scholarly journals Possibility of controlling the conduction mechanism by choosing a specific doping element in a praseodymium manganite system

RSC Advances ◽  
2020 ◽  
Vol 10 (56) ◽  
pp. 33868-33878
Author(s):  
Y. Moualhi ◽  
R. M'nassri ◽  
H. Rahmouni ◽  
M. Gassoumi ◽  
K. Khirouni

Electrical properties of Pr0.7Ca0.3Mn0.9X0.1O3 (X = Co, Ni, Cr and Fe) systems have been investigated using impedance spectroscopy measurements.

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 39750-39757 ◽  
Author(s):  
Y. Ben Taher ◽  
N. Moutia ◽  
A. Oueslati ◽  
M. Gargouri

Rubidium aluminium diphosphate was synthesized by a conventional solid-state technique and its conduction properties determined by impedance spectroscopy.


2021 ◽  
Vol 363 ◽  
pp. 115593
Author(s):  
V. Kavaliukė ◽  
T. Šalkus ◽  
S. Balčiūnas ◽  
J. Banys ◽  
A.I. Pogodin ◽  
...  

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Pei-Ju Chao ◽  
Eng-Yen Huang ◽  
Kuo-Sheng Cheng ◽  
Yu-Jie Huang

Electrical impedance is one of the most frequently used parameters for characterizing material properties. The resistive and capacitive characteristics of tissue may be revealed by electrical impedance spectroscopy (EIS) as electrical biopsy. This technique could be used to monitor the sequelae after irradiation. In this study, rat intestinal tissues after irradiation were assessed by EIS system based on commercially available integrated circuits. The EIS results were fitted to a resistor-capacitor circuit model to determine the electrical properties of the tissue. The variations in the electrical characteristics of the tissue were compared to radiation injury score (RIS) by morphological and histological findings. The electrical properties, based on receiver operation curve (ROC) analysis, strongly reflected the histological changes with excellent diagnosis performance. The results of this study suggest that electrical biopsy reflects histological changes after irradiation. This approach may significantly augment the evaluation of tissue after irradiation. It could provide rapid results for decision making in monitoring radiation sequelae prospectively.


2017 ◽  
Vol 712 ◽  
pp. 696-703 ◽  
Author(s):  
M. Naveed ◽  
M. Mumtaz ◽  
Rashid Khan ◽  
Abrar A. Khan ◽  
M. Nasir Khan

Author(s):  
Nurul Huda Osman ◽  
Nurul Najiha Mazu ◽  
Josephine Liew Ying Chyi ◽  
Muhammad Mahyiddin Ramli ◽  
Mohammad Abdull Halim Mohd Abdull Majid ◽  
...  

This paper reports on chitosan/bentonite crosslinked (ChB-ECH) film for removal of Cu (II). The effects of chitosan/bentonite ratio on the removal percentage were studied along with the effect of different Cu (II) concentration and the contact time on the film adsorption capacity, qt. The electrical properties of the film are studied, before and after the adsorption occurred, by using impedance spectroscopy for different parameters such as DC conductivity, the complex dielectric constants (ε’ and ε”) and complex electrical modulas (M’ and M’’). The results showed that the chitosan/bentonite ratio of 3:1 produces highest removal percentage at 29 %, while the contact time of 120 minutes was found to be optimum. An increment in the DC conductivity of the ChB-ECH film’s was observed up to 10-7 S/cm as the removal percentage of film increased. The film with the highest Cu (II) adsorb also showed the highest value for ε’ and ε” while exhibiting non-Derby behavior. Shifting of peak amplitude of the M” towards the higher frequency was also observed as the Cu (II) adsorption in the film increased. The results showed that all the electrical parameters can be utilized to determine the amount of adsorbed copper (II) in chitosan/bentonite film.


2019 ◽  
Vol 102 (7) ◽  
pp. 4038-4047 ◽  
Author(s):  
Qishan Zhu ◽  
Rujun Tang ◽  
Hao Zhou ◽  
Yu Wang ◽  
Sicheng Xu ◽  
...  

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