Results 11 to 20 of about 28,813 (217)

Detecting Traces of 17α-Ethinylestradiol in Complex Water Matrices

open access: yesSensors, 2020
Hormones have a harmful impact on the environment and their detection in water bodies is an urgent matter. In this work, we present and analyze a sensor device able to detect traces of the synthetic hormone 17α-ethinylestradiol (EE2) below 10−9 M in ...
Paulo M Zagalo   +2 more
doaj   +1 more source

Electric Modulus Analysis of (1 − x) PbMg1/3Nb2/3O3-(x)K1/2Bi1/2TiO3 Ceramics

open access: yesAdvances in Condensed Matter Physics, 2022
Ferroelectrics refer to groups of dielectrics having the property of spontaneous polarization. Lead magnesium niobate-potassium bismuth titanate ((1 − x) PbMg1/3Nb2/3O3-(x)K1/2Bi1/2TiO3)) x = 0.15, 0.25, and 0.35 are prepared by solid-state reaction rout
Kebede Legesse   +2 more
doaj   +1 more source

Bicontinuous Cubic and Hexagonal Columnar Liquid Crystalline Ion-Conductors at Room Temperature in Ion-Doped Dendritic Amphiphiles

open access: yesCrystals, 2020
A bicontinuous cubic (Cubbi) liquid crystalline (LC) phase consisting of three dimensional (3D) conducting networks is a promising structural platform for ion-conductors.
Thi Huyen Do   +3 more
doaj   +1 more source

Electrical and Dielectric Properties of Copper Ion Conducting Solid Polymer Electrolytes Based on Chitosan: CBH Model for Ion Transport Mechanism

open access: yesInternational Journal of Electrochemical Science, 2018
Copper ion-conducting polymer electrolytes based on chitosan (CS) were prepared using solution-cast technique. The CS host polymer was complexed with different weight percent copper iodide (CuI) salt.
Shujahadeen B. Aziz   +3 more
doaj   +1 more source

The underlying model for defect parameters in materials of geophysical interest and Seismic Electric Signals [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2012
Here, we investigate whether the bulk or the shear is the appropriate modulus for the defect parameters in different materials by focusing on those of geophysical interest.
E. Dologlou
doaj   +1 more source

Solid Polymer Electrolytes Based on Chitosan:NH4Tf Modified by Various Amounts of TiO2 Filler and its Electrical and Dielectric Characteristics

open access: yesInternational Journal of Electrochemical Science, 2019
In the current work the role of titanium dioxide (TiO2) filler on dielectric and conductivity properties of chitosan (CS) based solid polymer electrolytes (SPEs) were investigated at various temperatures. To prepare CS based SPEs fixed amount of ammonium
Shujahadeen B. Aziz   +2 more
doaj   +1 more source

Effects of sintering temperature on ac conductivity, permittivity, and permeability of manganese doped cobalt ferrite nanoparticles

open access: yesResults in Physics, 2020
This paper reports on the effects of magnetic and electric properties of a non-stoichiometric composition of cobalt ferrite nanoparticles doped with manganese content at the weight percent 0.25.
M.Z. Ahsan, M.A. Islam, F.A. Khan
doaj   +1 more source

Effects of silicate modulus and alkali dosage on the performance of one-part electric furnace nickel slag-based geopolymer repair materials

open access: yesCase Studies in Construction Materials, 2023
Traditional ordinary Portland cement (OPC) repair materials with high carbon emissions and low bond strength, urgently need to be improved. A one-part electric furnace nickel slag-based geopolymer (OENG) repair material was prepared through mechanical ...
Yanran Shen   +7 more
doaj   +1 more source

Structural, optical and impedance spectroscopy study of thin film of polyaniline (PANI/ZnO) nanocomposite

open access: yesMaterials Research Express, 2019
Modern organic electronic and power electronic devices gained attention due their superior performance and efficiency with reduced cost. While nanocomposites of these organic semiconductors have high potential to further enhance these properties. In this
Mutabar Shah   +6 more
doaj   +1 more source

Spectroscopic analysis for electric and magnetic properties of manganese doped cobalt nanoferrite

open access: yesResults in Physics, 2020
The investigated samples of manganese doped cobalt nanoferrites were prepared by the conventional solid-state reaction route using a planetary ball milling technique.
M.Z. Ahsan   +3 more
doaj   +1 more source

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