I want to simulate a system containing protein and heavy metals; which force field is most reliable for this purpose?

The protein I want to simulate has multiple heavy metals. I wanted to know which force-field I should use with GROMACS to achieve this. Most importantly, do the latest updates in the force-field...

16 February 2021 2,420 1 View

Under what conditions absorption and excitation spectra of a same species can be different?

I took absorption and excitation spectra of a same species in the same solvent. Ideally I should get the excitation spectra almost similar to the absorbance spectra. But I got the excitation...

13 December 2020 8,965 2 View

Measurement of Gain of a CP antenna?

How do I measure the gain of CP antenna inside an anachoic chamber? What should be the reference antenna, I mean it should be LP or CP? What is the procedure of measurement?

17 November 2019 336 6 View

How to obtain the sputtering yield of different species in Quaternary sputtering target?

we have prepared the CZTS thin films using single target in RF sputtering. which formula should i use to obtain the sputtering yield of different atoms such as Cu, Sn, Zn . is it possible to get...

15 October 2019 1,699 6 View

How to extend conference paper into journal paper?

I would like to know , what are the possible ways to extend conference paper into journal paper? My work is in the area of natural language processing

22 September 2019 1,246 3 View

How to obtain the crystallinity and strain in the thin film using RAMAN shift?

we have deposited the semiconducting thin film (CZTS) using sputtering. is it possible to obtain the crystallanity and strain in thin film using RAMAN spectra? which formula should i use for that?

09 September 2019 8,088 1 View

Is it possible to get different RAMAN shifts for the same sample deposited by different process parameters?

I have deposited CZTS by RF sputtering at different temperatures, pressures and powers. In RAMAN analysis i am getting peaks at 334,337,330 cm-1 is it possible to observe these kind of shifts due...

04 September 2019 5,898 2 View

I unable to enter the DIPPR parameters for liquid heat capacity of a component in Aspen Plus although parameters for TDE and other eqn can be entered?

Aspen Plus provides the option to input the T dependent liquid heat capacity parameters. Although the option exists for entering parameters for following equations: IKCAPE TDE ThermoML Barin But...

05 July 2019 8,889 1 View

Any public LFP (local field potential) dataset available?

Are there any freely available Local Field Potential (LFP) datasets available, especially recorded during motor actions?

18 June 2019 3,808 5 View

What is dual-Circularly polarized microstrip antenna array?

I had design a single antenna which is linearly polarized (Axial ratio >3 dB). Then I go for designed an eight-element array antenna using Wilkinson power divider with single Port. I got LHCP...

18 June 2019 9,826 21 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

Does the circuit modeling for planar monopole antennas using Foster canonical forms give good approximation?

Hi researchers, I am searching for some accurate way to do the circuit modeling of planar CPW-fed monopole antennas. I have gone through the literature where mostly circuit modeling is done using...

28 February 2021 7,016 1 View

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Compact antenna for the frequency range 1 MHz-5 MHz?

Hello everybody! I have a problem with developing a compact antenna for the 1MHz-5MHz frequency range. Tell me what type of antenna can be used and what books and articles to read to perform this...

27 February 2021 7,710 4 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

Efficiency of Proximity Feed Patch Antenna ?

Greetings to all of You! I have searched some research papers for the designing of a proximity coupled patch antenna. Researchers are talking about the impedance bandwidth of the antenna but...

24 February 2021 7,662 3 View

2D or 3D phased array antennas??

Dear All, I will start my PhD maybe this year regarding phased array antennas. I'm interested in to find more detailed information about 3D phased array antennas and 2D phased array antennas. Then...

21 February 2021 368 3 View

Helix antenna coupling problem?

Dealing with a helix antenna, made with flexible material and not rigid like using a PCB board or wire. At the beginning of the helix is too close to the ground plane, causing coupling. How can I...

21 February 2021 4,453 3 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