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 36 for “"fragrance"”.
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Geographies of Knowledge in the International Fragrance Industry
This study examines the international fragrance industry according to the practices of knowing and repositories and spatialities of knowledge. It is based on qualitative data from research interviews with industry experts in New York, USA, and Paris, France that were conducted between 2006 and …
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Rational design of microparticles for enhanced fragrance delivery
The effective delivery of fragrances in consumer products is a challenging problem. For example, fragrances in commercial laundry detergents or fabric softeners may not adsorb efficiently onto clothes during the vigorous washing process. In addition, fragrances consist of volatile ingredients that …
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Application of an Ionic Liquid Column to the Analysis of Flavor and Fragrance Ingredients
… columns pose challenges for flavor and fragrance analysis particularly in regards to thermal instability at high temperatures, degradation when exposed to water, unchanging selectivity, and relatively short shelf lives. Recently, capillary columns using ionic liquids as stationary phases …
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The Role of Product Launch Strategy in the Creation of Sales Momentum : The Case of the Fragrance Industry
… impact on the creation of sales momentum in the fragrance industry are analysed. A context specific model for product launch effectiveness is an initial contribution. Secondly, this study examines product launch activities through the dramaturgical lens. Primary qualitative data collected through …
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Contact allergy to fragrances with a focus on oak moss absolute
The exposure to fragrances is widespread and contact allergy to fragrance substances affects 1–4% of the general population. Many fragrance substances are volatile and it can therefore be suspected that they may evaporate from petrolatum patch test preparations applied in test chambers. In the …
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Fuzzy Expert Systems: A More Human-Based Approach for Sensorial Evaluation of Coffee-Bean Attributes to Derive Quality Scoring
… measurement of the coffee's quality related to fragrance, taste, and appearance which are expressed with a final numerical score. When cupping, the expert judge writes down the individual components' scores (fragrance, aftertaste, acidity, body, etc.) and ranks their intensities for reference. …
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The Role of Attractants and Feeding Stimulants in The Selection of Cucurbita Flowers by Diabroticite Beetles, (Coleoptera: Chrysomelidae)
The floral fragrance of the male blossoms of Cucurbita maxima was analyzed chemically to determine the presence of olfactory stimulants for diabroticite beetles. While the mixture contained at least 40 components only one, indole, produced a substantial response in an electroantennogram bioassay. …
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Modular pathway engineering of microbial fatty acid metabolism for the synthesis of branched acids, alcohols, and alkanes
… interesting targets for both flavor and fragrance compounds and as liquid fuel components. Here we report the engineering of microbial fatty acid synthesis to provide both CoA-dependent and fatty acid synthase platforms for previously undescribed routes to medium-chain length, branched …
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Investigation of the activity and selectivity of the MoO3/AI2O3 catalyst and the structural investigation using in-situ raman
… olefins which are useful intermediates in the fragrance, agricultural and many other specialty chemical industries. Supported molybdenum on alumina is an active heterogeneous catalyst for the metathesis of olefins. Its activity, as a function of time, passes a maximum. It is known that the …
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OCA : a device interconnection platform for context-aware transformable environments
… configuration, lighting, transparency, audio, fragrance, health systems, etc. Using machine learning, the system will correlate the user's preferences to those of others who have exhibited similar patterns of behavior in order to predict appropriate settings for novel situations. Overall, the …
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A house in Blacksburg
… the wild flowers as the breeze carries their fragrance across the path through the windows on either side. In the summer. one hears the birds play among the long stems of the flowers. In the fall, the dry stalks brush quietly against each other in the wind. The path to the studio makes direct …
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Chemical characterisation of the volatile constituents of essential oil from Commiphora Wildii (Omumbiri) resin
… produced from mature resin has a more desirable fragrance. An interest arose in what the differences in the chemical composition between oil produced from freshly exuded and mature resin may be. In this study the chemical characterisation of the volatile constituents of the essential oil produced …
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Investigation on the thermal stability of technical and cosmetic emulsions
… for the stability studies, the influence of fragrance addition, as well as of storage at high and low temperatures and of time of storage on unperfumed samples is investigated. Cyclic temperature programmes with different heating rates and constant cooling rate were performed and the kinetic …
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Art in the mouth: a critical evaluation of the chemical senses in contemporary art
… philosophy, food studies and flavour and fragrance chemistry. The contributions of this research are: assertions derived from data and expert opinions from within these fields; curated events which provide examples and discourse for critical consideration; and the proposal of a new …
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High-throughput analysis of emerging and historical pollutants in biological matrices.
… Galaxolide and tonalide, both polycyclic musk fragrance materials, in German fish tissues were ~19 and ~28× lower, respectively, as compared to similar nationwide PPCP study in the United States. Similarly, a high-throughput ePLE method was developed for polychlorodibenzo-p-dioxins/furans …
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Vergleichende Untersuchung zu Lebensgewohnheiten und Lebensumfeld von Patienten mit selbstberichteter Multipler Chemikaliensensitivität, Duftstoffallergien oder Polyposis nasi
… triggers of multiple chemical sensitivity (MCS), fragrance allergies (FA) and polyposis nasi (PN). Besides other organ systems, a joint effect organ of MCS, FA and PN is the respiratory tract. Therefore, aim of the present study was to characterize and compare living conditions and living factors …
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Understanding methods for internal and external preference mapping and clustering in sensory analysis
… This research used data from paint, milk and fragrance studies, representing complexity from lesser to higher. The techniques used are principal component analysis, multidimensional preference map (MDPREF), modified preference map (PREFMAP), canonical variate analysis, generalized procrustes …
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Exploring hetero-atom derivatization in maltols and flavonols : the effect on reactivity of flavonol dioxygenation.
… as well as in the cosmetics industry as a fragrance material. Maltol acts as a bidentate ligand and several divalent maltolate complexes have found uses in the biomedical field, such as iron mimetics, insulin mimetics, contrasting agents, etc. Thio-containing derivatives have been …
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New Methods for Measuring Spatial, Temporal and Chemical Distributions of Volatile Organic Compounds
… chemical composition of commercially available fragrance mixtures and modeled their emissions' impact on oxidant reactivity. It was observed that terpenes, despite their low mole fractions in the mixtures, represent the vast majority of emitted reactivity and are quantitatively evolved from the …
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