Which heating methods do you recommend for establishing a poultry house (oil heater, gas heater, electric heater)?

I think a gas heater is better for the lower operating costs

03 January 2021 385 18 View

Do you think that the president in Iraq should be able to change the economic situation?

13 December 2020 7,193 3 View

Should I take sample from surface or subsurface for soil analysis?

I am currently doing my final year project on Geochemical analysis of peat samples. I will be looking at parameters such as major and trace elements plus anions and cations. Should i take samples...

27 November 2020 6,668 18 View

Saffranin and fast green Staining ?

I need to stain the stem of lily flower (semi-herbaceous). is their any commercial staining that can be used directly. Also, Is their any updated procedure or commercial product (mixture) of...

18 January 2020 3,769 1 View

What is best book to start study charge transport in organic semiconductors?

Could you suggest a good book or review articles on electrical transport and mechanisms in organic semiconductors.

17 December 2018 253 2 View

Can oxalate ion oxidaise V(IV) to V(V)?

Greetings I am engaged with the preparation of VO(II) complexes with the different bidentate amine ligands and the oxalate ion. The starting complex (NH4)2VO(C2O4)2 has been prepared by...

30 August 2018 2,028 6 View

Minirhizotron images data set for root?

Hello, I'm working on olive study and I'm using minirhizotron images to estimate root density in soil profile. However, the image analysis software provide an extra data such as, root surface...

19 November 2017 5,621 3 View

Aquapoinic culture system?

Hello, When we use the aquapponic culture system, does the water that come out from the fish tanks has all nutrients (Macro and micro) that the plant need or should we add some? Thanks

11 November 2017 3,224 4 View

Can we statistically control confounding variables using tests other than ANCOVA or regression?

can we statistically control confounding variables using tests other than ANCOVA or regression? specially in variables that violate parametric assumptions, for example if i am studying the...

22 October 2017 2,896 2 View

How to draw Spiral (helix) stirrups (transverse reinforcement) in Ansys workbench??

I am modeling circular concrete column reinforced with FRP bars and spiral stirrups, I tried importing the geometry from CATIA software to Ansys but it is not working, Can I draw the model with...

18 March 2016 1,017 3 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View

Does anyone know how to plot my station to a section plot on Ocean Data View (ODV)?

I made a vertical section plot with WOA .nc file on ODV, and now I want to plot my stations (csv. file) in it. Does anyone know how to import my points to the section? They are two different...

01 March 2021 3,610 1 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 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

Is there any Machine Learning/AI algorithm that lets you predict with incomplete features without missing value imputation process?

For instance, the model is trained with A,B,C,D,E features to predict F target. Then, I want to make prediction on a new data, but with only A,C,D,E is known without doing missing value imputation...

28 February 2021 1,556 6 View