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

R and DEM (pysical model )?

01 February 2019 7,406 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 7,707 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 564 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 ?

01 February 2018 2,050 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 3,091 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 7,848 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 1,632 2 View

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

thank you to guide me or send me titles of books to consult them the best

01 February 2018 673 2 View

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

Modeling, Markov chains

01 February 2018 7,936 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 6,700 5 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

How to prevent ANFIS Model from negative prediction values in MATLAB?

I have input and output data set for "ANFIS modeling in MATLAB", and I am getting some negative predicted values of output in testing. However, the predicted values of output in training are...

28 February 2021 3,459 3 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View

How does an AC-DC power supply Flyback Converter Based USB Charger Model using Matlab/Simulink looks like?

I am required to learn about Flyback converters and I got stuck not knowing to full design of the power supply flyback converter Based USB Charger Model using Simulink, especially the design model...

25 February 2021 5,435 2 View

Please. Could you help be in implementing Fractal Discrete Cosine Transform algorithm in Matlab?

I do need the Matlab code of Fractal Discrete Cosine Transform (FDCT). Can anyone who has already implement this code, help me with the implementation of this transform?

24 February 2021 5,602 2 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View