this article proposes composition of fuzzy sets theory with discrete-event simulation and puts it into application in order to model uncertain activity duration in simulating a real-world system. the purpose of this paper is to assess the usefulness of fuzzy simulation for modeling uncertain activity duration, especially when insufficient or no sample data is available. in this research, fuzzy ...

representations. This process highlights the parts or sequences of tasks that require excessive movement between locations and assists in taking appropriate actions to optimize the task. However, there are disadvantages that cannot be ignored. The pictorial representation of the task sequences can become complex, as it depends on task size, task dependencies, and type of layout. It is also diff...

Simulation modelling is an important instrument in Operational Research for a number of reasons. It provides a valuable tool for approximating real life behaviour and hence can be used for testing scenarios. Also the art of constructing the model itself may lead the modeller to greater understanding of the real system. When it comes to simulation there are three main methods in use, this paper ...

The numerical simulation of a Poiseuille flow in a narrow channel using the molecular dynamics simulation (MDS) is performed. Poiseuille flow of liquid Argon in a nanochannel is simulated by embedding the fluid particles in a uniform force field. Density, velocity and Temperature profiles across the channel are investigated. When particles will be inserted into the flow, it is expected that the...

■ Abstract Obtaining a good atomistic description of diffusion dynamics in materials has been a daunting task owing to the time-scale limitations of the molecular dynamics method. We discuss promising new methods, derived from transition state theory, for accelerating molecular dynamics simulations of these infrequent-event processes. These methods, hyperdynamics, parallel replica dynamics, tem...

the aim of this research is to calculate the elastic constants and bulk modulus of cu-20 wt% ni random nanoalloy. the molecular dynamics simulation technique was used to calculate the mechanical properties in npt ensemble. the interaction between atoms as well as cohesive energy in the nanoalloy modeled systems was calculated by morse et al. two body potential. also the temperature of the syste...