Results 31 to 40 of about 781,206 (295)

The diagnostic performance and clinical value of deep learning-based nodule detection system concerning influence of location of pulmonary nodule

open access: yesInsights into Imaging, 2023
Background The deep learning-based nodule detection (DLD) system improves nodule detection performance of observers on chest radiographs (CXRs). However, its performance in different pulmonary nodule (PN) locations remains unknown. Methods We divided the
Seulgi You   +10 more
doaj   +1 more source

A transiting planet among 23 new near-threshold candidates from the OGLE survey - OGLE-TR-182 [PDF]

open access: yes, 2007
By re-processing the data of the second season of the OGLE survey for planetary transits and adding new mesurements on the same fields gathered in subsequent years with the OGLE telescope, we have identified 23 new transit candidates, recorded as OGLE-TR-
A. Shporer   +53 more
core   +7 more sources

Security risk assessment and protection in the chemical and process industry [PDF]

open access: yes, 2014
This article describes a security risk assessment and protection methodology that was developed for use in the chemical- and process industry in Belgium. The approach of the method follows a risk-based approach that follows desing principles for chemical
American Petroleum Institute   +19 more
core   +1 more source

Two-Level Islanding Detection Method for Grid-Connected Photovoltaic System-Based Microgrid With Small Non-Detection Zone

open access: yesIEEE Transactions on Smart Grid, 2021
This article proposes a fast and reliable two-level islanding detection method (IDM) for grid-connected photovoltaic system (GCPVS)-based microgrid. In the first level of the proposed IDM, the magnitude of the rate of change of output voltage (ROCOV) is computed.
Reza Bakhshi-Jafarabadi   +3 more
openaire   +4 more sources

Performance analysis of power system parameters for islanding detection using mathematical morphology

open access: yesAin Shams Engineering Journal, 2021
Islanding detection is imperative for the protection of distribution system supported by distributed generation. The accuracy of islanding detection technique mainly depends on the selection of suitable parameter.
Safdar Raza   +3 more
doaj   +1 more source

Comparison of 7 culture methods for Salmonella serovar Enteritidis and Salmonella serovar Typhimurium isolation in poultry feces [PDF]

open access: yes, 2018
The present work compared 7 different culture methods and 3 selective-differential plating media for Salmonella ser. Enteritidis (SE) and S. Ser. Typhimurium (ST) isolation using artificially contaminated poultry feces. The sensitivity (Se) and accuracy (
Bueno, Dante Javier   +2 more
core   +1 more source

Sandia frequency shift parameter selection for multi-inverter systems to eliminate non-detection zone

open access: yesIET Renewable Power Generation, 2011
Among frequency drift islanding detection methods, Sandia frequency shift (SFS) is considered as one of the most effective methods in detecting islanding conditions for grid connected photovoltaic (PV) inverters. The performance of the SFS method during an islanding condition and its non-detection zone (NDZ) depends to a great extent on its parameters.
H.H. Zeineldin, S. Conti
openaire   +1 more source

Super-Earths: A New Class of Planetary Bodies

open access: yes, 2011
Super-Earths, a class of planetary bodies with masses ranging from a few Earth-masses to slightly smaller than Uranus, have recently found a special place in the exoplanetary science.
Armitage P. J.   +21 more
core   +1 more source

Proposed Sandia frequency shift for anti-islanding detection method based on artificial immune system

open access: yesAlexandria Engineering Journal, 2018
Sandia frequency shift (SFS) is one of the active anti-islanding detection methods that depend on frequency drift to detect an islanding condition for inverter-based distributed generation.
A.Y. Hatata   +2 more
doaj   +1 more source

State Feedback Based Islanding Detection in Grid-Tied Distributed Resources with Zero Non-detection Zone

open access: yes, 2023
<p>This paper presents a method for islanding detection of power-electronic interfaced grid-tied distributed energy resources. A dynamic phasor-based modeling approach is used to synthesize a state-space model of the islanded network. This model leads to the formation of a  generalized framework wherein the application of state feedback is ...
Vinod John, Sugoto Maulik
openaire   +1 more source

Home - About - Disclaimer - Privacy