Any list of ISI open access journal in Operation research,applied mathematic?

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09 October 2017 5,464 3 View

How can I solve scipy installation error?

I try to install scipy via pip but I face this error: [31mException:Traceback (most recent call last): File "", line 2, in File "C:\Users\user...

06 July 2017 2,308 2 View

What does this error means"static function 'void populatebynonzero(IloModel,IloNumVarArray,IloRangeArray)' declared but not defined"?

I am using c++ to solve a simple linear model ,however there is a fatal error when compiling program: /////////////// #include ILOSTLBEGIN static void usage (const char...

05 June 2017 2,019 1 View

What is dereference of regular book and edited book?which one is more popular?

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04 May 2017 8,497 0 View

Does anybody know benders decomposition with GAMS could help me?

Hi,I am using benders decomposition algorithm with GAMS for lot size problem,however there is a problem finding suitable lower bound and upper bound. anybody expert which could help me?

03 April 2017 373 0 View

Is it normal in using the the weighted sum method which some of solution found are not Pareto point??

I have tried to find Pareto point in multi -objective model with the weighted sum method ,however when I change the value of weights I observed some points do not have trade-off. Do you think is...

01 February 2017 7,119 0 View

What does this statement means in GAM"solved to optimality(within gap tolerance optca)?

I have a MIP problem,tried to solve it with GAMS (CPLEX solvduring setting different parameter I have found two kind of output in GAMS,(attached figures). one is:solved to optimality another one...

01 February 2017 8,440 0 View

Is it normal in acceleratedbender decomposition algorithm to reach convergence before second iteration?

I am using accelerated bender decomposition algorithm which lower and upper bound reach convergence before second iteration ,is it normal such as case? ,as I have attached file,it is shown after...

31 December 2016 9,020 6 View

Hi,can anybody introduce me any suitable website for creating online registration page?

I want to promote an event that need to register online,anybody knows any online website for creating free ?

11 December 2016 1,943 2 View

Why in large scale cases GAMS solver can not find feasible solution?

Greetings,in some cases GAMS solver can find optimal solution for small scale ,however with increasing scale of problem ,solver are not able to find a feasible solution even we have same...

11 December 2016 7,181 0 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

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 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

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 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