This paper addresses the problems faced in programmable logic controller(PLC)teaching in vocational colleges and proposes countermeasures to overcome these challenges.The study emphasizes the need for a deeper underst...This paper addresses the problems faced in programmable logic controller(PLC)teaching in vocational colleges and proposes countermeasures to overcome these challenges.The study emphasizes the need for a deeper understanding of fundamental concepts and the integration of practical application in PLC education.It suggests involving students in teacher-led projects to enhance their programming skills and problem-solving skills.Additionally,the paper highlights the importance of interactive learning and collaborative discussions to foster student engagement.Furthermore,it emphasizes the cultivation of innovation consciousness through participation in innovation competitions and projects.The implementation of these strategies has shown positive results in improving learning outcomes and preparing students for careers in automation and control.This research contributes to the development of effective teaching approaches in PLC education in vocational colleges.展开更多
By using a linear baroclinic model(LBM),this study investigates the different Rossby wave train(RWT)patterns associated with the Tibetan Plateau(TP)upper-atmospheric heat source(TPUHS)that is anomalously shallower and...By using a linear baroclinic model(LBM),this study investigates the different Rossby wave train(RWT)patterns associated with the Tibetan Plateau(TP)upper-atmospheric heat source(TPUHS)that is anomalously shallower and deeper in boreal summer.Observational results indicate the different RWT patterns between the developing and decaying periods of synoptic TPUHS events,when the anomalous TPUHS develops from a relatively shallower to a deeper TP heat source.Based on the different vertical heating profiles between these two periods in observation,this study forces the LBM with prescribed TPUHS profiles to mimic a shallower and deeper summer TP heat source.The results show that the atmospheric responses to a shallower and deeper TPUHS do exhibit different RWT patterns that largely resemble those in observation.Namely,corresponding RWT pattern to a shallower TPUHS stretches from the TP to the west coast of America,while that to a deeper TPUHS extends from the TP region to Alaska.展开更多
China and Ukraine are looking forward to deepening their cooperation on sectors including agriculture,infrastructure and energy to achieve mutual benefits and win-win outcomes,representatives from the two countries sa...China and Ukraine are looking forward to deepening their cooperation on sectors including agriculture,infrastructure and energy to achieve mutual benefits and win-win outcomes,representatives from the two countries said at an economic and trade forum on November8.展开更多
CHINA＇S state leaders have a universal image of serious faces, jet black hair and dark austere suits. But a recent cartoon video is changing this stere- otype.
The year 2016 was rich in events for China-Africa cooperation, with significant progress being made on key aspects at different levels. Major breakthroughs have been achieved for both sides dur- ing the year＇s major...The year 2016 was rich in events for China-Africa cooperation, with significant progress being made on key aspects at different levels. Major breakthroughs have been achieved for both sides dur- ing the year＇s major international events, including China＇s strong support for a plan on Africa＇s industrialization during the Hang- zhou G20 Summit.展开更多
基金The Project of China Vocational Education Association(ZJS2022YB024)。
文摘This paper addresses the problems faced in programmable logic controller(PLC)teaching in vocational colleges and proposes countermeasures to overcome these challenges.The study emphasizes the need for a deeper understanding of fundamental concepts and the integration of practical application in PLC education.It suggests involving students in teacher-led projects to enhance their programming skills and problem-solving skills.Additionally,the paper highlights the importance of interactive learning and collaborative discussions to foster student engagement.Furthermore,it emphasizes the cultivation of innovation consciousness through participation in innovation competitions and projects.The implementation of these strategies has shown positive results in improving learning outcomes and preparing students for careers in automation and control.This research contributes to the development of effective teaching approaches in PLC education in vocational colleges.
基金supported by the Strategic Priority Research Program of Chinese Academy of Sciences [grant number XDA17010105]the National Natural Science Foundation of China [grant numbers 91437105,41430533,and 41575041]the Key Research Program of Frontier Sciences [grant number QYZDY-SSW-DQC018]
文摘By using a linear baroclinic model(LBM),this study investigates the different Rossby wave train(RWT)patterns associated with the Tibetan Plateau(TP)upper-atmospheric heat source(TPUHS)that is anomalously shallower and deeper in boreal summer.Observational results indicate the different RWT patterns between the developing and decaying periods of synoptic TPUHS events,when the anomalous TPUHS develops from a relatively shallower to a deeper TP heat source.Based on the different vertical heating profiles between these two periods in observation,this study forces the LBM with prescribed TPUHS profiles to mimic a shallower and deeper summer TP heat source.The results show that the atmospheric responses to a shallower and deeper TPUHS do exhibit different RWT patterns that largely resemble those in observation.Namely,corresponding RWT pattern to a shallower TPUHS stretches from the TP to the west coast of America,while that to a deeper TPUHS extends from the TP region to Alaska.
文摘China and Ukraine are looking forward to deepening their cooperation on sectors including agriculture,infrastructure and energy to achieve mutual benefits and win-win outcomes,representatives from the two countries said at an economic and trade forum on November8.
文摘CHINA＇S state leaders have a universal image of serious faces, jet black hair and dark austere suits. But a recent cartoon video is changing this stere- otype.
文摘The year 2016 was rich in events for China-Africa cooperation, with significant progress being made on key aspects at different levels. Major breakthroughs have been achieved for both sides dur- ing the year＇s major international events, including China＇s strong support for a plan on Africa＇s industrialization during the Hang- zhou G20 Summit.
