Dissertations / Theses on the topic 'Glass trade'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 39 dissertations / theses for your research on the topic 'Glass trade.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Saitowitz, Sharma Jeanette. "19th century glass trade beads : from two Zulu royal residences." Thesis, University of Cape Town, 1990. http://hdl.handle.net/11427/26093.
Full textHopwood, Lisa Eileen. "Glass trade beads from an Elmina shipwreck more than pretty trinkets /." [Pensacola, Fla.] : University of West Florida, 2009. http://purl.fcla.edu/fcla/etd/WFE0000186.
Full textSubmitted to the Dept. of Anthropology. Title from title page of source document. Document formatted into pages; contains 250 pages. Includes bibliographical references.
Groll, M. "Thomas and Drake and the transatlantic trade in stained glass, 1900-1950." Thesis, University of York, 2016. http://etheses.whiterose.ac.uk/17480/.
Full textSpencer, Terence. "Trade unionism and socio-economic development in the Yorkshire glass industry, circa 1840-1940." Thesis, Open University, 1988. http://oro.open.ac.uk/57268/.
Full textYoung, Ginny. "A heart of glass women, work culture, and resistance in Huntington, West Virginia's glass industry /." Huntington, WV : [Marshall University Libraries], 2007. http://www.marshall.edu/etd/descript.asp?ref=760.
Full textSaitowitz, Sharma Jeanette. "Glass beads as indicators of contact and trade in Southern Africa ca. AD 900 - AD 1250." Doctoral thesis, University of Cape Town, 1996. http://hdl.handle.net/11427/19418.
Full textCrull, Donald Scott. "The economy and archaeology of European-made glass beads and manufactured goods used in first contact situations in Oregon, California and Washington." Thesis, University of Sheffield, 1998. http://etheses.whiterose.ac.uk/3460/.
Full textLeong, Julie Yeen Yeen. "Fabrication and applications of lead-silicate glass holey fibre for 1-1.5 microns : nonlinearity and dispersion trade offs." Thesis, University of Southampton, 2007. https://eprints.soton.ac.uk/50197/.
Full textTemplin, Robert B. III. "Black Glass on the Georgia Coast| The Utility of Black Glass Trade Beads in Refining Site Chronology and Detecting Color Preference at Seventeenth Century Mission Santa Catalina de Guale." Thesis, The University of Alabama, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10622913.
Full textHistorical and archaeological research has established that European glass beads are high-resolution temporal markers for colonial sites in North America. Additionally, recent studies have demonstrated that compositional analyses of certain bead types can refine the chronological resolution of these artifacts. This study contributes to this growing body of knowledge by extending these methods to drawn beads manufactured from black glass. Using X- ray fluorescence spectrometry and a sample of simple black glass trade beads (n = 940) recovered from the cemetery of Mission Santa Catalina de Guale (St. Catherines Island, Georgia), I identify diachronic patterns in the recipes that guided their manufacture during the seventeenth century. The concentrations of temporally diagnostic opacifiers (i.e., tin [Sn] and antimony [Sb]) found within beads assemblages from individual contexts are then used to refine the existing site chronology and contribute to ongoing studies of the occupation and use of the mission. I argue that the seventeenth century mission complex was built during multiple stages of construction separated by decades. Furthermore, relative dates for a number of burial contexts have been proposed, which provide insight into diachronic variation in indigenous Guale burial practices. In this study, I specifically address differences in color patterning between the newly dated burial contexts as a means of identifying and comparing the preferential consumption of five culturally salient bead colors and their relationship to indigenous identities.
Wood, Marilee. "Interconnections : Glass beads and trade in southern and eastern Africa and the Indian Ocean - 7th to 16th centuries AD." Doctoral thesis, Uppsala universitet, Afrikansk och jämförande arkeologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-162650.
Full textBasa, Kishor K. "The westerly trade of southeast Asia from c. 440 BC to c. 500 AD with special reference to glass beads." Thesis, University College London (University of London), 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283176.
Full textFenn, Thomas. "APPLICATIONS OF HEAVY ISOTOPE RESEARCH TO ARCHAEOLOGICAL PROBLEMS OF PROVENANCE AND TRADE ON CASES FROM AFRICA AND THE NEW WORLD." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/204329.
Full textHåkansson, Fredrik. "Standing up to a Multinational Giant : The Saint-Gobain World Council and the American Window Glass Workers' Strike in the American Saint Gobain Corporation in 1969." Doctoral thesis, Linnéuniversitetet, Institutionen för kulturvetenskaper, KV, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-27447.
Full textSimmons, Stephanie Catherine. "Exploring Colonization and Ethnogenesis through an Analysis of the Flaked Glass Tools of the Lower Columbia Chinookans and Fur Traders." Thesis, Portland State University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1560956.
Full textThis thesis is an historical archaeological study of how Chinookan peoples at three villages and employees of the later multicultural Village at Fort Vancouver negotiated the processes of contact and colonization. Placed in the theoretical framework of practice theory, everyday ordinary activities are studied to understand how cultural identities are created, reinforced, and changed (Lightfoot et al. 1998; Martindale 2009; Voss 2008). Additionally uneven power relationships are examined, in this case between the colonizer and the colonized, which could lead to subjugation but also resistance (Silliman 2001). In order to investigate these issues, this thesis studies how the new foreign material of vessel glass was and was not used during the everyday practice of tool production.
Archaeological studies have found that vessel glass, which has physical properties similar to obsidian, was used to create a variety of tool forms by cultures worldwide (Conte and Romero 2008). Modified glass studies (Harrison 2003; Martindale and Jurakic 2006) have demonstrated that they can contribute important new insights into how cultures negotiated colonization. In this study, modified glass tools from three contact period Chinookan sites: Cathlapotle, Meier, and Middle Village, and the later multiethnic Employee Village of Fort Vancouver were examined. Glass tool and debitage analysis based on lithic macroscopic analytical techniques was used to determine manufacturing techniques, tool types, and functions. Additionally, these data were compared to previous analyses of lithics and trade goods at the study sites.
This thesis demonstrates that Chinookans modified glass into tools, though there was variation in the degree to which glass was modified and the types of tools that were produced between sites. Some of these differences are probably related to availability, how glass was conceptualized by Native Peoples, or other unidentified causes. This study suggests that in some ways glass was just another raw material, similar to stone, that was used to create tools that mirrored the existing lithic technology. However at Cathlapotle at least, glass appears to have been relatively scarce and perhaps valued even as a status item. While at Middle Village, glass (as opposed to stone) was being used about a third of the time to produce tools.
Glass tool technology at Cathlapotle, Meier, and Middle Village was very similar to the existing stone tool technology dominated by expedient/low energy tools; however, novel new bottle abraders do appear at Middle Village. This multifaceted response reflects how some traditional lifeways continued, while at the same time new materials and technology was recontextualized in ways that made sense to Chinookan peoples.
Glass tools increase at the Fort Vancouver Employee Village rather than decrease through time. This response appears to be a type of resistance to the HBC's economic hegemony and rigid social structure. Though it is impossible to know if such resistance was consciously acted on or was just part of everyday activities that made sense in the economic climate of the time.
Overall, this thesis demonstrates how a mundane object such as vessel glass, can provide a wealth of information about how groups like the Chinookans dealt with a changing world, and how the multiethnic community at Fort Vancouver dealt with the hegemony of the HBC. Chinookan peoples and the later inhabitants of the Fort Vancouver Employee Village responded to colonization in ways that made sense to their larger cultural system. These responses led to both continuity and change across time. (Abstract shortened by UMI.)
Sofia, Pierre Niccolò. "Les perles vénitiennes dans un monde interconnecté : Étude d'un commerce global au XVIIIè siècle." Electronic Thesis or Diss., Université Côte d'Azur, 2022. http://www.theses.fr/2022COAZ2014.
Full textThrough the case study of Venetian glass beads in the 18th century, this thesis shows how the specialization in a niche product enabled a Mediterranean economic system to remain connected to the main international trade flows of the late early modern period. This thesis aims to contribute to the scientific debate which, for some years now, has been questioning the decadence of the Mediterranean in the Early modern period, and to clarify the position of Venice in the European world-economy of the 18th century.This research criss-crosses the macro-analysis of flows and the micro-analysis of agents, using Venetian (Registri dei Cinque Savi) and foreign (British Custom books, Toflit19 for French trade and the Portuguese balança do comerçio) quantitative sources and Venetian qualitative sources, mainly from the Censori, Cinque Savi alla Mercanzia, Inquisitore alle Arti, Inquisitori di Stato. The analysis tracks the chain of Venetian glass beads in the 18th century from manufacturing processes to marketing, and specify the routes, the agents and the markets involved.This thesis is divided into three parts. The first part deals with the economic context of Venice and focuses on the trade of the Venetian port and the export industry of the city in the 18th century. Through this contextualization we understand that glass beads were the fruit of a rich manufacturing and commercial pole that was still connected to the Euro-Mediterranean world, and we can better evaluate the expansion of this sector of Venetian glassware in the 18th century.The second part studies the manufacturing sector and the organization of work in the Venetian glass beads sector. It examines the competitiveness of a production system that was marked by a strong presence of guilds (namely, the Arts of Murano, Margariteri and Perleri) and, at the same time, by a high degree of flexibility. Four themes are analyzed: the degree of openness of the glass beads industry and the guilds involved; the supply of raw materials; the subjection of labour to the merchants of the Arts; the position of women in both glass beads guilds. This part shows that glass beads chain was perfectly adapted to the characteristics of 18th-century international trade.Once produced, Venetian glass beads were exported worldwide. The third part analyses the routes and the agents who managed the trade flows and this product's 18th-century markets. It focuses on the two major circuits of this trade, that of the Ponant and that of the Levant. In the first case, the focus of analysis is on the importance of glass beads for Venetian trade with Western Europe, on the geography of markets, on the emergence of merchants-manufacturers margariteri and perleri as beads shippers and on the link between the western trade of Venetian glass beads and the Atlantic slave trade. Then, the focus of analysis is shifted to the East and more precisely to Egypt and Syria, the main stages of the journeys that brought the beads of Venice to Persia, India, and Central-Eastern Africa. After establishing the role of this product for the Venetian trade in the Levant, we analysed the routes, the trade evolution and the merchants involved in these traffics, especially the Jews.Glass beads were much more than gewgaws: they were an essential tool for the Venetian trade in the 18th century to enable the city of San Marco to remain connected in the major trade flows of the late Early modern period
Fontaine, Souen. "Formes, usages et circulation du verre en Méditerranée nord-occidentale entre le Ier siècle av. n.è et le Ier siècle de n.è : L’apport du mobilier des sites littoraux de Narbonnaise orientale." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM3109.
Full textSporadically distributed in the western Mediterranean at the beginning of the first century BC, crockery and glass containers come in consumption patterns during the augustean decades and become, in less than a century, objects of daily use. The Narbonensis coastline, key point between Mediterranean and continental worlds, early influenced by Hellenistic and Roman culture, is an propitious area for the observation of this unprecedented transformation of the economy of the glass. The study focuses on the analysis of homogeneous assemblages, from dated contexts, allowing a chrono-quantitative approach. The corpus is constituted of batches from 18 sites from eastern Narbonensis (wrecks, harbour levels, domestic, military and funeral contexts). The presence of production unreferenced in usual typologies invites to propose a suitable typo-chronological tool for early Mediterranean contexts. A transversal approach allows defining four major stages in the evolution of production and consumption patterns. If, in the state of knowledge and because of the particularity of the patterns of production of glass, the emergence and development of trade flows are difficult to specify, the abundant assemblages from harbour levels (Arles, Fos, Marseille, Toulon), highlight the preponderance of common consumer products, travelling as goods more than as containers, in the trade of glass products in the western Mediterranean and along the Rhone axis
Pablo, Fleurdelis, of Western Sydney Nepean University, and Faculty of Science and Technology. "Adsorptive stripping voltammetry of trace elements on a glassy carbon mercury film electrode." THESIS_FST_XXX_Pablo_F.xml, 1994. http://handle.uws.edu.au:8081/1959.7/207.
Full textDoctor of Philosophy (PhD)
Pablo, Fleurdelis. "Adsorptive stripping voltammetry of trace elements on a glassy carbon mercury film electrode." Thesis, View thesis, 1994. http://handle.uws.edu.au:8081/1959.7/207.
Full textPablo, Fleurdelis. "Adsorptive stripping voltammetry of trace elements on a glassy carbon mercury film electrode /." View thesis, 1994. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030826.113026/index.html.
Full textMay, Christopher David. "Development of novel analytical and interpretational protocols to facilitate the provenance establishment of glass and plastic evidence." University of Western Australia. Centre for Forensic Science, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0169.
Full textCosta, Mafalda. "A geochemical approach to the study of archaeological glassy materials." Doctoral thesis, Universidade de Évora, 2021. http://hdl.handle.net/10174/29209.
Full textSHIBUYA, ELISA K. "Acoplamento laser - espectrometro de massa de dupla focalizacao com fonte de plasma induzido (LA-HR-ICPMS): estudos fundamentais e analises quantitativa em amostras solidas." reponame:Repositório Institucional do IPEN, 1999. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9279.
Full textMade available in DSpace on 2014-10-09T14:03:39Z (GMT). No. of bitstreams: 1 06792.pdf: 9499715 bytes, checksum: 6570c2a329eeda3f80a0df8144a8dcf0 (MD5)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
FAPESP:97/09917-0
McHugh, Kelly C. "APPLICATIONS OF TRACE ELEMENT AND ISOTOPE GEOCHEMISTRY TO IGNEOUS PETROLOGY AND ENVIRONMENTAL FORENSICS." Miami University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=miami1494441686890672.
Full textGougouzian, Aline. "Le verre romain en Gaule du Centre-Est, du IIe s. av. n. è. au IV e s. de n. è. : production, circulation et usages en contexte urbain et rural." Thesis, Lyon 2, 2014. http://www.theses.fr/2014LYO20030.
Full textThe glass study between Anse and Macon, as part of a master's thesis, had put in front various origins and complex supply in consumer sites in the lower Saône valley. These findings called to extend the study of glass to the whole East Central Gaul. Intersection of primary importance rivers and land routes, this region appears as a focal point and a hub of trade and commerce in Gaul. Located at the crossroads of several producing glassware areas, it also receives many products in the Mediterranean area, through the Rhone, as the northern provinces, through the Saône, or Northern Italy, by routes through the Alps. In addition to its highly permeable import position, the recent research discovered several glass workshops in Lyon, Aoste and Autun, attesting to local production in the first century.This study revealed new craft indices in Clermont-Ferrand and Saint-Romain-de-Jalionas. Their production, however, is completely unknown like those of workshops of Autun and Vienne. Alone those of Lyon workshops provide a comparative basis. But if there are common point, we notice some oppositions which lead to believe that the production of a workshop was not totally for the local market. Analysis of glasses reveals, on the contrary, a complex supply consisting of local productions and imports average distance ( northern Italy, Narbonne, Atlantic Coast , Northern France ) or long one ( East , Rhineland , Black Sea ). These various origins mingle not only in the same contexts but evolve over time.In addition to the production, distribution and trade of glass, this thesis is interested in the functional and sociological aspects that reveals its use, in relation to other materials, such as ceramic or metal, or within the glass itself, through the morpho - functional classes it adopts. The comparison between the materials has been often impossible because of methodological pitfalls, due to archaeological constraints or those related to the material itself. In contrast , the distribution of glass according to its functions and context showed relatively little variation, despite the wide range of use it offers.Whether you are in a rich domus , villa or a artisan district with modest habitats, glassware is the most often common and devoted mainly serving table. The baths have delivered a similar distribution , as the number of perfume bottles is too few to be significant. The only significant difference observed in this context is the increased presence of fragments of glass windows. Both cemeteries studied provided an admittedly larger amount of perfume bottles but without reaching the proportions of certain burial sites, like in Lyon.Finally, glass studies based on contexts open reflections on the integration of glass between the second century BC and the beginning of the first century AD. The glass study in Vienna and two Villae in Saint-Laurent-d'Agny and Saint-Romain-de-Jalionas reveals, for comparable context, strong differences in the presence of glass. In urban context, early productions are well documented, whereas in both rural contexts, romanized in appearance in their architecture, the glassware is very anecdotal or absent
Dvořáková, Zuzana. "Obchodní dům "Centrum" v Brně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227137.
Full textWennerholm, Madeleine. "Medeltida dryckesglas i Sverige : En fragmenterad historia." Thesis, Uppsala universitet, Institutionen för arkeologi och antik historia, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-176119.
Full textGamla Uppsala - framväxten av ett mytiskt centrum
Willemse, Chandre Monique. "Nanocomposite-graphene based platform for heavy metal detection." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8123_1323852117.
Full textKaliariková, Beáta. "Budoucnost brněnského výstaviště." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-391845.
Full textSabil, Naïma. "La datation par les traces de fission : aspects méthodologiques et applications thermochronologiques en contexte alpin et marge continentale." Phd thesis, Grenoble 1, 1995. http://www.theses.fr/1995GRE10066.
Full textWood, Marilee Hopkins. "GLASS BEADS AND PRE-EUROPEAN TRADE IN THE SHASHE-LIMPOPO REGION." Thesis, 2006. http://hdl.handle.net/10539/277.
Full textDuring the Islamic period (8th to 15th centuries) glass beads are the most abundant evidence of international trade in southern Africa. Archaeologists, however, have underutilized them because they are small, monochrome and difficult to categorize. I show they can be divided into identifiable series that have temporal parameters. Once identified, the beads can help interpret site chronology as well as regional and international interaction. Glass beads are also useful in reconstructing trade patterns in the Indian Ocean. Present perceptions concerning Islamic period trade to eastern and southern Africa are based largely on Islamic ceramics and Arab documents. Thus, it is generally believed that trade to southern Africa was an extension of the East Coast monsoon-driven trade that was conducted mainly by local mariners familiar with the difficult conditions in the Mozambique Channel. Comparison of glass bead assemblages from eastern and southern Africa, however, shows that it is unlikely the beads reaching the south were traded through ports to the north. Based on distribution patterns and recent chemical analyses, I propose they were arriving directly from South and/or Southeast Asia.
Palk, Debbie. "The economics of trade on the Eastern Cape Frontier, 1820-1860: a study of the glass and metal artefact assemblages from Huntley Street, Farmerfield and Fort Double Drift." Diss., 2018. http://hdl.handle.net/10500/24549.
Full textThe collections-based research reported upon in this dissertation focuses on three sites in the Eastern Cape: Huntley Street in Grahamstown, Farmerfield, a nearby Wesleyan mission station, and Fort Double Drift, a British fortification on the Great Fish River. The collection, which is housed in the Albany Museum, derives from Patrice Jeppson’s excavations, completed in the 1980s. Analyses of the excavated glass and metal, augmented by a close reading of tender and shopkeepers’ advertisements in The Graham’s Town Journal, chronicle how merchants, settlers, soldiers, missionaries and local African communities were involved in, and affected by, trade between 1820 and 1860. The study explores aspects of the mercantile economy, consumerism and military provisioning relating to a wide range of imported glass and metal merchandise. The burgeoning trade linked various enterprises, groups and individuals through monetary and social transactions, reflecting the steady incorporation of the Eastern Cape into the British colonial trading network.
Die versamelingsgebaseerde navorsing waaroor in hierdie verhandeling verslag gedoen word, fokus op drie terreine in die Oos-Kaap: Huntley-straat in Grahamstad, Farmerfield, ’n nabygeleë Wesleyaanse sendingstasie, en Fort Dubbeldrif ’n Britse vesting aan die Groot-Visrivier. Die versameling, wat in die Albany-museum gehuisves word, is afkomstig van Patrice Jeppson se opgrawings, wat in die 1980's voltooi is. Ontledings van die opgegraafde glas en metaal, aangevul deur ’n grondige studie van tender- en winkelieradvertensies in The Graham’s Town Journal, boekstaaf hoe handelaars, setlaars, soldate, sendelinge en plaaslike Afrika-gemeenskappe by handel tussen 1820 en 1860 betrokke was, en daardeur beïnvloed is. Die studie verken aspekte van die handelsekonomie, verbruikerisme en militêre bevoorrading met betrekking tot ’n wye verskeidenheid ingevoerde glas- en metaalhandelsware. Die bloeiende handel het verskeie ondernemings, groepe en individue deur monetêre en sosiale transaksies met mekaar verbind, wat die geleidelike opname van die Oos-Kaap in die Britse koloniale handelsnetwerk weerspieël.
Uphando lwezinto eziqokelelweyo ekunikwe ingxelo ngalo kule disetheyishini, lugxile kwiindawo ezintathu eziseMpuma Koloni ezizezi: eHuntley Street eRhini, eFarmerfield, esisitishi seMishini yamaWesile, naseFort Double Drift, eyinqaba yamaBhilitane ekwiGreat Fish River. Le ngqokelela, egcinwe eAlbany Museum, isuka kwizinto ezazigrunjwe nguPatrice Jeppson, grunjo olo olwagqitywa phaya koo1980. Uphononongo lweeglasi neentsimbi ezagronjwayo, oluxhaswa nakukufundwa kweentengiso ezakhutshwayo zeethenda nezoonovenkile kwi-The Graham’s Town Journal, lunika iinkcukacha zeendlela abarhwebi, abemi ababesuka kwamanye amazwe aphesheya kweelwandle, abefundisi ababesuka kwamanye amazwe, amajoni noluntu olumnyama lwaloo mimandla ababebandakanyeka ngayo nebabechatshazelwa ngayo lurhwebo olwaqhubeka phakathi ko-1820 no-1860. Olu phando luvelela imiba yoqoqosho lorhwebo, ukhuselo lwabathengi, nobonelelo lwezinto zomkhosi lwezinto eziliqela zeeglasi nezentsimbi. Olu rhwebo olwaluhlumile lwahlanganisa amashishini ahlukileyo, amaqela kunye nabantu nje abazimeleyo ngokuthi barhwebelane ngeemali nangezinto zentlalo, yaye oku kubonisa ukungeniswa kweMpuma Koloni kuthungelwano lorhwebo lobukoloniya lwamaBhilitane.
Anthropology and Archaeology
M.A. (Archaeology)
Williams, Jane Welch. "The windows of the trades at Chartres Cathedral." 1987. http://catalog.hathitrust.org/api/volumes/oclc/18703286.html.
Full textVita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 326-355).
Ryan, Daberath. "Glass capillary gas chromatographic analysis for trace amounts of cyclopropenoid fatty acids." Thesis, 1987. http://hdl.handle.net/1957/27215.
Full textGraduation date: 1987
Miller, James Christopher. "Investigation of Trace Uranium in Biological Matrices." Thesis, 2013. http://hdl.handle.net/1969.1/151045.
Full textZbeda, Salma Gumaa Amar. "Multilayer graphene modified metal film electrodes for the determination of trace metals by anodic stripping voltammetry." 2013. http://hdl.handle.net/11394/3802.
Full textIn this study multilayer graphene nanosheets was synthesize by oxidizing graphite to graphene oxide using H2SO4 and KMnO4 followed by reduction of graphene oxide to graphene using NaBH4. The graphene nanosheets were characterized by Fourier Transform Infrared (FTIR) and Raman spectroscopy, high resolution transmission electron microscopy (HRTEM), Scanning electron microscopy (SEM) and X-ray diffraction (XRD). HRTEM images showed that the multilayer graphene were obtained. The graphene was immobilized directly onto a glassy carbon electrode using the drop coating technique followed by the in situ deposition of mercury, bismuth or antimony thin films to afford graphene modified glassy carbon metal film electrodes (Gr-GC-MEs). The experimental parameters (deposition potential, deposition time, rotation speed, frequency and amplitude) were optimized, and the applicability of the modified electrode was investigated towards the individual and simultaneous determination of Zn2+, Cd2+ and Pb2+ at the low concentration levels (μg L-1) in 0.1 M acetate buffer (pH 4.6) using square wave anodic stripping voltammetry (SWASV). The detection limits values for the Gr-GC-HgE was 0.08, 0.05 and 0.14 μg L-1 for Zn2+, Cd2+ and Pb2+, respectively. The Gr-GC-BiE the detection limits for was 0.12, 0.22 and 0.28 μg L-1 for Zn2+, Cd2+ and Pb2+ while the detection limits for the Gr-GC-SbE was 0.1, 0.3 and 0.3 μg L-1 for Zn2+, Cd2+ and Pb2+, respectively. A Gr-GCE prepared without any binding agents or metal film had detection limits for Zn2+, Cd2+ and Pb2+ of 3.9, 0.8 and 0.2 μg L-1 for Zn2+, Cd2+ and Pb2+. Real sample analysis of which was laboratory tap water was performed using the Gr-GCMEs. Only Gr-GC-HgE was sensitive enough to detect metal ions in the tap water samples at the 3ppb level whereas, the GC-BiE and GC-SbE detected the metal ions at the 10 μg L-1 to 30 μg L-1 level.
Nekvindová, Terezie. "Výstava versus výstavnictví. Československé pavilony na Expo 1967 v Montrealu a Expo 1970 v Ósace." Doctoral thesis, 2014. http://www.nusl.cz/ntk/nusl-342315.
Full textJiang, Yan-Long, and 江彥龍. "The evolution of ZrCu precipitation and mechanical properties affected by the trace addition of Ta particles in Zr-Cu-Al-Co bulk metallic glass." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/79029598822228047589.
Full text國立中央大學
材料科學與工程研究所
105
In some Zr-based bulk metallic glass composites (BMGCs), the ZrCu B2 phase can be precipitated from the matrix. When the ZrCu B2 phase subjected to the stress from the shear banding, it will absorb the energy of shear band and transform into ZrCu B19' phase, and so as to improve the plasticity of Zr-based BMG. However, the particle size and distribution of ZrCu B2 phase in Zr48Cu47.5Al4Co0.5 BMG cannot be well controlled in general casting. Large agglomerated and inhomogeneous distributed ZrCu B2 phase were usually found in the Zr48Cu47.5Al4Co0.5 BMG samples. Therefore, the concept of inoculation in conventional solidification process is applied in this study. The Ta particles (size of 5–30 µm) with 0 ~ 1.0 vol.% were added into Zr48Cu47.5Al4Co0.5 BMG matrix as the inoculant. By using the ultrahigh melting point of tantalum and immiscible with Zr-base substrate, the Ta particles can be uniformly dispersed in the Zr-based alloy melt as the nucleation sites for precipitating ZrCu B2 phase, and form a homogeneously distributed ZrCu B2 phase in the matrix of Zr48Cu47.5Al4Co0.5 BMG. Then, the different cooling rates of solidification process are further used to control the particle size of ZrCu B2 phase. Based on the results of XRD analysis, Zr48Cu47.5Al4Co0.5 alloy rods with 0 ~ 0.75 vol.% Ta particle additions made by the copper mold at the temperature of -30°C present amorphous structure co-existing with ZrCu B2 phase. However, when the temperature of copper mold increases to higher than -20 °C, the sample with 0.75 vol.% Ta particle additions will be totally crystallized. After adding Ta particles, the precipitates of ZrCu B2 phase in the Zr48Cu47.5Al4Co0.5 alloy matrix exhibit more even distribution and round shape. But when decrease the cooling rate of solidification, the large amount of ZrCu B2 precipitates will agglomerate and form a large particle. According to the results of DSC analysis, with increasing the amount of Ta particles and decreasing the cooling rate of solidification, the enthalpy value of crystallization exothermic peak decreases, which means that the volume fraction of amorphous matrix decreased and the precipitate of ZrCu B2 phase increased. The results of compression test reveal that the sample of Zr48Cu47.5Al4Co0.5 added with 0.75 vol.% Ta particle performs the highest mechanical properties, 1750 MPa yield stress, 1890 MPa fracture stress, and 14 % plastic strain. This is 6.5 % improvement of plastic strain in comparison with its base alloy.
Denman, John A. "The application of time-of-flight secondary ion mass spectrometry (ToF-SIMS) to forensic glass analysis and questioned document examination." 2007. http://arrow.unisa.edu.au:8081/1959.8/40576.
Full textMatouš, Petr. "Voltametrické stanovení vybraných psychofarmak pomocí uhlíkových elektrod." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-396825.
Full text