Results 11 to 20 of about 2,248,056 (273)

Fundamental Values of Length, Time, and Speed

open access: yesReports in Advances of Physical Sciences, 2020
In 2018, it was shown that the electromagnetic units of the MKSA system (the ampere, coulomb, ohm, volt, etc.) can be written using the base units of the MKS system: the meter (m), kilogram (kg) and second (s).
Askar Abdukadyrov
doaj   +1 more source

Assessing inertial measurement unit locations for freezing of gait detection and patient preference

open access: yesJournal of NeuroEngineering and Rehabilitation, 2022
Background Freezing of gait, a common symptom of Parkinson’s disease, presents as sporadic episodes in which an individual’s feet suddenly feel stuck to the ground.
Johanna O’Day   +7 more
doaj   +1 more source

Determination of Zakat Nisab for Agricultural Products According to Today’s Units of Measurement

open access: yesDarulfunun Ilahiyat, 2022
A condition required for zakat obligation (an obligatory alms-giving in Islam) is that the goods subject to zakat should reach a certain amount (nisab). The nisab of agricultural products, which are among the zakat goods, was determined by the old volume
Abdulmelik Kutluay
doaj   +1 more source

Measurement of respiratory rate with inertial measurement units

open access: yesCurrent Directions in Biomedical Engineering, 2020
Demographic changes and increasing air pollution entail that monitoring of respiratory parameters is in the focus of research. In this study, two customary inertial measurement units (IMUs) are used to measure the breathing rate by using quaternions. One
Beck Simon   +3 more
doaj   +1 more source

Characterization of Inertial measurement units using sine-on-random vibration test

open access: yesMeasurement: Sensors, 2021
Inertial Measurement Units (IMUs) are currently employed in devices used every day. Among these, there are smartphones, vehicles, drones, robots, and many others.
Domenico Capriglione   +8 more
doaj   +1 more source

In Vivo Measurement of Wrist Movements during the Dart-Throwing Motion Using Inertial Measurement Units

open access: yesSensors, 2021
Background: This study investigates the dart-throwing motion (DTM) by comparing an inertial measurement unit-based system previously validated for basic motion tasks with an optoelectronic motion capture system.
Gabriella Fischer   +3 more
doaj   +1 more source

Optimal allocation of phasor measurement units in distribution power systems

open access: yesAlexandria Engineering Journal, 2022
Phasor measurement unit (PMU) is deemed a pivotal tool in wide-area monitoring, protection, and control of power systems. The optimal allocation of PMUs has recently received more attention.
Abdelfattah A. Eladl   +4 more
doaj   +1 more source

Quantification of Error Sources with Inertial Measurement Units in Sports

open access: yesSensors, 2022
Background: Inertial measurement units (IMUs) offer the possibility to capture the lower body motions of players of outdoor team sports. However, various sources of error are present when using IMUs: the definition of the body frames, the soft tissue ...
Haye Kamstra   +2 more
doaj   +1 more source

Data envelopment analysis in performance measurement: a critical analysis of the literature [PDF]

open access: yesProblems and Perspectives in Management, 2016
This study examines the benefits of data envelopment analysis (DEA) in evaluating the performance of decision making units (DMUs). DEA is a mathematical programming tool applied in performance measurement.
Patricia Shewell, Stephen Migiro
doaj   +1 more source

Evaluation of L2 Listening Comprehension: In Pursuit of New Measurement Units

open access: yesПсихолінгвістика, 2023
Purpose. Second language (L2) listening comprehension remains one of the most under researched problems in field largely due to the corresponding methodological difficulties. This study focuses on the development of such a measurement unit that considers
Віталій Шимко
doaj   +1 more source

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