Results 11 to 20 of about 2,439,631 (288)

Measurement Units in R [PDF]

open access: yesThe R Journal, 2016
We briefly review SI units, and discuss R packages that deal with measurement units, their compatibility and conversion. Built upon udunits2 and the UNIDATA udunits library, we introduce the package units that provides a class for maintaining unit metadata.
Pebesma, Edzer   +2 more
openaire   +3 more sources

The Units Ontology: a tool for integrating units of measurement in science. [PDF]

open access: yesDatabase (Oxford), 2012
Units are basic scientific tools that render meaning to numerical data. Their standardization and formalization caters for the report, exchange, process, reproducibility and integration of quantitative measurements.
Gkoutos GV, Schofield PN, Hoehndorf R.
europepmc   +2 more sources

Units of measurement and the inverse hyperbolic sine transformation

open access: yesEconometrics Journal, 2020
The inverse hyperbolic sine (IHS) transformation is frequently applied in econometric studies to transform right-skewed variables that include zero or negative values.
G. B. Aïhounton, Arne Henningsen
semanticscholar   +1 more source

Validation and Assessment of a Posture Measurement System with Magneto-Inertial Measurement Units

open access: yesSensors, 2021
Inappropriate posture and the presence of spinal disorders require specific monitoring systems. In clinical settings, posture evaluation is commonly performed with visual observation, electrogoniometers or motion capture systems (MoCaps).
Davide Paloschi   +7 more
doaj   +1 more source

Fundamental Units of Measurement and Extra Dimensions

open access: yesAdvances in High Energy Physics, 2022
The space available to our perception is three-dimensional with full evidence. The development of physics led to the hypothesis of extra dimensions. It is believed that an important role in the unification of physics should play by the Planck units of ...
Askar Abdukadyrov
doaj   +1 more source

Effect of IMU location on estimation of vertical ground reaction force during jumping

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Introduction: Several investigations have examined utilizing inertial measurement units (IMU) to estimate ground reaction force (GRF) during exercise. The purpose of this investigation was to determine the effect of inertial measurement units location on
Jordan A. Kerns   +4 more
doaj   +1 more source

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

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