What type of analysis we can do to except band gap measurement using UV-visible spectroscopy?

I would like to do first principle studies(using DFT) for this technique to compare experimental and theoretical value. Thank you.

09 October 2014 1,699 3 View

How to study the Dielectric and Ferroelectric properties using PwScf calculations?

I am good at DOS, Band structure and phonon studies. I would like to extend my studies to Dielectric and Ferroelectric studies. How to find the polarization in the material?

07 August 2014 9,925 5 View

Which software is better for refinement either Fullproof or Maud?

06 July 2014 7,640 5 View

What is the good software for nonlinear curve fitting rather than Excel and Origin?

What is the good software for nonlinear curve fitting rather than Excel and Origin?

04 May 2014 9,086 10 View

Does anyone know about DFT summer schools?

I want to attend DFT summer schools. If anyone knows please let me know the details. Is there any website for DFT related schools?

02 March 2014 9,885 0 View

How can we determine if a material is an Insulator or a Semiconductor?

My material band gap is 2.86 eV. I am confused as to how to confirm whether it is a Insulator or Semiconductor. In literature it has not been made clear.

01 February 2014 9,883 10 View

Can any one help with dielectric relaxation and conductivity studies?

I am new to this area. I would like to study these concepts from beginning onwards.

11 December 2013 3,487 9 View

What software to use for Raman and IR theoretical modes?

Is there any free software to find Raman theoretical modes? I know Gaussian 3 package but it is a licensed version.

10 November 2013 413 3 View

I would like to know the ferroelectric perovskites names and their spontaneous polarization?

I would like to know the ferroelectric perovskites names and their spontaneous polarization.Could you suggest me any book or website?

10 November 2013 1,448 7 View

Vibrational frequencies - can anyone help?

How to find the vibrational frequencies using Pwscf? I have taken Experimental Raman spectrum. I have to assign the modes (A1g, B1u,B2g and A2g etc) for each peak in spectrum. Example given below.

10 November 2013 5,935 25 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View