Results 131 to 140 of about 1,387,086 (314)

Hydrogel Stack‐Tailored Logics and High‐Fidelity Multimodal Sensors Promoted by Precisely Evaluated Ionic Migration

open access: yesAdvanced Science, EarlyView.
Inspired by biological ion transport, this work introduces self‐powered multifunctional sensors utilizing tailored hydrogel stacks. Optimizing ionic migration with MXenes and carbon nanotubes achieves high‐performance energy harvesting and unique logic circuit functionality.
Haoran Chen   +9 more
wiley   +1 more source

Low-Cost Bluetooth Low Energy Positioning and Timing System for Sports Events

open access: yesProceedings, 2017
Timing points used in running races and other competition events are generally based on radio-frequency identification (RFID) technology. [...]
Ángela Hernández   +3 more
doaj   +1 more source

Evaluating interference in Bluetooth classic and Bluetooth low energy technology [PDF]

open access: yes, 2017
Applied project submitted to the Department of Computer Science, Ashesi University College, in partial fulfillment of Bachelor of Science degree in Computer Science, April 2017Wireless communication is one of the dominant discoveries to mankind ...
Takyi-Yeboah, Jeffrey
core  

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

open access: yesAdvanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

INDOOR POSITIONING WITH BLUETOOTH LOW ENERGY AND EXTENDED KALMAN FILTER

open access: yesЕлектроніка та інформаційні технології
Background. Indoor positioning systems based on Bluetooth Low Energy (BLE) beacons widely rely on estimating distance using the received signal strength indicator (RSSI).
Tadei-Nazarii Kalynchuk
doaj   +1 more source

Embedded Direct‐Written Organic Micro‐TEGs for High‐Efficiency Skin‐Heat Harvesting

open access: yesAdvanced Electronic Materials, EarlyView.
A finite‐element–guided design of direct‐written organic micro‐thermoelectric generators is presented for efficient skin‐heat harvesting. Embedding PEDOT:PSS/PBFDO thermoelectric legs within flexible substrates suppresses interfacial heat losses and enhances vertical heat flow.
Milad Jabri   +4 more
wiley   +1 more source

Reevaluating Bluetooth Low Energy for Ingestible Electronics

open access: yesCoRR
Bluetooth Low Energy (BLE) has been widely adopted in wearable devices; however, it has not been widely used in ingestible electronics, primarily due to concerns regarding severe tissue attenuation at the 2.4 GHz band. In this work, we systematically reevaluate the feasibility of BLE for ingestible applications by benchmarking its performance against ...
Ziyao Zhou   +6 more
openaire   +2 more sources

Energy consumption optimization system for a smart house based on Bluetooth Low Energy technology

open access: yes, 2019
Дана робота присвячена дослідженню Smart Home систем, що базуються на основі різних протоколів бездротового зв’язку, та розробці системи оптимізації енергоспоживання для розумного дому.
Камаєв, Василь Романович
core  

Bluetooth Low Energy IOT sovelluksessa : Kotlin sovellus Android Studiolla [PDF]

open access: yes, 2020
Tässä opinnäytetyössä aion tutkia miten Bluetooth Low Energy toimii ja miten hyödyllinen se on IOT ympäristössä. Ideana on tehdä Kotlin ohjelmointikielellä mobiilisovellus Android puhelimeen, jolla voidaan kontrolloida Bluetooth LE hehkulamppua ja lukea ...
Varpula, Teemu
core  

Self‐Adhesive Conductive Elastomers for Gel‐Free Biopotential Recording

open access: yesAdvanced Electronic Materials, EarlyView.
σPOMaC, a self‐adhesive conductive citrate elastomer incorporating PEDOT:PSS and DBSA, enables gel‐free biopotential electrodes with stable conductivity and intrinsic skin adhesion. The composite exhibits low resistivity (∼ 0.02 Ω·cm), robust electrical performance during repeated use, and reliable on‐body ECG acquisition comparable to Ag/AgCl ...
Kirstie M. K. Queener   +7 more
wiley   +1 more source

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