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

Solute energy of impurity in liquid metals from first-principles ?

08 September 2017 4,358 0 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

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 separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

To date, according to health authorities, 30% of the population's diseases are initiated by drinking water pollution. Do you know this problem?

The main studies are as follows: * regular and timely receipt of information about the state of the environment using automated systems (stationary and mobile); * operational analysis of the...

23 February 2021 912 5 View

Multinomial probabilities and confidence intervals - obtaining the CI of the reference category?

Hi, Some background to my question: I have fitted 1st order multinomial Markov models with covariates. Since all probabiilties (for each row of the transition matrix) sum to 1, I estimate only...

22 February 2021 2,541 4 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 extract water soluble amino compound from after aqueous work up?

4-Dimethyl amino pyridine is used in reaction.Product formed contains amino group along with amide & is highly water soluble. To remove 4-DMAP aqueous work up done. Please give solution. Thanks.

21 February 2021 1,883 1 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