视网膜病变是非典型帕金森综合征疾病的研究热点之一。视功能障碍及视网膜改变可能成为特异性生物学标志物,有利于疾病的鉴别与诊疗。文中就多系统萎缩、进行性核上性麻痹的视觉特征及视网膜病变的相关研究作综述。Retinopathy is one o...视网膜病变是非典型帕金森综合征疾病的研究热点之一。视功能障碍及视网膜改变可能成为特异性生物学标志物,有利于疾病的鉴别与诊疗。文中就多系统萎缩、进行性核上性麻痹的视觉特征及视网膜病变的相关研究作综述。Retinopathy is one of the research hotspots of atypical parkinsonism diseases. Visual dysfunction and retinal changes may become specific biological markers, which are conducive to the identification and diagnosis and treatment of diseases. This paper reviews the visual features and retinopathy of multiple system atrophy and progressive supranuclear palsy.展开更多
为了实现对导弹导引头红外跟踪系统中抛物面反射主镜的装配角度进行监控和调试,提出了一种通过电荷耦合器件接收抛物面反射镜的聚焦光斑,同时旋转抛物面镜,采集光斑重心位置信息,并利用最小二乘法对光斑重心轨迹进行拟合,从而计算出光...为了实现对导弹导引头红外跟踪系统中抛物面反射主镜的装配角度进行监控和调试,提出了一种通过电荷耦合器件接收抛物面反射镜的聚焦光斑,同时旋转抛物面镜,采集光斑重心位置信息,并利用最小二乘法对光斑重心轨迹进行拟合,从而计算出光轴与结构中心轴之间的偏心角的实现方案。对实现方案进行了理论分析和实验验证,不同于通常的透射聚焦镜关系,得到该环状抛物面反射主镜的装配偏心角α与焦斑重心轨迹圆半径 R 间的线性关系式中的系数为1.13。结果表明,该系统能够应用于对抛物面反射主镜装配角度的测试和监控。展开更多
This paper with the purpose of protecting visual landscape environment in historical and cultural districts,analyzes categories and characteristics of historical and cultural districts from the perspective of visual l...This paper with the purpose of protecting visual landscape environment in historical and cultural districts,analyzes categories and characteristics of historical and cultural districts from the perspective of visual landscape,finally with the assessment basis of "landscape picture" proposes the classification of areas of 5 different levels,that is,the optimal viewing gallery,the secondary viewing gallery,the optimal viewing surface,the secondary viewing surface,and the common viewing surface,explores an approach of evaluating pollution indexes in historic and cultural districts by comprehensively evaluating "landscape pictures" in those areas of different levels.展开更多
文摘视网膜病变是非典型帕金森综合征疾病的研究热点之一。视功能障碍及视网膜改变可能成为特异性生物学标志物,有利于疾病的鉴别与诊疗。文中就多系统萎缩、进行性核上性麻痹的视觉特征及视网膜病变的相关研究作综述。Retinopathy is one of the research hotspots of atypical parkinsonism diseases. Visual dysfunction and retinal changes may become specific biological markers, which are conducive to the identification and diagnosis and treatment of diseases. This paper reviews the visual features and retinopathy of multiple system atrophy and progressive supranuclear palsy.
文摘为了实现对导弹导引头红外跟踪系统中抛物面反射主镜的装配角度进行监控和调试,提出了一种通过电荷耦合器件接收抛物面反射镜的聚焦光斑,同时旋转抛物面镜,采集光斑重心位置信息,并利用最小二乘法对光斑重心轨迹进行拟合,从而计算出光轴与结构中心轴之间的偏心角的实现方案。对实现方案进行了理论分析和实验验证,不同于通常的透射聚焦镜关系,得到该环状抛物面反射主镜的装配偏心角α与焦斑重心轨迹圆半径 R 间的线性关系式中的系数为1.13。结果表明,该系统能够应用于对抛物面反射主镜装配角度的测试和监控。
基金Supported by Scientific Research and Innovation Program for Post-graduates in Jiangsu Province (CX10S_045Z)~~
文摘This paper with the purpose of protecting visual landscape environment in historical and cultural districts,analyzes categories and characteristics of historical and cultural districts from the perspective of visual landscape,finally with the assessment basis of "landscape picture" proposes the classification of areas of 5 different levels,that is,the optimal viewing gallery,the secondary viewing gallery,the optimal viewing surface,the secondary viewing surface,and the common viewing surface,explores an approach of evaluating pollution indexes in historic and cultural districts by comprehensively evaluating "landscape pictures" in those areas of different levels.