Whether the X-ray source and electron source must be coherent for XRD and electron diffraction?

Whether the X-ray source and electron source must be coherent for XRD and electron diffraction? For X-rays emitted from X-ray tubes and electrons from electron guns, the photon and electron...

01 July 2020 540 9 View

How to get the eqution of the covariance matrix Rk based on residuals?

How to get the equation Qvxk=Rk-HkQxkHkT by applying the error propagation law to vzk=(E-HkGk)dk?

10 December 2019 8,315 1 View

How can I search a substructure in a big structure?

Hi, I have a cubic MD simulation box containing 56 molecules, the positions and orientations of these molecules will change during the simulations, and I have another crystal cell containing...

31 July 2019 3,021 1 View

Can you recommend me some chapters and articles about III-V solar cell manufacturing?

I want to learn the fabrication of III-V multijunction solar cell details.

03 December 2018 3,490 3 View

Why sometimes in EN measurement [ZRA mode], only current or potential signal shows transients, not simultaneously in both current and potential data?

Hi, I recently got an EN record as shown in the attached image. The carbon steel specimens were uniformly corroded in general, but there were a few areas that were corroded more seriously - the...

28 February 2018 3,707 2 View

A shift in RT in my HPLC, please help me?

I used C18 semi-prep column to purify natural products. I've found the great gradient for my compound purification and ran 2 run for 50um of my sample and I have wash procedure after each sample...

06 February 2018 2,520 2 View

How to distinguish the direction of subduction by foliation occurrence of the accretionary wedge?

01 July 2017 4,283 2 View

No title

26 May 2017 7,984 2 View

What effects temper martensite embrittlement have on fatigue of steel ?

what effects temper martensite embrittlement have on fatigue crack nucleation and propagation?

10 October 2016 1,576 25 View

How can I measure cholesterol and triglycerides level in mouse liver?

we did plasma measurement of cho and tri. in our mouse samples, now we would like to measure direct level in the fresh tissues, does anyone know where we could do this around montreal area, or any...

12 July 2016 6,187 5 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View