Results 41 to 50 of about 112,571 (192)

Investigation of Formation and Dissociation Processes of Tetrahydrofuran Hydrate Based on Electrochemical Impedance Spectroscopy

open access: yesYankuang ceshi, 2015
The electrical properties of hydrous sediments are extremely complex and affected by many factors. The widely used resistivity parameter is unable to characterize the electrical properties of hydrous sediments fully.
XING Lan-chang   +2 more
doaj   +1 more source

Fractional-order model of a non-linear inductor [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2019
This paper adopts a fractional calculus perspective to describe a non-linear electrical inductor. First, the electrical impedance spectroscopy technique is used for measuring the impedance of the device.
A.M. Lopes, J.A. Tenreiro Machado
doaj   +1 more source

On-Chip Temperature Compensation for Thermal Impedance Sensors

open access: yesProceedings, 2018
Electrical impedance spectroscopy is a widespread characterization method for solids or fluids in industrial applications. We here report on its thermal equivalent, the “thermal impedance spectroscopy”, improved by using a temperature compensation method
Martin Jaegle   +7 more
doaj   +1 more source

A CMOS Bio-Impedance Measurement System [PDF]

open access: yes, 2009
This paper proposes a new method for bio-impedance measurement useful to 2D processing of cell cultures. It allows to represent biological samples by using a new impedance sensing method, and exploiting the electrode-to-cell model for both electrical
Rueda Rueda, Adoración   +1 more
core   +1 more source

Impedance analysis of oil conductivity and pixel non-uniformity in electrowetting displays

open access: yesResults in Physics, 2020
The electrical conductivity of the oil film is a key property of electrowetting displays (EWD) and its evolution probably correlates to the device lifetime. In this report, we fabricate an EWD device and measure its electrical impedance spectrum.
Bojian Xu   +6 more
doaj   +1 more source

The intrinsic electrical equivalent circuit of a laser diode [PDF]

open access: yes, 1981
The basic electrical equivalent circuit of a laser diode is derived. The effects of spontaneous emission and self-pulsations are included. It is found that self-pulsations are represented by a negative resistance in the model.
Harder, C.   +4 more
core   +1 more source

On the selection of excitation signals for the fast spectroscopy of electrical bioimpedance

open access: yesJournal of Electrical Bioimpedance, 2018
Different excitation signals are applicable in the wideband impedance spectroscopy in general. However, in electrical bioimpedance (EBI) measurements, there are limitations that set specific demands on the properties of the excitation signals. This paper
Ojarand Jaan, Min Mart
doaj   +1 more source

Performance of Electrical Spectroscopy using a Resper Probe to Measure the Salinity and Water Content of Concrete or Terrestrial Soil [PDF]

open access: yes, 2011
This paper discusses the performance of electrical spectroscopy using a RESPER probe to measure the salinity s and volumetric content {\theta}W of the water in concrete or terrestrial soil.
Settimi, A.
core   +4 more sources

Sensing Cell-Culture Assays with Low-Cost Circuitry [PDF]

open access: yes, 2018
An alternative approach for cell-culture end-point protocols is proposed herein. This new technique is suitable for real-time remote sensing. It is based on Electrical Cell-substrate Impedance Spectroscopy (ECIS) and employs the Oscillation-Based Test ...
Daza Navarro, María Paula   +7 more
core   +1 more source

Broadband electrical impedance spectroscopy for dynamic electrical bio-impedance characterization

open access: yes, 2023
The electrical impedance of biological samples is known in the literature as Electrical Bioimpedance (EBI). The Electrical Bioimpedance enables to characterize physiological conditions and events that are interesting for physiological research and medical diagnosis.
openaire   +4 more sources

Home - About - Disclaimer - Privacy