نتایج جستجو برای: was investigated eight

تعداد نتایج: 4144297  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1376

saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...

Journal: رستنیها 2014
Farideh Attar, Farrokh Ghahremaninejad Jahanbakhsh Daneshian Maliheh Nejati Edalatiyan Mersedeh Pejhanmehr,

 In this study, the palynology of 33 species of Silene belonging to 15 sections was investigated to examine the correspondence between palynology, morphological sections and phylogenetic trees. The pollen grains were prepared using the acetolysis method. Quantitative and qualitative micromorphological features of pollens were investigated using light microscopy and scanning electron microscopy....

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی 1392

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده زبانهای خارجی 1392

abstract since heubners (1985) pioneering study, there have been many studies on (mis) use/ non-use of articles by l2 learners from article-less and article languages. the present study investigated how persian l2 learners of english produce and interpret english definite descriptions and demonstrative descriptions. it was assumed that definite and demonstrative descriptions share the same cen...

Journal: :Fizika tverdogo tela 2023

Based on the composition of two multiminimum models, a statistical model has been developed basis which formation tetragonal and monoclinic ferroelectric phases in solid solution (1-x)PbFe 0.5 Nb O 3 -xPbTiO investigated described. By selecting parameters model, it was possible to reproduce diagram T(x) this solution. The peculiarity is that when approaching concentration x~0.1, temperature pha...

2008
Klaus Fabricius Barry M. McCoy

Whereas the tools to determine the eigenvalues of the eight-vertex transfer matrix T are well known there has been until recently incomplete knowledge about the eigenvectors of T . We describe the construction of eigenvectors of T corresponding to degenerate eigenvalues and discuss the related hidden elliptic symmetry.

1995
Elizabeth Martin Yukiko Ellis

Attached is the first of two reports on results of the study whose objective is to assess the relative values of explanatory variables on the prediction of census omission and erroneous enumeration based on the data collected for the Ethnographic Evaluation of the Behavioral Causes of Census Undercount for the 1990 Decennial Census. This report focuses on the result of an explanatory data analy...

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