Results 11 to 20 of about 12,784 (283)

Inertial measures of motion for clinical biomechanics: comparative assessment of accuracy under controlled conditions - effect of velocity. [PDF]

open access: yesPLoS ONE, 2013
Inertial measurement of motion with Attitude and Heading Reference Systems (AHRS) is emerging as an alternative to 3D motion capture systems in biomechanics.
Karina Lebel   +3 more
doaj   +1 more source

A New Perspective on Low-Cost MEMS-Based AHRS Determination

open access: yesSensors, 2021
Attitude and heading reference system (AHRS) is the term used to describe a rigid body’s angular orientation in three-dimensional space. This paper describes an AHRS determination and control system developed for navigation systems by integrating ...
Neda Navidi, Rene Landry
doaj   +1 more source

Differences between adiposity indicators for predicting all-cause mortality in a representative sample of United States non-elderly adults. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND: Adiposity predicts health outcomes, but this relationship could depend on population characteristics and adiposity indicator employed. In a representative sample of 11,437 US adults (National Health and Nutrition Examination Survey, 1988-1994,
Henry S Kahn   +3 more
doaj   +1 more source

New advances in the computational simulation of Aqueous Homogeneous Reactor for medical isotopes production

open access: yesBrazilian Journal of Radiation Sciences, 2021
Aqueous Homogeneous Reactors (AHRs) or simply solution reactors present nowadays a promising alternative to produce medical isotopes, especially 99Mo. The AHR medical production concept has been proposed to produce medical isotopes directly in the fuel ...
Daniel Milian Pérez   +5 more
doaj   +1 more source

Attitude Calculation of AHRS Based on Geomagnetic Field Adaptive Correction

open access: yesXibei Gongye Daxue Xuebao, 2019
In the attitude and heading reference system (AHRS), the output noise of MEMS gyroscope is too large, zero drift can not be eliminated completely, and the output of angular rate is easy to be interfered, which leads to low accuracy and large accumulated ...

doaj   +1 more source

Novel battery model of an all-electric personal rapid transit vehicle to determine state-of-health through subspace parameter estimation and a Kalman Estimator [PDF]

open access: yes, 2008
--The paper describes a real-time adaptive battery model for use in an all-electric Personal Rapid Transit vehicle. Whilst traditionally, circuit-based models for lead-acid batteries centre on the well-known Randles’ model, here the Randles’ model is
Bentley, P   +3 more
core   +1 more source

Association Between Air Pollution and the Risk of Uveitis: A Nationwide, Population-Based Cohort Study

open access: yesFrontiers in Immunology, 2021
Previous studies have revealed an association between ocular surface disorders and air pollution, few studies have focused on the risk of uveitis. We aimed to investigate whether air pollution increases the risk of uveitis.
Yi-Chiao Bai   +9 more
doaj   +1 more source

AUV SLAM and experiments using a mechanical scanning forward-looking sonar [PDF]

open access: yes, 2012
Navigation technology is one of the most important challenges in the applications of autonomous underwater vehicles (AUVs) which navigate in the complex undersea environment.
ArulamPalam   +29 more
core   +4 more sources

An Intuitive Approach to Inertial Sensor Bias Estimation [PDF]

open access: yes, 2013
A simple approach to gyro and accelerometer bias estimation is proposed. It does not involve Kalman filtering or similar formal techniques. Instead, it is based on physical intuition and exploits a duality between gimbaled and strapdown inertial systems.
Tereshkov, Vasiliy M.
core   +3 more sources

Hydroxychloroquine on the Pulmonary Vascular Diseases in Interstitial Lung Disease: Immunologic Effects, and Virus Interplay

open access: yesBiomedicines, 2022
To investigate the effects of hydroxychloroquine (HCQ) drug use on the risk of pulmonary vascular disease (PVD) in an interstitial lung disease cohort (ILD cohort, ILD+ virus infection), we retrospectively enrolled the ILD cohort with HCQ (HCQ users, N =
Jun-Jun Yeh   +7 more
doaj   +1 more source

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