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 299 for “"Volatile organic compounds"”.
-
Volatile organic compounds in seawater
… to seawater and related samples to concentrate volatile organic compounds. The concentrates were subsequently analyzed by glass capillary gas chromatography and combined gas chromatography-mass spectrometry. The compound identities and the spatial and temporal distributions of their …
-
Comprehensive Mapping of Volatile Organic Compounds in Fruits
Volatile organic compounds (VOCs) are the key aroma producers in fruits and sensory quality of fruits is widely determined by qualitative and quantitative composition of VOCs. The aroma of grape is a complex of hundreds of VOCs belonging to different chemical classes like alcohols, esters, acids, …
-
Metal organic frameworks as sorbents for volatile organic compounds
Metal organic frameworks (MOFs) are a class of highly porous materials with large surface areas, large pore volumes, and chemical tunability. These features make MOFs desirable as sorbents for applications such as gas storage, gas separation, and gas sensing. In this work, MOF thin films of …
-
An investigation of volatile organic compounds in landfill gas
… this thesis contains the results on the study of volatile organic compounds (VOCs) in landfill gas from seven landfill sites in the western region of Melbourne, Victoria, Australia. Sampling methods including sampling with adsorption tubes, tedlar bags and cryogenic trapping were investigated and …
-
Biofiltration of volatile organic compounds using fungal-based bioreactors
Stricter regulations for volatile organic compounds have increased the demand for efficient abatement technologies. Biofiltration, a process in which contaminated air is passed through a biologically active bed, can be used to remove these pollutants from air streams. In this study, the black fungi …
-
Solubilization of volatile organic compounds in edible nonionic surfactants
Volatile Organic Compounds (VOCs) are major subsurface contaminants and exist as Non-Aqueous Phase Liquids (NAPLs) in the subsurface. Pump-and-treat remediation is the most common technology used to remediate contaminated groundwater. However, experience has revealed that the traditional …
-
Exposure to Volatile Organic Compounds and Effect on Neurobehavioral Function.
… Range Study were analyzed to examine exposure to volatile organic compounds (VOCs). Self-reported contact to chemical products and blood concentrations of specific chemicals were analyzed. Neurobehavioral function was assessed by simple reaction time test (SRTT), symbol digit substitution test …
-
Adsorption Behavior of Volatile Organic Compounds in Metal -Organic Frameworks
… aromatics, and heavily halogenated compounds. Hydrogen-bonding interactions were found to be important for the adsorption of alcohols and amines. However, the adsorption of hydrogen-bond bases was found to be greatly lessened from that of the other MOFs. Thermodynamics of adsorption …
-
Porous metal-organic frameworks for sorption of volatile organic compounds
Metal-organic frameworks (MOFs) present potential for various applications such as gas sorption, gas storage, sensing, drug delivery, and catalysis. This attracts researchers to design and synthesize MOFs that can respond to a specific application. In this thesis, mixed ligands 34pba and 44pba …
-
The study of volatile organic compounds in urban and indoor air
… review of the literature concerning the study of volatile organic compounds in the atmosphere. It examines the basic chemistry of the atmosphere and the roles that organic compounds play in it. Also investigated are the methods of sampling and analysing the volatile organic compounds in the air, …
-
A Gas Sensor for the Selective Detection of Volatile Organic Compounds
Volatile Organic Compounds (VOCs) are an important class of air pollutant because many of them are harmful to human health. VOCs are typically present at very low concentrations – parts-per-billion (ppb) and lower – which makes their detection a significant challenge. Standard measurement …
-
Modeling Diffusion-Controlled Emissions of Volatile Organic Compounds from Building Materials
… worker productivity, and physical property. Volatile organic compounds (VOCs) are a common class of indoor air pollutants. Building materials such as treated wood, pressed-wood products, wallboard, sealants, adhesives, floor coverings, and paints can be sources of VOC emissions. The …
-
Photocatalytic destruction of volatile organic compounds from the oil and gas industry.
… in gas-solid photocatalysis of aromatic volatile organic compounds. The results indicate photonic efficiency is a function of mass transfer and catalyst deactivation rate. The development of future reactors which can optimise the use of photons and maximize photonic efficiency is …
-
EXAMINATION OF VOLATILE ORGANIC COMPOUNDS ASSOCIATED WITH HUMAN DECOMPOSITION BYPRODUCTS IN SOIL
… human remains release naturally produced volatile organic compounds (VOCs) that are specific to the process of decay. These VOCs can act as markers that indicate remains are present [1] and presumably can be used to indicate whether or not remains were once present in a given location, …
-
Urinary Volatile Organic Compounds (VOCs) in the Diagnosis of Urothelial Bladder Cancer
… a detecting system for bladder cancer urinary volatile organic compounds (VOCs) biomarkers and explore its application in non-invasive diagnosis of bladder cancer. Urinary VOCs are a class of chemical compounds found in urine that generated from biological activities of cells, cancer cells have …
-
Atmospheric Impact of Biogenic Volatile Organic Compounds: Improving Measurement and Modeling Capabilities
Biogenic volatile organic compounds (BVOCs) are naturally occurring organic compounds emitted by plants, trees, and ecosystems, exerting a profound influence on the Earth's atmosphere, air quality, climate, and ecosystem dynamics. This research project aims to advance our understanding of BVOC …
-
Modeling Diffusion-Controlled Emissions of Volatile Organic Compounds From Layered Building Materials
… are a major source of indoor air contaminants. Volatile organic compounds (VOCs) are an important class of contaminants prevalent in indoor air. Attempts have been made to model the emission of VOCs from building materials. Diffusion has been shown to control the rate of mass transfer within …
Page 1 of 15