A Legendre wavelet method is presented for numerical solutions of stochastic Volterra-Fredholm integral equations. The main characteristic of the proposed method is that it reduces stochastic Volterra-Fredholm integral equations into a linear system of equations. Convergence and error analysis of the Legendre wavelets basis are investigated. The efficiency and accuracy of the proposed method wa...

We tested the assumption that nifedipine blocks L-type calcium current [I(Ca(L))] at +10 mV and unmasks Na(+)/Ca(2+) exchange-triggered contractions in guinea pig isolated ventricular myocytes. Voltage-clamp pulses elicited I(Ca(L)) at +10 mV and evoked contractions in myocytes superfused with Tyrode's solution (35 degrees C). Nifedipine blocked I(Ca(L)) with an IC(50) of 0.3 microM; this decre...

We present a silicon model of an axon which shows promise as a building block for pulse-based neural computations involving correlations of pulses across both space and time. The circuit shares a number of features with its biological counterpart including an excitation threshold, a brief refractory period after pulse completion, pulse amplitude restoration, and pulse width restoration. We prov...

BACKGROUND AND OBJECTIVES S-(+)-ketamine is an intravenous anaesthetic and sympathomimetic with properties of local anaesthetic. It has an effect of an analgetic and local anaesthetic when administered epidurally, but there are no data whether low doses of S-(+)-ketamine have sympathomimetic effects. The aim of this study was to determine whether low doses of S-(+)-ketamine, given epidurally to...

Measures: The results of the previous Figures have been obtained on an emittingkeceiving 4-IPPM 2Mbit/s circuit prototype. A standard PPM codifier is added to a pulse conformation block that takes eight samples stored in a look-up table to give the form to the pulse. It has been implemented on an FPGA ALTERA EPM 5064 JC-1. The D/A is a simple and inexpensive DAC08. As the optical emitter we use...

In this paper a unified approach via block-pulse functions (BPFs) or shifted Legendre polynomials (SLPs) is presented to solve the linear-quadratic-Gaussian (LQG) control problem. Also a recursive algorithm is proposed to solve the above problem via BPFs. By using the elegant operational properties of orthogonal functions (BPFs or SLPs) these computationally attractive algorithms are developed....

A pulse diversity-based jammer cancellation processor is designed in this paper to cancel the deception electronic counter measures (ECM) signals repeated by a digital radio frequency memory (DRFM) for radar systems. In order to remove the conventional stationary hypotheses and the rigorous application conditions, an orthogonal transmission block code set is achieved in one pulse repetition int...

In this study, we present a direct method to solve nonlinear two-dimensional VolterraHammerestein integral equations in terms of twodimensional piecewise constant block-pulse functions (2D-PCBFs). Properties of these functions and operational matrix of integration together with the product operational matrix are presented and used to transform the integral equation to a matrix equation which co...

results totally, 20 patients completed the study. the cms and pain scores significantly improved after the block. conclusions the use of the modified lateral ssnb of feigl significantly reduces pain and increases shoulder function, in chronic shoulder pain. patients and methods patients were evaluated using the constant-murley score (cms) and number rating scale values for pain. the ssn was blo...