Dissertations / Theses on the topic 'Whiskey'
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Glabasnia, Arne. "Molekulare und sensorische Untersuchungen zu geschmacksgebenden Verbindungen in Whiskey sowie von verarbeitungsbedingt gebildeten Ellagtannin-Transformationsprodukten /." Münster : Schüling, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=2917149&prov=M&dok_var=1&dok_ext=htm.
Full textZweizig, Suzanne M. "Bang, whiskey, roost." [Gainesville, Fla.]: University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0000837.
Full textMacNamara, Kevin. "Flavour components of whiskey." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52849.
Full textENGLISH ABSTRACT: Aged distilled spirits such as whiskey are complex mixtures of flavour compounds in an ethanol-water matrix. The flavour compounds involved can have widely different volatility and relative amounts. Many of the organoleptic properties that make whiskey suitable for commercial sale have their origin in reactions occurring during the ageing process in oak wood barrels. To investigate the complex changes that take place during spirit ageing a preparative fractional vacuum distillation process was developed. Both high and low volatility compounds could be individually isolated as fractions and free from both the ethanol matrix and the fermentation fusel alcohols. This allowed a range of sensory and analytical procedures to be conducted on these fractions, in particular to investigate changes occurring during ageing. Gas chromatographic (GC) analysis of the low volatility fraction is complicated by the fact that both the compounds and their ethanol matrix have very similar chromatographic behaviour when separated simultaneously on standard chromatographic phases. Compound and matrix co-elution becomes a major problem and conditions for mass spectrometric (MS) investigation are disadvantageous. A two-dimensional GC configuration using dissimilar chromatographic phases was configured to overcome these limitations. Using this approach 27 compounds were separated and identified. Headspace injection was used to increase detection sensitivity. Changes with ageing for seven compounds present at very low levels were quantified. In addition changes in the most abundant compounds were quantified by standard split injection, and changes in trace level sulfur compounds by headspace injection with sulfur chemiluminescent detection (SCD). Increases of the concentrations of pleasant fruity ethyl esters and acetates were established. Volatile sulfides with generally objectionable aroma showed concomitant major decreases. Appropriate techniques could also be applied to the low volatility compounds recovered from the whiskey water fraction. High temperature GC-MS analysis of an extract of the water fraction allowed the identification of 30 compounds. Three phenolic esters were identified in whiskey for the first time. These compounds were synthesised and shown to be contributory to desirable ageing flavour. Increases in concentrations of 16 oak derived compounds during alO year ageing period were established. Several compounds increased significantly over this time period. Ratios of aromatic phenolic aldehydes, and changes in these ratios during ageing, were unique to the type of barrel used in these experiments. This suggests that the final sensory properties of aged whiskey may be more dependent on wood parameters than previously thought. Preparative reverse phase High Pressure Liquid Chromatography (HPLC) with an ethanol water gradient was used to further fractionate an extract of the low volatility compounds. Subsequent analysis and sensory testing allowed a group separation of compounds with each group contributing characteristic attributes to the total flavour. One group contained the three new phenolic esters together with a number of other unidentified compounds. This group was found to be important for desirable ageing flavour that seems to develop slowly with time. Further studies in this area to understand the individual and synergistic contributions of the many facets of ageing chemistry will have important commercial implications.
AFRIKAANSE OPSOMMING: Verouderde spiritus soos Whiskey is 'n komplekse mengsel van geurstowwe in 'n etanolwater oplossing. Die vlugtigheid van die geurstowwe asook die konsentrasies waarin hul aanwesig is, varieer aansienlik. Verskeie van die sintuiglike eienskappe wat kommersiële waarde aan whiskey verleen, het huloorsprong in reaksies wat tydens die verouderingsproses in eikehoutvate plaasvind. Ten einde die ingewikkelde veranderinge wat tydens die veroudering van spiritus plaasvind, te ondersoek, is 'n preparatiewe fraksionele vakuumdistillasieproses ontwikkel. Hoogs vlugtige en minder vlugtige verbindings kon geskei word in afsonderlike fraksies wat vry was van etanol en fuselalkohole. Dit het die sintuiglike en fisies-chemiese analises van die fraksies moontlik gemaak, veralom die veranderings wat tydens veroudering plaasvind, te ondersoek. Gaschromatografiese (GC) analise van die fraksie met 'n lae vlugtigheid word gekompliseer deur die feit dat hierdie komponente en die etanol waarin dit opgelos is soortgelyke chromatografiese eienskappe toon wanneer hul gelyktydig op standaard gaschromatografie fases geskei word. Die gelyktydige eluering van dié komponente en etanol waarin hul opgelos is, skep 'n probleem wat nadelig vir massaspektrometriese (MS) analise is. Die beperkings is oorkom deur die gebruik van tweedimensionele GC en stasionêre fases met uiteenlopende eienskappe. Op dié wyse is 27 verbindings geskei en geïdentifiseer. Die veranderinge in konsentrasies tydens veroudering is vir sewe verbindings gekwantifiseer. Veranderinge in die konsentrasies van die verbindings teenwoordig in die hoogste konsentrasies is gekwantifiseer deur split-inspuitings, terwyl veranderinge in die spoorkonsentrasies van vlugtige swawelverbindings mbv dampfase-inspuitings en met swawel chemolumisensie deteksie (SCD) bepaal is. Toenames in die konsentrasies van die aangename vrugtige esters en asetate is bepaal. Vlugtige sulfiede met meesalonaanvaarbare aromas toon gelyktydige groot afnames. Geskikte tegnieke is ook gebruik vir die herwinning van minder vlugtige verbindings met die waterfase van whiskey. Hoë temperatuur GC-MS analises van 'n ekstrak van die waterfase het die identifikasie van 30 komponente moontlik gemaak. Drie fenoliese esters is vir die eerste keer in whiskey gevind. Hierdie verbindings is gesintetiseer en hul bydrae tot die gewenste verouderingsgeur is sintuiglik bevestig. Toenames in die konsentrasies van 16 eikehoutverwante verbindings gedurende 'n verouderingsperiode van 10 jaar is bepaal. 'n Betekenisvolle toename het voorgekom in die konsentrasies van verskeie van hierdie whiskey verbindings. Die verhoudings van aromatiese fenoliese aldehiede en die verandering in die verhoudings tydens veroudering was kenmerkend van die tipe eikehoutvat wat gebruik is. Dié bevinding dui daarop dat die fenole sintuiglike eienskappe van verouderde whiskey meer afhanklik mag wees van eikehout parameters as wat voorheen algemeen aanvaarbaar is. Preparatiewe omgekeerde fase hoëdrukvloeistofchromatografie met etanol/water as 'n gradient elueermiddel is gebruik om 'n ekstrak van die minder vlugtige verbindings verder te fraksioneer. Verdere GC-, MS- en sintuiglike analise het die skeiding van groepe van verbindings waarvan elk kenmerkende bydraes tot die totale geur lewer, moontlik gemaak. Een groep het drie nuut geïdentifiseerde fenoliese esters, tesame met 'n aantal ongeïdentifiseerde verbindings, bevat. Daar is vasgestel dat hierdie groep 'n belangrike bydrae maak tot die gewenste geur wat klaarblyklik stadig tydens veroudering ontwikkel. Verdere ondersoeke in hierdie verband om die individuele en sinergistiese bydraes van verskeie fasette van die chemie van veroudering te verstaan, kan belangrike kommersiële implikasies hê.
La, Grange-Nel Karin. "Characterisation and improvement of whiskey yeast." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53327.
Full textENGLISH ABSTRACT: Scotch whiskey is of two main types, namely Scotch malt whiskey, made from malted barley alone, or Scotch grain whiskey, made from cereals, such as wheat or maize, together with malted barley. In both processes, the enzymes from the barley are responsible for starch conversion and should always be derived entirely from the malted barley. No exogenous enzymes are allowed to be added to any mashing. The enzymes involved in the conversion process to fermentable sugars, are the aand p-amylases, limit dextrinase and p-glucosidase. Maize, on the other hand, contains no enzyme activity, therefore enzymes need to be added when producing whiskey from maize alone. In other whiskey-producing countries where maize is freely available and cheaper than barley, the use of exogenous enzymes are allowed in the mashing process and is crucial for the formation of fermentable sugars from complex carbohydrates. The cost of the enzymes, however, can push the production cost of whiskey to higher levels. Saccharomyces cerevisiae does not have any amylolytic activity, but is an excellent fermenter and produces favourable organoleptic notes, which makes it very suitable for producing potable spirit. Efforts have been made to genetically improve industrial strains, relying on classical genetic techniques followed by the selection of broad traits, such as ethanol tolerance, absence of off-flavours and carbohydrate/starch utilisation. No strain has thus far been selected for total starch degradation during the fermentation of whiskey mash. Over the last decade, considerable progress has been made in the development of genetically improved strains for the distilling, wine, brewing and baking industries. The expression of heterologous genes introduced a new dimension in approaches to the genetic improvement of industrial strains. It would therefore be cost-effective to use a yeast strain that can produce active and sufficient enzymes to ferment raw starch efficiently to alcohol without lowering the quality of the end product. No such strain has been developed to date, but the continuous improvement of starch-utilising strains has made this goal more achievable. Two a-amylase genes, namely LKA 1 and LKA2, were previously isolated from Lipomyces kanonenkoae. In this study, we selected 4 strains on the basis of criteria that are important for whiskey-specific strains. The selected strains were transformed with LKA 1, as well as with a combination of LKA 1 and LKA2 genes. The wine yeast VIN13 was included in the transformation of LKA1 and LKA2 because of its rapid fermentation rate. The genes were integrated into the genomes of the yeast strains and were stable after many generations. Assays showed that a significant increase in enzyme activity was induced in the whiskey strains, compared to the untransformed strains. The strains also showed good fermentation ability in whiskey fermentations, although optimum alcohol production was still not achieved.
AFRIKAANSE OPSOMMING: Skotse whiskey bestaan uit 2 tipes, nl. mout whiskey, gemaak slegs van mout d.w.s. gars wat die mout proses ondergaan het, en graan whiskey wat gemaak word van gewasse soos mielies of koring, waarby mout gevoeg word. Die ensieme afkomstig van die mout is verantwoordelik vir die omsetting van stysel na fermenteerbare suikers en geen eksogene ensieme mag by die gars- of graanmengsel gevoeg word nie. Die ensieme wat betrokke is by die omsetting van stysel, is die a- en ~- arnitases, limiet dekstrinase en ~-glukosidase. Mielies bevat geen ensiemaktiwiteit nie, dus moet ensieme by die proses gevoeg word indien slegs mielies vir die vervaardiging van whiskey gebruik word. In whiskey produserende lande waar mielies vryelik beskikbaar is en goedkoper is as gars, word eksogene ensieme by die graanmengsel gevoeg vir die vrystelling van fermenteerbare suikers vanaf komplekse koolhidrate. Die hoë koste van die ensieme kan egter die produksiekoste van whiskey verhoog. Saccharomyces cerevisiae besit geen amilolitiese aktiwiteit nie, maar is 'n uitstekende fermenteerder en produseer gewensde organoleptiese geure. Om hierdie redes is S. cerevisiae baie geskik vir die produksie van drinkbare etanol. Navorsingspogings om industriële rasse geneties m.b.v. klassieke genetiese metodes te verbeter, kom wydverspreid in die literatuur voor. Dit sluit in die seleksie van rasse met 'n verskeidenheid van eienskappe soos etanol toleransie, die afwesigheid van afgeur produksie en koolhidraat/stysel benutting. Geen ras is egter tot op hede geselekteer vir totale stysel afbraak gedurende fermentasie nie. Groot vordering is gedurende die laaste dekade gemaak in die ontwikkeling van genetiese verbeterde rasse vir die wyn- stokery- en brouers industrieë. Die uitdruk van heterogene gene in gisrasse gee 'n nuwe dimensie aan die genetiese verbetering van industriële rasse. Die gebruik van 'n gisras wat aktiewe en genoegsame ensieme produseer om rou stysel te fermenteer, sonder om die kwalitiet van die eindproduk nadelig te beïnvloed, kan die produksiekoste van whiskey aansienlik verminder. Geen gisras met hierdie eienskap is tot op hede ontwikkel nie, maar die voortdurende verbetering van rasse om stysel af te breek maak hierdie doel meer bereikbaar. Twee a-amilase gene, nl. LKA 1 en LKA2 is voorheen uit Lipomyces kononenkoae geïsoleer. In hierdie studie is 4 gisrasse geselekteer op grond van die kriteria wat nodig is vir whiskey giste. Die geselekteerde rasse is getransformeer met LKA 1 sowel as 'n kombinasie van LKA 1 en LKA2 gene. Die wyngis VIN13 is ingesluit by die transformasie met die LKA1 en LKA2 gene, omrede VIN13 bekend is as 'n vinnige fermenteerder. Die gene is geïntegreer in die genoom van die verskillende gisrasse en is stabiel na vele generasies. Die getransformeerde rasse het 'n betekenisvolle verhoging in ensiemaktiwiteit teenoor die nie-getransformeerde rasse getoon. AI die transformante het ook goeie fermentasie vermoë getoon in whiskey fermentasie proewe. Optimum alkoholproduksie is egter nie verkry nie.
Yuan, Kam-wing Kenneth. "A study of whisky market in Hong Kong /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18024956.
Full textTannerfalk, Joel. "KLASSISK RETORIK I REKLAM : en analys av reklambilder för whiskey." Thesis, Växjö University, Växjö University, Växjö University, School of Education, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-4882.
Full textI uppsatsen behandlas tre reklambilder för whiskey utifrån teorier om klassisk retorik, visuell retorik och semiotik. Hypotesen för whiskeyn och dess reklam är att avsändaren måste övertyga betraktaren om att åsidosätta en viss typ av negativa associationer som finns i samband med alkohol för att den ska få en önskad effekt.
I uppsatsen undersöks begreppen ethos, logos och pathos i samband med bildernas retoriska utgångspunkter. Här hävdas att det finns mönster eller olika strategier och tendenser i bildernas uttryck. Dessa mönster är intressanta eftersom de positionerar whiskeyn som produkt och övertygar betraktaren om hur whiskey ska uppfattas.
Retorikens utveckling beskrivs tillsammans med semiotiken och en analys presenteras i en avslutande del inspirerad av Bo Renbergs modell för retorikanalys.
Generellt framhåller författaren att reklambilderna byggs upp på ett liknande sätt eftersom de tillhör samma produktkategori. Denna kategori distanserar sig i sitt budskap från andra typer av alkohol.
DeVlieger, Dana Lauren. ""Whiskey in the Jar": History and Transformation of a Classic Irish Song." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461254655.
Full textanderson, Anna Catherine Borden. "A Study of Transition in Plantation Economy: George Washington's Whiskey Distillery, 1799." W&M ScholarWorks, 2002. https://scholarworks.wm.edu/etd/1539626357.
Full textMosedale, Jonathan R. "Variation of oak wood properties influencing the maturation of whisky." Thesis, University of Oxford, 1994. http://ora.ox.ac.uk/objects/uuid:b0383556-7c95-48d7-902b-ef4a9f0732dc.
Full textWongtee, Rattanawadee. "The advertising campaign for the Diamond brand, a Thai whisky, focusing on three provinces of Northern Thailand." CSUSB ScholarWorks, 2003. https://scholarworks.lib.csusb.edu/etd-project/2349.
Full textGlabasnia, Arne. "Molekulare und sensorische Untersuchungen zu geschmacksgebenden Verbindungen in Whiskey sowie von verarbeitungsbedingt gebildeten Ellagtannin-Transformationsprodukten." Münster Schüling, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2917149&prov=M&dok_var=1&dok_ext=htm.
Full textFenton, Connor. "’Wretched Petitioners’: Jamaican Maroon’s Petitions/ Catiline and Caesar in Early American Insults and the Whiskey Rebellion." W&M ScholarWorks, 2017. https://scholarworks.wm.edu/etd/1516639575.
Full textYuan, Kam-wing Kenneth, and 袁錦榮. "A study of whisky market in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31267816.
Full textPapoušek, Jiří. "Analýza image produktu Jack Daniel´s Tennessee Fire na českém trhu." Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-261753.
Full textTumberg, Timothy Andrew. "Digging Up Whiskey Row: An Archaeological and Historical Investigation of Industrial Capitalism on the North Shore of Lake Superior." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/247273.
Full textHauck, Kathryn. "Prey and habitat availability in the Whiskey Jack Forest (Kenora Management Unit, Ontario), to support a cougar (Puma concolor) population." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq60846.pdf.
Full textCalmein, André. "Whisky écossais : histoire et économie : terminologie (anglais-français des whiskies)." Lille 3, 1994. http://www.theses.fr/1994LIL30008.
Full textThis thesis aims at defining the specific nature of scotch whisky, the first part attempts to place the product in its regional, national and international environment. Although whisky did not originale in scotland, the host nation has offered an environment ideally suited to its development. The history of the product often follows that of scotland very closely, particularly regarding the antagonism to england. The industrial revolution brought about considerable changes with a shift of the nerve centre from the highlands to the lowlands. The twentieth century was to confirm and even amplify the trend towards internationalisation : the decision-making centres are now in the city of london and overseas. The industry is at present made up of multinationals, integrating all aspects of the trade, along with small or medium-sized family concerns. It makes a significant contribution to the british economy as 85% of the production is exported. To overcome the numerous obstacles to its expansion, its policy has been one of intense lobbying, involving the general public, the media and the political scene. Both the growth and the strategy of the industry have been affected by britain's european union membership. The second part is a study of the terminology (englishfrench) of whiskies, illustrated by extracts from books and their translations, providing an insight into the subject matter. It includes tje study of raw materials, techniques , processes equipment
Tomé, Brunno Conrado Bertolucci. "Ensaios colorimétricos para detecção de etanol em amostras de uísque utilizando dispositivos poliméricos." Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/8441.
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This report describes the fabrication of devices in poly(dimethyl)siloxane (PDMS) for colorimetric determination of ethanol in whisky. The devices were fabricated via 3D printing and used to perform colorimetric assays with image detection using a scanner. The PDMS devices were evaluated comparing the results obtained from the water aliquot scans by extracting the pixel intensities in the RGB channel, where there was no statistical difference for a confidence level of 0.05. The iron complexation reaction with 1,10-phenanthroline was also evaluated by comparing the results of two different devices. Ferrous ammonium sulphate solutions were used at concentrations of 0,1 to 10 mg.L -1 , where correlation curves were obtained from the pixels intensities extracted in the yellow channel. The obtained equations were used to estimate the concentration of a known iron solution of 8 mg.L -1 , obtaining a difference of 0.74% between the results of both devices. The oxidation reaction of ethanol with potassium dichromate was used to determine ethanol in samples of seized whiskeys by Federal Police. It was possible to determine ethanol in the range of 0% to 60% (v/v), using a gray color channel for the concentration range of 0% to 20% (v/v) with R 2 = 0.993, with a detection limit of 0,86% and quantification limit of 1.44% and the yellow color channel for the concentration range of 20% to 60% (v/v) with R 2 = 0.998. It was possible to determine the ethanol content in 66 samples of seized whiskeys. Where 53 samples were discriminated as falsified and 13 samples were not discriminated from original samples based on the ethanol content.
O presente trabalho descreve a fabricação de dispositivos em poli(dimetil)siloxano (PDMS) para determinação colorimétrica de etanol em uísques. Os dispositivos foram fabricados via impressão 3D e utilizados para a realização de ensaios colorimétricos com detecção por imagem a partir de um scanner de mesa. Os dispositivos de PDMS foram avaliados comparando os resultados obtidos de digitalizações de alíquotas de água extraindo as intensidades de pixel no canal RGB,onde não houve diferença estatística para um nível de confiança de 0,05. Foi avaliado também a reação de complexação do ferro com a 1,10 fenantrolina comparando os resultados de dois dispositivos diferentes. Foram utilizadas soluções sulfato ferroso amoniacal nas concentrações de 0,1 até 10 mg.L -1 , onde foram obtidas curvas de correlação para as intensidades de pixels extraídas no canal amarelo. As equações obtidas foram utilizadas para estimar a concentração de uma solução conhecida de ferro de 8 mg.L -1 , obtendo-se uma diferença de 0,74% entre os resultados dos dois dispositivos. A reação de oxidação de etanol com dicromato de potássio foi utilizada para determinar etanol em amostras de uísques apreendidos pela Polícia Federal. Foi possível determinar etanol na faixa de 0% a 60%(v/v) utilizando canal de cor cinza para a faixa de concentração de 0% a 20%(v/v) com R 2 =0,993, com um limite de detecção 0,86% de e limite de quantificação de 1,44% e o canal de cor amarelo para a faixa de concentração de 20% a 60%(v/v) com R 2 =0,998. Foi possível determinar o teor de etanol em 66 amostras de uísques apreendidos. Onde 53 amostras foram discriminadas como falsificadas, com 13 sendo classificadas como autênticas com base no teor de etanol.
Borra, Venkata Shesha Vamsi. "Whiskers: The Role of Electric Fields in the Formation Mechanism and Methods for Whisker Growth Mitigation." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1513381893591481.
Full textSara, Frisell Eriksson, and Lilja Louise. "’Att ge sprutor till en narkoman är som att ge en flaska whiskey till en alkoholist’ : En kritisk diskursanalys av den svenska politiska debatten gällande sprututbytesverksamheten under perioden 1995-2016." Thesis, Uppsala universitet, Sociologiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-298220.
Full textWojnar, Magdalena. "“The bottle of whiskey – a second one – was now in constant demand by all present” : Alcohol Consumption as Cultural Capital and Part of Habitus in F. Scott Fitzgerald’s The Great Gatsby." Thesis, Linnéuniversitetet, Institutionen för språk (SPR), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-101165.
Full textKillefer, Morgan. "Whisker Growth Induced by Gamma Radiation on Glass Coated with Sn Thin Films." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1501783073245894.
Full textAndrýsek, Michal. "Příprava vysoce dopovaných ZnO nanodrátů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382256.
Full textSturgeon, Sinéad. "Law & literature in the writings of Maria Edgeworth, William Carleton, and James Clarence Mangan." Thesis, University of Oxford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.711601.
Full textFang, Tong. "Tin whisker risk assessment studies." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/3079.
Full textThesis research directed by: Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Struyk-Bonn, Christina. "Whisper." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/1150.
Full textJonsson, Daniel, and Victor Ericsson. "Livscykelanalys av en flaska whisky." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-15484.
Full textThe goal of this thesis is to, in collaboration with Mackmyra Svensk Whisky, investigate the environmental impact of their whisky. In addition to this it is also investigated which sub-processes that cause the most environmental impact, and how the environmental impact can be reduced. Generally, large amounts of resources are used in the food industry, which can cause great impact on the environment. In this thesis the methodology Life Cycle Assessment is used to identify and estimate the environmental impact. An important step in the beginning of the LCA is to select one or more functional units for which the environmental impact is calculated. This study has two functional units. The first is a 70 cl bottle containing an average of the whisky that Mackmyra Svensk Whisky delivers to Systembolaget. Mackmyra also sells whole 30-liter whisky barrels to individuals, and the second functional unit is a bottle of 50 cl containing an average of this whiskey. The system under study begins with the production of raw materials such as barley and stops when the whisky is delivered to Systembolaget. Information about emissions and energy use was then collected. The data is primarily collected from companies that Mackmyra purchase raw materials and other resources from, if they had information available. When this was not possible, data from similar operations, databases or ultimately reasonable estimates were used. The environmental impact categories examined are global warming, acidification and eutrophication, and the results varies between these categories. Generally speaking, however, the production of barley, the manufacture of glass bottles and transports dominate the environmental impact. Mackmyra uses two kinds of malt, of which one is self-produced and makes use of a diesel-powered heater for drying. Compared with the purchased malt (which uses district heating primarily from waste and biomass), the environmental impact is significantly higher. Since the Mackmyra malt is used in small amounts per functional unit it does, however, not cause huge environmental impact. A study has been made to see what the effect would be if the diesel heater was replaced with heaters powered by electricity, which showed a reduction of the environmental impact. No comparison has been made of the difference in cost between the heat fans.
Cabrera-Anaya, Juan Manuel. "Growth of zinc whiskers." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENI039/document.
Full textWhiskers, conductive metallic filaments that grow from metallic surfaces, are a very importantissue for reliability of electronic components. Through recent years, there has been a renewedindustrial interest on whisker growth, mainly due to the miniaturization of electronic devices andthe environmental regulations forbidding the use of lead.While most of the research has been focused on tin whiskers, there is still little reference tozinc whiskers. Electroplated zinc coatings are actually used as anticorrosive protection for lowalloy steels in diverse industries such as automotive, aerospace or energy, as well as for supportstructures or raised-floor tiles in computer data centers. In order to mitigate, prevent and predictthe failures caused by the zinc whiskers, the mechanisms of growth must be understood.By accelerated storage tests and Scanning Electron Microscopy (SEM) observation, kinetics ofgrowth of zinc whiskers was studied on low alloy chromed electroplated carbon steel.Quantitative characterization of both whisker and hillocks (density, volume and growth rate) wasrelated with the parameters temperature, electroplating electrolyte, presence of chrome, steelsubstrate thickness, zinc coating thickness and residual stress, in order to understand themechanisms of growth.Additionally, both microstructure and crystallography of zinc coating, whisker roots and actualwhiskers were studied by Electron Backscatter Diffraction (EBSD), Transmission ElectronMicroscopy (TEM), Energy-dispersive X-ray spectroscopy (EDX) and local grain orientationwith ASTAR setup, using Focused Ion Beam (FIB) for samples preparation. Recrystallization aswell as dislocations were observed in both whiskers and hillocks; no intermetallic compoundswere seen in neither electroplated nor whiskers.It is found that compressive residual stress relaxation and whiskers growth are two differentbut strongly interconnected phenomena both thermally activated, an each of them follows adifferent mechanism; apparent activation energies of the two phenomena are calculated, andgrain boundary diffusion is established as the main diffusion mechanism for whiskers growth.Whiskers growth kinetics, both analytical and phenomenological is proposed. Goodestimation of whiskers growth and whiskers growth rate at temperatures close to operationconditions is obtained when compared with experimental data
Whiskers, filamentos metálicos que crecen en superficies metálicas, son un problema muyimportante para la fiabilidad de componentes electrónicos. Durante los últimos años, ha habidoun renovado interés industrial en el crecimiento de whiskers, debido principalmente a laminiaturización de dispositivos electrónicos y a las regulaciones ambientales que prohíben lautilización de plomo.La mayoría de las investigaciones se concentran en los whiskers de estaño y hay todavía pocostrabajos sobre los whiskers de zinc. Los recubrimientos de zinc electrodepositado son utilizadoscomo protección anticorrosión para los aceros de baja aleación en diversas industrias, comoautomotriz, aeronáutica o energética, así como en la estructuras de soporte o tejas de techosfalsos en los centros de datos informáticos. Para atenuar, prevenir y predecir las fallas causadaspor los whiskers de zinc, los mecanismos de crecimiento deben ser comprendidos.Gracias a experimentos de almacenamiento de muestras y a observaciones por microscopíaelectrónica de barrido (SEM), la cinética de crecimiento de whiskers de zinc ha sido estudiada enaceros de baja aleación recubiertos de zinc y cromados. Para comprender los mecanismos decrecimiento de whiskers de zinc, la caracterización cuantitativa de whiskers y de protuberancias(densidad, volumen y velocidad de crecimiento) fue relacionada con los parámetros siguientes:temperatura, electrolito usado en la electrodeposición de zinc, cromado, espesor del substrato deacero, espesor del recubrimiento de zinc al igual que el estrés residual.Adicionalmente, microestructura y cristalografía del recubrimiento de zinc, de raíces dewhiskers así como de los propios whiskers fueron estudiadas por medio de la difracción deelectrones por retrodispersión (EBSD), microscopía electrónica de transmisión (TEM),microanálisis por rayos X (EDX) y el dispositivo ASTAR para la orientación local de granos; lapreparación de muestras fue realizada con la ayuda de un haz de iones localizados (FIB). Larecristalización así como las dislocaciones en whiskers y protuberancias fueron observadas;ningún compuesto intermetálico ha sido observado en los recubrimientos ni en los whiskers.Se determinó que la relajación del estrés residual de compresión y el crecimiento de whiskersson dos fenómenos diferentes pero fuertemente interconectados y térmicamente activados. Cadauno de ellos sigue un mecanismo diferente; las energías de activación aparentes de los dosfenómenos han sido establecidas, y la difusión por bordes de grano es propuesta como elprincipal mecanismo de difusión para el crecimiento de whiskers.Cinéticas de crecimiento de whiskers, a la vez analíticas y fenomenológicas son propuestas.Una buena estimación del crecimiento de whiskers y su velocidad de crecimiento a temperaturascercanas a las condiciones de operación es obtenida por comparación con los datosexperimentales
Rodekohr, Chad L. Bozack Michael J. Flowers George T. "Material factors influencing metallic whisker growth." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/FALL/Mechanical_Engineering/Dissertation/Rodekohr_Chad_16.pdf.
Full textMuscat, Daniel. "Silicon nitridesilicon nitride whisker-reinforced composites." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60102.
Full textIn this work Si$ sb3$N$ sb4$ whiskers have been incorporated into a Si$ sb3$N$ sb4$ matrix and densified using pressureless sintering. An isotropic distribution of whiskers in the starting powder was seen to inhibit shrinkage of the bulk material as a result of whisker bridging.
An extrusion process was developed to align the whiskers such that they do not impinge on one another. This was done using a water soluble, cellulose based plasticizer. The process was sensitive to water content and mixing. Entrapped air caused problems in the extrudate, resulting in misaligned areas in the microstructure. Relative densities of 94.5% were obtained for composites having 15% whiskers. The toughness of this material was measured to be 13.5MPa.m$ sp{1/2}$ in the direction perpendicular to the direction of extrusion.
Jadhav, Shantanu Prafull. "Neural coding during active whisker sensation." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2008. http://wwwlib.umi.com/cr/ucsd/fullcit?p3320109.
Full textTitle from first page of PDF file (viewed September 11, 2008). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.
Xu, Wenting. "Volvo's Whisper." Thesis, Umeå universitet, Designhögskolan vid Umeå universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-171723.
Full textVenner, Jason Christopher. "Whisper Shifter." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1207924961.
Full textDavies, Kyle. "Encoding models of the subcortical whisker system." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/encoding-models-of-the-subcortical-whisker-system(5c19f02a-de41-4729-813e-e227bed5a891).html.
Full textBjartmar, Hylta Sanna, and Emma Lundquist. "Pricing Single Malt Whisky : A Regression Analysis." Thesis, KTH, Matematisk statistik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189001.
Full textDenna kandidatuppsats undersöker de faktorer som påverkar priset på whisky. Multipel regressionsanalys används för att modellera förhållandet mellan de identifierade variablerna som tros påverka priset på whisky. Vidare diskuteras den optimala marknadsföringsstrategi f ̈or whiskyproducenter i regionerna Islay och Campbeltown. Analysen baseras på en Marknadsmix-analys för whisky i Skottland. Detta följs av Porters femkraftsmodell med fokus på regionerna Islay och Campeltown. Slutligen sammanfattas resultaten i en rekommendation av marknadsföringsstrategi för producenter i regionerna Islay och Campbeltown. Resultatet från regressionsanalysen visar att kovariaterna alkoholhalt och regioner har störst påverkan på priset. De små regionerna Islay och Campbeltown, med få destillerier, har en stark positiv inverkan på priset. Whisky från ospecificerade regioner i Skottland har däremot en negativ inverkan. Alkoholhalten har en positiv, icke-linjär inverkan på priset. I kandidatuppsatsen dras slutsatsen att det positiva sambandet mellan alkohol och pris ej kan förklaras av Sveriges alkoholskatt, utan att kunder är redo att betala mer för en whisky med högre alkoholhalt. Vidare konstateras att små regioner med få destillerier resulterar i ett högre pris på whisky. Whiskyns ursprung och tradition har en stor inverkan på pris och bör därför betonas i marknadsföringen.
Bampilis, Tryfon. "Greek whisky : the localization of a global commodity /." Leiden, the Netherlands : Bampilis, 2010. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=018877844&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textMebane, David Spencer. "Impedance response of alumina-silicon carbide whisker composities." Available online, Georgia Institute of Technology, 2004, 2004. http://etd.gatech.edu/theses/available/etd-11222004-113508/.
Full textHamid Garmestani, Committee Member ; Arun M. Gokhale, Committee Member ; Rosario A. Gerhardt, Committee Chair.
Fukuda, Yuki. "Experimental investigations of whisker formation on tin platings." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/3058.
Full textThesis research directed by: Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Mebane, David Spencer. "Impedance Response of Alumina-silicon Carbide Whisker Composites." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/7615.
Full textGong, Yuze. "Wear Studies on Silicon Carbide Whisker Reinforced Alumina." Thesis, KTH, Materialvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-35923.
Full textBeem, Heather Rachel. "Passive wake detection using seal whisker-inspired sensing." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/97768.
Full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 183-193).
This thesis is motivated by a series of biological experiments that display the harbor seal's extraordinary ability to track the wake of an object several seconds after it has swum by. They do so despite having auditory and visual cues blocked, pointing to use of their whiskers as sensors of minute water movements. In this work, I elucidate the basic uid mechanisms that seals may employ to accomplish this detection. Key are the unique ow-induced vibration properties resulting from the geometry of the harbor seal whisker, which is undulatory and elliptical in cross-section. First, the vortex-induced vibration (VIV) characteristics of the whisker geometry are tested. Direct force measurements and ow visualizations on a rigid whisker model undergoing a range of 1-D imposed oscillations show that the geometry passively reduces VIV (factor of > 10), despite contributions from eective added mass and damping. Next, a biomimetic whisker sensor is designed and fabricated. The rigid whisker model is mounted on a four-armed flexure, allowing it to freely vibrate in both in-line and crossflow directions. Strain gauges on the flexure measure deflections at the base. Finally, this device is tested in a simplified version of the sh wake { seal whisker interaction scenario. The whisker is towed behind an upstream cylinder with larger diameter. Whereas in open water the whisker exhibits very low vibration when its long axis is aligned with the incoming ow, once it enters the wake it oscillates with large amplitude and its frequency coincides with the Strouhal frequency of the upstream cylinder. This makes the detection of an upstream wake as well as an estimation of the size of the wake-generating body possible. A slaloming motion among the wake vortices causes the whisker to oscillate in this manner. The same mechanism has been previously observed in energy-extracting foils and trout actively swimming behind bluff cylinders in a stream.
by Heather Rachel Beem.
Ph.D.
Podešva, Lukáš. "Řezná keramika a její efektivní využití." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229214.
Full textEvans, Mathew H. "Tactile discrimination with whiskers." Thesis, University of Sheffield, 2012. http://etheses.whiterose.ac.uk/2342/.
Full textWolfe, Jason Hunter. "Resonance and texture coding in the rat whisker system." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3273477.
Full textTitle from first page of PDF file (viewed August 31, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.
Weber, Mark 1964. "Mechanical and microscopic investigation of whisker-reinforced silicone rubber." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55654.
Full textAnderson, Carlos. "INDIVIDUAL IDENTIFICATION OF POLAR BEARS BY WHISKER SPOT PATTERNS." Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3274.
Full textM.S.
Department of Biology
Sciences
Biology MS
Kambara, Hajime. "The rheological properties of aluminum borate whisker filled resins." Case Western Reserve University School of Graduate Studies / OhioLINK, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=case1057599821.
Full textOfem, Michael. "Properties of chitin whisker reinforced poly(acrylic acid) composites." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/properties-of-chitin-whisker-reinforced-polyacrylic-acid-composites(dd295cc1-3972-4544-be7d-9e80fafe5d19).html.
Full textFurusawa, Toshiya. "The formation and reactions of sulphur compounds during distillation." Thesis, Heriot-Watt University, 1996. http://hdl.handle.net/10399/1215.
Full textJameson, Robert P. M. "Processing of cereals for the production of grain whisky." Thesis, Heriot-Watt University, 2001. http://hdl.handle.net/10399/517.
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