What does two peaks in the melting peak (from DSC measurement) of a single element single crystal suggest?

During a DSC run of a single element material, its melting peak was found to be split into two (say peak-371 C and peak 2 - 371.8 ). what can be the reason for such distinct splitting of the...

03 April 2019 3,949 5 View

What is your opinion on the recent unpublished work by an Indian group titled 'Evidence for superconductivity at ambient temperature and pressure'?

I have looked at the paper thoroughly seems excellent results but still can't believe it can be possible. Need you opinion.

06 July 2018 702 6 View

What is WHH equation for superconductors?

Hc2 (0)=-0.69Tc (dHc2/dT)Tc In the above equation why does the value 0.69 comes up.

01 February 2016 9,555 4 View

Which systems show decrease superconducting transition temperature with increase in applied pressure?

Which systems show decrease superconducting transition temperature with increase in applied pressure?

01 February 2016 9,355 2 View

Can we calculate pinning potential Uo from R-T curves under perpendicular field in low Tc superconductors?

I have seen papers on YBCO and BSCCO or Fe based (Tc ~ 40 K) superconductors. But I hardly see any paper on low temperature bulk superconductors. I have also come across few papers on Low...

31 December 2015 6,668 13 View

Why does a semiconductor when heavily doped become metallic (temperature independent) at very low temperature?

Taken a doped semiconductor at high impurity concentration such that the impurity states are extended in nature, as we lower the temperature, resistivity show weak temperature dependence i.e. very...

07 August 2015 9,534 13 View

Why do we need Reitvel refinement for XRD data analysis?

Why do we need Reitvel refinement only for powder samples? Can it be used for 1.5 micrometer thick polycrystalline film? If it is necessary for thin films, what information can I extract from it?

05 June 2015 8,336 6 View

I need a paper, please download it for me

http://onlinelibrary.wiley.com/doi/10.1002/polb.1993.090310310/abstract

01 February 2015 5,344 1 View

How do I convert emu into emu/cm3 in the ZCF and FC plots for superconducting thin films?

(1) I have done some FC and ZFC measurements on my superconducting thin films of area 3 mm x3 mm and thickness 1.5 micron, deposited on Si substrates , what I get from the VSM on the y axis is...

31 December 2014 9,919 4 View

Are there any precautionary measures I need to take while trying to measure B K edge in 1.5 micron thin film of diamond doped with 4% boron?

I have basically grown a thin film of diamond with boron content at extremely high concentration. I want to study the depth profile of the concentration of boron in the film, I also want to...

31 December 2014 4,877 4 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

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

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 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

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View