的建模仿真与优化设计，同时设计并分析了三种可实现单芯片集成的弹性光纤定位夹紧结构。4、提出了组合体硅微加工技术与表面硅微加工技术、兼容同一套光刻版图、可分别基于SOI 晶片和普通Si 晶片、适应于制造提出的各种新结构单晶硅和多晶硅硅微机械扭转镜光致动器的三套柔性加工工艺流程，开展了一系列重要工艺步骤的单项工艺试验，对工艺流程与工艺参数进行了优化，针对加工过程中出现的具有普遍意义的典型工艺问题进行了讨论和分析，并提出了解决方法。5、创新性地将模糊图像合成技术、频闪图像匹配技术、频闪Mirau 显微干涉技术与显微激光多普勒测振技术有机结合，建立起了一套周期运动测量与瞬态运动测量相结合、单点运动测量与全视场运动测量相结合、满足不同MEMS 器件各种动态测试要求的集成的MEMS 三维六自由度微运动精密测量系统。

In some buildings it is unable to apply strengthening measurements on the upper surface of the reinforced concrete continuous beam. On the basic character of RC continuous beam moment redistribution, a new method was tried to increase the beam's resisting moment capacity. The Carbon Fiber Reinforced Plastic was bonded on beam bottom of the span-mid, the flexural capacity of span-mid was increased, and the plastic hinge joint at the beam end was formed.

在实际加固工程中无法对钢筋混凝土连续梁梁顶进行加固，因此在试验中采用CFRP来加固梁的跨中，增强其正其正截面的抗弯承载力，并利用梁支座处出现塑性铰，引起弯矩重分布的特性，来达到加固的目的。

Based on the research on the scattering of the Gaussian beam from single sphere, the intensity distributions of LGB beam in different propagation distance is analyzed. Without considering the relationship of scattering and phase shift, the beam coefficients is gained by the solution of scattering cross section, and the LGB is expanded in terms of the vector spherical harmonics as fundamental Gaussian beam. The scattering of the beam with orbital angular momentum from single sphere located on the propagation axis is studied.

在单体球粒子对高斯光束散射研究的基础上，分析了在自由空间不同传输距离LGB光束的光强分布情况，在不考虑散射和波束相移关系的情况下，将LGB作为入射高斯光束，通过对波束入射时的散射衰减截面求解得到波束因子，利用矢量球谐函数对入射高斯波束进行展开，从而研究了单球粒子在在轴条件下对具轨道角动量高斯波束入射的散射问题。

The device includes a beam; at least one beam support mounted on the beam; a sensor assembly slidably connected to said beam and adapted for measuring the distance to the surface; and a transducer assembly adapted for measuring the position of said sensor assembly along said beam.

该装置包括：梁；至少一个梁支撑件，其安装在所述梁上；传感器组件，其与所述梁可滑动地连接并且适合于测量与所述表面的距离；以及变换器组件，其适合于测量所述传感器组件沿着所述梁的位置。

In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.

与遍地都是的太阳军旗不同，中国人的旗帜和徽章设计得各式各样。

From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.

从Feng 设在广州总部的产品展示柜台上可以看到，Soleil的设计师每月至少设计出5件新产品。