With the rapid development of science and technology,new sensing technology has been used increasingly in mechatronics system,for the system of intelligent,automation and efficiency,provide strong support.Emerging sen...With the rapid development of science and technology,new sensing technology has been used increasingly in mechatronics system,for the system of intelligent,automation and efficiency,provide strong support.Emerging sensor technology in electromechanical integration system of innovative applications not only promote the system of intelligent upgrade,also for its wide application in the field of multiple provides a strong support,and along with the advance of technology and application scenario development,emerging sensor technology in electromechanical integration system to play a more important role.In this regard,this paper first expounds the overview of emerging sensing technology,then analyzes the innovation and integration of emerging sensing technology and mechatronics system,and finally further explores the practical application of emerging sensing technology in mechatronics system,in order to provide some reference for relevant researchers.展开更多
The term competence quality was first put forward by McClelland, a psychology professor at Harvard University. He found that those who have excellent knowledge and skills and excellent background do not necessarily ge...The term competence quality was first put forward by McClelland, a psychology professor at Harvard University. He found that those who have excellent knowledge and skills and excellent background do not necessarily get high performance by studying a large number of cases of employees selected by enterprises. He calls those personal conditions and behavioral characteristics that can make substantial contributions to improving organizational efficiency and promoting personal career success, that is, those that can really affect work performance, competence quality. He believes that competence refers to any individual characteristics that can be reliably measured and can distinguish high-performance employees from general performance employees, such as traits, motivation, self-concept, social roles, attitudes, values, knowledge and skills. In other words, competency refers to the knowledge, skills and behaviors needed to achieve high performance in a specific job position, including: peoples comprehensive characteristics, highly related to job performance, reflected in behavior, sustainable and predictable future behavior. In the process of human resource management, public institutions should innovate the competency model, so as to ensure the level of human resource management.展开更多
With the rapid development of social economy, the number of civil engineering construction projects is increasing. While the number of construction projects is increasing, we need to pay attention to the problem of pr...With the rapid development of social economy, the number of civil engineering construction projects is increasing. While the number of construction projects is increasing, we need to pay attention to the problem of project quality. In the construction of civil engineering projects, the breakthrough and innovation of construction technology can not only bring more economic benefits to construction enterprises, but also effectively ensure the construction quality of engineering projects. Therefore, based on the current situation of construction technology of civil engineering, this paper analyzes the technical points in detail and puts forward corresponding construction opinions, so as to promote the sustainable development strategy of civil engineering construction industry and provide guarantee for the stable development of social economy.展开更多
The software technology field is facing new talent demands brought by the Information Technology Application Innovation(ITAI)industry.This paper takes Shanwei Institute of Technology as an example to deeply explore th...The software technology field is facing new talent demands brought by the Information Technology Application Innovation(ITAI)industry.This paper takes Shanwei Institute of Technology as an example to deeply explore the construction of a school-enterprise community education model driven by the ITAI industry.It establishes the Kirin Workshop training base to facilitate talent cultivation,integrates the ITAI Application Adaptation Center to enhance technical capabilities,cooperates with Liqi Technology to establish an industrial college for government talent training,adjusts the professional curriculum system,and arranges for students to participate in ITAI vocational skills competitions.The school-enterprise collaborative cultivation mechanism meets the talent needs of the ITAI field,with effective practical results.This paper also points out the shortcomings of the school-enterprise collaborative education model in the ITAI industry and provides optimization methods to explore new paths for industry-education integration and serve the development of regional and national ITAI industries^([1]).展开更多
The best stop to shop for innovation The Taipei Innovative Textile Application Show (TITAS 2010),organized by the Taiwan Textile Federation (TTF) will be held at the Taipei World Trade Center on October 13 through 15,...The best stop to shop for innovation The Taipei Innovative Textile Application Show (TITAS 2010),organized by the Taiwan Textile Federation (TTF) will be held at the Taipei World Trade Center on October 13 through 15, 2010. More than 300 exhibitors with 500 booths from all over the world are expected to be part of the annual gathering.展开更多
Under the current background of an information society,the digital transformation of enterprises has become a necessary means to enhance the competitiveness of enterprises.This article is based on the industrial Inter...Under the current background of an information society,the digital transformation of enterprises has become a necessary means to enhance the competitiveness of enterprises.This article is based on the industrial Internet platform,the digital planning and architecture of enterprises research.First,we analyze the current challenges of digital transformation and the development opportunities brought by the industrial Internet.Then,we propose a digital planning method based on the industrial Internet platform,which takes the full connectivity of people,machine and things and intelligent decision making as the core,takes data collection,processing,analysis and application as the main line,and finally forms the top-level design of the digital transformation of enterprises.At the same time,we also built an industrial Internet platform architecture model,including the previous end perception layer,network transmission layer,platform service layer,and application innovation layer for four levels,to support enterprises in innovative applications and decision support under the industrial Internet environment.Research shows that this kind of enterprise digital planning and architecture based on an industrial Internet platform can effectively promote enterprises to achieve business model innovation,system innovation,and strengthen the flexibility and agility of enterprises to respond to market changes.The results of this research not only have important theoretical and practical significance for guiding enterprises to carry out digital planning and build an industrial Internet platform,but also provide useful reference for relevant policy formulation.展开更多
Experimental research center and research oriented model, is to test basic skills and the application of technology as the main line,to cultivate students’ comprehensive experimental skills, to add professional and t...Experimental research center and research oriented model, is to test basic skills and the application of technology as the main line,to cultivate students’ comprehensive experimental skills, to add professional and technical capacity and integrated design experiment teachingpractice session, and introduce scientifi c research and experimental teaching, training students to scientifi c thinking to teaching model whichanalyze and solve problems. This mode has positive and stimulating effect on comprehensive quality and innovative ability for students usingmodern science and technology to solve practical engineering problems .this paper discusses the research status and the innovative application ofmaterials science experiments and teaching professional research-oriented, and proposes an effective way to improve this kind of new model.展开更多
The reform and innovation of the personnel management system in government organs and institutions is to eliminate the shortcomings on the basis of the past human resources management, find the best human resources ma...The reform and innovation of the personnel management system in government organs and institutions is to eliminate the shortcomings on the basis of the past human resources management, find the best human resources management plan and create a positive personnel management system. Among the current personnel management systems in our country, the appointment system is the one chosen by many institutions. The appointment system can achieve the overall goal of human resources management. The influence and effectiveness of the appointment system are crucial to promote the sustainable development trend of government agencies and institutions. This paper analyzes the specific contents and functions of the reform and innovation of the appointment system and personnel management system in government institutions, and discusses the characteristics and practical significance of the reform and innovation of the appointment system in government institutions. The countermeasures for the reform and innovation of the personnel management system of the appointment system have been deeply and scientifically studied, which has certain practical value and promotes the long-term development of government organs and institutions.展开更多
In the field of design, color element is one of the indispensable design elements, color element is widely used in various types of design. Designers can innovate the application methods of color elements in architect...In the field of design, color element is one of the indispensable design elements, color element is widely used in various types of design. Designers can innovate the application methods of color elements in architectural design, cleverly collocation of color elements, can create a suitable atmosphere, improve the artistic sense of the work, fit the demands of customers, improve customer satisfaction, and then improve the comprehensive value of the work, such as artistic value, aesthetic value and use value. Based on this, this paper will deeply explore the application principle, application value and innovative application measures of color elements based on architectural design, in order to provide some theoretical reference for related workers.展开更多
With the rapid development of urbanization, the competition in construction industry is becoming increasingly fierce. As an important part of construction project management, project cost plays an important role in ef...With the rapid development of urbanization, the competition in construction industry is becoming increasingly fierce. As an important part of construction project management, project cost plays an important role in effectively controlling project cost. BIM Technology is based on three-dimensional model information, which can effectively improve the scientific of construction cost management, control design changes and reduce costs. It has a certain reference significance for optimizing and improving the informatization management level of construction cost in China. Next, the article discusses the application of BIM Technology in the innovation of project cost.展开更多
In the process of China's rapid economic development, enterprises must change the previous concept of development and realize that talents are the decisive factors in the market competition. In the era of knowledg...In the process of China's rapid economic development, enterprises must change the previous concept of development and realize that talents are the decisive factors in the market competition. In the era of knowledge economy, enterprises must pay attention to the introduction and training of skilled talents. However, at present, enterprises do not pay enough attention to personnel training, and there are still many disadvantages. First of all, due to unreasonable personnel training and evaluation methods, the cost of personnel training rises, but good results cannot be obtained, which seriously affects the operation of enterprises. In the new era, we must combine modern management methods to improve the emphasis on the training of skilled personnel, and on the basis of combining with China's economic environment, give solutions to personnel training evaluation and training methods, and use scientific methods to optimize the effect of personnel training, so that skilled personnel can have rich professional knowledge and form strong practical ability under the professional training mode.展开更多
Based on the actual situation of personnel training and evaluation in state-owned enterprises, it can be found that there are still some deficiencies in the current personnel training mechanism and evaluation mechanis...Based on the actual situation of personnel training and evaluation in state-owned enterprises, it can be found that there are still some deficiencies in the current personnel training mechanism and evaluation mechanism, which can be embodied as: the lack of effective personnel training and personnel resources utilization planning, and the lack of efficient personnel evaluation incentive mechanism. In the face of these problems, if we want to improve the comprehensive development ability of state-owned enterprises with human resources, we suggest that we should start from the perspective of personnel organization system, skilled personnel incentive mechanism and corporate culture construction, comprehensively optimize the skilled personnel training system, refine the skilled personnel incentive mechanism, fully mobilize the working enthusiasm of skilled personnel, give full play to the working value of skilled personnel, enable enterprise personnel to put their professional skills into the development of state-owned enterprises, realize the coordinated development of skilled personnel and enterprises, and provide guarantee for the healthy development of state-owned enterprises in modern society.展开更多
This paper explores the application of artificial intelligence technology,particularly the chatbot ChatGPT,in college English listening and speaking instruction,as well as its impact on educational models.The article ...This paper explores the application of artificial intelligence technology,particularly the chatbot ChatGPT,in college English listening and speaking instruction,as well as its impact on educational models.The article first analyzes the current state of college English listening and speaking education,highlighting issues such as uneven distribution of educational resources,insufficient teaching conditions,and outdated teaching methods.It then defines ChatGPT and discusses its characteristics,explaining the necessity of integrating ChatGPT into college English listening and speaking classes from the perspectives of teachers,students,and pedagogy.Finally,the paper proposes innovative application methods for ChatGPT in college English listening and speaking instruction,including enhancing speaking and listening teaching,providing personalized feedback,and promoting students’autonomous learning abilities.The introduction of ChatGPT not only enriches teaching resources and enhances the authenticity and interactivity of learning but also drives educational models towards a more flexible and efficient direction.展开更多
Traditional Chinese Medicine(TCM)has been used in prevention and treatment of disease in clinical practice for thousands of years,with an indispensable role of multiple ingredients.Thus,a rapid and effective chemical ...Traditional Chinese Medicine(TCM)has been used in prevention and treatment of disease in clinical practice for thousands of years,with an indispensable role of multiple ingredients.Thus,a rapid and effective chemical ingredients analysis was of necessary to be established for the evaluation of the holistic quality of TCM.As could afford the data with high resolution and high sensitivity,展开更多
The world record device efficiency of single-junction solar cells based on organic–inorganic hybrid perovskites has reached 25.5%.Further improvement in device power conversion efficiency(PCE)can be achieved by eithe...The world record device efficiency of single-junction solar cells based on organic–inorganic hybrid perovskites has reached 25.5%.Further improvement in device power conversion efficiency(PCE)can be achieved by either optimizing perovskite films or designing novel device structures such as perovskite/Si tandem solar cells.With the marriage of perovskite and Si solar cells,a tandem device configuration is able to achieve a PCE exceeding the Shockley–Queisser limit of single-junction solar cells by enhancing the usage of solar spectrum.After several years of development,the highest PCE of the perovskite/Si tandem cell has reached 29.5%,which is higher than that of perovskite-and Si-based singlejunction cells.Here,in this review,we will(1)first discuss the device structure and fundamental working principle of both two-terminal(2T)and four-terminal(4T)perovskite/Si tandem solar cells;(2)second,provide a brief overview of the advances of perovskite/Si tandem solar cells regarding the development of interconnection layer,perovskite active layer,tandem device structure,and lightmanagement strategies;(3)third,discuss the challenges and opportunities for further developing perovskite/Si tandem solar cells.This review article,on the one hand,provides a comprehensive understanding to readers on the development of perovskite/Si tandems.On the other hand,it proposes various novel applications that may bring such tandems into the market in a near future.展开更多
Over the past years the International Global Navigation Satellite System(GNSS)Monitoring and Assessment System(iGMAS)Wuhan Innovation Application Center(IAC)dedicated to exploring the potential of multi-GNSS signals a...Over the past years the International Global Navigation Satellite System(GNSS)Monitoring and Assessment System(iGMAS)Wuhan Innovation Application Center(IAC)dedicated to exploring the potential of multi-GNSS signals and providing a set of products and services.This contribution summarizes the strategies,achievements,and innovations of multi-GNSS orbit/clock/bias determination in iGMAS Wuhan IAC.Both the precise products and Real-Time Services(RTS)are evaluated and discussed.The precise orbit and clock products have comparable accuracy with the precise products of the International GNSS Service(IGS)and iGMAS.The multi-frequency code and phase bias products for Global Positioning System(GPS),BeiDou Navigation Satellite System(BDS),Galileo navigation satellite system(Galileo),and GLObal NAvigation Satellite System(GLONASS)are provided to support multi-GNSS and multi-frequency Precise Point Positioning(PPP)Ambiguity Resolution(AR).Compared with dual-frequency PPP AR,the time to first fix of triple-frequency solution is improved by 30%.For RTS,the proposed orbit prediction strategy improves the three dimensional accuracy of predicted orbit by 1 cm.The multi-thread strategy and high-performance matrix library are employed to accelerate the real-time orbit and clock determination.The results with respect to the IGS precise products show the high accuracy of RTS orbits and clocks,4–9 cm and 0.1–0.2 ns,respectively.Using real-time satellite corrections,real-time PPP solutions achieve satisfactory performance with horizontal and vertical positioning errors within 2 and 4 cm,respectively,and convergence time of 16.97 min.展开更多
Integer Ambiguity Resolution(IAR)can significantly improve the accuracy of GNSS Precise Orbit Determination(POD).Traditionally,the IAR in POD is achieved at the Double Differenced(DD)level.In this contribution,we deve...Integer Ambiguity Resolution(IAR)can significantly improve the accuracy of GNSS Precise Orbit Determination(POD).Traditionally,the IAR in POD is achieved at the Double Differenced(DD)level.In this contribution,we develop an Un-Differenced(UD)IAR method for Global Positioning System(GPS)+BeiDou Navigation Satellite System(BDS)+Galileo navigation satellite system(Galileo)+Global'naya Navigatsionnaya Sputnikovaya Sistema(GLONASS)quad-system POD by calibrating UD ambiguities in the raw carrier phase and generating the so-called carrier range.Based on this method,we generate the UD ambiguity-fixed orbit and clock products for the Wuhan Innovation Application Center(IAC)of the International GNSS Monitoring and Assessment System(iGMAS).One-year observations in 2020 from 150 stations are employed to investigate performance of orbit and clock products.Notably,the UD Ambiguity Resolution(AR)yields more resolved integer ambiguities than the traditional DD AR,scaling up to 9%,attributable to its avoidance of station baseline formation.Benefiting from the removal of ambiguity parameters,the computational efficiency of parameter estimation undergoes a substantial 70%improvement.Compared with the float solution,the orbit consistencies of UD AR solution achieve the accuracy of 1.9,5.2,2.8,2.1,and 2.7 cm for GPS,BeiDou-2 Navigation Satellite System(BDS-2),BeiDou-3 Navigation Satellite System(BDS-3),Galileo,and GLONASS satellites respectively,reflecting enhancements of 40%,24%,54%,34%,and 42%.Moreover,the standard deviations of Satellite Laser Ranging(SLR)residuals are spanning 2.5–3.5 cm,underscoring a comparable accuracy to the DD AR solution,with discrepancies below 5%.A notable advantage of UD AR lies in its capability to produce the Integer Recovered Clock(IRC),facilitating Precise Point Positioning(PPP)AR without requiring additional Uncalibrated Phase Delay(UPD)products.To assess the performance of quad-system kinematic PPP based on IRC,a network comprising 120 stations is utilized.In comparison to the float solution,the IRC-based PPP AR accelerates convergence time by 31%and enhance positioning accuracy in the east component by 54%.展开更多
文摘With the rapid development of science and technology,new sensing technology has been used increasingly in mechatronics system,for the system of intelligent,automation and efficiency,provide strong support.Emerging sensor technology in electromechanical integration system of innovative applications not only promote the system of intelligent upgrade,also for its wide application in the field of multiple provides a strong support,and along with the advance of technology and application scenario development,emerging sensor technology in electromechanical integration system to play a more important role.In this regard,this paper first expounds the overview of emerging sensing technology,then analyzes the innovation and integration of emerging sensing technology and mechatronics system,and finally further explores the practical application of emerging sensing technology in mechatronics system,in order to provide some reference for relevant researchers.
文摘The term competence quality was first put forward by McClelland, a psychology professor at Harvard University. He found that those who have excellent knowledge and skills and excellent background do not necessarily get high performance by studying a large number of cases of employees selected by enterprises. He calls those personal conditions and behavioral characteristics that can make substantial contributions to improving organizational efficiency and promoting personal career success, that is, those that can really affect work performance, competence quality. He believes that competence refers to any individual characteristics that can be reliably measured and can distinguish high-performance employees from general performance employees, such as traits, motivation, self-concept, social roles, attitudes, values, knowledge and skills. In other words, competency refers to the knowledge, skills and behaviors needed to achieve high performance in a specific job position, including: peoples comprehensive characteristics, highly related to job performance, reflected in behavior, sustainable and predictable future behavior. In the process of human resource management, public institutions should innovate the competency model, so as to ensure the level of human resource management.
文摘With the rapid development of social economy, the number of civil engineering construction projects is increasing. While the number of construction projects is increasing, we need to pay attention to the problem of project quality. In the construction of civil engineering projects, the breakthrough and innovation of construction technology can not only bring more economic benefits to construction enterprises, but also effectively ensure the construction quality of engineering projects. Therefore, based on the current situation of construction technology of civil engineering, this paper analyzes the technical points in detail and puts forward corresponding construction opinions, so as to promote the sustainable development strategy of civil engineering construction industry and provide guarantee for the stable development of social economy.
基金supported by the Foundation of Shanwei Institute of Technology(swjy23-008).
文摘The software technology field is facing new talent demands brought by the Information Technology Application Innovation(ITAI)industry.This paper takes Shanwei Institute of Technology as an example to deeply explore the construction of a school-enterprise community education model driven by the ITAI industry.It establishes the Kirin Workshop training base to facilitate talent cultivation,integrates the ITAI Application Adaptation Center to enhance technical capabilities,cooperates with Liqi Technology to establish an industrial college for government talent training,adjusts the professional curriculum system,and arranges for students to participate in ITAI vocational skills competitions.The school-enterprise collaborative cultivation mechanism meets the talent needs of the ITAI field,with effective practical results.This paper also points out the shortcomings of the school-enterprise collaborative education model in the ITAI industry and provides optimization methods to explore new paths for industry-education integration and serve the development of regional and national ITAI industries^([1]).
文摘The best stop to shop for innovation The Taipei Innovative Textile Application Show (TITAS 2010),organized by the Taiwan Textile Federation (TTF) will be held at the Taipei World Trade Center on October 13 through 15, 2010. More than 300 exhibitors with 500 booths from all over the world are expected to be part of the annual gathering.
文摘Under the current background of an information society,the digital transformation of enterprises has become a necessary means to enhance the competitiveness of enterprises.This article is based on the industrial Internet platform,the digital planning and architecture of enterprises research.First,we analyze the current challenges of digital transformation and the development opportunities brought by the industrial Internet.Then,we propose a digital planning method based on the industrial Internet platform,which takes the full connectivity of people,machine and things and intelligent decision making as the core,takes data collection,processing,analysis and application as the main line,and finally forms the top-level design of the digital transformation of enterprises.At the same time,we also built an industrial Internet platform architecture model,including the previous end perception layer,network transmission layer,platform service layer,and application innovation layer for four levels,to support enterprises in innovative applications and decision support under the industrial Internet environment.Research shows that this kind of enterprise digital planning and architecture based on an industrial Internet platform can effectively promote enterprises to achieve business model innovation,system innovation,and strengthen the flexibility and agility of enterprises to respond to market changes.The results of this research not only have important theoretical and practical significance for guiding enterprises to carry out digital planning and build an industrial Internet platform,but also provide useful reference for relevant policy formulation.
文摘Experimental research center and research oriented model, is to test basic skills and the application of technology as the main line,to cultivate students’ comprehensive experimental skills, to add professional and technical capacity and integrated design experiment teachingpractice session, and introduce scientifi c research and experimental teaching, training students to scientifi c thinking to teaching model whichanalyze and solve problems. This mode has positive and stimulating effect on comprehensive quality and innovative ability for students usingmodern science and technology to solve practical engineering problems .this paper discusses the research status and the innovative application ofmaterials science experiments and teaching professional research-oriented, and proposes an effective way to improve this kind of new model.
文摘The reform and innovation of the personnel management system in government organs and institutions is to eliminate the shortcomings on the basis of the past human resources management, find the best human resources management plan and create a positive personnel management system. Among the current personnel management systems in our country, the appointment system is the one chosen by many institutions. The appointment system can achieve the overall goal of human resources management. The influence and effectiveness of the appointment system are crucial to promote the sustainable development trend of government agencies and institutions. This paper analyzes the specific contents and functions of the reform and innovation of the appointment system and personnel management system in government institutions, and discusses the characteristics and practical significance of the reform and innovation of the appointment system in government institutions. The countermeasures for the reform and innovation of the personnel management system of the appointment system have been deeply and scientifically studied, which has certain practical value and promotes the long-term development of government organs and institutions.
文摘In the field of design, color element is one of the indispensable design elements, color element is widely used in various types of design. Designers can innovate the application methods of color elements in architectural design, cleverly collocation of color elements, can create a suitable atmosphere, improve the artistic sense of the work, fit the demands of customers, improve customer satisfaction, and then improve the comprehensive value of the work, such as artistic value, aesthetic value and use value. Based on this, this paper will deeply explore the application principle, application value and innovative application measures of color elements based on architectural design, in order to provide some theoretical reference for related workers.
文摘With the rapid development of urbanization, the competition in construction industry is becoming increasingly fierce. As an important part of construction project management, project cost plays an important role in effectively controlling project cost. BIM Technology is based on three-dimensional model information, which can effectively improve the scientific of construction cost management, control design changes and reduce costs. It has a certain reference significance for optimizing and improving the informatization management level of construction cost in China. Next, the article discusses the application of BIM Technology in the innovation of project cost.
文摘In the process of China's rapid economic development, enterprises must change the previous concept of development and realize that talents are the decisive factors in the market competition. In the era of knowledge economy, enterprises must pay attention to the introduction and training of skilled talents. However, at present, enterprises do not pay enough attention to personnel training, and there are still many disadvantages. First of all, due to unreasonable personnel training and evaluation methods, the cost of personnel training rises, but good results cannot be obtained, which seriously affects the operation of enterprises. In the new era, we must combine modern management methods to improve the emphasis on the training of skilled personnel, and on the basis of combining with China's economic environment, give solutions to personnel training evaluation and training methods, and use scientific methods to optimize the effect of personnel training, so that skilled personnel can have rich professional knowledge and form strong practical ability under the professional training mode.
文摘Based on the actual situation of personnel training and evaluation in state-owned enterprises, it can be found that there are still some deficiencies in the current personnel training mechanism and evaluation mechanism, which can be embodied as: the lack of effective personnel training and personnel resources utilization planning, and the lack of efficient personnel evaluation incentive mechanism. In the face of these problems, if we want to improve the comprehensive development ability of state-owned enterprises with human resources, we suggest that we should start from the perspective of personnel organization system, skilled personnel incentive mechanism and corporate culture construction, comprehensively optimize the skilled personnel training system, refine the skilled personnel incentive mechanism, fully mobilize the working enthusiasm of skilled personnel, give full play to the working value of skilled personnel, enable enterprise personnel to put their professional skills into the development of state-owned enterprises, realize the coordinated development of skilled personnel and enterprises, and provide guarantee for the healthy development of state-owned enterprises in modern society.
基金Supported by the 2024 Teaching Reform Project of Guangxi University of Chinese Medicine(2024B028).
文摘This paper explores the application of artificial intelligence technology,particularly the chatbot ChatGPT,in college English listening and speaking instruction,as well as its impact on educational models.The article first analyzes the current state of college English listening and speaking education,highlighting issues such as uneven distribution of educational resources,insufficient teaching conditions,and outdated teaching methods.It then defines ChatGPT and discusses its characteristics,explaining the necessity of integrating ChatGPT into college English listening and speaking classes from the perspectives of teachers,students,and pedagogy.Finally,the paper proposes innovative application methods for ChatGPT in college English listening and speaking instruction,including enhancing speaking and listening teaching,providing personalized feedback,and promoting students’autonomous learning abilities.The introduction of ChatGPT not only enriches teaching resources and enhances the authenticity and interactivity of learning but also drives educational models towards a more flexible and efficient direction.
文摘Traditional Chinese Medicine(TCM)has been used in prevention and treatment of disease in clinical practice for thousands of years,with an indispensable role of multiple ingredients.Thus,a rapid and effective chemical ingredients analysis was of necessary to be established for the evaluation of the holistic quality of TCM.As could afford the data with high resolution and high sensitivity,
基金National Key Research and Development Program of China,Grant/Award Number:2017YFA0206600National Natural Science Foundation of China,Grant/Award Numbers:51773045,21772030,51922032,21961160720。
文摘The world record device efficiency of single-junction solar cells based on organic–inorganic hybrid perovskites has reached 25.5%.Further improvement in device power conversion efficiency(PCE)can be achieved by either optimizing perovskite films or designing novel device structures such as perovskite/Si tandem solar cells.With the marriage of perovskite and Si solar cells,a tandem device configuration is able to achieve a PCE exceeding the Shockley–Queisser limit of single-junction solar cells by enhancing the usage of solar spectrum.After several years of development,the highest PCE of the perovskite/Si tandem cell has reached 29.5%,which is higher than that of perovskite-and Si-based singlejunction cells.Here,in this review,we will(1)first discuss the device structure and fundamental working principle of both two-terminal(2T)and four-terminal(4T)perovskite/Si tandem solar cells;(2)second,provide a brief overview of the advances of perovskite/Si tandem solar cells regarding the development of interconnection layer,perovskite active layer,tandem device structure,and lightmanagement strategies;(3)third,discuss the challenges and opportunities for further developing perovskite/Si tandem solar cells.This review article,on the one hand,provides a comprehensive understanding to readers on the development of perovskite/Si tandems.On the other hand,it proposes various novel applications that may bring such tandems into the market in a near future.
基金National Natural Science Foundation of China(No.41974027)National Key Research and Development Program of China(2021YFB2501102)Sino-German mobility programme(Grant No.M-0054).
文摘Over the past years the International Global Navigation Satellite System(GNSS)Monitoring and Assessment System(iGMAS)Wuhan Innovation Application Center(IAC)dedicated to exploring the potential of multi-GNSS signals and providing a set of products and services.This contribution summarizes the strategies,achievements,and innovations of multi-GNSS orbit/clock/bias determination in iGMAS Wuhan IAC.Both the precise products and Real-Time Services(RTS)are evaluated and discussed.The precise orbit and clock products have comparable accuracy with the precise products of the International GNSS Service(IGS)and iGMAS.The multi-frequency code and phase bias products for Global Positioning System(GPS),BeiDou Navigation Satellite System(BDS),Galileo navigation satellite system(Galileo),and GLObal NAvigation Satellite System(GLONASS)are provided to support multi-GNSS and multi-frequency Precise Point Positioning(PPP)Ambiguity Resolution(AR).Compared with dual-frequency PPP AR,the time to first fix of triple-frequency solution is improved by 30%.For RTS,the proposed orbit prediction strategy improves the three dimensional accuracy of predicted orbit by 1 cm.The multi-thread strategy and high-performance matrix library are employed to accelerate the real-time orbit and clock determination.The results with respect to the IGS precise products show the high accuracy of RTS orbits and clocks,4–9 cm and 0.1–0.2 ns,respectively.Using real-time satellite corrections,real-time PPP solutions achieve satisfactory performance with horizontal and vertical positioning errors within 2 and 4 cm,respectively,and convergence time of 16.97 min.
基金supported by the National Natural Science Foundation of China(No.42204017,No.41974027,No.42304019)the special fund of Hubei Luojia Laboratory(220100006)+1 种基金the Sino-German mobility program(Grant No.M-0054),China Postdoctoral Science Foundation(2023M732687)the Fundamental Research Funds for the Central Universities(2042022kf1001).
文摘Integer Ambiguity Resolution(IAR)can significantly improve the accuracy of GNSS Precise Orbit Determination(POD).Traditionally,the IAR in POD is achieved at the Double Differenced(DD)level.In this contribution,we develop an Un-Differenced(UD)IAR method for Global Positioning System(GPS)+BeiDou Navigation Satellite System(BDS)+Galileo navigation satellite system(Galileo)+Global'naya Navigatsionnaya Sputnikovaya Sistema(GLONASS)quad-system POD by calibrating UD ambiguities in the raw carrier phase and generating the so-called carrier range.Based on this method,we generate the UD ambiguity-fixed orbit and clock products for the Wuhan Innovation Application Center(IAC)of the International GNSS Monitoring and Assessment System(iGMAS).One-year observations in 2020 from 150 stations are employed to investigate performance of orbit and clock products.Notably,the UD Ambiguity Resolution(AR)yields more resolved integer ambiguities than the traditional DD AR,scaling up to 9%,attributable to its avoidance of station baseline formation.Benefiting from the removal of ambiguity parameters,the computational efficiency of parameter estimation undergoes a substantial 70%improvement.Compared with the float solution,the orbit consistencies of UD AR solution achieve the accuracy of 1.9,5.2,2.8,2.1,and 2.7 cm for GPS,BeiDou-2 Navigation Satellite System(BDS-2),BeiDou-3 Navigation Satellite System(BDS-3),Galileo,and GLONASS satellites respectively,reflecting enhancements of 40%,24%,54%,34%,and 42%.Moreover,the standard deviations of Satellite Laser Ranging(SLR)residuals are spanning 2.5–3.5 cm,underscoring a comparable accuracy to the DD AR solution,with discrepancies below 5%.A notable advantage of UD AR lies in its capability to produce the Integer Recovered Clock(IRC),facilitating Precise Point Positioning(PPP)AR without requiring additional Uncalibrated Phase Delay(UPD)products.To assess the performance of quad-system kinematic PPP based on IRC,a network comprising 120 stations is utilized.In comparison to the float solution,the IRC-based PPP AR accelerates convergence time by 31%and enhance positioning accuracy in the east component by 54%.
