Under the background of urban renewal, this paper re-explores the tourism development modeof Nanluoguxiang historical and cultural block based on online review data, and puts forward correspondingdevelopment strategie...Under the background of urban renewal, this paper re-explores the tourism development modeof Nanluoguxiang historical and cultural block based on online review data, and puts forward correspondingdevelopment strategies. As a cultural label of a city, historical and cultural blocks should be updated first inorder to achieve sustainable development. By using multi-source big data review and qualitative researchmethods, the perception evaluation of tourists in Nanluoguxiang is obtained, and the shortcomings ofcurrent tourism development mode are analyzed. Furthermore, corresponding improvement strategies andsuggestions are put forward, in order to provide some effective ideas for the sustainable development ofhistorical and cultural blocks in the future.展开更多
Tight sandstone gas serves as an important unconventional hydrocarbon resource, and outstanding results have been obtained through its discovery both in China and abroad given its great resource potential. However, he...Tight sandstone gas serves as an important unconventional hydrocarbon resource, and outstanding results have been obtained through its discovery both in China and abroad given its great resource potential. However, heated debates and gaps still remain regarding classification standards of tight sandstone gas, and critical controlling factors, accumulation mechanisms, and devel- opment modes of tight sandstone reservoirs are not deter- mined. Tight sandstone gas reservoirs in China are generally characterized by tight strata, widespread distri- bution areas, coal strata supplying gas, complex gas-water relations, and abnormally low gas reservoir pressure. Water and gas reversal patterns have been detected via glass tube and quartz sand modeling, and the presence of critical geological conditions without buoyancy-driven mecha- nisms can thus be assumed. According to the timing of gas charging and reservoir tightening phases, the following three tight sandstone gas reservoir types have been identified: (a) "accumulation-densification" (AD), or the conventional tight type, (b) "densification-accumulation" (DA), or the deep tight type, and (c) the composite tight type. For the AD type, gas charging occurs prior to reser- voir densification, accumulating in higher positions under buoyancy-controlled mechanisms with critical controlling factors such as source kitchens (S), regional overlaying cap rocks (C), gas reservoirs, (D) and low fluid potential areas (P). For the DA type, reservoir densification prior to the gas charging period (GCP) leads to accumulation in depres- sions and slopes largely due to hydrocarbon expansive forces without buoyancy, and critical controlling factors are effective source rocks (S), widely distributed reservoirs (D), stable tectonic settings (W) and universal densification of reservoirs (L). The composite type includes features of the AD type and DA type, and before and after reservoir densification period (RDP), gas charging and accumulation is controlled by early buoyancy and later molecular expansive force respectively. It is widely distributed in anticlinal zones, deep sag areas and slopes, and is con- trolled by source kitchens (S), reservoirs (D), cap rocks (C), stable tectonic settings (W), low fluid potential areas (P), and universal reservoir densification (L). Tight gas resources with great resource potential are widely dis- tributed worldwide, and tight gas in China that presents advantageous reservoir-forming conditions is primarily found in the Ordos, Sichuan, Tarim, Junggar, and Turpan- Hami basins of central-western China. Tight gas has served as the primary impetus for global unconventional natural gas exploration and production under existing technical conditions.展开更多
Based on the oil,gas and water distribution characteristics of Khasib reservoir in Halfaya oilfield,Iraq,a core displacement experiment is designed to evaluate the influence of different displacement methods and displ...Based on the oil,gas and water distribution characteristics of Khasib reservoir in Halfaya oilfield,Iraq,a core displacement experiment is designed to evaluate the influence of different displacement methods and displacement parameters on oil displacement efficiency.The research shows that,in the displacement method with water injected from the edge of the reservoir,early depletion production is conducive to the elastic expansion of the gas cap,forming the three-dimensional displacement of"upper pressure and lower pushing",and the oil displacement effect is good.When gas injection at the top and water injection at the edge are used for synergistic displacement,the injection timing has different influences on the oil displacement effects of high and low parts.Considering the overall oil displacement efficiency,the injection pressure should be greater than the bubble point pressure of crude oil.Two displacement methods are recommended with the reasonable injection time at 20–25 MPa.The injection speed has the same influence on different injection media.Appropriately reducing the injection speed is conducive to the stability of the displacement front,delaying the breakthrough of injection media and improving the oil displacement effect.The reasonable injection rate of water flooding is 0.075 mL/min,the reasonable injection rates of water and gas are 0.15 mL/min and 0.10 mL/min,respectively in gas-water synergistic displacement.Gas-water synergistic displacement is conducive to the production of crude oil at high position,and has crude oil recovery 5.0%–14.8%higher than water flooding from the edge,so it is recommended as the development mode of Khasib reservoir at the middle and late stages.展开更多
The development mode of mid-small cities in northern Jiangsu is analyzed on the Growth Pole theory.Depending on scales,endowment of resources,geographical positions,and industrial advantages of mil-small cities,we can...The development mode of mid-small cities in northern Jiangsu is analyzed on the Growth Pole theory.Depending on scales,endowment of resources,geographical positions,and industrial advantages of mil-small cities,we can divide the development mode of those mid-small cities within this context into five types:development through integration into big cities;independent development;resource-dependent development;single industry development;and mixed industry development.展开更多
The development mode of industrial civilization has created huge material wealth for human society,but at the same time the severe ecological problems that have arisen from it have made human civilization fall into th...The development mode of industrial civilization has created huge material wealth for human society,but at the same time the severe ecological problems that have arisen from it have made human civilization fall into the dispersion of unsustainable development.The industrialized development mode has obvious non-ecological economic qualities,which are specifically manifested in the destruction of the ecological economy relationship between nature and mankind,the emergence of cracks of metabolism between nature and mankind,the unbalanced development of the social productive forces and the natural productive forces,and the functioning of one-way linear non-circular economy.Under the trend of ecological evolution of human civilization,the industrial civilization will be replaced by the ecological civilization,and then the industrial economic development mode will be transformed into the ecological economic development mode.As a result,the predicament of once unsustainable development has been gradually dispersed and human civilization enters a beautiful new era of coordinated development of economic society and natural ecology.展开更多
The world today is facing a new round of scientific, technological and industrial revolution, and all countries are seeking new development models that have a major role in driving and leading the economy and society....The world today is facing a new round of scientific, technological and industrial revolution, and all countries are seeking new development models that have a major role in driving and leading the economy and society. China is also addressing the imbalance between economic development and ecological environmental protection through innovation development of green technology and continuously strives for high-quality economic development. Exploring the integrated development mode of green technology innovation has great theoretical significance and practical value for enhancing the competitiveness of enterprises, promoting the transformation and transfer of green technologies, spurring the development of green “One Belt and One Road”, and driving the economic development and reform in quality, efficiency, and forces. This article sorts out the core elements and influencing factors of constructing a green technology innovation and integration development model, expounds the innovation ecological framework that supports the development of green industries from the four dimensions of industrialization, marketization, informatization, and internationalization, and builds an intermediary that promotes integrated development. The functional architecture proposes an informatization infrastructure that promotes the industrial ecology, and designs a model for the integration and development of international green technology innovation, is of momentous theoretical significance and practical value to improve the quality of the global green development.展开更多
Daren Village in Ningbo has deeply explored the connotation of farming culture,and built an agricultural tourism health care industrial park integrating leisure agriculture,eco-tourism and healthy pastoral using the n...Daren Village in Ningbo has deeply explored the connotation of farming culture,and built an agricultural tourism health care industrial park integrating leisure agriculture,eco-tourism and healthy pastoral using the natural pastoral resources of the park.This pastoral complex achieves the goals of increasing agricultural efficiency and farmers'income and improving rural greening by strengthening industrial revitalization,integrating the"sixth industry"and building an urban-rural integrated development hub.However,in the process of development,there are also some problems,such as single development model,insufficient innovation,lack of brand effect,single financing mode and standardization of services.In view of these problems,this paper provides some scientific and objective guidance for the construction of domestic pastoral complex.展开更多
Carbonate rock has the characteristics of complicated accumulation rules,large-scale development,high yield but unstable production.Therefore,the management and control of surface engineering projects of carbonate roc...Carbonate rock has the characteristics of complicated accumulation rules,large-scale development,high yield but unstable production.Therefore,the management and control of surface engineering projects of carbonate rock oil and gas reservoirs faces huge difficulties and challenges.The construction of surface engineering should conform to the principle of integrated underground and ground construction and adapt to the oilfield development model.This paper takes the newly added area A of the carbonated oil field as an example to study the ground engineering under the rolling development mode and aims to provide the constructive ideas for the surface engineering under rolling development mode.The overall regional process design adheres to the design concept of"environmental protection,efficiency,and innovation",strictly follows the design specifications,and combines reservoir engineering and oil production engineering programs,oil and gas physical properties and chemical composition,product programs,ground natural conditions,etc.According to the technical and economic analysis and comparison of area A,this paper has worked out a suitable surface engineering construction,pipeline network layout and oil and gas gathering and transportation plan for area A.Some auxiliary management recommendations are also proposed in this paper,like sand prevention management and HSE management for carbonate reservoirs.展开更多
The technology-driven mode in the long-term evolution of telecom has recently been shifted to the service-driven mode. The study on future telecom services is driving the growth of telecom network construction and ope...The technology-driven mode in the long-term evolution of telecom has recently been shifted to the service-driven mode. The study on future telecom services is driving the growth of telecom network construction and operation, and playing an increasingly important role in telecom development worldwide. This article analyzes the important features of the service-driven mode in current telecom industry and discusses important telecom development trends in the service-driven mode.展开更多
Aesthetic education not only exists in the classroom,but also in the urban living environment.The development of this environmental aesthetic education function is often accompanied by the development and change of ur...Aesthetic education not only exists in the classroom,but also in the urban living environment.The development of this environmental aesthetic education function is often accompanied by the development and change of urban landscape.Urban agricultural landscape is an organic part of modern urban landscape.It is different from machines or buildings in general urban production and life.Its local aesthetic value should be fully recognized and excavated.This is mainly reflected in the beauty of traditional agricultural skills,agricultural landscapes,and agricultural activities.At the same time,according to the different ways of interaction between people and the environment(ways of receiving aesthetic education),the development mode of vernacular aesthetic education of urban agricultural landscape can be divided into three:viewing mode,short-time contact,and long-time immersion.展开更多
Based on the background and development of the pastoral complex,it is believed that the pastoral complex is an inevitable trend of the development of modern agriculture and it is the product of agriculture developing ...Based on the background and development of the pastoral complex,it is believed that the pastoral complex is an inevitable trend of the development of modern agriculture and it is the product of agriculture developing to a higher stage following agricultural industrial park,beautiful countryside,characteristic town,and whole area tourism. Combined with many years of planning and design practice of Wuhan Modern Urban Agriculture Planning and Design Institute,this paper summarized ideas of construction and operation of the pastoral complex,and discussed the construction of pastoral complex planning system,in the hope of providing certain reference for planning of pastoral complex in the whole country in the new period. Finally,through the overview of development history and highlight of urban agriculture in Wuhan,it came up with measures and recommendations for development of pastoral complex in Wuhan City.展开更多
From strengthening the construction of an innovation system,adhering to the green development model of the industry,advancing the rural revitalization strategy,strengthening the protection and inheritance of cultural ...From strengthening the construction of an innovation system,adhering to the green development model of the industry,advancing the rural revitalization strategy,strengthening the protection and inheritance of cultural heritage,accelerating the development of social undertakings,and expanding the space for regional cooperation,this paper discusses the strategies for the construction of sustainable development experimental zone in Fumian District,Yulin City.It is intended to build Fumian District into a vibrant,economically prosperous,urban and rural integrated,characteristic cultural,safe and harmonious,inclusive and open district.展开更多
Since the 18 th Party Congress, green and low carbon industry-oriented industrialization road became a new main industry development direction. Through analyzing four kinds of region industry development modes and cur...Since the 18 th Party Congress, green and low carbon industry-oriented industrialization road became a new main industry development direction. Through analyzing four kinds of region industry development modes and current situation of the industrial development of the western region, this paper uses DEA method to evaluate 11 western provinces industry green degree and resource utilization degree between 2008 and 2014, and gets the evolution process of the industrial development pattern during 7 years. The results indicate that: industrial development models are not the same in the western China and green degree are generally low. On this basis, it is concluded that the evolution of green development patterns for reference are 4 kinds of industrial development models. Finally, on the basis of green development pattern evolution path this paper provides advice to improve green degree and the degree of resource utilization.展开更多
The Kinetica-I rocket is designed for small-and medium-sized spacecraft launch missions to sun-synchronous orbit and low Earth orbit.The maiden flight was performed on July 27,2022.The Kinetica-I rocket is characteriz...The Kinetica-I rocket is designed for small-and medium-sized spacecraft launch missions to sun-synchronous orbit and low Earth orbit.The maiden flight was performed on July 27,2022.The Kinetica-I rocket is characterized by competitive payload capability and cost,robust orbital insertion accuracy,high reliability,availability at short notice and logistical versatility.12 new core technologies have been achieved during the development of the rocket.It is of great significance in promoting the innovation of China's solid carrier rocket technology and science exploration.展开更多
The 21st Century Business Herald,a leading Chinese finandal newspaper, recently sat down with Tian Guoqiang,Dean of the School of Economics, Shanghai University of Finance and Economics,and professor at Texas A&M ...The 21st Century Business Herald,a leading Chinese finandal newspaper, recently sat down with Tian Guoqiang,Dean of the School of Economics, Shanghai University of Finance and Economics,and professor at Texas A&M University (U.S.),to discuss the future outlook of China’s economic development.Excerpts follow:展开更多
Resilience has become an increasingly important concept in the cultural heritage feld,particularly in the aftermath of the unprecedented challenges the COVID-19 global pandemic brought.However,on a conceptual and prac...Resilience has become an increasingly important concept in the cultural heritage feld,particularly in the aftermath of the unprecedented challenges the COVID-19 global pandemic brought.However,on a conceptual and practical level,resilience remains closely linked to the technical conservation of built heritage,and there remains a need to develop broader approaches inclusive of cultural and socioeconomic components.This article investigates the potential applicability of theoretical concepts linked to identity and identities in heritage planning to help fll these gaps and develop approaches that consider resilience and are better able to address a range of unanticipated disasters.We frst review the literature and policy documents to defne and identify the potential for identities-based approaches.We then examine the case of Matera,an extremely fragile world heritage site in southern Italy that has been continuously inhabited for more than 8000 years and provides a relevant example of resilience.We explore the trends and efects of globalised tourism development before the pandemic and the post pandemic emergence of more local/regional and slow tourism patterns,largely based on cultural solutions to local development challenges and knowledge exchange.Through this comparison,we analyse the potential and limitations of introducing identities-based concepts into heritage planning as a more robust way to enhance resilience and prepare cities for unexpected future crises.展开更多
The primary theoretical framework of the Sciences of Human Settlements was established based on the researches and practices for decades. Nowadays, it is facing a new start in order to face the challenges of "tra...The primary theoretical framework of the Sciences of Human Settlements was established based on the researches and practices for decades. Nowadays, it is facing a new start in order to face the challenges of "transformation" and "restructuring" amid the process of urbanization. It means that, in both the theoretical and practical fields of the Sciences of Human Settlements, due attention should be paid to the discussions on urbanization strategies, the rethinking on balanced urban-rural development, the extension and integration of various disciplines, and the realization of experimental projects in various localities. The Sciences of Human Settlements should be more closely connected with related sciences and technologies and learn more from the traditional "Chinese wisdom," so as to establish the system of "Grand Science, Grand Humanism and Grand Arts." The practice of the Sciences of Human Settlements should highlight the integration of both strategies and methodologies, the completion of institutions, and the monitoring at the macro-level. Both the top-down strategic planning and design and the bottom-up comprehensive community construction are necessary. Now that the times of great transition brings us an opportunity to solve problems creatively, the Sciences of Human Settlements should be further researched and explored.展开更多
The oil in the Jurassic Da'anzhai reservoirs in the Sichuan Basin is unconventional tight oil,which accumulated in or near source rocks,and did not experience extensive migration in a large-scale long distance.The...The oil in the Jurassic Da'anzhai reservoirs in the Sichuan Basin is unconventional tight oil,which accumulated in or near source rocks,and did not experience extensive migration in a large-scale long distance.The first submember,second submember and third submember of Da'anzhai Member are dominated by shell limestone which is widely and continuously distributed,and are typical near-source lacustrine shell limestone tight reservoirs.Complex lithology,multiple types of reservoir space and complicated pore structure are developed in these reservoirs.The effective reservoir space mainly includes micro-pores and micro-fractures with strong fabric selectivity.The petrophysics experiment reveals that the average connected matrix porosity of tight oil reservoir in Jurassic Da'anzhai Member is about 2.13%,lower than that of other tight oil reservoirs but higher than the average effective porosity(0.97%)from previous single alcohol-saturated method.According to production performance data,the Da'anzhai shell limestone reservoir is not a simple porous or fractured reservoir,but has complex porethroat-fracture association or storage-seepage mode.Because the development of fossil shells controls the development of micro-fractures,fluids are difficult to enter into but easy to escape from the reservoirs.Although the pore-throat is fine,the sorting is poor and the displacement pressure is high,the movable fluid saturation and mercury ejection efficiency of the reservoir in the Da'anzhai Member is only slightly lower than that of some storage-seepage modes,and higher than that of Oil-bearing Group 7 of Yanchang Formation in the Ordos Basin.The reservoir in the Da'anzhai Member is one of the few tight oil reservoirs with high natural productivity.The tight oil in the shell limestone of the Da'anzhai Member has great development potential,but its extensive and effective development also has some challenges,such as high seepage resistance of matrix and ineffective single development mode.The development mode of the Da'anzhai tight oil should draw lessons from the Bakken Formation in North America and Oil-bearing Gourp 7 of Yanchang Formation in the Ordos Basin,and thus,effective development technologies based on volume fracturing and fine operation for shell limestone tight oil in the Da'anzhai Member in Sichuan Basin are developed to realize the development of profit and scale.展开更多
Targeted at the dynamic demands in the rapid urban construction, the planning technology strategy of the Shenzhen International Low Carbon City studies the fl exible index model based on carbon emission evaluation, an...Targeted at the dynamic demands in the rapid urban construction, the planning technology strategy of the Shenzhen International Low Carbon City studies the fl exible index model based on carbon emission evaluation, and adopts rolling development and micro-circulation construction mode to achieve quick returns with small investment. Meanwhile, it also evaluates the application of low carbon technology and gives feedback in time, so as to constantly optimize and complete the low carbon city planning. In detail, it involves industrial planning, ecological restoration, transport planning, energy resource planning, architectural design, etc., for which appropriate approaches are selected according to the principle of rolling development of unit cells and based on different requirements of different stages. The quick-response and fl exible technology system can help the low carbon city to choose an appropriate technology strategy in line with its own characteristics in the start-up stage and rapid development, thus realizing the sustainable leap-forward development and providing reference for other similar regions.展开更多
基金National Social Science Foundation Project of China(21FYSB048)Humanities and Social Sciences Research Project of the Ministry of Education(20YJAZH1010).
文摘Under the background of urban renewal, this paper re-explores the tourism development modeof Nanluoguxiang historical and cultural block based on online review data, and puts forward correspondingdevelopment strategies. As a cultural label of a city, historical and cultural blocks should be updated first inorder to achieve sustainable development. By using multi-source big data review and qualitative researchmethods, the perception evaluation of tourists in Nanluoguxiang is obtained, and the shortcomings ofcurrent tourism development mode are analyzed. Furthermore, corresponding improvement strategies andsuggestions are put forward, in order to provide some effective ideas for the sustainable development ofhistorical and cultural blocks in the future.
基金supported by the National Natural Science Foundation of China (No. 41472112)the National Major Projects (No. 2011ZX05018002)
文摘Tight sandstone gas serves as an important unconventional hydrocarbon resource, and outstanding results have been obtained through its discovery both in China and abroad given its great resource potential. However, heated debates and gaps still remain regarding classification standards of tight sandstone gas, and critical controlling factors, accumulation mechanisms, and devel- opment modes of tight sandstone reservoirs are not deter- mined. Tight sandstone gas reservoirs in China are generally characterized by tight strata, widespread distri- bution areas, coal strata supplying gas, complex gas-water relations, and abnormally low gas reservoir pressure. Water and gas reversal patterns have been detected via glass tube and quartz sand modeling, and the presence of critical geological conditions without buoyancy-driven mecha- nisms can thus be assumed. According to the timing of gas charging and reservoir tightening phases, the following three tight sandstone gas reservoir types have been identified: (a) "accumulation-densification" (AD), or the conventional tight type, (b) "densification-accumulation" (DA), or the deep tight type, and (c) the composite tight type. For the AD type, gas charging occurs prior to reser- voir densification, accumulating in higher positions under buoyancy-controlled mechanisms with critical controlling factors such as source kitchens (S), regional overlaying cap rocks (C), gas reservoirs, (D) and low fluid potential areas (P). For the DA type, reservoir densification prior to the gas charging period (GCP) leads to accumulation in depres- sions and slopes largely due to hydrocarbon expansive forces without buoyancy, and critical controlling factors are effective source rocks (S), widely distributed reservoirs (D), stable tectonic settings (W) and universal densification of reservoirs (L). The composite type includes features of the AD type and DA type, and before and after reservoir densification period (RDP), gas charging and accumulation is controlled by early buoyancy and later molecular expansive force respectively. It is widely distributed in anticlinal zones, deep sag areas and slopes, and is con- trolled by source kitchens (S), reservoirs (D), cap rocks (C), stable tectonic settings (W), low fluid potential areas (P), and universal reservoir densification (L). Tight gas resources with great resource potential are widely dis- tributed worldwide, and tight gas in China that presents advantageous reservoir-forming conditions is primarily found in the Ordos, Sichuan, Tarim, Junggar, and Turpan- Hami basins of central-western China. Tight gas has served as the primary impetus for global unconventional natural gas exploration and production under existing technical conditions.
基金Supported by the Scientific Research and Technology Development Project of CNPC(2019D-4410)。
文摘Based on the oil,gas and water distribution characteristics of Khasib reservoir in Halfaya oilfield,Iraq,a core displacement experiment is designed to evaluate the influence of different displacement methods and displacement parameters on oil displacement efficiency.The research shows that,in the displacement method with water injected from the edge of the reservoir,early depletion production is conducive to the elastic expansion of the gas cap,forming the three-dimensional displacement of"upper pressure and lower pushing",and the oil displacement effect is good.When gas injection at the top and water injection at the edge are used for synergistic displacement,the injection timing has different influences on the oil displacement effects of high and low parts.Considering the overall oil displacement efficiency,the injection pressure should be greater than the bubble point pressure of crude oil.Two displacement methods are recommended with the reasonable injection time at 20–25 MPa.The injection speed has the same influence on different injection media.Appropriately reducing the injection speed is conducive to the stability of the displacement front,delaying the breakthrough of injection media and improving the oil displacement effect.The reasonable injection rate of water flooding is 0.075 mL/min,the reasonable injection rates of water and gas are 0.15 mL/min and 0.10 mL/min,respectively in gas-water synergistic displacement.Gas-water synergistic displacement is conducive to the production of crude oil at high position,and has crude oil recovery 5.0%–14.8%higher than water flooding from the edge,so it is recommended as the development mode of Khasib reservoir at the middle and late stages.
基金Philosophical and Social Science Research Project in Colleges and Universities of Jiangsu Province in 2010 (2010SJD790005)
文摘The development mode of mid-small cities in northern Jiangsu is analyzed on the Growth Pole theory.Depending on scales,endowment of resources,geographical positions,and industrial advantages of mil-small cities,we can divide the development mode of those mid-small cities within this context into five types:development through integration into big cities;independent development;resource-dependent development;single industry development;and mixed industry development.
基金Supported by the Key Research Projects of Shanxi Federation of Social Sciences from 2020 to 2021(SSKLZDKT2020001)Later Funded Project of Philosophy and Social Sciences in Shanxi Province in 2019(2019D008)+1 种基金Research Project Supported by Shanxi Scholarship Council of China(HGKY2019074)the Humanities and Social Sciences Research Foundation Project of North University of China in 2019(ZYMY201903).
文摘The development mode of industrial civilization has created huge material wealth for human society,but at the same time the severe ecological problems that have arisen from it have made human civilization fall into the dispersion of unsustainable development.The industrialized development mode has obvious non-ecological economic qualities,which are specifically manifested in the destruction of the ecological economy relationship between nature and mankind,the emergence of cracks of metabolism between nature and mankind,the unbalanced development of the social productive forces and the natural productive forces,and the functioning of one-way linear non-circular economy.Under the trend of ecological evolution of human civilization,the industrial civilization will be replaced by the ecological civilization,and then the industrial economic development mode will be transformed into the ecological economic development mode.As a result,the predicament of once unsustainable development has been gradually dispersed and human civilization enters a beautiful new era of coordinated development of economic society and natural ecology.
文摘The world today is facing a new round of scientific, technological and industrial revolution, and all countries are seeking new development models that have a major role in driving and leading the economy and society. China is also addressing the imbalance between economic development and ecological environmental protection through innovation development of green technology and continuously strives for high-quality economic development. Exploring the integrated development mode of green technology innovation has great theoretical significance and practical value for enhancing the competitiveness of enterprises, promoting the transformation and transfer of green technologies, spurring the development of green “One Belt and One Road”, and driving the economic development and reform in quality, efficiency, and forces. This article sorts out the core elements and influencing factors of constructing a green technology innovation and integration development model, expounds the innovation ecological framework that supports the development of green industries from the four dimensions of industrialization, marketization, informatization, and internationalization, and builds an intermediary that promotes integrated development. The functional architecture proposes an informatization infrastructure that promotes the industrial ecology, and designs a model for the integration and development of international green technology innovation, is of momentous theoretical significance and practical value to improve the quality of the global green development.
基金the Soft Science Fund Project of Ningbo Science and Technology Bureau,China(2021R009).
文摘Daren Village in Ningbo has deeply explored the connotation of farming culture,and built an agricultural tourism health care industrial park integrating leisure agriculture,eco-tourism and healthy pastoral using the natural pastoral resources of the park.This pastoral complex achieves the goals of increasing agricultural efficiency and farmers'income and improving rural greening by strengthening industrial revitalization,integrating the"sixth industry"and building an urban-rural integrated development hub.However,in the process of development,there are also some problems,such as single development model,insufficient innovation,lack of brand effect,single financing mode and standardization of services.In view of these problems,this paper provides some scientific and objective guidance for the construction of domestic pastoral complex.
文摘Carbonate rock has the characteristics of complicated accumulation rules,large-scale development,high yield but unstable production.Therefore,the management and control of surface engineering projects of carbonate rock oil and gas reservoirs faces huge difficulties and challenges.The construction of surface engineering should conform to the principle of integrated underground and ground construction and adapt to the oilfield development model.This paper takes the newly added area A of the carbonated oil field as an example to study the ground engineering under the rolling development mode and aims to provide the constructive ideas for the surface engineering under rolling development mode.The overall regional process design adheres to the design concept of"environmental protection,efficiency,and innovation",strictly follows the design specifications,and combines reservoir engineering and oil production engineering programs,oil and gas physical properties and chemical composition,product programs,ground natural conditions,etc.According to the technical and economic analysis and comparison of area A,this paper has worked out a suitable surface engineering construction,pipeline network layout and oil and gas gathering and transportation plan for area A.Some auxiliary management recommendations are also proposed in this paper,like sand prevention management and HSE management for carbonate reservoirs.
文摘The technology-driven mode in the long-term evolution of telecom has recently been shifted to the service-driven mode. The study on future telecom services is driving the growth of telecom network construction and operation, and playing an increasingly important role in telecom development worldwide. This article analyzes the important features of the service-driven mode in current telecom industry and discusses important telecom development trends in the service-driven mode.
基金The 2021 Project of Aesthetics and Aesthetic Education Research Center of Sichuan Key Research Base of Social Sciences,“Study on the Development of Urban Agricultural Landscape Resources from the Perspective of Vernacular Aesthetic Education”(Project Number:21C032).
文摘Aesthetic education not only exists in the classroom,but also in the urban living environment.The development of this environmental aesthetic education function is often accompanied by the development and change of urban landscape.Urban agricultural landscape is an organic part of modern urban landscape.It is different from machines or buildings in general urban production and life.Its local aesthetic value should be fully recognized and excavated.This is mainly reflected in the beauty of traditional agricultural skills,agricultural landscapes,and agricultural activities.At the same time,according to the different ways of interaction between people and the environment(ways of receiving aesthetic education),the development mode of vernacular aesthetic education of urban agricultural landscape can be divided into three:viewing mode,short-time contact,and long-time immersion.
文摘Based on the background and development of the pastoral complex,it is believed that the pastoral complex is an inevitable trend of the development of modern agriculture and it is the product of agriculture developing to a higher stage following agricultural industrial park,beautiful countryside,characteristic town,and whole area tourism. Combined with many years of planning and design practice of Wuhan Modern Urban Agriculture Planning and Design Institute,this paper summarized ideas of construction and operation of the pastoral complex,and discussed the construction of pastoral complex planning system,in the hope of providing certain reference for planning of pastoral complex in the whole country in the new period. Finally,through the overview of development history and highlight of urban agriculture in Wuhan,it came up with measures and recommendations for development of pastoral complex in Wuhan City.
基金Supported by Yulin Science and Technology Development Plan Project(YuShiKe 20204038,2019Cxpt00A4,YuShiKe 20202001).
文摘From strengthening the construction of an innovation system,adhering to the green development model of the industry,advancing the rural revitalization strategy,strengthening the protection and inheritance of cultural heritage,accelerating the development of social undertakings,and expanding the space for regional cooperation,this paper discusses the strategies for the construction of sustainable development experimental zone in Fumian District,Yulin City.It is intended to build Fumian District into a vibrant,economically prosperous,urban and rural integrated,characteristic cultural,safe and harmonious,inclusive and open district.
文摘Since the 18 th Party Congress, green and low carbon industry-oriented industrialization road became a new main industry development direction. Through analyzing four kinds of region industry development modes and current situation of the industrial development of the western region, this paper uses DEA method to evaluate 11 western provinces industry green degree and resource utilization degree between 2008 and 2014, and gets the evolution process of the industrial development pattern during 7 years. The results indicate that: industrial development models are not the same in the western China and green degree are generally low. On this basis, it is concluded that the evolution of green development patterns for reference are 4 kinds of industrial development models. Finally, on the basis of green development pattern evolution path this paper provides advice to improve green degree and the degree of resource utilization.
文摘The Kinetica-I rocket is designed for small-and medium-sized spacecraft launch missions to sun-synchronous orbit and low Earth orbit.The maiden flight was performed on July 27,2022.The Kinetica-I rocket is characterized by competitive payload capability and cost,robust orbital insertion accuracy,high reliability,availability at short notice and logistical versatility.12 new core technologies have been achieved during the development of the rocket.It is of great significance in promoting the innovation of China's solid carrier rocket technology and science exploration.
文摘The 21st Century Business Herald,a leading Chinese finandal newspaper, recently sat down with Tian Guoqiang,Dean of the School of Economics, Shanghai University of Finance and Economics,and professor at Texas A&M University (U.S.),to discuss the future outlook of China’s economic development.Excerpts follow:
文摘Resilience has become an increasingly important concept in the cultural heritage feld,particularly in the aftermath of the unprecedented challenges the COVID-19 global pandemic brought.However,on a conceptual and practical level,resilience remains closely linked to the technical conservation of built heritage,and there remains a need to develop broader approaches inclusive of cultural and socioeconomic components.This article investigates the potential applicability of theoretical concepts linked to identity and identities in heritage planning to help fll these gaps and develop approaches that consider resilience and are better able to address a range of unanticipated disasters.We frst review the literature and policy documents to defne and identify the potential for identities-based approaches.We then examine the case of Matera,an extremely fragile world heritage site in southern Italy that has been continuously inhabited for more than 8000 years and provides a relevant example of resilience.We explore the trends and efects of globalised tourism development before the pandemic and the post pandemic emergence of more local/regional and slow tourism patterns,largely based on cultural solutions to local development challenges and knowledge exchange.Through this comparison,we analyse the potential and limitations of introducing identities-based concepts into heritage planning as a more robust way to enhance resilience and prepare cities for unexpected future crises.
文摘The primary theoretical framework of the Sciences of Human Settlements was established based on the researches and practices for decades. Nowadays, it is facing a new start in order to face the challenges of "transformation" and "restructuring" amid the process of urbanization. It means that, in both the theoretical and practical fields of the Sciences of Human Settlements, due attention should be paid to the discussions on urbanization strategies, the rethinking on balanced urban-rural development, the extension and integration of various disciplines, and the realization of experimental projects in various localities. The Sciences of Human Settlements should be more closely connected with related sciences and technologies and learn more from the traditional "Chinese wisdom," so as to establish the system of "Grand Science, Grand Humanism and Grand Arts." The practice of the Sciences of Human Settlements should highlight the integration of both strategies and methodologies, the completion of institutions, and the monitoring at the macro-level. Both the top-down strategic planning and design and the bottom-up comprehensive community construction are necessary. Now that the times of great transition brings us an opportunity to solve problems creatively, the Sciences of Human Settlements should be further researched and explored.
基金supported by the project of the PetroChina Research Institute of Petroleum Exploration and Development(2016yj01)the National Science and Technology Major Project of China(No.2016ZX05046-003).
文摘The oil in the Jurassic Da'anzhai reservoirs in the Sichuan Basin is unconventional tight oil,which accumulated in or near source rocks,and did not experience extensive migration in a large-scale long distance.The first submember,second submember and third submember of Da'anzhai Member are dominated by shell limestone which is widely and continuously distributed,and are typical near-source lacustrine shell limestone tight reservoirs.Complex lithology,multiple types of reservoir space and complicated pore structure are developed in these reservoirs.The effective reservoir space mainly includes micro-pores and micro-fractures with strong fabric selectivity.The petrophysics experiment reveals that the average connected matrix porosity of tight oil reservoir in Jurassic Da'anzhai Member is about 2.13%,lower than that of other tight oil reservoirs but higher than the average effective porosity(0.97%)from previous single alcohol-saturated method.According to production performance data,the Da'anzhai shell limestone reservoir is not a simple porous or fractured reservoir,but has complex porethroat-fracture association or storage-seepage mode.Because the development of fossil shells controls the development of micro-fractures,fluids are difficult to enter into but easy to escape from the reservoirs.Although the pore-throat is fine,the sorting is poor and the displacement pressure is high,the movable fluid saturation and mercury ejection efficiency of the reservoir in the Da'anzhai Member is only slightly lower than that of some storage-seepage modes,and higher than that of Oil-bearing Group 7 of Yanchang Formation in the Ordos Basin.The reservoir in the Da'anzhai Member is one of the few tight oil reservoirs with high natural productivity.The tight oil in the shell limestone of the Da'anzhai Member has great development potential,but its extensive and effective development also has some challenges,such as high seepage resistance of matrix and ineffective single development mode.The development mode of the Da'anzhai tight oil should draw lessons from the Bakken Formation in North America and Oil-bearing Gourp 7 of Yanchang Formation in the Ordos Basin,and thus,effective development technologies based on volume fracturing and fine operation for shell limestone tight oil in the Da'anzhai Member in Sichuan Basin are developed to realize the development of profit and scale.
文摘Targeted at the dynamic demands in the rapid urban construction, the planning technology strategy of the Shenzhen International Low Carbon City studies the fl exible index model based on carbon emission evaluation, and adopts rolling development and micro-circulation construction mode to achieve quick returns with small investment. Meanwhile, it also evaluates the application of low carbon technology and gives feedback in time, so as to constantly optimize and complete the low carbon city planning. In detail, it involves industrial planning, ecological restoration, transport planning, energy resource planning, architectural design, etc., for which appropriate approaches are selected according to the principle of rolling development of unit cells and based on different requirements of different stages. The quick-response and fl exible technology system can help the low carbon city to choose an appropriate technology strategy in line with its own characteristics in the start-up stage and rapid development, thus realizing the sustainable leap-forward development and providing reference for other similar regions.