نتایج جستجو برای: توزیع اندازه بلور csd

تعداد نتایج: 125308  

2011
C. Snodgrass A. Fitzsimmons S. C. Lowry P. Weissman

We present an updated cumulative size distribution (CSD) for Jupiter Family comet (JFC) nuclei, including a rigourous assessment of the uncertainty on the slope of the CSD. The CSD is expressed as a power law, N(> rN) ∝ r −q N , where rN is the radius of the nuclei and q is the slope. We include a large number of optical observations published by ourselves and others since the comprehensive rev...

2018
Jeannette Hofmeijer C. R. van Kaam Babette van de Werff Sarah E. Vermeer Marleen C. Tjepkema-Cloostermans Michel J. A. M. van Putten

Introduction There is strong evidence suggesting detrimental effects of cortical spreading depolarization (CSD) in patients with acute ischemic stroke and severe traumatic brain injury. Previous studies implicated scalp electroencephalography (EEG) features to be correlates of CSD based on retrospective analysis of EEG epochs after having detected "CSD" in time aligned electrocorticography. We ...

2014
Chuan Ma Gaoyi Wu Zhaoling Wang Peihuan Wang Longmei Wu Guoxiong Zhu Huaqiang Zhao Zhuoli Zhang

OBJECTIVES To examine the possible involvement and regulatory mechanisms of extracellular signal-regulated kinase (ERK) pathway in the temporomandibular joint (TMJ) of rats subjected to chronic sleep deprivation (CSD). METHODS Rats were subjected to CSD using the modified multiple platform method (MMPM). The serum levels of corticosterone (CORT) and adrenocorticotropic hormone (ACTH) were tes...

2017
Rikkert Hindriks Joscha Schmiedt Xerxes D Arsiwalla Alina Peter Paul F M J Verschure Pascal Fries Michael C Schmid Gustavo Deco

Planar intra-cortical electrode (Utah) arrays provide a unique window into the spatial organization of cortical activity. Reconstruction of the current source density (CSD) underlying such recordings, however, requires "inverting" Poisson's equation. For inter-laminar recordings, this is commonly done by the CSD method, which consists in taking the second-order spatial derivative of the recorde...

2008
Robert Stevens

The GRASP/Ada project (Graphical Representations of Algorithms, Structures, and Processes for Ada) has successfully created and prototyped an algorithmic level graphical representation for Ada software, the Control Structure Diagram (CSD), and a new visualization for a fine-grained complexity metric called the Complexity Profile Graph (CPG). By synchronizing the CSD and the CPG, the CSD view of...

2017
Louise Mair Philip J. Harrison Mari Jönsson Swantje Löbel Jenni Nordén Juha Siitonen Tomas Lämås Anders Lundström Tord Snäll

The extensive spatial and temporal coverage of many citizen science datasets (CSD) makes them appealing for use in species distribution modeling and forecasting. However, a frequent limitation is the inability to validate results. Here, we aim to assess the reliability of CSD for forecasting species occurrence in response to national forest management projections (representing 160,366 km2) by c...

Journal: :Acta Crystallographica Section A Foundations and Advances 2020

Journal: :مجله علوم اعصاب شفای خاتم 0
ahmad ali lotfinia shefa neuroscience research, khatam alanbia hospital, tehran, iran. milad ahmadi shefa neuroscience research, khatam alanbia hospital, tehran, iran. babak khodaie shefa neuroscience research, khatam alanbia hospital, tehran, iran. mahmoud lotfinia shefa neuroscience research, khatam alanbia hospital, tehran, iran. ali gorji shefa neuroscience research, khatam alanbia hospital, tehran, iran.

cortical spreading depression (csd) has been suggested to underlie some neurological disorders such as migraine. despite the intensity with which many investigators have studied sd in the brain, only a few studies have aimed to identify sd in the spinal cord. here we described the main characteristic features of sd in the spinal cord induced by different methods including various spinal cord in...

ابراهیم صادقی, ابوالقاسم عوض پور سیده محبوبه حکمت زاده شاکر حاجتی

از نگاه میکروسکوپی مهم­ترین ویژگی بلورهای مایع وجود نظم جهتی بلندبرد در غیاب نظم موقعیتی است. در اینجا توابع توزیعی را معرفی می­کنیم که در محاسبة پارامترهای نظم و دیگر میانگین­های مربوطه مؤثر باشند. توزیع­های تک­ذره­ای و دو­ذره­ای مورد بحث قرار می­گیرند. برخی معادلات مشاهده­پذیرهای ترمودینامیکی بر حسب توابع توزیع داده می­شوند. همچنین پارامترهای نظم با بسط تابع توزیع تک­ذره­ای در مجموعه پایه کام...

Journal: :EURASIP J. Adv. Sig. Proc. 2011
Punithavathi Duraiswamy Johan Bauwelinck Jan Vandewege

In this article, we present an efficient way of implementing 90° phase shifter using Hilbert transformer with canonic signed digit (CSD) coefficients in FPGA. It is implemented using 27-tap symmetric finite impulse response (FIR) filter. Representing the filter coefficients by CSD eliminates the need for multipliers and the filter is implemented using shifters and adders/subtractors. The simula...

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