Results 1 to 10 of about 1,135,313 (119)

High-voltage motors on-site testing [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2021
High-voltage motors are one of the most important components in thermal power plants and industrial facilities. However, they are often neglected in terms of preventive maintenance. Maintenance in power plants in Serbia still takes place according to the
Milić Momčilo   +4 more
doaj   +1 more source

The Elusive Nature of “Seeing”

open access: yesAtmosphere, 2023
Atmospheric image blur, “seeing”, is one of the key parameters that influences the selection of observatory sites and the performance of ground-based telescopes.
Andrei Tokovinin
doaj   +1 more source

Method for Measuring the Second-Order Moment of Atmospheric Turbulence

open access: yesAtmosphere, 2021
The turbulence moment of order m (μm) is defined as the refractive index structure constant Cn2 integrated over the whole path z with path-weighting function zm. Optical effects of atmospheric turbulence are directly related to turbulence moments.
Hong Shen   +3 more
doaj   +1 more source

Some basic questions into seismic experimental site

open access: yes地震科学进展, 2022
Expressions such as “experiment” and “test” , “experimental site” and “testing site” , “China SeismicExperimental Site” and others “experimental site” , “scientific projects deployed in experimental site” and “experimental site’s scientific projects ...
Yan Zhang, Changsheng Jiang, Libo Han
doaj   +1 more source

The Antarctic Astronomical Observations Intelligent Support Equipment “Dome A” Site-Testing Observatory: Electric Power Generation and Control Systems

open access: yesEnergies, 2020
AAOISE, the Antarctic Astronomical Observations Intelligent Support Equipment, is an autonomous control equipment serving for energy support and environment thermal preservation, which is used for astronomical science observations in the Antarctic “Dome ...
Shixiong Fang   +4 more
doaj   +1 more source

COMPARISON OF ON-SITE TESTING WITH ONLINE TESTING DURING THE COVID-19 PANDEMIC

open access: yesNovìtnâ Osvìta, 2021
In the paper, we deal with the comparison of the evaluation of students' language skills in two environments, on-site and online. Testing took place through the moodle platform, where we used e-test, during the first and second waves of the pandemic ...
Eva Stradiotová   +2 more
doaj   +1 more source

First day-time seeing observations at the Observatory of University of Zanjan in Iran [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2018
Recognition of the appropriate locations for ground-based observations of the Sun with high angular resolution depends on the factors such as seeing, meteorological and astronomical parameters.
Pardis Ahmadi   +3 more
doaj   +1 more source

“It was difficult to offer same day results”: evaluation of community-based point-of-care testing for sexually transmitted infections among youth using the GeneXpert platform in Zimbabwe

open access: yesBMC Health Services Research, 2022
Background Point-of-care testing for sexually transmitted infections (STIs) may improve diagnosis and treatment of STIs in low- and middle-income counties.
Kevin Martin   +15 more
doaj   +1 more source

Community engagement on-site rapid test for chlamydia and gonorrhea among men who have sex with men: a pioneering study in Guangzhou, China

open access: yesBMC Public Health, 2022
Background Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infections are prevalent among men who have sex with men (MSM) in China. However, compared to syphilis and HIV, the testing rate for chlamydia and gonorrhea remains low.
Xiao-Xin Lin   +12 more
doaj   +1 more source

SARS-CoV-2 Antigen Detection to Expand Testing Capacity for COVID-19: Results from a Hospital Emergency Department Testing Site

open access: yesDiagnostics, 2021
Background: SARS-CoV-2 antigen detection has currently expanded the testing capacity for COVID-19, which yet relies on the SARS-CoV-2 RNA RT-PCR amplification.
Giulia Menchinelli   +10 more
doaj   +1 more source

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