Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 44 for “"blast-induced"”.
-
Numerical Modeling of Blast-Induced Liquefaction
… to simulate liquefaction in saturated sandy soil induced by nearby controlled blasts. The purpose of the study is to help quantify soil characteristics under multiple and consecutive high-magnitude shock environments similar to those produced by large earthquakes. The simulation procedure involved …
-
Epigenetic Mechanisms in Blast-Induced Neurotrauma
Blast-induced neurotrauma (BINT) is a prevalent brain injury within both military and civilian populations due to current engagement in overseas conflict and ongoing terrorist events worldwide. In the early 2000s, 78% of injuries were attributable to an explosive mechanism during overseas …
-
A Study of Air-Blast-Induced Ground Motions
Made available in DSpace on 2014-12-08T23:56:54Z (GMT). No. of bitstreams: 1 6801703.pdf: 4251610 bytes, checksum: 39386a11fc3e26a1e339dfe86bb7116a (MD5) Previous issue date: 1967
-
Computational modeling of blast-induced traumatic brain injury
Blast-induced TBI has gained prominence in recent years due to the conflicts in Iraq and Afghanistan, yet little is known about the mechanical effects of blasts on the human head; no injury thresholds have been established for blast effects on the head, and even direct transmission of the shock …
-
Blast-Induced Tinnitus: A Combined Behavioral, Memri, And Electrophysiology Study
<p>ABSTRACT</p> <p>BLAST-INDUCED TINNITUS: A COMBINED BEHAVIORAL, MEMRE, AND ELECTROPHYSIOLOGY STUDY</p> <p>by</p> <p>JESSICA OUYANG</p> <p>May 2014 Advisor: Drs. Steve Cala & Jinsheng Zhang</p> <p>Major: Physiology</p> <p>Degree: Doctor of Philosophy</p> <p>Tinnitus and hearing loss are the …
-
Facial protective devices for blast-induced traumatic brain injury mitigation
… response of a human head subjected to a blast. Finite element models of the helmet with and without faceshields and goggles were developed from geometries of the Advanced Combat Helmet and the Enhanced Combat Helmet provided by the Natick Soldier Research, Development and Engineering …
-
Simulation of the generation and propagation of blast induced shock waves
Hybrid modelling of blast vibration uses the signal produced from a single hole test shot to simulate the vibration that would be produced by a full-scale production blast. This simulation can be used to determine optimum hole timings to minimise the vibration generated at a point of interest. This …
-
Transcranial Administration of Nano Pulse Laser Therapy for Blast Induced Neurotrauma
… as both a prophylactic treatment for a single blast TBI (bTBI) and through multiple applications as a therapeutic for repeated bTBI. In our first aim, male adult Sprague Dawley rats were treated with NPLT 24 hours prior to being subjected to blast TBI. Then the animals were assessed using Beam …
-
Mechanics of blast-induced traumatic brain injury in porcine brain tissue
<p>Blast-induced traumatic brain injury (bTBI) often results from the detonation of improvised explosive devices (IEDs) in war settings. However, the material properties of the brain and their changes during and after bTBI are currently not well understood. Characterizing brain tissue is …
-
Development of a helmet liner for protection against blast induced trauma
… of a helmet liner for protection against blast induced trauma. The proposed helmet liner design is based on the introduction of solid and fluid filler materials inside channels opened in the interior of a foam liner in order to enhance the attenuation of incoming shock waves. Primary …
-
Mitochondrial Dynamics Alteration in Astrocytes Following Primary Blast-Induced Traumatic Brain Injury
Mild blast-induced traumatic brain injury (bTBI) is a modality of injury that has been of major concern considering a large number of military personnel exposed to the blast wave from explosives. bTBI results from the propagation of high-pressure static blast forces and their subsequent energy …
-
The use of cellular materials to alleviate the damage from blast-induced fragments
… mitigate the damage that is caused by a blast‐induced fragment. In the experimental arrangement, a front plate is subjected to localised blast load to release a “controlled” fragment (cap) to impact a similar plate positioned 190mm apart. A cylindrical charge of Plastic Explosive 4 (PE4) …
-
The design and retrofit of buildings for resistance to blast-induced progressive collapse
… the suitability of structural design for blast resistance. Historic events have proven that buildings that are designed in compliance with conventional building codes are not necessarily able to resist extreme loads, particularly blast loads. While significant progress has been made …
-
Fluid-filled helmet liner concept for protection against blast-induced traumatic brain injury
… survivability in combat has increased, but blast-induced Traumatic Brain Injury (TBI) has become a prevalent injury in the battlefield. Often referred to as the "signature wound" of the current U.S. conflicts, blast-induced TBI is not a very well understood injury. In an effort to gain more …
-
The effects of blast induced imperfections on the energy absorption characteristics of square tubes
This investigation examines how blast-induced imperfections at opposite sides of a square tube affect the thin-wall structure and reduce its crush load when compressed in the axial direction i.e. its energy absorption characteristics.
-
Design of a composite combat helmet liner for prevention of blast-induced traumatic brain injury
Air blast-induced traumatic brain injuries (TBIs) represent a significant percentage of military personnel injuries observed in Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF). Prevalence of blast-induced TBIs is attributed to several factors, including improved body armor, …
-
Pressure versus impulse graph for blast-induced traumatic brain injury and correlation to observable blast injuries
… increased use of explosive devices in combat, blast induced traumatic brain injury (bTBI) has become one of the signature wounds in current conflicts. Animal studies have been conducted to understand the mechanisms in the brain and a pressure versus time graph has been produced. However, the …
-
The Influence of Biomechanics on Acute Spatial and Temporal Pathophysiology Following Blast-Induced Traumatic Brain Injury
Blast-induced traumatic brain injury (bTBI) remains a significant problem among military populations. When an explosion occurs, a high magnitude positive pressure rapidly propagates away from the detonation source. Upon contact, biological tissues throughout the body undergo deformation at high …
-
Investigating Injury Pathology of Blast-induced Polytrauma and Assessing the Therapeutic Role of Hemostatic Nanoparticles after Blast Exposure
… combat related injuries (Ramasamy et al. 2008). Blast overpressure from explosions can cause barotrauma to the lungs and the brain. Blast-induced mild traumatic brain injury has been labeled the "signature wound" of current military conflicts in Iraq and Afghanistan (Snell and Halter 2010). In …
Page 1 of 3