Results 101 to 110 of about 123,667 (246)

Degradable and Printed Microstrip Line for Chipless Temperature and Humidity Sensing

Advanced Electronic Materials, Volume 10, Issue 11, November 2024.
This study presents a biodegradable printed microstrip line with multi‐resonance for temperature and relative humidity monitoring. Zinc printed on paper encapsulated with beeswax serves as the radio‐frequency transducer. Two resonators at 1.2 and 2 GHz are used to sense temperature and humidity, respectively.
James Bourely, Jaemin Kim, Christian Beyer, Oleksandr Vorobyov, Xavier Aeby, Gustav Nyström, Danick Briand   +6 more
wiley   +1 more source

A Flexible UHF RFID Respiratory Sensor

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Abstract In this study, we developed a Radio Frequency Identification (RFID) sensor to monitor respiratory rates. The sensor utilizes a passive RFID tag enhanced with a metamaterial-inspired structure to boost its maximum gain value. This gain increased from -0.39 dBi to 0.57 dBi. Monitoring of the respiratory rate was conducted by analyzing variations
Jéssyca I. L. Araujo, Georgina K. F. Serres, Simone Genovesi, Danilo F. S. Santos, Alexandre J. R. Serres   +4 more
openaire   +2 more sources

Wisent: Robust Downstream Communication and Storage for Computational RFIDs

, 2016
Computational RFID (CRFID) devices are emerging platforms that can enable perennial computation and sensing by eliminating the need for batteries. Although much research has been devoted to improving upstream (CRFID to RFID reader) communication rates ...
Parks, Aaron, Pawełczak, Przemysław, Smith, Joshua R., Tan, Jethro   +3 more
core   +1 more source

Tracking Small Animals in Complex Landscapes: A Comparison of Localisation Workflows for Automated Radio Telemetry Systems

Ecology and Evolution, Volume 14, Issue 10, October 2024.
Automated radio telemetry grids provide the possibility of studying movement of small animals at very fine spatial scales, but the influence of rugged terrains and vegetation on localisation error curtails the applicability of this technology. In this study, we present a comparative workflow to reduce error and show how selecting higher radio signal ...
Cristina Rueda‐Uribe, Alyssa J. Sargent, María Ángela Echeverry‐Galvis, Pedro A. Camargo‐Martínez, Isabella Capellini, Lesley T. Lancaster, Alejandro Rico‐Guevara, Justin M. J. Travis   +7 more
wiley   +1 more source

Polydimethylsiloxane Substrates for passive UHFRFID Sensors [PDF]

, 2014
PDMS has previously shown to be a suitable substrate for UHF-RFID strain sensor tags due to their elastomer characteristics. However, PDMS has further properties such as polymer swelling which could be utilized in gas sensing.
Batchelor, John C., Holder, Simon J., Rakibet, Osman Özgür, Rumens, C.V.   +3 more
core  

Design of vehicle positioning system based on artificial intelligence cloud computing technology

IET Wireless Sensor Systems, Volume 14, Issue 5, Page 209-222, October 2024.
Vehicle positioning is an important part of intelligent transportation system research. In the tunnel environment, the GPS signal is blocked, which leads to the decrease or even failure of the vehicle positioning accuracy. In order to solve the problem of vehicle positioning in this environment, various vehicle positioning technologies emerge as the ...
Jifeng Liang
wiley   +1 more source

Tahap penguasaan, sikap dan minat pelajar Kolej Kemahiran Tinggi MARA terhadap mata pelajaran Bahasa Inggeris [PDF]

, 2015
Kajian ini dilakukan untuk mengenal pasti tahap penguasaan, sikap dan minat pelajar Kolej Kemahiran Tinggi Mara Sri Gading terhadap Bahasa Inggeris. Kajian yang dijalankan ini berbentuk deskriptif atau lebih dikenali sebagai kaedah tinjauan.
Kamsur, Nadzalinda
core  

SysMART Indoor Services: A System of Smart and Connected Supermarkets

, 2019
Smart gadgets are being embedded almost in every aspect of our lives. From smart cities to smart watches, modern industries are increasingly supporting the Internet of Things (IoT).
Damaj, Issam, Makdessi, Majd, Mohamad, Yazan, Raad, Omar   +3 more
core   +1 more source

Pseudo-random Aloha for Enhanced Collision-recovery in RFID

, 2012
In this letter we motivate the need to revisit the MAC protocol used in Gen2 RFID system in order to leverage receiver structures with Collision Recovery capabilities at the PHY layer.
Castiglione, Paolo, Ricciato, Fabio
core   +1 more source

RFID Antenna for UHF Band [PDF]

Carpathian Journal of Electronic and Computer Engineering, 2019
Abstract This paper presents a method to increase the detection range for RFID readers in the UHF radio band. The design is following especially the ISO 18000-6C standardization demands for the UHF band, operating from 865 to 868 MHz in Europe and from 902 to 928 MHz in North America.
openaire   +1 more source