Yambo on Optical properties?

I get this type of error when runing bulk silicon. But when i run the 2D and 3D examples on the YAMBO examples, I manage successfully. Why? /\ \ /\ \\ _ \ /"\_/`\/\ `\ /\ _`\ \ `\`\\/"/ \...

07 August 2018 1,486 0 View

BoltzTraP error after substitutional doping?

Hello all, I am trying to generate the the .intrans file after 2% doping but i cant. I get the following error. Why? Traceback (most recent call last): File...

06 July 2018 1,433 4 View

Boltztrap Code for thermal Expansion?

05 June 2017 4,507 3 View

Calculating e-v. dat ising phonopy code?

05 June 2017 7,901 1 View

Thermal conductivity, thermal expansion and thermal resistivity.?

04 May 2017 1,900 3 View

Enthalpy vs Pressure?

when I plot the Enthalpy vs pressure graphs for different phases, is it a must that they cross each other?? is that the only way of testing phase transition? I have my graph but they aren't...

02 March 2017 4,620 0 View

ERROR ON script?

Hello everyone, I am running a calculation on Quantum Espresso and am getting the error below, what could be the problem? This run was terminated on: 16:27:35...

11 December 2016 3,249 0 View

Can thermo_pw calculate the elastic properties os solids?

I am using thermo_pw for murnaghan fit but if i try the same to elastic constants calculations, it fails? why? what is the best environment it should work in?

11 December 2016 9,919 0 View

VC_relax or relax?

Could someone give an explation on VC_relax and relax. Am using Q.E. computer code when do we use each? Consider a unit cell and later on a dopped super cell.

11 December 2016 1,447 0 View

Exchange Correlations/Pseudopotentials?

10 November 2016 10,028 1 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

What are the methods used for CNT..?

Respected Professor's i hope you are doing well and happy. i need some information about carbon Nanotubes. before blending the CNT with the matrix the CNT has been introducing in some treatments....

24 February 2021 5,383 5 View

Any easy method of analyzing vitamin D in foods by HPLC?

Looking for method of extracting and analyzing vitamin D in foods by HPLC

24 February 2021 7,524 7 View

How to clean up TEM grid with plasma cleaner?

I need to clean the hydrocarbon contamination on the carbon substrate of TEM grid. However, I heard that substrate could be broken by the powerful plasma. My substrate is pure carbon, with ~3nm,...

23 February 2021 3,262 5 View

What are some underexplored theories and concepts in Activated Carbon as A Water Filter?

Hi, me and my team mates are currently planning to pursue the topic of Activated Carbon from Coconut as a Water Filter. And we would like to ask for your suggestions and knowledge on what specific...

22 February 2021 6,569 3 View

What are some underexplored theories and concepts in Activated Carbon as A Water Filter?

Hi, me and my team mates are currently planning to pursue the topic of Activated Carbon from Coconut as a Water Filter. And we would like to ask for your suggestions and knowledge on what specific...

21 February 2021 7,561 4 View

What properties of water shall be analyzed and evaluated to test the effectiveness of activated carbon?

I would like to ask what other properties of water (pH and such) shall be analyzed and evaluated to test the effectiveness of activated carbon from filtering the contaminants present in the water?

20 February 2021 9,422 8 View