Pearson or spearman correlation?

if i want to test association of two continuous variables but the sample size is four, can i run pearson correlation or i have to go non-parametric with spearman ?

04 May 2020 866 4 View

Does Odb file change with different versions of Abaqus ??

I did run analysis on Abaqus, and saved the results as an odd file, then later, i set up a new abaqus version 6.14 and tried to open the one of my odd files, but i did not find any BCs of Jobs or...

08 November 2018 3,767 5 View

Egyptian public sector enterprises Implemented/under implementation of ERP application?

Hello, I'm working in a research project required a survey of Egyptian public sector enterprises Implemented/under implementation of ERP application.

09 October 2017 5,364 0 View

What is that problem in ABAQUS when checking data of solid shear wall model ?

While i`m analysing a solid shear wall subjected to vertical and horizontal loads in ABAQUS (STATIC ANALYSIS) , I got the problem in the attached file when i checked the data of my job. Please...

31 December 2016 7,664 2 View

Why do i get an error while analysing solid shear wall in ABAQUS regarding time period and increments?

While i`m analysing a solid shear wall subjected to vertical and horizontal loads in ABAQUS (STATIC ANALYSIS) , I got the problems in the attached file when i submitted my job. Please...

31 December 2016 4,796 6 View

What is the equation(s) describing relation between stress and strain in ABAQUS Manual for CDP model?

I need the equation(s) describing the relation between stress and strain in ABAQUS for concrete (The curve that exists in the ABAQUS manual) for concrete damaged plasticity (CDP) model ?

31 December 2016 9,725 1 View

What is the relation between dc and inelastic strain in CPD?

31 December 2016 1,791 2 View

Smeared crack concrete model or Concrete damaged plasticity model ?

My research is about investigating lateral deformations in shear walls with openings , I need to know which model is more appropriate for that purpose ..Smeared crack concrete model or Concrete...

11 December 2016 5,006 5 View

Where is the best location for construction joints in slabs and beams?

Where is it preferable to locate construction joint in reinforced concrete slabs and beams and why are these specific lacations

07 August 2016 936 5 View

What is the difference between column and wall in ACI ?

07 August 2016 6,839 0 View

What are the most reliable approaches to extract key continuous frames from a video, with complete automation?

I have an input video, of skin (from a microscope that means it is magnified such that blood capillaries are visible). The idea is to extract 15 sec of continuous frames from a video of 1 min,...

02 March 2021 2,735 2 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View

Can water be extracted from Olivine?

I have always been interested in geology and wondered about how unique structures of materials behave in different circumstances. I stumbled upon Olivine, the magnesium iron silicate, and heard...

28 February 2021 7,330 4 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View

Good morning research fellows, Has anyone worked with senna alata plant extract on any kind of fish?

Literatures on the piscicidal effect of sennaa alata is scanty. if you have any related litrature either in the bark, leaves or roots used as treatment to any aquatic organism please kindly help...

28 February 2021 9,138 2 View

How to arrange coordinates and extract climate dataset out of MPI-ESM-MR netcdf files?

Have a nice day everyone, I'm stuck in extracting datasets out of MPI-ESM-MR netcdf files because the latitude ranges from -3*10^6 to 3*10^6 and longitude ranges -5,9*10^6 to 5,9*10^6. Plus, the...

28 February 2021 912 3 View

What is the exact mechanism of the antimicrobial effect of local anesthetics?

The antimicrobial effect of local anesthetics has been known for more than 50 years, but it still seems to have an unclear mechanism of action. which bacteria? which concentration? etc etc. ....

27 February 2021 4,450 2 View