The secured access is studied in this paper for the network of the image remote sensing.Each sensor in this network encounters the information security when uploading information of the images wirelessly from the sens...The secured access is studied in this paper for the network of the image remote sensing.Each sensor in this network encounters the information security when uploading information of the images wirelessly from the sensor to the central collection point.In order to enhance the sensing quality for the remote uploading,the passive reflection surface technique is employed.If one eavesdropper that exists nearby this sensor is keeping on accessing the same networks,he may receive the same image from this sensor.Our goal in this paper is to improve the SNR of legitimate collection unit while cut down the SNR of the eavesdropper as much as possible by adaptively adjust the uploading power from this sensor to enhance the security of the remote sensing images.In order to achieve this goal,the secured energy efficiency performance is theoretically analyzed with respect to the number of the passive reflection elements by calculating the instantaneous performance over the channel fading coefficients.Based on this theoretical result,the secured access is formulated as a mathematical optimization problem by adjusting the sensor uploading power as the unknown variables with the objective of the energy efficiency maximization while satisfying any required maximum data rate of the eavesdropper sensor.Finally,the analytical expression is theoretically derived for the optimum uploading power.Numerical simulations verify the design approach.展开更多
Both practice and research of accessible design in China are still in the initial stage,while the regulations and standardization of accessibility is taking shape.Under the framework of engineering standards based on ...Both practice and research of accessible design in China are still in the initial stage,while the regulations and standardization of accessibility is taking shape.Under the framework of engineering standards based on instrumental rationality,to present the core value of humanism and to define the limitations of universal design in the standards are the key issues worth discussing continuously.By comparing the standards of China and abroad,this paper attempts to clarify the approaches for compiling the Accessibility Design Standards for Shenzhen.At the same time,it provides materials for discussion by showing the difficulties and assumptions during the compilation.展开更多
As a consequence of developing technology, various medical developments and environmental factors, the population of elderly people has been rising. Future predictions show a rising trend for designing for the elderly...As a consequence of developing technology, various medical developments and environmental factors, the population of elderly people has been rising. Future predictions show a rising trend for designing for the elderly and. In order for seniors to be able to appear in community life, to be self-sufficient and live their lives independently, supportive environments are required. Being able to sustain seniors＇ lives has to be seen as a civic right and architectural design should be considered as a tool to get these rights. As linked to everyday living, homes should be a starting point to get these rights. Being in the core of everyday activities, the spaces in dwellings should meet life-span design criteria. Fundamental principles lying under the aspects of design, dimensions, details, colors and symbols of supportive environments should not be affected from generation gap and senium and should rather aim at this user group. These fundamentals can briefly be listed as, change as less as possible, design for self-sufficiency, communication and socialization. In the paper, the focus is on these fundamental design principles for residential spaces, together with the research of reflections of factors, affecting health, security and mobility deriving from mobility disabilities, perception and memory weakening, specifically to bathroom design.展开更多
A projection of the Canadian population shows that in 2024 one in five Canadians will be over 65 years old. This shift forces designers to consider the entire lifetime of occupants during the design of new buildings. ...A projection of the Canadian population shows that in 2024 one in five Canadians will be over 65 years old. This shift forces designers to consider the entire lifetime of occupants during the design of new buildings. Universal Design (UD), which is a design that accommodates all people to the greatest extent possible and aging in place design that is deeply rooted in the principles of UD, aim to house people irrespective of their age, ability, and chronic health conditions. Building Information Modeling (BIM) significantly helps advance the development of the Architecture, Engineering, and Construction (AEC) industry in a more collaborative and automated way. Integrating BIM and UD allows designers to incorporate UD standards easily and efficiently at the conceptual design stage of buildings by using the functionalities and capabilities of BIM tools. Therefore, this study presents the development of an automated computer model to facilitate the adoption of UD standards and processes. The novelty highlighted in this model resides in the creation of an automated method that employs a newly created plug-in and databases to assist designers to incorporate UD standards at the conceptual stage in a timely and cost-effective manner. Furthermore, the study introduces the methodology consisting of collecting, categorizing, and storing data from various universal design and accessible design guidelines in the developed databases and developing new plug-ins in BIM tool to link the developed databases in order to automate the process of retrieving necessary information and components to help designers and owners select optimal design alternatives based on their predefined criteria.展开更多
Bus stops are a critical component of urban infrastructure in modern cities.However,there is a notable research gap regarding the accessibility of bus stop facilities for visually impaired passengers.Using the L Area ...Bus stops are a critical component of urban infrastructure in modern cities.However,there is a notable research gap regarding the accessibility of bus stop facilities for visually impaired passengers.Using the L Area in Shanghai as a case study,research findings reveal significant deficiencies in both the long-distance recognition and accessible facilities of bus stops within the“15-minute community-life circle.”Using the Kano model,this study classifies and prioritizes the needs for visually impaired passengers:large-font bus stop sign is a must-be need;audio announcements for bus arrivals are a one-dimensional need;audio announcements for the bus stop location,eliminating the vertical gap between the bus floor and the platform,and establishing an accessible boarding area are attractive needs.The study proposes design strategies for bus stop facilities,including a phased improvement approach for different bus stop types,and the embodied technology-supported assistive device-Smart Canes.This research not only responds to the global academic discourse on inclusive cities,but also contributes to promoting inclusive urban development in practice.展开更多
基金supported in part by Jiangsu Province High Level“333”Program (0401206044)National Natural Science Foundation of China (61801243,62072255)+4 种基金Program for Scientific Research Foundation for Talented Scholars of Jinling Institute of Technology (JIT-B-202031)University Incubator Foundation of Jinling Institute of Technology (JIT-FHXM-202110)Open Project of Fujian Provincial Key Lab.of Network Security and Cryptology (NSCL-KF2021-02)Open Foundation of National Railway Intelligence Transportation System Engineering Tech.Research Center (RITS2021KF02)China Postdoctoral Science Foundation (2019M651914)。
文摘The secured access is studied in this paper for the network of the image remote sensing.Each sensor in this network encounters the information security when uploading information of the images wirelessly from the sensor to the central collection point.In order to enhance the sensing quality for the remote uploading,the passive reflection surface technique is employed.If one eavesdropper that exists nearby this sensor is keeping on accessing the same networks,he may receive the same image from this sensor.Our goal in this paper is to improve the SNR of legitimate collection unit while cut down the SNR of the eavesdropper as much as possible by adaptively adjust the uploading power from this sensor to enhance the security of the remote sensing images.In order to achieve this goal,the secured energy efficiency performance is theoretically analyzed with respect to the number of the passive reflection elements by calculating the instantaneous performance over the channel fading coefficients.Based on this theoretical result,the secured access is formulated as a mathematical optimization problem by adjusting the sensor uploading power as the unknown variables with the objective of the energy efficiency maximization while satisfying any required maximum data rate of the eavesdropper sensor.Finally,the analytical expression is theoretically derived for the optimum uploading power.Numerical simulations verify the design approach.
基金supported by the General Program of Shenzhen Academic Institutions Development Supporting Project(No.20200810191652001)。
文摘Both practice and research of accessible design in China are still in the initial stage,while the regulations and standardization of accessibility is taking shape.Under the framework of engineering standards based on instrumental rationality,to present the core value of humanism and to define the limitations of universal design in the standards are the key issues worth discussing continuously.By comparing the standards of China and abroad,this paper attempts to clarify the approaches for compiling the Accessibility Design Standards for Shenzhen.At the same time,it provides materials for discussion by showing the difficulties and assumptions during the compilation.
文摘As a consequence of developing technology, various medical developments and environmental factors, the population of elderly people has been rising. Future predictions show a rising trend for designing for the elderly and. In order for seniors to be able to appear in community life, to be self-sufficient and live their lives independently, supportive environments are required. Being able to sustain seniors＇ lives has to be seen as a civic right and architectural design should be considered as a tool to get these rights. As linked to everyday living, homes should be a starting point to get these rights. Being in the core of everyday activities, the spaces in dwellings should meet life-span design criteria. Fundamental principles lying under the aspects of design, dimensions, details, colors and symbols of supportive environments should not be affected from generation gap and senium and should rather aim at this user group. These fundamentals can briefly be listed as, change as less as possible, design for self-sufficiency, communication and socialization. In the paper, the focus is on these fundamental design principles for residential spaces, together with the research of reflections of factors, affecting health, security and mobility deriving from mobility disabilities, perception and memory weakening, specifically to bathroom design.
文摘A projection of the Canadian population shows that in 2024 one in five Canadians will be over 65 years old. This shift forces designers to consider the entire lifetime of occupants during the design of new buildings. Universal Design (UD), which is a design that accommodates all people to the greatest extent possible and aging in place design that is deeply rooted in the principles of UD, aim to house people irrespective of their age, ability, and chronic health conditions. Building Information Modeling (BIM) significantly helps advance the development of the Architecture, Engineering, and Construction (AEC) industry in a more collaborative and automated way. Integrating BIM and UD allows designers to incorporate UD standards easily and efficiently at the conceptual design stage of buildings by using the functionalities and capabilities of BIM tools. Therefore, this study presents the development of an automated computer model to facilitate the adoption of UD standards and processes. The novelty highlighted in this model resides in the creation of an automated method that employs a newly created plug-in and databases to assist designers to incorporate UD standards at the conceptual stage in a timely and cost-effective manner. Furthermore, the study introduces the methodology consisting of collecting, categorizing, and storing data from various universal design and accessible design guidelines in the developed databases and developing new plug-ins in BIM tool to link the developed databases in order to automate the process of retrieving necessary information and components to help designers and owners select optimal design alternatives based on their predefined criteria.
文摘Bus stops are a critical component of urban infrastructure in modern cities.However,there is a notable research gap regarding the accessibility of bus stop facilities for visually impaired passengers.Using the L Area in Shanghai as a case study,research findings reveal significant deficiencies in both the long-distance recognition and accessible facilities of bus stops within the“15-minute community-life circle.”Using the Kano model,this study classifies and prioritizes the needs for visually impaired passengers:large-font bus stop sign is a must-be need;audio announcements for bus arrivals are a one-dimensional need;audio announcements for the bus stop location,eliminating the vertical gap between the bus floor and the platform,and establishing an accessible boarding area are attractive needs.The study proposes design strategies for bus stop facilities,including a phased improvement approach for different bus stop types,and the embodied technology-supported assistive device-Smart Canes.This research not only responds to the global academic discourse on inclusive cities,but also contributes to promoting inclusive urban development in practice.
