What is the relationschip between Quasi-newton's method and conjugate gradient methods ?

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Are there any difference between : R and DEM (pysical model )?

R and DEM (pysical model )?

01 February 2019 7,564 3 View

how can we integrate an electronic, or mathematical technique in another purely hydrological field?

please, Consulte this link: https://www.researchgate.net/publication/267326130_Multi-site_modeling_and_prediction_of_annual_and_monthly_precipitation_in_the_watershed_of_Cheliff_Algeria Thank you

02 March 2018 7,854 2 View

What is th Relationship between Kalman filter and polynomial regression?

I Know that Kalman filtering does time series prediction, so, can we say that there is a relationship between Kalman filter and polynomial regression?or is it entirely different? Thank you

02 March 2018 771 2 View

I can't find the tools PESTCHEK.EXE and INSCHEK.EXE in the PEST distribution files to run the model in Visual MODFLOW ?

I can't run MODFLOW Model using PEST in Visual MODFLOW Flex 4.1, and i can't find the tools PESTCHEK.EXE and INSCHEK.EXE in the PEST distribution files to run the model , Is there any help,...

01 February 2018 2,189 5 View

What is the most successful model among these three: SWAT, GSSHA, HSPF, why?

What is the most successful model among these three: SWAT, GSSHA, HSPF, why? to predict sediment concentration

01 February 2018 3,282 5 View

Is it possible to control the loss of water with SWAT?

Is it possible to control the loss of water with SWAT? If yes, how? Please thank you

01 February 2018 8,003 5 View

How can we study spatial hydrodynamic variation from Markov chains method's?

Modeling, Markov chains

01 February 2018 8,091 4 View

What is the relationship between the probability of transition and modeling to the order of Markov chains?

probability of transition ,modeling, Markov chains

01 February 2018 6,846 5 View

How can we inclusing of model error in hydrological , particularly for if a nonlinear, and more chaotic model was implemented ?

With application of kalman filter , How can we inclusing of model error Q ?

01 February 2018 1,772 2 View

Who worked with Prelis to generate the non-normal data for the simulation of structural equation models?

Who worked with Prelis to generate the non-normal data for the simulation of structural equation models and what is the relationship between Lisrel, Prelis, and Simplis? Thank you for your answer...

01 February 2018 7,773 2 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Ethylene glycol is newtonian or non newtonian fluid?

Some sources say it is treated as Newtonian as ethylene glycol has a higher viscosity than water, which affects the flow characteristics in simulations. But some also say it is non-Newtonian.

09 August 2024 2,111 2 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Stability of the Solar System: Insights from Einstein’s Equations ?

The stability of the Solar System is a complex subject that blends the classical framework of Newtonian mechanics with the modern insights provided by General Relativity (GR). Understanding this...

07 August 2024 2,569 1 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

Weak DAPI staining after immunohistochemistry - how to improve?

After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...

05 August 2024 9,637 2 View

If we are using snowball sampling technique, how do we justify the true representativeness of the sample statistically? is there any statistical test?

Are there any statistical methods to justify your sampling technique using SPSS or AMOS?

05 August 2024 9,153 4 View

Do you know any references for analyzing stochastic fiber orientaion composites ?

Hello everyone I am looking for one or some books for propertes and behaviors of stochastic fibre orientation composites. unfotunately I could not find any suitable reference for thias by...

04 August 2024 3,461 3 View

How to isolate lymphocytes from mouse spleen?

I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...

04 August 2024 9,913 7 View

What are possible strategies can be used to analyze data under sequential explanatory mixed method approach?

Better ways to analyze the qualitative and quantitative data in a sequential explanatory mixed method approaches

04 August 2024 2,703 6 View