查询词典 refractive

The light filtrating properties were studied through the filling of 3D continuous pores with divinyl benzene as a highly refractive liquid.

研究了三维连续孔道在充满二乙烯基苯高折射液体后的滤光特性，通过引入金属离子改变固体材料折射率的方法，验证了光在高折射液相中的全反射效应，并从定性角度建立三维骨架材料的孔径及分布与透射光波长范围之间的关系，对新光学现象给出了初步解释。

KEY WORDS: keratectomy,subepithelial,laser-assisted; corneal opacity; refractive errors; vision,entoptic

角膜切削术；上皮下；激光；屈光不正；视觉，内视

The factors include the material, the structure, the refractive index distributing, the length, the diameter, the num erical aperture,thermal effect and the coupling of optical fiber.

这些因素主要包括光纤材料、构造、光纤的折射率分布、光纤的长度和芯径、光纤的数值孔径和热效应以及耦合等。

An effective method was developed to get the optical properties from the transmittance spectrum of the sample, and the dependences of refractive index and extinctive coefficient on wavelength were calculated with this method.

得出了该薄膜在400nm～2400nm区域内的折射率、消光系数等参量与波长的变化关系和与之相符合的柯西色散公式，并通过外推的方法估算出了薄膜的光学能量带隙为3.65eV。

To obtain precise result, itis necessary, in the aspect of hardware, to set up one stable optics system with highSNR, only if so, can we do the measurement with the steady NIR. To do so, we designthe optics system using AOTF, and take some measures to increase the light energyand the system SNR, which includes the three layers structure of the light chamber,the equipments to cover the useless light, polarizing to reduce the influence of 0 gradelight and focalize the light with lens. Apart from the hardware aspect, according to theexperiments, we can see that the different temperatures between at setting up themodels and at predicting the results will affect the prediction results in a way, and theaffection extent will be increased along with the increase of the temperaturedifference. Moreover, the light energy that can be detected will be different with thecontact pressure, and the match of the refractive indexes between the tissue and thesurroundings will enhance the light transmission depth, which will take moreinformation of the tissue. So, during the measurement, we should ensure the sametemperature between measuring and predicting, the same contact pressure at everymeasurement and the match of the indexes between the tissue and the surroundings aspossible as we can.

要提高测量精度，从硬件方面就必须有一个稳定的、信噪比较高的分光光路系统，以此得到稳定的近红外光来进行无创检测，针对这个目的，我们设计了 AOTF 分光光路系统，并在系统中采用一定的措施如三层灯室结构、遮光筒以减小杂散光、起偏和检偏来减小 0 级光影响、透镜汇聚等等来提高出射光的能量和系统的信噪比；从其他影响因素方面，通过实验，我们得到不同的建模温度对于预测结果有一定的影响，且影响随着温度的差值越大而越大，另外散反射光谱的能量也随着接触压力的不同而不同，组织的折射率与环境匹配将加大光的入射深度，从而能携带更多的组织信息，所以在测量时我们尽可能保证同一温度、保证同一接触压力以及利用物理或者化学的方法使组织与环境折射率匹配等。

Yunnan province ; glauberite ; optical angle ; major refractive index ; cell parameter ; electron microprobe analysis

钙芒硝；光轴角；主折射率；晶胞参数；电子探针分析；云南省

This suggested that various hypermetropic refractive errors in infants may become "a risk" for the development of esotropia and should be corrected early with appropriate lenses, together with close observation of visual acuity and alteration eye position...

本文从历年来门诊检查的无斜视远视患儿和经专科门诊诊断为内斜视的患者中，分析了远视性屈光不正、两眼屈光参差及散光等数据，试图找出发生斜视&危险&的远视、屈光参差及散光的度数，以此

When eye filled with silicone oil,the change of refractive power tends to be highly hyperopic,the amplitude of accommodation decreased,and the regular IOL power calculation formula is no longer available.

视网膜脱离复位术并硅油填充后眼球屈光发生了高度远视趋向变化，调节幅度明显下降，常规人工晶状体的有效度数计算在硅油填充后将不再适用。

Intrastromal corneal ring segments (Intacs; Addition Technology Inc., Fremont, California) were designed to achieve a refractive adjustment by flattening the central corneal curvature while maintaining clarity in the central optical zone.

角膜基质环植入术（Intacs，Addition Technology Inc。， Fremont，加州）」的设计是利用拉平角膜中央的弧度，来维持角膜中央视力清晰，达到调整折射、改善视力的目的。

To find out about technologies that are truly "over the horizon" in refractive surgery, we introduce several surgical methods and new trend in the future. These include intracorneal rings, laser thermal keratoplasty, phakic in traocular lens, pico-second intrastromal laser, conductive keratoplasty,scleric expansion devices and customized LASIK.

本文整理介绍数种手术方法：包括有角膜内环扣、高温雷射角膜塑型术、眼内镜片植入术、角膜基质中光雷射、传导式角膜塑形术、巩膜扩张术、完全雷射层状角膜型术以及未来雷射角膜屈光手术之趋势。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。