In this experiment, the chemical composition of the essential oils obtained from Ferula assa-foetida oleo-gum resin collected from two different sites of Yazd province (Tabas and Yazd) in the center of Iran, were identified. The gas chromatography mass-spectroscopy (GC/MS) data showed that the qualitative composition of the components appeare...

Rhaetian strata from the Nayband Formation of the Tabas block, East- Central Iran, were studied palynologically. The materialexamined contained moderately diverse and well-preserved dinoflagellate cyst assemblages which lead to the identification ofRhaetogonyaulax rhaetica Zone. The assigned age of this dinozone (Rhaetian) is justified by plant fossils such as Equisetitesarenaceus, Scytophyllum...

Se revisan los enterramientos femeninos con análisis antropológico de las necrópolis iberas Alicante, Murcia y Albacete. El objetivo es identificar patrones comportamiento en la composición ajuares a través individualización objetos, para lo que se ha recurrido aplicación procedimientos cuantitativos sobre datos extraídos. La reducida muestra antropológicos dificultado gran medida tarea. No obs...

background& aim: substance abuse is associated with high prevalence of psychiatric disorders including mood disorders (especially depression), personality disorders and psychosis. the purpose of this study was to investigate the effect of methadone and its result on substance induced depression-symptoms among iv drug abusers of kashan prison in 1384. method & materials: this is a semi-experimen...

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...

The Kamar-e-Mehdi Formation (Callovian – Oxfordian) is the fill of a shelf lagoon situated in the western and central parts of the so-called Tabas Block for a N-S distance of 200-300 km. From the predominantly fine-grained carbonates, which in the depocenter reach more than 1000 m in thickness, 69 taxa of bivalves are described, which differ greatly in their preservation depending on their orig...

Abstract A transgression of the Tethys Ocean occurred in east central Iran, like other areas Ocean, around Yakhtashian/Bolorian (regional chronostratigraphical units corresponding with Artinskian/Kungurian Early Permian) transition. This led to development a carbonate platform that is represented Shirgesht area on northern part Tabas Block by Bagh-e-Vang Formation, which constitutes only known ...

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...