Is there a time dependency effect on fracture toughness of spot welded Dual Phase 780 DP 1200 steel specimens???

Is there a time dependency effect on fracture toughness of spot welded Dual Phase 780 DP 1200 steel specimens??? just after welding fracture toughness appears to be 1,5 kn and after some days the...

03 April 2016 7,438 0 View

What is the relevance of an excess function in a liquid mixture?

The thermodynamic relevance?

01 February 2015 8,934 7 View

How can we calculate work done in irreversible adiabatic expansion ?

01 February 2015 7,376 1 View

Why is heat capacity at constant pressure not infinite for second order transition ?

31 December 2014 3,319 3 View

Is there any material whose colour changes with time ?

is there any material whose colour changes with time.

31 December 2014 9,549 1 View

Why is there no face centered tetragonal lattice in Bravais lattices?

please explain.

31 December 2014 8,643 4 View

Why is there a cracking behavior in noble gas ?

Since at elevated temperatures slip planes also get activated and it becomes ductile why is it that it shows cracking behavior? Is it something to do with thermodynamic concept as well

31 December 2014 5,776 2 View

Is it just the interaction of particles with Higgs field that gives it the mass ??

11 December 2014 3,796 1 View

No title

In regard to schmid factor the two different angles are complementary to each other?

11 December 2014 5,189 7 View

How can I estimate the monolayer adsorption time of a residual gas?

tm ( sec) ~ 10-6 / P (0.2)where P is the pressure in mbar. what is the physical interpretation of this?

10 November 2014 1,504 1 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 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

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 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

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

How to dissolve cross-linked Amberlite IRC120 H, hydrogen form resin?

Hello all, I have used Amberlite IRC120 H, hydrogen form acidic cation-exchange resin for the ion-exchange of waterglass [sodium silicate solution -- 40% Sodium silicate (mol ratio > 3.2)...

21 February 2021 5,614 3 View