What is the temperature pressure profile for a methanol water mixture?

I have a methanol-water mixture and I want to know how temperature changes pressure with varying methanol-water percentage (v/v)?

23 November 2020 1,585 1 View

How to use constraint in Rietveld refinement?

I am working on spinel ferrites (AB2O4). Since cations in spinels can occupy both tetrahedral and octhedral sites, I need to find out the amount of cations occupying the tetrahedral and octahedral...

28 June 2020 3,677 1 View

How to use more than one instrument driver in a single labVIEW task to measure input vs output curve?

I am trying to measure magnetostrictive strain as a function of applied DC magnetic field. For this, I am using NI9237 module sitting on a chassis for strain measurement, and a lakeshore 425...

29 January 2020 2,862 3 View

Which nanoparticle is suitable to target brain mitochondria ? and How to confirm the drug loading?

My test drug is insoluble water ( lipophilic). I want to load the drug to target brain mitochondria? 1. Which nanoparticle will be more appropriate? 2. how to confirm the drug loading?

19 March 2019 2,943 1 View

How to determine the r1, r2 values of dual mode MRI contrast agent when T1, T2 relaxations are for two different compounds (sample is composite)?

I have developed a nanocomposite of two different systems. Individually, one of the systems is a good T1 contrast agent and the other is a good T2 contrast agent. Interestingly, both of them...

17 November 2017 391 3 View

How to carry out STL decomposition in matlab for daily climate data? If I want to LOESS algorithm, then how to know what parameters to be used?

I need this to remove seasonality from the historical daily data in order to forecast daily values for the future period.

08 August 2017 6,116 1 View

Can R-R interaction in orthoferrites become predominant with high rare earth concentration and what is the effect of high temperature?

Many articles states about three interactions (Fe-Fe, Fe-R, and R-R) in orthoferrites either at or below Neel Temperature. Not many evidence were found regarding the predominant interactions at...

02 May 2017 852 1 View

How the value of surface layer (skin) capacitance of a crystal differs from that of grain boundaries and grains?

It is reported that several important pervoskites like SrTiO3, BaTiO3 have surface layers that are structurally different from the interior of crystal. Further, it can show transition similar to...

25 August 2016 1,036 7 View

How do I get the topology data (and parameter) for alpha-ketoglutarate (AKG) and any other modified nitrogenous base?

Hello! I have just started NAMD to run some simulation. Going through the tutorials i find that for generation of a PSF file I need to call a specific topology file. I have found various such...

20 June 2016 9,847 3 View

Can the loss peak shift towards the lower frequency side with increase in temperatutre?

I have measured the frequency variation of Z" at different temperature above the room temperature and observed a peak in Z" spectrum. Generally, frequency corresponding to the maximum of Z" i.e.,...

31 May 2016 9,130 2 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

If the electron is a wave, then what is its nature? Is it an electromagnetic wave?

If the electron is a wave, then what is its nature? Is it an electromagnetic wave? Thank you very much,

17 February 2021 9,024 4 View

Is there a way to use waveguide ports for circular antenna design in CST?

Hi, whenever i use circular array i get this error "Waveguide ports must be aligned with Cartesian coordinate planes for the transient solver" Does anyone use circular array with waveguide ports?...

09 February 2021 3,609 8 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

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

Design parameters of L1 frequency Helix antenna?

Could I please get the guidance on Helix antenna operated from 1.5 - 1.8 GHz. I am designing in hfss and not able to cover 1.5 GHz. Could I get papers or suggestions on numbers I use to cover this...

02 February 2021 622 7 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

VSWR is shooting to 2.1 or even 2.3 in UHF dipole antenna, why?

So, I have a design, two dipoles working at UHF and VHF. We fed using a diplexer. I am having difficulties with the testing using network analyzer. VHF passes but UHF, specially at 400 MHZ, the...

26 January 2021 8,743 8 View

Can I simulate Ferrite in HFSS?

I have a design with 2 dipoles working at different frequencies joined in one system and separated by Ferrite. I think, Ferrite was used to minimize the interference between 2 antennas as much as...

25 January 2021 5,918 3 View