نتایج جستجو برای: dynamic dielectric constant

تعداد نتایج: 645089  

Journal: :journal of sciences islamic republic of iran 0

a simple and reliable method for quick estimation of the dielectric constant of a binary solvent mixture is proposed. the validity of the proposed method has been tested for a broad range of binary solvent mixtures

, ,

Bismuth titanate ceramic has been attracted as a lead-free ferroelectric due to its high Curie temperature in high temperature applications as well as high frequency applications. In this study, the effect of niobium oxide as an additive on the microstructure and dielectric properties of bismuth titanate ceramic was investigated. For this purpose, niobium oxide was added to bismuth titanate, sy...

Journal: :journal of physical & theoretical chemistry 2005
m. aghaie f. ghaemi amiri m. giahi

using the evaporating method, the solubility of potassium nitrate was determined in various mixtures containing water and ethanol at 25°c. the results show that the solubility of kno3 decreases with increasing the mass percent of ethanol in the mixtures. this trend is along with decreasing the dielectric constant of water+ethanol mixtures. moreover, it can be concluded that the totqal solubilit...

Journal: :international journal of nano dimension 0
p. rejani nano science research lab, department of chemistry, d.b.college,sasthamcotta, kollam,kerala, india. a. radhakrishnan nano science research lab, department of chemistry, d.b.college,sasthamcotta, kollam,kerala, india. b. beena nano science research lab, department of chemistry, d.b.college,sasthamcotta, kollam,kerala, india.

zno nanorod was prepared by microwave assisted method. the crystal structure of the nano powders were confirmed by x-ray diffraction analysis and the mean particle size was estimated by the scherrer,s formula .the surface morphology of the nano particles were analyzed by   using sem . the absorption spectrum of the material in the uv-vis range was recorded .the energy band gap of the material w...

Journal: :journal of physical & theoretical chemistry 2010
f. najafi l. saedi f. mollaamin h. aghaie

in this work, we have studied the solvent effects on values of gibbs free energy, enthalpy. entropy and dipolemoment in spread of solvents around anticancer thug of temreolomide that is an alighting agent. for thispurpose, the quantum mechanic calculations bawd on hanrertnick theory at the sto-36/3-2ith levels havebeen done. moreover, we have compared resulted thermodynamic values in gas phase ...

2008
Mehrez Zribi Aurélie Le Morvan Nicolas Baghdadi

The objective of this paper is to present the contribution of a new dielectric constant characterisation for the modelling of radar backscattering behaviour. Our analysis is based on a large number of radar measurements acquired during different experimental campaigns (Orgeval'94, Pays de Caux'98, 99). We propose a dielectric constant model, based on the combination of contributions from both s...

2016
K. C. Chan

This paper reports the characterization of a photosensitive benzocyclobutene (BCB), a low dielectric constant spin-on polymer for use as interlayer dielectric in the microelectronics industry. Research work is divided into three main sections. First, BCB thin film characterization was done to investigate the effects of curing conditions on BCB film thickness, dielectric properties, optical prop...

Journal: :journal of physical & theoretical chemistry 2010
m.h. ghorbani r. fazaeli a. ghoorchian

in this work, we investigated the stability of molybdate-phosphonic acid (mpa) complex by density functionaltheory (dft) computations in six solvents with the dielectric constant ranging from 1.92 to 10.36. the methodsare used for calculations are b3lyp and b3pw9 i that have been studied in two series of basis sets: d95nand6-31+g (d,p) for hydrogen and oxygen atoms; lanl2dz for mo and phosphoru...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید