Agricultural sightseeing in a new tourism pattern integrates ecological tourism functions into ecological agriculture and rural cultures. Handan City is located in southern Henan Province with excellent geographical c...Agricultural sightseeing in a new tourism pattern integrates ecological tourism functions into ecological agriculture and rural cultures. Handan City is located in southern Henan Province with excellent geographical conditions. In 2006-2008, agricultural sightseeing has achieved primary development in Handan City, and gradually become an indispensable component of the tourism market in this city. Promoting agricultural sightseeing in Handan City as well as the upgrading of its agriculture will be enhanced, which can be transformed from traditional and unitary function into the comprehensive functions of production, ecology, tourism, culture and education, thus is favorable for promoting the further development of tourism industry, enriching tourism products, realizing the sustainable development of agricultural tourism. Besides, surplus rural labors will be offered more opportunities, and industrial structure in rural areas will also be adjusted properly. Through dividing agricultural sightseeing in Handan City into the eco-agricultural sightseeing zone in the west, metropolis agricultural sightseeing zone in the middle, and economic agricultural sightseeing in the east, the authors clearly defined their ranges, orientation of typical functions, dominant development modes as well as projects, so as to figure out the reasonable development pattern for agricultural sightseeing in Handan City, specify its development context, and provide theoretical basis for the future development of agricultural sightseeing in this city.展开更多
In this work,an H_(∞)/passive-based secure synchronization control problem is investigated for continuous-time semi-Markov neural networks subject to hybrid attacks,in which hybrid attacks are the combinations of den...In this work,an H_(∞)/passive-based secure synchronization control problem is investigated for continuous-time semi-Markov neural networks subject to hybrid attacks,in which hybrid attacks are the combinations of denial-of-service attacks and deception attacks,and they are described by two groups of independent Bernoulli distributions.On this foundation,via the Lyapunov stability theory and linear matrix inequality technology,the H_(∞)/passive-based performance criteria for semi-Markov jump neural networks are obtained.Additionally,an activation function division approach for neural networks is adopted to further reduce the conservatism of the criteria.Finally,a simulation example is provided to verify the validity and feasibility of the proposed method.展开更多
This paper uses the data from the post-1994 tax reform in China to investigate the vertical and spatial structures of sub-provincial fiscal expenditure decentralization(SPFED)in China.The study shows that,on the whole...This paper uses the data from the post-1994 tax reform in China to investigate the vertical and spatial structures of sub-provincial fiscal expenditure decentralization(SPFED)in China.The study shows that,on the whole,SPFED tends to be gradually biased toward the county level,but inter-provincial differences are obvious,and the provincial centralization is more obvious in less economically developed regions.In terms of expenditure items,the province level enjoys a relatively higher level of economic expenditure decentralization(EED),and the county level enjoys a higher level of social expenditure decentralization(SED).In terms of internal structure,the difference in the level of EED shared by the province,prefecture and county levels is relatively smaller and the difference in the level of SED is relatively larger.In terms of spatial structure,in less developed regions,the province level enjoys a higher EED but a lower SED;in developed regions,the prefecture and county levels enjoy a higher EED but the prefecture level enjoys a relatively lower SED.These findings can provide empirical evidence for the reform of the division of power and expenditure responsibility,as well as the governance of sub-provincial governments.展开更多
基金Supported by Natural Science Project Instructed by Handan Municipal Scientific and Technological Research and Development Program(0723201151)~~
文摘Agricultural sightseeing in a new tourism pattern integrates ecological tourism functions into ecological agriculture and rural cultures. Handan City is located in southern Henan Province with excellent geographical conditions. In 2006-2008, agricultural sightseeing has achieved primary development in Handan City, and gradually become an indispensable component of the tourism market in this city. Promoting agricultural sightseeing in Handan City as well as the upgrading of its agriculture will be enhanced, which can be transformed from traditional and unitary function into the comprehensive functions of production, ecology, tourism, culture and education, thus is favorable for promoting the further development of tourism industry, enriching tourism products, realizing the sustainable development of agricultural tourism. Besides, surplus rural labors will be offered more opportunities, and industrial structure in rural areas will also be adjusted properly. Through dividing agricultural sightseeing in Handan City into the eco-agricultural sightseeing zone in the west, metropolis agricultural sightseeing zone in the middle, and economic agricultural sightseeing in the east, the authors clearly defined their ranges, orientation of typical functions, dominant development modes as well as projects, so as to figure out the reasonable development pattern for agricultural sightseeing in Handan City, specify its development context, and provide theoretical basis for the future development of agricultural sightseeing in this city.
基金supported by the National Natural Science Foundation of China under Grant Nos.62103005,62173001,and 62273006the Natural Science Foundation of Anhui Provincial Natural Science Foundation under Grant No.2108085QF276+3 种基金the Natural Science Foundation for Distinguished Young Scholars of Higher Education Institutions of Anhui Province under Grant No.2022AH020034the Natural Science Foundation for Excellent Young Scholars of Higher Education Institutions of Anhui Province under Grant No.2022AH030049,2023AH030030,2022AH030049the Major Technologies Research and Development Special Program of Anhui Province under Grant No.202003a05020001the Key Research and Development Projects of Anhui Province under Grant No.202104a05020015。
文摘In this work,an H_(∞)/passive-based secure synchronization control problem is investigated for continuous-time semi-Markov neural networks subject to hybrid attacks,in which hybrid attacks are the combinations of denial-of-service attacks and deception attacks,and they are described by two groups of independent Bernoulli distributions.On this foundation,via the Lyapunov stability theory and linear matrix inequality technology,the H_(∞)/passive-based performance criteria for semi-Markov jump neural networks are obtained.Additionally,an activation function division approach for neural networks is adopted to further reduce the conservatism of the criteria.Finally,a simulation example is provided to verify the validity and feasibility of the proposed method.
文摘This paper uses the data from the post-1994 tax reform in China to investigate the vertical and spatial structures of sub-provincial fiscal expenditure decentralization(SPFED)in China.The study shows that,on the whole,SPFED tends to be gradually biased toward the county level,but inter-provincial differences are obvious,and the provincial centralization is more obvious in less economically developed regions.In terms of expenditure items,the province level enjoys a relatively higher level of economic expenditure decentralization(EED),and the county level enjoys a higher level of social expenditure decentralization(SED).In terms of internal structure,the difference in the level of EED shared by the province,prefecture and county levels is relatively smaller and the difference in the level of SED is relatively larger.In terms of spatial structure,in less developed regions,the province level enjoys a higher EED but a lower SED;in developed regions,the prefecture and county levels enjoy a higher EED but the prefecture level enjoys a relatively lower SED.These findings can provide empirical evidence for the reform of the division of power and expenditure responsibility,as well as the governance of sub-provincial governments.
