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 11 of 11 for “"hazardous gases"”.
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Interactive Wireless Sensor for Remote Trace Detection and Recognition of Hazardous Gases
<p>The interactive wireless sensor detects many hazardous gases such as Hexane, Propane, Carbon monoxide and Hydrogen. These gases are highly toxic and used in different kinds of manufacturing industries, domestic purpose and so on. So, building a sensor that can detect this kind of gases can save …
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Synthesis and Fabrication of Alpha Phase Iron Oxide (α-Fe2O3) Nanostructured doped with Ruthenium for Highly Sensitive and Selective Flammable and Toxic Gas Sensor
… industries causes the release of flammable and hazardous gases, which affect human health, into the atmosphere. Many research efforts have been focused on detecting and monitoring these gases using metal oxide semiconductor materials. This study investigates the gas sensing performance of …
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An experimental study of forced ventilation glovebox fires
… dangerous since glovebox failure may allow hazardous gases to escape containment. A full scale mockup of a glovebox and corresponding air flow system was constructed. Careful consideration was given to the two components expected to cause glovebox failure: the gloves and windows. In addition …
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The properties of sputtered copper oxide thin film for sensing application
… the safety of human from being exposed to hazardous gases. The important features of a gas sensor are the ability to response towards the gas at the shortest time, the sensitivity towards the specific gas and the portability of gas sensor device. In this thesis, the optimum parameters …
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Printable and Machine Intelligent 0D/2D Materials Gas Sensor Arrays
… ability to distinguish different species of gases and quantitatively measure trace-level gas concentrations is crucial for pollution monitoring, hazard gas detection, point-of-care disease monitoring, etc. Yet the most widely used gas sensors based on semiconducting metal oxide (SMO) suffer …
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Exergy Analysis of Pulverized Coal-Fired Ultra Supercritical Power Plants
… the electricity generated, the emission of the hazardous gases plays a vital role in the research field. The world’s power generation majorly depends on fossil fuels like coal and natural gases. Among power plants, pulverized coal-fired power plants are of great concern due to the relatively …
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STUDIES OF TIN OXIDE GAS SENSORS FOR GAS CHROMATOGRAPHIC DETECTION
… static gas alarm systems for the monitoring of hazardous gases, however, their application has been limited by a lack of selectivity. In this work a semiconducting gas sensor has been configured for use as a gas chromatographic detector thus combining the sensitivity of semiconductor sensors …
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Development of low cost thermal insulating materials
… moisture absorption and the presence of hazardous gases during burning. The temperature comparison test showed that the recycled polymer slab (RPS) and expanded polyethylene foam (EPEF) retards the flow of heat to levels comparable to that of the locally obtained thermal insulation. The …
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Synthesis, Fabrication and Surface Modification of Nanocrystalline Nickel Oxide for Electronic Gas Sensors
… with monitoring of combustible and toxic gases because of their higher sensitivity, fast response and recovery times, low power consumption, and low fabrication cost. Nickel oxide (NiO) is a wide band gap and p-type semiconductor with stable chemical and physical properties. NiO has been …
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Nanoscale characterization of InSb/InAs novel functional semiconductor nanostructures for LEDs / Caracterización a nanoescala de nanoestructuras funcionales novedosas de InSb/InAs para LEDs
… result, these QDs can be used to detect various hazardous gases with MIR signatures, among other applications. In this framework, the objective of the present Thesis is to explore the applicability of the migration enhanced epitaxy (MEE) growth technique to fabricate these InSb/InAs QDs, as an …
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Challenges impeding South African municipalities from adopting waste-to-energy schemes : an exploratory approach
… for various reasons including emissions of hazardous gases, and 10. Delays in processing environmental and legal applications.