What is the most efficient way of computing the inverse of a very large sparse matrix?

I need to multiply the inverse of a matrix A to another matrix B. If B were to be a vector, I would simply solve a linear system Ax = B to get the product x=inv(A)B. With B being a matrix, I...

29 April 2020 10,001 12 View

What top journals would you recommend that deal with gender relations and protection of family but are not totally feminist?

Many gender or feminist journals are pro-feminist and decline to publish essays that treat gender relations without supporting feminism or which place significant emphasis on the protection and...

12 January 2019 1,759 8 View

What are the challenges & possible techniques for developing Autonomous Learning Robots in a dynamic, stochastic & partially observable environment?

I am working on Autonomous Learning Techniques for robots. Assuming a robot is deployed in an unknown environment, what techniques could help the robot explore this environment and build its own...

15 November 2017 6,988 3 View

How can Machine Learning be applied in Intelligent Tutoring System (ITS)?

By this, I mean how to make an intelligent tutoring system learn a student's approach to questions and understanding based on previous experiences. Having the capacity to know at hand likely...

11 February 2016 3,493 4 View

Does anyone have the English version of the de Saint Venant paper in which he derived the channel model?

I need the English version of this paper which was publish in 1871.

27 August 2015 5,576 2 View

Anyone know how to use bladegen in ANSYS?

I am trying to design a turbine stator with a unique internal cooling structure and I need a way to create the blade in ansys, or import it to ansys for testing. I found ansys has a bladegen...

26 February 2015 3,759 3 View

Does anyone know of any freely available tool (pre- and post-processor) that can be linked to a C++ solver?

I need a well developed pre- and post-processor that can generate complex meshes and provide all the functionalities needed to solve flow problems in it. And also allow visualizations. The goal is...

11 February 2015 2,728 15 View

Does anyone have experience in modeling strategy of relaxation?

Given a PDE model with some constraints restricting the range of values of model quantities, how does one apply the idea of relaxation to such a model? Any idea or references on relaxation idea of...

22 September 2014 1,366 11 View

What condition(s) hold on fluid particles across a line or surface inside a fluid domain?

Consider a 1-D flow along x-axis with z-axis in vertical direction. The fluid domain is bounded below by a fixed bottom at z=b(x) and above by free-surface at z = h(x,t)+b(x), with h= height of...

16 August 2014 7,102 5 View

How to combine SVM and expert system?

How do I combine support vector machine and some kind of expert system method in building a hybrid algorithm for best extracting matching fields in a big pool of data like legal cases for making...

26 June 2014 539 2 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

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 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

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