Results 21 to 30 of about 2,877,930 (285)

Low attenuation microwave waveguides [PDF]

open access: yes, 1974
PhDAn investigation of the dispersion and attenuation characteristics of cylindrical structures supporting guided electromagnetic waves with low attenuation is described.
Al-Hariri, Ali Mohammed Bakir
core   +4 more sources

Dielectric Studies on Fe3O4 Nanodoped p-n-Alkyloxybenzoic Acids

open access: yesAdvances in Condensed Matter Physics, 2014
The stability of phase transition temperatures and textural changes for thermotropic pure and nanodoped p-n-alkyloxybenzoic acid mesogens were aimed to study at considerable time periods.
S. Sreehari Sastry   +5 more
doaj   +1 more source

Effect of Viscosity and Density of Substance on Dielectric Properties of Medicinal Compounds in Solution

open access: yesNano Biomedicine and Engineering, 2020
Complex permittivity in terms of dielectric constant (ε') and dielectric loss (ε") of medicinal compound paracetamol in dimethyl sulfoxide (DMSO) solvent was determined with different weight fractions at microwave frequency 9.85 GHz at constant ...
Jinan Fadhil Mahdi   +3 more
doaj   +1 more source

DIELECTRIC STUDIES ON TSP: NANO3 BIOPOLYMER-BASED POLYMER ELECTROLYTES [PDF]

open access: yesProceedings on Engineering Sciences
The solution cast method made free-standing tamarind seed polysaccharide (TSP): Sodium Nitrate (NaNO3) based solid polymer electrolyte films with various weight percentages.
M. Gnana Kiran   +4 more
doaj   +1 more source

Synthesis and characterization of strontium-doped barium titanate thin film by dip and dry technique

open access: yesJournal of Advanced Dielectrics, 2021
Thin films of polycrystalline (Ba1−xSrx)TiO3 (x = 0.2 and 0.3) with Perovskite structure were prepared by a dip and dry technique on a platinum-coated silicon substrate.
S. G. Chavan   +2 more
doaj   +1 more source

Dielectric and impedance properties of Li0.5Fe2.5O4 doped BaTiO3 composite ceramics

open access: yesResults in Physics, 2018
The sintered composite Li0.5Fe2.5O4 (LF) doped BaTiO3 (BT) having chemical formulae (1−x) BT+ (x) LF (where x = 0, 0.05) have been prepared using conventional solid state reaction technique.
Ganapathi Rao Gajula   +3 more
doaj   +1 more source

Optical, rheological, and dielectric properties of coconut oil between 100 kHz and 30 MHz

open access: yesHeliyon
In this paper, the dielectric behaviour of coconut oil within the frequency range 100 kHz to 30 MHz between temperature 30 °C–50 °C has been observed.
Venkatesh Mishra   +4 more
doaj   +1 more source

Magneto-dielectric characterization of TiO2-CoFe2O4 derived ceramic composites [PDF]

open access: yesProcessing and Application of Ceramics, 2018
Dielectric permittivity (ε′), magnetic permeability (µ′) and dielectric and magnetic loss (tan δε and tan δµ, respectively) of magneto-dielectric cobalt ferrite-titania (CFO-TO) ceramic composites are determined from 200 to 300 MHz.
Pietro Galizia   +6 more
doaj   +1 more source

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

open access: yesFEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn   +2 more
wiley   +1 more source

Revealing the AC electromechanically coupled effects and stable sensitivity on the dielectric loss in CNT-based nanocomposite sensors

open access: yesMaterials & Design, 2022
This work is concerned with the characterization of load-dependent dielectric loss and sensitivity analysis for CNT-based nanocomposite sensors (CNCSs) under AC loading. To this end, an electromechanically coupled microstructural theory is developed from
Xiaodong Xia   +3 more
doaj   +1 more source

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