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Hybrid parametric islanding detection technique for microgrid system [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
In microgrid distribution generation (DG) sources are integrated parallelly for the economic and efficient operation of a power system. This integration of DG sources may cause many challenges in a microgrid. The islanding condition is termed a condition
S. Jayanthi   +2 more
doaj   +1 more source

Extended prone positioning duration for COVID-19-related ARDS: benefits and detriments

open access: yesCritical Care, 2022
Background During the COVID-19 pandemic, many more patients were turned prone than before, resulting in a considerable increase in workload. Whether extending duration of prone position may be beneficial has received little attention.
Thaïs Walter   +6 more
doaj   +1 more source

A polo ball in the right atrium, importance of echocardiographic characteristics of intracardiac myxomas: a case report

open access: yesJournal of Medical Case Reports, 2023
Background Myxomas are the most prevalent type of heart tumors, mainly occurring in the left atrium, with approximately 20% of cases found in the right atrium.
Mira Hamdan   +2 more
doaj   +1 more source

Loculated pericardial hematoma compressing the right atrium post mechanical aortic valve replacement and the role of point-of-care echocardiography: a case report

open access: yesJournal of Medical Case Reports, 2023
Background Bleeding in the postoperative period after cardiac surgery is relatively frequent, especially in patients with early anticoagulant therapy, as in the case of mechanical valve replacement. Diffuse hemopericardium is relatively easy to diagnose;
Mira Hamdan   +2 more
doaj   +1 more source

UAV-Based Crowd Surveillance in Post COVID-19 Era

open access: yesIEEE Access, 2021
Since outdoor events are gradually allowed within the current pandemic situation, a close monitoring of the crowd activity is needed to avoid undesired contact and disease transmission. In this context, unmanned aerial vehicles (UAVs) can be occasionally
Nizar Masmoudi   +4 more
doaj   +1 more source

Spatial Filtering of Signals under Imprecise Calibration of Antenna Arrays

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2023
Introduction. Spatial filtering of signals is performed for the selection the signals of interest when the signals spectra overlap. The quality of spatial filtering depends on the accuracy of antenna array (AA) calibration, which allows estimation of the
M. E. Shevchenko   +3 more
doaj   +1 more source

Panser la cognition

open access: yesAppareil, 2023
L’article propose une analyse critique de l’explication computationnaliste de l’esprit-cerveau, dans le contexte d’une convergence de l’intelligence artificielle et des neurosciences.
Michał Krzykawski
doaj   +1 more source

Video Traffic Analysis for Real-Time Emotion Recognition and Visualization in Online Learning

open access: yesIEEE Access, 2023
Since the outbreak of the COVID-19 crisis, the transition to remote education presented several challenges to educational institutions. Unlike face-to-face classes where educators can modify and keep track of the lessons and content according to the ...
Ayoub Sassi   +4 more
doaj   +1 more source

ارزیابی شاخص‌های تحمل به تنش خشکی هیبریدهای حاصل از تلاقی ارقام تجاری سیب‌زمینی [PDF]

open access: yesتنش های محیطی در علوم زراعی, 2021
در راستای ارزیابی شاخص­های تحمل به خشکی تعداد 12 هیبرید حاصل از تلاقی ارقام تجاری سیب­زمینی، آزمایشی در قالب طرح بلوک­های کامل تصادفی در سه تکرار در دو سطح آبیاری (تأمین 100 و 65 درصد نیاز آبی) در گلخانه شرکت کشاورزی زرع گستر آرتا اجرا شد.
محمدرضا وصالی   +3 more
doaj   +1 more source

RADIO SOURCE DIRECTION FINDING IN WIDE FREQUENCY BAND USING CIRCULAR ANTENNA ARRAY

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2018
For the VHF broadband direction finder, coherent and incoherent direction finding algorithms for switched and non-switched connection of the antenna array (AR) to receiving device in single-signal and multi-signal direction finding modes are developed ...
Maya E. Shevchenko   +2 more
doaj   +1 more source

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