An article on the Iranian state's civil liability in the COVID-19 matter needs supervision; Is anyone interested in collaborating?

Hello. An article on the Iranian state's civil liability in the COVID-19 issue has been written in collaboration with a friend and a comparative look at law and biology. The article is ready to be...

15 February 2021 2,906 2 View

Is it possible to report hydrodynamic loads on different parts of an ocean vehicle while 6DOF motion analysis in Ansys Fluent is running?

It seems a 6dof UDF containing vehicle characteristics such as mass and moments of inertia can be used for specifying a boundary as reprentative of ocean vehicle. It is required to have...

03 February 2021 7,726 3 View

How to determine the pH pzc (point of zero charge) for metal-organic frameworks and Organoclays?

I need to answer this question to continue my research.

12 January 2021 3,626 5 View

Is it possible to identify of ordered phase with x-ray diffraction technique?

I want to identify ordered phases in a high entropy alloy.

11 October 2020 5,452 4 View

How is solubility of CO2 or air in organic solvents such as xylene or cyclohexane?

For some reason, I need to inject a dispersion of an organic solvent and organoclay into a block of soil sample. the organic solvent probably is xylene.

29 September 2020 6,348 4 View

Should Quartz powder or Sand water absorption be considered for UHPC mix design calculations? How is the water absorption of the powder calculated?

07 August 2020 1,592 1 View

What is the real surface of the platinum electrode?

17 May 2020 5,493 5 View

How can I apply heat flux on edge of a layered shell in Comsol?

Hi everybody I modeled a piece of CFRP in Comsol with a thickness of about 2cm, I used the new module in Comsol 5.5 ( thermal stress in layered shells) Everything has gone well but after the...

10 May 2020 8,246 3 View

What is the best solvent to dissolve nanoclay (montmorillonite)?

I need to inject nano-clay to some kind of collapsible soil (silty loess) to stabilize and strengthen it. I can't use water since this soil is moisture sensitive and water may dissolve the bonding...

26 March 2020 1,675 3 View

How I can eliminate 50Hz parasitic magnetic field and the at same time do not affect existed DC magnetic filed?

My application is EFNMR (Earth field nuclear magnetic resonance). In this application the earth filed, which is a DC field, has the main role and should not be altered. However, all other magnetic...

10 January 2020 337 2 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

No title

01 March 2021 3,905 5 View

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

Are protein samples in SDS compatible with ELISA?

I have used an AllPrep DNA/RNA/Protein Mini Kit QIAGEN kit to extract RNA and protein from my samples. At the end of the protein purification, I resuspend my protein in 5% SDS. Will these samples...

28 February 2021 7,370 3 View

How to compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 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

Sample size determination for non-parametric tests?

How do I run a a priori sample size determination for non-parametric tests, like the Mann-Whitney U-test and the Kruskall-Wallis or other non-parametric tests that accord with the unpaired t-test...

24 February 2021 166 6 View

How to determine a priori sample size for t-test with unequal means?

I need to conduct a a priori sample size determinations for t-test with unequal means, but I don't know the sizes of the groups nor the ratio of both groups... Can I do a sample size determination...

24 February 2021 8,289 3 View

What are alternatives to factor analysis for a small sample?

My sample size is too small to conduct a factor analysis. I created my own psychometric scale for measuring Effectiveness of Support, which contains 38 items (4 sub-scales) Im really struggling...

23 February 2021 9,287 12 View

Missing Data in Pretest and Post test- Experimental Research design?

Hello all, I am analyzing some pretest and post-test data that were given to evaluate knowledge of targeted vocabulary before and after the intervention. Pretest and post-test are identical and...

23 February 2021 9,400 7 View