Results 41 to 50 of about 211,393 (295)

Carbon Quantum dots doped Chitosan/HPMC nano composites and their Functional, Structural, Morphological, Dielectric and Tensile properties [PDF]

open access: yesE3S Web of Conferences, 2023
Carbon Quantum Dots (CQDs) were prepared from modified hydrothermal method using Citric acid and ethane diamine as a source material. The synthesized CQDs were characterized by UV-Vis spectroscopy, Fluorescence Studies (FL), Atomic force microscopy (AFM).
Shareef S. Noormohammad   +4 more
doaj   +1 more source

Dynamic heterogeneity in the glass-like monoclinic phases of some halogen methane compounds [PDF]

open access: yes, 2013
In this work we study the heterogeneity of the dynamics on the low-temperature monoclinic phases of the simple molecular glassy systems CBrnCl4−nCBrnCl4−n, n = 0, 1, 2.
Pardo, L. C.   +3 more
core   +1 more source

Dielectric spectroscopy of plant protoplasts

open access: yesBiophysical Journal, 1992
The relative permittivity and conductivity of the mesophyll protoplasts isolated from Brassica campestris leaves and Tulipa gesneriana petals were measured over a frequency range from 1kHz to 500 MHz.These protoplasts showed a broad dielectric dispersion, which was composed of three subdispersions, termed beta(1)-, beta(2)-, and beta(3)-dispersion in ...
Asami, Koji, Yamaguchi, Tohru
openaire   +2 more sources

Application of terahertz spectroscopy to the characterization of biological samples using birefringence silicon grating [PDF]

open access: yes, 2012
We present a device and method for performing vector transmission spectroscopy on biological specimens at terahertz (THz) frequencies. The device consists of artificial dielectric birefringence obtained from silicon microfluidic grating structures. The
Born, Nagai, Rytov, Saha, Shimul C. Saha
core   +1 more source

Impact of Charge Transfer Complex on the Dielectric Relaxation Processes in Poly(methyl methacrylate) Polymer

open access: yesMolecules, 2022
The impact of the charge transfer complex on the dielectric relaxation processes in free poly(methyl methacrylate) (PMMA) polymer sheets was investigated.
Arwa Alrooqi   +6 more
doaj   +1 more source

Fluorescence Spectroscopy with Metal–Dielectric Waveguides [PDF]

open access: yesThe Journal of Physical Chemistry C, 2015
We describe a hybrid metal-dielectric waveguide structures (MDWs) with numerous potential applications in the biosciences. These structures consist of a thin metal film coated with a dielectric layer. Depending on the thickness of the dielectric layer, the modes can be localized near the metal, within the dielectric, or at the top surface of the ...
Badugu Ramachandram   +8 more
openaire   +2 more sources

Microstructure and magneto-dielectric properties of the chitosan/gelatin-YIG biocomposites

open access: yeseXPRESS Polymer Letters, 2011
This work is devoted to the preparation of yttrium iron garnet (YIG) ferrimagnetic biocomposites based in biodegradable chitosan and gelatin. The aim was to produce composite films containing controlled amounts of YIG to obtain a new biological material ...
P. B. A. Fechine   +8 more
doaj   +1 more source

Breakdown Performance and Partial Discharge Development in Transformer Oil-Based Metal Carbide Nanofluids

open access: yesNanomaterials, 2022
In this work, the influence of semi-conductive SiC nanoparticles on the AC breakdown voltage and partial discharge development in natural ester oil FR3 is examined.
Konstantinos N. Koutras   +5 more
doaj   +1 more source

Study of dielectric relaxations in cellulose by combined DDS and TSC [PDF]

open access: yes, 2007
In this work, thermally stimulated currents (TSC) analyses combined with dynamic dielectric spectroscopy (DDS) have been applied to the investigation of molecular mobility of cellulose.
Boudet, Alain-Michel   +3 more
core   +4 more sources

Dielectric Spectroscopy

open access: yes, 2017
In this chapter, an attempt has been made to review dielectric spectroscopy (DS) as a technique for the characterization of nanomaterials. DS involves the study of the response of a material to an electric field, which furnishes structural information, i.e., molecular structure, physical arrangement, and behavior of the molecules within the structure ...
Deshmukh, Kalim   +7 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy