نتایج جستجو برای: direct reduction process

تعداد نتایج: 2083931  

Journal: :Management Science and Financial Engineering 2015

Ghobeiti-Hasab, Mehdi, Heidary Moghadam, Ali, Khalasi-Dezfuli, Mahdi,

In this research, Gas tungsten arc welding (GTAW) on Hastelloy B-2 Superalloy was used to investigate the effect of current type on microstructure and mechanical properties of welded zone. The welding process was performed using two direct and pulsed current and with Hastelloy X filler metal. Optical Microscope (OM) and Scanning Electron Microscope (SEM) were used to investigate the microstruct...

Journal: :Journal of Japan Institute of Light Metals 1971

Journal: :international journal of smart electrical engineering 2014
ebrahim kazemzadeh mojtaba zare banadkooki

single-phase squirrel cage and three-phase induction electromotors are the most popular electromotors used in industry from long ago. when an induction motor starts with direct connection method, it takes a lot of current from the power supply (several times the nominal current); so, several methods have been devised to start such electromotors. these methods either reduce the voltage of the st...

Hydrogen is considered as a unique choice for future world’s resources. The important parameter in the process of hydrogen production is the value of reduction potential for the used catalyst, in direct contact with consumed energy in process. The application of computational methods to design and modify molecular catalysts is highly regarded. This study sought to explore Density Functional...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده ادبیات و علوم انسانی 1391

the purpose of this two-phase, sequential mixed methods study was to find out whether there were any decencies between male and female ma students’ theses regarding the common features of academic writing such as syntactic complexity, means of integrating cited information, and organizing arguments. i chose 10 male written theses and 15 female written theses in tefl and linguistics. in the firs...

1995
Simon Brock Gerald Ostheimer

This paper introduces an operational semantics for call-by-need reduction in terms of Milner's-calculus. The functional programming interest lies in the use of-calculus as an abstract yet realistic target language. The practical value of the encoding is demonstrated with an outline for a parallel code generator. From a theoretical perspective, the-calculus representation of computational strate...

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