This paper describes the work done towards designing a computer aided system for planning crane operations on a construction site using object-oriented programming concepts. The use of object-oriented programming concepts for design is important as it facilities robust design, distributed development, modularity, reusability and easy extension of features. Based on the planning and representati...

the most important goal of each society, is to reach economic development. as the goal and agent of development, man has got an important responsibility, which responsibility is realized by way of education, specially higher education, because the universities are the main factors for progress, production of knowledge and education of specialized human forces and they play a significant role in...

The new standard ISO 14649 provides CAD/CAPP/CAM/CNC with an interface and a comprehensive high level and detailed manufacturing information. CNC technology based on STEP-NC will be the future trend, and the intelligent process planning is the core of STEP-NC oriented CNC technology. The objective of this research is to present the architecture, key technologies and implementation of STEP-NC or...

In designing product-line architecture (PLA), it is important to analyze common and variable requirements in a product family. These requirements must be analyzed not only from functional aspect but also from aspects relate to quality attributes such as performance aspect and reliability aspect. For example, if two products are required to attain different level of performance, architectures fo...

In this paper, optimal generation expansion planning (GEP) is investigated considering purchase prices, profits of independent power producers (IPPs) and reliability criteria using a new method based on hybrid coded Genetic Algorithm (GA) and Particle Swarm Optimization (PSO). In this approach, optimal purchase price of each IPP is obtained by HCGA and reliability criteria are calculated by PSO...

Reliability investigation has always been one of the most important issues in power systems planning. The outages rate in power system reflects the fact that more attentions should be paid on reliability indices to supply consumers with uninterrupted power. Using reliability indices in economic dispatch problem may lead to the system load demand with high reliability and low probability of powe...