A continue method based on relaxation is applied to solve the unit commitment problem (UCP). At first, the primal UCP is reformulated as a simple mixed integer quadratic programming (MIQP), and then the MIQP is solved by interior point method (IPM) and commercial software CPLEX. The first continues problem, UCP without integer constraints, can be solved by IPM to get the no integer solution. The second continues problem, an equivalent continues problem of UCP, can be solved starting from the solution obtained in first problem.

In wireless mesh network，the IEEE 802.11e EDCA protocol with fixed queue-access mechanism, which makes the QoS of voice and video traffic are not guaranteed in the high load traffic, and the channel utilization is low when the network load is under-loaded .Therefore, a dynamic adjustment access queue algorithm is proposed, in which nodes could adjust their access queue according to the network load state they measured. So the proposed algorithm could improve the channel utilization while at the same time meeting the QoS demand of high-priority traffic. The simulation result shows that, the algorithm has better performance than that of the IEEE 802.11e on the guarantee of the QoS and the channel utilization under various scenarios.

With the advances in technology and the quality of life, the family of the growing number and variety of terminals, a demand that automatic networking, shared resources, interconnected and mutual control and for users of home network is growing. This paper aims to design and implement an intelligent terminal with OpenWrt system based on Linux. The terminal is a gateway which has router management control functions, and load and run the compiled modules based on OpenWrt SDK in OpenWrt routing system. The intelligent terminal has completed a preliminary functional tests can be run in real network environments. The terminal will do as a prototype for future improvements and extensions of the home gateway.

In order to determine how to integrate Building Information Modeling (BIM) with current construction engineering education, this paper reports a suggested approach of integrating BIM in project scheduling and control in various courses within the current construction engineering curriculum. The methods used are to find (1) how, when, and how much BIM knowledge should be introduced, and ( 2) how a course framework should be set up. It was found possible to use an existing construction curriculum to fully teach and apply BIM tools. Although the proposed approach still needs a full assessment with more rounds of teaching practice and modification depending on feedback being obtained from students and the construction industry, this pilot study can provide some insight and generate further discussion to teaching similar contents in other construction engineering programs,

In wireless mesh network, handoff decision strategy chooses targets according to the detected signal strength, in which way too many mesh clients will be associated to routes with stronger signal strength, resulting in severe load imbalance and a huge waste of wireless resource. In this paper, we propose a new first-price sealed auction game handoff strategy, which takes into consideration the signal strength and network load when choosing handoff target. This strategy assures the fairness during the handoff process as well as the load balance in the wireless mesh network. The simulation results show that our proposed strategy achieves better performance in the aspects of user number and signal strength.