In the context of rapid urbanization,cities must leverage their unique advantages to enhance their competitiveness.It has become a prevalent practice to integrate Chinese cultural elements into a city’s brand identit...In the context of rapid urbanization,cities must leverage their unique advantages to enhance their competitiveness.It has become a prevalent practice to integrate Chinese cultural elements into a city’s brand identity,as well as to transform and elevate the existing landscape.This paper examines the landscape evolution of Nanchang Bayi Park(Baihuazhou)and the associated measures for its transformation and enhancement.The findings indicate that,from the perspective of urban visual art,these transformations significantly enhance the city’s aesthetic perception and more effectively address the needs of people.Consequently,this contributes to the ongoing improvement and development of the city’s brand image.By modifying the urban structure,enhancing the urban environment,upgrading infrastructure,and elevating the cultural levels within urban areas,the objective of transforming and upgrading urban landscapes can be realized.展开更多
Psychophysical studies suggest that lateral extrastriate visual cortical areas in cats may mediate the sparing of vision largely by network reorganization following lesions of early visual cortical areas. To date, how...Psychophysical studies suggest that lateral extrastriate visual cortical areas in cats may mediate the sparing of vision largely by network reorganization following lesions of early visual cortical areas. To date, however, there is little direct physiological evidence to support this hypothesis. Using in vivo single-anit recording techniques, we examined the response of neurons in areas 19, 21, and 20 to different types of visual stimulation in cats with or without acute bilateral lesions in areas 17 and 18. Our results showed that, relative to the controls, acute lesions inactivated the response of 99.3% of neurons to moving gratings and 93% of neurons to flickering square stimuli＇in areas 19, 21, and 20. These results indicated that acute lesions of primary visual areas in adult eats may impair most visual abilities. Sparing of vision in cats with neonatal lesions in early visual cortical areas may result largely from a postoperative reorganization of visual pathways from subcortical nucleus to extrastriate visual cortical areas.展开更多
In the Original Publication,the article title was incorrectly given as'Distributions of Visual Receptive Fields from Retinotopic to Craniotopic Coordinates in the lateral intraparietal and frontal eye field of the...In the Original Publication,the article title was incorrectly given as'Distributions of Visual Receptive Fields from Retinotopic to Craniotopic Coordinates in the lateral intraparietal and frontal eye field of the Macaque'but should have been'Distributions of Visual Receptive Fields from Retinotopic to Craniotopic Coordinates in the Lateral Intraparietal Area and Frontal Eye Fields of the Macaque'.展开更多
It is well known that auditory cortical areas are activated by visual stimulation in the deaf. However, it is not known whether the information enters from the primary visual area or high-level visual areas. In this s...It is well known that auditory cortical areas are activated by visual stimulation in the deaf. However, it is not known whether the information enters from the primary visual area or high-level visual areas. In this study, we used visual language stimulation to examine visual-auditory functional connectivity. For this, we used functional magnetic resonance imaging (fMRI) in a congenitally deaf subject to localize areas in the auditory cortex that showed cross-modal reorganization for the processing of visual language inputs and estimate areas in the visual ventral stream, from which language signal inputs enter the auditory areas in the congenitally deaf. We found that the anterior region of the secondary auditory cortex in the superior temporal gyrus showed language-specific activation and that the visual inputs into the area were from the fusiform gyrus, which is a high-level visual area.展开更多
A practical method for visualizing flood area and evaluating damage is presented,which consists of two technical approaches:self-programming and adapting commercial GIS platforms.The low-cost and easy-to-use GIS-Based...A practical method for visualizing flood area and evaluating damage is presented,which consists of two technical approaches:self-programming and adapting commercial GIS platforms.The low-cost and easy-to-use GIS-Based model developed by self-programming can meet current requirements of most local authorities,especially in developing countries.In this model,two cases,non-source flood and source flood,are distinguished and the Seed-spread algorithm suitable for source-flood is discussed;The flood damage is assessed by overlaying the flood area range with thematic maps and other related social and economic data.and all thematic maps are converted to raster format before overlay analysis.Two measures are taken to improve the operation efficiency of speed seed-spread algorithm.The accuracy of the model mainly depends on the resolution and precision of the DEM data,and the accuracy of registering all raster layers and the quality of attribute data.展开更多
The physiological characteristics of the marmoset second visual area(V2) are poorly understood compared with those of the primary visual area(V1). In this study, we observed the physiological response characteristics ...The physiological characteristics of the marmoset second visual area(V2) are poorly understood compared with those of the primary visual area(V1). In this study, we observed the physiological response characteristics of V2 neurons in four healthy adult marmosets using intracortical tungsten microelectrodes. We recorded 110 neurons in area V2, with receptive fields located between 8° and 15° eccentricity. Most(88.2%) of these neurons were orientation selective, with half-bandwidths typically ranging between 10° and 30°. A significant proportion of neurons(28.2%) with direction selectivity had a direction index greater than 0.5. The vast majority of V2 neurons had separable spatial frequency and temporal frequency curves and, according to this criterion, they were not speed selective. The basic functional response characteristics of neurons in area V2 resemble those found in area V1. Our findings show that area V2 together with V1 are important in primate visual processing, especially in locating objects in space and in detecting an object's direction of motion. The methods used in this study were approved by the Monash University Animal Ethics Committee, Australia(MARP 2009-2011) in 2009.展开更多
This paper mainly evaluated the walkability of the streets around the subway Futong Station in Wangjing area,and with the help of relevant theoretical research conclusions such as environmental behavioral psychology,t...This paper mainly evaluated the walkability of the streets around the subway Futong Station in Wangjing area,and with the help of relevant theoretical research conclusions such as environmental behavioral psychology,to study the effect of the visual walkability of streets in different communities on the walking activities of young male residents.Through in-depth analysis of the characteristics of streets that are suitable for walking and young male residents like to walk,practical and feasible reference suggestions were provided for the design of street public space and the establishment of a more livable urban environment.The text was divided into 3 parts:the determination of the functional types of the streets around Futong Station;the characteristics of young men's crowd activities and the establishment of an evaluation system;the visual walkability evaluation of the streets around Futong Station.展开更多
This study experimentally analyzes the nonlinear flow characteristics and channelization of fluid through rough-walled fractures during the shear process using a shear-flow-visualization apparatus.A series of fluid fl...This study experimentally analyzes the nonlinear flow characteristics and channelization of fluid through rough-walled fractures during the shear process using a shear-flow-visualization apparatus.A series of fluid flow and visualization tests is performed on four transparent fracture specimens with various shear displacements of 1 mm,3 mm,5 mm,7 mm and 10 mm under a normal stress of 0.5 MPa.Four granite fractures with different roughnesses are selected and quantified using variogram fractal dimensions.The obtained results show that the critical Reynolds number tends to increase with increasing shear displacement but decrease with increasing roughness of fracture surface.The flow paths are more tortuous at the beginning of shear because of the wide distribution of small contact spots.As the shear displacement continues to increase,preferential flow paths are more distinctly observed due to the decrease in the number of contact spots caused by shear dilation;yet the area of single contacts in-creases.Based on the experimental results,an empirical mathematical equation is proposed to quantify the critical Reynolds number using the contact area ratio and fractal dimension.展开更多
文摘In the context of rapid urbanization,cities must leverage their unique advantages to enhance their competitiveness.It has become a prevalent practice to integrate Chinese cultural elements into a city’s brand identity,as well as to transform and elevate the existing landscape.This paper examines the landscape evolution of Nanchang Bayi Park(Baihuazhou)and the associated measures for its transformation and enhancement.The findings indicate that,from the perspective of urban visual art,these transformations significantly enhance the city’s aesthetic perception and more effectively address the needs of people.Consequently,this contributes to the ongoing improvement and development of the city’s brand image.By modifying the urban structure,enhancing the urban environment,upgrading infrastructure,and elevating the cultural levels within urban areas,the objective of transforming and upgrading urban landscapes can be realized.
基金National Natural Science Foundation of China (31171082)Natural Science Foundation of Anhui Province (070413138)Key Research Foundation of Anhui Province Education Department (KJ2009A167)
文摘Psychophysical studies suggest that lateral extrastriate visual cortical areas in cats may mediate the sparing of vision largely by network reorganization following lesions of early visual cortical areas. To date, however, there is little direct physiological evidence to support this hypothesis. Using in vivo single-anit recording techniques, we examined the response of neurons in areas 19, 21, and 20 to different types of visual stimulation in cats with or without acute bilateral lesions in areas 17 and 18. Our results showed that, relative to the controls, acute lesions inactivated the response of 99.3% of neurons to moving gratings and 93% of neurons to flickering square stimuli＇in areas 19, 21, and 20. These results indicated that acute lesions of primary visual areas in adult eats may impair most visual abilities. Sparing of vision in cats with neonatal lesions in early visual cortical areas may result largely from a postoperative reorganization of visual pathways from subcortical nucleus to extrastriate visual cortical areas.
文摘In the Original Publication,the article title was incorrectly given as'Distributions of Visual Receptive Fields from Retinotopic to Craniotopic Coordinates in the lateral intraparietal and frontal eye field of the Macaque'but should have been'Distributions of Visual Receptive Fields from Retinotopic to Craniotopic Coordinates in the Lateral Intraparietal Area and Frontal Eye Fields of the Macaque'.
文摘It is well known that auditory cortical areas are activated by visual stimulation in the deaf. However, it is not known whether the information enters from the primary visual area or high-level visual areas. In this study, we used visual language stimulation to examine visual-auditory functional connectivity. For this, we used functional magnetic resonance imaging (fMRI) in a congenitally deaf subject to localize areas in the auditory cortex that showed cross-modal reorganization for the processing of visual language inputs and estimate areas in the visual ventral stream, from which language signal inputs enter the auditory areas in the congenitally deaf. We found that the anterior region of the secondary auditory cortex in the superior temporal gyrus showed language-specific activation and that the visual inputs into the area were from the fusiform gyrus, which is a high-level visual area.
文摘A practical method for visualizing flood area and evaluating damage is presented,which consists of two technical approaches:self-programming and adapting commercial GIS platforms.The low-cost and easy-to-use GIS-Based model developed by self-programming can meet current requirements of most local authorities,especially in developing countries.In this model,two cases,non-source flood and source flood,are distinguished and the Seed-spread algorithm suitable for source-flood is discussed;The flood damage is assessed by overlaying the flood area range with thematic maps and other related social and economic data.and all thematic maps are converted to raster format before overlay analysis.Two measures are taken to improve the operation efficiency of speed seed-spread algorithm.The accuracy of the model mainly depends on the resolution and precision of the DEM data,and the accuracy of registering all raster layers and the quality of attribute data.
基金supported by travel grants from Monash University and the University of Sichuan(to YY)Research Grants from the Australian Research Council(No.DP0451206)(to MGPR)National Health and Medical Research Council(No.384115)(to MGPR)。
文摘The physiological characteristics of the marmoset second visual area(V2) are poorly understood compared with those of the primary visual area(V1). In this study, we observed the physiological response characteristics of V2 neurons in four healthy adult marmosets using intracortical tungsten microelectrodes. We recorded 110 neurons in area V2, with receptive fields located between 8° and 15° eccentricity. Most(88.2%) of these neurons were orientation selective, with half-bandwidths typically ranging between 10° and 30°. A significant proportion of neurons(28.2%) with direction selectivity had a direction index greater than 0.5. The vast majority of V2 neurons had separable spatial frequency and temporal frequency curves and, according to this criterion, they were not speed selective. The basic functional response characteristics of neurons in area V2 resemble those found in area V1. Our findings show that area V2 together with V1 are important in primate visual processing, especially in locating objects in space and in detecting an object's direction of motion. The methods used in this study were approved by the Monash University Animal Ethics Committee, Australia(MARP 2009-2011) in 2009.
基金Sponsored by 2022 Beijing Undergraduate Innovation and Entrepreneurship Training Plan,and Construction of an Exemplary off-campus Internship Base for the Integration of Industry and Education。
文摘This paper mainly evaluated the walkability of the streets around the subway Futong Station in Wangjing area,and with the help of relevant theoretical research conclusions such as environmental behavioral psychology,to study the effect of the visual walkability of streets in different communities on the walking activities of young male residents.Through in-depth analysis of the characteristics of streets that are suitable for walking and young male residents like to walk,practical and feasible reference suggestions were provided for the design of street public space and the establishment of a more livable urban environment.The text was divided into 3 parts:the determination of the functional types of the streets around Futong Station;the characteristics of young men's crowd activities and the establishment of an evaluation system;the visual walkability evaluation of the streets around Futong Station.
基金This study has been partially funded by National Key Research and Development Program of China(Grant No.2020YFA0711800)the National Natural Science Foundation of China(Grant No.51979272)the Natural Science Foundation of Shandong Province,China(Grant No.ZR2021QE069).
文摘This study experimentally analyzes the nonlinear flow characteristics and channelization of fluid through rough-walled fractures during the shear process using a shear-flow-visualization apparatus.A series of fluid flow and visualization tests is performed on four transparent fracture specimens with various shear displacements of 1 mm,3 mm,5 mm,7 mm and 10 mm under a normal stress of 0.5 MPa.Four granite fractures with different roughnesses are selected and quantified using variogram fractal dimensions.The obtained results show that the critical Reynolds number tends to increase with increasing shear displacement but decrease with increasing roughness of fracture surface.The flow paths are more tortuous at the beginning of shear because of the wide distribution of small contact spots.As the shear displacement continues to increase,preferential flow paths are more distinctly observed due to the decrease in the number of contact spots caused by shear dilation;yet the area of single contacts in-creases.Based on the experimental results,an empirical mathematical equation is proposed to quantify the critical Reynolds number using the contact area ratio and fractal dimension.
