نتایج جستجو برای: rupture prediction

تعداد نتایج: 294556  

Journal: :Journal of the mechanical behavior of biomedical materials 2011
Aine P Tierney Anthony Callanan Timothy M McGloughlin

An abdominal aortic aneurysm (AAA) is defined as a permanent and irreversible localized dilatation of the abdominal aorta. A reliable, non-invasive method to assess the wall mechanics of an aneurysm may provide additional information regarding their susceptibility to rupture. Acoustic radiation force impulse (ARFI) imaging is a phenomenon associated with the propagation of acoustic waves in att...

2015
Filippos Vallianatos Georgios Michas Giorgos Papadakis

Earthquakes have always been one the most intriguing natural phenomena for mankind. The abruptness of the shaking ground and the devastating consequences for the human environment were always attracting people’s fear and wonder. Despite the large amount of effort that has been dedicated in understanding the physical processes that lead to the birth of an earthquake and the significant progress ...

Journal: :Plant physiology 2009
Hervé Cochard Teemu Hölttä Stéphane Herbette Sylvain Delzon Maurizio Mencuccini

Cavitation resistance is a key parameter to understand tree drought tolerance but little is known about the mechanisms of air entry into xylem conduits. For conifers three mechanisms have been proposed: (1) a rupture of pit margo microfibrils, (2) a displacement of the pit torus from its normal sealing position over the pit aperture, and (3) a rupture of an air-water menisci in a pore of the pi...

2017
Hao Qin Qixia Yang Qiang Zhuang Jianwu Long Fan Yang Hongqi Zhang

OBJECTIVE To investigate the morphological and hemodynamic parameters associated with middle cerebral artery (MCA)bifurcation aneurysm rupture. METHODS A retrospective study of 67 consecutive patients was carried out based on 3D digital subtraction angiography data. Morphological and hemodynamic parameters including aneurysm size parameters (dome width, height, and perpendicular height), long...

2017

RESULTS: Participants (85% male, 73.1±7.2 years) had a baseline aneurysm diameter of 49.6±7.7 mm, and USPIO enhancement was identified in 146 (42.7%) participants, absent in 191 (55.8%), and indeterminant in 5 (1.5%). During follow-up (1005±280 days), 17 (5.0%) abdominal aortic aneurysm ruptures, 126 (36.8%) abdominal aortic aneurysm repairs, and 48 (14.0%) deaths occurred. Compared with those ...

2017
Rachael. Forsythe

RESULTS: Participants (85% male, 73.1±7.2 years) had a baseline aneurysm diameter of 49.6±7.7 mm, and USPIO enhancement was identified in 146 (42.7%) participants, absent in 191 (55.8%), and indeterminant in 5 (1.5%). During follow-up (1005±280 days), 17 (5.0%) abdominal aortic aneurysm ruptures, 126 (36.8%) abdominal aortic aneurysm repairs, and 48 (14.0%) deaths occurred. Compared with those ...

2000
A. Johansen D. Sornette

The fracture of materials is a catastrophic phenomenon of considerable technological and scientific importance. Here, we analysed experiments designed for industrial applications in order to test the concept that, in heterogeneous materials such as fiber composites, rocks, concrete under compression and materials with large distributed residual stresses, rupture is a genuine critical point, i.e...

2005
Baoping Shi James N. Brune

Two-dimensional lattice particle models have been used to simulate dynamic thrust faulting and its effects on near-fault ground motions. The lattice particle modeling approach has been demonstrated as an efficient way to model the dynamic rupture phenomena observed from a foam rubber experiment on dipping faults. We constructed a 42 dipping fault model to simulate near-fault ground motions unde...

Journal: :jentashapir journal of health research 0
farideh farahbakhsh fertility, infertility and perinatology research center, imam khomeini hospital, medicine faculty, ahvaz jundishapur university of medical sciences, ahvaz, ir iran mojgan barati fertility, infertility and perinatology research center, imam khomeini hospital, medicine faculty, ahvaz jundishapur university of medical sciences, ahvaz, ir iran farideh moramezi fertility, infertility and perinatology research center, imam khomeini hospital, medicine faculty, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; fertility, infertility and perinatology research center, imam khomeini hospital, medicine faculty, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-9161115368, fax: +98-6113335399 zeinab zamanpoor fertility, infertility and perinatology research center, imam khomeini hospital, medicine faculty, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

case presentation our patient was a 32-year-old primigravid woman presented with abdominal and flank pain. her gestational age was 30 weeks. during admission in aria hospital, she had a significant hemoglobin level drop and developed signs of acute abdomen. conclusions laparotomy was performed and fundal uterine vessels rupture was seen and ligated. a 30-week-male fetus was born by cesarean sec...

Journal: :international journal of reproductive biomedicine 0
hamideh pakniat nasrin soofizadeh marzieh beigom khezri

background: uterine rupture in pregnancy is rare and often could be life threatening and catastrophic. myomectomy is one of very common surgeries in gynecology, performed as the vaginal, abdominal and laparoscopic surgeries. pregnancies occured after abdominal and laparoscopic myomectomy are high risk for uterine rapture. case: patient was a 28 years old female, pregnant woman at the 20 wks of ...

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