Results 221 to 230 of about 8,035,233 (306)

Estimating the uncertainty of video‐based flow velocity and discharge measurements due to the conversion of field to image coordinates

Hydrological Processes, 2021
Video‐based hydrometry continues to develop for contactless discharge measurements, automated flood gauging stations and the use of crowd‐sourced flood videos for discharge reconstruction. Irrespective of the velocimetry algorithm used (LSPIV, STIV, PTV…)
J. Le Coz, B. Renard, V. Vansuyt, M. Jodeau, A. Hauet   +4 more
semanticscholar   +1 more source

A Compact Log Periodic Planar Dipole UHF Array Sensor for Partial Discharge Measurements

IEEE Sensors Journal, 2021
A compact log periodic planar dipole UHF array antenna from 500 MHz to 2.2 GHz for partial discharge measurement in power transformers is presented in this paper. The compactness of the designed antenna is achieved by shaping the arms and tuning selected
M. Chakravarthi, A. Giridhar, G. Kumar, D. Sarma   +3 more
semanticscholar   +1 more source

Partial discharge measurements and life estimation in DC electrical insulation during voltage transients and steady state

, 2021
The design and operation of DC insulation systems is more complex than for AC sinusoidal supply. The most subtle issues are how the electric field in DC can vary with operation and affect the partial discharge inception voltage and partial discharge ...
R. Ghosh, P. Seri, G. Montanari
semanticscholar   +1 more source

Challenges Associated with Implementation of HFCTs for Partial Discharge Measurements

Conference on Precision Electromagnetic Measurements, 2020
The stochastic nature of partial discharge (PD) and the inability to directly detect charge displacement makes representative measurement of such events very challenging.
J. Klüss, A. Elg
semanticscholar   +1 more source

Partial discharge measurements

IEEE Transactions on Dielectrics and Electrical Insulation, 2008
[No abstract available]
R. Bartnikas, POMPILI, Massimo
openaire   +2 more sources

Methodology for improving reliability of river discharge measurements.

Journal of Environmental Management, 2019
Programs to monitor water characteristics are undertaken to identify any possible water pollution of a river. To compute reliable water pollution loads, accurate river discharge and pollutant/tracer concentrations are required.
E. Bekri, P. Yannopoulos, Polychronis Economou   +2 more
semanticscholar   +1 more source

Partial Discharge Measurements under DC Voltages Containing Harmonics Produced by Power Electronic Devices

Conference on Electrical Insulation and Dielectric Phenomena, 2018
Partial Discharge (PD) monitoring is one of the main diagnostic instrument to evaluate the reliability of modern electrical transmission and distribution systems.
P. Romano, A. Parastar, A. Imburgia, J. Blennow, M. Bongiorno, A. D. Di Tommaso, T. Hammarström, Y. Serdyuk   +7 more
semanticscholar   +1 more source

Measuring health literate discharge practices

International Journal of Health Care Quality Assurance, 2017
PurposeHealth literate discharge practices meet patient and family health literacy needs in preparation for care transitions from hospital to home. The purpose of this paper is to measure health literate discharge practices in Ontario hospitals using a new organizational survey questionnaire tool and to perform psychometric testing of this new survey ...
Jennifer Innis, Jan Barnsley, Whitney Berta, Imtiaz Daniel   +3 more
openaire   +2 more sources

Assessment of acoustic Doppler current profiler heading errors on water velocity and discharge measurements

Flow Measurement and Instrumentation, 2018
Boat-mounted acoustic Doppler current profilers (ADCPs) are commonly used to make both water velocity and discharge measurements. Most ADCPs measure the direction of travel of the water and boat using an internal compass.
D. Mueller
semanticscholar   +1 more source

Discharge Measurements and Streamflow Analysis

2017
James A. Gore, James Banning
openaire   +2 more sources