This paper presents a new architecture for implementing intelligent agents cooperating in a special Multi Agent Environment, namely the RoboCup Rescue Simulation System. This is a three layered architecture which customized for cooperating three kinds of agents to minimize damages, caused by a big earthquake in rescue Simulation Environment. Structural decision making algorithms are combined with heuristic ones in this model. One of advantage of this architecture is supporting both Centralized and Distributed multi agent systems. At the end comparing this new architecture with those which be used till now could show the strength of new architecture.

Prediction of the dynamic behavior of machining operations during the process is the main challenge of machining Simulations. Therefore, the investigation of effective parameters in dynamic behavior is of great importance. Machining vibration is one of the most important factors. This article studied the vibration of the process by developing the dynamic model of the boring bar. The high length-to-diameter ratio of the boring tool and its flexibility cause machining vibrations. The amplitude of the tooltip vibrations is a function of the dynamic characteristic of the tool which can lead to the stability or instability of the process. Tool rigidity at low diameter to length ratios is high, and in most cutting conditions the process is stable. The impact test is used to extract the tool’ s dynamic parameters and dynamic modeling of the process is developed inside the Environment of ACIS software which is a powerful Boundary Representation (B-rep) solid modeling engine and it is proposed a novel method for simulating the dynamic equation of boring bar by using a solid modeling technique in a precise geometric Environment. The mechanistic approach is used to modeling cutting mechanistic to develop the dynamic force model in the time domain. Also, dynamic time-domain parameters such as force, acceleration, and displacement in the Simulink Environment are simulated. The results confirm that the presented geometrical model by considering the tool dynamics is well capable of estimating the force signal and the chip area changes.

In Rapid Prototyping processes, a solid model of a part or product is directly obtained from its 3D model by adding successive layers. The need for costly materials and equipment, as well as repeating the process to reach the acceptable prototype, is the main obstacle. This paper analyzes and categorizes some common commercial processes and, afterwards, designs and, develops a Simulation model and, consequently, software for a selection of technology among four rapid prototyping techniques. This software offers the most appropriate manufacturing technique using an Analytical Hierarchy Process (AHP) and in respect to the designer's criteria. Moreover, quantified quality requirements according to process parameters are displayed in an interactive Environment.

Pollution and the distribution of dust in urban areas have caused a wide range of diseases. Dust is one of the Environmental phenomena that has caused adverse effects on health and the Environment. Contamination caused by dust of different origins is spread across a wide range of atmospheres. Our understanding of the mechanism of dust distribution and the turbulence in urban areas is very important, which helps us reduce the effects of these types of contaminants. Computational Fluid Dynamics models have been considered in this study due to the economical approach to research in the field of dust distribution. Due to the turbulence of the wind flow inside the city, we use the large eddy Simulation method to model this turbulence, which is widely used in computational wind engineering. In this study, we have investigated the dust in the urban area. For this purpose, the effect of the wind direction angle and the urban Environment as well as the height of the buildings on the speed distribution and dispersion of fine dust with time has been investigated in two separate computing spaces. By comparing the results between 0° and 10° angle, it has been observed that with the increase of the flow turbulence intensity angle, these turbulent characteristics lead to the dispersion and persistence of fine dust in the urban Environment. By comparing the results, we conclude that by creating an angle in the urban area due to increased mixing, the amount of dust distribution in the urban area rises.

Introduction: Musculoskeletal problems are the common complaints of patients refer to internal medicine clinics and the pain is the most important of them. There are different physiotherapy methods for reduction of pain and action potential Simulation therapy (APS therapy) is one of newest methods. The aim of this study was to determine reduction of pain with APS therapy. Materials & Methods: In 47 patients with different musculoskeletal pain APS therapy performed in 6 days each for 16 minutes and with current of 0.7-1.2 mA. Pain (VAS), Global functional status (ACR) and relief of pain (VAS) before and after study compared.Results: APS therapy reduced pain (p<0.001) and increased Global functional status (p<0.001) and increased relief of pain (p<0.005) but there was not any correlation between this reduction of pain with APS therapy and educational status and past history of physiotherapy and duration of illness in these patients.Conclusion: APS therapy is a useful physiotherapy modality for reduction of pain in musculoskeletal problems.