Potential applications of Nano-scale science and technology are discussed in mineralogy, ore deposits, cosmochemistry and environmental sciences. Adsorption of nanometersized gold was experimentally studied on a varie...Potential applications of Nano-scale science and technology are discussed in mineralogy, ore deposits, cosmochemistry and environmental sciences. Adsorption of nanometersized gold was experimentally studied on a variety of minerals and rocks.展开更多
Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applic...Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.展开更多
Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applic...Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.展开更多
Terahertz wave, sitting in the gap between middle infrared and millimeter wave, has been known as the last vacant area in spectrum that has not been quite understood and brought into applications. It has been the focu...Terahertz wave, sitting in the gap between middle infrared and millimeter wave, has been known as the last vacant area in spectrum that has not been quite understood and brought into applications. It has been the focus of research worldwide since early 1990s. Due to the unique characteristics of Terahertz wave, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, biomedical imaging, etc.展开更多
Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applic...Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.展开更多
The production. characteristics. and commercialization of monolithic and composite titanium aluminides are summanzed with emphasis on use in the demanding aerospace industry. The attractive elevated temperature proper...The production. characteristics. and commercialization of monolithic and composite titanium aluminides are summanzed with emphasis on use in the demanding aerospace industry. The attractive elevated temperature properties combined with alow density make these materials of great interest, but inherently low 'forgiveness', and environmental concerns, must be overcome before widespread use will occur One synthesis method for the production of monolithic titanium aluminides-mechanical alloying- will be discussed in detail展开更多
The inception of radioisotope and its application in China are introduced. The research,development, production, application progress and the future development prospect of radioisotope and its products are described.
The invention and development of new research concepts, novel methodologies, and novel bioanalytical techniques are essential in advancing the animal sciences, which include feed and nutrition science. This article in...The invention and development of new research concepts, novel methodologies, and novel bioanalytical techniques are essential in advancing the animal sciences, which include feed and nutrition science. This article introduces a novel approach that shows the potential of advanced synchrotron-based bioanalytical technology for studying the effects of molecular structural changes in feeds induced by various treatments （e.g., genetic modification, gene silencing, heat-related feed processing, biofuel processing） in relation to nutrient digestion and absorption in animals. Advanced techniques based on synchrotron radiation （e.g., synchrotron radiation infrared microspectroscopy （SR-IMS） and synchrotron radiation X-ray techniques） have been developed as a fast, noninvasive, bioanalytical technology that, unlike traditional wet chemistry methods, does not damage or destroy the inherent molecular structure of the feed. The cutting-edge and advanced research tool of synchrotron light （which is a million times brighter than sunlight） can be used to explore the inherent structure of biological tissue at cellular and molecular levels at ultra-high spatial resolutions. In conclusion, the use of recently developed bioanalytical techniques based on synchrotron radiation along with common research techniques is leading to dramatic advances in animal feed and nutritional research.展开更多
This article firstly explains the concepts of artificial intelligence and algorithm separately,then determines the research status of artificial intelligence and machine learning in the background of the increasing po...This article firstly explains the concepts of artificial intelligence and algorithm separately,then determines the research status of artificial intelligence and machine learning in the background of the increasing popularity of artificial intelligence,and finally briefly describes the machine learning algorithm in the field of artificial intelligence,as well as puts forward appropriate development prospects,in order to provide theoretical reference for industry insider.展开更多
Erosive burning is a common burning phenomenon of the gunpowder with inner holes.The actual combustion law of the gunpowder with inner holes can be changed by erosive burning.Pressure difference between the inner and ...Erosive burning is a common burning phenomenon of the gunpowder with inner holes.The actual combustion law of the gunpowder with inner holes can be changed by erosive burning.Pressure difference between the inner and the outer of hole caused by loading density variation of the propellant charge makes erosive burning occur at inner holes during in-bore burning.The effect of erosive burning on burning speed of the propellant is studied by using the effects of flow rate,heat transfer and erosion of the combustion gas in inner holes on burning rate.The mathematic model of erosive burning of the propellant is established.The effects of the factors such as loading density,inner hole size and grain length on erosive burning and interior ballistic performance are analyzed.The method to improve the bore pressure for small charge mass and small firing range by erosive burning is proposed.展开更多
Science and technology innovation has always been present in Asia,but its application in disaster risk reduction(DRR) has been differential.In Asia,globally significant hotspots of disasters and economic development h...Science and technology innovation has always been present in Asia,but its application in disaster risk reduction(DRR) has been differential.In Asia,globally significant hotspots of disasters and economic development have emerged in which the application of science and technology in DRR has become an essential requirement for informed decision making.Science has supported establishment and implementation of major international initiatives in DRR,including the Hyogo Framework for Action 2005-2015.The more recent Sendai Framework for DRR 2015-2030 recognizes the importance of science and technology in all of its priority action areas,and subsequent global and regional forums and conferences have reconfirmed science and technology's importance.To perceive and monitor the progress of science and technology in DRR,a qualitative assessment of different countries is made using three major attributes:(1) science-based decision making;(2) investment in science and technology;and(3) the intensity of science's link to the public.This assessment exercise points out several strengths and weaknesses in science and technology application;the method can be employed to develop future multistakeholder and multidisciplinary science and technology plans at the country level.To implement regional and national activities,a set of 15 recommendations is put forward,which will strengthen the collective regional "science voice" in DRR.展开更多
以某高校前沿科学中心为研究对象,应用建筑信息模型(building information modeling,BIM)技术进行机电管线系统性综合设计。在明确机电管线深化设计原则,分析BIM模型审核报告的基础上,从综合支吊架设计、管线翻弯避让、管线空间布局优...以某高校前沿科学中心为研究对象,应用建筑信息模型(building information modeling,BIM)技术进行机电管线系统性综合设计。在明确机电管线深化设计原则,分析BIM模型审核报告的基础上,从综合支吊架设计、管线翻弯避让、管线空间布局优化、抗震支架设置4个维度对项目机电管线进行综合设计优化。结果表明,借助BIM技术精准分析各专业管线的空间位置关系,合理确定梁底净空高度,深化设备机房及管线交汇区域设计,优化机电设备细部点位,最大限度降低碰撞点数,可有效促使机电各专业的协调配合,能大幅提高机电施工质量。展开更多
文摘Potential applications of Nano-scale science and technology are discussed in mineralogy, ore deposits, cosmochemistry and environmental sciences. Adsorption of nanometersized gold was experimentally studied on a variety of minerals and rocks.
文摘Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.
文摘Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.
文摘Terahertz wave, sitting in the gap between middle infrared and millimeter wave, has been known as the last vacant area in spectrum that has not been quite understood and brought into applications. It has been the focus of research worldwide since early 1990s. Due to the unique characteristics of Terahertz wave, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, biomedical imaging, etc.
文摘Terahertz waves, sitting in the gap between the middle infrared and millimeter wave regions, are known as the last vacant area of the electromagnetic spectrum that has not quite been understood and brought into applications. The Terahertz region has been the focus of research worldwide since early 1990s. Due to their unique characteristics, Terahertz technologies have a wide range of applications, such as hazard detection, high speed data communications, radio astronomy, and biomedical imaging.
文摘The production. characteristics. and commercialization of monolithic and composite titanium aluminides are summanzed with emphasis on use in the demanding aerospace industry. The attractive elevated temperature properties combined with alow density make these materials of great interest, but inherently low 'forgiveness', and environmental concerns, must be overcome before widespread use will occur One synthesis method for the production of monolithic titanium aluminides-mechanical alloying- will be discussed in detail
文摘The inception of radioisotope and its application in China are introduced. The research,development, production, application progress and the future development prospect of radioisotope and its products are described.
文摘The invention and development of new research concepts, novel methodologies, and novel bioanalytical techniques are essential in advancing the animal sciences, which include feed and nutrition science. This article introduces a novel approach that shows the potential of advanced synchrotron-based bioanalytical technology for studying the effects of molecular structural changes in feeds induced by various treatments （e.g., genetic modification, gene silencing, heat-related feed processing, biofuel processing） in relation to nutrient digestion and absorption in animals. Advanced techniques based on synchrotron radiation （e.g., synchrotron radiation infrared microspectroscopy （SR-IMS） and synchrotron radiation X-ray techniques） have been developed as a fast, noninvasive, bioanalytical technology that, unlike traditional wet chemistry methods, does not damage or destroy the inherent molecular structure of the feed. The cutting-edge and advanced research tool of synchrotron light （which is a million times brighter than sunlight） can be used to explore the inherent structure of biological tissue at cellular and molecular levels at ultra-high spatial resolutions. In conclusion, the use of recently developed bioanalytical techniques based on synchrotron radiation along with common research techniques is leading to dramatic advances in animal feed and nutritional research.
文摘This article firstly explains the concepts of artificial intelligence and algorithm separately,then determines the research status of artificial intelligence and machine learning in the background of the increasing popularity of artificial intelligence,and finally briefly describes the machine learning algorithm in the field of artificial intelligence,as well as puts forward appropriate development prospects,in order to provide theoretical reference for industry insider.
文摘Erosive burning is a common burning phenomenon of the gunpowder with inner holes.The actual combustion law of the gunpowder with inner holes can be changed by erosive burning.Pressure difference between the inner and the outer of hole caused by loading density variation of the propellant charge makes erosive burning occur at inner holes during in-bore burning.The effect of erosive burning on burning speed of the propellant is studied by using the effects of flow rate,heat transfer and erosion of the combustion gas in inner holes on burning rate.The mathematic model of erosive burning of the propellant is established.The effects of the factors such as loading density,inner hole size and grain length on erosive burning and interior ballistic performance are analyzed.The method to improve the bore pressure for small charge mass and small firing range by erosive burning is proposed.
文摘Science and technology innovation has always been present in Asia,but its application in disaster risk reduction(DRR) has been differential.In Asia,globally significant hotspots of disasters and economic development have emerged in which the application of science and technology in DRR has become an essential requirement for informed decision making.Science has supported establishment and implementation of major international initiatives in DRR,including the Hyogo Framework for Action 2005-2015.The more recent Sendai Framework for DRR 2015-2030 recognizes the importance of science and technology in all of its priority action areas,and subsequent global and regional forums and conferences have reconfirmed science and technology's importance.To perceive and monitor the progress of science and technology in DRR,a qualitative assessment of different countries is made using three major attributes:(1) science-based decision making;(2) investment in science and technology;and(3) the intensity of science's link to the public.This assessment exercise points out several strengths and weaknesses in science and technology application;the method can be employed to develop future multistakeholder and multidisciplinary science and technology plans at the country level.To implement regional and national activities,a set of 15 recommendations is put forward,which will strengthen the collective regional "science voice" in DRR.
文摘以某高校前沿科学中心为研究对象,应用建筑信息模型(building information modeling,BIM)技术进行机电管线系统性综合设计。在明确机电管线深化设计原则,分析BIM模型审核报告的基础上,从综合支吊架设计、管线翻弯避让、管线空间布局优化、抗震支架设置4个维度对项目机电管线进行综合设计优化。结果表明,借助BIM技术精准分析各专业管线的空间位置关系,合理确定梁底净空高度,深化设备机房及管线交汇区域设计,优化机电设备细部点位,最大限度降低碰撞点数,可有效促使机电各专业的协调配合,能大幅提高机电施工质量。
