نتایج جستجو برای: شاخص dsi

تعداد نتایج: 75451  

ژورنال: :پژوهش نفت 2015
محمد صفرخان موذنی بهمن سلیمانی فرهاد خوشبخت محسن عزتی

ناهمسان گردی نشان دهنده تغییر یک یا چند خاصیت از ماده بر حسب جهت است. تعیین دقیق ناهمسان گردی در مطالعات ژئوفیزیک اکتشافی، ژئوفیزیک مخزن، شناسایی مسیر مناسب برای حفاری چاه و جلوگیری از بروز مشکلاتی نظیر مشکل تولید ماسه بسیار مهم است. ابزار dsi کندی امواج برشی را در دو جهت عمود بر هم، به موازات محور چاه اندازه گیری می کند. با استفاده از نگار dsi و تکنیک ریاضی چرخش آلفورد، می توان زون های ناهمسان...

Journal: :Journal of Advanced Mechanical Design, Systems, and Manufacturing 2012

Journal: :The Laryngoscope 2013
Evelien D'haeseleer Sofie Claeys Kristiane Van Lierde

OBJECTIVES/HYPOTHESIS The purpose of this study was to investigate the impact of a single session of manual circumlaryngeal therapy on the vocal characteristics of future elite vocal performers (music students). STUDY DESIGN A pretest/post-test control group design was used. METHODS Sixteen music students were randomly divided in an experimental and control group. The experimental group rec...

Journal: :The Gerontologist 2016
Brittney Dullard Gabrielle H Saunders

PURPOSE OF THE STUDY To examine the documentation of sensory impairment in the electronic medical records (EMRs) of Veterans with both hearing and vision losses (dual sensory impairment [DSI]). DESIGN AND METHODS A retrospective chart review of the EMRs of 20 patients with DSI was conducted. Providers' documentation of the presence of sensory impairment, the use of assistive technology during...

Journal: :The Journal of head trauma rehabilitation 2011
Henry L Lew Terri K Pogoda Errol Baker Kelly L Stolzmann Mark Meterko David X Cifu Jomana Amara Ann M Hendricks

OBJECTIVE To describe the prevalence of self-reported rates of auditory, visual, and dual sensory impairment (DSI) in Afghanistan and Iraq war Veterans receiving traumatic brain injury (TBI) evaluations. DESIGN Retrospective medical chart review. PARTICIPANTS Thirty-six thousand nine hundred nineteen Veterans who received a TBI evaluation between October 2007 and June 2009. Final sample inc...

Journal: :Journal of magnetic resonance imaging : JMRI 2014
Stefan J Teipel Maximilian Lerche Ingo Kilimann Kieran O'Brien Michel Grothe Peter Meyer Xingfeng Li Peter Sänger Karlheinz Hauenstein

PURPOSE We applied a novel diffusion spectrum imaging (DSI) acquisition to determine associations between aging and subcortical fiber tract integrity. MATERIALS AND METHODS We studied 35 cognitively healthy subjects (17 women), spanning the adult age range between 23 and 77 years, using anatomical MRI and a novel DSI acquisition scheme at 3 Tesla. The study was approved by the local instituti...

Journal: :Journal of Pure and Applied Algebra 2024

For a given family (Gi)i∈N of finitely generated abelian groups, we construct Dedekind domain D having the following properties. Pic(D)≅⨁i∈NGi. each i∈N, there exists submonoid Si⊆D• with Pic(DSi)≅Gi. Each class Pic(D) and all Pic(DSi) contains infinitely many prime ideals.

2015
Joshua L. Lillvis JOSHUA L. LILLVIS Paul S. Katz

Despite having similar brains, related species can display divergent behaviors. Investigating the neural basis of such behavioral divergence can elucidate the neural mechanisms that allow behavioral change and identify neural mechanisms that influence the evolution of behavior. Fewer than three percent of Nudipleura (Mollusca, Opisthobranchia, Gastropoda) species have been documented to swim. H...

2009
L-W. Kuo J. P. Haldar I. Tseng

Introduction The diffusion spectrum imaging (DSI) technique can map intravoxel heterogeneity of molecular water diffusion and depict complex fiber architecture within tissue structures [1]. Theoretically, an extremely high maximum b-value (i.e., > 10000 s/mm) is necessary for good DSI reconstruction, though this is difficult to achieve due to limited signal-to-noise ratio (SNR). Previously, an ...

Journal: :Theoretical and Mathematical Physics 1994

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