refraction相关论文
目的:探讨海口市某幼儿园在园儿童屈光与视力筛查结果.方法:对某幼儿园304名儿童进行屈光与视力筛查,分析检查结果.结果:该幼儿园......
Underwater navigation system is an indispensable part for autonomous underwater vehicles.Due to the indiscernibility of ......
The aim of this study is to evaluate primitively whether the extent and component ofastigmatism influence the regression......
Typical fundus photography produces a two-dimensional image. This makes it difficult to observe the microvascular and ne......
现有的结构光视觉测量系统中,相机和结构光投射器安装在玻璃管内部以实现全景测量,但玻璃管会导致光发生折射而带来畸变。针对上述......
针对折射现象对水下视觉系统的影响并为了实现视觉系统的便携性,本文构建了基于光平面约束的水下视觉测量系统。首先,建立了基于光......
Influence of lens position as detected by an anterior segment analysis system on postoperative refra
AIM:To predict postoperative intraocular lens(IOL)position using the Sirius anterior segment analysis system and investi......
Determination of the Refraction Coefficient and Its Uncertainty by Using Modern Hydrostatic Levellin
In spite of the technological development of the last decades in the field of the geodetic instruments,some parameters,w......
目前我国学生近视眼患病率不断上升，近视眼低龄化趋势不断扩大，已经引起国家和政府的高度重视。为使我国的近视眼防控工作尽早取得实......
目的了解西藏自治区昌都市学龄前儿童的屈光状态特点及影响因素。方法横断面研究。于2020年7至10月调查西藏自治区昌都市区所有在......
色彩本为自然而生,当它为人所用时,就须人为冠以名称,以便区分.在时间的冲刷下,不同的文化不断给色彩注入新的活力,使它的寓意随着......
In general, the propagating behavior of extraordinary wave in anisotropic materials is different from that in isotropic ......
A linear hybrid model of Mild Slope Equation (MSE) and Boundary Element Method (BEM) is developed to study the wave prop......
We theoretically demonstrate the imaging properties of a complex two-dimensional(2D)face-centered square lattice photoni......
Photonic crystal(PC)ofers a powerful means to mold the flow of light and manipulate lightmatter interaction at subwavele......
Flat lenses are designed by means of graded negative refractive index-based photonic crystals(PCs) constructed using air......
Mathematical model of wave transformation over radial sand ridge field on continental shelf of South
According to a deformed mild-slope equation derived by Guang-wen Hong and an enhanced numerical method,a wave refraction......
随着医疗技术的发展和人民生活水平的提高，接受屈光性角膜手术的人员逐渐增多。在招飞体检中，我们亦发现部分屈光性角膜手术后的受检......
AIM:To evaluate the effects of glycemic control on refraction in diabetic patients. METHODS:Twenty newly diagnosed diabe......
The optical limiting response of lead phthalocyanine in toluene solution for 532 nm, 23 ps laser pulses is reported and ......
When a signal propagates in the atmosphere, a small variation will occur in its propagation direction because of refract......
期刊
Internal solitary waves(ISWs) are frequently observed in the area between Dongsha Island(DI) and Taiwan Island. However,......
Rare-earth gallium garnets,owing to their high transparency,high indexof refraction(～1.98)and suitable hardness(～7.5mohs)......
The Variation Range of Optical Constants and Distribution Characteristics of Shock Lamellae in Shock
Two moderately shocked rock samples collected from the Ries Crater, West Ger-many (granite--gneiss sample RC--647--29 a......
Longley-Rice channel model modifies the atmospheric refraction by the equivalent earth radius method,which is simple cal......
Negative refraction and subwavelength imaging properties of a two-dimensional (2D) photonic crystal (PC)slab are studie......
To increase the channel number in the optic filter, the multiple-phase-shift (MPS) technology is adoped based on the mul......
We investigate in detail the influence of line defects on focusing of electromagnetic waves in a two-dimensional photoni......
This paper studies a small f-number metallic lens with depth-modulated slits.Slits filled with dielectric between silver......
Two foundational factors (escape cone and transmissivity) about light extraction of light emitting diodes (LEDs) are dis......
We demonstrate an all-optical switching of the magnetic resonance properties associated with a metallic Split Ring Reson......
The propagation performance of high-power partially coherent fibre laser beams in a real environment is investigated and......
Defects seriously influence the optical properties and mechanical properties of CVDZnS.The deposition technique was intr......
The emergence angle of specialty solid coupled (SSC) optical taper is numerically studied by using ray-tracing method, w......
A novel tunable optical power splitter,with a Y-branch waveguide based on the total internal reflection and a microprism......
Transparent Nd : BiB3O6 crystal has been grown by top-seeded method. The refraction indices of the crystal were measured......
A Matlab(2009a) program was developed to simulate the photons emitted by the LED chips.The photons’transmission,reflect......
Because of the disturbance of some regular waves, the deformity of reflective wave occurs, making the coherence inversio......
A novel element for collimating LED light is designed based on non-imaging optics. It is composed of a refraction lens a......
Joint exploration of crustal structure in Fuzhou basin and its vicinities by deep seismic reflection
The Fuzhou basin and its vicinities are located at the northern end of the southeastern coastal seismic zone of the main......
The crustal structure under Sanjiang and its dynamic implications: Revealed by seismic reflection/re
The fault belts in Sanjiang mainly include Jinshajiang-Honghe fault, Lancangjiang fault and Nujiang fault (called Sanjia......
Ultra-thin two-dimensional transmissive anisotropic metasurfaces for polarization filter and beam st
We propose an anisotropic planar transmitting metasurface, which has the ability to manipulate orthogonally-polarized el......
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The Zhangzhou basin is located at the middle section of the southeast coast seismic zone of the mainland of China. Using......
Fine upper crustal structure of Jiashi strong earthquake swarm region in Xinjiang in-ferred from hig
The data obtained from a high resolution seismic refraction profile, which was carried out in Jiashi, Xinjiang, strong e......
Based on the results obtained from Pg wavefront imaging in active source deep seismic sounding, we propose a new ray hit......
On the assumption that the vortex and the vertical velocity component of the current aresmall,a mild-slope equation for ......
An efficient numerical model for wave refraction,diffraction and reflection is presented in thispaper.In the model,the m......
—A numerical model for wave diffraction-refraction in water of varying current and topogra-phy is proposed,and time-dep......
目的 探讨1％环戊通在儿童屈光流行病学调查中的应用价值 方法 用小瞳检影法分别对玉溪市、临沧市7所幼儿园2～6岁儿童进行屈光筛查,对......
