نتایج جستجو برای: blast wave

تعداد نتایج: 238957  

2005
Boris Tomášik

Abstract. I investigate the correlation between spatial and flow anisotropy in determining the elliptic flow and azimuthal dependence of the HBT correlation radii in non-central nuclear collisions. It is shown that the correlation radii are in most cases dominantly sensitive to the anisotropy in space. In case of v2, the correlation depends strongly on particle species. A procedure for disentan...

Journal: :Computer methods in biomechanics and biomedical engineering 2015
L Esposito C Clemente N Bonora T Rossi

Primary blast injury (PBI) is the general term that refers to injuries resulting from the mere interaction of a blast wave with the body. Although few instances of primary ocular blast injury, without a concomitant secondary blast injury from debris, are documented, some experimental studies demonstrate its occurrence. In order to investigate PBI to the eye, a finite element model of the human ...

Behavior of blast wave in underwater explosion is of interest to metal forming community and ship designers. Underwater detonation is, also a potential hazard to the water intakes or a plant spent fuel pool. In this paper, some techniques for calculating free-field blast parameters such as pressure and impulse in underwater explosion and prediction of bubble pulsation parameters are presented a...

2016
Katsuki Niwa Kunio Mizutari Toshiyasu Matsui Takaomi Kurioka Takeshi Matsunobu Satoko Kawauchi Yasushi Satoh Shunichi Sato Akihiro Shiotani Yasushi Kobayashi

The ear is the organ that is most sensitive to blast overpressure, and ear damage is most frequently seen after blast exposure. Blast overpressure to the ear results in sensorineural hearing loss, which is untreatable and is often associated with a decline in the quality of life. In this study, we used a rat model to demonstrate the pathophysiological and structural changes in the inner ear tha...

Journal: :NeuroRehabilitation 2010
David F Moore Michael S Jaffee

The effects of blast on biological tissue are documented for some organ systems such as the lung. In the central nervous system (CNS) the mechanism of CNS injury following blast wave is unclear. For example is there a selective effect of blast on varying brain region or white matter bundles. The effect of blast on traumatic brain injury (TBI) has come into particular focus with the Global War o...

2009
H. J. van Eerten Z. Meliani

Gamma-ray burst afterglow flares and rebrightenings of the optical and X-ray light curve have been attributed to both late time inner engine activity and density changes in the medium surrounding the burster. To test the latter, we study the encounter between the relativistic blast wave from a gamma-ray burster and a stellar wind termination shock. The blast wave is simulated using a high perfo...

Journal: :The British journal of surgery 2011
C Owers J L Morgan J P Garner

BACKGROUND Blast injury is uncommon, and remains poorly understood by most clinicians outside regions of active warfare. Primary blast injury (PBI) results from the interaction of the blast wave with the body, and typically affects gas-containing organs such as the ear, lungs and gastrointestinal tract. This review investigates the mechanisms and injuries sustained to the abdomen following blas...

2015
Hibah O. Awwad Larry P. Gonzalez Paul Tompkins Megan Lerner Daniel J. Brackett Vibhudutta Awasthi Kelly M. Standifer

Physiological alterations, anxiety, and cognitive disorders are strongly associated with blast-induced traumatic brain injury (blast TBI), and are common symptoms in service personnel exposed to blasts. Since 2006, 25,000-30,000 new TBI cases are diagnosed annually in U.S. Service members; increasing evidence confirms that primary blast exposure causes diffuse axonal injury and is often accompa...

Journal: :Journal of neurotrauma 2009
Stanislav I Svetlov Stephen F Larner Daniel R Kirk Joseph Atkinson Ronald L Hayes Kevin K W Wang

The nature of warfare in the 21st century has led to a significant increase in primary blast or over-pressurization injuries to the whole body and head, which manifest as a complex of neuro-somatic damage, including traumatic brain injury (TBI). Identifying relevant pathogenic pathways in reproducible experimental models of primary blast wave exposure is therefore vital to the development of bi...

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