Results 41 to 50 of about 35,213 (236)

Non-Contact Heart Rate and Respiration Rate Monitoring for Elderly Care

Current Directions in Biomedical Engineering
As the nursing shortage in Germany continues to intensify, the necessity for user-friendly assistance systems is becoming increasingly important. This paper describes an approach for the automatic and regular recording of vital signs using consumer-grade
Kobel Svenja Nicola, Önel Hüseyin, Reßing Caroline, Wiede Christian, Seidl Karsten   +4 more
doaj   +1 more source

IoT Fog-Enabled Multi-Node Centralized Ecosystem for Real Time Screening and Monitoring of Health Information

Applied Sciences, 2022
In today’s technological and stressful world, when everyone is busy in their daily routines and places blind faith in pharmaceutical advancements to protect their health, the sudden, horrifying effects of the COVID-19 pandemic have resulted in serious ...
Vikas Khullar, Harjit Pal Singh, Yini Miro, Divya Anand, Heba G. Mohamed, Deepali Gupta, Navdeep Kumar, Nitin Goyal   +7 more
doaj   +1 more source

Contactless Planar Actuator with Manipulator [PDF]

, 2007
The accuracy and reliability of high-precision machines is compromised by friction and disturbances due to cables to moving machine parts. These problems can be solved by applying three contactless techniques in one system: contactless generation of ...
Jeroen de Boeij, Boeij, de, J., Duarte, J.L.; id_orcid, Elena Lomonova, Lomonova, E.A.; id_orcid, Vandenput, A.J.A., Vandenput, AJA André, Jorge L. Duarte, Lomonova, E.A., Duarte, JL Jorge, Duarte, J.L., Lomonova, E Elena, Andre J.A. Vandenput, Boeij, J Jeroen de   +13 more
core   +2 more sources

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source

Grayscale Photomasks Enable Noncontact Optical Patterning of Hydroxypropyl Cellulose Gels for Dynamic Art

Advanced Functional Materials, EarlyView.
Mask‐encoded UV exposure translates digital color information into pixel‐resolved structural‐color patterns in hydroxypropyl cellulose gels. Gaussian‐process‐guided calibration links UV processing conditions, wavelength, and mask opacity, enabling parallel fabrication of multicolor images in a single 10 s exposure.
Mengting Ye, Yunyi Zhu, Sai Sabareesh KS, Md Ashiqur Rahman Alif, Yichen Wan, Ruobing Bai, Narges Pourjafarian, Stefanie Mueller, Hongli Zhu   +8 more
wiley   +1 more source

Inductively Expandable Supraparticles as Microscopic Force Generators for Remote Mechanical Actuation

Advanced Materials, EarlyView.
This study demonstrates the combination of magnetic nanoparticles and functional blowing agents into supraparticles. Upon induction heating, they actuate via rapid gas generation or extensive volume expansion. These supraparticles lift up to 25 000 times their own mass and rapidly open cured epoxy resins, providing a versatile strategy for fast micron ...
Leoni Luthardt, Stephan Müssig, Robert Luxenhofer, Karl Mandel   +3 more
wiley   +1 more source

Contactless Buttons [PDF]

, 2014
Tato bakalářská práce se zabývá problematikou bezkontaktních tlačítek a jejich srovnáním s dotykovými tlačítky a jejich využitím. Především se věnuje jednotlivým typům dotykových a bezdotykových tlačítek a principu jejich fungování.
Jalovecký, Lukáš
core   +2 more sources

Proof of Concept for measuring vital signs using UWB transceivers

Current Directions in Biomedical Engineering
This paper shows the possibility of using Ultrawideband (UWB) DW3000 transceivers for noninvasive vital sign monitoring via a transversal propagation method.
Egemann Noel, Kitzig Andreas, Naroska Edwin   +2 more
doaj   +1 more source

Long Range Electricity Control System for Post- Paid Electricity Meter with Power Line Carrier Communication

Jurnal Elkomika, 2022
ABSTRAK Pelanggan yang menunggak tagihan listrik berkali-kali akan diberikan tindakan disiplin oleh penyedia jasa kelistrikan berupa pemutusan aliran listrik. Maka dari itu dibutuhkan sistem pemutusan listrik contactless jarak jauh.
DINI RAHMAWATI, NANJAR SYABANUL FAJAR, SABAR PRAMONO   +2 more
doaj   +1 more source