Results 11 to 20 of about 35,213 (236)

Contactless single point incremental forming: Experimental and numerical simulation [PDF]

open access: yes, 2023
The demand for small-batch manufacturing processes has increased considerably in recent years due to the need for personalized and customized products. Single Point Incremental Forming (SPIF) has emerged as a time-efficient approach that offers increased
Almadani, M.   +4 more
core   +1 more source

Hot-air contactless single-point incremental forming [PDF]

open access: yes, 2023
Single-point incremental forming (SPIF) has emerged as a time-efficient approach that offers increased material formability compared to conventional sheet-metal forming techniques.
Almadani, M.   +3 more
core   +1 more source

Contactless Services [PDF]

open access: yes, 2022
Contactless services have become a common way for public libraries to provide services. As a result, the strategy used by public libraries in China will effectively stop the spread of epidemics caused by human touch and will serve as a model for other ...
Yan Quan Liu   +9 more
core   +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.
Little, Nicholas   +7 more
core   +1 more source

High-voltage capacitively coupled contactless conductivity detection for conventional and microchip capillary electrophoresis [PDF]

open access: yes, 2004
This thesis focuses on the optimisation of capacitively coupled contactless conductivity detection for capillary and microchip electrophoresis and its applications in analytical chemistry.
Langholz-Tanyanyiwa, Jatisai
core   +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

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

Unsupervised Detection of Multiple Sleep Stages Using a Single FMCW Radar

open access: yesApplied Sciences, 2023
The paper proposes a unsupervised method for detecting the three stages of sleep—wake, rapid eye movement (REM) sleep, and non-REM sleep—using biosignals obtained from a 61 GHz single frequency modulated continuous wave (FMCW) radar.
Young-Keun Yoo   +2 more
doaj   +1 more source

Analysis of thermal characteristics with multi-physicsc oupling for the feed system of a precision CNC machine tool [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences
The machining accuracy of CNC machine tools is significantly affected by the thermal deformation of the feed system. The ball screw feed system is extensively used as a transmission component in precise CNC machine tools, responsible for converting ...
Junjian Zheng   +7 more
doaj   +1 more source

Supporting data for "Shaping contactless radiation forces through anomalous acoustic scattering"

open access: yes, 2022
The data set includes the experimental and simulation data for the article, Shaping contactless radiation forces through anomalous acoustic scattering.Waves impart momentum and exert force on obstacles in their path.
Luo, Yujie   +3 more
core   +1 more source

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