نتایج جستجو برای: curved strut

تعداد نتایج: 20864  

Journal: :Advances in Civil Engineering 2023

The vertical rotation method is a special option for steel tower construction in fabricated bridge. tall prefabricated on the ground and then pulled to its designed position using wires. Traditional always uses taller temporary structure provide an upward pull force lift member; however, would spend much time, cost, work high above ground. For instance, Jinwu Bridge tower’s weight was so heavy ...

بشری, منا, تاپاک, لیلی, سالمی, فاطمه, شکری, عباس, کرکه‌آبادی, حامد,

Background and Objective: The preparation of the root canal (i.e., cleaning and shaping) is the main step in the endodontic treatment. The nickel-titanium rotary files result in fewer errors during the preparation of curved canals. This study aimed to compare the transportation of Neolix and Reciproc rotary systems in curved canals using cone beam computed tomography (CBCT). Materials and Meth...

2005
MARK JOHNSON

Using both Monte Carlo and numerical techniques, Taylor dispersion in a curved tube at low Dean numbers has been evaluated and the results are in qualitative agreement with those found by Janssen (1976) : Dn2Sc is the controlling parameter with Dell falling to about 0.2 of its straight-tube value at high values of DnaSc. Agreement with available experimental data is generally good. Further, we ...

1995
Uwe F. Mayer

Gradient flows for energy functionals have been studied extensively in the past. Well known examples are the heat flow or the mean curvature flow. To make sense of the term gradient an inner product structure is assumed. One works on a Hilbert space, or on the tangent space to a manifold, for example. However, it is possible to do without an inner product. The domain of the energy functionals c...

Journal: :Circulation 2002
John A Ormiston Mark W I Webster Peter N Ruygrok

To the Editor: Kastrati et al recently reported1 significantly less restenosis with lesions randomized to deployment of one stent design (ACS RX Multi-Link, [ML]) than with a related design (Multi-Link RX Duet, [DT]) from the same manufacturer (Guidant). They attributed the difference in restenosis to the difference in strut thickness. Although the two stent designs do differ significantly in s...

2015
Zhigang Han Linxing Feng Hongwei Du Zhao Sun Sining Hu Jiannan Dai Meng Sun Lei Xing Jingbo Hou Shaosong Zhang Bo Yu

While older age associates with adverse percutaneous coronary intervention (PCI) outcomes, detailed information relating age to stent strut coverage and neointimal characteristics is lacking. One hundred nineteen patients with 123 sirolimus-eluting stents (SESs) were divided into 3 groups: group A (≤55 years), group B (56-65 years), and group C (>65 years). At 6 and 12 months of follow-up, opti...

Journal: :The Laryngoscope 2010
Allison Zemek Rohit Garg Brian J F Wong

OBJECTIVES/HYPOTHESIS Characterizing the mechanical properties of structural cartilage grafts used in rhinoplasty is valuable because softer engineered tissues are more time- and cost-efficient to manufacture. The aim of this study is to quantitatively identify the threshold mechanical stability (e.g., Young's modulus) of columellar, L-strut, and alar cartilage replacement grafts. STUDY DESIG...

2015
Yongsung Suh Byeong-Keuk Kim Dong-Ho Shin Jung-Sun Kim Young-Guk Ko Donghoon Choi Yangsoo Jang Myeong-Ki Hong

PURPOSE To evaluate the effect of statin treatment on strut coverage after drug-eluting stent (DES) implantation. MATERIALS AND METHODS In this study, 60 patients were randomly assigned to undergo sirolimus-eluting stent (SES) or biolimus-eluting stent (BES) implantation, after which patients were randomly treated with pitavastatin 2 mg or pravastatin 20 mg for 6 months. The degree of strut c...

2011
Ruoyu Zhang Christian Hagl Dmitry Bobylev Thomas Breymann Jan D Schmitto Axel Haverich Marcus Krüger

UNLABELLED We present a case of sternal steel strut dislodgement and migration in a patient undergoing Ravitch repair for pectus excavatum (PE) 37 years ago. Broken struts perforated the right ventricle and right ventricular outflow tract (RVOT) and additionally migrated into the left upper lobar bronchus.Dislodged sternal struts represent rare complications after surgical repair of patients su...

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