[Objective] The research aimed to find the optimal condition of corn starch production in the laboratory and analyze the soaking effect.[Method] The orthogonal test was used to determine the suitable technological con...[Objective] The research aimed to find the optimal condition of corn starch production in the laboratory and analyze the soaking effect.[Method] The orthogonal test was used to determine the suitable technological condition.By the light microscope and the scanning electron microscope,the soaking effect was analyzed.[Result] The suitable soaking condition was：soaking time 48 h,soaking temperature 55 ℃ and SO2 concentration 0.2%.The microscopic analysis result was that the protein matrix was sufficiently decomposed in the suitable soaking condition.The soaking effect had the positive correlation with the decomposed degree of protein matrix.[Conclusion] The research provided the basis for the soaking technics research of corn starch in the laboratory.展开更多
A microcomputerized measurement system is developed.This system automatically acquiresan I-V characteristic curve in 5 seconds with the accuracy of 0.05％ FSR(full scale range).The Schottkyextrapolation field-free emi...A microcomputerized measurement system is developed.This system automatically acquiresan I-V characteristic curve in 5 seconds with the accuracy of 0.05％ FSR(full scale range).The Schottkyextrapolation field-free emission,the inflection-point emission,the flection-point emission,the average effec-tive work function.the Richardson work function,the work function distribution at the operation tempera-ture and other important information that reflects properties of cathodes are obtained by this system.The re-sults of analysing four types of cathodes demonstrate that this system is very suitable for measuring the activi-ty changes of the cathode in the processes of activation,ageing,poisoning and life test.It is proved that thissystem can also be used to monitor the actlvity of the cathode in the assembled tube by measuring a gridcontrolled travelling-wave tube.展开更多
People create network virtual space that is completely different from the real space through network information technologies.The characteristics of network virtual space are that the subject can obtain a similar real...People create network virtual space that is completely different from the real space through network information technologies.The characteristics of network virtual space are that the subject can obtain a similar real space experience.From the perspective of phenomenology of technics,in order to analyze the virtual space of the network,it is necessary to clear the phenomenological concepts,such as space,space experience,and virtual space experience,so as to know the type of network virtual space experience,explore the essential characteristics,and find solutions to the ethical conflicts in the virtual space experience of the network.展开更多
Professor Jason DeJong has been selected as the winner for the Distinguished Inaugural 2024 Biogeotechnics Lecture Award.Prof DeJong is a professor at the University of California,Davis.He is a PI for the NSF ERC Cent...Professor Jason DeJong has been selected as the winner for the Distinguished Inaugural 2024 Biogeotechnics Lecture Award.Prof DeJong is a professor at the University of California,Davis.He is a PI for the NSF ERC Centre for Bio-mediated and Bio-inspired Geotechnics and the Director of the NSF NHERI Centre for Geotechnical Modelling.Prof.DeJong is a world leader in several areas of research related to geotechnical engineering,in particular biogeotechnics.His major technical achievements have been in the areas of biogeotechnics,soil and site characterization,earthquake engineering,and geotechnical sustainability.Results from his research program have been disseminated through more than 250 publications,and his work has been recognized through numerous awards including the ASTM International Hogentogler Award(2x),ICE TK Hsieh Prize,ASCE Huber Research Prize,ASCE Casagrande Professional Development Award,Prakash Research Award,ICE Telford Premium Prize,ASCE Prakash Award,and as an ASCE Fellow.展开更多
文摘[Objective] The research aimed to find the optimal condition of corn starch production in the laboratory and analyze the soaking effect.[Method] The orthogonal test was used to determine the suitable technological condition.By the light microscope and the scanning electron microscope,the soaking effect was analyzed.[Result] The suitable soaking condition was：soaking time 48 h,soaking temperature 55 ℃ and SO2 concentration 0.2%.The microscopic analysis result was that the protein matrix was sufficiently decomposed in the suitable soaking condition.The soaking effect had the positive correlation with the decomposed degree of protein matrix.[Conclusion] The research provided the basis for the soaking technics research of corn starch in the laboratory.
文摘A microcomputerized measurement system is developed.This system automatically acquiresan I-V characteristic curve in 5 seconds with the accuracy of 0.05％ FSR(full scale range).The Schottkyextrapolation field-free emission,the inflection-point emission,the flection-point emission,the average effec-tive work function.the Richardson work function,the work function distribution at the operation tempera-ture and other important information that reflects properties of cathodes are obtained by this system.The re-sults of analysing four types of cathodes demonstrate that this system is very suitable for measuring the activi-ty changes of the cathode in the processes of activation,ageing,poisoning and life test.It is proved that thissystem can also be used to monitor the actlvity of the cathode in the assembled tube by measuring a gridcontrolled travelling-wave tube.
文摘People create network virtual space that is completely different from the real space through network information technologies.The characteristics of network virtual space are that the subject can obtain a similar real space experience.From the perspective of phenomenology of technics,in order to analyze the virtual space of the network,it is necessary to clear the phenomenological concepts,such as space,space experience,and virtual space experience,so as to know the type of network virtual space experience,explore the essential characteristics,and find solutions to the ethical conflicts in the virtual space experience of the network.
文摘Professor Jason DeJong has been selected as the winner for the Distinguished Inaugural 2024 Biogeotechnics Lecture Award.Prof DeJong is a professor at the University of California,Davis.He is a PI for the NSF ERC Centre for Bio-mediated and Bio-inspired Geotechnics and the Director of the NSF NHERI Centre for Geotechnical Modelling.Prof.DeJong is a world leader in several areas of research related to geotechnical engineering,in particular biogeotechnics.His major technical achievements have been in the areas of biogeotechnics,soil and site characterization,earthquake engineering,and geotechnical sustainability.Results from his research program have been disseminated through more than 250 publications,and his work has been recognized through numerous awards including the ASTM International Hogentogler Award(2x),ICE TK Hsieh Prize,ASCE Huber Research Prize,ASCE Casagrande Professional Development Award,Prakash Research Award,ICE Telford Premium Prize,ASCE Prakash Award,and as an ASCE Fellow.
