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 311 for “"Odor"”.
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Efficacy of Odor Scavengers in Reducing Odor Compounds in Water, Milk, and Soymilk
Odor detection thresholds of hexanal, 2-heptenal, 2-pentanone, and 2,4-nonadienal were determined in spring water, high temperature short time (HTST) 2% fat milk, and extended shelf life soymilk. The efficacy of odor scavenger's beta-cyclodextrin, D-sorbitol, and nylon 6 in removing these odors was …
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Odor intensity learning in Drosophila
… learn to discriminate not only between different odorants but also between different concentrations of the same odor. Olfactory associative learning has been described as a pairing between odorant and electric shock and since then, most of the experiments conducted in this respect have largely …
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Anaerobic Digestion: Factors Effecting Odor Generation
… land application of biosolids is nuisance odors associated with biosolids. Despite its importance, few studies have been done to enhance our knowledge of odor causing processes. This study was conducted to evaluate the effects of some factors that have been thought to be linked to odor …
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Odor Monitoring at Wastewater Treatment Plants
… and corrosion is one of the major sources of odor in wastewater treatment plants. Evaluation of existing or potential odor problems requires knowledge of the type of compounds likely to cause such problems and the mechanism of their formation in wastewater systems which is discussed in this …
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Odor mapping in neuroscience and design
… In this thesis we examined the mappings of the odors to pathways in the brain as an initial assessment for the feasibility of digital odor. The results confirmed previous findings that each odor activated 1-6 neurons. Next, we looked at a controversial theory of odor detection using vibrations …
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Temperature Effects on Drinking Water Odor Perception
… determine whether or not they could detect the odorants used in this study. Following triangle testing, panelists underwent directional difference testing to determine if temperature affected odor perception when presented with two water samples. Following directional difference testing, …
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Odor control in sewers using calcium nitrate
Wastewater often creates nuisance odors. Effectiveness of Calcium Nitrate (trade name Bioxide) to control odors was investigated in the collection system of Clark County Sanitation District over a three month period in the summer of 1993. Bioxide feed stations were set up on the nine sewer lines …
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A Fast-Response Odor Chromatographic Sniffer (FOX)
This thesis in microscale gas chromatography (μGC) creates a paradigm shift in rapidly analyzing chemicals in the environment or analytes. We are looking for unexpected chemical changes that have been added purposefully or unintentionally. The work examines various aspects of μGC technology, …
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Development of procedures for determining industrial odor thresholds.
Dept. of Chemistry and Biochemistry. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1979 .V288. Source: Masters Abstracts International, Volume: 40-07, page: . Thesis (M.A.Sc.)--University of Windsor (Canada), 1979.
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PEROVSKITE PHOTOCATALYSTS FOR THE DECOMPOSITION OF ODOR MOLECULES
… acid (PA), an organic molecule responsible for odorous environment. Additionally, the photodecomposition of ethanol was studied as a model molecule of VOCs and one of the transformation products (TPs) of propionic acid photodegradation. The primary goal is to optimize an innovative photocatalyst …
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Memory Enhances Search Strategies During Odor-Guided Foraging
Odor-guided searches are notoriously difficult due to the sparse and intermittent nature of odor plumes. However, rodents can adaptively modify their search strategy using internal representations of their dynamic environment. This allows for selecting the optimal strategy for making use of complex …
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Odor sensitivity and the presence of p-cresol
Olfactory function declines throughout the different stages of kidney disease. End-stage renal disease (ESRD) patients have experienced improved olfactory function after dialysis, leading some researchers to suspect uremic toxins as the cause of olfactory decline (Raff et al., 2008; Bomback & Raff, …
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Managerial and Nutritional Manipulation to Reduce Swine Odor
… three areas, namely iron bioavailability, dust/odor reduction technologies, and dietary manipulation to reduce urine pH and swine odor. The first section, iron bioavailability, contains three experiments which were conducted as hemoglobin depletion/repletion studies involving newly weaned …
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The characterization of rum as an odor object
Embargo set by: Seth Robbins for item 109940 Lift date: 2021-02-08T18:40:00Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system
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The Role of Drosophila Odorant Receptors in Odor Coding
… research, the expression patterns of fly's 62 odorant receptors (ORs) were largely unknown. I set out to understand the rules of connectivity of olfactory sensory neurons and the resulting properties of olfactory circuit. Consequently, we assembled maps of the olfactory neuron projections in …
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Evaluation of Odor-Reducing Commercial Products for Animal Waste
Six odor-reducing commercial products were tested for their efficacy in reducing odors from dairy and swine wastes. A sensory panel method was utilized for odor evaluations, in which the panel played an important part. Comparisons between products were made for agitated and unagitated conditions …
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Mosquito odor receptor gene targets to alter vector host choice
… meal. Mosquitoes detect semiochemicals through odorant receptors, each of which interact with specific odorants. Differences in feeding behaviors have significant consequences for the vectorial capacity of Anopheles mosquitoes. Mosquitoes in the genus Anopheles vector the pathogens causing human …
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Olfactory working memory: the role of perceived odor name-ability
… the relationship among three factors: perceived odorant name ability, whether the odorant was ingested through a single nostril or both nostrils, and how the odorant is represented in working memory. Participants smelled odorants through the left or right nostril or with both nostrils and then …
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Non-Canonical Odor Coding Ensures Robust Mosquito Attraction to Humans
… dioxide (CO2) emitted from breath and human body odor, which is a mixture of more than 200 different individual odorants. Although the exact odor profile of people varies considerably, Aedes aegypti are incredibly reliable in finding humans to bite, despite widespread efforts to by humans to mask …
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