It is of great importance to consider long-term stability of rock mass around the openings of underground structure, during design, construction and operation of the said structures in rock. In this context, three methods namely, empirical, analytical and numerical have been applied to design and analyze the stability of underground infrastructure at the Siah Bisheh Pumping Storage Hydro-Electr...

Our purpose in this article is to combine three previously published papers in order to apply a general Methodological frame to a specific problem. Because system design is a special case of problem solving, we will try to apply A Generalized Group Decision Support System (GDSS) for Group Problem Solving: (Callaos, et.al. 1999; Callaos and Lesso, 1999) to the specific area of System Design. Thi...

intelligent use of data and information in a large company for management decisions are the essential requirements of all managers. in addition, the necessity of paying attention to the environmental competitiveness increases the importance of responding to these needs. information systems and tools of it in recent decades have played a special role in increasing the respond to these demands. o...