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

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 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