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- M. Rafei, Hamid Reza Mohammadi Daniali, D. D. Ganji
- Applied Mathematics and Computation
- 2007

- M. Rafei, D. D. Ganji, Hamid Reza Mohammadi Daniali
- Applied Mathematics and Computation
- 2007

In this article the problem of the spread of a non-fatal disease in a population which is assumed to have constant size over the period of the epidemic is considered. He’s homotopy perturbation method is employed to compute an approximation to the solution of the system of nonlinear ordinary differential equations governing on the problem. The results are… (More)

- M. Rafei, Hamid Reza Mohammadi Daniali
- Computers & Mathematics with Applications
- 2007

Explicit traveling wave solutions including blow-up and periodic solutions of the Whitham–Broer–Kaup equations are obtained by the variational iteration method. Moreover, the results are compared with those obtained by the Adomian decomposition method, revealing that the variational iteration method is superior to the Adomian decomposition method. c © 2007… (More)

- M. Rafei, Hamid Reza Mohammadi Daniali, D. D. Ganji, H. Pashaei
- Applied Mathematics and Computation
- 2007

With regard to planar parallel manipulators, a general classification of singularities into three groups is given. The classification scheme relies on the properties of instantaneous centers of rotation. This method is very fast and can easily be applied to the manipulators under study. The method is applied to a planar three-degrees-of-freedom parallel… (More)

- Hamid Reza Mohammadi Daniali, Paul J. Zsombor-Murray, Jorge Angeles
- J. Field Robotics
- 1995

- Mir Amin Hosseini, Hamid Reza Mohammadi Daniali, Hamid D. Taghirad
- Advanced Robotics
- 2011

The growing interest in the use of parallel manipulators in machining applications requires clear determination of the workspace and dexterity. In this paper, the workspace optimization of a Tricept parallel manipulator under joint constraints is performed. This parallel manipulator has complex degrees of freedom and, therefore, leads to dimensionally… (More)

- S. H. Hashemi, Hamid Reza Mohammadi Daniali, D. D. Ganji
- Applied Mathematics and Computation
- 2007

This article addresses an efficient and novel method for singularity-free path planning and obstacle avoidance of parallel manipulator based on neural networks. A modified 4-5-6-7 interpolating polynomial is used to plan a trajectory for a spherical parallel manipulator. The polynomial function which is smooth and continuous in displacement, velocity,… (More)