Plant virus disease is one of the major causes of biological disasters in agriculture worldwide. Given the complexity of transmission media and plant disease infection mechanisms, the prevention and control of plant v...Plant virus disease is one of the major causes of biological disasters in agriculture worldwide. Given the complexity of transmission media and plant disease infection mechanisms, the prevention and control of plant viral diseases is a great challenge, and an efficient green pesticide is urgently needed. For this reason, when developing candidate drug leads to regulate plant viruses, pesticide experts have focused on characteristics such as low pesticide resistance, eco-friendliness, and novel mechanism. Researchers have also theoretically investigated the molecular targets of viruses infecting agricultural crops. Antiviral screening models have been constructed based on these molecular targets, and the mechanisms of commercial drugs and high-activity compounds have been extensively investigated. After screening, some compounds have been applied in the field and found to have good commercial prospects; these drugs may be used to create new green antiviral pesticides to control plant viruses. This paper reviews the screening, mode of action, development and application of recently used plant-based antiviral agents.展开更多
With the increase in energy demand, the demand for oil and gas transmission pipes, particularly high-grade longitudinal submerged arc welded pipes （LSAWs）, have been growing in recent years. The construction of the ...With the increase in energy demand, the demand for oil and gas transmission pipes, particularly high-grade longitudinal submerged arc welded pipes （LSAWs）, have been growing in recent years. The construction of the 2nd West -East natural gas transmission pipeline project shows that the oil and gas pipeline construction has entered a new phase of development with X80 pipes being applied in large scales for the first time in China. This paper briefly introduces the 2nd West-East natural gas transmission pipeline project and its main technical requirements with the focus on the features of API standard 5L X80 grade Ф 1219 mm series of U-ing-O-ing-Expanding （ UOE ） LSAW pipes, which Baosteel developed with the integrated technology for the 2nd West-East natural gas transmission pipeline project. The analysis shows the extra-low carbon content, the high contents of manganese and niobium, the fine microstructure, the high strength,the toughness and the good weldability of X80 pipes meet the requirements of ＂the technical specification of LSAW linepipes for the 2nd West-East natural gas transmission pipeline project in China＂. By the end of June 2010, Baosteel had totally produced 322000 t of Ф 1219 mm X80 UOE steel pipes, which have been successfully used in the 2nd West-East natural gas transmission pipeline project, thus filling the gap of the production of large diameter X80 UOE LSAW pipes in China.展开更多
Using mathematical plasticity theories, universal formability (UF) technology has been developed and applied in the automotive stamping engineering and production. As a formability analysis tool, this technology is th...Using mathematical plasticity theories, universal formability (UF) technology has been developed and applied in the automotive stamping engineering and production. As a formability analysis tool, this technology is the major methodology for the development of stamping expert system (solution provider) for (a) product design and feasibility analysis, (b) material automatic selection using nomograms, (c) draw die design using pre-models, and (d) UF and robustness analysis of die performance in finite element analysis (FEA) environment.展开更多
The research project'Development and application of FCC additive for maximization of propylene and isobutylene'jointly undertaken by RIPP,the Baling Petrochemical Company(BPC)and the SINOPEC
In order to improve the frequency and precision of radiometric calibration, the automated vicarious calibration system（AVCS） is developed and deployed at the Dunhuang test site to perform vicarious calibration witho...In order to improve the frequency and precision of radiometric calibration, the automated vicarious calibration system（AVCS） is developed and deployed at the Dunhuang test site to perform vicarious calibration without the in situ manned measurements. The surface and atmospheric parameters are automatically collected by AVCS.An absolute radiometric calibration approach based on AVCS is proposed. Six successful calibrations of the Aqua Moderate Resolution Imaging Spectroradiometer（MODIS） are conducted. The results are in good agreement with the on-board calibration system with all the relative differences less than 4%. It enables us to monitor the change of a sensor over long time scales.展开更多
Based on the principle of active sonar detection, a pipeline sonar system has been developed for detecting the water accumulated in underground gas-pipelines, and the effectiveness of this system verified through fiel...Based on the principle of active sonar detection, a pipeline sonar system has been developed for detecting the water accumulated in underground gas-pipelines, and the effectiveness of this system verified through field-testing. The working process, experimental results and some considerations in the determination of sonar parameters are described in this paper.展开更多
Tianiin CATARC Auto Hi-tech Company, approved by the State Planning and Developing Commission, is a manufacturing enterprise specialized in auto catalyst converters, which was listed in "The First Group Localizat...Tianiin CATARC Auto Hi-tech Company, approved by the State Planning and Developing Commission, is a manufacturing enterprise specialized in auto catalyst converters, which was listed in "The First Group Localization Projects for Environmental Protection Equipment in 1999". This company enjoys the perfect matching techniqueS for catalyst converter system, modern manufacturing shops and world-level labs. The annual production capacity is 300 thousand sets of catalyst converters in conformity with tile展开更多
With the continuous development of science and technology,the role of rare and precious metal resources in medical treatment,economy and strategy has become increasingly prominent.This paper reviewed the application r...With the continuous development of science and technology,the role of rare and precious metal resources in medical treatment,economy and strategy has become increasingly prominent.This paper reviewed the application research of rare precious metal rubidium(Rb)in the field of medicine and health,mainly including the application significance of Rb in the field of medical and health,typical applications and problems in the field of medicine and health,and the important research significance of the research and development of medicine.展开更多
Traditional metaphor theory regards metaphor as a rhetorical device,but conceptual metaphor theory in cognitive linguis⁃tics believes that metaphor is also a universal way of thinking and a cognitive method which peop...Traditional metaphor theory regards metaphor as a rhetorical device,but conceptual metaphor theory in cognitive linguis⁃tics believes that metaphor is also a universal way of thinking and a cognitive method which people can use to know the unknown.This paper mainly summarizes conceptual metaphor theory,discusses its contribution towards cognitive linguistics and its impor⁃tant developments—the blending theory.This study will benefit the further metaphor researching and language teaching.展开更多
Combined with practical case, the paper elaborates the development and applications of mechanical drawing, mechanical design and manufacturing based on Solidworks software. By combining professional courses between ea...Combined with practical case, the paper elaborates the development and applications of mechanical drawing, mechanical design and manufacturing based on Solidworks software. By combining professional courses between each other, the knowledge continuously through different courses can enhance students＇ enthusiasm for the course and make more reasonable arrangement for the courses.展开更多
With the introduction and wide application of extensive courses in recent years,their theoretical research and practical application have received more and more attention.In this paper,the current application and prac...With the introduction and wide application of extensive courses in recent years,their theoretical research and practical application have received more and more attention.In this paper,the current application and practice of the extensive courses at the elementary school level is studied through the integration of the theoretical concepts of extensive course and taking the practicals in the extensive courses of xx primary school as an example.展开更多
Edible insects as food have been considered as a core future protein source. Not only are edible insects abundant in nutrient value, but also have numbers of functional substances, which could provide a multiple valua...Edible insects as food have been considered as a core future protein source. Not only are edible insects abundant in nutrient value, but also have numbers of functional substances, which could provide a multiple valuable benefits for humans. This review examines and summarizes the functional substances in edible insects and their special effects for people, as well as the use and prospects for these functional substances. There are many functional substances in edible insects, such as antimicrobial peptides, interferon, sex attractant hormones, cordycepin, active polysaccharides, microelement, chitin/chitosan, steroidal material, vitamin, lecithin, etc., which could provide multiple benefits for human beings. These special functional substances could help people enhance immunity, inhibit tumor, regulate intestinal function, relieve fatigue, anti oxidation, protect against colds, improve sleeping, promote the growth and development, as well as reducing blood sugar and blood pressure, among others. According to these valuable efficacies, the functional substances extracted from edible insects can be exploited mainly in three ways: edible insects are used to discover new medicines or health care products for people;and edible insects are applied in chemical, agricultural, food technology, pollutant treatment and textile sectors;as well as being consumed as animal feedstuff for livestock and other animals, which indirectly meet the different requirements for humans. Currently, edible insects have generated global interest to be developed as different forms of products and has promoted more research and development. However, pupae and larvae are still the main consumption ways in the market, which is unacceptable to most people. It is expected that the edible insect industry would be prosperous and sustainable by integrating the power of beneficial policies and regulations, huge consumer demand and proper strategies of promotion and production.展开更多
基金supported by the National Natural Science Foundation of China (21132003, 31460460, 21502032 and 21732002)the Subsidy Project for Outstanding Key Laboratory of Guizhou Province in China (20154004)+1 种基金the Provincial University Cooperation Plan of Guizhou Province in China (20147001)the Collaborative Innovation Center for Natural Products and Biological Drugs of Yunnan, China
文摘Plant virus disease is one of the major causes of biological disasters in agriculture worldwide. Given the complexity of transmission media and plant disease infection mechanisms, the prevention and control of plant viral diseases is a great challenge, and an efficient green pesticide is urgently needed. For this reason, when developing candidate drug leads to regulate plant viruses, pesticide experts have focused on characteristics such as low pesticide resistance, eco-friendliness, and novel mechanism. Researchers have also theoretically investigated the molecular targets of viruses infecting agricultural crops. Antiviral screening models have been constructed based on these molecular targets, and the mechanisms of commercial drugs and high-activity compounds have been extensively investigated. After screening, some compounds have been applied in the field and found to have good commercial prospects; these drugs may be used to create new green antiviral pesticides to control plant viruses. This paper reviews the screening, mode of action, development and application of recently used plant-based antiviral agents.
文摘With the increase in energy demand, the demand for oil and gas transmission pipes, particularly high-grade longitudinal submerged arc welded pipes （LSAWs）, have been growing in recent years. The construction of the 2nd West -East natural gas transmission pipeline project shows that the oil and gas pipeline construction has entered a new phase of development with X80 pipes being applied in large scales for the first time in China. This paper briefly introduces the 2nd West-East natural gas transmission pipeline project and its main technical requirements with the focus on the features of API standard 5L X80 grade Ф 1219 mm series of U-ing-O-ing-Expanding （ UOE ） LSAW pipes, which Baosteel developed with the integrated technology for the 2nd West-East natural gas transmission pipeline project. The analysis shows the extra-low carbon content, the high contents of manganese and niobium, the fine microstructure, the high strength,the toughness and the good weldability of X80 pipes meet the requirements of ＂the technical specification of LSAW linepipes for the 2nd West-East natural gas transmission pipeline project in China＂. By the end of June 2010, Baosteel had totally produced 322000 t of Ф 1219 mm X80 UOE steel pipes, which have been successfully used in the 2nd West-East natural gas transmission pipeline project, thus filling the gap of the production of large diameter X80 UOE LSAW pipes in China.
文摘Using mathematical plasticity theories, universal formability (UF) technology has been developed and applied in the automotive stamping engineering and production. As a formability analysis tool, this technology is the major methodology for the development of stamping expert system (solution provider) for (a) product design and feasibility analysis, (b) material automatic selection using nomograms, (c) draw die design using pre-models, and (d) UF and robustness analysis of die performance in finite element analysis (FEA) environment.
文摘The research project'Development and application of FCC additive for maximization of propylene and isobutylene'jointly undertaken by RIPP,the Baling Petrochemical Company(BPC)and the SINOPEC
基金supported by the National Natural Science Foundation of China(No.61505222)the Civil Aerospace Technology Advance Research Project(No.D040401)+2 种基金the United Foundation of Chinese Academy of Sciences(No.6141A01011602)the Knowledge Innovation Program of the Chinese Academy of Sciences(No.CXJJ-15S103)the Natural Science Foundation of Anhui Province(No.1508085QD80)
文摘In order to improve the frequency and precision of radiometric calibration, the automated vicarious calibration system（AVCS） is developed and deployed at the Dunhuang test site to perform vicarious calibration without the in situ manned measurements. The surface and atmospheric parameters are automatically collected by AVCS.An absolute radiometric calibration approach based on AVCS is proposed. Six successful calibrations of the Aqua Moderate Resolution Imaging Spectroradiometer（MODIS） are conducted. The results are in good agreement with the on-board calibration system with all the relative differences less than 4%. It enables us to monitor the change of a sensor over long time scales.
文摘Based on the principle of active sonar detection, a pipeline sonar system has been developed for detecting the water accumulated in underground gas-pipelines, and the effectiveness of this system verified through field-testing. The working process, experimental results and some considerations in the determination of sonar parameters are described in this paper.
文摘Tianiin CATARC Auto Hi-tech Company, approved by the State Planning and Developing Commission, is a manufacturing enterprise specialized in auto catalyst converters, which was listed in "The First Group Localization Projects for Environmental Protection Equipment in 1999". This company enjoys the perfect matching techniqueS for catalyst converter system, modern manufacturing shops and world-level labs. The annual production capacity is 300 thousand sets of catalyst converters in conformity with tile
基金Supported by National Talent Project of"Youth Qihuang Scholars"(2020)High-level Innovation Team Project of Guangxi Colleges and Universities(2019-52)。
文摘With the continuous development of science and technology,the role of rare and precious metal resources in medical treatment,economy and strategy has become increasingly prominent.This paper reviewed the application research of rare precious metal rubidium(Rb)in the field of medicine and health,mainly including the application significance of Rb in the field of medical and health,typical applications and problems in the field of medicine and health,and the important research significance of the research and development of medicine.
文摘Traditional metaphor theory regards metaphor as a rhetorical device,but conceptual metaphor theory in cognitive linguis⁃tics believes that metaphor is also a universal way of thinking and a cognitive method which people can use to know the unknown.This paper mainly summarizes conceptual metaphor theory,discusses its contribution towards cognitive linguistics and its impor⁃tant developments—the blending theory.This study will benefit the further metaphor researching and language teaching.
文摘Combined with practical case, the paper elaborates the development and applications of mechanical drawing, mechanical design and manufacturing based on Solidworks software. By combining professional courses between each other, the knowledge continuously through different courses can enhance students＇ enthusiasm for the course and make more reasonable arrangement for the courses.
文摘With the introduction and wide application of extensive courses in recent years,their theoretical research and practical application have received more and more attention.In this paper,the current application and practice of the extensive courses at the elementary school level is studied through the integration of the theoretical concepts of extensive course and taking the practicals in the extensive courses of xx primary school as an example.
基金supported by Jiangsu Agriculture Science and Technology Innovation Fund(JASTIF)(CX(19)2036)the National Nature Science Foundations of China(NSFC)(32100398).
文摘Edible insects as food have been considered as a core future protein source. Not only are edible insects abundant in nutrient value, but also have numbers of functional substances, which could provide a multiple valuable benefits for humans. This review examines and summarizes the functional substances in edible insects and their special effects for people, as well as the use and prospects for these functional substances. There are many functional substances in edible insects, such as antimicrobial peptides, interferon, sex attractant hormones, cordycepin, active polysaccharides, microelement, chitin/chitosan, steroidal material, vitamin, lecithin, etc., which could provide multiple benefits for human beings. These special functional substances could help people enhance immunity, inhibit tumor, regulate intestinal function, relieve fatigue, anti oxidation, protect against colds, improve sleeping, promote the growth and development, as well as reducing blood sugar and blood pressure, among others. According to these valuable efficacies, the functional substances extracted from edible insects can be exploited mainly in three ways: edible insects are used to discover new medicines or health care products for people;and edible insects are applied in chemical, agricultural, food technology, pollutant treatment and textile sectors;as well as being consumed as animal feedstuff for livestock and other animals, which indirectly meet the different requirements for humans. Currently, edible insects have generated global interest to be developed as different forms of products and has promoted more research and development. However, pupae and larvae are still the main consumption ways in the market, which is unacceptable to most people. It is expected that the edible insect industry would be prosperous and sustainable by integrating the power of beneficial policies and regulations, huge consumer demand and proper strategies of promotion and production.
