This study compared voice range profiles (VRPs) of modal and falsetto register in 53 dysphonic non-dysphonic adult women with gliding vowel /a/’. The results shows that maximum fundamental frequency (F0MAX), intensity (IMAX), F0 (F0RANGE), (IRANGE) are lower the group than group. F0MAX F0RANGE significantly higher both groups. I<...

The use of traditional biocides to halt or reduce biodeterioration is increasingly deterred, due risks for human health and the environment, as well potential interference with stone materials. Alternative eco-friendly substances are needed limit these issues. Here we aim evaluate devitalization lichens by a new bio-based product: wood distillate (also known pyroligneous acid), by-product plant...

We investigate some topological and geometric properties of the set R of all refinable functions in L(R), and of the set of all MRA affine frames. We prove that R is nowhere dense in L(R); the unit sphere of R is path-connected in the L-norm; and for any M -dimensional hyperplane generated by L-functions f0, . . . , fM , either almost all the functions in the hyperplane are refinable or almost ...

In this paper, we study the significance of aperiodicity in the pitch-perception of expressive voices such as Noh voice and laughter signals. The excitation source characteristics in the production of these signals is represented in terms of a sequence of impulses. The impulse sequence is derived from the acoustic signal using a modified zero-frequency filtering method. The time intervals betwe...

Digital watermarks are usually embedded in the still images’ frequency domain. The DWT/DCT coefficients are usually modelled by the Generalized Gaussian Distribution, while the DFT coefficients are modelled by the Weibull Distribution. The idea of this paper is to use statistical properties of the host signal. The watermark is embedded through the modification of the distribution of host signal...

Let f be a self-mapping on a topological space X and f denote the mth iterate of f , that is, f f ◦ fm−1, f0 id, m 1, 2, . . . . Let C X,X be the set of all continuous self-mappings on X. Equations having iteration as their main operation, that is, including iterates of the unknown mapping, are called iterative equations. It is one of the most interesting classes of functional equations 1–4 , b...

Given relatively prime positive integers a1, . . . , an, the Frobenius number is the largest integer that cannot be written as a nonnegative integer combination of the ai. We examine the parametric version of this problem: given ai = ai(t) as functions of t, compute the Frobenius number as a function of t. A function f : Z+ → Z is a quasi-polynomial if there exists a period m and polynomials f0...