Results 31 to 40 of about 394,213 (300)

A system identification based approach for pulsed eddy current non-destructive evaluation [PDF]

open access: yes, 2007
This paper is concerned with the development of a new system identification based approach for pulsed eddy current non-destructive evaluation and the use of the new approach in experimental studies to verify its effectiveness and demonstrate its ...
Agurto, A.   +3 more
core   +1 more source

Current situation and development trend of line selection method for single-phase grounding fault in mine power supply system

open access: yesMeikuang Anquan
The mine power supply system usually adopts the neutral point ungrounded mode or the arc suppression coil grounded mode, due to the particularity and complexity of underground environment, the problem of single-phase grounding fault line selection has ...
Zhanshe YANG, Cheng ZHANG, Xiang RONG
doaj   +1 more source

A line selection method for single phase ground fault in coal mine power supply system based on wavelet packet

open access: yesGong-kuang zidonghua, 2018
In view of problems of low accuracy and poor reliability of line selection methods for single phase ground fault in existing coal mine power supply system, a line selection method for single phase ground fault in coal mine power supply system based on ...
LUO Chao   +6 more
doaj   +1 more source

Is Earthquake Triggering Driven by Small Earthquakes? [PDF]

open access: yes, 2002
Using a catalog of seismicity for Southern California, we measure how the number of triggered earthquakes increases with the earthquake magnitude. The trade-off between this relation and the distribution of earthquake magnitudes controls the relative ...
Helmstetter, Agnes
core   +4 more sources

Adaptive faulted phase selection for lines connecting converter-based sources [PDF]

open access: yesIET Conference Proceedings, 2022
Renewable sources with numerous converter-control operations introduce dynamic fault signatures in the network. Such nonhomogeneous situations result in maloperation of available phase selection methods at times, which may further lead to incorrect protection decisions and affect system resilience.
Paladhi, Subhadeep   +2 more
openaire   +1 more source

A new type of single-phase grounding fault line selection and location method for mine distribution network

open access: yesGong-kuang zidonghua, 2016
Characteristics of mine distribution network and difficulties of singlephase grounding fault line selection and location were analyzed. A new type of singlephase grounding fault line selection and location method for mine distribution network was ...
ZONG Weilin   +5 more
doaj   +1 more source

Shear wave structure of a transect of the Los Angeles basin from multimode surface waves and H/V spectral ratio analysis [PDF]

open access: yes, 2020
We use broad-band stations of the ‘Los Angeles Syncline Seismic Interferometry Experiment’ (LASSIE) to perform a joint inversion of the Horizontal to Vertical spectral ratios (H/V) and multimode dispersion curves (phase and group velocity) for both ...
Beroza, Gregory C.   +3 more
core  

Unbalanced load flow with hybrid wavelet transform and support vector machine based Error-Correcting Output Codes for power quality disturbances classification including wind energy [PDF]

open access: yes, 2019
Purpose. The most common methods to designa multiclass classification consist to determine a set of binary classifiers and to combine them. In this paper support vector machine with Error-Correcting Output Codes (ECOC-SVM) classifier is proposed to ...
Bouktir, Tarek   +2 more
core   +3 more sources

Selection of Generator Fault Impedances for Enhancement of Network-Wide Fault Behaviour [PDF]

open access: yes, 2002
This paper presents the development and application of a method for illustrating graphically the range of suitable generator designs for achieving a desired performance of a network under either balanced or single line-to-ground fault conditions.
McDonald, J. D. F., Saha, Tapan K.
core   +1 more source

Radiotherapy Delivery in Deep Inspiration for Pediatric Patients—Final Results of the Phase II Feasibility Study TEDDI

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Introduction The TEDDI trial tested the feasibility and reproducibility of deep‐inspiration breath‐hold (DIBH) in pediatric patients referred for radiotherapy. This report presents final results, including patient‐reported outcomes (PRO) and dosimetric comparison of DIBH and free‐breathing (FB).
Daniella Elisabet Østergaard   +11 more
wiley   +1 more source

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