نتایج جستجو برای: longitudinal deformation profile

تعداد نتایج: 413911  

2003

Tires are perhaps the most important, but difficult to model, component of an automobile. In addition to supporting the vehicle and damping out road irregularities, the tires provide the longitudinal and lateral forces necessary to change the speed and direction of the vehicle. These forces are produced by the deformation of the tire where it contacts the road during acceleration, braking, and ...

2004
S. A. Merkulov

Using language of dg PROPs we give a new short proof of existence of star products on (formal) germs of Poisson manifolds.

2014
S. O. Adeosun

Mechanical properties response of extruded 6063 aluminum alloy at varied die entry angle has been investigated. Plain carbon and tool steel dies with entry angles of 15, 30, 45, 60, 75 and 90 were simulated. Extrusion on the alloy was done at ambient temperature (37C) and the extruded samples from the various angles were subjected to selected service related mechanical tests and microstructural...

این مطالعه بر اساس مدل‌سازی­های دوبعدی (2D) و سه‌بعدی (3D) مراحل مختلف حفاری تونل زیرگذر ضربعلی­زاده- مداح تحت بار ترافیک ریلی جهت ارزیابی تغییر شکل و نشست سطح زمین به کمک نرم‌افزار المان محدود پلکسیس (PLAXIS) انجام گرفته است. نتایج حاصل از مدل‌سازی عددی دوبعدی معرف شرایط پایدار تونل به‌واسطه ظرفیت قابل قبول سیستم­های نگهداری (اصلی و موقت) طراحی‌شده در بخش‌های مختلف تونل (دیواره­های اصلی، میانی...

Journal: :Circulation. Cardiovascular imaging 2017
David M Harrild Gerald R Marx

Regional Longitudinal Deformation Improves Prediction of Ventricular Tachyarrhythmias in Patients With Heart Failure With Reduced Ejection Fraction: A MADIT-CRT Substudy (Multicenter Automatic Defibrillator Implantation Trial-Cardiac Resynchronization Therapy) Tor Biering-Sørensen, MD, PhD; Dorit Knappe, MD; Anne-Catherine Pouleur, MD; Brian Claggett, PhD; Paul J. Wang, MD; Arthur J. Moss, MD; ...

2014
Ernst Schwartz András Jakab Gregor Kasprian Lilla Zöllei Georg Langs

Deformation fields obtained from image registration are commonly used for deriving measurements of morphological changes between reference and follow-up images. As the underlying image matching problem is ill-posed, the exact shape of these deformation fields is often dependent on the regularization method. In longitudinal and cross-sectional studies this effect is amplified if time between acq...

Journal: :Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society 2009
Gang Li Lei Guo Tianming Liu

This paper presents a novel approach to define deformation invariant attribute vector (DIAV) for each voxel in 3D brain image for the purpose of anatomic correspondence detection. The DIAV method is validated by using synthesized deformation in 3D brain MRI images. Both theoretic analysis and experimental studies demonstrate that the proposed DIAV is invariant to general nonlinear deformation. ...

Journal: :Circulation 2007
Bart Bijnens Piet Claus Frank Weidemann Jörg Strotmann George R Sutherland

IIn the last decade, noninvasive cardiac imaging has played an increasing role in cardiology. As one of the most widespread clinically used techniques, echocardiography has witnessed several technical developments in imaging modalities and image analysis. One of the most recent has been the introduction of velocity-based strain-rate imaging and speckle tracking to quantify regional deformation....

1967
A. S. TAYLOR D. J. ECKFORD

This Report presents a matrix formulation of a method which employs influence coefficients to solve static aeroelastic problems. Linear structural characteristics are assumed and the aerodynamic loading, including that due to elastic deformation, is assumed to be compounded from a linear combination of 'elementary' distributions. Details of the method are here considered only for symmetric flig...

Journal: :Heart 2010
Yiu-fai Cheung Wen-jing Hong Godfrey C F Chan Sophia J Wong Shau-yin Ha

OBJECTIVE The M-mode-derived left ventricular shortening fraction is incorporated into most of the paediatric oncology protocols for monitoring of cardiotoxicity. This study tested the hypothesis that alteration of left ventricular myocardial deformation and mechanical dyssynchrony may occur in asymptomatic children after anthracycline therapy despite having left ventricular shortening fraction...

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