نتایج جستجو برای: image analysis of thin sections

تعداد نتایج: 21377580  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت معلم تهران 1381

‏‎the purpose of the present study was to investigate the latent pattern underlying reading ability . some 272 male and female participants. english majors at the ba level , participated in the study. two valid tests were used in this study, the reading test developed exclusively for the purpose of this project and academic reading section of ielts. to investigate the possible latent underlying...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1388

based on the latest records of typhlops vermicularis merrem, 1820 from iran, this species is distributed in the northern and southern regions of the country. in this study, new records of typhlops vermicularis are presented and it is shown that distribution range of this species is extended towards the eastern and western iran, and according to the new distribution map, it can be assumed that t...

J. Emadi,

Being economical and performing well under cyclic loads, steel sections filled with concrete have been widely used in structural buildings. Extensive studies and experiments have been conducted to investigate the influence of different parameters and loadings on the behavior of these structural components. Based on the data available from previous experiments and studies, this paper discusses t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده ادبیات و زبانهای خارجی 1391

esl/efl books play a crucial role in shaping language learners worldview of gender roles in society. the present study investigated the status of sexism in two sets of efl textbooks, one developed by non-native iranian authors (ili series) and the other by native authors (top notch series). first, two books from each series was selected randomly. then, a quantitative analysis was carried out wi...

2006
D. N. BRYON M. P. ATHERTON R. H. HUNTER

Textural development of the felsic phases in two granodioritic rocks from the zoned Linga superunit of the Peruvian Coastal Batholith has been characterized using serial thin sectioning, image analysis and threedimensional reconstruction. The study has shown how each mineral phase contributed to the texture during the formation and development of a contiguous crystal framework and during subseq...

Journal: :زمین شناسی اقتصادی 0
بهرام بهرام بیگی حجت اله رنجبر جمشید شهاب پور

hyperion hyperspectral data contains a very rich source of information from the earth surface that collects 242 narrow contiguous spectral bands. achieving this source of rich information is subject to the performance of suitable image processing methods on raw satellite data. satellite image processing methods can be classified into two categories of statistical-based and spectral-based. in th...

Journal: :تحقیقات مهندسی کشاورزی 0
جعفر امیری پریان دانشجوی سابق دکتری دانشگاه تربیت مدرس محمدهادی خوش تقاضا دانشیار دانشگاه تربیت مدرس احسان الله کبیر استاد دانشگاه تربیت مدرس سعید مینایی دانشیار دانشگاه تربیت مدرس

volume estimation of most agricultural products using mathematical methods is not accurate because of their irregular shape. an alternative method is image processing, which can be used in continuous sorting machines. the objective of this study is to find a practical method for volume estimation of potatoes using image processing. fifty potatoes (marfona variety) were selected as experimental ...

حسن‌پور, احمد , غریب شاهی, محمد , نیایی فر, محمد ,

In this study, cerium substituted yttrium iron garnet thin films with nominal formulaY3-xCexFe5O12 and different x value  (x = 0,0.1,0.3,0.5,0.7) were fabricated on quartz substrates viasol-gel method and spin coating technique. Samples taken to check physical characteristics. The effect of Ce doping on the structural properties , surface morphology and magnetization of the films were studied r...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی 1392

this study investigated the impact of explicit instruction of morphemic analysis and synthesis on the vocabulary development of the students. the participants were 90 junior high school students divided into two experimental groups and one control group. morphological awareness techniques (analysis/synthesis) and conventional techniques were used to teach vocabulary in the experimental groups a...

Journal: :Computers & Geosciences 2005
Roberto Marmo Sabrina Amodio Roberto Tagliaferri Vittoria Ferreri Giuseppe Longo

Using more than 1000 thin section photos of ancient (Phanerozoic) carbonates from different marine environments (pelagic to shallow-water) a new numerical methodology, based on digitized images of thin sections, is proposed here. In accordance with the Dunham classification, it allows the user to automatically identify carbonate textures unaffected by post-depositional modifications (recrystall...

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