Results 31 to 40 of about 98,427 (266)

Multi-Channel MEMS-FAIMS Gas Sensor for VOCs Detection

Micromachines, 2023
Aimed at the problems of a large equipment size, long time and high price of environmental VOC gas detection, the FAIMS-VOC gas sensor was designed and prepared according to the principle that the ionization energy of the common VOC gas is less than 10.6
Zhujie Zhao, Cheng Lei, Ting Liang, Junna Zhang, Yuqiao Liu, Abdul Ghaffar, Jijun Xiong   +6 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Gas Sensor Array Dynamic Measurement Uncertainty Evaluation and Optimization Algorithm

IEEE Access, 2019
Metal oxide semiconductor (MOS) gas sensor array dynamic measurement uncertainty evaluation, which currently mainly uses static measurement approximation estimations, cannot accurately distinguish the measured value of the sudden change of the measured ...
Wenwen Zhang, Lei Wang, Lihua Ye, Peilong Li, Mingxue Hu   +4 more
doaj   +1 more source

Studies of NO₂ Gas-Sensing Characteristics of a Novel Room-Temperature Surface-Photovoltage Gas Sensor Device

Sensors, 2020
In this work the characteristics of a novel type of room temperature NO2 gas sensor device based on the surface photovoltage effect are described. It was shown that for our SPV gas sensor device, using porous sputtered ZnO nanostructured thin films as ...
Monika Kwoka, Jacek Szuber
doaj   +1 more source

A Chemoresistive Gas Sensor Readout Integrated Circuit With Sensor Offset Cancellation Technique

IEEE Access, 2023
This study proposes a chemoresistive gas sensor readout integrated circuit (ROIC) with a simple and effective scheme for tracking and canceling the sensor offset value.
Jun-Nyeong Kim, Hyeon-June Kim
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

The pyruvate generator is a common phenomenon in mitochondria from different rat and mouse brain regions

FEBS Letters, EarlyView.
The pyruvate generator, which causes activation of respiration by extra‐mitochondrial Ca2+, is also present and functional in rat brainstem mitochondria, as it is in other brain regions. This finding is confirmed by experiments with a fully reconstituted malate–aspartate shuttle (MAS).
Grazyna Debska‐Vielhaber, Niki Karavasili, Matthias Kunz, Zemfira Gizatullina, Timur Gainutdinov, Stefan Vielhaber, Wolfram S. Kunz, Frank N. Gellerich   +7 more
wiley   +1 more source

DETEKSI KEBOCORAN GAS LPG BERBASIS MIKROKONTROLER ATMega8535

Jurnal Fisika Flux, 2017
. An electronic system based on Atmega8535 microcontroller for detecting LPG gas has been done. The system was employed a gas sensor, a temperature sensor DS18S20, Op-amp LM358, IC voice ISD25120, a microcontroller, and LCD display.
Rusgianto Rusgianto
doaj   +3 more sources

Long-Term Stability Test for Femtosecond Laser-Irradiated SnO₂-Nanowire Gas Sensor for C₇H₈ Gas Sensing

Photonics
In this study, femtosecond (FS) laser irradiation with different laser energy densities of 138, 276, and 414 mJ/cm2 is applied to SnO2-nanowire (NW) gas sensors, and the effect of the FS laser irradiation on the gas sensor response toward toluene (C7H8 ...
Sanghoon Ahn, Kang Woo Chun, Changkyoo Park   +2 more
doaj   +1 more source

PEMBUATAN SENSOR GAS HIDROGEN BERBASIS FILM TIPIS GaN DENGAN TEKNIK SOL GEL SPIN COATING UNTUK KOMPONEN PADA SISTEM PENDETEKSI KEBOCORAN GAS

Jurnal Pendidikan Fisika Indonesia, 2013
Penelitian ini bertujuan untuk membuat sensor gas dengan sensitivitas baik, dipergunakan sebagai komponen dalam sistem pendeteksi kebocoran gas hidrogen.
D. Rusdiana
doaj   +1 more source