نتایج جستجو برای: photomagnetic effect
تعداد نتایج: 1641675 فیلتر نتایج به سال:
I elaborate on the earlier suggestion that the model describing the plateaux transition in Integer Quantum Hall effect scales to a particular point on the line of critical points of a theory with a higher symmetry.
We show how to calculate the encountered wave period distribution for a ship traveling with constant speed on a Gaussian random sea with a directionally distributed frequency spectrum. 1998 Elsevier Science Ltd. All rights reserved.
The Hall conductivity in the magnetic-field-induced spin-density-wave (FISDW) state of the quasi-onedimensional organic conductors (TMTSF)2X at a finite temperature is calculated. The temperature dependence of the Hall conductivity is found to be the same as the temperature dependence of the Fröhlich current of a regular charge/spin-density wave. Predicted dependence σxy(T ) can be verified exp...
during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...
چکیده : پژوهش حاضر به بررسی تاثیر بدهی قراردادی و برآوردی بر بازده آتی سهام در شرکتهای پذیرفته شده دربورس اوراق بهادار تهران می باشد.برای آزمون فرضیات ابتدا مدل تجربی ارائه گردیده است که در آن متغیرهایی چون بازده حقوق صاحبان سهام،جمع بدهی های اهرمی،بدهی عملیاتی،بدهی قراردادی،بدهی برآوردی،تغییرات بدهی های عملیاتی برآوردی و قراردادی شرکت نسبت به سال قبل و همچنین رشد شرکت وجود دارند. براساس آزمون...
in this thesis, phosphorus ylides [phbppy], [no2bppy] and [brbppy] have been synthesized through the formation of phosphonium salt and dihydrogenation, followed by the reaction of pd(oac)2 and the orthopalladated dinuclear complexes [pd(?-cl)(phbppy)]2, [pd(?-cl)(no2bppy)]2 and [pd(?-cl)(brbppy)]2 have been produced. the reaction of dinuclear complexes and bidentate ligands [l = bipy (2,2-bipyr...
although there are studies on pragmatic assessment, to date, literature has been almost silent about native and non-native english raters’ criteria for the assessment of efl learners’ pragmatic performance. focusing on this topic, this study pursued four purposes. the first one was to find criteria for rating the speech acts of apology and refusal in l2 by native and non-native english teachers...
infection by m. tuberculosis can be demonstrated by tuberculin testing. on sequential ppd some person show a marked increase in the size of their skin reactions which may not be due to recent or past tuberculous infection. this phenomenon (booster effect) can occur as soon as a week after the initial test and persist for as long as a year. methods and materials: the purpose of this research is ...
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