نتایج جستجو برای: ie composition and configuration composition indices quantify number

تعداد نتایج: 16917272  

Journal: :تحقیقات مالی 0
حسن قالیباف اصل فاطمه رضائی

the ability of boards to perform their roles depends largely on their composition. board composition refers to the number of directors and type of members as determined by the usual insider or outsider classification. several empirical studies in other country have concluded that board composition determines a board’s power as an instrument of corporate control and contributes to company perfor...

Journal: :Journal of nematology 2001
D A Neher

The composition of nematode communities (plant-parasitic and free-living) may be used as bioindicators of soil health or condition because composition correlates well with nitrogen cycling and decomposition, two critical ecological processes in soil. Maturity and trophic diversity indices withstand statistical rigor better than do abundances, proportions, or ratios of trophic groups. Maturity i...

کلانتر, مهدی,

Engineering ceramics are often difficult to prepare for observation because of their hardness, wear resistance and chemical inertness. Different silicon nitride containing Y2O3 and Al2O3 are prepared and etched using several different techniques and the most efficient methods are identified. The microstructure and grain-boundary composition were examined by electron microscopy (SEM, TEM), ...

Journal: :جنگل و فرآورده های چوب 0
سمیه کرمی راد دانشگاه تهران احسان عبدی دانشکده منابع طبیعی باریس مجنونیان دانشگاه تهران وحید اعتماد دانشگاه تهران هرمز سهرابی دانشگاه تربیت مدرس

road construction is one of the effective factors for ecological changes which affects diversity and species composition in forest roads edges. this research was performed in kheirud forest to evaluate herbaceous diversity and tree regeneration establishment in different distances from road edge. for this purpose, we sampled herbaceous and tree species regeneration in 0,5,10,25, 50 and 100 m di...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1390

abstract previous researches have shown success of growth hormones usage on flower production increase, pod and prevention of abscission of them in some of the pulses. two tests were done, in order to find out the effects of growth hormones to on flower production increase, pod and chick pea yield composites in farmer conditions (2010-11) and green house conditions as factorial on the proje...

2008
M. Ortega R. G. H. Bunce J. M. García R. Elena-Rosselló

The analysis of the dependence of landscape patterns on environment was carried out in order to investigate the landscape structure evolution of Spain. The underlying concept was that the dependence between landscape spatial structure and environmental factors could be gradually decreasing over time. Land cover data were recorded from aerial photo interpretation of 206 4 × 4 km samples from thr...

Journal: :جنگل و فرآورده های چوب 0
بیت الله امان زاده دانشجوی دکتری علوم جنگل، دانشکدﮤ منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران محمد رضا پورمجیدیان دانشیار، دانشکدﮤ منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران خسرو ثاقب طالبی دانشیار پژوهش، مؤسسة تحقیقات جنگل‏ها و مراتع کشور، تهران، ایران سید محمد حجتی دانشیار، دانشکدﮤ منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران

in order to study the effect of canopy gap size on species diversity and composition in mixed stands, a reserved area which located in asalem forests was selected. all of gaps in this area identified and were divided into four categories: small gaps (1000 m2). in each category, 21 of gaps with a relatively homogeneous in terms of an aspect and slope were selected. the major and minor diameter o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1388

this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...

Journal: :IEEE Transactions on Visualization and Computer Graphics 2021

Multiple-view visualization (MV) is a layout design technique often employed to help users see large number of data attributes and values in single cohesive representation. Because its generalizability, the MV has been widely adopted by community examine interact with large, complex, high-dimensional data. However, although ubiquitous, there little work categorize analyze MVs order better under...

ایرانمنش, فرشته , خاتمی, فریبا , رضائیان, محسن , سالم, زینت, شیخ فتح الهی, محمود,

Background and Objective: Many studies shown that students gain weight during their first educational year at college. The aim of this study was to detect the anthropometric indices and body composition changes among medical students entranced at Rafsanjan University of Medical Sciences. Materials and Methods: In this longitudinal study, samples were selected by census method (73 med...

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