Purpose-This study aims to research the large cross-section tunnel stability evaluation method corrected after considering the thickness-span ratio.Design/methodology/approach-First,taking the Liuyuan Tunnel of Huangg...Purpose-This study aims to research the large cross-section tunnel stability evaluation method corrected after considering the thickness-span ratio.Design/methodology/approach-First,taking the Liuyuan Tunnel of Huanggang-Huangmei High-Speed Railway as an example and taking deflection of the third principal stress of the surrounding rock at a vault after tunnel excavation as the criterion,the critical buried depth of the large section tunnel was determined.Then,the strength reduction method was employed to calculate the tunnel safety factor under different rock classes and thickness-span ratios,and mathematical statistics was conducted to identify the relationships of the tunnel safety factor with the thickness-span ratio and the basic quality(BQ)index of the rock for different rock classes.Finally,the influences of thickness-span ratio,groundwater,initial stress of rock and structural attitude factors were considered to obtain the corrected BQ,based on which the stability of a large cross-section tunnel with a depth of more than 100 m during mechanized operation was analyzed.This evaluation method was then applied to Liuyuan Tunnel and Cimushan No.2 Tunnel of Chongqing Urban Expressway for verification.Findings-This study shows that under different rock classes,the tunnel safety factor is a strict power function of the thickness-span ratio,while a linear function of the BQ to some extent.It is more suitable to use the corrected BQ as a quantitative index to evaluate tunnel stability according to the actual conditions of the site.Originality/value-The existing industry standards do not consider the influence of buried depth and span in the evaluation of tunnel stability.The stability evaluation method of large section tunnel considering the correction of overburden span ratio proposed in this paper achieves higher accuracy for the stability evaluation of surrounding rock in a full or large-section mechanized excavation of double line high-speed railway tunnels.展开更多
Belarus is China's all-weather strategic cooperative partner,and agricultural cooperation is a dynamic and important area of bilateral relations.Despite the limited economic scale with a GDP of USD 75.96 billion i...Belarus is China's all-weather strategic cooperative partner,and agricultural cooperation is a dynamic and important area of bilateral relations.Despite the limited economic scale with a GDP of USD 75.96 billion in 2024,Belarus has significant agricultural advantages.It has natural resources and policy support suitable for agriculture,a strong agricultural foundation,and widespread mechanized operations.展开更多
All-optical image processing has been viewed as a promising technique for its high computation speed and low power consumption.However,current methods are often restricted to few functionalities and low reconfigurabil...All-optical image processing has been viewed as a promising technique for its high computation speed and low power consumption.However,current methods are often restricted to few functionalities and low reconfigurabilities,which cannot meet the growing demand for device integration and scenario adaptation in next-generation vision regimes.Here,we propose and experimentally demonstrate a bilayer liquid crystal computing platform for reconfigurable image processing.Under different in-situ/ex-situ twisted/untwisted conditions of the layers,our approach allows for eight kinds of image processing functions,including one/two-channel bright field imaging,one/two-channel vortex filtering,horizontally/vertically one-dimensional edge detection,vertex detection,and photonic spin Hall effect-based resolution adjustable edge detection.A unified theoretical framework for this scheme is established on the transfer function theory,which coincides well with the experimental results.The proposed method offers an easily-switchable multi-functional solution to optical image processing by introducing mechanical degrees of freedom,which may enable emerging applications in computer vision,autonomous driving,and biomedical microscopy.展开更多
In the context of the rapid advancement of intelligent manufacturing,ensuring the alignment of the skill levels of embedded system developers with industry requirements has emerged as a crucial aspect in the reform of...In the context of the rapid advancement of intelligent manufacturing,ensuring the alignment of the skill levels of embedded system developers with industry requirements has emerged as a crucial aspect in the reform of vocational education.This research delves into a three-stage progressive talent cultivation model denoted as“Cultivation–Growth–Incubation”,which is founded on the Shi Zhenjiang(Z.S.)Intelligent Embedded System Development Master Skills Studio.By means of hierarchical training,project-driven strategies,and industry-academia cooperation,this model effectively elevates students’application capabilities and innovative competencies in embedded systems.Case analyses illustrate the practical efficacy of the model,providing valuable references for the establishment of master skills studios in vocational education.展开更多
The research performed analysis on causes of asymmetric information of agricultural product supply chain and made conclusion on operation mechanism and characteristics of supply chain based on asymmetric information. ...The research performed analysis on causes of asymmetric information of agricultural product supply chain and made conclusion on operation mechanism and characteristics of supply chain based on asymmetric information. Finally, the research detailed profit sharing of agricultural product supply chain in the context of asymmetric information and proposed suggestions, providing references of pricing and profit sharing of supply chains of agricultural products.展开更多
Verbs of creation in English and Chinese demonstrate asymmetries in its projection to double-object construction. But underling the projection process there is a uniform operation mechanism, namely that the configurat...Verbs of creation in English and Chinese demonstrate asymmetries in its projection to double-object construction. But underling the projection process there is a uniform operation mechanism, namely that the configuration is affected by the interaction between the Meaning Assignment Principle （MAP）, the Distance Principle of Iconicity （DPI） and the Lexical Feature Constraints （LFC）, among which MAP and DPI are inviolable due to its cross-linguistic universality. Once LFC is violated, there must be compensation on the part of DPI, otherwise, the verb of creation in question would be unacceptable to double-object construction.展开更多
With the objective of building a well-off society in an all-round way reaching the decisive stage,poverty alleviation enters the final stage,and rural financial poverty alleviation is increasingly becoming a hot topic...With the objective of building a well-off society in an all-round way reaching the decisive stage,poverty alleviation enters the final stage,and rural financial poverty alleviation is increasingly becoming a hot topic of various circles of society. In order to accelerate the poverty alleviation and provide references and recommendations for further development of theory and practice of financial poverty alleviation,this paper made an overview of the organization system,operation mechanism and service products of rural financial poverty alleviation,elaborated the development path of financial poverty alleviation,and came up with recommendations for financial poverty alleviation.展开更多
With the continuous advancement of economic globalization,energy demand is expanding and energy consumption is excessive,which leads to energy shortage.Unreasonable energy use also brings great challenges to the envir...With the continuous advancement of economic globalization,energy demand is expanding and energy consumption is excessive,which leads to energy shortage.Unreasonable energy use also brings great challenges to the environment and affects the balance of the ecosystem seriously.The rise of the third industrial revolution has injected new vitality into energy system.The construction of energy Internet system,which integrates Internet technology and energy technology,has become a new energy system of sustainable development.It has put forward the reform scheme for the mismatch of energy demand points and environmental pollution.The deepening of sustainable development strategy accelerates the promotion of energy Internet system,promotes the large-scale utilization and sharing of renewable energy.It also provides a new idea for realizing green energy structure and efficient energy utilization.Firstly,based on the core concept of energy Internet system,this paper reviews the relevant research on energy Internet system in academic and industrial circles,and gives the preliminary definition of energy Internet system market.On this basis,it puts forward the development goal of energy Internet system market.It compares the new energy Internet system market with the traditional single energy market,highlighting the characteristics of energy Internet system market,it is reflected in the diversified transformation of market trading subjects,the diversification of market trading objects,the increasing dependence of information technology and the improvement of the matching degree of supply and demand.Then,the integrated architecture of of the energy Internet system market is carried out,and the issues related to the transaction mode and operation mechanism of the energy Internet system market are discussed.Finally,the frontier problems of energy Internet system market are summarized,and the research prospect of energy Internet system market is put forward.展开更多
Agricultural tridimensional pollution(AtriP)has multi-directional and complicated chains.Circular economy is found to be an efficient mechanism that can help control AtriP.The application of three circular economic mo...Agricultural tridimensional pollution(AtriP)has multi-directional and complicated chains.Circular economy is found to be an efficient mechanism that can help control AtriP.The application of three circular economic modes in agriculture and its related industries call not only interdict the AtriP chains in different stages and different directions,but also produce greater ecological,social and economical returns with less input.Nevertheless,it is a complicated systematic engineering to construct and implement effective circular economic modes to bring AtriP under control,and it depends not only on the support of the relevant technology system,but also on the supports of the relevant policies and law systems.展开更多
As an universal bus technology at present time,I^(2)C has been widely used in the interface between CPU and other devices such as EEPROM,RTC and small LCD.The architecture of I^(2)C driver,the relationship of some imp...As an universal bus technology at present time,I^(2)C has been widely used in the interface between CPU and other devices such as EEPROM,RTC and small LCD.The architecture of I^(2)C driver,the relationship of some important data structure and the operation mechanism of the I^(2)C driver have been analyzed.Finally,by taking an EEPROM chip named AT24C08 as a specific example,the flow of how to develop an I^(2)C device driver is illustrated.In addition,the design of a new driver mode of single device with multi-drivers is realized.展开更多
Based on the theory of ecological organization,this paper analyzes the operation mechanism of chemical industry park(CIP)ecosystem by means of dynamic simulation.The research shows that the CIP ecosystem is a complex ...Based on the theory of ecological organization,this paper analyzes the operation mechanism of chemical industry park(CIP)ecosystem by means of dynamic simulation.The research shows that the CIP ecosystem is a complex ecological system whose operation mechanism includes two levels,namely individual enterprises and ecosystem.At the level of individual enterprise,there are competition,symbiosis,invasion and other interactions between enterprises in the CIP ecosystem.Through the pre-determined judgment of the competition effect coefficient and the symbiosis effect coefficient,we calculate how the enterprises influence each other,and then generate their respective operation paths,andfinally realize the long-term balance of the system.At the level of ecosystem,the CIP ecosystem makes self-organizing and self-adaptive adjustments and changes due to the changes of the exter-nal environment in policy,manpower,technology,capital,market,etc.,thus reaching the equilibrium state of coordinated operation and stable symbiosis with the external environment.展开更多
Enterprise＇s post monetization management is one of the important achievements of business management innovation. The paper defines the meaning of enterprise＇s post monetization management mechanism, which includes ...Enterprise＇s post monetization management is one of the important achievements of business management innovation. The paper defines the meaning of enterprise＇s post monetization management mechanism, which includes benefit, supply, demand, competition and incentive mechanism, and specifically explains the meaning and function of each subsystem in order to profoundly crystallize and grasp the importance of enterprise＇s post monetization management in the aspect of raising business management level.展开更多
Stable operating region in the HL-1M tokamak has been extended by means of wall conditioning, core fuelling and current control techniques. The mechanisms of the extension are analyzed in this paper. Lithiumization di...Stable operating region in the HL-1M tokamak has been extended by means of wall conditioning, core fuelling and current control techniques. The mechanisms of the extension are analyzed in this paper. Lithiumization diminishes the impurities and hydrogen recycling to the lowest level. After lithiumization a high density up to 7×1019 m-3 was obtained easily by strong gas puffing with ordinary ohmic discharge alone. More attractively we found that metal Li-coating exhibited the effects of wall stabilization. The low qα limit with higher density was extended by a factor of 1.5-2 in comparison with that for boronization, and 1.2 for siliconization. Siliconization not only extended stable operating region significantly by itself, but also provided a good target plasma for other experiments of raising density limit. Core fuelling schemes are favourable especially for siliconized wall with a higher level of medium-Z impurity (Z = 14). After siliconization the maximum density near to 1020 m-3 was achieved by a combination of supersonic molecule beam injection and multipellet injection. The new defined slope of Hugill limit illustrating more clearly the situation under low qα and high ne discharges was created to indicate the new region extended by combining IP ramp-up with core fuelling. The slope with a large Murakami coefficient increased by a factor of 50-60 %.展开更多
This paper studies the operation mechanism of crowdfunding for rural tourism from three aspects:the main body of crowdfunding for rural tourism,driving factors and operating stage.At the same time,this paper analyzes ...This paper studies the operation mechanism of crowdfunding for rural tourism from three aspects:the main body of crowdfunding for rural tourism,driving factors and operating stage.At the same time,this paper analyzes the operation risk of crowdfunding for rural tourism from five aspects:legal risk,information asymmetry risk,capital security risk,interest subject conflict risk and industry development risk.It also puts forward measures and suggestions on the promotion of crowdfunding for rural tourism from four aspects:improving market awareness,providing professional services,issuing relevant laws and regulations and regulating the development of the industry.展开更多
The China National Textiles I/E Corp (Chinatex), one of the foreign trade companies in the country with the biggest import and export value, exported more textiles and expanded its business at home and abroad in 1994,...The China National Textiles I/E Corp (Chinatex), one of the foreign trade companies in the country with the biggest import and export value, exported more textiles and expanded its business at home and abroad in 1994, in spite of the shortage of raw materials and the rise in prices. Chinatex’s import and export value totalled US$2.718 billion last year, a rise of 43.9% over the previous year. The quality of the exports also improved. The company’s Beijing branch exported US$370 million worth of goods, 33.3% more than in the previous year. Its enterprises abroad had a turnover of US$1 billion in 1994.展开更多
Healthy development of agricultural science and technology parks needs perfect operation mechanism. On the basis of current situations,this paper came up with several safeguard measures for improving the operation mec...Healthy development of agricultural science and technology parks needs perfect operation mechanism. On the basis of current situations,this paper came up with several safeguard measures for improving the operation mechanism of agricultural science and technology parks,mainly including organization operation mechanism,technological guarantee mechanism,fund guarantee mechanism,and talent guarantee mechanism.展开更多
The operating mechanism refers to the structural setup, component assembly and inspection maintenance of the safeguards and its efficient operation. Health insurance management mechanism refers to the effective combin...The operating mechanism refers to the structural setup, component assembly and inspection maintenance of the safeguards and its efficient operation. Health insurance management mechanism refers to the effective combination, governance, operation, evaluation and improvement of medical service stakeholders. It is a series of institutional arrangements to effectively provide medical services and safeguard the interests of beneficiaries.＂展开更多
Developing the catastrophic medical insurance for urban and rural residents positively is the key action to keep the new round of reform for medical system into deep. However this insurance is the ＇shortage＇ of the ...Developing the catastrophic medical insurance for urban and rural residents positively is the key action to keep the new round of reform for medical system into deep. However this insurance is the ＇shortage＇ of the national health system, so the Shanghai government carries out The Trial Measures for Catastrophic Medical Insurance of urban and rural residents in 2014. In this thesis, we will describe the current situation of the catastrophic medical insurance in Shanghai from aspects of financing, level of compensation, the way to undertake and regulatory. What＇s more, we expect to explore the weakness of catastrophic medical insurance in actual motion, and offer proposals for progressively realizing the integration of urban and rural in medical insurance, improving the basic health care directory, enhancing cooperation with commercial medical insurance.展开更多
By analyzing the situations,characteristics and majorproblems affecting Guangzhou's process of standardization,thispaper proposes a new operation mechanism.It is to be built withthe Guangzhou Standardization Leadi...By analyzing the situations,characteristics and majorproblems affecting Guangzhou's process of standardization,thispaper proposes a new operation mechanism.It is to be built withthe Guangzhou Standardization Leading Group at its core.TheGuangzhou Institute of Standardization should supply technical support,trade associations should act as a bridge between manufacturersand the government to active participation by the majority of enterprisesand society generally.展开更多
基金supported by the NSFC HSR Fundamental Research Joint Fund (Grant No.U1934213)。
文摘Purpose-This study aims to research the large cross-section tunnel stability evaluation method corrected after considering the thickness-span ratio.Design/methodology/approach-First,taking the Liuyuan Tunnel of Huanggang-Huangmei High-Speed Railway as an example and taking deflection of the third principal stress of the surrounding rock at a vault after tunnel excavation as the criterion,the critical buried depth of the large section tunnel was determined.Then,the strength reduction method was employed to calculate the tunnel safety factor under different rock classes and thickness-span ratios,and mathematical statistics was conducted to identify the relationships of the tunnel safety factor with the thickness-span ratio and the basic quality(BQ)index of the rock for different rock classes.Finally,the influences of thickness-span ratio,groundwater,initial stress of rock and structural attitude factors were considered to obtain the corrected BQ,based on which the stability of a large cross-section tunnel with a depth of more than 100 m during mechanized operation was analyzed.This evaluation method was then applied to Liuyuan Tunnel and Cimushan No.2 Tunnel of Chongqing Urban Expressway for verification.Findings-This study shows that under different rock classes,the tunnel safety factor is a strict power function of the thickness-span ratio,while a linear function of the BQ to some extent.It is more suitable to use the corrected BQ as a quantitative index to evaluate tunnel stability according to the actual conditions of the site.Originality/value-The existing industry standards do not consider the influence of buried depth and span in the evaluation of tunnel stability.The stability evaluation method of large section tunnel considering the correction of overburden span ratio proposed in this paper achieves higher accuracy for the stability evaluation of surrounding rock in a full or large-section mechanized excavation of double line high-speed railway tunnels.
文摘Belarus is China's all-weather strategic cooperative partner,and agricultural cooperation is a dynamic and important area of bilateral relations.Despite the limited economic scale with a GDP of USD 75.96 billion in 2024,Belarus has significant agricultural advantages.It has natural resources and policy support suitable for agriculture,a strong agricultural foundation,and widespread mechanized operations.
基金supported in part by the National Natural Science Foundation of China(12421005,12374273,and 61805077)in part by the Natural Science Foundation of Hunan Province(2025JJ50046)in part by the Hunan Provincial Major Sci-Tech Program(2023ZJ1010)。
文摘All-optical image processing has been viewed as a promising technique for its high computation speed and low power consumption.However,current methods are often restricted to few functionalities and low reconfigurabilities,which cannot meet the growing demand for device integration and scenario adaptation in next-generation vision regimes.Here,we propose and experimentally demonstrate a bilayer liquid crystal computing platform for reconfigurable image processing.Under different in-situ/ex-situ twisted/untwisted conditions of the layers,our approach allows for eight kinds of image processing functions,including one/two-channel bright field imaging,one/two-channel vortex filtering,horizontally/vertically one-dimensional edge detection,vertex detection,and photonic spin Hall effect-based resolution adjustable edge detection.A unified theoretical framework for this scheme is established on the transfer function theory,which coincides well with the experimental results.The proposed method offers an easily-switchable multi-functional solution to optical image processing by introducing mechanical degrees of freedom,which may enable emerging applications in computer vision,autonomous driving,and biomedical microscopy.
基金The 2025 Guangdong Polytechnic College Innovation-driven School Strengthening Project“Construction of Shi Zhenjiang’s Master Studio for Intelligent Embedded System Development Skills”(Project No.:2025CQ06-05)。
文摘In the context of the rapid advancement of intelligent manufacturing,ensuring the alignment of the skill levels of embedded system developers with industry requirements has emerged as a crucial aspect in the reform of vocational education.This research delves into a three-stage progressive talent cultivation model denoted as“Cultivation–Growth–Incubation”,which is founded on the Shi Zhenjiang(Z.S.)Intelligent Embedded System Development Master Skills Studio.By means of hierarchical training,project-driven strategies,and industry-academia cooperation,this model effectively elevates students’application capabilities and innovative competencies in embedded systems.Case analyses illustrate the practical efficacy of the model,providing valuable references for the establishment of master skills studios in vocational education.
基金Supported by S&T Development Strategy Program of Tianjin(15ZLZLZF00210)S&T Development Strategy Program of Tianjin(15ZLZLZF00390)~~
文摘The research performed analysis on causes of asymmetric information of agricultural product supply chain and made conclusion on operation mechanism and characteristics of supply chain based on asymmetric information. Finally, the research detailed profit sharing of agricultural product supply chain in the context of asymmetric information and proposed suggestions, providing references of pricing and profit sharing of supply chains of agricultural products.
文摘Verbs of creation in English and Chinese demonstrate asymmetries in its projection to double-object construction. But underling the projection process there is a uniform operation mechanism, namely that the configuration is affected by the interaction between the Meaning Assignment Principle （MAP）, the Distance Principle of Iconicity （DPI） and the Lexical Feature Constraints （LFC）, among which MAP and DPI are inviolable due to its cross-linguistic universality. Once LFC is violated, there must be compensation on the part of DPI, otherwise, the verb of creation in question would be unacceptable to double-object construction.
基金Supported by Bidding Project for Social Science Foundation of Hebei Agricultural University in 2017(ZB201702)Key Project of Humanities and Social Science Foundation of Hebei Provincial Department of Education(ZD201713)Social Science Foundation Project of Hebei Agricultural University(SK201604)
文摘With the objective of building a well-off society in an all-round way reaching the decisive stage,poverty alleviation enters the final stage,and rural financial poverty alleviation is increasingly becoming a hot topic of various circles of society. In order to accelerate the poverty alleviation and provide references and recommendations for further development of theory and practice of financial poverty alleviation,this paper made an overview of the organization system,operation mechanism and service products of rural financial poverty alleviation,elaborated the development path of financial poverty alleviation,and came up with recommendations for financial poverty alleviation.
文摘With the continuous advancement of economic globalization,energy demand is expanding and energy consumption is excessive,which leads to energy shortage.Unreasonable energy use also brings great challenges to the environment and affects the balance of the ecosystem seriously.The rise of the third industrial revolution has injected new vitality into energy system.The construction of energy Internet system,which integrates Internet technology and energy technology,has become a new energy system of sustainable development.It has put forward the reform scheme for the mismatch of energy demand points and environmental pollution.The deepening of sustainable development strategy accelerates the promotion of energy Internet system,promotes the large-scale utilization and sharing of renewable energy.It also provides a new idea for realizing green energy structure and efficient energy utilization.Firstly,based on the core concept of energy Internet system,this paper reviews the relevant research on energy Internet system in academic and industrial circles,and gives the preliminary definition of energy Internet system market.On this basis,it puts forward the development goal of energy Internet system market.It compares the new energy Internet system market with the traditional single energy market,highlighting the characteristics of energy Internet system market,it is reflected in the diversified transformation of market trading subjects,the diversification of market trading objects,the increasing dependence of information technology and the improvement of the matching degree of supply and demand.Then,the integrated architecture of of the energy Internet system market is carried out,and the issues related to the transaction mode and operation mechanism of the energy Internet system market are discussed.Finally,the frontier problems of energy Internet system market are summarized,and the research prospect of energy Internet system market is put forward.
文摘Agricultural tridimensional pollution(AtriP)has multi-directional and complicated chains.Circular economy is found to be an efficient mechanism that can help control AtriP.The application of three circular economic modes in agriculture and its related industries call not only interdict the AtriP chains in different stages and different directions,but also produce greater ecological,social and economical returns with less input.Nevertheless,it is a complicated systematic engineering to construct and implement effective circular economic modes to bring AtriP under control,and it depends not only on the support of the relevant technology system,but also on the supports of the relevant policies and law systems.
文摘As an universal bus technology at present time,I^(2)C has been widely used in the interface between CPU and other devices such as EEPROM,RTC and small LCD.The architecture of I^(2)C driver,the relationship of some important data structure and the operation mechanism of the I^(2)C driver have been analyzed.Finally,by taking an EEPROM chip named AT24C08 as a specific example,the flow of how to develop an I^(2)C device driver is illustrated.In addition,the design of a new driver mode of single device with multi-drivers is realized.
文摘Based on the theory of ecological organization,this paper analyzes the operation mechanism of chemical industry park(CIP)ecosystem by means of dynamic simulation.The research shows that the CIP ecosystem is a complex ecological system whose operation mechanism includes two levels,namely individual enterprises and ecosystem.At the level of individual enterprise,there are competition,symbiosis,invasion and other interactions between enterprises in the CIP ecosystem.Through the pre-determined judgment of the competition effect coefficient and the symbiosis effect coefficient,we calculate how the enterprises influence each other,and then generate their respective operation paths,andfinally realize the long-term balance of the system.At the level of ecosystem,the CIP ecosystem makes self-organizing and self-adaptive adjustments and changes due to the changes of the exter-nal environment in policy,manpower,technology,capital,market,etc.,thus reaching the equilibrium state of coordinated operation and stable symbiosis with the external environment.
文摘Enterprise＇s post monetization management is one of the important achievements of business management innovation. The paper defines the meaning of enterprise＇s post monetization management mechanism, which includes benefit, supply, demand, competition and incentive mechanism, and specifically explains the meaning and function of each subsystem in order to profoundly crystallize and grasp the importance of enterprise＇s post monetization management in the aspect of raising business management level.
文摘Stable operating region in the HL-1M tokamak has been extended by means of wall conditioning, core fuelling and current control techniques. The mechanisms of the extension are analyzed in this paper. Lithiumization diminishes the impurities and hydrogen recycling to the lowest level. After lithiumization a high density up to 7×1019 m-3 was obtained easily by strong gas puffing with ordinary ohmic discharge alone. More attractively we found that metal Li-coating exhibited the effects of wall stabilization. The low qα limit with higher density was extended by a factor of 1.5-2 in comparison with that for boronization, and 1.2 for siliconization. Siliconization not only extended stable operating region significantly by itself, but also provided a good target plasma for other experiments of raising density limit. Core fuelling schemes are favourable especially for siliconized wall with a higher level of medium-Z impurity (Z = 14). After siliconization the maximum density near to 1020 m-3 was achieved by a combination of supersonic molecule beam injection and multipellet injection. The new defined slope of Hugill limit illustrating more clearly the situation under low qα and high ne discharges was created to indicate the new region extended by combining IP ramp-up with core fuelling. The slope with a large Murakami coefficient increased by a factor of 50-60 %.
基金Supported by The 12 th Batch of Teaching Reform Research Project of Taishan University(201902).
文摘This paper studies the operation mechanism of crowdfunding for rural tourism from three aspects:the main body of crowdfunding for rural tourism,driving factors and operating stage.At the same time,this paper analyzes the operation risk of crowdfunding for rural tourism from five aspects:legal risk,information asymmetry risk,capital security risk,interest subject conflict risk and industry development risk.It also puts forward measures and suggestions on the promotion of crowdfunding for rural tourism from four aspects:improving market awareness,providing professional services,issuing relevant laws and regulations and regulating the development of the industry.
文摘The China National Textiles I/E Corp (Chinatex), one of the foreign trade companies in the country with the biggest import and export value, exported more textiles and expanded its business at home and abroad in 1994, in spite of the shortage of raw materials and the rise in prices. Chinatex’s import and export value totalled US$2.718 billion last year, a rise of 43.9% over the previous year. The quality of the exports also improved. The company’s Beijing branch exported US$370 million worth of goods, 33.3% more than in the previous year. Its enterprises abroad had a turnover of US$1 billion in 1994.
基金Supported by Social Science Foundation Project of Shaanxi Province"Social Survey of the Northwest in the Period of the Republic of China"(2016H009)
文摘Healthy development of agricultural science and technology parks needs perfect operation mechanism. On the basis of current situations,this paper came up with several safeguard measures for improving the operation mechanism of agricultural science and technology parks,mainly including organization operation mechanism,technological guarantee mechanism,fund guarantee mechanism,and talent guarantee mechanism.
文摘The operating mechanism refers to the structural setup, component assembly and inspection maintenance of the safeguards and its efficient operation. Health insurance management mechanism refers to the effective combination, governance, operation, evaluation and improvement of medical service stakeholders. It is a series of institutional arrangements to effectively provide medical services and safeguard the interests of beneficiaries.＂
文摘Developing the catastrophic medical insurance for urban and rural residents positively is the key action to keep the new round of reform for medical system into deep. However this insurance is the ＇shortage＇ of the national health system, so the Shanghai government carries out The Trial Measures for Catastrophic Medical Insurance of urban and rural residents in 2014. In this thesis, we will describe the current situation of the catastrophic medical insurance in Shanghai from aspects of financing, level of compensation, the way to undertake and regulatory. What＇s more, we expect to explore the weakness of catastrophic medical insurance in actual motion, and offer proposals for progressively realizing the integration of urban and rural in medical insurance, improving the basic health care directory, enhancing cooperation with commercial medical insurance.
文摘By analyzing the situations,characteristics and majorproblems affecting Guangzhou's process of standardization,thispaper proposes a new operation mechanism.It is to be built withthe Guangzhou Standardization Leading Group at its core.TheGuangzhou Institute of Standardization should supply technical support,trade associations should act as a bridge between manufacturersand the government to active participation by the majority of enterprisesand society generally.
