نتایج جستجو برای: dynamic magnification factor

تعداد نتایج: 1236960  

2005
JUDITH A. WISNESKI CATHERINE N. PFEIL GEORGE WYSE

The ejection fraction is one of the most widely used measurements of left ventricular systolic function. Angiographic measurement of ejection fraction is based on determination of roentgenographic magnification and calculation of end-diastolic and end-systolic volumes, assuming a prolated ellipse. Because it is simple and radiographic magnification may not have been determined, some laboratorie...

Journal: :Journal of Advanced Clinical & Research Insights 2018

2004
Erzsébet Merényi Abha Jain

The twin of this paper, “Forbidden Magnification? I.” [1], presents systematic SOM simulations with the explicit magnification control scheme of Bauer, Der, and Herrmann [2] on data for which the theory does not guarantee success, namely data that are n-D, n > 2 and/or data whose components in the different dimensions are not statistically independent. For the unsupported n = 2 cases that we in...

2002
Brice Ménard

I present the current status of the cosmic magnification produced by systematic amplification of background sources by large-scale structures. After introducing its principle, I focus on its interests for cosmology and underline its complementary aspect to cosmic shear and galaxy auto-correlations. I finally discuss recent investigations using higher-order statistics.

Journal: :Measurement 2021

• A novel video-based indirect measurement procedure for SHM projects. three-step modification process inappropriate conditions in video records. No need high-speed cameras and expensive record equipment. Experimental modal characteristics time history responses are the main outputs. Effective accurate field-measurement of historical structures. sensing dynamic identification purposes is presen...

Journal: :Vision Research 2007
Achim Langenbucher Berthold Seitz Nóra Szentmáry

BACKGROUND AND PURPOSE Especially after corneal surgery the lateral magnification of the eye providing the retinal image size of an object is a crucial factor influencing visual acuity and binocularity. The purpose of this study is to describe a paraxial computing scheme calculating lateral magnification changes (ratio of the image sizes before and after surgery) due to variation in corneal sha...

ژورنال: :مجله دانشگاه علوم پزشکی شهید صدوقی یزد 0
فاطمه عزالدینی اردکانی f ezoddiniardakani shahid sadoughi university of medical sciencesدانشگاه علوم پزشکی شهید صدوقی یزد صغری یاسایی s yasaei shahid sadoughi university of medical sciencesدانشگاه علوم پزشکی شهید صدوقی یزد سحر قانع s ghanea shahid sadoughi university of medical sciencesدانشگاه علوم پزشکی شهید صدوقی یزد

مقدمه: هدف از این مطالعه ارزیابی موقعیت دندان کانین نهفته ماگزیلاری در رادیوگرافی پانورامیک از طریق دو متغیر angulation و magnification بود. روش بررسی: این مطالعه به روش مقطعی انجام شد. رادیوگرافی های پانورامیک شماره گذاری شد و نام بیمار در هر رادیوگرافی پانورامیک پوشانده شد. دو متغیر angulation (زاویه محوری دندان کانین نهفته به محور اکلوزال) و magnification (عریض ترین بعد مزیودیستال تاج دندان ...

Journal: :Bayesian Analysis 2008

Journal: :Applied optics 2000
J J Esteve-Taboada J García C Ferreira

A previous method of obtaining scale-invariance detection with white-light illumination has been improved on. We were able to detect different scaled versions of the target up to a magnification factor equal to 2. We simultaneously detected several versions in the same scene, because each scale factor is codified in a different wavelength. Experimental results demonstrate the proposed technique...

2004
Adam Amara Thomas J. Cox Jeremiah P. Ostriker

Galactic sized gravitational lenses are simulated by combining a cosmological N-body simulation and models for the baryonic component of the galaxy. The lens caustics, critical curves, image locations and magnification ratios are calculated by ray-shooting on an adaptive grid. It is found that the simulations do not cause the observed number of violations of the cusp caustic magnification relat...

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