نتایج جستجو برای: background sdft
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We describe a new approach to the processing of audio by way of transformations to and from the frequency domain. In previous papers we described the Sliding Discrete Fourier Transform (SDFT), comprising an extension to the classic phase vocoder algorithm to perform a frame update every sample. We proposed this as offering musical advantages over the common STDFT, including lower latency and th...
Since dc distribution minimizes the number of power conversion stages, it lowers overall cost, losses, and weight a system. Critical systems use IT grounding because is tolerant to first-fault. Hence, this an attractive option for hybrid electric aircraft (HEA), which combines gas engines with motors driven by electronic converters. This letter proposes accurate implementation procedure first-f...
In order to make an effective extraction of the fundamental components for a non-ideal three-phase grid, improved sliding discrete Fourier transform (ISDFT) has been proposed in this paper. Firstly, signal characteristics are studied detail, which reveals that there not only typical harmonic components, but also double frequency exist dq coordinates when grid voltages unbalanced. Then, structur...
The single-phase phase-locked loop (PLL) is essential for the stable operation and control of grid-connected converters. However, in practical applications, grid voltage usually affected by harmonics dc offset, which will cause errors output PLL. Therefore, using sliding discrete Fourier transform filter (SDFT) as a prefilter, this paper proposes an improved synchronous reference frame PLL with...
Part I of this paper set sets forth theory and algorithms for adaptive fault detection/location technique, which is based on Phasor Measurement Unit (PMU). This paper is Part II of this paper set. A new timing device named “Global Synchronism Clock Generator, GSCG” including its hardware and software design is described in this paper. Experimental results show that the synchronized error of ris...
UNLABELLED Tendon is composed of rope-like fascicles, bound together by interfascicular matrix (IFM). Our previous work shows that the IFM is critical for tendon function, facilitating sliding between fascicles to allow tendons to stretch. This function is particularly important in energy storing tendons, which experience extremely high strains during exercise, and therefore require the capacit...
Background A common cause of lameness in horses is tenovaginitis the digital flexor tendon sheath (DFTS). Ultrasound and contrast tenography have become frequently used diagnostic tools for abnormalities DFTS, but are considered insufficiently accurate describing specific lesions. Objectives To determine sensitivity specificity computed tomographic (CTT) 3 Tesla magnetic resonance imaging (MRI)...
Stochastic density functional theory (sDFT) is becoming a valuable tool for studying ground-state properties of extended materials. The computational complexity describing the Kohn–Sham orbitals replaced by introducing set random (stochastic) leading to linear and often sub-linear scaling certain observables at account statistical error. Schemes reduce noise are essential, example, determining ...
s: We would like to sincerely express our gratitude to the university of Tehran and faculty of veterinary medicine research council for approval and financial support for this extensive evaluation of tensile strength of the superficial digital flexor tendon in horses subjected to Transcutaneous Electrical Neural Stimulation (TENS) therapeutic regimen Problems statement: The purpose of this stud...
The present study was designed to carry out an in vivo and in vitro comparative evaluation of three bio-scaffold augmentation devices used for superficial digital flexor tenorrhaphy in donkeys. Twenty-four clinically healthy donkeys were assigned for three treatment trials (n = 8) using one of three bioscaffold materials (glycerolized bovine pericardium xenograft, tendon allograft and allograft...
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