نتایج جستجو برای: gohar

تعداد نتایج: 104  

2017
Reham Mohamed Ahmed

Learning characteristics vary for each individual learner. Research suggests that knowledge is processed and represented in different ways and that students prefer to use different types of resources in distinct ways. Adapting learning to meet the various individual differences of the students is a real challenge. Thus, the present study aimed at investigating the effect of designing an adaptiv...

ژورنال: علوم آب و خاک 2006
امیر قلاوند, , افراسیاب علا, , مجید آقا علیخانی, ,

In order to evaluate the effects of plant densities (10, 13, 20 and 40 plant/m2 ) on the yield and yield components of two cultivars (Partow, Gohar) and a line (VC-1973A) of mungbean [Vigna radiata (L.) Wilczek] a field experiment was conducted at the Seed and Plant Improvement Institute (SPII) of Karaj in Summer 1998. This research carried out in a factorial experiment based on Randomized Comp...

فاتحی, حسین, احمدی پور, حمید ,

Gol-e-Gohar and Rutchun metamorphic complexes in south-east of Sanandaj-Sirjan metamorphic zone contain alternation of meta-sedimentary, meta-basites and impure meta-limestone that have been affected by different metamorphic events and deformational phases. In the first metamorphic event that was associated with the first deformational phase, muscuvite, biotite and garnet minerals were formed a...

The effect of pellet chemical composition and burning temperature on pellets’ properties of the Gol-e-Gohar hematite recovery plant was investigated in this study. Green pellets of different sodium hydroxide ratio and hydrated lime were prepared as well. Then the pellets were burnt in a muffle kiln under different temperature conditions. The Design Expert software was employed to explore ...

One of the most important steps involved in mining operations is to select an appropriate extraction method for mine resources. After choosing the extraction method, it is usually impossible to replace it with another one because it may be so expensive that implementation of the entire project could be economically impossible. Choosing a mining method depends on the geological and geometrical c...

ژورنال: مرتع 2022
, ,

Background and objectives: Iron and related mineral industries are one of the important pillars in industrial development. Extraction of iron ore and steel production is not possible without land degradation, and in this processing, in addition to steel, is a large volume of mineral tailings will be produced that, if not properly managed, will be able to pollute soil, air, and water, that can p...

A. Rastgoo H. Amini Mashhadi, J. Vahdati Khaki

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...

Dilution can best be defined as the proportion of waste tonnage to the total weight of ore and waste in each block. Predicting the internal dilution based on geological boundaries of waste and ore in each block can help engineers to develop more reliable long-term planning designs in mining activities. This paper presents a method to calculate the geological internal dilution in each block and ...

ژورنال: علوم آب و خاک 2017

The aim of this work was to study distribution of some heavy metals in different soil particle-size fractions and to assess their spatial distribution. The study was carried out in Kafe Moor (Kerman, Iran) where the Gol-Gohar Iron Mine is located. One hundred twenty composite soil samples were randomly collected and transferred to the laboratory in bags. After air-drying, the samples were f...

H* Khoshdast, M.N Zeidabadi Nejhad,

Background & objectives: One of the biggest concerns about the increasing development of the mining industries, especially in the dry and tropical regions, is their high water consumption and, consequently, the serious threat to the local water resources as well as the impacts of these industrieschr('39') pollution on the environment and other downstream water resources. Therefore, it is necess...

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