نتایج جستجو برای: شاخص mbe

تعداد نتایج: 76393  

2009
John P. Leonard James W. McCamy Byungha Shin Michael J. Aziz

Using a dual Molecular Beam Epitaxy (MBE)-Pulsed Laser Deposition (PLD) Ultra-High Vacuum chamber, we have conducted the first experiments under identical thermal, background, and surface preparation conditions to compare Ge(001) homoepitaxial growth morphology in PLD and MBE. We find that in PLD with low kinetic energy and in MBE the film morphology evolves in a similar fashion: initially irre...

Journal: :The EMBO journal 2010
Karthik Arumugam Yiying Wang Linda L Hardy Melanie C MacNicol Angus M MacNicol

Meiotic cell-cycle progression in progesterone-stimulated Xenopus oocytes requires that the translation of pre-existing maternal mRNAs occur in a strict temporal order. Timing of translation is regulated through elements within the mRNA 3' untranslated region (3' UTR), which respond to cell cycle-dependant signalling. One element that has been previously implicated in the temporal control of mR...

Journal: :Reproduction, nutrition, development 2000
P Rekwot D Ogwu E Oyedipe V Sekoni

A total of ninety seven pre-pubertal Bunaji (BJ) and Friesian-Bunaji (FR x BJ) heifers were allotted randomly to two treatments groups for a period of 15 months. The treatment groups consisted of the followings: Mature Bull Exposure (MBE) and No Bull Exposure (NBE). Heifers were body condition scored and their live weights recorded on 28 days consecutive intervals. A heifer tactile stimulation ...

بهروز ارسطو, علی اکبر نوروزی, علیجان آبکار محمود دمی زاده

این پژوهش به‌منظور ارائه مدلی برای تهیه نقشه شوری با استفاده از چند شاخص طیفی و داده‌های ماهواره‌ای لندست پنج در مناطق خشک بوشهر، سمنان، فارس، کرمان و هرمزگان انجام شد. ابتدا نمونه‌برداری از افق شناسایی سطحی (0-30 سانتی‌متری) خاک به تفکیک هر منطقه در استان به تعداد 50 تا 100 نمونه برداشت و به آزمایشگاه ارسال شد. سپس به‌منظور شناسایی و ارزیابی شوری خاک، از تلفیق تصاویر ماهواره‌ای لندست پنج و پار...

Journal: :Psychiatric Bulletin 1996

Journal: :British Dental Journal 2005

Journal: :Post-Medieval Archaeology 2010

Journal: :III-Vs Review 2004

2006
Michael Grundmann

A fast Monte Carlo simulator with a graphical user interface is an ideal education tool for students learning about molecular beam epitaxy (MBE). This paper discusses the implementation of such a simulator, as well as simulation techniques that may be used to tailor surfaces. Simulations carried out on the learning tool show how MBE can recover step-flow growth, in addition to the temperature d...

Journal: :Matrix Biology 2014

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