نتایج جستجو برای: energy method

تعداد نتایج: 2204853  

Journal: :Journal of the Engineering Mechanics Division 1968

Journal: :Journal of the Korean society for New and Renewable Energy 2023

Journal: :Mathematics 2021

Accurate prediction methods are generally very computationally intensive, so they take a long time. Quick methods, on the other hand, not accurate. Is it possible to design method that is both accurate and fast? In this paper, new proposed, based so-called random time-delay patterns, named RTDP method. Using these looks for most important parts of time series’ previous evolution, uses them pred...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1388

the purpose of the present study was to investigate the effect of task-based instruction of vocabulary on the receptive and oral productive acquisition of english vocabulary and compare the results with those obtained from the traditional method. the method and procedure applied in this study was as follows: after the implementation of opt, a group of sixty female students were chosen. the stu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده ادبیات و علوم انسانی 1390

abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...

Journal: :energy equipment and systems 0
hamideh mehdizadeh faculty of chemical, petroleum, and gas engineering, semnan university, 35196-45399,semnan, iran abbas alishah faculty of chemical, petroleum, and gas engineering, semnan university, 35196-45399,semnan, iran saeid hojjati astani technical department, mazandaran cement company, neka, iran

cement production is an energy-intensive process, so that the cement industry occupies a top position among other energy-consuming industries. among the equipment used in cement industries, boilers are one of the energy-consuming equipment. boilers are among the common heating equipment in industrial, commercial, and institutional facilities. in this paper, the performance of thermal oil boiler...

Journal: :iranian chemical communication 0
mehdi ghambarian iran polymer and petrochemical institute zahra azizi karaj branch, islamic azad university mohammad ghashghaee iran polymer and petrochemical institute

density-functional-based and ab initio calculations were implemented at different computational levels to estimate the binding energy of zn2+ ion adsorbed on the available sites of a silicate mel-type adsorbent. b3lyp and mp2 were used in combination with the 6-31g*, 6-31+g*, lanl2dz, 6-311+g*, and def2-tzvp basis sets. the zinc cation was found to preferentially occupy the 6mr sites followed b...

Journal: :international journal of nano dimension 0
h. khajeh salehani young researchers club, damavand branch, islamic azad university, damavand, iran. kh. shakouri young researchers club, damavand branch, islamic azad university, damavand, iran. m. esmaeilzadeh department of physics, iran university of science and technology, tehran, iran. m. h. majlesara department of physics, tarbiat moallem university, tehran, iran.

in this paper, the electronic eigenstates and energy spectra of single and two-interacting electrons confined in a concentric double quantum rings with a perpendicular magnetic field in the presence of         on-center donor and acceptor impurities are calculated using the exact diagonalization method. for a single electron case, the binding energy of on-center donor and acceptor impurities ar...

Journal: :Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2015

Journal: :Journal of Computational Physics 2011

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