查询词典 visual acuity

In the experiments, detection rate and reaction time were measured to evaluate the visual performance of human eyes at three mesopic light levels0.01, 0.1 and 1 cd·m~(-2 with targets of two visual angles (10 and 2°) at two observing eccentricities (0°, 10°). There generated more than 30,000 single measured data and analysis with statistical and computer methods were done.

本论文的实验选用了探测率和反应时间作为评价人眼在中间视觉状态下视觉功能的主要参数，分别在3组典型的中间视觉亮度作为背景亮度0.01，0.1和1 cd·m~(-2和2组不同视场角的目标(10'和2°)以及2组不同的观测偏心度(0°，10°)条件下，先后在中国和德国进行了30，000多个数据采样，并运用计算机技术进行统计分析和研究。

This research is to find out the effects of light level, visual angle and eccentricity on the spectral sensitivity of human eyes at mesopic region; to validate the possibility of working out the spectral luminous efficacy curves based on visual performance at mesopic light levels; to find the connection between the results of performance-based method and brightness-matching method.

本论文主要研究照明水平、目标大小和目标偏心度等因素对中间视觉状态下视觉功能的光谱响应特性的影响；探讨在视觉功能的基础上获得人眼光谱光视效率的可能性以及基于视觉功能法(Performance-based Method)和传统的视亮度匹配法(Brightness-matching method)之间所存在的联系。

The creative point of this dissertation consists firstly in that monochromatic stimuli instead of combined spectral power distribution were used as visual object, and spectral luminous efficacy curves were drawn from the performance-based method; Comparison between performance-based method and brightness-matching method was then done and therefore connection between these two methods was developed; One more creative point is that the analysis based on the theory of neurophysiology and psychophysics leads to the conclusion that contribution of the colour channel during visual information processing is reflected from performance-based method, which should be considered when CIE develops the new mesopic photometry system.

论文的新颖之处在于实验中使用了单色光谱代替复合谱或物体色作为视觉目标，在分析中间视觉状态下视觉功能的光谱响应特性的基础上反推了人眼的光谱光视效率函数；论文更进一步验证了基于视觉功能法和传统的视亮度匹配法之间的联系，在两种方法之间构造了一座桥梁，为基于视觉功能法的使用初步建立了理论依据；同时论文创新地采用心理物理学的方法进行实验和结合物理学和视神经生理学的知识对实验结果进行分析，从而从视觉信息处理的神经机制层面证明了基于视觉功能法获得的结果包含了视觉颜色通道效应，并对CIE在建立新的中间视觉光度学系统时要充分考虑这一视觉颜色通道的影响提出了建议。

The neural network model simulates the visual characteristics of the human visual system by axons delay pulse neural network in order to extract the moving target and anlyse the actual significance of pulse neuroid algorithm.

这里提出一种基于神经轴突延迟机制，利用脉冲神经元网络模型对运动目标进行检测与跟踪的算法，该神经网络模型是利用轴突延迟脉冲神经网络模拟人类的视觉特性，从而提取运动目标，并具体分析脉冲神经元网络算法的实际意义。

Methods: The visual P300 mapping were measured in patients with some clinical diseases by Medicid-03E brain evoked potential instrument of Neuronic company, and the visual P300 mapping of patients were compared with that of control group.

使用Neuronic 公司的Medicid-03E脑诱发电位仪分别对临床上的一些疾病患者进行了视觉P300地形图的测定并与对照组作比较。

As a real visual system existing in nature, ommateum not only have the same function as other visual systems, but also have its special feature.

复眼作为一个现实中的生物的视觉系统，它首先具有一般生物眼睛的视觉系统功能，在此之外，还拥有其独特的特点。

As a real visual system existing in nature, ommateum not only have the same function as other visual systems, but also have its special feature.

本文就是从这两点展开讨论研究。

The shorter of interruption duration, the more obvious interruption effects, and this support the motion opponency theroy. 3 The different intervals between priming and target were detected. Due to interruption of blank frame, the shorter interruption elicited positive proming effects, which is consistant with integration of temporal and spatial in the human brain. 4 The negative of the same direction is relationship to visual adaption and visual inertia effects.

本系列实验得到以下主要结果与结论：1插入空白图片，将导致特定运动方向的反转，而对二义的运动没有明显影响，反映了空白图片对正常视觉运动的阻断；2阻断时间越短，导致特定运动方向反转的几率越大，即阻断效应越明显，支持运动知觉对立理论；3考察不同间隔的启动——靶刺激，由于空白刺激的插入，启动——靶刺激间隔较短时引起的正性启动效应，与人脑系统对视觉信号的时间与空间整合和视觉惯性是一致的。4同向运动的负性倾斜效应与视觉适应有关。

This paper begin with visual apperception, the expression of architecture symbol and identification of the environment ,from the visualeffect of detailed construction specific, road sight, virescence, environment opusculum and so on, materialize the solicitude for human from minute aspects through identification of circumstance and expression of construction signals to form favorable visual sight.

文章从视觉感知、建筑符号的表达、环境的可识别性开始，通过对具体内容，如居住建筑细部、道路景观、绿化布置、环境小品等的视觉效果研究，从细部体现对人的关怀，形成人性化的视觉景观体系。

We upgrated the Visual Motion Priming model proposed by Pantle, that means to insert a blank frame between priming and target. The goal is to explore the mechanism of visual motion priming in the brain. Method: Undergraduates on campus participated the experiments as paid volunter with normal or corelected normal version.

因此本实验对Pantle的视觉运动启动实验模式进行了改进，由特定运动方向的启动刺激引导靶刺激，在启动刺激与靶刺激之间加入一个空白阻断图片，从而打断启动——靶刺激的正常启动序列，目的是观察加入空白阻断图片，对于运动启动现象的影响以及对不同的视觉运动序列运动方向的影响。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。