Lithium-sulfur batteries(LSBs)boasting remarkable energy density have garnered significant attention within academic and industrial spheres.Nevertheless,the progression of LSBs remains constrained by the languid redox...Lithium-sulfur batteries(LSBs)boasting remarkable energy density have garnered significant attention within academic and industrial spheres.Nevertheless,the progression of LSBs remains constrained by the languid redox kinetics intrinsic to sulfur and the pronounced shuttle effect induced by lithium polysulfides(Li PSs),which seriously affecting the energy density,cycling life and rate capacity.The conceptualization and implementation of catalytic materials stand acknowledged as a propitious stratagem for orchestrating kinetic modulation,particularly in excavating the conversion of LiPSs and has evolved into a focal point for disposing.Among them,chalcogenide catalytic materials(CCMs)have shown satisfactory catalytic effects ascribe to the unique physicochemical properties,and have been extensively developed in recent years.Considering the lack of systematic summary regarding the development of CCMs and corresponding performance optimization strategies,herein,we initiate a comprehensive review regarding the recent progress of CCMs for effective collaborative immobilization and accelerated transformation kinetics of Li PSs.Following that,the modulation strategies to improve the catalytic activity of CCMs are summarized,including structural engineering(morphology engineering,surface/interface engineering,crystal engineering)and electronic engineering(doping and vacancy,etc.).Finally,the application prospect of CCMs in LSBs is clarified,and some enlightenment is provided for the reasonable design of CCMs serving practical LSBs.展开更多
The Faculty of Mechanical ＆ Electronic Engineering of the China University of Petroleum （Beijing） has an academic staff of sixty-three, of whom fourteen are professors; nineteen are associate professors. It offers ...The Faculty of Mechanical ＆ Electronic Engineering of the China University of Petroleum （Beijing） has an academic staff of sixty-three, of whom fourteen are professors; nineteen are associate professors. It offers students academic programs for bachelor, master and doctoral degrees in such majors as mechanical engineering, materials science and engineering, control engineering, electronic ＆ information engineering and safety engineering.展开更多
Electronic equipment is widely used in life and social production, bringing convenience to peoples lives and creating greater productivity. To some extent, the application of electronic engineering automation can brin...Electronic equipment is widely used in life and social production, bringing convenience to peoples lives and creating greater productivity. To some extent, the application of electronic engineering automation can bring about a revolution in production, reduce the input of human cost, liberate peoples hands, and help people pay more attention to the research of high-tech electronic engineering automation, and how to integrate with production and daily life to make the most of the advantages of electronic engineering automation. The article is to explore the changes in peoples lives brought about by the modernization of electronic engineering automation, based on the study of electronic equipment in daily use, how to use communication, navigation and infrared technology in electronic engineering to change peoples life and mode of production, and how to better use electronic engineering automation research.展开更多
With the arrival of the intelligence era of Industry 4.0,social development has shown complex and diversified characteristics,gradually forming an innovation ecological environment constructed by vertical interaction ...With the arrival of the intelligence era of Industry 4.0,social development has shown complex and diversified characteristics,gradually forming an innovation ecological environment constructed by vertical interaction of multi-layer innovation systems and horizontal collaboration of multiple organizations and departments,which has posed extremely challenging requirements for higher engineering education to cultivate engineering talents with comprehensive engineering qualities who can solve complex engineering problems.However,practical engineering problems may involve a complex knowledge chain of interdisciplinary and multi-disciplinary cross-coupling.Therefore,higher engineering education needs to form a new interdisciplinary and multi-disciplinary integrated engineering innovation talent training system.Based on the characteristics of the mechanical and electronic engineering major,we will reshape and reconstruct the core courses of the mechanical and electronic engineering major.Two core courses are formed:Drive and Measurement and Control I and Drive and Measurement and Control II,with information flow and energy flow as the main lines,following up with the comprehensive practical curriculum system based on the unity of knowledge and practice and ability-oriented thinking,supporting teaching objectives,promoting students’individual development,and providing guidelines for relevant curriculum reforms.展开更多
Under the background of new engineering,the reform of the comprehensive practical course system for mechanical and electronic engineering majors actively responds to the challenges posed by the new round of technologi...Under the background of new engineering,the reform of the comprehensive practical course system for mechanical and electronic engineering majors actively responds to the challenges posed by the new round of technological revolution and industrial transformation to higher education,cultivating top-notch innovative intellectuals with comprehensive engineering qualities,meeting the requirements of being able to solve complex engineering problems rather than just cognitive capabilities,forming two core courses through reconstructing and reshaping the core courses of the major.The core courses include Drive,Measurement,and Control I and Drive,Measurement,and Control II,which highlight the comprehensive framework of mechanical and electronic engineering professional knowledge,continuing the comprehensive practical course system based on the unity of knowledge and practice,following the trend of new engineering,highlighting the practicality of professional innovation,assisting engineering education reform,and promoting high-quality development of new engineering professionals cultivation.展开更多
Mechanical and electronic engineering covers many subjects, and automatic mechanical manufacturing is the key. Compared with traditional mechanical manufacturing, it can be seen that the mechanical equipment controlle...Mechanical and electronic engineering covers many subjects, and automatic mechanical manufacturing is the key. Compared with traditional mechanical manufacturing, it can be seen that the mechanical equipment controlled by automatic technology can effectively improve the production efficiency. In our country, artificial intelligence technology is highly valued, and its development speed is also fast, especially the advantage of data processing is great. Its full application can promote the mechanical and electronic engineering, and the economic benefits of related enterprises will also be improved. Based on this, this paper mainly discusses how to apply artificial intelligence technology in mechanical and electronic engineering.展开更多
Synchronously achieving morphological and electronic engineering control is crucial but challenging for enhancing the oxygen evolution reaction(OER)performance of nickel-iron based catalysts.Herein,a ruthenium and sul...Synchronously achieving morphological and electronic engineering control is crucial but challenging for enhancing the oxygen evolution reaction(OER)performance of nickel-iron based catalysts.Herein,a ruthenium and sulfur co-modified nickel-iron hydroxide(S_(A)Ru_(T)-FeNiOH_(x)-5h)was synthesized by a distributed room-temperature impregnation method.It was found that the solubility product difference between ruthenium and nickel-iron hydroxide can promote the rapid nucleation of the catalyst and form finer nanosheet structures,thereby increasing 1.25 times for the contact area between the catalyst and the electrolyte.Meanwhile,the subsequent deposition of sulfur can act as an electronic modulator,promoting the transfer of surface charge at nickel sites and increasing the oxidation state of nickel.Theoretical calculations indicate that the combination of ruthenium and sulfur can effectively optimize the OER reaction pathway and lower the activation energy barrier of the rate-determining step,endowing S_(A)Ru_(T)-FeNiOH_(x)-5h an excellent OER performance with a low overpotential of 253 mV at 1000 mA/cm^(2) and long-term stability(500 h).In the future,it is hoped that this strategy of synergistic control of morphology and electronic structure can be applied to the development of other highly active catalysts.展开更多
Proton-exchange membrane fuel cells(PEMFCs)are an efficient form of renewable energy technology,but the extensive use of Pt-based catalysts has significantly hindered their large-scale commercialization.To address thi...Proton-exchange membrane fuel cells(PEMFCs)are an efficient form of renewable energy technology,but the extensive use of Pt-based catalysts has significantly hindered their large-scale commercialization.To address this issue,the development of high-performance,low-cost catalysts is essential.Atomically dispersed low/non-Pt metal carbon-based catalysts are known for their high atomic utilization efficiency,high costeffectiveness,and encouraging activity.However,when they are applied in PEMFCs,durability becomes an enormous challenge.In this review,the composition,working principle,and oxygen reduction reaction(ORR)mechanism of PEMFCs are firstly introduced.Furthermore,a comprehensive overview of the factors affecting the stability of atomically dispersed low/non-Pt metal carbon-based catalysts in the ORR of PEMFCs is summarized.Meanwhile,according to different degradation mechanisms,corresponding improvement strategies are proposed.Despite the fact that some conclusions have been obtained regarding the improved stability for atomically dispersed low/non-Pt metal carbon-based catalysts in the recent excellent literature,they are still not ideal for practical application.Therefore,significant opportunities remain to commercialize highly stable PEMFC catalysts by gaining a deeper understanding of precise degradation mechanisms and identifying the most effective strategies to improve their stability.Finally,we deliberate on further research directions in the development of highly active,long-lifespan,and low-cost electrocatalysts to promote commercialization of PEMFCs.展开更多
With the rapid development of electronic information engineering,high-speed digital circuits have been increasingly widely applied in various fields.In high-speed digital circuits,signal integrity is prone to interfer...With the rapid development of electronic information engineering,high-speed digital circuits have been increasingly widely applied in various fields.In high-speed digital circuits,signal integrity is prone to interference from various external factors,leading to issues such as signal distortion or degradation of system performance.Based on this,this paper conducts research on the optimization strategies for signal integrity of high-speed digital circuits in electronic information engineering.It deeply analyzes the importance of high-speed digital circuits,elaborates on the challenges they face and the specific manifestations of signal integrity issues,and proposes a series of optimization strategies in electronic information engineering.The aim is to improve the signal integrity of highspeed digital circuits and provide theoretical support and practical guidance for the development of related fields.展开更多
This paper presents CMOS circuit designs of a ternary adder and a ternary multiplier,formulated using transmission function theory.Binary carry signals appearing in these designs allow conventional look-ahead carry te...This paper presents CMOS circuit designs of a ternary adder and a ternary multiplier,formulated using transmission function theory.Binary carry signals appearing in these designs allow conventional look-ahead carry techniques to be used.Compared with previous similar designs,the circuits proposed in this paper have advantages such as low dissipation,low output impedance,and simplicity of construction.展开更多
This paper proposes the application strategy of the intelligent technology in electronic engineering automation control. Artificial intelligence technology is about to realize the calculation of perception, reasoning ...This paper proposes the application strategy of the intelligent technology in electronic engineering automation control. Artificial intelligence technology is about to realize the calculation of perception, reasoning and behavior study of it is different from most of the psychology, because it is more of an emphasis on the calculation, the artificial intelligence is also different from most of the computer science as because it is more of an emphasis on the perception, reasoning, and behavior, and future applications of artificial intelligence is beyond imagination. Regarding the multi-agent system target identification data fusion, the goal type is a proposition, each intelligent body gives through processing regarding the goal type judgment result is evidence, we discussed in detail of the essential applications on the item that will promote the further development.展开更多
Electronic engineering of gallium nitride(Ga N) is critical for enhancement of its electrode performance.In this work, copper(Cu) cation substituted Ga N(Cu-Ga N) nanowires were fabricated to understand the electronic...Electronic engineering of gallium nitride(Ga N) is critical for enhancement of its electrode performance.In this work, copper(Cu) cation substituted Ga N(Cu-Ga N) nanowires were fabricated to understand the electronically engineered electrochemical performance for Li ion storage. Cu cation substitution was revealed at atomic level by combination of X-ray photoelectron spectroscopy(XPS), X-ray absorption fine structure(XAFS), density functional theory(DFT) simulation, and so forth. The Cu-Ga N electrode delivered high capacity of 813.2 m A h g^(-1) at 0.1 A g^(-1) after 200 cycles, increased by 66% relative to the unsubstituted Ga N electrode. After 2000 cycles at 10 A g^(-1),the reversible capacity was still maintained at326.7 m A h g^(-1). The DFT calculations revealed that Cu substitution introduced the impurity electronic states and efficient interatomic electron migration, which can enhance the charge transfer efficiency and reduce the Li ion adsorption energy on the Cu-Ga N electrode. The ex-situ SEM, TEM, HRTEM, and SAED analyses demonstrated the reversible intercalation Li ion storage mechanism and good structural stability. The concept of atomic-arrangement-assisted electronic engineering strategy is anticipated to open up opportunities for advanced energy storage applications.展开更多
To further enhance the overall service quality of China’s hospitals and improve the trust of the majority of patients in hospitals,this paper takes intelligent hospital management as the object of study,analyzes the ...To further enhance the overall service quality of China’s hospitals and improve the trust of the majority of patients in hospitals,this paper takes intelligent hospital management as the object of study,analyzes the importance of electronic information engineering technology applied in hospital management,and discusses the specific application methods of electronic information engineering in hospital management.This aims the existing problems in the current hospital management,such as insufficient degree of informatization,data sharing difficulties,lack of professionals,etc.Corresponding improvement measures are proposed,including strengthening the construction of informatization,promoting data sharing,and cultivating professionals.It is hoped that this study will enable the majority of hospital managers to make better use of electronic information engineering technology to effectively solve the current problems faced by hospitals and to continuously improve the comprehensive competitiveness of China’s hospitals.展开更多
Computer network technology has a very important role in electronic information engineering.The application of this technology not only enriches the traditional information engineering functions,but also effectively g...Computer network technology has a very important role in electronic information engineering.The application of this technology not only enriches the traditional information engineering functions,but also effectively guarantees the efficiency and quality.At present,due to the wide variety of external information that Chinese citizens are exposed to,in addition to the variegated and mixed content,it is easy for information to be leaked or stolen.In order to avoid similar situations,it is necessary for people to pay more attention to network system security,so as to ensure that the quality of life of citizens can be guaranteed.In view of that,this paper discusses and analyzes the application of computer network technology in electronic information engineering.展开更多
The Journal of Systems Engineering and Electronics is a comprehensive academic periodical jointly sponsored by Defense Technology Academy of China Aerospace Science ＆ Industry Corporation, Chinese Society of Astronau...The Journal of Systems Engineering and Electronics is a comprehensive academic periodical jointly sponsored by Defense Technology Academy of China Aerospace Science ＆ Industry Corporation, Chinese Society of Astronautics, System Engineering Society of China, and Chinese Association for System Simulation. It started publication in 1990, and now is published bimonthly.展开更多
The Journal of Systems Engineering and Electronics （English Edition） is a comprehensive academic periodical jointly sponsored by the Second Academy of China Aerospace Science and Industry Corporation, the Chinese So...The Journal of Systems Engineering and Electronics （English Edition） is a comprehensive academic periodical jointly sponsored by the Second Academy of China Aerospace Science and Industry Corporation, the Chinese Society of Astronautics, the Systems Engineering Society of China and the Chinese Association for System Simulation. It started publication in 1990, and now appears six times a year, distributed at home and abroad.展开更多
This journal is devoted to the advancement of the science and technology of systems engineering and electronics through the dissemination of original archival research papers disclosing significant technical knowledge...This journal is devoted to the advancement of the science and technology of systems engineering and electronics through the dissemination of original archival research papers disclosing significant technical knowledge, exploratory developments, and applications in astronautics, aeronautics, and related fields. In addition, the journal also publishes survey, expository and tutorial papers. Both theory and applications will be equally emphasized. The scope of the Journal is broad and multi-disciplinary. It covers systems science, modelling and simulation, aero-space system analysis, vehicle control, communication, radar, optoelectronic detector, information acquisition and processing, target and environmental features, remote sensing,展开更多
基金financially supported by the National Natural Science Foundation of China(No.U21A2077)the Taishan Scholar Project Foundation of Shandong Province(No.ts20190908)+1 种基金the Natural Science Foundation of Shandong Province(No.ZR2021ZD05)the China Postdoctoral Science Foundation(Nos.2023TQ0192,2023M742065)。
文摘Lithium-sulfur batteries(LSBs)boasting remarkable energy density have garnered significant attention within academic and industrial spheres.Nevertheless,the progression of LSBs remains constrained by the languid redox kinetics intrinsic to sulfur and the pronounced shuttle effect induced by lithium polysulfides(Li PSs),which seriously affecting the energy density,cycling life and rate capacity.The conceptualization and implementation of catalytic materials stand acknowledged as a propitious stratagem for orchestrating kinetic modulation,particularly in excavating the conversion of LiPSs and has evolved into a focal point for disposing.Among them,chalcogenide catalytic materials(CCMs)have shown satisfactory catalytic effects ascribe to the unique physicochemical properties,and have been extensively developed in recent years.Considering the lack of systematic summary regarding the development of CCMs and corresponding performance optimization strategies,herein,we initiate a comprehensive review regarding the recent progress of CCMs for effective collaborative immobilization and accelerated transformation kinetics of Li PSs.Following that,the modulation strategies to improve the catalytic activity of CCMs are summarized,including structural engineering(morphology engineering,surface/interface engineering,crystal engineering)and electronic engineering(doping and vacancy,etc.).Finally,the application prospect of CCMs in LSBs is clarified,and some enlightenment is provided for the reasonable design of CCMs serving practical LSBs.
文摘The Faculty of Mechanical ＆ Electronic Engineering of the China University of Petroleum （Beijing） has an academic staff of sixty-three, of whom fourteen are professors; nineteen are associate professors. It offers students academic programs for bachelor, master and doctoral degrees in such majors as mechanical engineering, materials science and engineering, control engineering, electronic ＆ information engineering and safety engineering.
文摘Electronic equipment is widely used in life and social production, bringing convenience to peoples lives and creating greater productivity. To some extent, the application of electronic engineering automation can bring about a revolution in production, reduce the input of human cost, liberate peoples hands, and help people pay more attention to the research of high-tech electronic engineering automation, and how to integrate with production and daily life to make the most of the advantages of electronic engineering automation. The article is to explore the changes in peoples lives brought about by the modernization of electronic engineering automation, based on the study of electronic equipment in daily use, how to use communication, navigation and infrared technology in electronic engineering to change peoples life and mode of production, and how to better use electronic engineering automation research.
文摘With the arrival of the intelligence era of Industry 4.0,social development has shown complex and diversified characteristics,gradually forming an innovation ecological environment constructed by vertical interaction of multi-layer innovation systems and horizontal collaboration of multiple organizations and departments,which has posed extremely challenging requirements for higher engineering education to cultivate engineering talents with comprehensive engineering qualities who can solve complex engineering problems.However,practical engineering problems may involve a complex knowledge chain of interdisciplinary and multi-disciplinary cross-coupling.Therefore,higher engineering education needs to form a new interdisciplinary and multi-disciplinary integrated engineering innovation talent training system.Based on the characteristics of the mechanical and electronic engineering major,we will reshape and reconstruct the core courses of the mechanical and electronic engineering major.Two core courses are formed:Drive and Measurement and Control I and Drive and Measurement and Control II,with information flow and energy flow as the main lines,following up with the comprehensive practical curriculum system based on the unity of knowledge and practice and ability-oriented thinking,supporting teaching objectives,promoting students’individual development,and providing guidelines for relevant curriculum reforms.
文摘Under the background of new engineering,the reform of the comprehensive practical course system for mechanical and electronic engineering majors actively responds to the challenges posed by the new round of technological revolution and industrial transformation to higher education,cultivating top-notch innovative intellectuals with comprehensive engineering qualities,meeting the requirements of being able to solve complex engineering problems rather than just cognitive capabilities,forming two core courses through reconstructing and reshaping the core courses of the major.The core courses include Drive,Measurement,and Control I and Drive,Measurement,and Control II,which highlight the comprehensive framework of mechanical and electronic engineering professional knowledge,continuing the comprehensive practical course system based on the unity of knowledge and practice,following the trend of new engineering,highlighting the practicality of professional innovation,assisting engineering education reform,and promoting high-quality development of new engineering professionals cultivation.
文摘Mechanical and electronic engineering covers many subjects, and automatic mechanical manufacturing is the key. Compared with traditional mechanical manufacturing, it can be seen that the mechanical equipment controlled by automatic technology can effectively improve the production efficiency. In our country, artificial intelligence technology is highly valued, and its development speed is also fast, especially the advantage of data processing is great. Its full application can promote the mechanical and electronic engineering, and the economic benefits of related enterprises will also be improved. Based on this, this paper mainly discusses how to apply artificial intelligence technology in mechanical and electronic engineering.
基金financially supported by Shandong Provincial Natural Science Foundation(No.ZR2024QB021)Qingdao Natural Science Foundation(No.24–4-4-zrjj-21-jch)National Natural Science Foundation of China(Nos.62204098,62304124,22309107)。
文摘Synchronously achieving morphological and electronic engineering control is crucial but challenging for enhancing the oxygen evolution reaction(OER)performance of nickel-iron based catalysts.Herein,a ruthenium and sulfur co-modified nickel-iron hydroxide(S_(A)Ru_(T)-FeNiOH_(x)-5h)was synthesized by a distributed room-temperature impregnation method.It was found that the solubility product difference between ruthenium and nickel-iron hydroxide can promote the rapid nucleation of the catalyst and form finer nanosheet structures,thereby increasing 1.25 times for the contact area between the catalyst and the electrolyte.Meanwhile,the subsequent deposition of sulfur can act as an electronic modulator,promoting the transfer of surface charge at nickel sites and increasing the oxidation state of nickel.Theoretical calculations indicate that the combination of ruthenium and sulfur can effectively optimize the OER reaction pathway and lower the activation energy barrier of the rate-determining step,endowing S_(A)Ru_(T)-FeNiOH_(x)-5h an excellent OER performance with a low overpotential of 253 mV at 1000 mA/cm^(2) and long-term stability(500 h).In the future,it is hoped that this strategy of synergistic control of morphology and electronic structure can be applied to the development of other highly active catalysts.
基金supported by the Key projects of the National Natural Science Foundation of China(grant nos.U22A20107 and 22479126)the Key projects of the Henan Provincial Science and Technology R&D Program Joint Fund(grant no.222301420001)the Distinguished Young Scholars Innovation Team of Zhengzhou University(grant no.32320275).
文摘Proton-exchange membrane fuel cells(PEMFCs)are an efficient form of renewable energy technology,but the extensive use of Pt-based catalysts has significantly hindered their large-scale commercialization.To address this issue,the development of high-performance,low-cost catalysts is essential.Atomically dispersed low/non-Pt metal carbon-based catalysts are known for their high atomic utilization efficiency,high costeffectiveness,and encouraging activity.However,when they are applied in PEMFCs,durability becomes an enormous challenge.In this review,the composition,working principle,and oxygen reduction reaction(ORR)mechanism of PEMFCs are firstly introduced.Furthermore,a comprehensive overview of the factors affecting the stability of atomically dispersed low/non-Pt metal carbon-based catalysts in the ORR of PEMFCs is summarized.Meanwhile,according to different degradation mechanisms,corresponding improvement strategies are proposed.Despite the fact that some conclusions have been obtained regarding the improved stability for atomically dispersed low/non-Pt metal carbon-based catalysts in the recent excellent literature,they are still not ideal for practical application.Therefore,significant opportunities remain to commercialize highly stable PEMFC catalysts by gaining a deeper understanding of precise degradation mechanisms and identifying the most effective strategies to improve their stability.Finally,we deliberate on further research directions in the development of highly active,long-lifespan,and low-cost electrocatalysts to promote commercialization of PEMFCs.
文摘With the rapid development of electronic information engineering,high-speed digital circuits have been increasingly widely applied in various fields.In high-speed digital circuits,signal integrity is prone to interference from various external factors,leading to issues such as signal distortion or degradation of system performance.Based on this,this paper conducts research on the optimization strategies for signal integrity of high-speed digital circuits in electronic information engineering.It deeply analyzes the importance of high-speed digital circuits,elaborates on the challenges they face and the specific manifestations of signal integrity issues,and proposes a series of optimization strategies in electronic information engineering.The aim is to improve the signal integrity of highspeed digital circuits and provide theoretical support and practical guidance for the development of related fields.
基金Project supported by the National Natural Science Foundation of China.
文摘This paper presents CMOS circuit designs of a ternary adder and a ternary multiplier,formulated using transmission function theory.Binary carry signals appearing in these designs allow conventional look-ahead carry techniques to be used.Compared with previous similar designs,the circuits proposed in this paper have advantages such as low dissipation,low output impedance,and simplicity of construction.
文摘This paper proposes the application strategy of the intelligent technology in electronic engineering automation control. Artificial intelligence technology is about to realize the calculation of perception, reasoning and behavior study of it is different from most of the psychology, because it is more of an emphasis on the calculation, the artificial intelligence is also different from most of the computer science as because it is more of an emphasis on the perception, reasoning, and behavior, and future applications of artificial intelligence is beyond imagination. Regarding the multi-agent system target identification data fusion, the goal type is a proposition, each intelligent body gives through processing regarding the goal type judgment result is evidence, we discussed in detail of the essential applications on the item that will promote the further development.
基金supported by the National Natural Science Foundation of China(51672144,51572137,5170218121905152,52072196,52002199,52002200)the Major Basic Research Program of Natural Science Foundation of Shandong Province(ZR2020ZD09)+5 种基金the Shandong Provincial Key Research and Development Program(SPKR&DP)(2019GGX102055)the Natural Science Foundation of Shandong Province(ZR2019BEM042 ZR2020QE063,ZR2020MB045)the Innovation and Technology Program of Shandong Province(2020KJA004)the Innovation Pilot Project of Integration of Science,Education and Industry of Shandong Province(2020KJC-CG04)the Guangdong Basic and Applied Basic Research Foundation(019A15151109332020A1515111086,2020A1515110219)the Shandong Provincial Universities Young Innovative Talent Incubation ProgramInorganic Non-metallic Materials Research and Innovation Team,and Taishan Scholars Program of Shandong Province(ts201511034)。
文摘Electronic engineering of gallium nitride(Ga N) is critical for enhancement of its electrode performance.In this work, copper(Cu) cation substituted Ga N(Cu-Ga N) nanowires were fabricated to understand the electronically engineered electrochemical performance for Li ion storage. Cu cation substitution was revealed at atomic level by combination of X-ray photoelectron spectroscopy(XPS), X-ray absorption fine structure(XAFS), density functional theory(DFT) simulation, and so forth. The Cu-Ga N electrode delivered high capacity of 813.2 m A h g^(-1) at 0.1 A g^(-1) after 200 cycles, increased by 66% relative to the unsubstituted Ga N electrode. After 2000 cycles at 10 A g^(-1),the reversible capacity was still maintained at326.7 m A h g^(-1). The DFT calculations revealed that Cu substitution introduced the impurity electronic states and efficient interatomic electron migration, which can enhance the charge transfer efficiency and reduce the Li ion adsorption energy on the Cu-Ga N electrode. The ex-situ SEM, TEM, HRTEM, and SAED analyses demonstrated the reversible intercalation Li ion storage mechanism and good structural stability. The concept of atomic-arrangement-assisted electronic engineering strategy is anticipated to open up opportunities for advanced energy storage applications.
文摘To further enhance the overall service quality of China’s hospitals and improve the trust of the majority of patients in hospitals,this paper takes intelligent hospital management as the object of study,analyzes the importance of electronic information engineering technology applied in hospital management,and discusses the specific application methods of electronic information engineering in hospital management.This aims the existing problems in the current hospital management,such as insufficient degree of informatization,data sharing difficulties,lack of professionals,etc.Corresponding improvement measures are proposed,including strengthening the construction of informatization,promoting data sharing,and cultivating professionals.It is hoped that this study will enable the majority of hospital managers to make better use of electronic information engineering technology to effectively solve the current problems faced by hospitals and to continuously improve the comprehensive competitiveness of China’s hospitals.
文摘Computer network technology has a very important role in electronic information engineering.The application of this technology not only enriches the traditional information engineering functions,but also effectively guarantees the efficiency and quality.At present,due to the wide variety of external information that Chinese citizens are exposed to,in addition to the variegated and mixed content,it is easy for information to be leaked or stolen.In order to avoid similar situations,it is necessary for people to pay more attention to network system security,so as to ensure that the quality of life of citizens can be guaranteed.In view of that,this paper discusses and analyzes the application of computer network technology in electronic information engineering.
文摘The Journal of Systems Engineering and Electronics is a comprehensive academic periodical jointly sponsored by Defense Technology Academy of China Aerospace Science ＆ Industry Corporation, Chinese Society of Astronautics, System Engineering Society of China, and Chinese Association for System Simulation. It started publication in 1990, and now is published bimonthly.
文摘The Journal of Systems Engineering and Electronics （English Edition） is a comprehensive academic periodical jointly sponsored by the Second Academy of China Aerospace Science and Industry Corporation, the Chinese Society of Astronautics, the Systems Engineering Society of China and the Chinese Association for System Simulation. It started publication in 1990, and now appears six times a year, distributed at home and abroad.
文摘This journal is devoted to the advancement of the science and technology of systems engineering and electronics through the dissemination of original archival research papers disclosing significant technical knowledge, exploratory developments, and applications in astronautics, aeronautics, and related fields. In addition, the journal also publishes survey, expository and tutorial papers. Both theory and applications will be equally emphasized. The scope of the Journal is broad and multi-disciplinary. It covers systems science, modelling and simulation, aero-space system analysis, vehicle control, communication, radar, optoelectronic detector, information acquisition and processing, target and environmental features, remote sensing,
