In general what is the effect of rare earth doping on temperature coefficient of resonance? It will increase or decrease with rare earth doping?

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03 April 2018 4,884 0 View

Good morning all. Can anyone please provide me research papers on LiNbO3:RE (RE=La, Yb) and LiTaO3:RE (RE=La, Yb)?

Papers needed for review.

02 March 2018 5,727 3 View

Hi all. Can we use Lanthanum (La) as a dopant for Photoluminescence?

Needed for review

02 March 2018 6,272 6 View

Is it possible to have negative internal strain?

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01 February 2018 7,074 0 View

Hi all. I need Origin software. If anyone has this software kindly share it with me?

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01 February 2018 4,323 0 View

Hi all. Is there any relationship between Particle size and volume of a Unit cell. Does increase in volume of a cell has any effect on particle size?

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01 February 2018 2,872 0 View

Can anybody please tell me the standard symbol used for the size of crystallite?

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10 November 2016 4,378 3 View

Hi all. Can anyone please tell me that why dielectric constant decreases with the increase in frequency?

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10 November 2016 4,590 1 View

Hi all. What is the formulae for calculating Temperature coefficient of permitivity?

research purpose.

03 April 2016 3,227 1 View

Formuale for calculating temperature coefficient of dielectric constant ?

03 April 2016 5,947 2 View

What is difference between In-line transmission (%) and Total transmission (%) value of optically transparent Ceramics?

I am working on transparent/translucent zirconia-based ceramics. In many papers, I have seen that they are reporting both In-line transmission (%) & Total transmission (%) value of...

20 February 2021 9,405 6 View

How to model in HFSS or FEKO Free Space Material Characterization?

I am having trouble setting up this problem in HFSS or FEKO. In HFSS, I've tried both FEM and FEBI-IE solvers. With FEKO, I've tried it's MoM solver and default settings. I am would like model...

09 February 2021 375 2 View

Using liquids as superstrate in Fabry-Perot Cavity Antenna?

Hi, A Fabry Perot Cavity allows to increase the directivity of a low gain antenna by putting in the top of cavity a superstrate with high permittivity such as a ceramic (er=10.2). However,...

09 February 2021 6,799 8 View

Sample preparation for ceramics i.e. iron silicate (fayalite), iron oxides, alumina, spinel mineral (hercynite)?

Recommendations in preparing ceramics for nanoindentation and in the process minimize introducing stresses from sample preparation i.e. polishing stage.

02 February 2021 6,211 3 View

What should I do if the reviewer couldn't finalize the review in the journal's given time?

I have Submitted 2,3 Papers in Science Direct associated Journals but the time of the first decision has been ended so What should I do? Could I email them to remind them about the first decision?

01 February 2021 5,788 7 View

What are the thermodynamic and kinetic similarities and differences among dendrite formation during solidification of metals, ceramics and polymers?

Basic dendrite formation of metallic alloys are explained by thermal and constitutional degree of supercooling and most-supercooled band of liquid somewhat ahead of solidification front that...

30 January 2021 8,450 2 View

Should I make 2 helical antennas? One for 2.4 GHz and another for 5.8 GHz?

Should I make 2 antennas, one for 2.4 GHz and one for 5.8 GHz? How should I approach the problem if I want to design the antennas which cover 400 and 900 MHz and 2.4 and 5.8 GHz? All together in...

26 January 2021 906 3 View

Control in microstructure with growth inhibitor?

Dear researchers, I wish to understand the role of grain growth inhibitor in controlling the microstructure of the ceramic pellet. How it controls the growth? Also, I wish to know the grain...

15 January 2021 3,859 3 View

Servers for finding free energy and dissociation constant of protein-protein docked complex?

Hello everyone, I would like to get help about finding any server or application which can give me info about free energy and dissociation constant of protein-protein docking outputs. I have...

15 January 2021 587 3 View

How to relate relaxation time values obtained from different equation?

I tried to fit the frequency vs Dielectric constant and f vs Dielectric Loss graph with HN equation. I got different Tau (relaxation time) values from the fittings of both graphs. What I have to...

12 January 2021 8,467 6 View