Is it possible to do Reitveld Refinement on single crystal XRD data?

I tried to do single-crystal Rietveld Refinement on my single-crystal XRD data using the option "refinement on single-crystal data/ integrated intensity data" in Fullprof but it is giving error...

30 January 2021 7,813 3 View

What will be the impact on Antenna performance to shift the resonant frequency by RLC Matching network?

There is always a possibility to shift the resonance frequency by adding a RLC matching network. I wonder what will be the consequence on antenna performance (axial ratio, gain)? If there is no...

13 September 2020 5,187 3 View

Axial ratio shows different result at different ortogonal setup. What could be the reason ?

17 June 2020 5,332 3 View

Firm survival and mortality: How to relate both?

I have two data sets 1. Age of all the surviving firms at any given point of time. The age distribution is an exponential function 2. The age of all the firms which died at a given point of time (...

01 February 2020 3,542 1 View

Why Antenna shows negative gain even though it has very good matching?

I am aware of the fact that electrically small antennas are poor radiators with very small gain and low efficiency. One main cause of this is poor matching. An extremly electrically small antenna...

19 January 2020 5,285 9 View

What is the impact of image current from ground plane on patch antenna? I wonder how it radiates if ground plane is very near to radiator?

As we know, patch antenna is combination of two magnetic dipole. If we place a perfect electrical conductor near a dipole, antenna performance will suffer significantly. Then how a patch antenna...

27 November 2019 7,597 5 View

I am getting two peaks at 702 and 705 eV for Fe 2p scan of a composite made from Fe-salen.how it can be explained?

the pure Fe-salen spectra is in conformity with literature,but the composite is showing two extra peaks at 702 and 705 eV. Can anybody explain about why the peaks are coming.

23 July 2019 5,710 3 View

What will be the cororidinate(theta and phi) to evaluate the axial ratio?

I have designed a circular polarized antenna. But , I am confused with cor-ordinate system. In some angel it shows less than 2 dB axial ratio and some other point it shows more than 10 dB like a...

23 May 2019 2,175 7 View

Why there is a big difference in between realize gain and gain in my design?

I have designed a multiport antenna. Where as, I have 2 dB Gain but realize gain is -6 dB. Point to be noted, S11 is really good. I have -25 dB return loss at my desired frequency.

22 November 2018 6,165 17 View

Bands in western blot are behaving like GHOST!!!!!!!!!!!!!!!!!?

I am doing western blot and after development I can see that one/ two lanes have no band. Perhaps, next day I am doing same gel run with same sample with no change in protocol, this time another...

25 September 2018 8,325 3 View

How COVID-19 has affected mental health?

The pandemic has led to depression and anxiety and its negative effects shouldn't be ignored. However, it has also led some people to become more resilient! What do you think? Thank you.

21 February 2021 4,733 19 View

How to calculate the acceleration/velocity of different molecules in an MD Simulation?

Hi, If I am performing an MD Simulation in which the two groups/molecules are moving in a direction on applying a force on the system, how would I calculate the velocities/acceleration of the two?...

08 February 2021 9,525 4 View

How to improve results of system identification procedure?

Hello, I'm performing system identification of the lateral closed-loop dynamics of a quadrotor. My model receives a setpoint and should return position and acceleration. I've proposed a second...

07 February 2021 9,791 2 View

An interactive strategy for teaching children with autism to focus on specific nonverbal social cues to promote their social skills, of?

An interactive strategy for teaching children with autism to focus on specific nonverbal social cues to promote their social skills

01 February 2021 8,782 3 View

Is there any dataset related to depression detection using social media data?

I am doing my research in depression detection using social media data. can any one suggest me where I can get the dataset for this.

20 January 2021 9,996 2 View

Interpreting regression findings prior to inclusion of control variable?

I'm looking for advice on interpreting a statistical relationship - it's for a paper I am reviewing. (Variable names have been changed). It was found that: [IV anxiety + control variables y and...

06 January 2021 558 3 View

How to get the natural frequencies and mode shapes using several acceleration data?

I am using FDD (code I used - https://uk.mathworks.com/matlabcentral/fileexchange/50988-frequency-domain-decomposition-fdd) to extract the natural frequencies and mode shapes using the...

03 January 2021 4,038 2 View

I am looking for a standard ?

Dear Researchers, I am a researcher and I am working on a Xenon accelerated aging of a polymer and I need the ASTM G 155 standard. I will be grateful if someone can share it with me. Best...

28 December 2020 549 2 View

Questionnaires in French and Italian?

Hi to everyone. For my Master's Thesis about ASD in Switzerland I need some questionnaires in French and Italian, as I already have the the German versions. Maybe someone knows if there are...

07 December 2020 3,943 2 View

Does anyone know if there is a faulty beaing signal generator available in MATLAB?

Hello everyone, I am trying to implement an algorithm to detect possible damage at a bearing. In order to test my algorithm, it would be helpful to generate faulty bearing acceleration signals?...

07 December 2020 1,483 3 View