Results 11 to 20 of about 63,816 (258)

Layer thickness measurement of technically anodised aluminium surfaces by using goniometric scattered light [PDF]

open access: yesMetrology and Measurement Systems, 2021
In recent years, scattered light measurement technology has developed into a common method for measuring roughness, form and waviness on precision machined surfaces.
Tobias Geisler, Martin Manns
doaj   +1 more source

Risks of Offline Verify PIN on Contactless Cards [PDF]

open access: yes, 2013
Contactless card payments are being introduced around the world al- lowing customers to use a card to pay for small purchases by simply placing the card onto the Point of Sale terminal.
Arief, Budi   +3 more
core   +1 more source

Contactless Optical Liquid Identifier

open access: yesACS Omega, 2023
This paper presents the development of a portable device that can be used for liquid identification using the concept of Beer-Lambert law. The final device can recognize up to 30 different materials in their liquid state and provides some other useful features that can enhance its operation.
Yusra Obeidat   +2 more
openaire   +3 more sources

Towards Objective Quantification of Hand Tremors and Bradykinesia Using Contactless Sensors: A Systematic Review

open access: yesFrontiers in Aging Neuroscience, 2021
Assessing the progression of movement disorders such as Parkinson's Disease (PD) is key in adjusting therapeutic interventions. However, current methods are still based on subjective factors such as visual observation, resulting in significant inter ...
Augusto Garcia-Agundez, Carsten Eickhoff
doaj   +1 more source

Research on Non-Contact Voltage Measurement Method Based on Near-End Electric Field Inversion

open access: yesEnergies, 2023
Aiming at the problems of complex equations, low accuracy, and the strict measurement point layout requirements of the existing electric field integration method, a non-contact measurement method based on the inversion voltage of the near electric field ...
Shangpeng Sun   +6 more
doaj   +1 more source

Contactless object manipulation using multiple air jets on planar surface (Experimental case studies for small control range with continuous air jets)

open access: yesNihon Kikai Gakkai ronbunshu, 2014
We propose a technology for manipulating the position and attitude of an object on a planar surface in a contactless manner. This technology involves multiple ejectors that stream jets of compressed air onto an object from various directions.
Tsubasa MATSUSHITA   +8 more
doaj   +1 more source

Speckle Vibrometry for Instantaneous Heart Rate Monitoring

open access: yesSensors, 2023
Instantaneous heart rate (IHR) has been investigated for sleep applications, such as sleep apnea detection and sleep staging. To ensure the comfort of the patient during sleep, it is desirable for IHR to be measured in a contact-free fashion.
Shuhao Que   +6 more
doaj   +1 more source

Investigations with various inner shielding distance tests for a novel coupler-based CPT system applied for electric vehicles using electromagnetic resonant coupling and aluminium shielding material [PDF]

open access: yes, 2020
Contactless power transfer (CPT) technology development has been driven rapidly over the past decade by the world-wide trends towards new energy explorations, and numerous reports have been presented in this area.
Duan, J, Wang, W
core   +1 more source

Towards Contactless Patient Positioning [PDF]

open access: yesIEEE Transactions on Medical Imaging, 2020
The ongoing COVID-19 pandemic, caused by the highly contagious SARS-CoV-2 virus, has overwhelmed healthcare systems worldwide, putting medical professionals at a high risk of getting infected themselves due to a global shortage of personal protective equipment. This has in-turn led to understaffed hospitals unable to handle new patient influx.
Karanam, Srikrishna   +5 more
openaire   +2 more sources

PTT-based Contact-less Blood Pressure Measurement using an RGB-Camera

open access: yesCurrent Directions in Biomedical Engineering, 2021
Commonly used blood pressure measurement devices have noticeable limitations in accuracy, measuring time, comfort or safety. To overcome these limitations, we developed and tested a surrogate-based, non-invasive blood pressure measurement method using an
Wuerich Carolin   +3 more
doaj   +1 more source

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