Pourya Alipour Atmianlu

3 Questions 6 Answers 0 Followers

Questions related from Pourya Alipour Atmianlu

Why does our stiff biochemical ODE model in R produce unreasonable results (negative values, NAM) despite using solvers like lsoda, vode, and rk4)?

We have developed an ODE model comprising 25 interrelated equations with common coefficients. This biochemical model, applied in wastewater treatment, is characterized by stiffness. Utilizing the...

07 July 2024 7,034 4 View

What is it's difference between lsoda method in R vs. ODE23 or 45 solver in MATLAB?

What is it's difference between lsoda method in R vs. ODE23 or 45 solver in MATLAB.(especially in wastewater treatment and biochemical processes) I am currently engaged in the development of a...

25 June 2024 9,056 2 View

What model or software should I use to get the connection of qualitative data or codes(qualitative data is a series of titles or texts in maxqda )?

I have 7000 qualitative data with different titles which I have coded in maxqda software. What model or software should I use to get the connection of these data or codes? Meaning of qualitative...

23 March 2023 5,463 5 View