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 21 for “"Ground Support"”.
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Alternative Fuels For Ground Support Equipment
… and materials to save and transform traditional ground operation fuel. This topic has taken precedence within the airline and aviation industries due to alarming product costs in accordance with the dilapidation of global and domestic economies. This is also in conjunction with similarly volatile …
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New ground: support structure for human habitats.
Massachusetts Institute of Technology. Dept. of Architecture. Thesis. 1974. M.Arch.
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Quantifying Seismic Risk for Portable Ground Support Equipment at Vandenberg Air Force Base
This project develops a quantitative method to evaluate the seismic risk for portable GSE at Vandenberg Air Force Base. Using the latest probability data available from the USGS, risk thresholds are defined for portable GSE having the potential to cause a catastrophic event. Additionally, an …
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Scaling air quality effects from alternative jet fuel in aircraft and ground support equipment
… to model alternative jet fuels in aircraft and ground support equipment. These linear scaling factors were based on currently published studies comparing standard diesel and jet fuels with alternative jet fuels. It was found that alternative jet fuels lower or maintain all air pollutant …
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Research on the Performance of JP-8, Single Fuel Concept, in Diesel Engine Application for Airport Ground Support Equipment
… emission reduction, the focus is on the airport ground support equipment (GSE) through the use of the US military’s Single Fuel Concept policy. This concept mandates that deployed U.S. military ground vehicles must be operable with aviation fuel (JP-8) and with this substitution of JP-8 for …
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Geotechnical characterization of coal refuse for use as a backfill material
… and residual mine subsidence resulting from underground coal mining have caused surface damage to land and structures. A method of subsidence mitigation successfully used abroad, and to a much lesser extent in U.S. coal mines, is backfilling. In addition to the possible benefits of subsidence …
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Development of a NASA Flight Surgeon Quick Reference Guide and Evaluation of the International Space Station Medical Kit: A Model for Resource-Limited Populations
… medical care on the part of NASA’s medical ground support for a unique patient population in an austere environment. Adapting terrestrial clinical guidelines for spaceflight requires not only reviewing both the current medical standard of care from various governing medical bodies, but also …
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The Effects of Backfilling on Ground Control and Recovery in Thin-Seam Coal Mining
… deposits are exhausted, methods of underground thin-seam extraction will have to be developed. These methods must be capable of removing coal efficiently and economically. Past experience with highwall mining of thin-seam coal has indicated that recovery rates tend to be lower than in …
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Parallel computation in efficient non-linear finite element analysis with applications to soft-ground tunneling project
Reliable prediction and control of ground movements represent an essential component of underground construction projects in congested urban environments, to mitigate against possible damage to adjacent structures and utilities. This research was motivated by the construction of a large underground …
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Assessment of geotechnical considerations for ground control and stability at Nkana Synclinorium copper mine Mopani Plc, Zambia.
… license area in Kitwe. The mine has been an underground operation since 1930 when the first shaft was sunk at Central Shaft. Vertical Crater Retreat (CVR) and Sub-Level Curving (SLC) are the main copper ore mining methods used at the mine. Due to increase in mine depth by 137m, from 3510ft to …
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Assessment of geotechnical considerations for ground control and stability at Nkana Synclinorium copper mine Mopani Plc, Zambia.
… license area in Kitwe. The mine has been an underground operation since 1930 when the first shaft was sunk at Central Shaft. Vertical Crater Retreat (CVR) and Sub-Level Curving (SLC) are the main copper ore mining methods used at the mine. Due to increase in mine depth by 137m, from 3510ft to …
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The Du Toitskloof Tunnel project : the construction of the (south) soft ground tunnel, Western Cape, South Africa
… on the excavation and construction of the soft ground tunnel, by means of artificial ground freezing for ground support and stabilisation. The soft ground section of the tunnel being situated at the Western portal, and forming approximately 168 metres of the four kilometre main tunnel. The …
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Determining the Location of Runway Exits Using Airport Surface Detection Equipment
… safe monitoring of aircraft movements as well as ground support vehicle operating on the airfield. Like most radar-based technologies, ASDE-X can report the position of any aircraft within a one second time interval. This data not only contains the geographic position, but also reports speed, …
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Back-analysis methods for optimal tunnel design
… arrangements allow an adaptive tunnel support design during construction such as the NATM approach. Utilization of measurements can reveal important aspects of the ground-support interaction, warning of potential problems, and design optimization and forecasting of future behavior of …
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A geotechnical review and considerations in the design of a new mining method at Konkola Mine
… mapped data while the second part involved underground mapping. The collected data was analysed using a computer based spreadsheet to determine the rock mass rating and the information was subjected to evaluation using specialised geotechnical Phase2D software.A review of the design and …
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Geotechnical engineering design of a tunnel support system - a case study of Karuma (600MW) hydropower project
… and industrialization, the construction of underground tunnel structures are preferred as they limit interferences with existing surface uses of the land and water bodies. Although underground tunnels are a common flexible construction alternative, they are high hazard risk structures. The risks …
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Rediscovering the arcane science of ground handling large airships : an investigation into ways of reducing the risks inherent in the development of a new generation of very large airships and of establishing guidelines for their ground handling procedure
… now defunct CargoLifter project, concerns the ground handling and support systems of the large rigid airships (commonly known as "Zeppelins") that were built between 1900 and 1940. The intention was to assess the value of such historical information as has survived from the previous generation …
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Influence of heave reducing piles on ground movements around excavations
… a means of reducing movements in the surrounding ground. The work focussed on the use of piles installed as a part of top down basement construction, a technique used in conjunction with deep excavations in urban areas. The investigations sought to explore the effectiveness of bored piles as a …
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High Spatial Resolution Measurement of Tendon Reinforcement in Underground Construction Works
… reinforcement responses that are induced by ground deformations can be characterized and quantified. This has been approached from an intrinsic sensing perspective, whereby several instrumenting procedures have been developed to directly couple fiber optic strain sensors with various …
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Development of Optical Communication Terminals for Increasing Connectivity on Small Satellites
… Mbps link to a low-cost portable 28 cm optical ground station called PorTeL (Portable Telescope for Lasercom), operated in space to demonstrate key technologies for risk reduction of the CLICK-B/C crosslink terminal. We present the f irst results of in-space operation of a microelectromechanical …
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