Evaluation and Promotion of the Service Capacity of Urban Public Open Spaces Based on Improving Accessibility:A Case Study of Shenyang City,China

The service capacity of urban public open spaces is an important indicator of the justness and soundness of the allocation of public space resources,such as parks and green spaces,in the process of urban development.Improving the service capacity of urban public open spaces is conductive to healthy,sustainable urban development.In this study,taking Shengyang City,China as a case study,a Gaussian-based two-step floating catchment area method(2 SFCA)is used to calculate an accessibility index and identify residential areas with a poor accessibility to urban public open spaces.Then,a particle swarm algorithm(PSA)is used to optimize the locations of new open space developments.Finally,the optimization results are verified using the analytic network process(ANP).The results show that the service capacity of public open spaces in the center of Shenyang City(covering six districts)is relatively low and exhibits an uneven spatial distribution.In the service scope of the existing urban public open spaces,the accessibility for 48.6%of the residential estates is moderately poor or poor.The layout is optimized when the number of optimization points is set to 8.These points are mainly located in old town areas such as the Tiexi,Huanggu,and Dadong districts.The optimization increases the green space area accessible by motor vehicles(60 min),bicycles(60 min),and walking(30 min)by 4.67%,5.38%,and 8.03%of the study area,respectively.Finally,green space planning recommendations are offered from two perspectives:spatial layout and transport system optimization.

Grand Opening of the Plenary Meeting on Publicity of the 2005 World Standard Day

Organized by the Standard Administration of China (SAC), the plenary meeting on publicity of the 2005 World Standards Day was held on October 14, 2005 at the Great Hall of People. Surrounding the theme of this year's World Standards Day - "Standards for a Safer World", the meeting made publicized the status of construction and implementation of the food safety and production safety standard system of our country,the result of clearance on national standards and the announcement of formal operation of the system for online free-of-charge access to the full text of national compulsory standards, and the system for online distribution and service of national standards. Attending the meeting were Li Changjiang, Director of AQSIQ, Li Chuanqing,Party Group Secretary of AQSIQ, Li Zhonghai, Director of SAC, high-ranking officers of relevant departments of the State Council, Chen Xiaohong, Vice-minister of Ministry of Health, Wang Xianzheng, Vice-director of the National General Bureau of Supervision and Administration on Production Safety, and representatives and experts from enterprises of various sectors with a total of over 300 people. The meeting was presided over by Zhang Yanhua, Standing Vice-director of SAC.

Evaluation Index System of Green Public Open Space Based on Internet of Things and Mental Health

With the emergence of the loT era,wireless sensor networks will be more and more widely used.In addition to collecting,transmitting and processing simple data such as humidity,temperature and density of the dome,they can also provide multimedia information services such as video and images.It enables more comprehensive and accurate environmental monitoring.Therefore,MSDs have a huge demand in military,daily,forestry,biomedicine and other fields.The intensive city model has obvious advantages in meeting people's diverse needs and comfortable life.Most obviously,it speeds up the rhythm of life for residents,thereby increasing efficiency and saving time.Starting from this aspect,this paper conducts a research on the evaluation index system of public built on the following areas of open space loT and mental health.In this paper,the GRNN neural network model is constructed,the mean condition is calculated,the density function can be estimated,the network output,and the schematic diagram of the generalized regression neural network is improved.Using the established system,the index in 2018 is selected as the base year,and after transformation,the standardized values of the past years are formed,which are substituted into the cells to form different matrices.The value of each cell is counted to obtain the subsystem coordination degree,and the global coordination degree is obtained through calculation.The evaluation results of ecological civilization construction and development in 2018 and 2019,2020 and 2021 were compared.The experimental data shows that compared with 2018,economic development will change from 1 to 2.000,social harmony will change from 1 to 2.480,ecological health will decrease to 0.850,environmental friendliness will decrease to 0.750,and comprehensive evaluation will decrease to 0.513.This shows that while the economy is developing this year,the construction of ecological civilization has been gradually carried out,and good results have been achieved.This reflects the effectiveness of the system.The subject of the evaluation index system of green public open space based on the Internet of Things and mental health has been well completed.

No.2 Vault of Qin Terra-Cotta Figures Open to the Public

In October 1994, another excavation site of the Qin terra-cotta figures of warriors and horses near Qin Shi Huang’s Tomb at the foot of Lishan, Lintong, Shaanxi Province was formally open to the public. This is the third vault that was excavated from March 1994 after the excavation of the No.1 and No.2 vaults 20 years ago.

Open Science and Data Science

Data Science(DS)as defined by Jim Gray is an emerging paradigm in all research areas to help finding non-obvious patterns of relevance in large distributed data collections.“Open Science by Design”(OSD),i.e.,making artefacts such as data,metadata,models,and algorithms available and re-usable to peers and beyond as early as possible,is a pre-requisite for a flourishing DS landscape.However,a few major aspects can be identified hampering a fast transition:(1)The classical“Open Science by Publication”(OSP)is not sufficient any longer since it serves different functions,leads to non-acceptable delays and is associated with high curation costs.Changing data lab practices towards OSD requires more fundamental changes than OSP.(2)The classical publication-oriented models for metrics,mainly informed by citations,will not work anymore since the roles of contributors are more difficult to assess and will often change,i.e.,other ways for assigning incentives and recognition need to be found.(3)The huge investments in developing DS skills and capacities by some global companies and strong countries is leading to imbalances and fears by different stakeholders hampering the acceptance of Open Science(OS).(4)Finally,OSD will depend on the availability of a global infrastructure fostering an integrated and interoperable data domain-“one data-domain”as George Strawn calls it-which is still not visible due to differences about the technological key pillars.OS therefore is a need for DS,but it will take much more time to implement it than we may have expected.