How to measure porosity for swollen bed of particles?

i want to know volume fraction of bed after saturation? please let me know if anyone come across wet bed porosity measurement.

11 December 2018 2,735 0 View

What do you think is the most urgent research topic related to leaching of pesticides?

I would like to know scope of research in leaching pesticide due to heavy rainfall or spilling of pesticides on the surface. Is there any scope for mathematical modelling of leaching as in...

06 July 2017 3,939 27 View

If i have multiple curves y vs x then how to generalise y vs x using multiple coefficient regression?

I have y1 =f(x1,a1,b,c), y2=f(x2,a,b2,c), . . so on.,where a,b,c are parameters. then how generalise y vs x?

06 July 2017 644 0 View

What is the diffusivity of gallic acid in water?

I need to know, diffusivity of Gallic Acid in water at various temperature.

04 May 2017 4,657 8 View

How to calculate mass transfer coefficient for bulk liquid on feed and permeate side of membrane?

I want to know, kf (aqueous feed MTC) and kp ( aqueous permeate MTC) values of upstream and downstream side of flat sheet membrane, in order to calculate membrane diffusivity.

04 May 2017 5,217 2 View

Can you explain me, Darcy's equation for 3 dimensional flow through packed bed?

03 April 2017 4,372 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

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 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

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 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