Delineating life circles is an essential prerequisite for urban community life circle planning. Recent studies combined the environmental contexts with residents’ global positioning system(GPS) data to delineate the ...Delineating life circles is an essential prerequisite for urban community life circle planning. Recent studies combined the environmental contexts with residents’ global positioning system(GPS) data to delineate the life circles. This method, however, is constrained by GPS data, and it can only be applied in the GPS surveyed communities. To address this limitation, this study developed a generalizable delineation method without the constraint of behavioral data. According to previous research, the community life circle consists of the walking-accessible range and internal structure. The core task to develop the generalizable method was to estimate the spatiotemporal behavioral demand for each plot of land to acquire the internal structure of the life circle, as the range can be delineated primarily based on environmental data. Therefore, behavioral demand estimation models were established through logistic regression and machine learning techniques, including decision trees and ensemble learning. The model with the lowest error rate was chosen as the final estimation model for each type of land. Finally, we used a community without GPS data as an example to demonstrate the effectiveness of the estimation models and delineation method. This article extends the existing literature by introducing spatiotemporal behavioral demand estimation models, which learn the relationships between environmental contexts, population composition and the existing delineated results based on GPS data to delineate the internal structure of the community life circle without employing behavioral data. Furthermore, the proposed method and delineation results also contributes to facilities adjustments and location selections in life circle planning, people-oriented transformation in urban planning, and activity space estimation of the population in evaluating and improving the urban policies.展开更多
The life circle and bionomics ofLymantria dispar was studied from the May to the July of 1997 in Tulihe Forestry Enterprise of Inner Mongolia. The results showed thatL. dispar has one generation in a year, larvae over...The life circle and bionomics ofLymantria dispar was studied from the May to the July of 1997 in Tulihe Forestry Enterprise of Inner Mongolia. The results showed thatL. dispar has one generation in a year, larvae overwinters in eggs, and last 50 days to grow up. From the completing of larvae period to the appearing of adults lasts 11 days. The study made a basis for the period forecasting of L.dispar in Inner Mongolia.展开更多
In recent years,the compact development of high-density cities has sparked ongoing interest in healthy urban environments and public well-being.This study examines the relationship between cycling behaviors and the bu...In recent years,the compact development of high-density cities has sparked ongoing interest in healthy urban environments and public well-being.This study examines the relationship between cycling behaviors and the built environment of streets in Tiantongyuan Community,a typical high-density area in Beijing,China.By observing street spaces and summarizing residents’travel modes and behaviors,the study evaluates the impact of street design on cycling habits.In order to reveal the riding behavior characteristics of residents in different time periods and different street spaces,tools such as track recording APPs and the Gopro Motion Camera are employed to collect street view pictures and riding track data comprehensively,analyzing the various travel purposes of residents in Tiantongyuan community and the riding OD activity tracks of the main entrances and exits of the community.Meanwhile,by conducting the questionnaire survey of residents’travel demands and OD data of Baidu,and utilizing geographic information system(GIS)for data visualization,this study further investigates the distribution characteristics of cycling hotspots,cycling paths and cycling space,accurately identifies the cycling life circle of this community based on the spatial and temporal scales,and further puts forward the optimization strategy of the cycling network.Some cycling-friendly street space optimization strategies are suggested to deeply analyze the mechanism of the built environment of street space in high-density communities on the cycling activities and health of urban residents,with a view to provide accurate data support for the renewal of street cycling space.展开更多
China’s urbanization level has reached a new stage.Urban development has changed from incremental expansion to inventory renewal.The demand of residents for a good living environment and compact living space is incre...China’s urbanization level has reached a new stage.Urban development has changed from incremental expansion to inventory renewal.The demand of residents for a good living environment and compact living space is increasing.How to realize the intensive development of land based on human needs has become an urgent problem to be solved in urban development.Based on the planning concepts of inventory planning and life circle,this study made the renewal and transformation of old urban area of Medical Saint Temple in Nanyang City and analyzed the current spatial characteristic elements.Optimize the layout of public space in combination with residents’living needs,improve the functions and quality of urban areas,and build a healthy and sustainable development model to improve the living environment of the community and provide reference for the future urban renewal and transformation.展开更多
According to the differences between operation and correlationship by both sides of the takeover in the market for corporate control, the takeover can be divided into three types--transverse takeover, longitudinal tak...According to the differences between operation and correlationship by both sides of the takeover in the market for corporate control, the takeover can be divided into three types--transverse takeover, longitudinal takeover and mixed takeover. Meanwhile, due to the activities of takeover taken by the companies in the different trade life circles adopting different takeover types, so their performances are different. Seeing about this relationship, you can effectively inspect the efficiency of the market for corporate control. Adopting298 stylebook data from the market for corporate control in China, and through empirical analyzing, it can see that because of the existing of the stock holding, the efficiency of the market for corporate control in China is not very high. The government tempts to adjust the industrial structure through merger and acquisition （M＆A）, but it urged the aim of state-owned economy forward strategic transfer difficult to come true. To solve the contradiction of ＂setting up of the stock holding＂ comes to no time to delay. ＇展开更多
Addressing the key challenges of ambiguous spatial boundaries of 15-minute community life circles and inadequate coordination between facility supply and demand,this study critically revisits classical theoretical app...Addressing the key challenges of ambiguous spatial boundaries of 15-minute community life circles and inadequate coordination between facility supply and demand,this study critically revisits classical theoretical approaches and proposes a spatial governance model for community life circles,along with a three-dimensional integrated framework for facility optimization.Based on this,the study develops a comprehensive technical approach for spatial delineation and facility optimization,comprising four key steps:(1)identifying existing facility service areas,(2)delineating future community life circles,(3)conducting cluster analysis of supply-demand balance,and(4)formulating optimization strategies.It incorporates practical factors such as population distribution and land supply potential,while remaining closely aligned with subdistrict and community administrative boundaries,to provide methodological insights and complementary perspectives for optimizing community life circle governance in China.Taking the central urban area of Laiyang,Shandong Province,as a case study,the empirical analysis validates the spatial governance model by revealing the polycentric distribution of existing facilities and their overlapping service areas.The findings highlight a dual deficiency of public facilities in both the peripheral areas of the old town and newly developed areas,which is a critical barrier to establishing 15-minute community life circles in Laiyang.Finally,the study proposes classification-based governance optimization strategies for community life circle planning in Laiyang,while also providing a practical governance model applicable to other small-and medium-sized cities.展开更多
In this paper, the degrading regularities for quipment reliability and performance are discussed. Based on the isodegrading model, the characteristics of the cost and benefit in the equipment life circle are studied. ...In this paper, the degrading regularities for quipment reliability and performance are discussed. Based on the isodegrading model, the characteristics of the cost and benefit in the equipment life circle are studied. Using the principle of getting maximum Net Annual Value(NAV), a valid method for forecasting economic life circle is proposed.展开更多
Objectives: This study was designed to validate, test and translate a newly developed assessment tool for health coaches to assess client’s satisfaction rates of the Circle of Life (CoL), as a guide for weight manage...Objectives: This study was designed to validate, test and translate a newly developed assessment tool for health coaches to assess client’s satisfaction rates of the Circle of Life (CoL), as a guide for weight management and also to monitor clients’ health and wellbeing improvements. This includes development of the assessment content, content validity, translating and pretesting the tool among potential clients. Method: 18 participants enrolled in a telenutrition weight loss program was and received a hypocaloric diet that was supported with monthly telemonitoring and health coaching sessions remotely for 6 months. Thus, we developed content of the assessment tool and created a rating scale of three levels of satisfaction (completely satisfied, slightly satisfied and not satisfied). The process of validation included content and language validity by experts in the field and language. Results: High scores according to the content validity rating were seen on both English and language versions of the CoL assessment tool by experts. Followed by a pre-testing process by participants, which showed reliability and consistency of the (CoL) variables using a multilevel analysis seeks across all individuals and all individuals had similar correlational pattern. Conclusions: The new (CoL) satisfaction scale have demonstrated a good capacity for identifying lifestyle factors associated with participants weight, which is a useful tool for integrative nutrition practice in weight management interventions. Future studies must be directed towards using the tool in assessing different populations and cultures to understand the main root of obesity in relation to behavior and day to day life factors.展开更多
The construction of rural life circle has an essential impact on the change of rural social space.Analyzing the adaptation relationship between the two can be a new content in the study of “physical-social” space.Us...The construction of rural life circle has an essential impact on the change of rural social space.Analyzing the adaptation relationship between the two can be a new content in the study of “physical-social” space.Using social behavior as a link,we construct a logical relationship framework between rural life circle and social space.Based on the survey data of Baijia village in the loess hilly region,this paper analyzes the characteristics and adaptability of the two and discusses preliminary ideas of life circle reorganization and social space reconstruction.The study results are as follows:(1) Based on the location of four types of service facilities and the travel mode of villagers,two life circles of 15 min and 25 min have been formed in Baijia village.The rural social spaces such as communicative behavior space,health seeking behavior space,leisure behavior space,and consumption behavior space show a specific concentric circle structure and unique hierarchical structure.(2) The analysis of the adaptation between them shows that the 15 min life circle in Baijia village has a high level of adaptation to communicative and leisure behavior spaces.It plays a positive feedback role in the construction of social space.However,it has a low level of adaptability to the space of health seeking and consumption behavior spaces and has a negative feedback effect on the construction of social space.The 25 min life circle is the opposite.(3) The reorganization of facility layout,hierarchical structure,and service functions in the village life circle will lead to changes in the range,frequency,and purpose of villagers’ behavioral activities,resulting in a new social spatial pattern.These findings are important for formulating village development and construction plans,improving the settlement habitat,and reconstructing the order of social life.展开更多
The development of the Guangdong-Hong Kong-Macao Greater Bay Area is an important part of China’s national strategy in the new era.This paper reviews the process of cross-border planning collaboration in this area,fr...The development of the Guangdong-Hong Kong-Macao Greater Bay Area is an important part of China’s national strategy in the new era.This paper reviews the process of cross-border planning collaboration in this area,from functional division to institutional coordination.However,this process is still constrained by problems such as having few platforms and channels of collaboration,too much reliance on the provincial government,limited measures of collaboration,and weak coordination on the issues concerning core interests.It argues that the orientation should be building an open collaboration framework with multi-party participation and the specific strategies should include establishing a multi-level and multi-party planning collaboration framework,promoting the planning integration of three metropolitan areas,co-building a unified international quality life circle,promoting the co-building and co-sharing of strategic areas,and exploring diversified measures of planning collaboration.展开更多
基金Under the auspices of the National Natural Science Foundation of China(No.41571144)。
文摘Delineating life circles is an essential prerequisite for urban community life circle planning. Recent studies combined the environmental contexts with residents’ global positioning system(GPS) data to delineate the life circles. This method, however, is constrained by GPS data, and it can only be applied in the GPS surveyed communities. To address this limitation, this study developed a generalizable delineation method without the constraint of behavioral data. According to previous research, the community life circle consists of the walking-accessible range and internal structure. The core task to develop the generalizable method was to estimate the spatiotemporal behavioral demand for each plot of land to acquire the internal structure of the life circle, as the range can be delineated primarily based on environmental data. Therefore, behavioral demand estimation models were established through logistic regression and machine learning techniques, including decision trees and ensemble learning. The model with the lowest error rate was chosen as the final estimation model for each type of land. Finally, we used a community without GPS data as an example to demonstrate the effectiveness of the estimation models and delineation method. This article extends the existing literature by introducing spatiotemporal behavioral demand estimation models, which learn the relationships between environmental contexts, population composition and the existing delineated results based on GPS data to delineate the internal structure of the community life circle without employing behavioral data. Furthermore, the proposed method and delineation results also contributes to facilities adjustments and location selections in life circle planning, people-oriented transformation in urban planning, and activity space estimation of the population in evaluating and improving the urban policies.
文摘The life circle and bionomics ofLymantria dispar was studied from the May to the July of 1997 in Tulihe Forestry Enterprise of Inner Mongolia. The results showed thatL. dispar has one generation in a year, larvae overwinters in eggs, and last 50 days to grow up. From the completing of larvae period to the appearing of adults lasts 11 days. The study made a basis for the period forecasting of L.dispar in Inner Mongolia.
文摘In recent years,the compact development of high-density cities has sparked ongoing interest in healthy urban environments and public well-being.This study examines the relationship between cycling behaviors and the built environment of streets in Tiantongyuan Community,a typical high-density area in Beijing,China.By observing street spaces and summarizing residents’travel modes and behaviors,the study evaluates the impact of street design on cycling habits.In order to reveal the riding behavior characteristics of residents in different time periods and different street spaces,tools such as track recording APPs and the Gopro Motion Camera are employed to collect street view pictures and riding track data comprehensively,analyzing the various travel purposes of residents in Tiantongyuan community and the riding OD activity tracks of the main entrances and exits of the community.Meanwhile,by conducting the questionnaire survey of residents’travel demands and OD data of Baidu,and utilizing geographic information system(GIS)for data visualization,this study further investigates the distribution characteristics of cycling hotspots,cycling paths and cycling space,accurately identifies the cycling life circle of this community based on the spatial and temporal scales,and further puts forward the optimization strategy of the cycling network.Some cycling-friendly street space optimization strategies are suggested to deeply analyze the mechanism of the built environment of street space in high-density communities on the cycling activities and health of urban residents,with a view to provide accurate data support for the renewal of street cycling space.
基金Sponsored by Social Science Fund Project of Hebei Province(HB19S039)Training Project of School of Architecture and Art,Hebei University of Engineering(2020-KJZD-001).
文摘China’s urbanization level has reached a new stage.Urban development has changed from incremental expansion to inventory renewal.The demand of residents for a good living environment and compact living space is increasing.How to realize the intensive development of land based on human needs has become an urgent problem to be solved in urban development.Based on the planning concepts of inventory planning and life circle,this study made the renewal and transformation of old urban area of Medical Saint Temple in Nanyang City and analyzed the current spatial characteristic elements.Optimize the layout of public space in combination with residents’living needs,improve the functions and quality of urban areas,and build a healthy and sustainable development model to improve the living environment of the community and provide reference for the future urban renewal and transformation.
文摘According to the differences between operation and correlationship by both sides of the takeover in the market for corporate control, the takeover can be divided into three types--transverse takeover, longitudinal takeover and mixed takeover. Meanwhile, due to the activities of takeover taken by the companies in the different trade life circles adopting different takeover types, so their performances are different. Seeing about this relationship, you can effectively inspect the efficiency of the market for corporate control. Adopting298 stylebook data from the market for corporate control in China, and through empirical analyzing, it can see that because of the existing of the stock holding, the efficiency of the market for corporate control in China is not very high. The government tempts to adjust the industrial structure through merger and acquisition （M＆A）, but it urged the aim of state-owned economy forward strategic transfer difficult to come true. To solve the contradiction of ＂setting up of the stock holding＂ comes to no time to delay. ＇
文摘Addressing the key challenges of ambiguous spatial boundaries of 15-minute community life circles and inadequate coordination between facility supply and demand,this study critically revisits classical theoretical approaches and proposes a spatial governance model for community life circles,along with a three-dimensional integrated framework for facility optimization.Based on this,the study develops a comprehensive technical approach for spatial delineation and facility optimization,comprising four key steps:(1)identifying existing facility service areas,(2)delineating future community life circles,(3)conducting cluster analysis of supply-demand balance,and(4)formulating optimization strategies.It incorporates practical factors such as population distribution and land supply potential,while remaining closely aligned with subdistrict and community administrative boundaries,to provide methodological insights and complementary perspectives for optimizing community life circle governance in China.Taking the central urban area of Laiyang,Shandong Province,as a case study,the empirical analysis validates the spatial governance model by revealing the polycentric distribution of existing facilities and their overlapping service areas.The findings highlight a dual deficiency of public facilities in both the peripheral areas of the old town and newly developed areas,which is a critical barrier to establishing 15-minute community life circles in Laiyang.Finally,the study proposes classification-based governance optimization strategies for community life circle planning in Laiyang,while also providing a practical governance model applicable to other small-and medium-sized cities.
文摘In this paper, the degrading regularities for quipment reliability and performance are discussed. Based on the isodegrading model, the characteristics of the cost and benefit in the equipment life circle are studied. Using the principle of getting maximum Net Annual Value(NAV), a valid method for forecasting economic life circle is proposed.
文摘Objectives: This study was designed to validate, test and translate a newly developed assessment tool for health coaches to assess client’s satisfaction rates of the Circle of Life (CoL), as a guide for weight management and also to monitor clients’ health and wellbeing improvements. This includes development of the assessment content, content validity, translating and pretesting the tool among potential clients. Method: 18 participants enrolled in a telenutrition weight loss program was and received a hypocaloric diet that was supported with monthly telemonitoring and health coaching sessions remotely for 6 months. Thus, we developed content of the assessment tool and created a rating scale of three levels of satisfaction (completely satisfied, slightly satisfied and not satisfied). The process of validation included content and language validity by experts in the field and language. Results: High scores according to the content validity rating were seen on both English and language versions of the CoL assessment tool by experts. Followed by a pre-testing process by participants, which showed reliability and consistency of the (CoL) variables using a multilevel analysis seeks across all individuals and all individuals had similar correlational pattern. Conclusions: The new (CoL) satisfaction scale have demonstrated a good capacity for identifying lifestyle factors associated with participants weight, which is a useful tool for integrative nutrition practice in weight management interventions. Future studies must be directed towards using the tool in assessing different populations and cultures to understand the main root of obesity in relation to behavior and day to day life factors.
基金National Natural Science Foundation of China,No.42271222,No.42201261Natural Science Foundation of Gansu Province,No.22JR5RA130+1 种基金Major Science&Technology Project of Gansu Province,No.22ZD6WA057Young Doctoral Fund of Department of Education of Gansu Province,No.2022QB-040。
文摘The construction of rural life circle has an essential impact on the change of rural social space.Analyzing the adaptation relationship between the two can be a new content in the study of “physical-social” space.Using social behavior as a link,we construct a logical relationship framework between rural life circle and social space.Based on the survey data of Baijia village in the loess hilly region,this paper analyzes the characteristics and adaptability of the two and discusses preliminary ideas of life circle reorganization and social space reconstruction.The study results are as follows:(1) Based on the location of four types of service facilities and the travel mode of villagers,two life circles of 15 min and 25 min have been formed in Baijia village.The rural social spaces such as communicative behavior space,health seeking behavior space,leisure behavior space,and consumption behavior space show a specific concentric circle structure and unique hierarchical structure.(2) The analysis of the adaptation between them shows that the 15 min life circle in Baijia village has a high level of adaptation to communicative and leisure behavior spaces.It plays a positive feedback role in the construction of social space.However,it has a low level of adaptability to the space of health seeking and consumption behavior spaces and has a negative feedback effect on the construction of social space.The 25 min life circle is the opposite.(3) The reorganization of facility layout,hierarchical structure,and service functions in the village life circle will lead to changes in the range,frequency,and purpose of villagers’ behavioral activities,resulting in a new social spatial pattern.These findings are important for formulating village development and construction plans,improving the settlement habitat,and reconstructing the order of social life.
文摘The development of the Guangdong-Hong Kong-Macao Greater Bay Area is an important part of China’s national strategy in the new era.This paper reviews the process of cross-border planning collaboration in this area,from functional division to institutional coordination.However,this process is still constrained by problems such as having few platforms and channels of collaboration,too much reliance on the provincial government,limited measures of collaboration,and weak coordination on the issues concerning core interests.It argues that the orientation should be building an open collaboration framework with multi-party participation and the specific strategies should include establishing a multi-level and multi-party planning collaboration framework,promoting the planning integration of three metropolitan areas,co-building a unified international quality life circle,promoting the co-building and co-sharing of strategic areas,and exploring diversified measures of planning collaboration.
