Results 111 to 120 of about 9,914,485 (355)

Simple and Robust Boolean Operations for Triangulated Surfaces

open access: yes, 2013
Boolean operations of geometric models is an essential issue in computational geometry. In this paper, we develop a simple and robust approach to perform Boolean operations on closed and open triangulated surfaces.
Mei, Gang, Tipper, John C.
core  

Ultrasonography Compared With Computed Tomography in Identifying Thoracic Aortic Aneurysms in Patients With Giant Cell Arteritis

open access: yesArthritis Care &Research, EarlyView.
Objective The objectives of this study were to evaluate the correlation and agreement between ultrasonography and computed tomography (CT) in measuring ascending aorta diameter in patients with giant cell arteritis (GCA) and to investigate the development of new ascending aortic aneurysms in patients with newly diagnosed GCA.
Anne C. Bull Haaversen   +4 more
wiley   +1 more source

Comparative Analysis of Data Efficiency Between Conventional Periapical Radiography and Digital Subtraction Radiography in Chronic Periodontitis Patients

open access: yesEuropean Annals of Dental Sciences
Purpose: Advancements in technology have driven a shift towards digital techniques alongside conventional screening methods indental radiology and across medical disciplines.
Arzu Alan, Tolga Tözüm, Hilmi Kansu
doaj   +1 more source

An Evaluation of Background Subtraction for Object Detection Vis-a-Vis Mitigating Challenging Scenarios

open access: yesIEEE Access, 2016
Background subtraction is a popular technique for detecting objects moving across a fixed camera view. The performance of this paradigm is influenced by various challenges, such as object relocation, illumination change, cast shadows, waving background ...
Suman Kumar Choudhury   +3 more
doaj   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar   +6 more
wiley   +1 more source

Orthosymplectic quotient quiver subtraction. Part II. Framed quivers

open access: yesJournal of High Energy Physics
The technique of orthosymplectic quotient quiver subtraction is introduced for framed orthosymplectic quivers. This involves subtracting an orthosymplectic quotient quiver from a framed orthosymplectic 3d N $$ \mathcal{N} $$ = 4 quiver gauge theory which
Sam Bennett   +2 more
doaj   +1 more source

A kepstrum approach to filtering, smoothing and prediction [PDF]

open access: yes, 2002
The kepstrum (or complex cepstrum) method is revisited and applied to the problem of spectral factorization where the spectrum is directly estimated from observations.
Barrett, J.F., Moir, T.J.
core  

An Inkjet‐Printed Platinum‐Based Temperature Sensing Element on Polyimide Substrates

open access: yesAdvanced Engineering Materials, EarlyView.
An inkjet‐printed, meander‐structured, nanoparticle platinum‐based resistive temperature sensors on polyimide substrates are demonstrated as proof‐of‐concept. Optimized sintering at 250°C enables stable conductive structures. The Pt100‐ and Pt1000‐type sensors exhibit linear resistance–temperature characteristics with stable TCR in the 20°C–80°C range,
Shawon Alam   +6 more
wiley   +1 more source

Combination of high-resolution cone beam computed tomography and metal artefact reduction software: a new image fusion technique for evaluating intracranial stent apposition after aneurysm treatment. [PDF]

open access: yes, 2019
We introduce a new imaging technique to improve visualisation of stent apposition after endovascular treatment of brain aneurysms employing high-resolution cone beam CT and three-dimensional digital subtraction angiography.
Abe, Yukiko   +10 more
core  

A Detailed Study of the Gluino Decay into the Third Generation Squarks at the CERN LHC

open access: yes, 2003
In supersymmetric models a gluino can decay into tb\tilde{\chi}^{\pm}_1 through a stop or a sbottom. The decay chain produces an edge structure in the m_{tb} distribution.
A. Pomarol   +30 more
core   +1 more source

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