random early detection (red) is one of the most commonly used active queue management (aqm) algorithms that is recommended by ietf for deployment in the network. although red provides low average queuing delay and high throughput at the same time, but effectiveness of red is highly sensitive to the red parameters setting. as network condition varies largely, setting red's parameters with fixed ...

A broadband microwave photonic phase shifter based on a single III-V microdisk resonator heterogeneously integrated on and coupled to a nanophotonic silicon-on-insulator waveguide is reported. The phase shift tunability is accomplished by modifying the effective index through carrier injection. A comprehensive semi-analytical model aiming at predicting its behavior is formulated and confirmed b...

This paper presents a performance analysis of the Identiier Splitting Algorithm combined with polling, a contention resolution scheme used to inform the Base Station about the bandwidth needs of the Mobile Station in a wireless ATM network. An analytical model leads to the evaluation of performance parameters which determine the throughput and the access delay of the algorithm for diierent syst...

Usually, generalization is considered as a function of learning from a set of examples. In present work on the basis of recent neural network assembly memory model (NNAMM), a biologically plausible 'grandmother' model for vision, where each separate memory unit itself can generalize, has been proposed. For such a generalization by computation through memory, analytical formulae and numerical pr...

A design method for PID controllers base on internal model control (IMC) principles, direct synthesis method (DS), stability analysis (SA) system for pure integrating process with time delay is proposed. Analytical expressions for PID controllers are derived for several common types of process models, including first order and second-order plus time delay models and an integrator plus time dela...

We analyze properties of general quark mass matrices. The up and down quark mass matrices are written in terms of six dimensionless parameters and six quark masses. It is shown that two of the former six dimensionless parameters can be chosen to be any value. Our results are given without any approximation and assumption. And next, an interesting parameter space is found, in which some instruct...

The paper considers two observer-based rotor position estimation schemes for sensorless control of Interior Permanent Magnet Synchronous Machines (IPMSMs). Emphasis is given to techniques based on feedbacklinearisation followed by Luenberger observer design, and direct design of non-linear observers. Genetic Algorithms (GAS) based on the principles of evolution, natural selection and genetic mu...

This paper proposes a simple but effective admission control algorithm for integrated services packet networks. The admission control scheme, based on stochastic control, aims at ensuring user discrimination, by enforcing different call blocking probabilities. The queueing behavior of reservations is analytically characterized in the absence of admission control. From this, call blocking probab...

The guided-to-leaky hybrid mode transition in slab optical waveguides made on uniaxial crystals such as LiNbOs or LiTaOs is analyzed. Two different guided-to-leaky transitions have been identified, namely the ordinary cutoff and the extraordinary cut08 which occur when considering negative and positive birefringent materials, respectively. Analytical but transcendental expressions have been obt...

2. The TQMS Domain The complexity of chemical instrumentation is such that automation of certain instrument functions by conventional algorithmic means is either very difficult or completely unsuitable. This paper details work in progress on the application of knowledge based systems technology to the tuning of a complex analytical instrument, a triple quadrupole mass spectrometer (TQMS) . The ...