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 124 for “"Odour"”.
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Odour evaluation using arrays of conducting polymer sensors.
… established instrumental methods of assessing odours. The introductory chapter reviews the progress which has been made by various groups in developing these so called "electronic noses". Chapters 3 and 4 deal with the characterisation of a series of water-based beverages and a range of tobacco …
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Liposome-OBP conjugates for odour reduction and fragance release
A atividade diária e o exercício físico são responsáveis pela produção de odores corporais desagradáveis que podem causar ansiedade e embaraço social. A procura de novas soluções que previnam o desenvolvimento desses odores é atualmente objeto de interesse para as indústrias da cosmética e têxtil. …
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Taint and odour phenomena in carton-board packaging systems
… The aldehydes, in particular, have very low odour and taste detection thresholds, needing to be present only in very small amounts in a packaging material to cause a taint problem. Typically, taints associated with these compounds are described as 'rancid', 'pungent', 'soapy' and 'green'. …
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Effective management solutions for biogenic odour in drinking water
Biogenic taste and odour in drinking water has become a global concern for water utilities, as eutrophication and climate change are increasing the likelihood of algal blooms and other microbial events in waterbodies. Unpleasant taste and odour perceived by consumers may result in complaints and …
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The role of preen oil and body odour in birds
… Preen oil is an important source of avian body odour and may have perfuming (or odour-related) roles, in addition to other roles like plumage maintenance and waterproofing. In this thesis, I explored the odour-based roles of preen oil, notably olfactory crypsis against predators and olfactory …
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Sensorial characteristics of odour active compounds from raw natural rubber
… from rubber materials and processing can cause odour nuisance impacts in the surrounding community, resulting in industrial closure due to public complaints. This research aims to improve our understanding on odorants behaviour across different variabilities of rubber including clonal, seasonal …
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Odour pollution problems within the district of the Wrekin council
… treatise on the full range of options available. Odour Pollution is not yet a well organised discipline and might be considered esoteric as it is necessary to incorporate elements of science and the humanities. It has been necessary to range widely across a number of aspects of the subject so that …
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Food odour preference behaviour in three Australian Pteropus species (Chiroptera: Pteropodidae)
… and P. alecto, for a variety of plant-derived odours. Methodologies were devised for investigating odour preference behaviour, involving equipment design, development of new applications for existing statistical techniques for the analysis of preference data, and analysis of odorous headspace …
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Food odour preference behaviour in three Australian Pteropus species (Chiroptera: Pteropodidae)
… and P. alecto, for a variety of plant-derived odours. Methodologies were devised for investigating odour preference behaviour, involving equipment design, development of new applications for existing statistical techniques for the analysis of preference data, and analysis of odorous headspace …
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Odour signals contain multi-modal information in the banded mongoose (Mungos mungo).
… thesis will focus on the mechanistic role of odour signals: what information they contain and how they may facilitate reproductive decision-making in the banded mongoose (Mungos mungo). I use a wild but habituated population to conduct experimental odour presentations showing these mammals are …
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Monitoring and modelling diurnal and seasonal odour and gas emission profiles for swine grower/finisher rooms
To address odour and gas problems generated by livestock facilities, air dispersion models have been used to determine reasonable science-based setback distances between the livestock operations and the neighbouring residences. However, none of the existing models consider diurnal, seasonal and …
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Effectof feed rations on livestock performance and impact of effective microorganisms on litter odour and other gases emissions.
… this production but not without high waste and odour emission which may be hazardous to animals, workers and the surrounding community members. Therefore, the aim of this study was to evaluate the effect of feed rations on livestock (cattle and swine) performance and the impact of effective …
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Design and analysis of a biometric access control system using an electronic olfactory device to identify human odour characteristics
… investigated for the detection of unique human odour characteristics. The detection of these unique odours was applied to the field of biometrics for access control, where a human's unique characteristics were used to authenticate a user of an access control system. An electronic odour sensing …
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Analysis of the volatile organic compounds produced by the decomposition of pig carcasses and human remains
… organic compounds (VOCs) responsible for the odour of decomposition. Human remains detection (HRD) canines utilize this odour signature to locate human remains during police investigations and recovery missions in the event of a mass disaster. Currently, it is unknown which compounds or …
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The role of smell in urban design
… upon experience and perception. However odour has special characteristics, retained in memory longer than visual images, and can transport people back through space and time through recollection and association. As a result, it has an important role to play in urban place experience. Few …
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Elucidation of odour-potent compounds and sensory profiles of Vidal blanc and Riesling icewines from the Niagara Peninsula : effect of harvest date and crop level
… level (CL). The objectives were: 1) to identify odour-active compounds using gas chromatographic and sensory analysis; 2) to determine the effect of CL and HD on these compounds; 3) to determine the icewine sensory profiles; 4) to correlate analytical and sensory results for an overall icewine …
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The Role of olfactory cues and their effects on food choice and acceptability
… to investigate: the effects of exposure to food odours on hunger perception; the effects of exposure to food odours with both high and low hedonic ratings on food choice, consumption and acceptability; and the application of odour exposure in a restaurant environment. Results from these studies …
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Predicting hydrocarbon nuisance odours from petroleum storage tank emissions
… hydrocarbon emissions that may lead to nuisance odour complaints, specifically in Alberta’s Peace River Oil Sands areas. These emissions were calculated from monthly gas production flow rates into the closest heavy-oil production systems to the odour complaint locations. The distribution of odour …
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