Results 11 to 20 of about 8,493,253 (253)

Modelling and extraction of fundamental frequency in speech signals [PDF]

open access: yes, 2014
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.One of the most important parameters of speech is the fundamental frequency of vibration of voiced sounds.
Pawi, Alipah
core   +7 more sources

Edge reconstruction of the Ihara zeta function [PDF]

open access: yes, 2018
We show that if a graph G has average degree d ≥ 4, then the Ihara zeta function of G is edge-reconstructible. We prove some general spectral properties of the edge adjacency operator T: it is symmetric for an indefinite form and has a "large" semi ...
Cornelissen, G.   +5 more
core   +2 more sources

Double calculus [PDF]

open access: yesSurveys in Mathematics and its Applications, 2023
We present a streamlined, slightly modified version, in the two-variable situation, of a beautiful, but not so well known, theory by Bögel, already from the 1930s, on an alternative higher dimensional calculus of real functions, a double calculus, which ...
Patrik Lundström
doaj  

On interpolation of operator, which is the sum of weighted Hardy-Littlewood and Cesaro mean operators

open access: yesResearches in Mathematics, 2019
It is proved that operators, which are the sum of weighted Hardy-Littlewood $\int\limits_0^1 f(xt) \psi(t) dt$ and Cesaro $\int\limits_0^1 f(\frac{x}{t}) t^{-n} \psi(t) dt$ mean operators, are limited on Lorentz spaces $\Lambda_{\varphi, a} (\mathbb{R})$,
B.I. Peleshenko
doaj   +1 more source

Correlation between Cortical State and Locus Coeruleus Activity: Implications for Sensory Coding in Rat Barrel Cortex

open access: yesFrontiers in Neural Circuits, 2016
Cortical state modulates the background activity of cortical neurons, and their evoked response to sensory stimulation. Multiple mechanisms are involved in switching between cortical states including various neuromodulatory systems.
Zeinab eFazlali   +9 more
doaj   +1 more source

A Comprehensive Assessment of Fundamental Overcurrent Relay Operation Optimization Function and Its Constraints

open access: yesEnergies, 2022
The optimization of overcurrent relays’ operation is a topic associated with protection coordination of distribution networks. Usually, this refers to medium-voltage networks, since they are protected by numerical relay devices, as opposed to low-voltage
Michele Rojnić   +3 more
doaj   +1 more source

Removing micromelody from fundamental frequency contours [PDF]

open access: yes, 2010
In this paper we describe a new method to diminish microprosodic components of fundamental frequency contours by applying weight functions linked to microprosodically classified phone combinations.
Reichel, Uwe D., Winkelmann, Raphael
core   +1 more source

Fundamental study on a method for evaluating swallowing function using swallowing pattern images

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Recently, dysphagia associated with aging has become more a serious concern. The current study therefore sought to develop a novel method for evaluating swallowing function that focused on changes in the movement of swallowing-related organs, which ...
Katsuhiro KAMATA   +4 more
doaj   +1 more source

Investigating the use of knowledge management as a management tool in the mining industry [PDF]

open access: yesProblems and Perspectives in Management, 2016
The main objective of this research study is to investigate the extent to which knowledge management is used within the mining industry. Knowledge management includes the identification and examination of available and required knowledge and the ...
Dinko Herman Boikanyo   +2 more
doaj   +1 more source

Investigating the use of business, competitive and marketing intelligence as management tools in the mining industry [PDF]

open access: yesProblems and Perspectives in Management, 2016
The main objective of this research study is to investigate the extent to which business intelligence, competitive intelligence and marketing intelligence are used within the mining industry.
Dinko Herman Boikanyo   +2 more
doaj   +1 more source

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