This paper investigates the current situation of Modern Educational Technology （MET） as program resources for college English teaching, exploring the effectiveness of the integration of MET and language teaching and...This paper investigates the current situation of Modern Educational Technology （MET） as program resources for college English teaching, exploring the effectiveness of the integration of MET and language teaching and learning. The case study in this paper illustrates that MET does benefit college English teaching but there are many problems of its application. Pedagogical implications are then provided to enhance the effective integration of MET and language teaching and learning： （1） it is wise for the teachers and learners to reconcile what is desirable with what is acceptable and possible in MET application; （2） teachers should optimize other existing resources to solve the problems caused by inequality and unavailability of MET; （3） teachers should have a clear conception of the relationship of MET and pedagogy to design and apply courseware appropriately; （4） students have beliefs in the benefits of MET, resulting in enhancing their individual language learning and efficiency.展开更多
This paper examined the computer-assisted TRP （Teaching Resource Program）, which is an intelligent writing program. Different from previous research, this study emphasized TRP＇s integrative and holistic functions o...This paper examined the computer-assisted TRP （Teaching Resource Program）, which is an intelligent writing program. Different from previous research, this study emphasized TRP＇s integrative and holistic functions of intelligent analysis, intelligent scoring, and intelligent comment on writing pieces. In what follows, this paper conducted a study of intelligent essay scoring system related to intelligent analysis, intelligent scoring, and intelligent comment of the writing pieces. Also, this paper provided a literature review of existing computer-assisted essay scoring systems and analyzed the advantages and disadvantages of them. Based on these findings in our research, we can conclude that the integrative and holistic computer-assisted TRP can effectively analyze, score, and comment essays, consequently enhancing the writing performance. Some useful implications from this study include that the computer-assisted TRP should be further integrated with writing learning and instruction展开更多
An energy effi cient resource allocation scheme in timesharing multiuser system with a hybrid energy harvesting transmitter is studied in this paper. Specially, the operation energy of system is supplied by constant e...An energy effi cient resource allocation scheme in timesharing multiuser system with a hybrid energy harvesting transmitter is studied in this paper. Specially, the operation energy of system is supplied by constant energy and energy harvesting, which harvests energy from external environment. Our goal is to maximize the energy effi ciency of timesharing multiuser systems by considering jointly allocation of transmission time and power control in an off-line manner. The original nonconvex objective function is transformed into convex optimization problem via the fractional programming approach. Then, we solve the convex problem by Lagrange dual decomposition method. Simulation results show that the proposed energy efficient resource allocation scheme has a better performance than the scheme which decomposes optimization problem into two parts(power allocation, time allocation) to solve iteratively.展开更多
文摘This paper investigates the current situation of Modern Educational Technology （MET） as program resources for college English teaching, exploring the effectiveness of the integration of MET and language teaching and learning. The case study in this paper illustrates that MET does benefit college English teaching but there are many problems of its application. Pedagogical implications are then provided to enhance the effective integration of MET and language teaching and learning： （1） it is wise for the teachers and learners to reconcile what is desirable with what is acceptable and possible in MET application; （2） teachers should optimize other existing resources to solve the problems caused by inequality and unavailability of MET; （3） teachers should have a clear conception of the relationship of MET and pedagogy to design and apply courseware appropriately; （4） students have beliefs in the benefits of MET, resulting in enhancing their individual language learning and efficiency.
文摘This paper examined the computer-assisted TRP （Teaching Resource Program）, which is an intelligent writing program. Different from previous research, this study emphasized TRP＇s integrative and holistic functions of intelligent analysis, intelligent scoring, and intelligent comment on writing pieces. In what follows, this paper conducted a study of intelligent essay scoring system related to intelligent analysis, intelligent scoring, and intelligent comment of the writing pieces. Also, this paper provided a literature review of existing computer-assisted essay scoring systems and analyzed the advantages and disadvantages of them. Based on these findings in our research, we can conclude that the integrative and holistic computer-assisted TRP can effectively analyze, score, and comment essays, consequently enhancing the writing performance. Some useful implications from this study include that the computer-assisted TRP should be further integrated with writing learning and instruction
基金supported in part by the National Natural Science Foundation of China(61471115)in part by the 2016 Science and Technology Joint Research and Innovation Foundation of Jiangsu Province(BY2016076-13)
文摘An energy effi cient resource allocation scheme in timesharing multiuser system with a hybrid energy harvesting transmitter is studied in this paper. Specially, the operation energy of system is supplied by constant energy and energy harvesting, which harvests energy from external environment. Our goal is to maximize the energy effi ciency of timesharing multiuser systems by considering jointly allocation of transmission time and power control in an off-line manner. The original nonconvex objective function is transformed into convex optimization problem via the fractional programming approach. Then, we solve the convex problem by Lagrange dual decomposition method. Simulation results show that the proposed energy efficient resource allocation scheme has a better performance than the scheme which decomposes optimization problem into two parts(power allocation, time allocation) to solve iteratively.
