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.
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Showing 1 to 20 of 83 for “"venting"”.
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Experimental study of reservoir turbidity currents venting
… pass-through sediment management technique of venting. The main focus was to explore and develop a better understanding of the streamwise flow velocity and suspended sediment concentration vertical profiles, and the deposition patterns while the turbidity currents are vented. For this, two …
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Flow problems in air venting and air sparging
Soil Vapor Extraction (SVE) and Air Sparging have been used for site remediation for about ten years, but most of the past designs are based on experiences and numerical models. Understanding toward the physical problems is far from complete, and some simplified assumptions used in those models may …
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Numerical modeling of methane venting from lake sediments
… "breathing" gas conduits explains methane venting from lake sediments. This research lays the groundwork for integrated modeling of methane transport in the sediment and water column to constrain the atmospheric flux from methane-generating lakes.
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Coping experiences of partners of professional nurses venting traumatic information
… vent traumatic information to their partners. By venting to their partners, they rely on their partners for support. However, the researcher could find no current studies on how these partners cope with the traumatic information being vented to them. The aim of this study is to explore and …
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Improved Venting for Flammability Limit Testing Using ASTM E681 Apparatus
… the reproducibility of the ASTM E681 test. Venting was identified as a variable of flammability limits not yet addressed. Limitations of the current system for sealing and venting (a rubber stopper) were identified and addressed by the development of a custom burst disc. The burst disc was …
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Gas-generated fractures and methane venting in a deepwater Arctic setting
… present. During glacial-interglacial cycles, gas venting behavior in shallow water (< 400 m) close to the West Svalbard margin can be explained by gas hydrate dissociation due to pressure reduction caused by lowering of relative sea level or isostatic rebound. However, the process of gas venting …
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Experimental and computational study of flames venting externally during full scale flashover fires
In this study, externally venting flames have been examined during two series of full scale flashover fires. The purpose of the work is to investigate the likelihood of external fire spread from a burn room window with standard glass, when the external facade is non-combustible. The effects on …
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Development of safe and ready to eat frozen oyster products using microwave steam-venting technology
… quality and safe frozen oyster products in steam venting packages that are microwavable. Based on this study, a combination of 100 g of frozen oyster meat with 200 g of frozen mixed vegetables provided retention of almost 95% of the meat’s moisture after 300 s of microwave cooking. In addition, …
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The effect of venting configuration on the blast response of an aircraft unit load device
The inclusion of venting areas in aircraft unit load devices (ULDs) as a potential blast mitigation technique is investigated in this work. Damage to the ULD, such as large deflections or container rupture, from an internal explosion threatens to tear the aircraft skin and cause fuselage …
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Exploring the relationship between crustal permeability and hydrothermal venting at mid-ocean ridges using numerical models
… as a key controlling factor for hydrothermal venting. In the first manuscript, I use 2-D numerical models to find that the distribution of permeability in the crust controls fluid velocity as well as the amount of mixing between hot hydrothermal fluids and cold seawater. This, in turn, effects …
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Effects of thermal stresses on Pressurised Water Reactor nuclear containment vessels following a Loss of Coolant Accident with assimilated containment filtered venting system
… increase. Different containment filtered venting systems (CFVS) are also investigated in this study as severe accident management systems. CFVS have historically been included in boiling water reactor (BWR) designs, but following the Fukushima Daiichi nuclear accident, they are being …
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A study to determine the efficacy of A 0,2 μm air venting final in-line intravenous filter in reducing the complications of intravenous therapy
The effect of a 0,2 μm air venting in-line filter on the incidence of post-infusion phlebitis was studied in a prospective, controlled, observer-blind investigation of 132 infusions. The filters were changed daily and the infusions were allowed to continue until no longer required, or until there …
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Development of Novel Hearing Aid Technologies
… identified and the areas of shape design and venting have been explored. Proposed is an alternative multiple venting configuration incorporating multiple small acoustic vent paths. In order to design universal hearing aid products one must first have an understanding of the variation in ear …
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Experimental investigations on gas explosions in partially confined regions
… develop a new empirical equation for explosion venting. A literature review suggested that the propagating flame/obstacle interactions in enclosures with large L/D ratio (> 2) result in flame acceleration and subsequent pressure build-up during a gas explosion. However, the interactions in …
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Implementation of vented fuel assemblies in the supercritical CO₂-cooled fast reactor
… to investigate the utilization of fuel assembly venting in the reference design of the gas-cooled fast reactor under study as part of the larger research effort at MIT under Gen-IV NERI Project No. 05-044, "Optimized Competitive Supercritical-CO₂ Cycle GFR for Gen-IV Service." The focus of this …
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Exploration of Well-Being Through Art Media Preference and Emotion Regulation Strategies
… strategies (reappraisal, distraction, venting and suppression), mental health variables (emotional wellbeing, psychological well-being and social well-being), and mental illness variables (depression, anxiety, and stress). The purposed of this study was to explore the optimal level of …
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Coping with HIV-seropositive status: a psychoneuroimmunological perspective
… nor for coping by means of focusing upon and venting of emotions. Five subjects who had been infected for less than two years were excluded from analyses regarding immune functioning. For the remaining 22 subjects, no significant associations between psychosocial factors and CDS-cell counts …
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Vented gas explosions
Explosion venting technology is widely accepted as the effective constructional protection measures against gas and dust explosions.The key problem in venting is the appropriate design of the vent area necessary for an effective release of the material i.e. the pressure developed during explosion …
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A STUDY OF OPTIMISM, COPING STRATEGY, AND PSYCHOLOGICAL QUALITY OF LIFE AMONG WHITE, KOREAN, AND AFRICAN AMERICAN FEMALE OLDER ADULTS
… and avoidant copings (e.g., self-distraction and venting). Eight coping strategies (e.g., active coping, planning, positive reframing, religion, denial, venting, behavioral disengagement, and self-blame) were significantly related to optimism (p</p> <p>Regarding race and quality of life, five QOL …
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A Hazard Assessment of a Landfill Site
… bar surveys to determine the area where passive venting of methane, carbon dioxide and hydrogen sulfide occurred. The concentrations of the gases were then determined. Subsequently boreholes were positioned at strategic positions across the site and chemical analysis carried out to identify the …
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