scholarly journals The Application of Electrochemical Impedance Spectroscopy to Immediately Diagnose the Protective Quality of Coatings on Artistic and Architectural Metalwork

2000 ◽  
Author(s):  
Kathryn Hosbein
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance

scholarly journals Electrochemical Impedance Spectroscopy Investigation on the Clinical Lifetime of ProTaper Rotary File System

2014 ◽  
Vol 2014 ◽  
pp. 1-10
Author(s):  
Virgil Penta ◽  
Cristian Pirvu ◽  
Ioana Demetrescu
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Oxide Layer ◽  
File System ◽  
Electrochemical Impedance ◽  
Protective Layer ◽  
Electrochemical Technique ◽  
Clinical Aspects ◽  
Surface Oxide Layer

The main objective of the current paper is to show that electrochemical impedance spectroscopy (EIS) could be a method for evaluating and predicting of ProTaper rotary file system clinical lifespan. This particular aspect of everyday use of the endodontic files is of great importance in each dental practice and has profound clinical implications. The method used for quantification resides in the electrochemical impedance spectroscopy theory and has in its main focus the characteristics of the surface titanium oxide layer. This electrochemical technique has been adapted successfully to identify the quality of the Ni-Ti files oxide layer. The modification of this protective layer induces changes in corrosion behavior of the alloy modifying the impedance value of the file. In order to assess the method, 14 ProTaper sets utilized on different patients in a dental clinic have been submitted for testing using EIS. The information obtained in regard to the surface oxide layer has offered an indication of use and proves that the said layer evolves with each clinical application. The novelty of this research is related to an electrochemical technique successfully adapted for Ni-Ti file investigation and correlation with surface and clinical aspects.

scholarly journals Modelling of an equivalent circuit for Cu2ZnSnS4- and Cu2ZnSnSe4-based thin film solar cells

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25347-25352 ◽  
Author(s):  
Naoyuki Shibayama ◽  
Yiwen Zhang ◽  
Tetsuo Satake ◽  
Mutsumi Sugiyama
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Equivalent Circuit ◽  
Electrochemical Impedance ◽  
Internal Resistance ◽  
Thin Film Solar Cells

The internal resistance and quality of the interface in CZTS solar cells were investigated using electrochemical impedance spectroscopy.

ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY FOR PALM COOKING OIL DISCRIMINATOR USING PLANAR ELECTROMAGNETIC SENSOR ARRAY

2016 ◽  
Vol 78 (7-4) ◽  
Author(s):  
Ahmad Amsyar Azman ◽  
Ruzairi Abdul Rahim ◽  
Sallehuddin Ibrahim ◽  
Aizat Azmi ◽  
Agus Arsad ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Palm Oil ◽  
Sensor Array ◽  
Electrochemical Impedance ◽  
Food Industries ◽  
Cooking Oil ◽  
Electromagnetic Sensor ◽  
The Cost

Cooking oil is an important product in the Malaysia food industries. Most of the cooking oil products is based on palm oil. However, there are activities in selling cheaper cooking oil by labelling as high quality in cooking oil product. Traditional methods have been developed to measure the quality of the cooking oil product such as the chromatography technique but the cost for the system setup is expensive and requires a large amount of time to analyse the sample. Thus, a suitable and reliable system with less analysis time is needed for widespread industrial uses. This paper has presented a discriminative technique for palm cooking oil using Electrochemical Impedance Spectroscopy (EIS) with planar electromagnetic sensor array. The sensor consists of a meander sensor and an interdigital sensors which interact with the test samples. Three types of palm cooking oil such as double refined palm oil, refined and deodorized palm oil with peanut and sesame oil, and filtered palm oil were prepared. The results obtained showed that the presented technique was able to differentiate the samples between 20 kHz to 1 Mhz. The results obtained correlate with the theories on EIS technique and planar electromagnetic sensor which are presented in this paper.      

Sign in / Sign up

Export Citation Format

Share Document