In this paper the Kamat-Riley (K-R) event-based Monte Carlo simulation method was used for reliability analysis of longwall shearer machine. Shearer machine consists of six subsystems; water, haulage, electrical, hydraulic, cutting arms and cable systems in a series network configuration. A shearer in the Tabas coal mine was selected as case study and its all failure data were collected and use...

based on description and nature of geomorphology, the geomorphologists must be have specific tendency to form of earth crust's landforms and their transformation. but some of related specialists in iran, believe that questa have relationship to old (paleo) geology formations, and by this reason say that questa there is not in iran. whereas anothers such as the writer (author) of this articl, wi...

in this study, the isothermal reduction of iron oxide pellets, made of iranian chadormalo, gole-gohar, and sangan iron ores, was investigated in the temperature range of 900-1100°c. tabas, pabdana, babnizoo, karmozd, and shahrood domestic coals were used as reductants. parametric studies were performed and the effects of such factors as temperature, average particle size of iron ore and coal fi...

Shaft sinking is one of the main parts in underground mine planning. Shaft has various applications in underground mines e.g. minerals exiting flow, gases entrance or exit way, stope developments for exploitation etc. Considering that this section requires an abundance of expenses, management always following the election is the way that both terms have the technical considerations, economic co...

We recently reported that the high mannose-type oligosaccharides of the biosynthetic intermediates of &glucuronidase contain phosphate groups in diester linkage between mannose residues and outer a-linked N-acetylglucosamine residues (Tabas, I., and Kornfeld, S. (1980) J. Bwl. C h m . 255, 6633-6639). We now describe an a-N-acetylglucosaminyl phosphodiesterase from rat liver that is capable of ...

In this study, the isothermal reduction of iron oxide pellets, made of Iranian Chadormalo, Gole-gohar, and Sangan iron ores, was investigated in the temperature range of 900-1100°C. Tabas, Pabdana, Babnizoo, Karmozd, and Shahrood domestic coals were used as reductants. Parametric studies were performed and the effects of such factors as temperature, average particle size of iron ore and coal fi...

Correspondence to Ira Tabas: [email protected] Abbreviations used in this paper: apoB, apolipoprotein B; CHOP, C/EB-homologous protein; DAMP, damage-associated molecular pattern; LP, lipoprotein; SMC, smooth muscle cell. Atherosclerotic vascular disease is the underlying cause of myocardial infarction (heart attack), stroke, unstable angina (ischemic heart pain), and sudden cardiac death (Lusis...