a brief background to the development of the rock engineering design process is given, showing that since the development of the science of mathematics, deterministic methods have been used to perform various calculations. the variability of rock properties and support characteristics have always been known. however, they were not explicitly used in design but compensated for by the use of a sa...

after the start of the iraqi imposed war against iran, due to the inexperience of the iranian military forces in the field of supporting and engineering, the reconstruction jihad [jihad-e sazandegi]which had been created after the victory of islamic revolution through a decree of imam khomeini to develop the rural areas and eliminate the deprivation therein and also had done some valuable works...

this study intended to carry out a survey of engineering college libraries that have computerized their operations and services. it provides an implicit view of the professional experiences of the engineering college librarians in computerizing their house keeping operations. information was collected using a structured questionnaire mailed to 128 engineering college librarians, of which 102 (7...

The old wishes of people were to regenerate lost tissues of periodontium that this fact is achieved by gen and cell therapy .Periodontal disease is a chronic inflammation around the tooth by microbes that causes destruction of supporting structure of tissue of tooth such as alveolar bone, cementum and periodontal ligament. For treatment of periodontal diseases we can use the biomaterials which ...