What test should I use to compare two or three means, if data is not normally distributed but sample size is > 30 in each group?

I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...

01 March 2021 1,587 6 View

Why are there two reduction peaks in my cyclic voltammogram?

When I measured the cyclic voltammogram of palladium in the pbs solution, two reduction peaks appeared. This did not match the literature I saw. Why? And how can I find the possible reaction...

20 February 2021 2,486 3 View

How can I get rid of the bubbles in the SBS membrane?

I used methylcyclohexane/ ethylcyclohexane / n-butyl acetate mixed solvent to dissolve thermoplastic SBS & terpene resin. The mixture is then poured onto a glass substrate. After solvent...

24 January 2021 8,306 3 View

No title

13 January 2021 2,487 1 View

Which configuration of seawater treatment is better?

Hi world, I have a curious question about desalination of seawater. Since seawater contains a alarming amount of suspended solids and salt (35 ppt). Which of these configuration is more viable...

03 January 2021 2,383 2 View

Why oxidation with peracetic acid engender staining of oxytalan fibers with clastic tissue stains?

Just a quick question above, this oxidation method is mentioned by literature, but no one talked about the principle. Can anyone figure out how the oxidation works on any specific group?

20 December 2020 5,878 1 View

Is this yeast contamination and how do I get rid of it?

I received this gastric tumor biopsis and processed using standard protocol to establish gastric cancer organoids. Contamination looks like this. I have never seen this before and the culture...

08 November 2020 8,541 4 View

I am trying to design a desalination reverse osmosis membrane system. May I know is there a way to obtain the calculation steps for the design?

Designing a desalination reverse osmosis membrane system. Could someone recommend me some designing publications or a step by step calculation guide for the design? Much appreciate. Thanks :)

06 November 2020 7,565 3 View

Does any one can help to calculate viscosity using molecular dynamics. I am doing the NAMD SIMULATION using amber force field?

My system consists of ionic liquids, aliphatic and aromatic hydrocarbons. Any suggestions and any script for calculation of viscosity?

24 September 2020 6,640 1 View

Can someone suggest the method of calculating the solubility of any solute in solvent by NMR ?

By performing 1H NMR Analysis

22 September 2020 5,849 2 View

How do I collect online measures in a same-different task?

The same-different task requires to subjects to indicate whether a pair of stimuli seen or heard are the same (say AA or BB) or different (say AB or BA). Researchers often collect offline measures...

20 February 2021 9,226 2 View

Can I get the design of circular cylinder to fix thermocouple on the surface and cartridge heater in core ?

Respected Scientific Community. I'm interested to carry out experimental studies on a circular cylinder. But even after doing literature review I unable to get the exact design of the cylinder...

10 February 2021 6,221 1 View

What are the applicable reinforcement learning based control methods for systems that have control delay?

I am studying the experimental application of reinforcement learning (RL) based control methods. For that reason, I modeled a nonlinear system without delay and trained the RL agent. In this...

02 February 2021 7,999 3 View

What could be the reason for XRD pattern starting from very high counts/intensity at 3 degree 2 theta?

I am working on XRD analysis of the clay minerals from the sea sediments. My XRD pattern shows very high counts at the start of the XRD pattern (3 degree 2 theta) which is very unusual. The counts...

31 January 2021 4,493 9 View

Is it possible to prepare clay minerals by mixing pure oxides of required elements? What would be theoretical difficulties with it?

Practically this is not at all necessary. But theoretically, would hydrous/hydrothermal synthesis be enough (like mix 1 mole alumina gel and 4 mole silica gel and gently heat) or would it require...

26 January 2021 6,403 3 View

The litter effect and what can I do to avoid it?

My thesis involves experimental study with Wistar puppies. I am dividing the puppies equally in relation to the groups. However I only have 4 mothers and I will use all of their puppies. There is...

25 January 2021 6,965 3 View

Can we use the single-elimination tournament method as the basis of an experiment design?

I want to conduct an experiment in the field of Human-Computer Interaction, where I test the perception of users about which image is better using different camera lenses. In the experiment, I...

18 January 2021 779 2 View

How can I get oil properties in 300-30000K temperature range?

I need thermophysical and electrical oil properties to investigation of DC discharge in oil. Are multicomponent mixture models effective and precise in such calculations? If yes, what MC-modells...

04 January 2021 9,080 8 View

How can I realise the separation of clay mineral part from soil ? and what is this process called ?

Hey; I am looking to work on clays in my soil samples, So I need to extract them first. I know that I should first remove all the bending agents that make the clay sheets stay connected like (...

24 December 2020 7,082 2 View

How to extract the different components at a specific frequency between two spectra?

Dear everyone: Hello! Sorry that my question may take up your valuable time. Recently I have a technical problem in the data processing. We have conducted a series of wind tunnel tests in order...

18 December 2020 8,847 2 View