Results 31 to 40 of about 273,564 (272)

A randomized clinical trial comparing family-focused treatment and individual supportive therapy for depression in childhood and early adolescence [PDF]

open access: yes, 2017
OBJECTIVE: Despite the morbidity and negative outcomes associated with early-onset depression, few studies have examined the efficacy of psychosocial treatment for depressive disorders during childhood.
Asarnow, Joan R.   +3 more
core   +1 more source

FFT Shift

open access: yesThe Insight Journal, 2006
A common usage when working with Fourier transform is to shift the the image to put the zero-frequency component in the center of the image. This contribution comes with a filter to perform this transform.
openaire   +2 more sources

The violent ground motion before the Jiuzhaigou earthquake Ms7.0

open access: yesOpen Geosciences, 2020
An Ms7.0 earthquake occurred in Jiuzhaigou, Sichuan Province, China, on August 8, 2017. In this study, we used the vertical component data from 31 seismic stations near the epicenter from May 1 to August 20, 2017, to calculate the amplitude spectrum ...
Xu Kangsheng, Li Ying
doaj   +1 more source

Finite formation time effects in inclusive and semi-inclusive electro-disintegration of few-body nuclei [PDF]

open access: yes, 2001
Finite Formation Time (FFT) effects in the exclusive reaction ^4He(e,e'p)^3H at high values of Q^2 are introduced and discussed. It is shown that the minimum in the momentum distributions predicted by the Plane Wave Impulse Approximation (PWIA), which is
Atti, C. Ciofi degli   +3 more
core   +2 more sources

Symmetric FFTs [PDF]

open access: yesMathematics of Computation, 1986
In this paper, we examine the FFT of sequences x n = x N + n {x_n} = {x_{N + n}} with period N that satisfy certain symmetric relations.
openaire   +1 more source

PLL wrap function for synchronization in phase jump disturbances

open access: yesIngeniería e Investigación, 2021
Synchrony plays a major role in the interconnection process between local electric power generation systems and the electrical grid. Grid phase disturbances prevent the generation system from maintaining synchrony.
Clementina Rueda Germán   +3 more
doaj   +1 more source

The Tangent FFT [PDF]

open access: yes, 2007
The split-radix FFT computes a size-n complex DFT, when n is a large power of 2, using just arithmetic operations on real numbers. This operation count was first announced in 1968, stood unchallenged for more than thirty years, and was widely believed to be best possible. Recently James Van Buskirk posted software demonstrating that the split-radix FFT
openaire   +2 more sources

Design and Implementation of Three-phase Precision Program-controlled Standard Source

open access: yesZhejiang dianli, 2022
The traditional program-controlled standard source cannot meet the requirements of the OIML R46 standard on small current and harmonic output accuracy. For the sake of improving the steady-state output accuracy and dynamic response speed of the standard ...
WANG Weihong   +4 more
doaj   +1 more source

Journal Staff [PDF]

open access: yes, 2012
         The fast Fourier transform (FFT) plays an important role in digital signal processing (DSP) applications, and its implementation involves a large number of computations.
Sreehari, Ambuluri
core   +1 more source

Crucial parameters for precise copy number variation detection in formalin‐fixed paraffin‐embedded solid cancer samples

open access: yesMolecular Oncology, EarlyView.
This study shows that copy number variations (CNVs) can be reliably detected in formalin‐fixed paraffin‐embedded (FFPE) solid cancer samples using ultra‐low‐pass whole‐genome sequencing, provided that key (pre)‐analytical parameters are optimized.
Hanne Goris   +10 more
wiley   +1 more source

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