an irreversible stirling heat pump cycle using ferromagnetic materials as a cyclic working substance is established. the influences of finite-rate heat transfer, heat leak, regeneration time, regenerative lossand the internal irreversibility on the cyclic performance of magnetic heat pumps are taken into account. on the basis of the thermodynamic properties of ferromagnetic materials, the perfo...

Traffic splitting is a required functionality in networks, for example load balancing over multiple paths or among different servers. The capacities of the servers determine partition by which traffic should be split. A recent approach implements within ternary content addressable memory (TCAM), often available switches. It important to reduce amount allocated this task since TCAMs are power co...

This paper is about load-balancing packets across multiple paths inside a switch, or across a network. It is motivated by the recent interest in load-balanced switches. Load-balanced switches provide an appealing alternative to crossbars with centralized schedulers. A load-balanced switch has no scheduler, is particularly amenable to optics, and – most relevant here – guarantees 100% throughput...

Many load balancing algorithms balance the load according to a topology. Its choice can significantly influence the performance of the algorithm. We consider the two phase balancing model. The first phase calculates a balancing flow with respect to this topology by a diffusion scheme. Its time requirement depends on the maximum node degree and on the number of eigenvalues of the network. The se...

This paper presents a human-like control of an innovative biped robot. The robot presents a total of twelve degrees of freedom; each joint resemble the functionalities of the human articulation and is moved by tendons connected with an elastic actuator located in the robot’s pelvis. We implemented and tested an innovative control architecture (called elastic-reactive control) that permits to va...

This paper, presents a Direct Field-Oriented Control (DFOC) of doubly fed induction machine (DFIM) motor mode with a variable structure control based on a sliding mode control (SMC). Our aim is to make the speed and the flux control robust to parameter variations. The use of the nonlinear sliding mode method provides very good performance for motor operation and robustness of the control law de...

This paper addresses the problem of designing jerk limited timeoptimal control profiles for rest-to-rest maneuvers of flexible structures. The variation of the structure of the jerk profile as a function of the permissible jerk is studied. An optimal control problem is formulated which includes constraints to cancel the poles corresponding to the rigid body and flexible modes of the system and ...