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

Distribution of modes fields ?

Hi, We find a specific distribution of electric fields in structure for different frequencies which can be seen using em solvers and known as modes. I would like to know how we can choose the...

04 February 2021 10,043 3 View

Are there special specifications lining open channels with lean concrete, what is the compressive strength?

I need any international specifications for lining open channels with lean concrete.

10 June 2020 4,476 5 View

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20 August 2019 2,731 2 View

What is the best methods for curing when producing Reactive Powder Concrete?

When using traditional method of curing not give the satisfy results. Sometime, using the same methods of some researcher didn't give the same results.

20 November 2018 7,665 7 View

HMM for maternity dataset using R?

I have attached the simplified form of my data. The variable "Gender" will be the hidden state in our model and "Pregnancy Outcome" will be the observation. What is confusing me is that I don't...

18 September 2018 3,527 1 View

How we can build a learning cloud database ?

Dear Freinds i search to build a learning cloud database. i need that the learning steep be with neural network algorithm. can you help me by some references or applications? thank you

21 April 2018 5,745 2 View

Why C-V shows a serious frequency dispersion in the case of Al2O3/GaN stack?

In the case of AL2O3/GaN stack a serious frequency dispersion is observed (Fig1) whereas this problem is negligible in the Al2O3/Si case (Fig.2). Moreover, the increase of the capacitance area...

18 June 2017 4,180 3 View

Taper space of cylindrical Reflector?

26 March 2017 3,671 9 View

Reconfigurable power divider?

The idea consist to create a switcher from a power divider using varactor diodes to adjust impedance adaptation. For a 6 ways power divider, four outputs works well but two output don't work...

14 September 2016 9,975 14 View

What is the status of bread making and more bakery foods with the use of insect flour/powder?

Insects have been consumed by human diet since prehistoric times. At present, the idea of looking at insects as food has been getting traction worldwide, also in response to increasing food...

03 March 2021 6,223 5 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

Does anyone know to clarify these changes?

01 March 2021 1,290 2 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

I have need of XRD graph analysis software for phase identification. Can you please provide links for software tools which can be downloaded?

i am trying to download x'pert high score software, but can't download it. please do suggest software for phase analysis

24 February 2021 5,687 4 View

Why the CHi^2 is close to zero with a bad fitting but the Rp and Rwp are still high?

I am refining my XRD data using in FullProf program. The intensity of the modulated X-ray peaks is almost flat. I tried to adjust the peak intensities but unsuccessful. What is the reason? I guess...

23 February 2021 2,304 4 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View