Objective:To explore the obstructive factors in the behavior of medical staff during the implementation of respiratory rehabilitation process,and to provide a basis for the rehabilitation management intervention of CO...Objective:To explore the obstructive factors in the behavior of medical staff during the implementation of respiratory rehabilitation process,and to provide a basis for the rehabilitation management intervention of COPD.Methods:A descriptive nature research method was adopted.An interview outline was formulated based on the theoretical domain framework.From October to December 2024,15 medical staff from the respiratory department of a tertiary hospital in Shaanxi Province were selected for semi-structured interviews.The interview data were analyzed using the Colaizzi 7-step analysis method.Result:The analysis of this study found that the obstructive factors for medical staff to implement respiratory rehabilitation include five theoretical domains.The problems are respectively the lack of knowledge about respiratory rehabilitation and insufficient training intensity,the insufficient self-recognition of implementing respiratory rehabilitation,the low awareness rate of patients and the low cooperation degree,the insufficient provision of instruments and facilities,the lack of rehabilitation training venues and respiratory rehabilitation clinics,and the lack of scientific and standardized respiratory rehabilitation management processes.Conclusion:There are many obstructive factors affecting the implementation of respiratory rehabilitation by medical staff.Clinical managers should take corresponding measures,continuously improve the rehabilitation management strategies for COPD,and promote the clinical application of the best evidence for respiratory rehabilitation.展开更多
In the paper, theoretical framework of Circular Agricultural Science and Technology Park planning was constructed based on circular agriculture, modern agriculture, garden landscape and management of agriculture SciTe...In the paper, theoretical framework of Circular Agricultural Science and Technology Park planning was constructed based on circular agriculture, modern agriculture, garden landscape and management of agriculture SciTech park, and the concerning meaning and characteristics were introduced, providing theoretical bases and guidance for circular agriculture SciTech park.展开更多
Atmospheric chemistry research has been growing rapidly in China in the last 25 years since the concept of the“air pollution complex”was first proposed by Professor Xiaoyan TANG in 1997.For papers published in 2021 ...Atmospheric chemistry research has been growing rapidly in China in the last 25 years since the concept of the“air pollution complex”was first proposed by Professor Xiaoyan TANG in 1997.For papers published in 2021 on air pollution(only papers included in the Web of Science Core Collection database were considered),more than 24000 papers were authored or co-authored by scientists working in China.In this paper,we review a limited number of representative and significant studies on atmospheric chemistry in China in the last few years,including studies on(1)sources and emission inventories,(2)atmospheric chemical processes,(3)interactions of air pollution with meteorology,weather and climate,(4)interactions between the biosphere and atmosphere,and(5)data assimilation.The intention was not to provide a complete review of all progress made in the last few years,but rather to serve as a starting point for learning more about atmospheric chemistry research in China.The advances reviewed in this paper have enabled a theoretical framework for the air pollution complex to be established,provided robust scientific support to highly successful air pollution control policies in China,and created great opportunities in education,training,and career development for many graduate students and young scientists.This paper further highlights that developing and low-income countries that are heavily affected by air pollution can benefit from these research advances,whilst at the same time acknowledging that many challenges and opportunities still remain in atmospheric chemistry research in China,to hopefully be addressed over the next few decades.展开更多
Background:Since the completion of the Human Genome Project,health science has been strongly influenced by the advances in genetics and genomics.However,the progress of embracing genetics and genomics into nursing dis...Background:Since the completion of the Human Genome Project,health science has been strongly influenced by the advances in genetics and genomics.However,the progress of embracing genetics and genomics into nursing discipline is limited.One of the main barriers is lack of understanding on the relevancy of genetics and genomics to nursing discipline.Objectives:This paper aims to synthesize and develop a theoretical framework for the interaction of nursing discipline with genetics and genomics.Methods:Through content analysis and constant comparative method,a theoretical framework was developed from synthesis of the studies regarding nursing and genetics/genomics indexed in multiple English and Chinese databases.Results:Four main theoretical statements were constructed in the framework:1)There are three ways to show how genetics and genomics can influence nursing discipline:a new specialty,new technologies and a new lens;2)The significant contribution of nursing discipline to genetics and genomics lies in how nurses could focus on the association between human responses and genes and how nurses could advocate for their clients in the genetic and genomic era;3)A paradigm shift occurs after a constant interaction of nursing discipline with genetics and genomics;4)Implementation strategies could be used to facilitate the integration of genetics and genomics to nursing discipline and advance the paradigm shift.Conclusions:The framework will help to understand the relationship between nursing discipline and genetics and genomics and implicate the future studies integrating genetics and genomic science into nursing discipline.展开更多
Thermally activated delayed fluorescence(TADF)molecules have outstanding potential for applications in organic light-emitting diodes(OLEDs).Due to the lack of systematic studies on the correlation between molecular st...Thermally activated delayed fluorescence(TADF)molecules have outstanding potential for applications in organic light-emitting diodes(OLEDs).Due to the lack of systematic studies on the correlation between molecular structure and luminescence properties,TADF molecules are far from meeting the needs of practical applications in terms of variety and number.In this paper,three twisted TADF molecules are studied and their photophysical properties are theoretically predicted based on the thermal vibrational correlation function method combined with multiscale calculations.The results show that all the molecules exhibit fast reverse intersystem crossing(RISC)rates(kRISC),predicting their TADF luminescence properties.In addition,the binding of DHPAzSi as the donor unit with different acceptors can change the dihedral angle between the ground and excited states,and the planarity of the acceptors is positively correlated with the reorganization energy,a property that has a strong influence on the non-radiative process.Furthermore,a decrease in the energy of the molecular charge transfer state and an increase in the kRISC were observed in the films.This study not only provides a reliable explanation for the observed experimental results,but also offers valuable insights that can guide the design of future TADF molecules.展开更多
Urban-rural integration is an advanced form resulting from the future evolution of urban-rural relationships.Nevertheless,little research has explored whether urban and rural areas can move from dual segmentation to i...Urban-rural integration is an advanced form resulting from the future evolution of urban-rural relationships.Nevertheless,little research has explored whether urban and rural areas can move from dual segmentation to integrated development from a theoretical or empirical perspective.Based on the research framework of welfare economics,which offers an appealing paradigm to frame the underlying game between cities and villages,this study clarifies the ideal state of urban-rural integration.It then proposes a series of basic assumptions,and constructs a corresponding objective function and its constraints.Moreover,it assesses the possibility of seeing the transmutation from division to integration between urban and rural areas with continuous socio-economic development.The authors argue that the ideal state of urban-rural integration should be a Pareto-driven optimal allocation of urban-rural resources and outputs,and the maximization of social welfare in the entire region.Based on a systematic demonstration using mathematical models,the study proposes that urban and rural areas can enter this ideal integrated development pattern when certain parameter conditions are met.In general,this study demonstrates the theoretical logic and scientific foundations of urban-rural integration,enriches theoretical studies about urban-rural relationships,and provides basic theoretical support for large developing countries to build a coordinated and orderly urban-rural community with a shared future.展开更多
Based on investigations of 112 Chinese firms and studies on foreign leading corporations, a theoretical framework of dynamic capabilities based strategy innovation (SI) is put forward. Several large firms in China wi...Based on investigations of 112 Chinese firms and studies on foreign leading corporations, a theoretical framework of dynamic capabilities based strategy innovation (SI) is put forward. Several large firms in China winning through SI were studied empirically. This paper complements previous publications on the theories of innovation and strategy. This work's findings will be useful for managers interested in our approach, which highlights the importance of SI and focuses on and points out the major pitfalls in the innovation processes. Implementing the dynamic capabilities based strategy innovation can effectively cultivate and develop core competences of corporations. It is concluded that implementing SI is the only path for Chinese enterprise growth in the intensified competition in the knowledge economy.展开更多
Education is the combination of basketball education and basketball activity. It is a kind of activity that basketball is as the core form, it is in order to enhance the skills of participants, technology, physical fi...Education is the combination of basketball education and basketball activity. It is a kind of activity that basketball is as the core form, it is in order to enhance the skills of participants, technology, physical fitness, and promote a comprehensive development of their physical and mental activity, meanwhile basketball is not only a comprehensive gaming activity, but also an integral part of modern competitive sports, in some way, basketball culture is belonging to a particular social and cultural patterns. The quality of the basketball culture can cultivate people＇ s sentiments in the teaching process, and develop human wisdom, so that people grasp different spatial abilities and skills with the laws and govern the movement of the body under the time, the paper analyzes Practice mode theoretical framework of the construction of the basketball sports college education curriculum system.展开更多
Along with the history of the development of financial regulation, we can see that the theory of evolution has experienced from financial liberalization to financial supervision, financial regulation, then to the stag...Along with the history of the development of financial regulation, we can see that the theory of evolution has experienced from financial liberalization to financial supervision, financial regulation, then to the stage both with the safety and efficiency of financial supervision ; development of the theory of financial regulation experienced the theory of financial supervision represented by classical economics and neo- classical economic theory, to the Keynesian theory and financial repression theory, financial fragility hypothesis, the progressive liberalization of the financial road, then to the financial regulatory theory, regulatory function theory concept, regulatory incentives theory under the framework of economics of information in the 1990s. You can see the way scholars will not have feared in the study of financial regulation, and each theory proposed has its special significance in the special economic and financial environment at the time, and we can not necessarily say what kind of theory is advanced in other theory.展开更多
Coordinated mission decision-making is one of the core steps to effectively exploit the capabilities of cooperative attack of multiple aircrafts. However, the situational assessment is an essential base to realize the...Coordinated mission decision-making is one of the core steps to effectively exploit the capabilities of cooperative attack of multiple aircrafts. However, the situational assessment is an essential base to realize the mission decision-making. Therefore, in this paper, we develop a mission decision-making method of multi-aircraft cooperatively attacking multi-target based on situational assessment. We have studied the situational assessment mathematical model based on the Dempster-Shafer(D-S) evidence theory and the mission decision-making mathematical model based on the game theory. The proposed mission decision-making method of antagonized airfight is validated by some simulation examples of a swarm of unmanned combat aerial vehicles(UCAVs)that carry out the mission of the suppressing of enemy air defenses(SEAD).展开更多
The tradeoff between efficiency and model size of the convolutional neural network(CNN)is an essential issue for applications of CNN-based algorithms to diverse real-world tasks.Although deep learning-based methods ha...The tradeoff between efficiency and model size of the convolutional neural network(CNN)is an essential issue for applications of CNN-based algorithms to diverse real-world tasks.Although deep learning-based methods have achieved significant improvements in image super-resolution(SR),current CNNbased techniques mainly contain massive parameters and a high computational complexity,limiting their practical applications.In this paper,we present a fast and lightweight framework,named weighted multi-scale residual network(WMRN),for a better tradeoff between SR performance and computational efficiency.With the modified residual structure,depthwise separable convolutions(DS Convs)are employed to improve convolutional operations’efficiency.Furthermore,several weighted multi-scale residual blocks(WMRBs)are stacked to enhance the multi-scale representation capability.In the reconstruction subnetwork,a group of Conv layers are introduced to filter feature maps to reconstruct the final high-quality image.Extensive experiments were conducted to evaluate the proposed model,and the comparative results with several state-of-the-art algorithms demonstrate the effectiveness of WMRN.展开更多
The social and economic development level of rural areas, the productivity of agriculture and the life quality of farmers were always the greatest concerns of Chinese Central Government. Therefore, the research relate...The social and economic development level of rural areas, the productivity of agriculture and the life quality of farmers were always the greatest concerns of Chinese Central Government. Therefore, the research related to rural areas, agriculture and farmers had remained as the prominent parts for a long period and would continue to be prominent in the future to build China into a moderately prosperous nation in an all-round way. Chinese rural area had constantly experienced three significant system reforms since 1978, namely the reform of rural management system, the rural tax and fee reform and the rural comprehensive reform. This paper attempted to analyze the theoretic framework and the content structure of the comprehensive rural reform since it was the higher stage of rural institutional vicissitude, which had changed the governance and operation system and thus promoted the great changes to fundamental social and economic system in rural areas. The theoretic framework of comprehensive rural reform covered three aspects in its content, namely the rural governance theory, the government function theory and the public finance theory. The comprehensive rural reform was a complicated system engineering with multiple dimensions and targets mainly including rural political restructuring, rural economic restructuring and rural public products allocation restructuring. The reform had focused on enhancing the vitality of agricultural and rural development, breaking through the urban and rural binary system, and further reducing the disparity between cities and countrysides, so as to realize the urban-rural integration. It was necessary to clarify and understand the key mechanism and intrinsic logic of the rural comprehensive reform, which was helpful to establish the foundation constituted by scientific methodology to implement the reform and evaluation criterion to judge the reform performance.展开更多
High-mobility and strong luminescent materials are essential as an important component of organic photodiodes,having received extensive attention in the field of organic optoelectronics.Beyond the conventional chemica...High-mobility and strong luminescent materials are essential as an important component of organic photodiodes,having received extensive attention in the field of organic optoelectronics.Beyond the conventional chemical synthesis of new molecules,pressure technology,as a flexible and efficient method,can tune the electronic and optical properties reversibly.However,the mechanism in organic materials has not been systematically revealed.Here,we theoretically predicted the pressure-depended luminescence and charge transport properties of high-performance organic optoelectronic semiconductors,2,6-diphenylanthracene(DPA),by first-principle and multi-scale theoretical calculation methods.The dispersion-corrected density functional theory(DFT-D)and hybrid quantum mechanics/molecular mechanics(QM/MM)method were used to get the electronic structures and vibration properties under pressure.Furthermore,the charge transport and luminescence properties were calculated with the quantum tunneling method and thermal vibration correlation function.We found that the pressure could significantly improve the charge transport performance of the DPA single crystal.When the applied pressure increased to 1.86 GPa,the hole mobility could be doubled.At the same time,due to the weak exciton coupling effect and the rigid flat structure,there is neither fluorescence quenching nor obvious emission enhancement phenomenon.The DPA single crystal possesses a slightly higher fluorescence quantum yield~0.47 under pressure.Our work systematically explored the pressure-dependence photoelectric properties and explained the inside mechanism.Also,we proposed that the exte rnal pressure would be an effective way to improve the photoelectric perfo rmance of organic semiconductors.展开更多
This paper is based on the ecological and harmonious development concept of ecological civilization, and combines economic development, environmental governance and accounting research as the basis for the development...This paper is based on the ecological and harmonious development concept of ecological civilization, and combines economic development, environmental governance and accounting research as the basis for the development of environmental accounting theory. In order to analyze the relevant theories of environmental accounting development at home and abroad, we use the historical measurement research and hierarchical division methods to systematiccally review the theoretical literatures and research progress. It is concluded that:(1) The development of foreign environmental accounting focuses on the formulation of industry norms, the interpretation of regulations and policies, and the organization of the overall structural framework. Relevant environmental costs, environmental accounting, uncertainties and environmental accounting information disclosure throughout the study of Western environmental accounting. The theory is applied to practice and tested in the free market.(2) Domestic related research is mostly based on comprehensive considerations. It started late. Although the overall environmental accounting framework is basically formed and related laws and regulations are gradually improved, there are still some: the environmental accounting subsystem is not clear, and the accounting standards are not unified. Through the combing of domestic and international environmental accounting theories and combining with China's actual national conditions, this paper proposes that in the field of environmental accounting, China needs to further improve relevant legal norms, improve the environmental accounting theory system, clarify the field of environmental accounting research, and determine environmental accounting requirements and methods.展开更多
Responding to the increasingly heated discussion of environmental issues and the mounting concern about ecological degradation, the present thesis is to try formulating a comprehensive and specific theoretical model f...Responding to the increasingly heated discussion of environmental issues and the mounting concern about ecological degradation, the present thesis is to try formulating a comprehensive and specific theoretical model for exploring the ecological ide-ologies revealed in the online Chinese resort profiles. In this model, Fairclough's three-dimensional model draws upon the Subsystem of Appraisal Theory-Attitude as the specific analytical framework and the ecological philosophy in the scope of ecocriticism as the specific explanatory tool for the exploration of ecological ideologies in these texts. Thus, the present thesis finds a point where CDA, Appraisal Theory and Ecocriticism work together to conduct a discourse analysis, which not only broadens the theoretical scope of each, but makes these theories better serve the practical course of environment protection.展开更多
Research on child-friendly cities is an integral part of the Global Childhood Research Movement,emerging under the influence of the new sociology of childhood,feminist theory,and postmodern space theory.It has gone th...Research on child-friendly cities is an integral part of the Global Childhood Research Movement,emerging under the influence of the new sociology of childhood,feminist theory,and postmodern space theory.It has gone through several developmental stages:a period of germination from the 1970s to the 1980s,a period of exploration from the 1990s to the end of the 20th century,and a period of maturation from the 21st century to the present.During this process,the analytical framework has roughly transitioned from a focus on“age-development”to“social construction,”and then to“social structure.”In response to the current neglect of the shift from a child to a childhood perspective,China's child-friendly cities should harness the momentum of the Global Childhood Research Movement.They should pay attention to the spatial issues arising under“inter-generational relations and generational structure,”revitalize the educational and natural attributes of space,and propose urban development strategies focusing on multi-generational childhood and all-age-friendly city programs from a childhood perspective.This approach will help to realize the coordination between people(in their childhood stages)and place(urban space).展开更多
The increasing complexity of global supply chains has presented critical challenges for businesses in coordinating resources, forecasting demand, and dynamically optimizing processes. Traditional supply chain manageme...The increasing complexity of global supply chains has presented critical challenges for businesses in coordinating resources, forecasting demand, and dynamically optimizing processes. Traditional supply chain management (SCM) methods are often inflexible, reactive, and prone to inefficiencies, which can result in missed opportunities and lost revenue. Technological advancements have played a pivotal role in addressing these challenges, with Generative Artificial Intelligence (GAI) emerging as a transformative force that offers numerous advantages for SCM. Despite the abundance of literature on the role of GAI in enhancing supply chain performance, it remains insufficient in providing a comprehensive theoretical framework for the construction of GAI applications and their empowerment mechanisms within SCM. This study first outlines the core GAI capabilities necessary for constructing the SCM framework. We then examine the empowerment mechanisms and challenges of GAI in SCM and propose corresponding solutions. Afterward, we discuss notable gaps and propose a comprehensive research agenda, focusing on the SCM framework empowered by GAI.展开更多
Nitrogen(N)-doped carbon nanosheets(TCM-900)were prepared by pyrolyzing the cobalt metal organic framework(MOF)and acid treatment.The TCM-900 showed outstanding ORR performance with half-potential of 0.805 V.The densi...Nitrogen(N)-doped carbon nanosheets(TCM-900)were prepared by pyrolyzing the cobalt metal organic framework(MOF)and acid treatment.The TCM-900 showed outstanding ORR performance with half-potential of 0.805 V.The density function theory(DFT)reveals the nitrogen activates the carbon atoms in the framework.The homemade ZAB with TCM-900 as ORR electrocatalyst exhibits high-power density of 45 mW·cm^(-2) and excellent long recharge cycling stability compared to Pt/C at 10 mA·cm^(-2).This work illustrates an attractive future of the rechargeable ZAB.展开更多
基金Shaanxi Provincial People’s Hospital Science and Technology Development Incubation Fund Program 2023(Project No.:2023HL-12)。
文摘Objective:To explore the obstructive factors in the behavior of medical staff during the implementation of respiratory rehabilitation process,and to provide a basis for the rehabilitation management intervention of COPD.Methods:A descriptive nature research method was adopted.An interview outline was formulated based on the theoretical domain framework.From October to December 2024,15 medical staff from the respiratory department of a tertiary hospital in Shaanxi Province were selected for semi-structured interviews.The interview data were analyzed using the Colaizzi 7-step analysis method.Result:The analysis of this study found that the obstructive factors for medical staff to implement respiratory rehabilitation include five theoretical domains.The problems are respectively the lack of knowledge about respiratory rehabilitation and insufficient training intensity,the insufficient self-recognition of implementing respiratory rehabilitation,the low awareness rate of patients and the low cooperation degree,the insufficient provision of instruments and facilities,the lack of rehabilitation training venues and respiratory rehabilitation clinics,and the lack of scientific and standardized respiratory rehabilitation management processes.Conclusion:There are many obstructive factors affecting the implementation of respiratory rehabilitation by medical staff.Clinical managers should take corresponding measures,continuously improve the rehabilitation management strategies for COPD,and promote the clinical application of the best evidence for respiratory rehabilitation.
基金Supported by the Fundamental Research Funds for the Central Universities(QN2009003)~~
文摘In the paper, theoretical framework of Circular Agricultural Science and Technology Park planning was constructed based on circular agriculture, modern agriculture, garden landscape and management of agriculture SciTech park, and the concerning meaning and characteristics were introduced, providing theoretical bases and guidance for circular agriculture SciTech park.
基金funded by the National Natural Science Foundation of China(Grant No.91844000)。
文摘Atmospheric chemistry research has been growing rapidly in China in the last 25 years since the concept of the“air pollution complex”was first proposed by Professor Xiaoyan TANG in 1997.For papers published in 2021 on air pollution(only papers included in the Web of Science Core Collection database were considered),more than 24000 papers were authored or co-authored by scientists working in China.In this paper,we review a limited number of representative and significant studies on atmospheric chemistry in China in the last few years,including studies on(1)sources and emission inventories,(2)atmospheric chemical processes,(3)interactions of air pollution with meteorology,weather and climate,(4)interactions between the biosphere and atmosphere,and(5)data assimilation.The intention was not to provide a complete review of all progress made in the last few years,but rather to serve as a starting point for learning more about atmospheric chemistry research in China.The advances reviewed in this paper have enabled a theoretical framework for the air pollution complex to be established,provided robust scientific support to highly successful air pollution control policies in China,and created great opportunities in education,training,and career development for many graduate students and young scientists.This paper further highlights that developing and low-income countries that are heavily affected by air pollution can benefit from these research advances,whilst at the same time acknowledging that many challenges and opportunities still remain in atmospheric chemistry research in China,to hopefully be addressed over the next few decades.
基金This study was funded by Shanghai Jiaotong University Multidisciplinary Research Grant,17JCYA14.The first author(Hu)was supported by Ontario Trillium Scholarship in a PhD program at the University of Ottawa
文摘Background:Since the completion of the Human Genome Project,health science has been strongly influenced by the advances in genetics and genomics.However,the progress of embracing genetics and genomics into nursing discipline is limited.One of the main barriers is lack of understanding on the relevancy of genetics and genomics to nursing discipline.Objectives:This paper aims to synthesize and develop a theoretical framework for the interaction of nursing discipline with genetics and genomics.Methods:Through content analysis and constant comparative method,a theoretical framework was developed from synthesis of the studies regarding nursing and genetics/genomics indexed in multiple English and Chinese databases.Results:Four main theoretical statements were constructed in the framework:1)There are three ways to show how genetics and genomics can influence nursing discipline:a new specialty,new technologies and a new lens;2)The significant contribution of nursing discipline to genetics and genomics lies in how nurses could focus on the association between human responses and genes and how nurses could advocate for their clients in the genetic and genomic era;3)A paradigm shift occurs after a constant interaction of nursing discipline with genetics and genomics;4)Implementation strategies could be used to facilitate the integration of genetics and genomics to nursing discipline and advance the paradigm shift.Conclusions:The framework will help to understand the relationship between nursing discipline and genetics and genomics and implicate the future studies integrating genetics and genomic science into nursing discipline.
文摘Thermally activated delayed fluorescence(TADF)molecules have outstanding potential for applications in organic light-emitting diodes(OLEDs).Due to the lack of systematic studies on the correlation between molecular structure and luminescence properties,TADF molecules are far from meeting the needs of practical applications in terms of variety and number.In this paper,three twisted TADF molecules are studied and their photophysical properties are theoretically predicted based on the thermal vibrational correlation function method combined with multiscale calculations.The results show that all the molecules exhibit fast reverse intersystem crossing(RISC)rates(kRISC),predicting their TADF luminescence properties.In addition,the binding of DHPAzSi as the donor unit with different acceptors can change the dihedral angle between the ground and excited states,and the planarity of the acceptors is positively correlated with the reorganization energy,a property that has a strong influence on the non-radiative process.Furthermore,a decrease in the energy of the molecular charge transfer state and an increase in the kRISC were observed in the films.This study not only provides a reliable explanation for the observed experimental results,but also offers valuable insights that can guide the design of future TADF molecules.
基金The Philosophy and Social Science Research Major Project of Jiangsu University,No.2023SJZD056National Natural Science Foundation of China,No.41901205。
文摘Urban-rural integration is an advanced form resulting from the future evolution of urban-rural relationships.Nevertheless,little research has explored whether urban and rural areas can move from dual segmentation to integrated development from a theoretical or empirical perspective.Based on the research framework of welfare economics,which offers an appealing paradigm to frame the underlying game between cities and villages,this study clarifies the ideal state of urban-rural integration.It then proposes a series of basic assumptions,and constructs a corresponding objective function and its constraints.Moreover,it assesses the possibility of seeing the transmutation from division to integration between urban and rural areas with continuous socio-economic development.The authors argue that the ideal state of urban-rural integration should be a Pareto-driven optimal allocation of urban-rural resources and outputs,and the maximization of social welfare in the entire region.Based on a systematic demonstration using mathematical models,the study proposes that urban and rural areas can enter this ideal integrated development pattern when certain parameter conditions are met.In general,this study demonstrates the theoretical logic and scientific foundations of urban-rural integration,enriches theoretical studies about urban-rural relationships,and provides basic theoretical support for large developing countries to build a coordinated and orderly urban-rural community with a shared future.
文摘Based on investigations of 112 Chinese firms and studies on foreign leading corporations, a theoretical framework of dynamic capabilities based strategy innovation (SI) is put forward. Several large firms in China winning through SI were studied empirically. This paper complements previous publications on the theories of innovation and strategy. This work's findings will be useful for managers interested in our approach, which highlights the importance of SI and focuses on and points out the major pitfalls in the innovation processes. Implementing the dynamic capabilities based strategy innovation can effectively cultivate and develop core competences of corporations. It is concluded that implementing SI is the only path for Chinese enterprise growth in the intensified competition in the knowledge economy.
文摘Education is the combination of basketball education and basketball activity. It is a kind of activity that basketball is as the core form, it is in order to enhance the skills of participants, technology, physical fitness, and promote a comprehensive development of their physical and mental activity, meanwhile basketball is not only a comprehensive gaming activity, but also an integral part of modern competitive sports, in some way, basketball culture is belonging to a particular social and cultural patterns. The quality of the basketball culture can cultivate people＇ s sentiments in the teaching process, and develop human wisdom, so that people grasp different spatial abilities and skills with the laws and govern the movement of the body under the time, the paper analyzes Practice mode theoretical framework of the construction of the basketball sports college education curriculum system.
文摘Along with the history of the development of financial regulation, we can see that the theory of evolution has experienced from financial liberalization to financial supervision, financial regulation, then to the stage both with the safety and efficiency of financial supervision ; development of the theory of financial regulation experienced the theory of financial supervision represented by classical economics and neo- classical economic theory, to the Keynesian theory and financial repression theory, financial fragility hypothesis, the progressive liberalization of the financial road, then to the financial regulatory theory, regulatory function theory concept, regulatory incentives theory under the framework of economics of information in the 1990s. You can see the way scholars will not have feared in the study of financial regulation, and each theory proposed has its special significance in the special economic and financial environment at the time, and we can not necessarily say what kind of theory is advanced in other theory.
基金supported by the Aeronautical Science Foundation of China (No. 05D01002)
文摘Coordinated mission decision-making is one of the core steps to effectively exploit the capabilities of cooperative attack of multiple aircrafts. However, the situational assessment is an essential base to realize the mission decision-making. Therefore, in this paper, we develop a mission decision-making method of multi-aircraft cooperatively attacking multi-target based on situational assessment. We have studied the situational assessment mathematical model based on the Dempster-Shafer(D-S) evidence theory and the mission decision-making mathematical model based on the game theory. The proposed mission decision-making method of antagonized airfight is validated by some simulation examples of a swarm of unmanned combat aerial vehicles(UCAVs)that carry out the mission of the suppressing of enemy air defenses(SEAD).
基金the National Natural Science Foundation of China(61772149,61866009,61762028,U1701267,61702169)Guangxi Science and Technology Project(2019GXNSFFA245014,ZY20198016,AD18281079,AD18216004)+1 种基金the Natural Science Foundation of Hunan Province(2020JJ3014)Guangxi Colleges and Universities Key Laboratory of Intelligent Processing of Computer Images and Graphics(GIIP202001).
文摘The tradeoff between efficiency and model size of the convolutional neural network(CNN)is an essential issue for applications of CNN-based algorithms to diverse real-world tasks.Although deep learning-based methods have achieved significant improvements in image super-resolution(SR),current CNNbased techniques mainly contain massive parameters and a high computational complexity,limiting their practical applications.In this paper,we present a fast and lightweight framework,named weighted multi-scale residual network(WMRN),for a better tradeoff between SR performance and computational efficiency.With the modified residual structure,depthwise separable convolutions(DS Convs)are employed to improve convolutional operations’efficiency.Furthermore,several weighted multi-scale residual blocks(WMRBs)are stacked to enhance the multi-scale representation capability.In the reconstruction subnetwork,a group of Conv layers are introduced to filter feature maps to reconstruct the final high-quality image.Extensive experiments were conducted to evaluate the proposed model,and the comparative results with several state-of-the-art algorithms demonstrate the effectiveness of WMRN.
基金Supported by the Funding from the Doctoral Research Foundation of Zhaoqing University(2013)
文摘The social and economic development level of rural areas, the productivity of agriculture and the life quality of farmers were always the greatest concerns of Chinese Central Government. Therefore, the research related to rural areas, agriculture and farmers had remained as the prominent parts for a long period and would continue to be prominent in the future to build China into a moderately prosperous nation in an all-round way. Chinese rural area had constantly experienced three significant system reforms since 1978, namely the reform of rural management system, the rural tax and fee reform and the rural comprehensive reform. This paper attempted to analyze the theoretic framework and the content structure of the comprehensive rural reform since it was the higher stage of rural institutional vicissitude, which had changed the governance and operation system and thus promoted the great changes to fundamental social and economic system in rural areas. The theoretic framework of comprehensive rural reform covered three aspects in its content, namely the rural governance theory, the government function theory and the public finance theory. The comprehensive rural reform was a complicated system engineering with multiple dimensions and targets mainly including rural political restructuring, rural economic restructuring and rural public products allocation restructuring. The reform had focused on enhancing the vitality of agricultural and rural development, breaking through the urban and rural binary system, and further reducing the disparity between cities and countrysides, so as to realize the urban-rural integration. It was necessary to clarify and understand the key mechanism and intrinsic logic of the rural comprehensive reform, which was helpful to establish the foundation constituted by scientific methodology to implement the reform and evaluation criterion to judge the reform performance.
基金supported by National Key R&D Program(No.2016YFB0401100)the National Natural Science Foundation of China(Nos.91833306,51633006)。
文摘High-mobility and strong luminescent materials are essential as an important component of organic photodiodes,having received extensive attention in the field of organic optoelectronics.Beyond the conventional chemical synthesis of new molecules,pressure technology,as a flexible and efficient method,can tune the electronic and optical properties reversibly.However,the mechanism in organic materials has not been systematically revealed.Here,we theoretically predicted the pressure-depended luminescence and charge transport properties of high-performance organic optoelectronic semiconductors,2,6-diphenylanthracene(DPA),by first-principle and multi-scale theoretical calculation methods.The dispersion-corrected density functional theory(DFT-D)and hybrid quantum mechanics/molecular mechanics(QM/MM)method were used to get the electronic structures and vibration properties under pressure.Furthermore,the charge transport and luminescence properties were calculated with the quantum tunneling method and thermal vibration correlation function.We found that the pressure could significantly improve the charge transport performance of the DPA single crystal.When the applied pressure increased to 1.86 GPa,the hole mobility could be doubled.At the same time,due to the weak exciton coupling effect and the rigid flat structure,there is neither fluorescence quenching nor obvious emission enhancement phenomenon.The DPA single crystal possesses a slightly higher fluorescence quantum yield~0.47 under pressure.Our work systematically explored the pressure-dependence photoelectric properties and explained the inside mechanism.Also,we proposed that the exte rnal pressure would be an effective way to improve the photoelectric perfo rmance of organic semiconductors.
基金supported by the Key Research Project of Heilongjiang Provincial Bureau of Statistics (Grant No. 2018A07)the Philosophy and Social Science Planning Research Project of Daqing City (Grant No.: DSGB2017112)the Graduate Innovation Research Project of Heilongjiang Bayi Agricultural University (Grant No. YJSCX2017-Y79)
文摘This paper is based on the ecological and harmonious development concept of ecological civilization, and combines economic development, environmental governance and accounting research as the basis for the development of environmental accounting theory. In order to analyze the relevant theories of environmental accounting development at home and abroad, we use the historical measurement research and hierarchical division methods to systematiccally review the theoretical literatures and research progress. It is concluded that:(1) The development of foreign environmental accounting focuses on the formulation of industry norms, the interpretation of regulations and policies, and the organization of the overall structural framework. Relevant environmental costs, environmental accounting, uncertainties and environmental accounting information disclosure throughout the study of Western environmental accounting. The theory is applied to practice and tested in the free market.(2) Domestic related research is mostly based on comprehensive considerations. It started late. Although the overall environmental accounting framework is basically formed and related laws and regulations are gradually improved, there are still some: the environmental accounting subsystem is not clear, and the accounting standards are not unified. Through the combing of domestic and international environmental accounting theories and combining with China's actual national conditions, this paper proposes that in the field of environmental accounting, China needs to further improve relevant legal norms, improve the environmental accounting theory system, clarify the field of environmental accounting research, and determine environmental accounting requirements and methods.
文摘Responding to the increasingly heated discussion of environmental issues and the mounting concern about ecological degradation, the present thesis is to try formulating a comprehensive and specific theoretical model for exploring the ecological ide-ologies revealed in the online Chinese resort profiles. In this model, Fairclough's three-dimensional model draws upon the Subsystem of Appraisal Theory-Attitude as the specific analytical framework and the ecological philosophy in the scope of ecocriticism as the specific explanatory tool for the exploration of ecological ideologies in these texts. Thus, the present thesis finds a point where CDA, Appraisal Theory and Ecocriticism work together to conduct a discourse analysis, which not only broadens the theoretical scope of each, but makes these theories better serve the practical course of environment protection.
文摘Research on child-friendly cities is an integral part of the Global Childhood Research Movement,emerging under the influence of the new sociology of childhood,feminist theory,and postmodern space theory.It has gone through several developmental stages:a period of germination from the 1970s to the 1980s,a period of exploration from the 1990s to the end of the 20th century,and a period of maturation from the 21st century to the present.During this process,the analytical framework has roughly transitioned from a focus on“age-development”to“social construction,”and then to“social structure.”In response to the current neglect of the shift from a child to a childhood perspective,China's child-friendly cities should harness the momentum of the Global Childhood Research Movement.They should pay attention to the spatial issues arising under“inter-generational relations and generational structure,”revitalize the educational and natural attributes of space,and propose urban development strategies focusing on multi-generational childhood and all-age-friendly city programs from a childhood perspective.This approach will help to realize the coordination between people(in their childhood stages)and place(urban space).
基金supported by the National Natural Science Foundation of China(Grant Nos.72272013,72402230,71971027 and 72321002)the Humanity and Social Science Foundation of Ministry of Education of China(Grant No.24YJC630232)+4 种基金Beijing Natural Science Foundation(Grant No.9244035)the China Postdoctoral Science Foundation(No.2023M743872)the Postdoctoral Fellowship Program(Grade C)of China Postdoctoral Science Foundation(No.GZC20242003)the Fundamental Research Funds for the Central Universities(No.2023CX01029)the Science Foundation of China University of Petroleum,Beijing(No.2462023BJRC031).
文摘The increasing complexity of global supply chains has presented critical challenges for businesses in coordinating resources, forecasting demand, and dynamically optimizing processes. Traditional supply chain management (SCM) methods are often inflexible, reactive, and prone to inefficiencies, which can result in missed opportunities and lost revenue. Technological advancements have played a pivotal role in addressing these challenges, with Generative Artificial Intelligence (GAI) emerging as a transformative force that offers numerous advantages for SCM. Despite the abundance of literature on the role of GAI in enhancing supply chain performance, it remains insufficient in providing a comprehensive theoretical framework for the construction of GAI applications and their empowerment mechanisms within SCM. This study first outlines the core GAI capabilities necessary for constructing the SCM framework. We then examine the empowerment mechanisms and challenges of GAI in SCM and propose corresponding solutions. Afterward, we discuss notable gaps and propose a comprehensive research agenda, focusing on the SCM framework empowered by GAI.
基金the National Natural Science Foundation of China(Nos.51875476,92067205 and 11902144)High Performance Computing Center。
文摘Nitrogen(N)-doped carbon nanosheets(TCM-900)were prepared by pyrolyzing the cobalt metal organic framework(MOF)and acid treatment.The TCM-900 showed outstanding ORR performance with half-potential of 0.805 V.The density function theory(DFT)reveals the nitrogen activates the carbon atoms in the framework.The homemade ZAB with TCM-900 as ORR electrocatalyst exhibits high-power density of 45 mW·cm^(-2) and excellent long recharge cycling stability compared to Pt/C at 10 mA·cm^(-2).This work illustrates an attractive future of the rechargeable ZAB.
