Results 41 to 50 of about 10,180 (223)

Using Photoelectric-Diode Volt-Ampere Characteristic to Detect Visibility

open access: yesDEStech Transactions on Engineering and Technology Research, 2018
Based on the linear relationship between light illumination and output current of photoelectric-diode under reverse bias voltage, several photoelectric circuit was design. According to Bouguer-Lambert's law and Koschmic principle, the relationship between output voltage and illumination is changed into a quantitative relationship between output voltage
ZHONG-QIAN SU   +3 more
openaire   +2 more sources

Study on the time-varying characteristics of AC local arc over the contaminated insulation surface

open access: yesAIP Advances, 2021
From laboratory experiments it was shown that the flashover voltage of the wet contaminated insulator was significantly influenced by the parameters of the local arc.
H. Yang   +4 more
doaj   +1 more source

Device for Automated Measurement of Volt-Ampere Characteristics

open access: yesElectronic and Acoustic Engineering, 2019
The device, which allows automated measurement of volt-ampere characteristics of semiconductor devices, is developed.  The device is implemented using the microcontroller of STM32F4 series, DAC, voltage–current transform circuit, voltage and current sensor and a laptop with LabVIEW programming environment.
openaire   +3 more sources

A Perspective of Multi‐Reflecting TOF MS

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Time‐of‐flight mass spectrometry (TOF MS) excels in rapid and high‐sensitivity analysis, making it a cornerstone of analytical chemistry. But as sample complexity explodes in omics studies, so does the need for higher resolving power to ensure accurate results.
A. N. Verenchikov   +3 more
wiley   +1 more source

Integral optoelectronic switch based on DMOS-transistors [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2008
The characteristics of optoelectronic couples photodiodes-DMOS-transistor are studied in the paper. There was developed a mathematical model of volt-ampere characteristic of the given optoelectronic couple which allows to determine interrelation of its ...
Politanskyy L. F., Lesinskyy V. V.
doaj  

The design of an electric fence monitoring system : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Production Technology at Massey University [PDF]

open access: yes, 1996
This thesis presents the design of an Electric Fence Monitoring System (EFMS) which detects and announciates fence malfunctions indicating operational ineffectiveness. The EFMS consists of a master unit and up to sixteen slave units.
Adamson, Paul Robert
core  

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

open access: yesHigh Voltage, EarlyView.
ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov   +4 more
wiley   +1 more source

In silico modelling of multi‐electrode arrays for enhancing cardiac drug testing on hiPSC‐CM heterogeneous tissues

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the experimental and computational framework for investigating hiPSC‐CM electrophysiology with MEA systems. The MEA‐based model integrates experimental data with phenotype‐specific ionic models and tissue‐level heterogeneity.
Sofia Botti   +2 more
wiley   +1 more source

Fast and Slow Signal Propagation in Abiotic Polypeptide Assemblies

open access: yesChemBioChem, Volume 27, Issue 6, 27 March 2026.
Proteinoid microspheres formed by thermal polymerization of amino acids exhibit spontaneous electrical potential fluctuations without genetic material, membranes, or ion channels. Multi‐electrode recordings and electron microscopy reveal composition‐dependent voltage oscillations, long‐term drifts, and correlated signals across electrodes.
Panagiotis Mougkogiannis   +1 more
wiley   +1 more source

Testing of hydrogen sensor based on organic materials [PDF]

open access: yes, 2011
Práce je zaměřena na problematiku bezpečnostních vodíkových senzorů. Základní principy a teorie vodíkových senzorů je rozebrána v první části práce.
Petrová, Lenka
core  

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