Results 61 to 70 of about 1,690,508 (249)

Bing! New chair pad sounds alarm after prolonged sitting [PDF]

open access: yes, 2012
First paragraph: Researchers have developed a new office chair “sitting pad” that sounds an alarm when its owner has been sitting too long. Read this article on The Conversation website: https://theconversation.com/bing-new-chair-pad-sounds ...
Ryde, Gemma, Thorp, Alicia
core  

Spectrum comparison of selected heart sounds and LPC filters.

open access: yes, 2014
Presented curves demonstrate the effectiveness of the modified LPC algorithm in estimating different heart sounds.
Aleksander Palkowski (5251663)   +2 more
core   +1 more source

Perceived Time Shapes Physical Fatigue Accumulation and Its Neural Oscillatory Correlates

open access: yesAdvanced Science, EarlyView.
Can a clock change the course of physical fatigue? By covertly manipulating the clock calibration during repeated isometric contractions, we showed that perceived time shapes fatigue accumulation and frontal oscillatory dynamics. While fatigue accumulation was only reduced when the clock was slowed down, frontal oscillatory dynamics followed perceived ...
Pierre‐Marie Matta   +3 more
wiley   +1 more source

Electronic Chip‐Mimetic Medical Implants for Controllable Sonothermal Treatments

open access: yesAdvanced Science, EarlyView.
Inspired by the thermal effect of working electronic chips, which consist of various heterostructures, an sonothermal‐responsive platform has been developed through constructing metal‐semiconductor interface on implants. Biofilm infection and deep vein thrombosis can be successfully treated by controllable ultrasound treatments.
Zhengdong Zhang   +10 more
wiley   +1 more source

Assessing methods of Normal heart sounds

open access: yesنشریه پرستاری ایران, 1989
Listen to the heart sounds gives us valuable information about existence of disorder in heart rate and rhythm, ventricular fibrillation and movement of blood through valves. This required a lot of skills.
Salemi S
doaj  

Early diagnosis of acyanotic congenital heart disease using fused feature based hybrid model with Bahdanau attention mechanism

open access: yesArray
Critical information about congenital heart diseases can be obtained from heart sounds. Heart sounds act as a diagnostic indicator for heart health. Heart disease detection from heart sounds is a low-cost, non-invasive diagnostic method.
Ann Nita Netto   +4 more
doaj   +1 more source

Digital Subtraction Phonocardiography (DSP) applied to the detection and characterization of heart murmurs

open access: yesBioMedical Engineering OnLine, 2011
Background During the cardiac cycle, the heart normally produces repeatable physiological sounds. However, under pathologic conditions, such as with heart valve stenosis or a ventricular septal defect, blood flow turbulence leads to the production of ...
Ali Akbari Mohammad   +6 more
doaj   +1 more source

Self‐Sustaining Sensing Systems: Integration Strategies and Signal–Power Matching in Energy‐Harvesting Electronics

open access: yesAdvanced Science, EarlyView.
Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park   +5 more
wiley   +1 more source

A Novel Method for Measuring the Timing of Heart Sound Components through Digital Phonocardiography

open access: yesSensors, 2019
The auscultation of heart sounds has been for decades a fundamental diagnostic tool in clinical practice. Higher effectiveness can be achieved by recording the corresponding biomedical signal, namely the phonocardiographic signal, and processing it by ...
Noemi Giordano, Marco Knaflitz
doaj   +1 more source

A Recyclable and Biodegradable High‐Performance Piezoelectric Nanogenerator for Self‐Powered Biosensing and Assistive Human‐Machine Interaction

open access: yesAdvanced Science, EarlyView.
By exploiting multiscale hydrogen‐bonding interactions between HFPD and TOCNF, the composite simultaneously achieves a high piezoelectric coefficient (14.0 pC·N−1), outstanding flexibility (100 000 bending cycles), water‐assisted recyclability, excellent biodegradability, and sensitive wearable/implantable sensing for motion, speech, and Morse code ...
Tingshuai Luo   +9 more
wiley   +1 more source

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