The spin relaxation of nitrogen donors in 6H SiC crystals as studied by the electron spin echo method

study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour

this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

Molecular Motions in Thermotropic Liquid Crystals Studied by NMR Spin-Lattice Relaxation

Assessment of the Characteristics of MRI Coils in Terms of RF Non-Homogeneity Using Routine Spin Echo Sequences

Introduction: One of the major causes of image non-uniformity in MRI is due to the existence of  non-homogeneity in RF receive and transmit. This can be the most effective source of error in  quantitative  studies  in  MRI  imaging.  Part  of  this  non-homogeneity  demonstrates  the  characteristics of RF coil and part of it is due to the interaction of RF field with the material being  imaged...

Electron Spin Relaxation of (Diphenyl) in Dimethoxyethane *

The electron relaxation times Tt and T2 have been measured by ESR pulse techniques in solutions of normal and perdeuterated (diphenyl)" in dimethoxyethane at various radical concentrations and temperatures. The results are discussed in terms of different relaxation mechanisms. The most important contribution to spin-lattice relaxation at high concentration is dipolar interaction with other radi...

a study of the fifth child and ben in the world by doris lessing in the light of julia kristevas psychoanalytic concepts

این مطالعه به بررسی عوامل روانشناختی کریستوادردو رمان دوربس لسینگ،فرزندبنجم و بن دردنیای واقعی می بردازد.موفقیت یا شکست کاراکترهادر تکمیل شکست تتیزی یه کمک بدر وهم از مهم ترین دغدغه محقق می باشد.به بررسی تحلیل روانشناختی تمامی کاراکترها خصوصا بن برداخته و به دنبال نشانه هایی از جامعه شیشه ای کریستوا می باشد.