How to design a reactive extraction process in Aspen Plus?

Hello, my task is it to create a specific extraction process. There is a mixture containing water, nitric acid and hydrochloric acid. It is known, that tributyl-phosphate is a solvent, which...

03 January 2021 4,163 3 View

IC50 value from this graph?

01 January 2021 6,848 4 View

Anyone knowing any software for scientific graphs plotting?

I need some help

03 December 2020 6,794 6 View

Autodock final stage execution appears with the following error; "WARNING: Unrecognized keyword in docking parameter file"?

Hello everyone, I do have an error while executing the final stage of autodock. The following massage appears and the program puts on hold. "WARNING: Unrecognized keyword in docking parameter...

20 September 2020 8,271 2 View

What is the state of the art in chiral NNN type tridentate ligands?

What are the chiral NNN type ligands that have afforded best chiral induction in organic transformations catalysed by transition metal complexes? Any NNN type ligand and any organic transformation!

21 May 2020 1,468 7 View

Can anyone suggest good survey platforms which allows uploading of audio+video stimuli and collecting audio responses in addition to survey ?

Can anyone suggest good survey platforms which allows uploading of audio+video stimuli and collecting audio responses in addition to survey ? It would also be helpful if you could recommend few...

11 April 2020 3,147 3 View

How many imaginary frequencies does a concerted transition state have?

Say, a concerted transition state involves the breaking of two bonds and the associated making of two new bonds. Does each bond making/breaking has a corresponding imaginary frequency, so in total...

19 March 2020 5,236 4 View

How do you measure the density, surface tension, freezing point, viscosity, refractive index of deep eutectic solvents?

A deep eutectic solvent is prepared by mixing a quaternary ammonium salt with metal salts or a hydrogen Bond donor such as urea to form a liquid with a melting point lower than the melting points...

16 March 2020 2,266 5 View

Is there any direct HPLC method for quantification of PHB,PHV using C-18 Reverse Phase column?

* Crotonic acid assay is the most rapid and simple method of quantification of PHB. * Karr et al., 1983 showed extension of crotonic acid assay into HPLC for PHB detection. * While Del Don et...

13 January 2020 8,341 2 View

What is coffee bean constrast in Tansmission electron microscopy?

How can we identify the precipitate /matrix relationship (coherent/incoherent) from coffee bean contrast observed in the precipitates.

01 December 2019 3,277 1 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 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

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 3 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

How to calculate battery consumption for IoT device?

Hi, everyone I'm working on a privacy-preserving algorithm that will apply to IoT devices. So, I need to measure the power consumption by implementing this algorithm. Any suggestion, advice,...

25 February 2021 8,749 6 View

How vulnerable is water and wastewater infrastructure to cyber terrorism in an age of IoT?

Im looking for any papers, reports,articles, links etc on information on How vulnerable is water and wastewater infrastructure to cyber terrorism in an age of IoT.

24 February 2021 2,750 4 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View

Fictitious Boundary Meshing Method (FBM) in Commercial FEA software?

Is it possible to implement FBM in a commercial FEA software package, such as FEMLAB, COMSOL, or open source software like Moose?

22 February 2021 2,968 1 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View