Results 41 to 50 of about 2,502,268 (205)

A CONTACTLESS POWER STATION FOR CELLULAR BATTERY CHARGER [PDF]

, 2010
A Contactless Power Station (CLPS) is a new breakthrough to transmit power without wires in electronic devices such as cellular phones. Power transfer capability of a CPLS system can be increased if the system is designed to operate under resonance ...
Pekik Argo, Dahono
core  

Harnessing contactless monitoring technology for sows and piglets within farrowing pens: A critical review

Smart Agricultural Technology
Global pig production continues to expand in response to increasing demand for meat, placing greater emphasis on improving production efficiency, pig health, and welfare.
Zheng He, Mahejabeen Hossain Nidhi, Zhaojin Guo, Li Lyu, Chuanyi Guo, Junhui Hou, Xiaoshuai Wang, Kai Liu   +7 more
doaj   +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

Intelligent wireless walls for contactless in-home monitoring

Light: Science & Applications, 2022
This work proposes a concept of intelligent wireless walls (IWW) to ensure high-precision activity monitoring in complex environments, namely corridor junction scenario and multi-floor ...
Muhammad Usman, James Rains, Tie Jun Cui, Muhammad Zakir Khan, Jalil ur Rehman Kazim, Muhammad Ali Imran, Qammer H. Abbasi   +6 more
doaj   +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

Contactless radar and RF health monitoring

, 2020
Contactless radar and radio frequency (RF) sensing has recently gained much interest in the domain of health care and assisted living, due to its capability to monitor relevant parameters for the health and well‐being of people.
Fioranelli, Francesco, Julien Le Kernec, Francesco Fioranelli, Le Kernec, Julien   +3 more
core   +1 more source

Contactless Stethoscope Enabled by Radar Technology

Bioengineering, 2023
Contactless vital sign measurement technologies have the potential to greatly improve patient experiences and practitioner safety while creating the opportunity for comfortable continuous monitoring.
Isabella Lenz, Yu Rong, Daniel Bliss
doaj   +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

Deep learning and remote photoplethysmography powered advancements in contactless physiological measurement

Frontiers in Bioengineering and Biotechnology
In recent decades, there has been ongoing development in the application of computer vision (CV) in the medical field. As conventional contact-based physiological measurement techniques often restrict a patient’s mobility in the clinical environment, the
Wei Chen, Zhe Yi, Lincoln Jian Rong Lim, Lincoln Jian Rong Lim, Rebecca Qian Ru Lim, Aijie Zhang, Zhen Qian, Jiaxing Huang, Jiaxing Huang, Jia He, Jia He, Bo Liu, Bo Liu   +12 more
doaj   +1 more source

Large‐Scale and Cost‐Effective Fabrication of Ultra‐Thin, Biodegradable Microelectrode Arrays and Pressure Sensors Using Laser Micromachining

Advanced Materials Technologies, EarlyView.
A mask‐free and cost‐effective UV‐pico‐second laser‐based microfabrication method is proposed to fabricate large‐area biodegradable microelectrode arrays and pressure sensors. These devices demonstrate low impedance, good conformability, excellent biocompatibility, and rapid degradation, providing a new route for next‐generation transient electronics ...
Bhavani Prasad Yalagala, Asfand Tanwear, María Cerezo‐Sánchez, Hossein Parvizi, Morteza Amjadi, Hadi Heidari   +5 more
wiley   +1 more source