question anyone can answer?

suggest how to apply for post doctorate degree?

06 July 2018 6,796 2 View

What is the difference between degradation of polymers at low temperatures and degradation of polymers at high temperatures?

Can anyone point out the difference between degradation of polymers at low temperatures (around -150 degree celsius) and degradation of polymers at high temperatures. And also can anyone highlight...

21 May 2017 7,115 10 View

How to increase the aspect ratio in the case of nanorods?

I am presently working on the synthesis of ZnO nanorods. I would like to know on what factors does the diameter and length of the nanorod depend upon? Is it dependent on pH, temperature, retention...

11 May 2017 1,637 1 View

Why is entropy of mixing not zero for ideal solutions?

Theoretically speaking, entropy should increase while mixing two ideal mixtures (from Second law of Thermodynamics). But when mixing happens at constant pressure, (deltaH) =(delta Q) and thus...

13 March 2017 647 8 View

How does Thermal conductivity of nanofluid change with decreasing particle size of the dispersed nanoparticle?

Some papers, mention that with decrease in nanoparticle size, thermal conductivity of nanofluid increases. But some papers mention the same in the opposite way, that is, thermal conductivity...

28 February 2017 1,001 2 View

What effect will the nanoparticle size have on surface plasmon resonance?

It is known that increasing the size of the nanoparticle, increases the wavelength at which surface plasmon resonance occurs? But can anyone let me know what is the reason behind this? And how...

29 November 2016 7,651 4 View

Is there any database for Sudden Caridac Arrest(SCA) predicton using ECG signals besdes (MIT-BIH) database?

We have developed some novel algorithms in our group for early prediction of SCA using MIT-BIH database. We now need some other data sets to validate our algorithms.

30 June 2014 1,151 2 View

Will the invariant features of HOS will be useful for emotional state detection in EEG signals?

We have tried to investigate some conventional features in PSD (mean, energy, entropy) and Higher order spectra (HOS). But, the accuracy of emotional state detection is not much improved using...

10 February 2014 1,762 2 View

How to increase the spatial resolution of 14 channel EEG data?

An 14 channel EEG system is used to collect the data for clinical investigation. The spatial resolution of this EEG data must be improved for better clinical diagnosis. In the mean time, is there...

10 February 2014 9,749 8 View

Why is His tag not binding to Ni, or are there any non-specific interactions?

I am trying to purify my His-tagged subunit of a protein complex using a Ni-NTA agarose column. I am doing a WT control with no His tag on the subunit of protein complex. Based on Western Blot,...

08 October 2013 8,288 26 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 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

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Statistics: include groups of respondents made by one person for analysis?

Good morning, I could not find literature about this so I am asking. I am organizing data for a questionnaire (N=100) that foresees some personal questions like level of education. For the aim...

25 February 2021 2,090 4 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

How to get/count refractive index in gasses?

20 February 2021 8,202 6 View

How to determine number concentration of polymer solutions using viscosity experiment?

I have synthesized PNIPAM (Poly (N-isopropylacrylamide)) microgels, which are copolymerized with oligo-ethylene glycol based comonomers. I have to determine the exact number concentration for each...

19 February 2021 5,205 5 View

What should a smart water system look like?

Our team is designing a smart water C&C dashboard for a smart city initiative. As we look into the current smart water system landscape, we couldn't reconcile to a definitive solution that...

16 February 2021 1,094 3 View

Glucose 6 phosphate dehydrogenase deficiency & NSAIDs - is this combination harmless ?

G6PD deficiency is quite common in our anesthesia practice in the middle east. Intraop/postop analgesia in them is an issue here. Many websites/books give contrasting advise with former advocating...

10 February 2021 4,817 3 View