What is the undercooling temperature for pure iron?

I am working on solidification of metals. Iron/steel has been intensively studied. Generally all the steels contain impurities and intermetallics or precipitates. Therefore, they can nucleate...

04 May 2019 8,754 2 View

Definition of interfacial energy at elevated temperature ?

The interfacial energy of two solids at 0 K is well defined. However, what is the definition of interfacial energy between, e.g. a solid and a liquid at elevated temperature? What is the role of...

06 July 2016 5,341 2 View

What is the best atomistic potential to simulate light metals in the liquidus and liquid/solid interface?

I am going to perform simulations of atomistic molecular dynamics simulations on bulk liquid and iquid/solid interfaces for light metals, such as Mg, Al, etc. What are the best potentials for...

01 February 2016 9,561 4 View

Any suggestions about doping concentration?

Dear everone, I have a simple question about the definition of doping concentrations. For example, one presents his/her doping formula for a complex crystal as: ABmCn:X. Then the author states...

01 February 2015 7,127 11 View

Publications: Generallized/popular or specialized one?

I have been puzzled by a question about the choice of a journal for research results. Nowadays, many researchers choose a popular journal (with a high impact factor) rather than a specific...

11 December 2013 6,884 7 View

Impact of Na+ and Cl- ions in aqueous solutions on the energy gap?

Is there any difference in the electronic energy gap between a pure water and a low-concentrated salt aqueous solution?

09 October 2013 7,417 0 View

Can someone help me and tell me about the difference between a surface of amorphous silica and a stable surface of quartz (crystalline silica) ?

Topologically both a-Silica and c-Silica are composed of SiO4 tetragonal coordination and O-Si2 bridging bonding. Should there be significant differences for the Si and atoms on surfaces ?

03 April 2013 2,971 11 View

Does anyone knows the solute energy of Ti in liquid Al ?

Ti can dissolve in liquid Al at low concentration. I'd like to know whether there are any experimental measurements or theoretical simulations on this issue. Thank you very much in advance.

01 January 1970 6,506 6 View

How to analyze a particular region of my simulation box in GROMACS?

Hi, I am using GROMACS 5.1.4 to simulate water in contact with a surface. I am only interested to calculate some properties of water near the surface. Let's say at a distance of x nm from the...

03 March 2021 9,989 2 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

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

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

Please. Could you help be in implementing Fractal Discrete Cosine Transform algorithm in Matlab?

I do need the Matlab code of Fractal Discrete Cosine Transform (FDCT). Can anyone who has already implement this code, help me with the implementation of this transform?

24 February 2021 5,602 2 View

How to formulate Energy minimization in Molecular dynamics simulation for alloys using meam potential?

during MD simulation, the atoms are not moving as per required. The problem (as per my observation) lies in energy minimization technique. upon application of tensile strain in x or y direction,...

22 February 2021 380 5 View

Magnetismic Gravity in the universe?

MAGNETISMIC GRAVITY What is magnetism? Something magnetic has a + and - charge. If 2 + or - are pushed if + and - are pulled. But what is the main reason for this? Why does magnetism have a pull...

21 February 2021 9,538 3 View

Has anyone succeeded in capturing uranium atoms in a fullerene structure?

Additional questions are: What are the encapsulating atoms? How difficult was the process and what rates were achieved? What factors most seriously affect the economics?

20 February 2021 3,134 5 View

How to get/count refractive index in gasses?

20 February 2021 8,202 6 View