The Second Circular Baotou/China August 7～11, 2007 Organized by The Chinese Society of Rare Earths (CSRE) Baotou National Rare-Earth Hi-Tech Industrial Development Zone Honorary Chairman: Xu Kuangdi, President, the C...The Second Circular Baotou/China August 7～11, 2007 Organized by The Chinese Society of Rare Earths (CSRE) Baotou National Rare-Earth Hi-Tech Industrial Development Zone Honorary Chairman: Xu Kuangdi, President, the Chinese Academy of Engineering Chairman: Gan Yong, President, General Institute of Iron & Steel; Chairman of CSRE Vice Chairmen: Zhou Chuandian, Xu Guangxian, Li Dongying, Lin Donglu, Tu Hailing, Yang Jianlin, Li Bingrong International Scientific Advisory Board: Gi-Ya Adachi(Japan), J.C.G. Bünzli(Switzerland), Patrick Burk (USA), Przemyslaw Deren(Poland),Philippe Goldner(France), K. A. Gschneider(USA), Huang Boyun(China), Dariusz Kaczorowski (Poland), Nogami Masayuki(Japan), Ni Jiazuan(China), Wieslaw Strek(Poland),Su Qiang(China), Alessandro Trovarelli(Italy), Wang Zhenxi(China), Yang Yingchang (China), Zhang Guocheng (China)展开更多
Organized by The Chinese Society of Rare Earths (CSRE) Co-Organized by Peking University (PKU),Roskill Information Services Ltd.,Metallurgical Council of CCPIT,Metal Pages,Baotou
Beijing / China August 2-6, 2010 Organized by The Chinese Society of Rare Earths (CSRE) Co-Organized by Peking University (PKU), Roskill Information Services Ltd., Metallurgical Council
The 2nd International Conference on Rare Earth Development and Applications(ICRE’91),which wassponsored by the Chinese Society of Rare Earths,was held at Beijing International Convention Centre fromMay 27 through May...The 2nd International Conference on Rare Earth Development and Applications(ICRE’91),which wassponsored by the Chinese Society of Rare Earths,was held at Beijing International Convention Centre fromMay 27 through May 31,1991.290 scientists attended this conference,among them there were 63 foreign sci-entists.Prof.Yu Zongsen,vice-chairman of the Chinese Society of Rare Earths,presided over the openingceremony.Mr.Xu Daquan,deputy director of the Rare Earth Leading Group of the State Council,vice-minister展开更多
The Eleventh Five-Year Plan places emphasis on enhancing the nation's innovation capabilities. Innovation forms a key part of the strategy to change China's central mode of growth to one that is based on s... The Eleventh Five-Year Plan places emphasis on enhancing the nation's innovation capabilities. Innovation forms a key part of the strategy to change China's central mode of growth to one that is based on science and technology.……展开更多
INTRODUCTION Launch vehicles are a precondition and main carrier for space activities for human beings.Their development have directly promoted the technology of satellite applications,manned spaceflight,deep space ex...INTRODUCTION Launch vehicles are a precondition and main carrier for space activities for human beings.Their development have directly promoted the technology of satellite applications,manned spaceflight,deep space exploration,and promoted the development of communication,navigation,environmental monitoring,resource exploitation,scientific research and so on.展开更多
This study focuses on the teaching reform of the communication application development course based on the core requirements of engineering education accreditation.To address key challenges such as the disconnection b...This study focuses on the teaching reform of the communication application development course based on the core requirements of engineering education accreditation.To address key challenges such as the disconnection between software and hardware teaching and insufficient practical skills among students,a project-driven“learning-practiceapplication”teaching model is proposed.By optimizing course content,innovating teaching methods,and introducing university-industry collaboration mechanisms,the reform aligns the curriculum more closely with engineering education standards and industry demands.The approach significantly enhances students’comprehensive skills,practical abilities,and employability.This study provides theoretical foundations and practical strategies for the teaching reform of courses in communication engineering.展开更多
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
Software engineering＇s lifecycle models havc proven to be very important for traditional software development. However, can these models be applied to the development of Web-based applications as well？ In recent yea...Software engineering＇s lifecycle models havc proven to be very important for traditional software development. However, can these models be applied to the development of Web-based applications as well？ In recent years, Web-based applications have become more and more complicated and a lot of efforts have been placed on introducing new technologies such as J2EE, PhP, and .NET, etc., which have been universally accepted as the development technologies for Web-based applications. However, there is no universally accepted process model for the development of Web-based applications. Moreover, shaping the process model for small medium-sized enterprises （SMEs）, which have limited resources, has been relatively neglected. Based on our previous work, this paper presents an expanded lifecycle process model for the development of Web-based applications in SMEs. It consists of three sets of processes, i.e., requirement processes, development processes, and evolution processes. Particularly, the post-delivery evolution processes are important to SMEs to develop and maintain quality web applications with limited resources and time.展开更多
In recent years,the IT industry in China has developed rapidly and made remarkable achievements.However,there is still a big gap between China and foreign countries in the core fields of information technology,such as...In recent years,the IT industry in China has developed rapidly and made remarkable achievements.However,there is still a big gap between China and foreign countries in the core fields of information technology,such as system hardware and software platform.Currently,foreign countries have gradually raised the restrictions of information technology in China,and even added many domestic enterprises to the restricted list,which has rung the alarm to the information security of the country.Therefore,in order to break through the foreign technology blockade and find a unique way in independent software and hardware platform,it is urgent to carry out the curriculum construction and talent training mechanism on core software and hardware platform.HarmonyOS is a“future-oriented”distributed operating system developed by Huawei.It proposes a distributed concept based on the same system capability and adapts to a variety of terminal forms,and supports a variety of terminal devices such as mobile phones,watches and smart screens.Our course on HarmonyOS aims to increase the theoretical knowledge of the core independent software and hardware platform.In the course,we exploit our teaching reform experience in the course of“Mobile Application Development”,and investigate the teaching mechanism of HarmonyOS to contribute to the rapid development of information technology and ecological construction in China.展开更多
The Chang-63 reservoir in the Huaqing area has widely developed tight sandstone ＂thick sand layers, but not reservoirs characterized by rich in oil＂, and it is thus necessary to further study its oil and gas enrichm...The Chang-63 reservoir in the Huaqing area has widely developed tight sandstone ＂thick sand layers, but not reservoirs characterized by rich in oil＂, and it is thus necessary to further study its oil and gas enrichment law. This study builds porosity and fracture development and evolution models in different deposition environments, through core observation, casting thin section, SEM, porosity and permeability analysis, burial history analysis, and ＂four-property-relationships＂ analysis.展开更多
Helicobacter pylori (H. pylori) neutrophil-activating protein (HP-NAP) was originally identified as a virulence factor of H. pylori for its ability to activate neutrophils to generate respiratory burst by releasing re...Helicobacter pylori (H. pylori) neutrophil-activating protein (HP-NAP) was originally identified as a virulence factor of H. pylori for its ability to activate neutrophils to generate respiratory burst by releasing reactive oxygen species. Later on, HP-NAP was also found to be involved in the protection of H. pylori from DNA damage, supporting the survival of H. pylori under oxidative stress. This protein is highly conserved and expressed by virtually all clinical isolates of H. pylori. The majority of patients infected with H. pylori produced antibodies specific for HP-NAP, suggesting its important role in immunity. In addition to acting as a pathogenic factor by activating the innate immunity through a wide range of human leukocytes, including neutrophils, monocytes, and mast cells, HP-NAP also mediates adaptive immunity through the induction of T helper cell type I responses. The pro-inflammatory and immunomodulatory properties of HP-NAP not only make it play an important role in disease pathogenesis but also make it a potential candidate for clinical use. Even though there is no convincing evidence to link HP-NAP to a disease outcome, recent findings supporting the pathogenic role of HP-NAP will be reviewed. In addition, the potential clinical applications of HP-NAP in vaccine development, clinical diagnosis, and drug development will be discussed.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
On December 9, 2014 the scientific research project ＂Developmentand commercial application of technology forultra-deep HDS of diesel （RTS）＂ jointly performed bythe SINOPEC Research Institute of Petroleum Processin...On December 9, 2014 the scientific research project ＂Developmentand commercial application of technology forultra-deep HDS of diesel （RTS）＂ jointly performed bythe SINOPEC Research Institute of Petroleum Processing（RIPP）, the Yanshan Petrochemical Branch Company（YPBC）, the Maoming Petrochemical Branch Companyand the Guangzhou Petrochemical Branch Company haspassed in Beijing the technical appraisal organized by theScience and Technology Division of the Sinopec Corp.展开更多
文摘The Second Circular Baotou/China August 7～11, 2007 Organized by The Chinese Society of Rare Earths (CSRE) Baotou National Rare-Earth Hi-Tech Industrial Development Zone Honorary Chairman: Xu Kuangdi, President, the Chinese Academy of Engineering Chairman: Gan Yong, President, General Institute of Iron & Steel; Chairman of CSRE Vice Chairmen: Zhou Chuandian, Xu Guangxian, Li Dongying, Lin Donglu, Tu Hailing, Yang Jianlin, Li Bingrong International Scientific Advisory Board: Gi-Ya Adachi(Japan), J.C.G. Bünzli(Switzerland), Patrick Burk (USA), Przemyslaw Deren(Poland),Philippe Goldner(France), K. A. Gschneider(USA), Huang Boyun(China), Dariusz Kaczorowski (Poland), Nogami Masayuki(Japan), Ni Jiazuan(China), Wieslaw Strek(Poland),Su Qiang(China), Alessandro Trovarelli(Italy), Wang Zhenxi(China), Yang Yingchang (China), Zhang Guocheng (China)
文摘Organized by The Chinese Society of Rare Earths (CSRE) Co-Organized by Peking University (PKU),Roskill Information Services Ltd.,Metallurgical Council of CCPIT,Metal Pages,Baotou
文摘Beijing / China August 2-6, 2010 Organized by The Chinese Society of Rare Earths (CSRE) Co-Organized by Peking University (PKU), Roskill Information Services Ltd., Metallurgical Council
文摘The 2nd International Conference on Rare Earth Development and Applications(ICRE’91),which wassponsored by the Chinese Society of Rare Earths,was held at Beijing International Convention Centre fromMay 27 through May 31,1991.290 scientists attended this conference,among them there were 63 foreign sci-entists.Prof.Yu Zongsen,vice-chairman of the Chinese Society of Rare Earths,presided over the openingceremony.Mr.Xu Daquan,deputy director of the Rare Earth Leading Group of the State Council,vice-minister
文摘 The Eleventh Five-Year Plan places emphasis on enhancing the nation's innovation capabilities. Innovation forms a key part of the strategy to change China's central mode of growth to one that is based on science and technology.……
文摘INTRODUCTION Launch vehicles are a precondition and main carrier for space activities for human beings.Their development have directly promoted the technology of satellite applications,manned spaceflight,deep space exploration,and promoted the development of communication,navigation,environmental monitoring,resource exploitation,scientific research and so on.
基金Quality Engineering Project of Higher Education Institutions in Anhui Province(2023aqnujyxm26,2023sx060,2023zyxwjxalk124)Natural Science Key Research Project for Higher Education Institutions of Anhui Province(2024AH051117,2024AH051126)+1 种基金Excellent Young Backbone Teachers’Domestic and Foreign Visiting and Training Program in Universities(gxgnfx20220262022)Research and Industrialization Project of High Precision Positioning System for Intelligent Connected Vehicles。
文摘This study focuses on the teaching reform of the communication application development course based on the core requirements of engineering education accreditation.To address key challenges such as the disconnection between software and hardware teaching and insufficient practical skills among students,a project-driven“learning-practiceapplication”teaching model is proposed.By optimizing course content,innovating teaching methods,and introducing university-industry collaboration mechanisms,the reform aligns the curriculum more closely with engineering education standards and industry demands.The approach significantly enhances students’comprehensive skills,practical abilities,and employability.This study provides theoretical foundations and practical strategies for the teaching reform of courses in communication engineering.
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Software engineering＇s lifecycle models havc proven to be very important for traditional software development. However, can these models be applied to the development of Web-based applications as well？ In recent years, Web-based applications have become more and more complicated and a lot of efforts have been placed on introducing new technologies such as J2EE, PhP, and .NET, etc., which have been universally accepted as the development technologies for Web-based applications. However, there is no universally accepted process model for the development of Web-based applications. Moreover, shaping the process model for small medium-sized enterprises （SMEs）, which have limited resources, has been relatively neglected. Based on our previous work, this paper presents an expanded lifecycle process model for the development of Web-based applications in SMEs. It consists of three sets of processes, i.e., requirement processes, development processes, and evolution processes. Particularly, the post-delivery evolution processes are important to SMEs to develop and maintain quality web applications with limited resources and time.
文摘In recent years,the IT industry in China has developed rapidly and made remarkable achievements.However,there is still a big gap between China and foreign countries in the core fields of information technology,such as system hardware and software platform.Currently,foreign countries have gradually raised the restrictions of information technology in China,and even added many domestic enterprises to the restricted list,which has rung the alarm to the information security of the country.Therefore,in order to break through the foreign technology blockade and find a unique way in independent software and hardware platform,it is urgent to carry out the curriculum construction and talent training mechanism on core software and hardware platform.HarmonyOS is a“future-oriented”distributed operating system developed by Huawei.It proposes a distributed concept based on the same system capability and adapts to a variety of terminal forms,and supports a variety of terminal devices such as mobile phones,watches and smart screens.Our course on HarmonyOS aims to increase the theoretical knowledge of the core independent software and hardware platform.In the course,we exploit our teaching reform experience in the course of“Mobile Application Development”,and investigate the teaching mechanism of HarmonyOS to contribute to the rapid development of information technology and ecological construction in China.
文摘The Chang-63 reservoir in the Huaqing area has widely developed tight sandstone ＂thick sand layers, but not reservoirs characterized by rich in oil＂, and it is thus necessary to further study its oil and gas enrichment law. This study builds porosity and fracture development and evolution models in different deposition environments, through core observation, casting thin section, SEM, porosity and permeability analysis, burial history analysis, and ＂four-property-relationships＂ analysis.
基金Supported by National Science Council of Taiwan,No.NSC101-2311-B-007-007
文摘Helicobacter pylori (H. pylori) neutrophil-activating protein (HP-NAP) was originally identified as a virulence factor of H. pylori for its ability to activate neutrophils to generate respiratory burst by releasing reactive oxygen species. Later on, HP-NAP was also found to be involved in the protection of H. pylori from DNA damage, supporting the survival of H. pylori under oxidative stress. This protein is highly conserved and expressed by virtually all clinical isolates of H. pylori. The majority of patients infected with H. pylori produced antibodies specific for HP-NAP, suggesting its important role in immunity. In addition to acting as a pathogenic factor by activating the innate immunity through a wide range of human leukocytes, including neutrophils, monocytes, and mast cells, HP-NAP also mediates adaptive immunity through the induction of T helper cell type I responses. The pro-inflammatory and immunomodulatory properties of HP-NAP not only make it play an important role in disease pathogenesis but also make it a potential candidate for clinical use. Even though there is no convincing evidence to link HP-NAP to a disease outcome, recent findings supporting the pathogenic role of HP-NAP will be reviewed. In addition, the potential clinical applications of HP-NAP in vaccine development, clinical diagnosis, and drug development will be discussed.
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
文摘On December 9, 2014 the scientific research project ＂Developmentand commercial application of technology forultra-deep HDS of diesel （RTS）＂ jointly performed bythe SINOPEC Research Institute of Petroleum Processing（RIPP）, the Yanshan Petrochemical Branch Company（YPBC）, the Maoming Petrochemical Branch Companyand the Guangzhou Petrochemical Branch Company haspassed in Beijing the technical appraisal organized by theScience and Technology Division of the Sinopec Corp.
