نتایج جستجو برای: gsas

تعداد نتایج: 89  

ژورنال: :پژوهش فیزیک ایران 0
بهرام خوشنویسان b khoshnevisan university of kashan, kashan, iranدانشگاه کاشان م فربد m farbod university of shahid chamran, ahvaz, iranدانشگاه شهید چمران اهواز

نما یه های پراش xrd از نمونه پودری ابررسانای yba2-xkxcu3o7-y و (0 با استفاده از نرم افزار gsas به روش ریتولد پالایش و برازش شده است. افزایش مقدار پتاسیم، x ، در فرآیند جانشینی آن به جای باریم از طرفی باعث رشد قله های جدید (به خاطر افزایش ناخالصیها) در الگوی پراش شده و ار طرف دیگر باعث تغییر محتوای اکسیژن در نمونه می شود و همچنین مکان نسبی صفحات ba(k)  در راستای عمود بر صفحات پایه ایی (راستای c ...

2007
Arvind Parkhe

Organizational theorists have correctly argued that the emergence and maintenance of robust cooperation between global strategic alliance partners is related to the diversity in the partners' characteristics. Yet previous research has failed to systematically delineate the important dimensions of interfirm diversity and integrate the dimensions into a unified framework of analysis. This paper d...

Journal: :Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine 2007
Ram Dickman Colleen Green Shira S Fass Stuart F Quan Roy Dekel Sara Risner-Adler Ronnie Fass

BACKGROUND Nighttime reflux has been shown to be associated with esophageal mucosal injury, complications, and extra-esophageal manifestations. However, few studies have assessed the impact of gastroesophageal reflux on reported quality of sleep and quality of sleep on gastroesophageal reflux. AIMS The aims of this study were (1) to determine the correlation between the severity of gastroesop...

2006
H. M. Volz A. Roberts C. Lawson J. Williams

We discuss the impact of strong absorption for thermal neutrons on data analysis and compare absorption corrections in the GSAS and MAUD Rietveld codes for texture and structural parameter refinement. Diffraction data were collected on the neutron powder diffractometer HIPPO at LANSCE from dysprosium and erbium, which are moderate to strong absorbers for thermal neutrons with absorption cross-s...

2015
Albert Rosenberger Stefanie Friedrichs Christopher I. Amos Paul Brennan Gordon Fehringer Joachim Heinrich Rayjean J. Hung Thomas Muley Martina Müller-Nurasyid Angela Risch Heike Bickeböller Manu Sharma

INTRODUCTION Gene-set analysis (GSA) methods are used as complementary approaches to genome-wide association studies (GWASs). The single marker association estimates of a predefined set of genes are either contrasted with those of all remaining genes or with a null non-associated background. To pool the p-values from several GSAs, it is important to take into account the concordance of the obse...

2013
Robert von Dreele James P. Cline David Black Donald Windover Marcus H. Mendenhall Albert Henins Soorya N. Kabekkodu Timothy Fawcett A. Fitch Dimitri N. Argyriou Paul F. Henry Pamela Whitfield Yasukazu Nakaye

In the 12 years since the last Accuracy in Powder Diffraction meeting, there have been significant advances. Just an example: a search of the Protein Data Bank for “powder” shows just 2 hits for before 2000, 19 for 2000‐2005, 27 for 2005‐2010 and 31 for 2010‐present. The current Cambridge Crystallographic Data Base (CCDC) shows 2354 molecular crystal structures determined via powder diffraction...

2004
Luís Fabrício Wanderley Góes Carlos Augusto Paiva da Silva Martins

 Using a single traditional gang scheduling algorithm cannot provide the best performance for all workloads and parallel architectures. A solution for this problem is the use of an algorithm that is capable of dynamically changing its form (configuration) into a more appropriate one, according to environment variations and user requirements. In this paper, we propose, implement and analyze the...

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