In this paper, we propose a novel integrated traffic control scheme, called ITCS, which seamlessly supports connection-oriented and connectionless services for a previously proposed experimental optical packet-switche...
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ISBN:
(纸本)9781612842332
In this paper, we propose a novel integrated traffic control scheme, called ITCS, which seamlessly supports connection-oriented and connectionless services for a previously proposed experimental optical packet-switched metro WDM network, HOPSMAN. ITCS aims to efficiently satisfy the diverse quality-of-service (QoS) requirements while retaining maximal network throughput. Through a flexible reservation scheme, ITCS avoids the receiver-contention problem inhered in current WDM network, achieving high statistical multiplexing gain for isochronous traffic. By employing constant mean rate reservation and with an effective distributed call admission control (CAC), ITCS establishes isochronous traffic connections only within a single ring time under normal loads and achieves exceedingly low VBR delay. Furthermore, we develop a novel approximation to acquire the accurate results of the expected connection setup delay by means of an M/G/m queueing analysis. Extensive simulation results show that the mean setup queueing time is in profound agreement with the analytic results, and that ITCS accommodates maximal isochronous traffic with remarkable QoS performance and still retaining exceptional aggregate system throughput.
A significant portion of aircraft accidents occur during takeoff and landing, and leads to the most serious accidents. ASDE (Airport Surface Detection Equipment) is conducting research to ensure the safety of passenge...
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In this paper, we consider the robust output feedback problem for constrained linear systems. A novel interpolation based control scheme is introduced, which guarantees feasibility and robust asymptotically stable clo...
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Some people may have trouble communicating with others because of motor and speech difficulties brought on by accidents, strokes, or diseases. Paralyzed people often struggle to communicate their demands, which can ma...
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Most machine learning (ML) algorithms reported for ultrasonic guided wave structural health monitoring (GW-SHM) applications, particularly for damage assessment in the presence of time-varying environmental and operat...
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With the development of high-quality economy, modern people are facing various health challenges while their living standards are improving, the risk of disease is rising, and the need for health is urgent and growing...
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This paper deals with the problem of estimating the states in nonlinear systems with parameters that are not precisely known through the implementation of proportional nonlinear high gain observers with additional int...
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ISBN:
(纸本)9781457710117
This paper deals with the problem of estimating the states in nonlinear systems with parameters that are not precisely known through the implementation of proportional nonlinear high gain observers with additional integral action. It is known that non-linear observers (NL-P) show excellent results in the estimation of state variables but these depend heavily on precise knowledge of model parameters, this is not always possible because in many process the parameters may suffer sudden shifts as in the biological processes, which in turn will certainly broke the asymptotical convergence observer property. We propose the addition of a integral action in order to deal with possible change of parameters. In this work it is showed that the so called nonlinear integral high gain observers (NL-PI) are able to cancel the dynamical disturbances due to parameter changes. We studied the substrate estimation in a wastewater treatment bioreactor. The simulation study was carried on the basis of experimental data of a batch culture of Spirulina maxima for the pollutant removal present in the culture media.
This review paper provides an in-depth comprehensive overview of the application of Field-Programmable Gate Arrays(FGPAs) in battery energy storage systems (BESS) using solar cells. The integration of solar energy and...
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A passivity-based model-free second order sliding mode controller is proposed for redundant manipulators under holonomic constraints. The closed-loop system enforces exponential tracking on the exerted contact force a...
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A passivity-based model-free second order sliding mode controller is proposed for redundant manipulators under holonomic constraints. The closed-loop system enforces exponential tracking on the exerted contact force and the end-effector cartesian position trajectories as the primary task, while the controller reconfigures dynamically the whole kinematic chain in order to satisfy a secondary task through the redundant constrained degrees of freedom. To achieve this, the orthogonalization principle and the proposed redundancy resolution technique, are together synthesized for redundant constrained robots. This way, two pairs of orthogonal subspaces arises, the joint velocity and contact force orthogonal pair, and the end-effector velocity and null space orthogonal pair. Therefore, independent control on the end-effector cartesian position and the exerted contact force can be achieved, while proper control of the null space variables will allow to simultaneously carry out a secondary task, by locally optimizing a given cost function. Simulation results of the 7 degrees of freedom PA10 Mitsubishi robot manipulator performing tracking tasks on the cartesian, force, and null space (redundancy) subspaces are presented.
The proceedings contain 30 papers. The topics discussed include: development of critical and creative thinking skills to increase competence of PLC programming for electricalengineering education students;analysis of...
The proceedings contain 30 papers. The topics discussed include: development of critical and creative thinking skills to increase competence of PLC programming for electricalengineering education students;analysis of an industrial internship in the department of mechanical engineering with servqual, kano, and quality function deployment;the development of realia for the planetary gear unit to improve students' understanding on the basics of automatic transmission;concentration variation in the process of paper making from bamboo fiber;android-based applications on teaching skills based on TPACK analysis;the mind-mapping learning model in the robotics course;improving the compact crucible furnace performance by adding fins in heating chamber;and developing a control system for a racket-wielding robot using a combination of promoximity sensor and pneumatic actuator to optimize shuttlecocck hit.
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