神经学家高尔基(Camillo Golgi)和卡哈尔(Santiago Ramón y Cajal)各自手绘了显微镜下的神经元图像,本文对此二人各自绘制的微观解剖图像进行了风格与认知心理学分析。最终发现,卡哈尔更加清晰地认识到了科学图像区别于艺术图像的...神经学家高尔基(Camillo Golgi)和卡哈尔(Santiago Ramón y Cajal)各自手绘了显微镜下的神经元图像,本文对此二人各自绘制的微观解剖图像进行了风格与认知心理学分析。最终发现,卡哈尔更加清晰地认识到了科学图像区别于艺术图像的功能属性,他绘制的图像包含的信息更多,有助于意义的传达与沟通,这或许得益于他在美术学院学习过绘画的经历。展开更多
The automatic all-sky imager developed by the Institute of Atmospheric Physics,Chinese Academy of Sciences,provides all-sky visible images in the red,green,and blue channels.This paper presents three major cali-bratio...The automatic all-sky imager developed by the Institute of Atmospheric Physics,Chinese Academy of Sciences,provides all-sky visible images in the red,green,and blue channels.This paper presents three major cali-bration experiments of the all-sky imager,geometric an-gular calibration,optical calibration,and radiometric calibration,and then infers an algorithm to retrieve rela-tive radiance from the all-sky images.Field experiments show that the related coefficient between retrieved radi-ance and measured radiance is about 0.91.It is feasible to use the algorithm to retrieve radiance from images.The paper sets up a relationship between radiance and the im-age,which is useful for using the all-sky image in nu-merical-simulations that predict more meteorological pa-rameters.展开更多
This paper presents the studies of the refining of IKONOS-2 RPC, the transform of the datum, the mode of the control point distribution and the method of IKONOS stereo triangulation, so that IKONOS imagery can be used...This paper presents the studies of the refining of IKONOS-2 RPC, the transform of the datum, the mode of the control point distribution and the method of IKONOS stereo triangulation, so that IKONOS imagery can be used to collect the precise geospatial data and produce the large scale map.The transform between the IKONOS-2 image space and the national coordinate system based on the RPC have been developed, and the results of block adjustment with various control schemes in a practical project near Himalayas have been examined and analysed. The encouraging results of high positioning accuracy have been obtained.展开更多
In Bachelard＇s thought, the understanding ＂of the other＂ in scientific thought is given usually by means of empirical or rational discourse. However, it is not unusual to realize the emphasis of scientific thought ...In Bachelard＇s thought, the understanding ＂of the other＂ in scientific thought is given usually by means of empirical or rational discourse. However, it is not unusual to realize the emphasis of scientific thought as rationally justifiable. Certainly, the dynamics of scientific thought throughout history has not been indifferent to other possibilities of epistemological construction. We cannot escape the facts： Science needs linguistic devices to strengthen its principles and criteria for validation. The aim of this paper is to answer, based on a new conception of metaphor, under what conditions metaphor can be a ＂physical metaphor＂ and the extent to which the symbolism in general brings a special light gain of sense to the understanding of physical reality that surrounds us.展开更多
文摘神经学家高尔基(Camillo Golgi)和卡哈尔(Santiago Ramón y Cajal)各自手绘了显微镜下的神经元图像,本文对此二人各自绘制的微观解剖图像进行了风格与认知心理学分析。最终发现,卡哈尔更加清晰地认识到了科学图像区别于艺术图像的功能属性,他绘制的图像包含的信息更多,有助于意义的传达与沟通,这或许得益于他在美术学院学习过绘画的经历。
基金supported by the national natural science foundation of China (Grant Nos.40505006 and 40775026)
文摘The automatic all-sky imager developed by the Institute of Atmospheric Physics,Chinese Academy of Sciences,provides all-sky visible images in the red,green,and blue channels.This paper presents three major cali-bration experiments of the all-sky imager,geometric an-gular calibration,optical calibration,and radiometric calibration,and then infers an algorithm to retrieve rela-tive radiance from the all-sky images.Field experiments show that the related coefficient between retrieved radi-ance and measured radiance is about 0.91.It is feasible to use the algorithm to retrieve radiance from images.The paper sets up a relationship between radiance and the im-age,which is useful for using the all-sky image in nu-merical-simulations that predict more meteorological pa-rameters.
基金Funded by the Western Region Transport Development Science and Technology Program (No.2002 318 0050).
文摘This paper presents the studies of the refining of IKONOS-2 RPC, the transform of the datum, the mode of the control point distribution and the method of IKONOS stereo triangulation, so that IKONOS imagery can be used to collect the precise geospatial data and produce the large scale map.The transform between the IKONOS-2 image space and the national coordinate system based on the RPC have been developed, and the results of block adjustment with various control schemes in a practical project near Himalayas have been examined and analysed. The encouraging results of high positioning accuracy have been obtained.
文摘In Bachelard＇s thought, the understanding ＂of the other＂ in scientific thought is given usually by means of empirical or rational discourse. However, it is not unusual to realize the emphasis of scientific thought as rationally justifiable. Certainly, the dynamics of scientific thought throughout history has not been indifferent to other possibilities of epistemological construction. We cannot escape the facts： Science needs linguistic devices to strengthen its principles and criteria for validation. The aim of this paper is to answer, based on a new conception of metaphor, under what conditions metaphor can be a ＂physical metaphor＂ and the extent to which the symbolism in general brings a special light gain of sense to the understanding of physical reality that surrounds us.
