A multimedia channel allocation scheme is proposed and studied in terms of the connection-level QoS.A new traffic model based on multidimensional Markov chain is developed considering the traffic characteristic of two...A multimedia channel allocation scheme is proposed and studied in terms of the connection-level QoS.A new traffic model based on multidimensional Markov chain is developed considering the traffic characteristic of two special periods of time.And the pre-emptive priority strategies are used to classify real-time services and non-real-time services.Real-time service is given higher priority for its allowance to pre-empt channels used by non-real-time service.Considering the mobility of persons in a day,which affects the mobile user's density,the simulation was conducted involving the two pre-emptive priority strategies.The result of some comparisons shows the feasibility of the proposed scheme.展开更多
Empowerment in learning has been a topic of discussion for the last two decades. Empowered learners are not only believed to achieve greater content learning but are also thought to better demonstrate competencies suc...Empowerment in learning has been a topic of discussion for the last two decades. Empowered learners are not only believed to achieve greater content learning but are also thought to better demonstrate competencies such as communication, teamwork, and problem solving. These competencies are becoming increasingly important as the role of professional accountants evolves and diversifies. This paper examines first-year accounting students＇ perceptions of empowerment based on two different learning styles： cooperative learning and traditional classroom instruction. A quantitative research design was used to survey 279 first-year business degree students studying at institutions in Libya. The results indicated that students who attended cooperative learning classes were more empowered in terms of the impact they believed they could have on class discussions and the meaningfulness they attributed to the tasks being discussed. In addition, students taught by cooperative learning methods recorded significantly higher end of term exam results than those students who received traditional classroom instruction. In conclusion, this research indicates that the teaching method used in classroom instruction may impact an accounting student＇s levels of empowerment and subsequently their critical thinking, problem solving, writing skills, and technical accounting competencies.展开更多
基金the National Natural Science Foundation of China (Grant No. 60372076)
文摘A multimedia channel allocation scheme is proposed and studied in terms of the connection-level QoS.A new traffic model based on multidimensional Markov chain is developed considering the traffic characteristic of two special periods of time.And the pre-emptive priority strategies are used to classify real-time services and non-real-time services.Real-time service is given higher priority for its allowance to pre-empt channels used by non-real-time service.Considering the mobility of persons in a day,which affects the mobile user's density,the simulation was conducted involving the two pre-emptive priority strategies.The result of some comparisons shows the feasibility of the proposed scheme.
文摘Empowerment in learning has been a topic of discussion for the last two decades. Empowered learners are not only believed to achieve greater content learning but are also thought to better demonstrate competencies such as communication, teamwork, and problem solving. These competencies are becoming increasingly important as the role of professional accountants evolves and diversifies. This paper examines first-year accounting students＇ perceptions of empowerment based on two different learning styles： cooperative learning and traditional classroom instruction. A quantitative research design was used to survey 279 first-year business degree students studying at institutions in Libya. The results indicated that students who attended cooperative learning classes were more empowered in terms of the impact they believed they could have on class discussions and the meaningfulness they attributed to the tasks being discussed. In addition, students taught by cooperative learning methods recorded significantly higher end of term exam results than those students who received traditional classroom instruction. In conclusion, this research indicates that the teaching method used in classroom instruction may impact an accounting student＇s levels of empowerment and subsequently their critical thinking, problem solving, writing skills, and technical accounting competencies.
