Browsing by Title
Now showing items 25554-25573 of 50599
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Time-Frequency Signal Analysis and Processing: A Comprehensive Reference
( Elsevier Inc. , 2015 , Book)Time-Frequency Signal Analysis and Processing (TFSAP) is a collection of theory, techniques and algorithms used for the analysis and processing of non-stationary signals, as found in a wide range of applications including ... -
Time-frequency signal and image processing of non-stationary signals with application to the classification of newborn EEG abnormalities
( IEEE , 2011 , Conference Paper)This paper presents an introduction to time-frequency (T-F) methods in signal processing, and a novel approach for EEG abnormalities detection and classification based on a combination of signal related features and image ... -
Time-frequency synthesis and filtering
( Elsevier Inc. , 2016 , Book chapter)This chapter presents methods and techniques to design time-varying linear systems such as filters with precise time-frequency (t,f) specifications; this capability can then allow one to model and predict accurately the ... -
Time-motion analysis of elite male kickboxing competition
( NSCA National Strength and Conditioning Association , 2014 , Article)Time-motion analysis of elite male kickboxing competition. J Strength Cond Res 28(12): 3537–3543, 2014—The objective of the study was to analyze the time structure of high-level kickboxing matches. A total of 45 combats ... -
Time-Optimal Control Of High-Speed Flexible-Robot Arm Using PD Algorithms
( Qatar University , 2000 , Article)This paper addresses utilization of proportional-plus derivative (PD) control algorithms for time-optimal control of flexible-robots. Flexibility is modeled using one mode of vibration with negligible structural damping. ... -
Time-resolved photocurrent spectroscopic diagnostics of electrically active defects in AlGaN/GaN High Electron Mobility Transistor (HEMT) structure grown on Si wafers
( American Scientific Publishers , 2016 , Article)Time-resolved photocurrent (TRPC) spectroscopy with a variable-wavelength sub-bandgap light excitation was used to study the dynamics of the decaying photocurrent generated in the heterostructures of the AlGaN/GaN high ... -
Time-resolved terahertz spectroscopy reveals the influence of charged sensitizing quantum dots on the electron dynamics in ZnO
( Royal Society of Chemistry , 2017 , Article)Photoinitiated charge carrier dynamics in ZnO nanoparticles sensitized by CdSe quantum dots is studied using transient absorption spectroscopy and time-resolved terahertz spectroscopy. The evolution of the transient spectra ... -
Time-series forecasting of Bitcoin prices using high-dimensional features: a machine learning approach
( Springer , 2020 , Article)© 2020, Springer-Verlag London Ltd., part of Springer Nature. Bitcoin is a decentralized cryptocurrency, which is a type of digital asset that provides the basis for peer-to-peer financial transactions based on blockchain ... -
A time-varying copula approach for modelling dependency: New evidence from commodity and stock markets
( Elsevier , 2016 , Article)This paper examines the time-varying conditional dependency between commodity markets and stock markets by applying the rolling-sample technique on the dependence parameter of copula. The dataset consists of the closing ... -
Time-varying efficiency of developed and emerging bond markets: Evidence from long-spans of historical data
( Elsevier B.V. , 2018 , Article)Bonds have become an important part of investment portfolios for individuals as well as for institutions, particularly after the recent financial crisis. This paper empirically investigates the Adaptive Market Hypothesis ... -
Timetabling hub-and-spoke parcel distribution inter-facility network
( Inderscience Publishers Ltd , 2013 , Article)This paper introduces an important problem encountered when designing hub-and-spoke parcel distribution network. This problem, which comes after generating the network design and before implementing it, is concerned with ... -
A time–frequency based approach for generalized phase synchrony assessment in nonstationary multivariate signals
( Elsevier , 2013 , Article)This paper proposes a new approach to estimate the phase synchrony among nonstationary multivariate signals using the linear relationships between their instantaneous frequency (IF) laws. For cases where nonstationary ... -
TiO2 encrusted MXene as a High-Performance anode material for Li-ion batteries
( Elsevier B.V. , 2022 , Article)TiO2 has the potential to be a viable anode material for high-power lithium-ion batteries (LIBs). However, the lower electronic conductivity of TiO2 limits its practical applications. Here, the synthesis of novel TiO2 ... -
TiO2 nanotube coating on stainless steel 304 for biomedical applications
( Elsevier Ltd , 2015 , Article)The present study describes the anodic growth of TiO2 nanotube thin layer on stainless steel 304 in ethylene glycol/water/ammonium fluoride electrolyte. In this regard, pure titanium was coated on stainless steel 304 ... -
TiO2 nanotubes and mesoporous silica as containers in self-healing epoxy coatings
( Nature Publishing Group , 2016 , Article)The potential of inorganic nanomaterials as reservoirs for healing agents is presented here. Mesoporous silica (SBA-15) and TiO2 nanotubes (TNTs) were synthesized. Both epoxy-encapsulated TiO2 nanotubes and amine-immobilized ... -
TiO2 nanotubes with ultrathin walls for enhanced water splitting
( Royal Society of Chemistry , 2015 , Article)We demonstrate, for the first time, the synthesis of titania nanotubes with ultrathin (3–5 nm) wall thickness. As revealed by the incident photon-to-current collection efficiency (IPCE) and electrochemical impedance ... -
TiO2-functionalized biochar from pistachio nutshells: adsorptive removal and photocatalytic decolorization of methyl orange
(2023 , Article)Pistachio nutshells-derived biochar (PNS-BC) was utilized as a cost-effective adsorbent for competently removing a model dye, methyl orange (MO) from wastewater. Three concentrations of TiO2; 1%, 2%, and 3% were used to ... -
TiO2-pillared clays with well-ordered porous structure and excellent photocatalytic activity
( Royal Society of Chemistry , 2015 , Article)TiO2-pillared clays with well-ordered porous structures are successfully prepared via incorporating TiO2 nanosol particles into the clays, where empty octahedral sites are partially modified with divalent metal ions such ...
