Results 41 to 50 of about 744,394 (193)

A Self-Powered Electrochemical Sensor Based on a Zinc-Air Battery for Oxygen Detection

open access: yesECS Sensors Plus
Oxygen sensors have been widely applied in our daily lives and industries. Traditional oxygen sensor needs to be operated at high temperatures and often use lead (Pb) as the electrode, which is toxic to human health.
Tianyi Liu   +6 more
doaj   +1 more source

Experimental and Theoretical Investigation of Lowering the Band Gaps of Phononic Crystal Beams through Fluid-Solid Coupling

open access: yesCrystals, 2017
We experimentally and theoretically investigate the band-gap and transmission properties of phononic crystal (PC) beams immersed in water. Spectral element method (SEM) is developed for theoretical analysis in which the hydrodynamic loading is taken into
Xiang Fang   +3 more
doaj   +1 more source

Investigating IoT Middleware Platforms for Smart Application Development

open access: yes, 2019
With the growing number of Internet of Things (IoT) devices, the data generated through these devices is also increasing. By 2030, it is been predicted that the number of IoT devices will exceed the number of human beings on earth. This gives rise to the
A Al-Fuqaha   +7 more
core   +1 more source

Faulty sensor detection mechanism using multi-variate sensors in IoT [PDF]

open access: yes, 2019
Internet of Thing (IoT) becoming increasingly popular over the past few years because it can be implemented in many applications such as smart cities, smart agriculture, smart health, smart home and etc.
Al-Atrakchii, Khaldoon Ammar
core   +1 more source

Printing of wirelessly rechargeable solid-state supercapacitors for soft, smart contact lenses with continuous operations [PDF]

open access: yes, 2019
Recent advances in smart contact lenses are essential to the realization of medical applications and vision imaging for augmented reality through wireless communication systems.
Ahn, David B.   +6 more
core   +2 more sources

Review—Recent Progress in Materials Development for Electrochemical Gas Sensors

open access: yesECS Sensors Plus
Gas sensors are critical in detecting various gases across industrial, environmental, and healthcare applications. Among them, electrochemical gas sensors stand out due to their high sensitivity, selectivity, and portability.
Kening Lang   +7 more
doaj   +1 more source

Large electrocaloric effect obtained in Ba(SnxTi1−x)O3 lead-free ceramics using direct and indirect measurements [PDF]

open access: yesJournal of Advanced Dielectrics, 2018
The electrocaloric effect (ECE) in lead-free BaSnxTi1−xO3 (BSnT, x=0.05, 0.10 and 0.15) ceramics were investigated using a direct ECE measurement. Results indicate that the maximum ECE occurs near the Curie temperature and it slightly shifts towards high
Jiang Li   +8 more
doaj   +1 more source

Intelligent Coordination and Automation for Smart Home Accessories [PDF]

open access: yes, 2017
Smarthome accessories are rapidly becoming more popular. Although many companies are making devices to take advantage of this market, most of the created smart devices are actually unintelligent.
Choulos, Alexander, Zhang, Tian
core   +1 more source

A langasite surface acoustic wave wide-range temperature sensor with excellent linearity and high sensitivity

open access: yesAIP Advances, 2021
Langasite (LGS) surface acoustic wave (SAW) temperature sensors have a large second order temperature coefficient of frequency, which leads to their non-linear and non-monotonic responses in a wide temperature range and possibly makes the measured ...
Hongsheng Xu   +9 more
doaj   +1 more source

SiC MOSFET with Integrated SBD Device Performance Prediction Method Based on Neural Network

open access: yesMicromachines
The SiC MOSFET with an integrated SBD (SBD-MOSFET) exhibits excellent performance in power electronics. However, the static and dynamic characteristics of this device are influenced by a multitude of parameters, and traditional TCAD simulation methods ...
Xiping Niu   +10 more
doaj   +1 more source

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