نتایج جستجو برای: 196 ngg dw and 132

تعداد نتایج: 16831317  

Journal: :Physical review letters 2010
Z Z Sun J Schliemann

We investigate field-driven domain wall (DW) propagation in magnetic nanowires in the framework of the Landau-Lifshitz-Gilbert equation. We propose a new strategy to speed up the DW motion in a uniaxial magnetic nanowire by using an optimal space-dependent field pulse synchronized with the DW propagation. Depending on the damping parameter, the DW velocity can be increased by about 2 orders of ...

Journal: :Genetics 2011
Qing Fang Chantal Longo-Guess Leona H Gagnon Amanda H Mortensen David F Dolan Sally A Camper Kenneth R Johnson

Thyroid hormone has pleiotropic effects on cochlear development, and genomic variation influences the severity of associated hearing deficits. DW/J-Pou1f1dw/dw mutant mice lack pituitary thyrotropin, which causes severe thyroid hormone deficiency and profound hearing impairment. To assess the genetic complexity of protective effects on hypothyroidism-induced hearing impairment, an F1 intercross...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده علوم پایه 1390

سرده بومادران (achillea) متعلق به تیره کاسنی می باشد. بیش از 100گونه شناسایی شده این سرده به طور گسترده ای در نیمکره شمالی انتشار دارند. در ایران 19گونه از این سرده گزارش شده که 7 گونه ی آن بومی می باشند و به طورخودرو در اغلب نقاط ایران رویش دارند. این گیاهان از سالیان قبل در طب سنتی به عنوان عامل ضد التهابی در درمان درد های روماتیسمی مورد استفاده قرار می گرفته اند. مطالعات صورت گرفته بر روی...

2015
Ludmila Malakhova Vitaly Giragosov Antonina Khanaychenko Tetiana Malakhova Viktor Egorov Dmitry Smirnov

The organochlorine compounds (OCs) contamination was studied in different tissues of the adult Black Sea turbot (BST) from natural spawning populations of 2008, 2009 and 2013 in the South-Western shelf off Crimea, the Black Sea. Total lipids, six congeners of polychlorinated biphenyl (CB 28, 52, 101, 138, 153, 180) and organochlorine pesticide p,p’DDT including its metabolites p,p’DDE and p,p’D...

2009
Dimitri Theodoratos Wugang Xu Alkis Simitsis

A Data Warehouse (DW) is a repository of information retrieved from multiple, possibly heterogeneous, autonomous, distributed databases and other information sources for the purpose of complex querying, analysis and decision support. Data in the DW are selectively collected from the sources, processed in order to resolve inconsistencies, and integrated in advance (at design time) before data lo...

Ali Reza Rastgoo, M.S Mortazavi S.M.R Fatemi T Valinassab

The feeding habits and trophic level of Himantura gerrardi were studied according to sex and size classes utilizing 80 individuals obtained using bottom trawl between May and December 2014 from Oman Sea. Collected specimens were divided in three size classes (small 58 cm) based on disk width (DW). Preys were identified in seven main zoological categories, where crustacean and polychaetes were t...

2014
Ali Ghasemzadeh Hawa Z. E. Jaafar Asmah Rahmat Thiyagu Devarajan

In this study, we investigated some bioactive compounds and pharmaceutical qualities of curry leaf (Murraya koenigii L.) extracts from three different locations in Malaysia. The highest TF and total phenolic (TP) contents were observed in the extracts from Kelantan (3.771 and 14.371 mg/g DW), followed by Selangor (3.146 and 12.272 mg/g DW) and Johor (2.801 and 12.02 mg/g DW), respectively. High...

2011
João Pedro Costa José Cecílio Pedro Martins Pedro Furtado

The star schema model has been widely used as the facto DW storage organization on relational database management systems (RDBMS). The physical division in normalized fact tables (with metrics) and denormalized dimension tables allows a trade-off between performance and storage space while, at the same time offering a simple business understanding of the overall model as a set of metrics (facts...

2010
Arzhang Angoshtari Arash Yavari

Using the method of anharmonic lattice statics, we calculate the equilibrium structure of steps on 180° ferroelectric domain walls DWs in PbTiO3. We consider three different types of steps: i Ti–Ti step that joins a Ti-centered DW to a Ti-centered DW, ii Pb–Pb step that joins a Pb-centered DW to a Pb-centered DW, and iii Pb–Ti step that joins a Pb-centered DW to a Ti-centered DW. We show that a...

Journal: :AJNR. American journal of neuroradiology 2004
Jessica E Simon Diana K Czechowsky Michael D Hill Ashley D Harris Alastair M Buchan Richard Frayne

BACKGROUND AND PURPOSE Change in signal intensity due to acute ischemic stroke can be detected on diffusion-weighted (DW) images soon after symptom onset. Fluid-attenuated inversion recovery (FLAIR) DW imaging suppresses signal intensity from water and has been suggested to be better than conventional DW imaging as a diagnostic imaging technique in acute stroke. We compared the signal intensity...

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