Orthogonal zero interpolants (OZI) are polynomials which interpolate the “zero-function” at a finite number of pre-assigned nodes and satisfy orthogonality condition. OZI’s can be constructed by the 3-term recurrence relation. These interpolants are found useful in the solution of constrained approximation problems and in the structure of Gauss-type quadrature rules. We present some theoretical...

orthogonal zero interpolants (ozi) are polynomials which interpolate the “zero-function” at a finite number of pre-assigned nodes and satisfy orthogonality condition. ozi’s can be constructed by the 3-term recurrence relation. these interpolants are found useful in the solution of constrained approximation problems and in the structure of gauss-type quadrature rules. we present some theoretical...

This work is an experimental study of the differential scanning calorimetry characterisation of polymer materials used in food packaging materials, such as polypropylene (0·03 mm), polyethylene (0·1 and 0·03 mm), poly(D-(-)-β-hydroxybutyrate) (powder), two-layered polypropylene (0·064 mm), and two-layered polypropylene with poly-vinylidene-chloride (0·012/0·021). The polymer stability was check...

The well known zero in the group velocity of the first-order symmetric (S1) plate wave mode has been exploited in air-coupled ultrasonic imaging to obtain significantly higher sensitivity than can be achieved in conventional air-coupled scanning. At the zero group velocity point at the frequency minimum of the S1 mode, a broad range of wavenumbers couple into the first-order symmetric mode at n...

The electrical properties characterization of AlGaN/GaN based Modulation Doped Field Effect Transistor (MODFET) is reported. Threshold voltage Vth=-3.87 V, maximum saturation current Idss=122.748 mA, gate-source capacitance at zero gate voltage and also maximum gate-source capacitance= 0.161753 pF/μm, gate-source capacitance=0.157233 pF/μm at Id=0.3Idss, trans-conductance (gm) = 31.3806 mS/mm a...