Results 1 to 10 of about 2,565,628 (279)

Hereditary combined deficiency of vitamin K–dependent clotting factors presenting as postoperative haemorrhage in a Syrian adolescent: a likely VKCFD type 2 phenotype [PDF]

open access: yesEuropean Journal of Case Reports in Internal Medicine
Hereditary combined deficiency of vitamin K–dependent clotting factors (VKCFD) is a rare autosomal recessive disorder characterized by reduced activity of factors II, VII, IX, and X despite normal vitamin K levels.
Mahmoud Alhamadeh Alswij   +5 more
doaj   +2 more sources

Presentation of Organ Dose and Effective Dose Conversion Factors in Dual-Energy Computed Tomography: A Monte Carlo Simulation Study [PDF]

open access: yesJournal of Biomedical Physics and Engineering, 2023
Background: The same conversion factors (k-factors) of Single CT (SECT) are applied to estimate the Effective Dose (ED) in Dual Energy Computed Tomography (DECT).
Delaram Pakravan
doaj   +1 more source

The planted k-factor problem [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2021
Abstract We consider the problem of recovering an unknown k-factor, hidden in a weighted random graph. For k = 1 this is the planted matching problem, while the k = 2 case is closely related to the planted traveling salesman problem.
Sicuro G., Zdeborova L.
openaire   +3 more sources

Effect of mist nozzle supply pressure on the ammonia absorption process [PDF]

open access: yesArchives of Environmental Protection, 2023
The article shows the effect of the supply pressure of fog nozzles on the process of ammonia sorption. In the tests, the nozzles flow characteristics Q=f(p) and the dependence of NH3 concentration as a function of the water stream feeding in time at ...
Wiktor Wąsik   +3 more
doaj   +1 more source

Estimation of radio refractivity from satellite-derived meteorological data over a decade for West Africa

open access: yesScientific African, 2021
Radio refractivity, which is the bending of a radio signal as it propagates through media, is very important in works involving terrestrial atmospheric electromagnetic propagation such as point-to-point microwave communication, terrestrial radio and ...
O.J. Abimbola   +5 more
doaj   +1 more source

Degeneration Effects of Thin-Film Sensors after Critical Load Conditions of Machine Components

open access: yesMachines, 2022
In the context of intelligent components in industrial applications in the automotive, energy or construction sector, sensor monitoring is crucial for security issues and to avoid long and costly downtimes.
Rico Ottermann   +3 more
doaj   +1 more source

Determination of radio wave propagation conditions in the atmosphere of Hanoi using the radiosonde data of balloons

open access: yesICT Express, 2022
This article uses radiosonde data of balloons in Hanoi to determine the radio refractive index and the conditions of radio wave propagation in the atmosphere.
Chi Cong Pham, Xuan Anh Nguyen
doaj   +1 more source

Design and Implementation of an Analog Controller Based on K-Factor Design Method for a Novel Isolated Z-Source DC-DC Converter with High Voltage Gain

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2021
In this study, an analog controller design and implementation are performed by using the Kfactor design method for a novel isolated Z-source dc-dc converter with high voltage gain.
Enes TURAN   +3 more
doaj   +1 more source

Biodistribution and respiratory toxicity of chloromethylisothiazolinone/methylisothiazolinone following intranasal and intratracheal administration

open access: yesEnvironment International, 2022
A variety of isothiazolinone-containing small molecules have been registered and used as chemical additives in many household products. However, their biodistribution and potential harmful effects on human health, especially respiratory effects, were not
Mi-Kyung Song   +9 more
doaj   +1 more source

Improved design of LED lamp circuit to enhance distribution transformer capability based on a comparative study of various standards

open access: yesEnergy Reports, 2022
Nowadays, light-emitting diode (LED) lamps replaced the conventional types because of its higher brightness and lower energy consumption. The lamps represent about 20% of the total load all over the world.
Tamer F. Megahed, Mohamed F. Kotb
doaj   +1 more source

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