Will PBL teaching practices still be applicable in the era of Industrie 4.0?

It seems that teaching and learning methods should be modified in the era of Industrie 4.0.

05 June 2019 6,433 12 View

Is WCASET organized by academic institutions?

I was contacted by WCASET management to serve as a Committee Member. Is WCASET a reputable conference?

01 February 2019 5,476 5 View

What is the mechanism of calcium carbonate phases under the influence of organic additives?

Malonic acid was utilized to inhibit the precipitation kinetics of calcium carbonates. It was found that higher malonic acid concentrations added into the precipitating CaCO3 solution resulted in...

08 September 2018 4,425 0 View

What are the typical UV spectra for AgNPs ?

I supervised one undergraduate student investigating the synthesis of AgNPs using extracts of Piper betle leaves as reducing/capping agents. The UV-vis spectra turned out as depicted in the...

05 June 2018 9,263 0 View

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11 December 2017 6,462 5 View

What makes a good undergraduate engineering curriculum?

A curriculum may require updating from time to time to cope with changes in education sectors. What makes a good engineering curriculum?

10 November 2016 4,380 2 View

Is concept mapping a suitable teaching strategy for postgraduate studies?

08 September 2016 8,518 0 View

How do you integrate the concept of Green Chemistry and Green Engineering into chemical engineering undergraduate curriculum?

We are considering integrating the concept of Green Chemistry and Green Engineering into our chemical engineering undergraduate curriculum. This integration, we think, will be as early as for...

11 December 2014 1,008 12 View

Would gel diffusion method (using sodium metasilicate) be a good medium for calcium carbonate growth?

We would like to investigate the influence of some organic additives (the carboxylic groups) on the morphology of calcium carbonate.

01 February 2014 4,576 0 View

Could Transport Phenomena be removed from chemical engineering undergraduate curriculum?

I am considering proposing that TRANSPORT PHENOMENA be removed from chemical engineering undergraduate curiculum. This subject is more appropriate for graduate levels, because it is heavily...

31 December 2013 982 24 View

How two melting peaks in DSC of polypropylene can be merged into one crystallization peak?

The figure shows DSC cooling (blue) and 2nd heating (green) curves (step: 10 K/min) for a commercial sample supplied as Atactic Polypropylene (APP). The heating curve illustrates two major...

03 March 2021 5,857 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View

Is there a way to tell based on appearance which protein crystal should diffract the best?

I have had unheard of success with protein crystallography lately from a super successful protein expression and purification batch. I have attained a lately reproducible vast amount of crystals...

09 February 2021 5,155 5 View

Electron density difference maps(Fo-Fc): what is the meaning of negative densities (red blobs)?

Dear community, As far as I understand, negative density features point at stuff that is in the model, but not supported by experimental data. However, in many cases (e.g. attached image), when...

06 February 2021 2,847 2 View

Aspen plus (hydrometallurgy set-up) & reactions solid-liquid ?

I have to simulate a hydrometallurgical process where there are the following phases: - leaching (solid-liquid reactions) - cementation (solid-liquid reactions) - electrowinning (energy ) -...

30 January 2021 9,225 3 View

Should the Ice 1h crystalline structure be lost during equilibration process in LAMMPS?

I have created an Ice 1h structure and am equilibrating it 100K in NVT ensemble in LAMMPS for a timestep of 0.25fs in 3000 steps. The potential used is TIP4P/Ice. Although the simulation runs fine...

26 January 2021 9,603 11 View

Is there any list that contains which stiffness/elastic modulus(Cii,Cij) effect which plane or direction of a cubic system in what way?

The value of stiffness/elastic modulus(Cii,Cjj) affects crystallographic planes in many ways like maximum shear or maximum tensile stress when stress is applied. The anisotropic materials show...

23 January 2021 2,877 2 View

Why can I not find all of my residues in model predicted by Swiss-Model?

I am trying to perform homology modeling using the swiss-model but I have found that the swiss-model gives the same number of residues as that of the template. Whereas my sequence has more...

21 January 2021 5,568 3 View