With the progress of aging,the incidence of vascular calcification(VC)gradually increases,which is correlated with cardiovascular events and all-cause death,aggravating global clinical burden.Over the past several dec...With the progress of aging,the incidence of vascular calcification(VC)gradually increases,which is correlated with cardiovascular events and all-cause death,aggravating global clinical burden.Over the past several decades,accumulating approaches targeting the underlying pathogenesis of VC have provided some possibilities for the treatment of VC.Unfortunately,none of the current interventions have achieved clinical effectiveness on reversing or curing VC.The purpose of this review is to make a summary of novel perspectives on the interventions of VC and provide reference for clinical decision-making.展开更多
[Objective] For preparing the biopesticide of Bacillus subtilis B579 with high spore concentration,the sporulation conditions were optimized.[Method] Two-step fermentation control strategy was used,in which,the first ...[Objective] For preparing the biopesticide of Bacillus subtilis B579 with high spore concentration,the sporulation conditions were optimized.[Method] Two-step fermentation control strategy was used,in which,the first phase（0-10 h）was to improve cell growth,and the second phase（10-30 h）was to promote spore formation.Four factors including initial glucose concentration,fermentation pH,temperature（in the second phase）and shaking speed（in the second phase）were optimized using the methods of single factor test and orthogonal experiment.[Result] The initial glucose concentration showed a significant effect on sporulation.The optimal conditions for the spore formation of B.subtilis B579 were as follows：initial glucose concentration 5 g/L,fermentation pH 7.0,the temperature for the first phase 37 ℃,and the shaking speed for the first phase 180 r/min,the temperature for the second phase 40 ℃,and the shaking speed for the second phase 200 r/min;in addition,the first phase was 10 h and the second phase of fermentation was conducted for 30 h.Under such conditions,the spore concentration and spore formation rate could reach 9.43×108 CFU/ml and 90.99%,respectively,which represented 6.70-fold and 2.43-fold increase compared with those before optimization.[Conclusion] The spores concentration of biocontrol agent was improved using two-step control strategy,which provided the basis for biopesticide production in large scale.展开更多
The development characteristics of Semiothisa cinerearia Bremer ＆ Grey was summarized, and we also put forward the control measures of well completing insect surveys to provide scientific basis for the control and ac...The development characteristics of Semiothisa cinerearia Bremer ＆ Grey was summarized, and we also put forward the control measures of well completing insect surveys to provide scientific basis for the control and actively carrying out comprehensive management to control the pests damage in the economic permissible level.展开更多
The ultra-supercritical pressure coal-fired power-generation technology (USCT) isa mature, advanced and efficient power generation technology in the world. Comparisonsamong several principal clean coal power-generatio...The ultra-supercritical pressure coal-fired power-generation technology (USCT) isa mature, advanced and efficient power generation technology in the world. Comparisonsamong several principal clean coal power-generation technologies show that USCT withpollutant-emission control equipment is superior to others in efficiency, capacity, reliability,investment and environment protection etc. Analyzing the main problems existing in thermalpower industry, it is concluded that the USCT is the preferential choice for China to developclean coal power-generation technology at present. Considering the foundation of thepower industry, the manufacturing industry for power generating equipment and otherrelated industries, it is concluded that China has satisfied the qualifications to develop USCT.展开更多
The construction of Hainan International Tourism Island creates a promising prospect for the development of its tropical leisure agro-tourism, and the latter will contribute a lot to the former in the fields of econom...The construction of Hainan International Tourism Island creates a promising prospect for the development of its tropical leisure agro-tourism, and the latter will contribute a lot to the former in the fields of economy, ecology and culture. The present situation and development prospects of tropical leisure agro-tourism in the context of constructing International Tourism Island in Hainan are introduced in this study, SWOT analysis of tropical leisure agro-tourism in Hainan is conducted, causes of imperfect tropical leisure agro-tourism in Hainan Island are elaborated such as insufficient understanding and investment, fragile infrastructure and lack of overall tourism planning despite its abundant tropical agricultural resources, marine resources, forest resources and ecological resources as well as convenient transportation. Combining with the opportunities and challenges in developing tourism industry, targeted strategies are proposed for promoting the tropical leisure agro-tourism, that is, enhancing understanding about leisure agro-tourism; determining the target and orientation of tourism planning through basic classification, properly defining functional divisions and spatial layout; improving relevant laws and regulations about tourism industry; attaching more importance in attracting alien investment; fully developing the tropical, marine, green and ecological features of tropical leisure agro-tourism in Hainan Island; cultivating resources, scenic spots and products of different types respectively in tourism development, especially culturing typical products; protecting ecological environment, implementing sustainable development of tourism industry; making innovations in marketing, accurately subdividing tourism market.展开更多
This paper presents a new approach to determining whether an interested personal name across doeuments refers to the same entity. Firstly,three vectors for each text are formed： the personal name Boolean vectors deno...This paper presents a new approach to determining whether an interested personal name across doeuments refers to the same entity. Firstly,three vectors for each text are formed： the personal name Boolean vectors denoting whether a personal name occurs the text the biographical word Boolean vector representing title, occupation and so forth, and the feature vector with real values. Then, by combining a heuristic strategy based on Boolean vectors with an agglomeratie clustering algorithm based on feature vectors, it seeks to resolve multi-document personal name coreference. Experimental results show that this approach achieves a good performance by testing on ＂Wang Gang＂ corpus.展开更多
The development pattern, development situation, and existing problems of land exploitation in Zigui County, Three Gorges Reservoir Areas of China were presented. The sustainable development mode and its strategy in th...The development pattern, development situation, and existing problems of land exploitation in Zigui County, Three Gorges Reservoir Areas of China were presented. The sustainable development mode and its strategy in the Three Gorges Reservoir Areas was also discussed. A sustainable development framework for low mountain regions, middle mountain regions and high mountain regions was developed, and management countermeasures for structural optimization of complex ecosystems were advanced.展开更多
The research analyzed advantages, disadvantages, opportunities and threats of tobacco production in Chenzhou and proposed a middIe and Iong-term objective for tobacco production, as weI as protection measures, providi...The research analyzed advantages, disadvantages, opportunities and threats of tobacco production in Chenzhou and proposed a middIe and Iong-term objective for tobacco production, as weI as protection measures, providing refer-ences for transformation, innovation and spanning deveIopment.展开更多
An optimal control strategy is proposed to improve the fermentation titer,which combines the support vector machine(SVM)with real code genetic algorithm(RGA).A prediction model is established with SVM for penicillin f...An optimal control strategy is proposed to improve the fermentation titer,which combines the support vector machine(SVM)with real code genetic algorithm(RGA).A prediction model is established with SVM for penicillin fermentation processes,and it is used in RGA for fitting function.A control pattern is proposed to overcome the coupling problem of fermentation parameters,which describes the overall production condition.Experimental results show that the optimal control strategy improves the penicillin titer of the fermentation process by 22.88%,compared with the routine operation.展开更多
Network virtualization(NV) is considered as an enabling tool to remove the gradual ossification of current Internet. In the network virtualization environment, a set of heterogeneous virtual networks(VNs), isolated fr...Network virtualization(NV) is considered as an enabling tool to remove the gradual ossification of current Internet. In the network virtualization environment, a set of heterogeneous virtual networks(VNs), isolated from each other, share the underlying resources of one or multiple substrate networks(SNs) according to the resource allocation strategy. This kind of resource allocation strategy is commonly known as so called Virtual Network Embedding(VNE) algorithm in network virtualization. Owing to the common sense that VNE problem is NP-hard in nature, most of VNE algorithms proposed in the literature are heuristic. This paper surveys and analyzes a number of representative heuristic solutions in the literature. Apart from the analysis of representative heuristic solutions, a taxonomy of the heuristic solutions is also presented in the form of table. Future research directions of VNE, especially for the heuristics, are emphasized and highlighted at the end of this survey.展开更多
The system of State Foodstuff Security is a comprehensively systematical framework, which needs concerted support and energetic cooperation from all walks of lives. This paper analyzes the strategies for State Foodstu...The system of State Foodstuff Security is a comprehensively systematical framework, which needs concerted support and energetic cooperation from all walks of lives. This paper analyzes the strategies for State Foodstuff Security： integrating new biological techniques with traditional methods, full utilization of soil with its protection, policies leading with market regulation, steady high yield with promoting additional value through further processing, general foodstuff production with substitute food seeking, domestic self-supply with international trade complementarities as well as short-term exploiting with long-term development on the basis of the increase of general foodstuff production capability.展开更多
文摘With the progress of aging,the incidence of vascular calcification(VC)gradually increases,which is correlated with cardiovascular events and all-cause death,aggravating global clinical burden.Over the past several decades,accumulating approaches targeting the underlying pathogenesis of VC have provided some possibilities for the treatment of VC.Unfortunately,none of the current interventions have achieved clinical effectiveness on reversing or curing VC.The purpose of this review is to make a summary of novel perspectives on the interventions of VC and provide reference for clinical decision-making.
基金Supported by the Natural Science Foundation of Tianjin(09JCZDJC19100)Scientific Research Fund of Tianjin Scienceand Technology University(20090403)~~
文摘[Objective] For preparing the biopesticide of Bacillus subtilis B579 with high spore concentration,the sporulation conditions were optimized.[Method] Two-step fermentation control strategy was used,in which,the first phase（0-10 h）was to improve cell growth,and the second phase（10-30 h）was to promote spore formation.Four factors including initial glucose concentration,fermentation pH,temperature（in the second phase）and shaking speed（in the second phase）were optimized using the methods of single factor test and orthogonal experiment.[Result] The initial glucose concentration showed a significant effect on sporulation.The optimal conditions for the spore formation of B.subtilis B579 were as follows：initial glucose concentration 5 g/L,fermentation pH 7.0,the temperature for the first phase 37 ℃,and the shaking speed for the first phase 180 r/min,the temperature for the second phase 40 ℃,and the shaking speed for the second phase 200 r/min;in addition,the first phase was 10 h and the second phase of fermentation was conducted for 30 h.Under such conditions,the spore concentration and spore formation rate could reach 9.43×108 CFU/ml and 90.99%,respectively,which represented 6.70-fold and 2.43-fold increase compared with those before optimization.[Conclusion] The spores concentration of biocontrol agent was improved using two-step control strategy,which provided the basis for biopesticide production in large scale.
文摘The development characteristics of Semiothisa cinerearia Bremer ＆ Grey was summarized, and we also put forward the control measures of well completing insect surveys to provide scientific basis for the control and actively carrying out comprehensive management to control the pests damage in the economic permissible level.
文摘The ultra-supercritical pressure coal-fired power-generation technology (USCT) isa mature, advanced and efficient power generation technology in the world. Comparisonsamong several principal clean coal power-generation technologies show that USCT withpollutant-emission control equipment is superior to others in efficiency, capacity, reliability,investment and environment protection etc. Analyzing the main problems existing in thermalpower industry, it is concluded that the USCT is the preferential choice for China to developclean coal power-generation technology at present. Considering the foundation of thepower industry, the manufacturing industry for power generating equipment and otherrelated industries, it is concluded that China has satisfied the qualifications to develop USCT.
基金Co-supported by National Soft Science Research Project"Forecasting the Influence of Constructing Hainan International Tourism Island on Its Tourism Natural Environment and Countermeasures Study"(2009GXS5D120)Hainan Provincial Natural Science Foundation Project"Influence of Constructing Hainan International Tourism Island on Its Tourism Natural Environment and Countermeasures"(70899)+1 种基金Hainan Provincial Philosophical and Social Science Planning Project"Study on the Relationship between Economic Growth and Ecological Environment"(HNSK08-03)Study Project of the Education Department of Hainan Province"Influence of Constructing Hainan International Tourism Island on Its Natural Tourism Environment"(Hjkj2009-02)~~
文摘The construction of Hainan International Tourism Island creates a promising prospect for the development of its tropical leisure agro-tourism, and the latter will contribute a lot to the former in the fields of economy, ecology and culture. The present situation and development prospects of tropical leisure agro-tourism in the context of constructing International Tourism Island in Hainan are introduced in this study, SWOT analysis of tropical leisure agro-tourism in Hainan is conducted, causes of imperfect tropical leisure agro-tourism in Hainan Island are elaborated such as insufficient understanding and investment, fragile infrastructure and lack of overall tourism planning despite its abundant tropical agricultural resources, marine resources, forest resources and ecological resources as well as convenient transportation. Combining with the opportunities and challenges in developing tourism industry, targeted strategies are proposed for promoting the tropical leisure agro-tourism, that is, enhancing understanding about leisure agro-tourism; determining the target and orientation of tourism planning through basic classification, properly defining functional divisions and spatial layout; improving relevant laws and regulations about tourism industry; attaching more importance in attracting alien investment; fully developing the tropical, marine, green and ecological features of tropical leisure agro-tourism in Hainan Island; cultivating resources, scenic spots and products of different types respectively in tourism development, especially culturing typical products; protecting ecological environment, implementing sustainable development of tourism industry; making innovations in marketing, accurately subdividing tourism market.
文摘This paper presents a new approach to determining whether an interested personal name across doeuments refers to the same entity. Firstly,three vectors for each text are formed： the personal name Boolean vectors denoting whether a personal name occurs the text the biographical word Boolean vector representing title, occupation and so forth, and the feature vector with real values. Then, by combining a heuristic strategy based on Boolean vectors with an agglomeratie clustering algorithm based on feature vectors, it seeks to resolve multi-document personal name coreference. Experimental results show that this approach achieves a good performance by testing on ＂Wang Gang＂ corpus.
文摘The development pattern, development situation, and existing problems of land exploitation in Zigui County, Three Gorges Reservoir Areas of China were presented. The sustainable development mode and its strategy in the Three Gorges Reservoir Areas was also discussed. A sustainable development framework for low mountain regions, middle mountain regions and high mountain regions was developed, and management countermeasures for structural optimization of complex ecosystems were advanced.
基金Supported by Special Foundation from Hunan Finance for Agriculture([2011]10)~~
文摘The research analyzed advantages, disadvantages, opportunities and threats of tobacco production in Chenzhou and proposed a middIe and Iong-term objective for tobacco production, as weI as protection measures, providing refer-ences for transformation, innovation and spanning deveIopment.
基金Supported by the National Natural Science Foundation of China（60704036）
文摘An optimal control strategy is proposed to improve the fermentation titer,which combines the support vector machine(SVM)with real code genetic algorithm(RGA).A prediction model is established with SVM for penicillin fermentation processes,and it is used in RGA for fitting function.A control pattern is proposed to overcome the coupling problem of fermentation parameters,which describes the overall production condition.Experimental results show that the optimal control strategy improves the penicillin titer of the fermentation process by 22.88%,compared with the routine operation.
基金supported by the National Natural Science Foundation of China under Grants 61372124 and 61401225the National Science Foundation of Jiangsu Province under Grant BK20140894the Postgraduate Research&Practice Innovation Program of Jiangsu Province under Grant KYCX17_0784
文摘Network virtualization(NV) is considered as an enabling tool to remove the gradual ossification of current Internet. In the network virtualization environment, a set of heterogeneous virtual networks(VNs), isolated from each other, share the underlying resources of one or multiple substrate networks(SNs) according to the resource allocation strategy. This kind of resource allocation strategy is commonly known as so called Virtual Network Embedding(VNE) algorithm in network virtualization. Owing to the common sense that VNE problem is NP-hard in nature, most of VNE algorithms proposed in the literature are heuristic. This paper surveys and analyzes a number of representative heuristic solutions in the literature. Apart from the analysis of representative heuristic solutions, a taxonomy of the heuristic solutions is also presented in the form of table. Future research directions of VNE, especially for the heuristics, are emphasized and highlighted at the end of this survey.
文摘The system of State Foodstuff Security is a comprehensively systematical framework, which needs concerted support and energetic cooperation from all walks of lives. This paper analyzes the strategies for State Foodstuff Security： integrating new biological techniques with traditional methods, full utilization of soil with its protection, policies leading with market regulation, steady high yield with promoting additional value through further processing, general foodstuff production with substitute food seeking, domestic self-supply with international trade complementarities as well as short-term exploiting with long-term development on the basis of the increase of general foodstuff production capability.
