Discover research, contacts and opportunities in these interdisciplinary areas

• venkata rao Ganapathiraju

  Can someone give specific methods to convert frequency dependant viscoelastic properties into time dependant ones?

  These properties are available in books by DIG Jones, but I need to have the properties in a time-dependant manner. Any code such as Matlab code also will do.

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  • 
    venkata rao Ganapathiraju replied

    Thanks to all those who have responded. I will take these leads further. GVRao

    1 day ago
• Yujiang Wu

  I am seeking experts on on engineering, applied and computational mathematics.

  I am seeking experts on on engineering, applied and computational mathematics.

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  • 
    Bipin Musale replied

    Hello Prof. Yujiang Wu! Heartiest Greetings! I have been teaching Mathematics to the students of Engineering and computer science in India and abroad. May I know how could I help you?

    5 days ago
• Deepak Garg

  Anyone working on genetic algorithms?

  I am working on task allocation problem I don't know how to code in MatLab for problem specific genetic algorithms.

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    Deepak Garg replied

    I know nothing about mathematica.

    6 days ago
• G. Ortega

  Could anybody tell me some models or applications in which Sparse Matrix Matrix Products are required?

  I have designed a High Performance routine for computing the Sparse Matrix Matrix Product based on CUDA and I would like to knew the interest of this operation in different fields. Thank you!.

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    Wilfredo C. Flores replied

    Power Flow is one of these. With sparse matrix, the algorothm is faster.

    18 days ago
• zb Khorrami

  2d characteristic method

  Im searching for 2d in plan (X,Y coordinate) characteristic method for Euler equation. Euler equation is used steady and my parameter are steady. thanks.
• Chris Adika

  Fuzzy _pso modeling

  Anybody has used the Fuzzy pso modeler to tune a FIS?

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  • 
    Witold Kosinski replied

    Could you please be more specific, in your question? Are you asking about a software?

    23 days ago
• Deepak Garg

  Can somebody suggest me that how to use genetic algorithm search toolbox provided by matlab?

  I am trying to find the optimal solution for the task allocation problem in heterogeneous distributed computing systems having non linear objective function and certain constraints.
• Zhan Wang

  Looking for research collaboration or discussion partner

  I'm interested in applied mathematics, especially in fluid dynamics and working on whatever problems I think are fun. My recent projects focus on surface water waves and elastic waves. I have alsoI'm interested in applied mathematics, especially in fluid dynamics and working on whatever problems I think are fun. My recent projects focus on surface water waves and elastic waves. I have also worked on problems relating to the singularity structure in gas dynamics, and mutli-scale models in atmosphere. I am looking for friends with common interests.

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  • 
    Anwar Hossain replied

    Please see the list publication

    PUBLICATIONS.pdf

    Apr 20, 2012
• Ahmad Akbari R.

  Why is there no body force considered in the equilibrium equations of the RVE in the homogenization technique?

  The overall response of the RVE is obtained by solving the RVE boundary value problem under prescribed boundary conditions (either traction or displacement BC) without considering the body force.

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• Amran Hussin

  Matrix Equation

  Given n by n matrices A, B, C. I know how to solve the Sylvester equation AX + XB + C = 0 using the matlab command >> X=lyap(A,B,C) But when given A, B, C, D and E, how do we solve theGiven n by n matrices A, B, C. I know how to solve the Sylvester equation AX + XB + C = 0 using the matlab command >> X=lyap(A,B,C) But when given A, B, C, D and E, how do we solve the extended Sylvester equation AX + XB + CXD + E = 0 ?

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    Amgad Mohsen replied

    Hello Maria , I'm afraid you can't solve such a system, viz AX + X^2 B = C easily, But Kronecker Product is true to be useful as a first step, to just make the nonlinear system appearing to be easyHello Maria , I'm afraid you can't solve such a system, viz AX + X^2 B = C easily, But Kronecker Product is true to be useful as a first step, to just make the nonlinear system appearing to be easy to be programmed. I think when you use the substitution X^2 = Y you have generated another unknown matrix Y , " you have only N equations for 2N unknowns " the resulting system is under-determined. the suggestive way is to deal the nonlinear system using methods efficient for such ones. I used search method to find the "minimizing vector " for the sum of the squares subject to constraints i.e. the equations themselves, I got really very small error bounds, and stability are guaranteed for even large systems. Regards,

    Apr 6, 2012
• Mojraj Bagale

  Research on dam failure mechanisms under the fluid-solid coupling.

  What are possible mechanisms of failure at this point?
• Enrique Sedano Algarabel

  State of the art on sparse matrix storage and access?

  Hello, I have recently found myself in the need of working with very large sparse 3-D matrixes. I would like to ask you if someone can give me some hints about the state of the art in storing anHello, I have recently found myself in the need of working with very large sparse 3-D matrixes. I would like to ask you if someone can give me some hints about the state of the art in storing an accessing sparse matrixes. A quick overlook has given me some techniques like the Jagged Diagonal Storage (JDS), the transposed JDS and the Bi-JDS but, as far as I understand it, these methods require to have the complete matrix before operating. I am much more interested in dymanically storing the elements during the sequencing stage, that is, while I am generating the vaules. If the value is zero, I discard the value. If it is non-zero, I store it... Do you know any work on that? Thanks, Enrique.

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  • 
    G.z. Chu replied

    This link may be useful to you: http://www.cise.ufl.edu/research/sparse/CSparse/

    Mar 16, 2012
• Kirubagari Balasubramaniam

  Reg. speech enhancement.....How do we decompose a noisy speech into subspaces?

  In enhancing noisy speech , using subspace decomposition , practically how do we decompose

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  • 
    Kirubagari Balasubramaniam replied

    in PCA we will find the principle components. In ICA we will find mixing matrix. Is it?

    Mar 7, 2012
• Aamir Rasool

  Applications of detection algorithm ?

  Detection algorithm uses

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  • 
    M. Hafizur Rahman replied

    There are lot of applications of detection algorithms: motion detection (http://www.codeproject.com/Articles/10248/Motion-Detection-Algorithms), scale and orientation detection, face detection,There are lot of applications of detection algorithms: motion detection (http://www.codeproject.com/Articles/10248/Motion-Detection-Algorithms), scale and orientation detection, face detection, object recognition, robotic mapping and navigation, image stitching, 3D modeling, gesture recognition, video tracking, and match moving. DETECTION AND MULTI-APPLICATION ALGORITHMS: http://www.psicorp.com/technologies/chemistry/detection_algorithms.html

    Mar 7, 2012
• Harmeen Kaur Jolly

  what is the advantage of MATLAB over FORTAN?

  I know that MATLAB is used for mathematical operation ,simulating an ckt but what about FORTAN

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  • 
    Iolanda-Gabriela Craifaleanu replied

    I am using both FORTRAN and MATLAB, depending of the type of problem I have to solve. The advantages of each of them have been shown above, so I won't insist. Personally, I am still attached ofI am using both FORTRAN and MATLAB, depending of the type of problem I have to solve. The advantages of each of them have been shown above, so I won't insist. Personally, I am still attached of FORTRAN, which I have learned as a student. Code speed and syntax simplicity are the main reasons for which I prefer it. For some years, I am using "Force FORTRAN", a free IDE for FORTRAN 77/90. It comes with GNU Fortran and it can be downloaded freely from http://lepsch.blogspot.com/. However, I am still looking for a robust scientific programming solution. The post concerning Python gives very valuable information - thanks a lot, François !

    Mar 3, 2012