ژن re

Sponge iron (DRI) due to the high surface area, often shows a high tendency to re-oxidation and at some cases spontaneous combustion (autoignition). In this work, re-oxidation behavior and autoignition of sponge iron, produced from different types of iron ore has been investigated. Isothermal and non-isothermal re-oxidation experiments were carried out on each type of DRI and their autoignition...

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بررسی شکل‌گیری رنیوم در مولیبدنیت و تاثیر محلول‌های درون‌‌زاد و برون‌زاد بر توزیع دوباره‌ی آن در سیستم‌های پورفیری

ژورنال: بلورشناسی و کانی شناسی ایران 2015

امین‌زاده, بالنده ,

Molybdenite is the major source of Re in the Earth’s crust. Mineralogical data, chemical analyses and scanning electron microscopy techniques have been used in this study to document Re behavior in molybdenite, affected by hypogene and near-surface processes. XRD study of molybdenite samples indicate that the molybdenites are of the 2H polytype.The patterns of rhenium distribution in molybden...

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a new method to reduce torque ripple in switched reluctance motor using fuzzy sliding mode

Journal: :iranian journal of fuzzy systems 2012

s. r. mousavi-aghdam m. b. b. sharifian m. r. banaei

this paper presents a new control structure to reduce torque ripple in switched reluctance motor. although srm possesses many advantages in motor structure, it suers from large torque ripple that causes some problems such as vibration and acoustic noise. in this paper another control loop is added and torque ripple is de ned as an objective function. by using fuzzy sliding mode strategy, the dc...

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