Objective To systematically analyze the current development status of biopharmaceutical industrial park in China,sort out the problems and put forward some countermeasures and suggestions.Methods Relevant literature w...Objective To systematically analyze the current development status of biopharmaceutical industrial park in China,sort out the problems and put forward some countermeasures and suggestions.Methods Relevant literature was searched and reviewed to find out the problems faced by the development of biopharmaceutical industrial parks in China.Results and Conclusion Biopharmaceutical industrial parks are developing rapidly due to their unique industrial clustering advantages,but there are problems such as lack of overall planning at the top level,insufficient government support,imperfect talent support services and weak innovation capacity of the parks.It is recommended to promote the rapid development of biopharmaceutical industrial parks and biopharmaceutical enterprises by strengthening top-level design,increasing government support,focusing on talent introduction,and enhancing the innovative strength of the parks.展开更多
The development of microbial herbicide for weed control has been serious- ly regarded all over the world and has made rapid progress in recent years. This paper presents a comprehensive review on domestic and abroad r...The development of microbial herbicide for weed control has been serious- ly regarded all over the world and has made rapid progress in recent years. This paper presents a comprehensive review on domestic and abroad research progress of microbial herbicide and mainly introduces the microbial herbicide products and mi- crobial sources with commercialization potential, and then proposes an outlook for their development tendency and application prospect.展开更多
Climate change is an alarming global challenge, particularly affecting the least developed countries (LDCs) including Liberia. These countries, located in regions prone to unpredictable temperature and precipitation c...Climate change is an alarming global challenge, particularly affecting the least developed countries (LDCs) including Liberia. These countries, located in regions prone to unpredictable temperature and precipitation changes, are facing significant challenges, particularly in climate-sensitive sectors such as mining and agriculture. LDCs need more resilience to adverse climate shocks but have limited capacity for adaptation compared to other developed and developing nations. This paper examines Liberia’s susceptibility to climate change as a least developed country, focusing on its exposure, sensitivity, and adaptive capacity. It provides an overview of LDCs and outlines the global distribution of carbon dioxide emissions. The paper also evaluates specific challenges that amplify Liberia’s vulnerability and constrain sustainable adaptation, providing insight into climate change’s existing and potential effects. The paper emphasizes the urgency of addressing climate impacts on Liberia and calls for concerted local and international efforts for effective and sustainable mitigation efforts. It provides recommendations for policy decisions and calls for further research on climate change mitigation and adaptation.展开更多
In recent years,with the continuous development of biotechnology and medical science and technology,therapeutic antibodies,as new biologics,have shown great potential and have become a research hotspot in the fields o...In recent years,with the continuous development of biotechnology and medical science and technology,therapeutic antibodies,as new biologics,have shown great potential and have become a research hotspot in the fields of oncology,autoimmune diseases,cardiovascular and neuroscience.Therapeutic antibodies refer to drugs or therapeutic methods for the treatment of diseases with specificity,high affinity and high efficiency antibody molecules prepared by biotechnological means.In this paper,we will systematically review the types of therapeutic antibodies,research progress,problems in research and development,mechanisms of action,and challenges faced in clinical applications.展开更多
Objective To identify the critical risks in the process of innovative drug research and development,and to provide reference for improving the efficiency of innovative drug development and risk control in China.Method...Objective To identify the critical risks in the process of innovative drug research and development,and to provide reference for improving the efficiency of innovative drug development and risk control in China.Methods Expert investigation and analytic hierarchy process were used to determine the weights of different risks.Results and Conclusion The research and analysis results showed that the risks at different stages of development had different effects on the success rate of drug development,among which the risk at the drug discovery stage influenced the most.In the drug discovery stage,inappropriate target selection had the greatest impact on the success rate of drug development.The lack of appropriate cell tissue or animal models had the greatest impact on the success rate of drug development from the discovery of a compound to the application for clinical trials.The difference in changes between nonclinical and clinical studies had the greatest impact on the success rate of drug development from early clinical studies to pivotal clinical studies.Incorrect dose selection had the greatest impact on the success rate of drug development from pivotal clinical studies to marketing authorization applications.The biggest impact from the marketing authorization application to the approval stage was inadequate communication with regulators.After investigating the weight of risk factors in the process of innovative drug development based on scientific methods,a new perspective for the risk control of new drug development and improving the research and development efficiency is provided.展开更多
The Single European Sky Air Traffic management(ATM)Research(SESAR)project is the technological pillar of the European Commission’s Single European Sky Initiative to modernize ATM.Here,we describe the process of estab...The Single European Sky Air Traffic management(ATM)Research(SESAR)project is the technological pillar of the European Commission’s Single European Sky Initiative to modernize ATM.Here,we describe the process of establishing SESAR and the main parts of the project:the research and development(R&D)part,which is led by the SESAR Joint Undertaking;the deployment part,which is managed by the SESAR Deployment Manager;and the European ATM Master Plan,which collects and lays out both the R&D and deployment needs.The latest European ATM Master Plan was adopted just prior to the current pandemic.The huge loss in air traffic due to the pandemic,and the speed of the recovery of the aviation industry will require reprioritization,but the main elements that have been established-particularly those in support of the environment-remain valid.展开更多
Some of the progress made in our laboratories in collaboration with industry in research and development work on high performance oxide-nonoxide composites for metallurgical applications has been reviewed. (1) SiAlO...Some of the progress made in our laboratories in collaboration with industry in research and development work on high performance oxide-nonoxide composites for metallurgical applications has been reviewed. (1) SiAlON bonded corundum composites for blast furnace usage have been produced by reduction-nitridation sinte-ring at high temperature, using bauxite instead of alu-mina in the matrix. (2) Low carbon Al2O3 - SiAlON slide plate materials successfully used in high quality steel continuous casting have been developed in which most or all of the graphite in Al2O3 - C brick is replaced by bauxite-based β-SiAlON. (3) A1/Si metal bonded A12 03 - C material characterized by low carbon content, low firing temperature and in-situ formation of carbides and nitrides at high temperature during service are found to possess very high hot strength and very good thermal shock resistance and have also been successfully used as slide plates in ladles and tundishes for high quality steel casting.展开更多
Baoshan Iron & Steel Co.,Ltd., (referred to as Baosteel) in China first succeeded in developing the U-ing-O- ing-Expanding (UOE) longitudinal submerged arc welded pipes (SAWLs) offshore linepipe of a maximum th...Baoshan Iron & Steel Co.,Ltd., (referred to as Baosteel) in China first succeeded in developing the U-ing-O- ing-Expanding (UOE) longitudinal submerged arc welded pipes (SAWLs) offshore linepipe of a maximum thickness/ outside diameter (T/D) 0.042 in 2011. Described in this paper is the research and development of the X70 UOE SAWL pipes by the company. The result shows that the said X70 linepipe has been in compliance with relevant requirements as specified in Specifications DNV-OS-F101 ,and has been successfully used in the South China Sea deepwater gas pipeline project.展开更多
An analysis of the impact of simulation modelling in three diverse crop-livestock improvement projects in Agricultural Research for Development(AR4D) reveals benefits across a range of aspects including identificati...An analysis of the impact of simulation modelling in three diverse crop-livestock improvement projects in Agricultural Research for Development(AR4D) reveals benefits across a range of aspects including identification of objectives, design and implementation of experimental programs, effectiveness of participatory research with smallholder farmers, implementation of system change and scaling-out of results.In planning change, farmers must consider complex interactions within both biophysical and socioeconomic aspects of their crop and animal production activities.For this, whole-farm models that include household models of food, workload and financial requirements have the most utility and impact.The analysis also proposes improvements in design and implementation of AR4 D projects to improve the utility of simulation modelling for securing positive agronomic and livestock outcomes and lasting legacies.展开更多
Due to the restrictions on the conditions for afforestation and sand control,the development research,and application of sand barriers have accelerated in recent years,but some problems that cannot be ignored have eme...Due to the restrictions on the conditions for afforestation and sand control,the development research,and application of sand barriers have accelerated in recent years,but some problems that cannot be ignored have emerged in practice. In this paper,the functions of wind prevention,sand blocking and fixation,improving soil physical and chemical properties and increasing plant diversity of sand barriers,accretion coefficient and capacity between sand barriers,and mobile sand barriers were analyzed firstly,and then several issues that should be noted in the development and application of sand barriers were proposed. The results show that sand barriers can fix sand on the spot and maintain the stability of sand surface. As an auxiliary measure before afforestation on a mobile sand surface,they are practical and feasible. The biggest drawback of sand barriers is that they are easy to be saturated. Although they can increase plant diversity and surface roughness,they lose the function of blocking sand flow after being saturated,and their function of in-situ sand fixation also rapidly decreases with the degradation of sand barriers. Mobile sand barriers overcome the disadvantage of sand barriers being easy to be saturated to some extent,but the cost greatly increases. In terms of desertification prevention and control by plants,plants are used as sand barriers to study their functions of sand blocking and sand fixation in many researches and practices,but the more important ecological functions of adjusting temperature on sand surface and achieving surface thermodynamic equilibrium of plants are ignored.展开更多
Anticancer drugs research and development have been the largest market area in the pharmaceutical industry in terms of the number of project, clinical trials and spending. In the last 10 - 30 years, targeting therapy ...Anticancer drugs research and development have been the largest market area in the pharmaceutical industry in terms of the number of project, clinical trials and spending. In the last 10 - 30 years, targeting therapy for cancers has been developed and achieved enormous clinical effectiveness by transforming some previously deadly malignancies into chronically manageable conditions, but cure problem still remains. This mini review outlined the current status of anticancer drugs development and hinted the opinions of how to further increase the accuracy and efficacy of discovery for cancer treatment.展开更多
In 1981,Nanyang Technological Institute was established in Singapore to train engineers and accountants to keep up with the fast-growing economy of the country.In 1991,the institute was upgraded to Nanyang Technologic...In 1981,Nanyang Technological Institute was established in Singapore to train engineers and accountants to keep up with the fast-growing economy of the country.In 1991,the institute was upgraded to Nanyang Technological University(NTU).NTU holds the rank for world's top young university for six consecutive years according to the Quacquarelli Symonds(QS)world university ranking.Virtual Reality(VR)research began in NTU in the late 1990s.NTU's colleges,schools,institutes,and centers have contributed toward the excellence of VR research.This article briefly describes the VR research directions and activities in NTU.展开更多
The full name of CISRI is Central Iron&Steel Research Institute under the Ministry of Metallurgical Industry in China.It is the largest institute of metallurgical process research in China(the word"large"...The full name of CISRI is Central Iron&Steel Research Institute under the Ministry of Metallurgical Industry in China.It is the largest institute of metallurgical process research in China(the word"large"here refers to various fields,large personnel and many research projects).It includes ironmaking,steel-making,cold and hot processing of steel,metallic product,ferroalloy,refractory,automatic metallurgy control,design展开更多
Broadband Wireless Access (BWA) has become one of the major evolution trends in the fields of broadband access and mobile communications. However,some difficulties emerged during the application and industrialization ...Broadband Wireless Access (BWA) has become one of the major evolution trends in the fields of broadband access and mobile communications. However,some difficulties emerged during the application and industrialization of the BWA system,which calls for typical service models,key technology innovations and backbone support from broadband Internet. This article introduces a Broadband Wireless Multimedia (BWM) access system. It aims to build a new-type "triple play" BWA network by integrating terrestrial digital TV system and the BWA system,and by taking broadband Internet as its core network platform. A primary research shows that the new BWA system is an effective solution to the existing difficulties of BWA system. Moreover,it is quite competitive in service provision,service coverage,frequency planning,terminal power consumption and cost for network construction.展开更多
COVID-19 has disrupted people’s occupational daily activities with detrimental impact on their daily living performances and quality of life. Occupational therapy contributes toward restoring health by remediating li...COVID-19 has disrupted people’s occupational daily activities with detrimental impact on their daily living performances and quality of life. Occupational therapy contributes toward restoring health by remediating limitation in participation in meaningful occupation with lifestyle redesign interventions. However, the research gap on the area of “participation-limitation” for the field of Occupational Therapy in cancer survivorship during the COVID-19 is largely untapped and unknown. This commentary-review paper discussed the PEO-OT (person-environment-occupation) grid as a conceptual toolkit for stimulating research in the domain of occupational participation—an essential aspect in the field of occupational therapy, for cancer survivors. It applies the expertise finding from a large Delphi study on research priority in the fields and integrating these into evidenced methodology, to provide a structure to guide the novice researchers towards rapid reviews, by selecting evidence-based methods to ensure contextually-relevant enquiry to identify the “occupational-participation issues”—<em>i.e.</em>, an emerging social determinant of health, affecting the daily self-management of cancer survivors with or without comorbidities.展开更多
The paper analyzes the status quo of E-commerce application in Wenzhou's small and medium enterprises. This survey selects the 100 prominent small and medium enterprises covering chemical engineering, shoes, apparel,...The paper analyzes the status quo of E-commerce application in Wenzhou's small and medium enterprises. This survey selects the 100 prominent small and medium enterprises covering chemical engineering, shoes, apparel, machinery, furniture, glasses, lighters, pen and pencil, electric and electronics as the investigating targets and issues the questionnaires to them. The result indicates that, the status quo of E-commerce application in Wenzhou's small and medium enterprises are worrisome, which is obviously way behind other cities. Based on that, the paper analyzes the reasons in combination with visiting them, and also proposes the corresponding strategies and predicts its prospect in the end.展开更多
Studies on the mechanical behaviour of squeeze-cast SiCw / Al composites have been revjewed. The results show that SiCw / Al composites exhibit improved mechan ical properties and cyclic hard ening. The reasons leadin...Studies on the mechanical behaviour of squeeze-cast SiCw / Al composites have been revjewed. The results show that SiCw / Al composites exhibit improved mechan ical properties and cyclic hard ening. The reasons leading to the above results are discussed. Localized deformation near SiC whiskers plays an important role in the initiation of microcracks in the composites, and the fracture of the composites is caused by the abrupt linking of microcracks展开更多
In this paper, the author presented an overview of scientific research in universities of Vietnam in present and analyzed and assessed its effects on the quality of education in universities. The information to write ...In this paper, the author presented an overview of scientific research in universities of Vietnam in present and analyzed and assessed its effects on the quality of education in universities. The information to write this article was obtained in the references and from the management practice for the universities and the research institute.展开更多
文摘Objective To systematically analyze the current development status of biopharmaceutical industrial park in China,sort out the problems and put forward some countermeasures and suggestions.Methods Relevant literature was searched and reviewed to find out the problems faced by the development of biopharmaceutical industrial parks in China.Results and Conclusion Biopharmaceutical industrial parks are developing rapidly due to their unique industrial clustering advantages,but there are problems such as lack of overall planning at the top level,insufficient government support,imperfect talent support services and weak innovation capacity of the parks.It is recommended to promote the rapid development of biopharmaceutical industrial parks and biopharmaceutical enterprises by strengthening top-level design,increasing government support,focusing on talent introduction,and enhancing the innovative strength of the parks.
基金Supported by Natural Science Foundation of China(No.31101483)Special Fund for Agro-scientific Research in the Public Interest(No.201303031)Project of Youth Fund of Hunan Agricultural University(No.12QN09)~~
文摘The development of microbial herbicide for weed control has been serious- ly regarded all over the world and has made rapid progress in recent years. This paper presents a comprehensive review on domestic and abroad research progress of microbial herbicide and mainly introduces the microbial herbicide products and mi- crobial sources with commercialization potential, and then proposes an outlook for their development tendency and application prospect.
文摘Climate change is an alarming global challenge, particularly affecting the least developed countries (LDCs) including Liberia. These countries, located in regions prone to unpredictable temperature and precipitation changes, are facing significant challenges, particularly in climate-sensitive sectors such as mining and agriculture. LDCs need more resilience to adverse climate shocks but have limited capacity for adaptation compared to other developed and developing nations. This paper examines Liberia’s susceptibility to climate change as a least developed country, focusing on its exposure, sensitivity, and adaptive capacity. It provides an overview of LDCs and outlines the global distribution of carbon dioxide emissions. The paper also evaluates specific challenges that amplify Liberia’s vulnerability and constrain sustainable adaptation, providing insight into climate change’s existing and potential effects. The paper emphasizes the urgency of addressing climate impacts on Liberia and calls for concerted local and international efforts for effective and sustainable mitigation efforts. It provides recommendations for policy decisions and calls for further research on climate change mitigation and adaptation.
基金supported by the Shenyang City-School Joint Funding Project(No.2400022093)Liaoning Province Education Department Scientific Research Funding Project(No.LJKZ0777).
文摘In recent years,with the continuous development of biotechnology and medical science and technology,therapeutic antibodies,as new biologics,have shown great potential and have become a research hotspot in the fields of oncology,autoimmune diseases,cardiovascular and neuroscience.Therapeutic antibodies refer to drugs or therapeutic methods for the treatment of diseases with specificity,high affinity and high efficiency antibody molecules prepared by biotechnological means.In this paper,we will systematically review the types of therapeutic antibodies,research progress,problems in research and development,mechanisms of action,and challenges faced in clinical applications.
文摘Objective To identify the critical risks in the process of innovative drug research and development,and to provide reference for improving the efficiency of innovative drug development and risk control in China.Methods Expert investigation and analytic hierarchy process were used to determine the weights of different risks.Results and Conclusion The research and analysis results showed that the risks at different stages of development had different effects on the success rate of drug development,among which the risk at the drug discovery stage influenced the most.In the drug discovery stage,inappropriate target selection had the greatest impact on the success rate of drug development.The lack of appropriate cell tissue or animal models had the greatest impact on the success rate of drug development from the discovery of a compound to the application for clinical trials.The difference in changes between nonclinical and clinical studies had the greatest impact on the success rate of drug development from early clinical studies to pivotal clinical studies.Incorrect dose selection had the greatest impact on the success rate of drug development from pivotal clinical studies to marketing authorization applications.The biggest impact from the marketing authorization application to the approval stage was inadequate communication with regulators.After investigating the weight of risk factors in the process of innovative drug development based on scientific methods,a new perspective for the risk control of new drug development and improving the research and development efficiency is provided.
文摘The Single European Sky Air Traffic management(ATM)Research(SESAR)project is the technological pillar of the European Commission’s Single European Sky Initiative to modernize ATM.Here,we describe the process of establishing SESAR and the main parts of the project:the research and development(R&D)part,which is led by the SESAR Joint Undertaking;the deployment part,which is managed by the SESAR Deployment Manager;and the European ATM Master Plan,which collects and lays out both the R&D and deployment needs.The latest European ATM Master Plan was adopted just prior to the current pandemic.The huge loss in air traffic due to the pandemic,and the speed of the recovery of the aviation industry will require reprioritization,but the main elements that have been established-particularly those in support of the environment-remain valid.
文摘Some of the progress made in our laboratories in collaboration with industry in research and development work on high performance oxide-nonoxide composites for metallurgical applications has been reviewed. (1) SiAlON bonded corundum composites for blast furnace usage have been produced by reduction-nitridation sinte-ring at high temperature, using bauxite instead of alu-mina in the matrix. (2) Low carbon Al2O3 - SiAlON slide plate materials successfully used in high quality steel continuous casting have been developed in which most or all of the graphite in Al2O3 - C brick is replaced by bauxite-based β-SiAlON. (3) A1/Si metal bonded A12 03 - C material characterized by low carbon content, low firing temperature and in-situ formation of carbides and nitrides at high temperature during service are found to possess very high hot strength and very good thermal shock resistance and have also been successfully used as slide plates in ladles and tundishes for high quality steel casting.
文摘Baoshan Iron & Steel Co.,Ltd., (referred to as Baosteel) in China first succeeded in developing the U-ing-O- ing-Expanding (UOE) longitudinal submerged arc welded pipes (SAWLs) offshore linepipe of a maximum thickness/ outside diameter (T/D) 0.042 in 2011. Described in this paper is the research and development of the X70 UOE SAWL pipes by the company. The result shows that the said X70 linepipe has been in compliance with relevant requirements as specified in Specifications DNV-OS-F101 ,and has been successfully used in the South China Sea deepwater gas pipeline project.
基金the various projects and others who participated in the review and to ACIAR and CSIRO for logistical and financial supportPC was a research manager for these projects in CSIRO
文摘An analysis of the impact of simulation modelling in three diverse crop-livestock improvement projects in Agricultural Research for Development(AR4D) reveals benefits across a range of aspects including identification of objectives, design and implementation of experimental programs, effectiveness of participatory research with smallholder farmers, implementation of system change and scaling-out of results.In planning change, farmers must consider complex interactions within both biophysical and socioeconomic aspects of their crop and animal production activities.For this, whole-farm models that include household models of food, workload and financial requirements have the most utility and impact.The analysis also proposes improvements in design and implementation of AR4 D projects to improve the utility of simulation modelling for securing positive agronomic and livestock outcomes and lasting legacies.
基金Supported by National Natural Science Foundation of China(41671528)
文摘Due to the restrictions on the conditions for afforestation and sand control,the development research,and application of sand barriers have accelerated in recent years,but some problems that cannot be ignored have emerged in practice. In this paper,the functions of wind prevention,sand blocking and fixation,improving soil physical and chemical properties and increasing plant diversity of sand barriers,accretion coefficient and capacity between sand barriers,and mobile sand barriers were analyzed firstly,and then several issues that should be noted in the development and application of sand barriers were proposed. The results show that sand barriers can fix sand on the spot and maintain the stability of sand surface. As an auxiliary measure before afforestation on a mobile sand surface,they are practical and feasible. The biggest drawback of sand barriers is that they are easy to be saturated. Although they can increase plant diversity and surface roughness,they lose the function of blocking sand flow after being saturated,and their function of in-situ sand fixation also rapidly decreases with the degradation of sand barriers. Mobile sand barriers overcome the disadvantage of sand barriers being easy to be saturated to some extent,but the cost greatly increases. In terms of desertification prevention and control by plants,plants are used as sand barriers to study their functions of sand blocking and sand fixation in many researches and practices,but the more important ecological functions of adjusting temperature on sand surface and achieving surface thermodynamic equilibrium of plants are ignored.
文摘Anticancer drugs research and development have been the largest market area in the pharmaceutical industry in terms of the number of project, clinical trials and spending. In the last 10 - 30 years, targeting therapy for cancers has been developed and achieved enormous clinical effectiveness by transforming some previously deadly malignancies into chronically manageable conditions, but cure problem still remains. This mini review outlined the current status of anticancer drugs development and hinted the opinions of how to further increase the accuracy and efficacy of discovery for cancer treatment.
文摘In 1981,Nanyang Technological Institute was established in Singapore to train engineers and accountants to keep up with the fast-growing economy of the country.In 1991,the institute was upgraded to Nanyang Technological University(NTU).NTU holds the rank for world's top young university for six consecutive years according to the Quacquarelli Symonds(QS)world university ranking.Virtual Reality(VR)research began in NTU in the late 1990s.NTU's colleges,schools,institutes,and centers have contributed toward the excellence of VR research.This article briefly describes the VR research directions and activities in NTU.
文摘The full name of CISRI is Central Iron&Steel Research Institute under the Ministry of Metallurgical Industry in China.It is the largest institute of metallurgical process research in China(the word"large"here refers to various fields,large personnel and many research projects).It includes ironmaking,steel-making,cold and hot processing of steel,metallic product,ferroalloy,refractory,automatic metallurgy control,design
文摘Broadband Wireless Access (BWA) has become one of the major evolution trends in the fields of broadband access and mobile communications. However,some difficulties emerged during the application and industrialization of the BWA system,which calls for typical service models,key technology innovations and backbone support from broadband Internet. This article introduces a Broadband Wireless Multimedia (BWM) access system. It aims to build a new-type "triple play" BWA network by integrating terrestrial digital TV system and the BWA system,and by taking broadband Internet as its core network platform. A primary research shows that the new BWA system is an effective solution to the existing difficulties of BWA system. Moreover,it is quite competitive in service provision,service coverage,frequency planning,terminal power consumption and cost for network construction.
文摘COVID-19 has disrupted people’s occupational daily activities with detrimental impact on their daily living performances and quality of life. Occupational therapy contributes toward restoring health by remediating limitation in participation in meaningful occupation with lifestyle redesign interventions. However, the research gap on the area of “participation-limitation” for the field of Occupational Therapy in cancer survivorship during the COVID-19 is largely untapped and unknown. This commentary-review paper discussed the PEO-OT (person-environment-occupation) grid as a conceptual toolkit for stimulating research in the domain of occupational participation—an essential aspect in the field of occupational therapy, for cancer survivors. It applies the expertise finding from a large Delphi study on research priority in the fields and integrating these into evidenced methodology, to provide a structure to guide the novice researchers towards rapid reviews, by selecting evidence-based methods to ensure contextually-relevant enquiry to identify the “occupational-participation issues”—<em>i.e.</em>, an emerging social determinant of health, affecting the daily self-management of cancer survivors with or without comorbidities.
文摘The paper analyzes the status quo of E-commerce application in Wenzhou's small and medium enterprises. This survey selects the 100 prominent small and medium enterprises covering chemical engineering, shoes, apparel, machinery, furniture, glasses, lighters, pen and pencil, electric and electronics as the investigating targets and issues the questionnaires to them. The result indicates that, the status quo of E-commerce application in Wenzhou's small and medium enterprises are worrisome, which is obviously way behind other cities. Based on that, the paper analyzes the reasons in combination with visiting them, and also proposes the corresponding strategies and predicts its prospect in the end.
文摘Studies on the mechanical behaviour of squeeze-cast SiCw / Al composites have been revjewed. The results show that SiCw / Al composites exhibit improved mechan ical properties and cyclic hard ening. The reasons leading to the above results are discussed. Localized deformation near SiC whiskers plays an important role in the initiation of microcracks in the composites, and the fracture of the composites is caused by the abrupt linking of microcracks
文摘In this paper, the author presented an overview of scientific research in universities of Vietnam in present and analyzed and assessed its effects on the quality of education in universities. The information to write this article was obtained in the references and from the management practice for the universities and the research institute.