Academic literature on the topic 'Metals conservation'

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Journal articles on the topic "Metals conservation"

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Griswold, John, and Terry Drayman-Weisser. "Gilded Metals: History, Technology, and Conservation." Journal of the American Institute for Conservation 43, no. 1 (2004): 116. http://dx.doi.org/10.2307/3179857.

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Tear, Paul. "Gilded Metals: History, Technology and Conservation." Studies in Conservation 49, no. 2 (January 2004): 141. http://dx.doi.org/10.1179/sic.2004.49.2.141.

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MacLeod, Ian Donald, Robert E. Child, and Joyce M. Townsend. "Modern Metals in Museums." Studies in Conservation 35, no. 3 (August 1990): 167. http://dx.doi.org/10.2307/1506173.

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Sembrat, Joseph, Patty Miller, Jee Skavdahl, and Lydia Frenzel. "Conservation of Historic Metals by Waterjetting Techniques." Journal of Architectural Conservation 11, no. 3 (January 2005): 121–46. http://dx.doi.org/10.1080/13556207.2005.10784956.

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Schweizer, François. "Chemistry and the conservation of archaeological metals." Science of The Total Environment 143, no. 1 (March 1994): 127–29. http://dx.doi.org/10.1016/0048-9697(94)90539-8.

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Musa, Mukhtaruddin, Mohd Hanafi Ani, and Raihan Othman. "Natural Corrosion Inhibitor for Corrosion Protection of Metal Artefact: An Overview." Advanced Materials Research 701 (May 2013): 323–28. http://dx.doi.org/10.4028/www.scientific.net/amr.701.323.

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The degradation of most of metals, with the exception of gold is a universal reaction. It is a constant and on-going problems, make it often difficult to eliminate completely causing either industrial or heritage conservation losing a lot of money. One way and most practical for corrosion protection are using green inhibitor. Therefore it is widely use either industry or heritage conservation. Unfortunately, the inhibitors used in conservation are frequently hazardous to conservator, either through inhaler or touch with skin. Responding to this, several researches has been conducted to look into environmental friendly inhibitors or green inhibitors. This paper will review current practice use of inhibitor in metal preservation before propose a new inhibitor which been used a long time ago in Malay traditional practice in Keris preservation.
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Moncrieff, Anne, Richard Hughes, and Michael Rowe. "The Colouring, Bronzing and Patination of Metals." Studies in Conservation 30, no. 4 (November 1985): 193. http://dx.doi.org/10.2307/1506046.

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Oddy, Andrew, and D. A. Scott. "Metallography and Microstructure of Ancient and Historic Metals." Studies in Conservation 37, no. 4 (November 1992): 282. http://dx.doi.org/10.2307/1506361.

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Scott, David A. "Copper Compounds in Metals and Colorants: Oxides and Hydroxides." Studies in Conservation 42, no. 2 (1997): 93. http://dx.doi.org/10.2307/1506620.

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Scott, David A. "Application of colour metallography in the examination of ancient metals." Studies in Conservation 59, no. 2 (January 25, 2014): 113–22. http://dx.doi.org/10.1179/2047058413y.0000000092.

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Dissertations / Theses on the topic "Metals conservation"

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Cottam, Christopher Andrew. "TEA CO₂-laser treatment of coated and corroded metals." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/27042.

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A selection of corroded, painted and lacquered metals have been subjected to high-powered, pulsed TEA C02-laser radiation to investigate self-limiting cleaning and treatment processes. Changes in the surface chemistry were observed and recorded using a variety of surface analysis techniques including X-ray Powder Diffraction, Auger Electron Spectroscopy and X-ray Photoelectron Spectroscopy. Changes in surface appearance were recorded using colour macro-photography and Scanning Electron Microscopy. The effects of both plasma and sub-plasma laser fluences were investigated.
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Wain, Leonie Alison, and n/a. "Investigating the condition of organic coatings on metals: electrochemical evaluation techniques in a conservation context." University of Canberra. Resources, Environmental & Heritage Sciences, 2002. http://erl.canberra.edu.au./public/adt-AUC20050726.144111.

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Electrochemical techniques have potential for use in conservation, both to evaluate the protectiveness of existing coatings on metal artefacts and to evaluate potential new conservation coatings. Three electrochemical methods have been examined in this study for their applicability to conservation problems. Corrosion Potential Measurement is simple but provides only minimal information on the corrosion processes occurring in an electrochemical system. Electrochemical Impedance Spectroscopy provides both mechanistic and predictive information on coating performance, but the data are complex to interpret and measurements require equipment that is at present too bulky for effective on-site use and beyond the budget of most conservation laboratories. Electrochemical Noise Measurement can be performed using cheap, portable instrumentation and theoretically requires relatively simple statistical processing and interpretation, making it attractive for conservation applications. This project looks at the development of a simple, low cost electrochemical noise measurement system for conservation needs, and uses it to compare Electrochemical Noise Measurement with the other two techniques.
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Lybarger, Hollie R. "Detection of Heavy Metals in Rocky Mountain Tailed Frog (Ascaphus montanus) Tadpoles near Abandoned Mines in Northern Idaho." Thesis, Southern Illinois University at Edwardsville, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1557838.

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Amphibians are important bioindicators in environmental assessment. This highly diverse group of vertebrates is experiencing unprecedented declines worldwide due to a complex array of factors, including disease, habitat loss, invasive species, and environmental pollution. Heavy metals are especially problematic due to their persistence and ability to present a localized hazard even at sublethal levels. Northern Idaho has a long history of mining activity, and many watersheds have experienced heavy metal contamination. These streams contain many sensitive species, including the Rocky Mountain Tailed Frog, (Ascaphus montanus). While tailed frog populations are known to be especially vulnerable to logging and road building, the effects of local mining have not been documented. In order to assess the vulnerability of this species to heavy metal contamination, tadpoles were collected from three distinct populations across the Idaho Panhandle National Forest. Two sampling sites (Gold Creek and Beauty Creek) were characterized by abandoned mines in the headwaters of the streams, while a stream absent of any local historic mining (Bumblebee Creek) served as a reference site. Whole tadpoles were pooled and treated using EPA Method 3050B and analyzed for dissolved metal concentration (ug/g) using ICP-MS. We found the average metal concentrations in tadpoles (ug/g) at mining sites were generally higher than the reference site. Cadmium (Cd), copper (Cu), lead (Pb), and zinc (Zn) were significantly higher in tadpoles at Gold Creek when compared with the reference site. These results are consistent with other studies indicating metals from historic mining activity are still evident in these stream communities.

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Paris, Josephine Rosanna. "Brown trout and toxic metals : local adaptation to the legacy of Britain's mining history." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/29554.

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The effect of human activity on the natural world is increasingly shaping the evolution of species. The capacity of evolution to occur in individuals of a species, via natural selection acting on the genotypes of local populations through successive generations, is known as local adaptation. In southwest England, historical mining activity has resulted in a patchwork of highly metal-contaminated rivers across the region. Where the ecological diversity in many of these rivers has been decimated, metal-tolerant brown trout (Salmo trutta L.) populations seem to thrive. What are the mechanisms underlying this apparent metal-tolerance? And can it be attributed to processes of local adaptation? This thesis takes a multi-faceted approach in assessing this, by exploring the patterns and processes involved in metal-tolerance in brown trout populations in southwest England. A series of investigations were undertaken, including the use of neutral genetic markers (microsatellites), reduced representation genome sequencing (RAD-seq), common-garden exposure experiments, and genome-wide analysis of hepatic gene expression (RNA-seq). The microsatellite analysis illustrated that metal-tolerant trout have a different genetic architecture compared to fish in clean rivers and, using Bayesian analysis, these demographic differences were correlated with key periods of mining history. We then developed an approach to facilitate robust screening of genome-wide polymorphic loci through a method of parameter optimisation for RAD-seq. This approach formed the basis for identifying loci for investigating the genomic processes of local adaptation in metal-tolerant trout. We present genome-wide (RAD-seq) data highly indicative that neighbouring trout populations, differently impacted by unique ‘cocktails’ of metal pollutants have evolved both parallel and convergent mechanisms of metal tolerance. Through a common garden experiment, exposing metal-tolerant and metal-naïve fish to a mixture of metals, we were able to hone in on the physiological mechanisms underlying metal-tolerance. Finally, through RNA-seq, we observed that metal-tolerant fish showed little to no changes in hepatic gene expression when exposed to metals, pointing to innate mechanisms of metal handling. Together, the marriage of these various investigations showcases the remarkable ability of local adaptation in conferring metal-tolerance to brown trout populations in southwest England, and, importantly, the resilience of species’ in the face of human-altered environments.
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Cai, Minghao. "Acousto-Plastic deformation of metals by nonlinear stress waves." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1156445865.

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Kohlbach, James M. "Tube-based field-portable X-ray fluorescence (FPXRF) as a qualitative screening tool for Resource Conservation and Recovery Act (RCRA) metals in children's products and comparison to total metals analyses to predict hazardous waste metals toxicity characteristic /." Online version of thesis, 2009. http://hdl.handle.net/1850/10925.

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Koleini, Farahnaz. "Metals from K2 and Mapungubwe : a technological study of early second millennium material culture, with an emphasis on conservation." Thesis, University of Pretoria, 2013. http://hdl.handle.net/2263/30916.

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This thesis focuses on the conservation of iron and copper objects that mostly belong to the Iron-Age sites of K2 and Mapungubwe (825-1290 AD), the two most prominent archaeological settlements in the middle Limpopo valley area of northern South Africa. For the purpose of conservation three main objectives were considered during this study which consisted of revealing the material and methods of fabrication, evaluating physical and chemical stability, and preservation. The selected objects were in four main categories, namely round wire, strip, plate and implements, and were in various states of preservation, from heavily to low corroded. This thesis consists of seven chapters that are based on these objectives. Chapter 1, introduction, provides a short introduction to the study, presents the study objectives, a brief history of the investigation of the sites, some archaeological interpretations and a discussion on the metallurgy of the objects made by the inhabitants. Chapter 2, methodology, contains analytical methods and principles which were used in gathering and management of the data. Chapters 3 and 4 present a discussion of the methods of manufacture of the selected artefacts as well as their physical stability. In these chapters the iron and copper artefacts were respectively studied by the use of non-destructive methods such as neutron tomography and microscopy. Here, a new quantitative technique in estimating the corrosion percentage by utilizing neutron tomograms and IMAGEJ software was introduced. Some of the objects with ambiguity in their fabrication, such as iron hoes or copper bangles with a central longitudinal void, were sampled destructively for metallography examination and further chemical analyses. In the case of the manufacture of native objects the outcomes confirmed the results of previous researches. Meanwhile new light was shed regarding signs of a new technique used in the production of some type of round wire on Mapungubwe Hill (strip-drawing). In the case of the round wires that were used in the manufacture of the bangles finding the definite method of manufacture was problematic. In Chapter 5 the chemical stability and the deterioration process of the artefacts were studied with consideration of both the corrosion composition as well as the effects of environmental conditions on their formation. It indicated hydroxyl (OH-) was the prominent ions in the corrosion of iron although a high amount of soluble chloride ions were detected in the burial environment in K2. In the case of copper artefacts, both chloride and hydroxyl ions were effective in corrosion and the objects were mostly subjected to severe bronze disease. This information was gathered using analytical techniques such as Raman spectroscopy, XRD and SEM-EDS. In Chapter 6 the suitable and practical conservation methods were presented. These methods consisted of both interventive and preventive conservation and were designed on the basis of the chemical and physical stability of the objects and environmental condition in the museum and in the storage facility. In chapter 7 (conclusion) a summary and the results of the study was presented which formed the final part of the thesis.
Thesis (DPhil)--University of Pretoria, 2013.
Anthropology and Archaeology
DPhil
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Cascais, Juliana Bizarro. "A gestão e conservação de artefatos arqueológicos metálicos: o caso da intervenção arqueológica realizada na Residência Conselheiro Francisco Antunes Maciel – Pelotas, RS." Universidade Federal de Pelotas, 2016. http://repositorio.ufpel.edu.br:8080/handle/prefix/2922.

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A intervenção arqueológica desenvolvida no âmbito do Programa Monumenta, na Residência Conselheiro Francisco Antunes Maciel (Pelotas-RS), caracteriza-se com problemáticas referentes a gestão arqueológica e conservacionista dos materiais arqueológicos. Esta pesquisa objetivou avaliar o estado de conservação dos artefatos metálicos arqueológicos resgatados do sítio arqueológico da Residência Conselheiro Francisco Antunes Maciel (Pelotas-RS), acondicionados no LEPAARQ (Laboratório de Ensino e Pesquisa em Antropologia e Arqueologia), com ênfase nos procedimentos de diagnóstico e propostas de conservação preventiva e conservação curativa à esses materiais. O estudo baseou-se em demonstrar a esfera da gestão de materiais arqueológicos, para que estes, posteriormente, possam ser musealizados e, assim, expostos para a comunidade dentro de um contexto histórico e social.
The archaeological intervention developed within the Monumenta Program in Residence Counselor Francisco Antunes Maciel (Pelotas) is characterized with issues related to archaeological management and conservation of archaeological materials. This study aimed to assess the state of conservation of archaeological metal artifacts recovered from the archaeological site of the Residence Counselor Francisco Antunes Maciel (Pelotas) put in LEPAARQ (Teaching and Research Laboratory for Anthropology and Archaeology), with emphasis on diagnostic procedures and proposals preventive conservation and curative conservation of these materials. The study was based on demonstrating the sphere of management of archaeological materials, for these can later be musealized and thus exposed to community within a social and historical context.
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Gobbato, Gustavo Maluf. "Avaliação do gradiente de contaminação por elementos metálicos e hidrocarbonetos nos sedimentos desde a zona costeira do sistema estuarino de Santos e São Vicente até o Parque Estadual Marinho da Laje de Santos." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-15042013-103922/.

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O Parque Estadual Marinho da Laje de Santos (PEMLS) é considerado um dos melhores pontos de mergulho do Brasil além de apresentar grande importância ecológica para a região. Está localizado a 40 km de uma das áreas costeiras mais contaminada do Brasil, o Sistema Estuarino de Santos e São Vicente (SESSV) que apresenta como principais fontes de contaminação as atividades industriais e o maior porto da América Latina. O presente estudo teve como objetivo avaliar o gradiente de contaminação por metais e hidrocarbonetos alifáticos (AH) e policíclicos aromáticos (HPA) nos sedimentos desde o SESSV até o PEMLS para identificar o grau de contaminação e as possíveis fontes dos contaminantes. Amostras de sedimento superficial foram coletadas em pontos distribuídos por todo SESSV, na baia de Santos, na zona marinha adjacente e no PEMLS. Os resultados foram comparados aos valores da qualidade dos sedimentos (VGQS) propostos na literatura para avaliar o grau de contaminação nos sedimentos. De acordo com os resultados, a contaminação por metais e hidrocarbonetos nos sedimentos do SESSV é elevada, acima dos limites estabelecidos nos VGQS, principalmente na porção interna do estuário próximo as atividades industriais. As principais fontes de emissão de contaminantes para o SESSV são os efluentes industriais e a queima de combustíveis fósseis. A zona marinha adjacente, onde está localizada a área de descarte do material dragado, apresentou, depois do estuário, as maiores concentrações de metais e hidrocarbonetos. Essas concentrações foram mais elevadas que as encontradas na baia de Santos. No PEMLS foram registrados indícios de contaminação por Cr, Hg, Ni, Pb e Zn, os quais tem origem de fontes localizadas na costa, que exportam os contaminantes até a região do PEMLS através das correntes marinhas e ainda fontes locais como barcos de operadoras de mergulho e o tráfego de navios. O Ni apresentou concentrações que estiveram acima dos limites do VGQS. Os hidrocarbonetos não apresentaram concentrações elevadas nos sedimentos do PEMLS. Sendo assim, é importante que seja realizado um controle de poluição no SESSV a fim de remediar as áreas mais contaminadas e um monitoramento continuo do gradiente de contaminação desde a zona de costa até o PEMLS para garantir a preservação desse ecossistema que já apresenta indícios de contaminação. A criação de um plano de manejo específico para o PEMLS auxiliaria na proteção dessa Unidade de Conservação.
The Marine State Park of Laje de Santos (MSPLS) is considered one of the best diving spots in Brazil and presents great ecological importance to the region. It is located 40 km from one of the most polluted coastal areas of Brazil, Santos and São VIcente Estuarine System (SSVES) which has as main sources of contamination industrial activities and the largest port in Latin America. The present study aimed to evaluate the gradient of metal and aliphatic hydrocarbons (AH) and polycyclic aromatic hydrocarbons (PAH) contamination in sediments from the SSVES until MSPLS to identify the degree of contamination and the possible sources of contaminants. Sediment samples were collected at sites distributed around SSVES, in the bay of Santos, in the nearby seashore and PEMLS. The results were compared to the values of sediment quality (VGQS) proposed in the literature to assess the degree of contamination in sediments. According to the results, the contamination by metals and hydrocarbons in the sediments of SSVES is very high, above the limits established in the VGQS, mainly in the inner portion of the estuary near the industrial activities. The main sources of contaminants to the SSVES are industrial effluents and the burning of fossil fuels. In the zone nearby seashore between SSVES and MSPLS, where is located the area of disposal of dredged material presented after the estuary, the highest concentrations of metals and hydrocarbons higher than those recorded in the bay of Santos were found. In MSPLS were found evidence of contamination by Cr, Hg, Ni, Pb and Zn were found, which originated from sources located on the coast, the contaminants that export to the region MLSPS through ocean currents and even local sources as boats operators diving and vessel traffic. Therefore, it is important to establish a pollution control program in SSVES in order to remediate the contaminated areas and a continuous monitoring of the pollution gradient from the coast to the MSPLS to ensure the preservation of this ecosystem that is already showing signals of contamination. The creation of a management plan specific to the MSPLS will help the protection of this important Conservation Unit.
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NISTI, MARCELO B. "Lixiviação de metais e radionuclídeos em solos tropicais condicionados com fosfogesso." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/27137.

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O fertilizante fosfatado brasileiro é obtido pela reação por via úmida da rocha fosfática de origem ígnea com ácido sulfúrico concentrado, obtendo como produto final, o ácido fosfórico e como resíduo, o fosfogesso, que é estocado em pilhas, a céu aberto, junto às instalações produtoras. Parte do fosfogesso vem sendo utilizada na agricultura como condicionador de solos, devido a sua alta solubilidade, podendo melhorar a estrutura do solo, reduzir a erosão do solo, aumentar os níveis de enxofre e fósforo disponíveis e melhorar a composição dos fertilizantes. Mas a presença de radionuclídeos e metais no fosfogesso impõem restrições sobre o uso na agricultura. Para garantir uma utilização segura, é importante estimar a lixiviação dos radionuclídeos e metais presente no fosfogesso. O objetivo deste trabalho foi estudar a disponibilidade dos radionuclídeos relevantes do ponto de vista radiológico (238U, 232Th, 226Ra, 228Ra, 210Pb e 210Po) e dos metais (As, Cd, Cr, Ni, Se, Hg e Pb) presentes no fosfogesso de procedência brasileira, levando em consideração sua aplicação em solo agricultável. Para esta finalidade, foi desenvolvido um protocolo experimental em escala de laboratório, no qual colunas foram preenchidas com misturas de solos arenosos e argilosos típicos brasileiros condicionados com fosfogesso. A essas colunas foi adicionada água, a fim de se alcançar uma extração branda desses elementos. Foi implantado um procedimento analítico para a determinação sequencial dos radionuclídeos de interesse na solução obtida na lixiviação. As frações disponíveis foram obtidas utilizando-se a razão entre as concentrações dos radionuclídeos no lixiviado e as concentrações dos radionuclídeos nas amostras de solo, solo condicionado com fosfogesso e fosfogesso. Os valores de concentração dos radionuclídeos 238U, 232Th, 226Ra, 228Ra, 210Pb e 210Po obtidos no fosfogesso das duas procedências variaram de 86 Bq kg-1 a 352 Bq kg-1. As concentrações de 226Ra e 228Ra obtidas no fosfogesso ficaram abaixo do limite máximo permitido pela resolução da Comissão Nacional de Energia Nuclear, atendendo às condições necessárias para o seu uso na agricultura. Os resultados obtidos para os metais As, Cd, Cr, Ni, Pb, Se e Hg no fosfogesso foram inferiores ao limite máximo para condicionador de solo e para fertilizantes estabelecidos pelo Ministério da Agricultura, Pecuária e Abastecimento, atendendo às condições necessárias para o seu uso na agricultura. Os radionuclídeos 226Ra, 210Pb, 210Po e 228Ra apresentaram frações disponíveis nos solos e solos condicionados com fosfogesso variando de 0,05% a 1,2%; para o 238U e 232Th as frações disponíveis apresentaram valores inferiores a 0,05%. Os metais apresentaram frações disponíveis nos solos e solos condicionados com fosfogesso variando de 0,05% a 1,07%. Os resultados obtidos para a fração disponível de metais e radionuclídeos no solo condicionado com fosfogesso demostraram que mesmo utilizando concentrações de fosfogesso dez vezes acima da dose recomendada, a disponibilização foi desprezível. Pode-se concluir que a utilização do fosfogesso como condicionador de solos é viável, no que concerne a disponibilidade dos metais e radionuclídeos estudados.
Tese (Doutorado em tecnologia Nuclear )
IPEN/D
Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
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Books on the topic "Metals conservation"

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Bill, Martin. Practical building conservation: Metals. Edited by English Heritage. London: English Heritage, 2009.

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International Conference on Metals Conservation (1998 Draguignan-Figanieres, France). Metal 98: Proceedings of the International Conference on Metals Conservation. Edited by Robbiola Luc and Mourey William. London: James & James (Science publishers), 1998.

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Metal 98 (Conference) (1998 Draguignan-Figanières, France). Metal 98: Proceedings of the International Conference on Metals Conservation, Draguignan-Figanières, France, 27-29 May 1998 = Proceedings of the Internatinal Conference on Metals Conservation. Edited by Mourey William and Robbiola Luc. London: James & James, 1998.

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International Conference on Metals Conservation (2004 Canberra, Australia). Metal 04: Proceedings of the International Conference on Metals Conservation = Metal 04 : actes de la Conférence internationale sur la conservation des métaux. Edited by Ashton John and Hallam David. Canberra: National Museum of Australia, 2004.

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Institute, Canadian Conservation, and Canada Canadian Heritage, eds. Metals and corrosion: A handbook for the conservation professional. Ottawa: Canadian Conservation Institute, 2004.

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Connolly, Michael David. Effects of air abrasives on the surface texture of metals. København: Kongelige Danske Kunstakademi, 1986.

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International Conference on Metals Conservation (1995 Semur en Auxois, France). Metal 95: Actes de la Conférence internationale sur la conservation des métaux = proceedings of the International Conference on Metals Conservation. London: James X James, 1997.

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D, MacLeod I., Pennec Stéphane, and Robbiola Luc, eds. Metal 95: Actes de la Conférence internationale sur la conservation des métaux. London: James & James, 1997.

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R, Walker James. IMR sourcebook: A comprehensive guide to the world of metal repair, preservation, and conservation ... Escondido, CA: Institute of Metal Repair, 1989.

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International Symposium on the Conservation and Restoration of Cultural Property (13th 1989 Tokyo, Japan). Current problems in the conservation of metal antiquities. Tokyo: Tokyo National Research Institute of Cultural Properties, 1989.

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Book chapters on the topic "Metals conservation"

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Burgess, David. "Metals and Their Conservation." In Chemical Science and Conservation, 40–54. London: Macmillan Education UK, 1990. http://dx.doi.org/10.1007/978-1-349-11429-0_4.

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MacLeod, Ian D. "Metals: Preservation and Conservation." In Encyclopedia of Global Archaeology, 1–8. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-51726-1_539-2.

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MacLeod, Ian D. "Metals: Preservation and Conservation." In Encyclopedia of Global Archaeology, 4841–50. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4419-0465-2_539.

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MacLeod, Ian D. "Metals: Preservation and Conservation." In Encyclopedia of Global Archaeology, 7086–94. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-30018-0_539.

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Argyropoulos, Vasilike, Stamatis C. Boyatzis, Maria Giannoulaki, Elodie Guilminot, and Aggeliki Zacharopoulou. "Organic Green Corrosion Inhibitors Derived from Natural and/or Biological Sources for Conservation of Metals Cultural Heritage." In Microorganisms in the Deterioration and Preservation of Cultural Heritage, 341–67. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69411-1_15.

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AbstractIn the last decade, there has been an increase in research related to green corrosion inhibitors for conservation of metals cultural heritage to help promote sustainable practices in the field that are safe, environmentally friendly, and ecologically acceptable. The most common are organic substances derived either from natural and/or biological sources: plant extracts and oils, amino acids, microorganisms, and biopolymers. The chapter will provide a review of these substances as corrosion inhibitors for metals conservation, by discussing the state-of-the-art research to date, with a special focus on cysteine. Most of the research has focused on the examination of such inhibitors on metal coupons with or without corrosion products using electrochemical techniques or weight-loss measurements to determine their effectiveness. Some of these studies have also considered the conservation principles for practice, i.e., reversibility of the treatment and the visual aspect of the modification of the treated metal surface. However, before such green inhibitors can be routinely applied by conservators, more research is required on their application to real artefacts/monuments using in situ corrosion measurements. Furthermore, given that the composition of a green inhibitor is highly dependent on its extraction process, research must also involve identifying the specific adsorption models and involved mechanisms to ensure reproducibility of results.
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Cooke, Arthur V., and W. Mark Buchta. "Use of TiB2Cathode Material: Demonstrated Energy Conservation in VSS Cells." In Essential Readings in Light Metals, 1153–63. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118647745.ch153.

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Cooke, Arthur V., and W. Mark Buchta. "Use of TiB2 Cathode Material: Demonstrated Energy Conservation in VSS Cells." In Essential Readings in Light Metals, 1153–63. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48200-2_153.

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Blake, G. "Long-Term Effects of Metals on Helophytes in Lakes." In Environmental Stress: Indication, Mitigation and Eco-conservation, 143–52. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-015-9532-2_13.

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Di Castro, Carlo, Claudio Castellani, and Walter Metzner. "Conservation Laws in Normal Metals: Luttinger Liquid vs. Fermi Liquid." In NATO ASI Series, 251–62. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-1042-4_26.

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Cheng, Chunyan, and Wenjia Yu. "Analysis on Energy Conservation and Emission Reduction for Non-ferrous Metals Industry." In LISS 2012, 49–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-32054-5_9.

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Conference papers on the topic "Metals conservation"

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Salimbeni, Renzo, Roberto Pini, and Salvatore Siano. "Laser techniques in conservation of stone and metals." In SPIE Proceedings, edited by Aristides Marcano O. and Jose Luis Paz. SPIE, 2004. http://dx.doi.org/10.1117/12.590795.

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Velan, M., and K. Kayalvizhi. "Biosorption of heavy metals using fresh water algae." In 2011 International Conference on Green Technology and Environmental Conservation (GTEC 2011). IEEE, 2011. http://dx.doi.org/10.1109/gtec.2011.6167655.

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Sunk, Werner, and Nickolas J. Themelis. "Increasing the Quantity and Quality of Metals Recovered at Waste-to-Energy Facilities." In 14th Annual North American Waste-to-Energy Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/nawtec14-3197.

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The Integrated Waste Services Association (IWSA) compiles annual data of metal recovery by U.S. waste-to-energy (WTE) facilities. The 2004 IWSA survey showed that the U.S. WTEs processed 28.8 million short tons of municipal solid wastes (MSW) and recovered a total of approximately 706,000 tons of ferrous metal scrap, i.e. 2.45% of the MSW stream. The 2001 U.S.E.P.A. report on the characterization of the U.S. wastes reported that MSW contained 7.9% metals. However, some of this metal is collected separately at the household level and a small amount is non-ferrous metal. If it is assumed that the waste stream that is “disposed” in WTE facilities contains on the average 5% of ferrous metals, the ferrous input to all U.S. WTEs is estimated at approximately 1.44 million tons. On this basis, close to 0.7 million tons of metal are not recovered in WTEs. On the same basis, the ferrous metal lost in MSW that is landfilled (247 million tons in the U.S.) is estimated to be about 12 million tons per year. The non-recovered metal at WTEs entails both environmental and economic penalties. Therefore, an industry-university collaborative study is addressed to examining a) current metal recovery before and after combustion; b) potential for increasing metal value by physical processing of the metals recovered, either at WTEs or at a regional facility to be supplied by several WTEs; c) sampling and characterization procedures used in the WTE industry; and d) potential for physical and chemical characterization of different grades of WTE metal scrap. This paper focuses on the first two subjects — the current state of WTE metal recovery and the potential for increasing metal recovery. This work in progress is published in the NAWTEC 14 Proceedings with the objective of stimulating discussion and obtaining useful input from industry and academia concerned with the conservation of non-renewable resources.
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Toyohara, Tetsuhiko, Nobuyuki Okamoto, Takahiro Kawai, Takayoshi Kodama, and Hiroshi Shibasaki. "Environmental Research for Assessing the Impacts of Mining Seafloor Massive Sulfides in Japan." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49906.

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In Japan, the Ministry of Economy, Trade and Industry (METI) commenced a research and development (R&D) project on seafloor massive sulfide (SMS) deposits in Japan’s exclusive economic zone (EEZ) in the 2008 fiscal year. The project defines the plan for the commercialization of SMS within 10 years. Japan Oil, Gas and Metals National Corporation (JOGMEC) conducted the research under contract to METI. SMS deposits are widely distributed in the sea area surrounding Japan and are expected to become domestic metal resources. Since the SMS fields include hydrothermal ecosystems, which often host dense endemic animal communities, an adequate environmental impact assessment (EIA) and a conservation strategy to protect biodiversity are required for sustainable development. We outline an environmental framework that is intended to contribute to a global standard for assessing the environmental impacts of SMS exploration and mining.
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Kim, Woo-sik, Jong-hyun Baek, Choel-man Kim, and Young-pyo Kim. "A Study on the Residual Stress and Fracture Behavior of Pipeline Girth Welds Joining Pipes of Different Strength." In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31219.

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The following cases of girth welded region between pipelines having different base strength were considered. The pipeline shows different fracture behavior from girth welded pipeline between similar materials due to strength mismatch and residual stress distribution. Investigation about the residual stress distribution and fracture behavior of pipeline having girth welds of the differnet base metals (X70/X65 and X70/X42) with different material property has performed using finite element analysis. The effect of mismatched material property on girth weld region is negligible when shape of pipeline is similar. The assessment for occurance of crack on girth weld region with pipes with material property mismatched can be replaced by that of the similar pipes with low strength on the point view of conservation.
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Ma, Weigang, Tingting Miao, and Xing Zhang. "Thermal and Electrical Transport Characteristics of Polycrystalline Gold Nanofilms." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22328.

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The in-plane thermal and electrical conductivities of several suspended polycrystalline gold nanofilms with thickness of 20.0–54.0 nm have been measured simultaneously at 100–310 K. Both the thermal and electrical conductivities drop greatly compared to the corresponding bulk value, and the electrical conductivity reduction is larger. Fits to the temperature-dependent electrical conductivity confirm that the scattering of electrons by softened phonons is significant and cannot be reconciled with the classical size-effect model considering only surface and grain boundary. Taking into account the enhanced electron-phonon scattering, the electrical conductivity is well predicted over the whole temperature range and the obtained Debye temperature agrees well with the calculated value from the elastic continuum model. Furthermore, a new model on the thermal transport of metallic nanofilm is proposed based on the Energy Conservation Law, in which the electron-phonon scattering induced electron energy decrease is supposed to be counteracted by the phonon energy increase. The present model greatly improves the prediction of thermal conductivity in thin films compared to the corresponding result directly from electrical thermal analogy applied to bulk metals.
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Timmons, Dale M., and James H. Cahill. "Thermochemical Conversion of Asbestos Contaminated With Radionuclides and/or Other Hazardous Materials." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4705.

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Waste asbestos from abatement activities at Department of Energy (DOE) facilities is typically (as is most asbestos waste in the United States) disposed of in landfills. However, some of the asbestos from DOE facilities is contaminated with radionuclides, PCBs, metals regulated under the Resource Conservation Recovery Act (RCRA) and perhaps other regulated components that may require treatment instead of landfill disposal. Land disposal of waste is becoming less desirable to the public and does nothing to reduce the toxicity or the continued liability associated with these wastes. Methods for permanent destruction of these wastes are becoming more attractive as a final solution. One of the methods available for the destruction of asbestos-containing wastes is thermochemical conversion technology. ARI Technologies, Inc. was contracted by the National Energy Technology Laboratory (NETL) to conduct a technology deployment of its thermochemical conversion process. The purpose of the project was to: 1. “Destroy 10,000 lb. of asbestos-containing material (ACM), defined as asbestos fibers and binder by feeding it through an EPA-permitted asbestos destruction technology, such that the resultant materials are no longer considered to be asbestos in accordance with 40 CFR 61.155, Standard for Operation that Convert Asbestos-Containing Waste Materials Into Non-asbestos, and 2. Collect and analyse performance data for the deployed asbestos destruction technology.” In addition to the mandatory objectives, ARI conducted tests on the asbestos that were designed to evaluate the effectiveness of the technology for immobilization of toxic metals and surrogate radionuclides that are known to be present in DOE asbestos waste. This full-scale technology deployment demonstrated economical asbestos destruction and effective immobilization of lead, cadmium, barium and arsenic. Cerium oxide and non-radioactive cesium were also immobilized. Leach testing using EPA and DOE methods showed that leach performance surpassed regulatory criteria by at least one order of magnitude.
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Thierfeldt, Stefan. "Clearance Levels in Germany: How Do We Know They Are Right?" In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4803.

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Clearance levels (CL) in Germany have been implemented in the Radiation Protection Ordinance (RPO / Strahlenschutzverordnung StrlSchV) of July 2001 which transforms the EURATOM Basic Safety Standards (BSS) into national legislation. Separate clearance options exist e.g. for metals, building rubble, liquids, buildings, wastes and sites. Meanwhile, the CL have found extensive application at a number of operating nuclear installations in Germany, in particular at those under decommissioning or those which will enter the decommissioning phase soon. The CL are based on extensive studies and have been approved by the competent bodies. Yet there has been and is an ongoing discussion in the interested public whether the basis for the CL is correct. In order to establish a scientific basis for this discussion, a Working Group on Clearance within the German Commission on Radiological Protection (SSK) has been established and studies have been launched by the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety. Key issues comprise inter alia: • comparison of German and international CL (scope, values, method of their derivation, etc.); • review and update of German CL for clearance for disposal as a consequence of changes in the (conventional) waste law; • leaching behaviour of relevant radionuclides from cleared building rubble, especially for the long-term behaviour of radionuclides relevant in contaminated concrete of NPPs; • the possibility of multiple exposure for a single individual from various clearance options; • evaluation of the collective dose which may be caused by clearance in Germany and comparison with the reference value of 1 manSv/a.
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Koralewska, Ralf. "Resource Recovery: The Contribution of Energy-From-Waste Plants." In 20th Annual North American Waste-to-Energy Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/nawtec20-7023.

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Energy-from-Waste plants using grate-based systems have gained world-wide acceptance as the preferred method for the sustainable treatment of waste. Key factors are not only the reduction of waste volume and mass and the destruction or separation of pollutants but also the efficient production and use of energy (electricity, district heating/cooling, process steam), compliant disposal and the recovery of resources from combustion residues (e.g. metals, rare earths). International requirements relating to energy efficiency and materials recovery by means of thermo-recycling in Energy-from-Waste plants call for the continuing development and optimization of existing technologies and concepts. The technologies and processes for the recovery of reusable materials from dry-discharged bottom ash and from filter ash point to the key role that Energy-from-Waste plants are able to play in the efficient conservation of resources. It is primarily thermal treatment with dry discharge and subsequent processing of the bottom ash fractions that enables Energy-from-Waste plants to justify their status as universal recyclers. In addition to recovery of the energy inherent in the waste, the treatment of dry-discharged bottom ash is an important contribution to compliance with raw material and climate policies and to the promotion of closing the material cycle in general. Furthermore, dry bottom ash discharge represents a further step towards waste-free operation and “after-care-free” landfills. This paper documents the potential of Energy-from-Waste plants for the recovery of resources and provides examples of recent developments and large-scale implementations of innovative recovery technologies in Europe.
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Kaczkowski, Rebecca A., Bartosz A. Dajnowski, and Edward P. Vicenzi. "From Earth to Outer Space: Laser cleaning semiprecious quartz and a novel application for meteoritic metal." In Lasers in the Conservation of Artworks XI. Nicolaus Copernicus University Press, 2017. http://dx.doi.org/10.12775/3875-4.03.

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Reports on the topic "Metals conservation"

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Huang, Hui-Bin, Xiao-Li Chen, Bei-Lei Zhang, and Hui Lin. Conservative versus conventional oxygen therapy for critically ill patients: a Meta-analysis of randomized controlled trials. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, July 2020. http://dx.doi.org/10.37766/inplasy2020.7.0044.

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Wu, Shan-Chieh, Tissot Low, and Hsiang-Wen Lin. Mortality in Acutely Ill Adults with Conservative versus Liberal Oxygen Therapy: A Systematic Review and Meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, November 2020. http://dx.doi.org/10.37766/inplasy2020.11.0107.

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Long, Rui, Junying Tian, Shasha Wu, Yang Li, Xiuhua Yang, and Jun Fei. Clinical efficacy of surgical versus conservative treatment for multiple rib fractures: a meta-analysis of randomized controlled trials. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, June 2020. http://dx.doi.org/10.37766/inplasy2020.6.0001.

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Xiang, Xiao-Na. Platelet-Rich Plasma as a conservative treatment for partial-thickness rotator cuff tear and tendinopathy: A Systematic Review and Meta-analysis. INPLASY - International Platform of Registered Systematic Review Protocols, April 2020. http://dx.doi.org/10.37766/inplasy2020.4.0144.

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Chen, Jinlei, Dongliang Li, Ruirui Wang, Pengzhong Fang, Shuang Wang, and Xin Wang. Comparison of the efficacy of different conservative measures in lumbar spinal stenosis: A protocol for an overview of systematic review and network meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, September 2021. http://dx.doi.org/10.37766/inplasy2021.9.0025.

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Steel and Aluminum Energy Conservation and Technology Competitiveness Act of 1988: Annual report of the metals initiative for fiscal year 1996. Office of Scientific and Technical Information (OSTI), January 1998. http://dx.doi.org/10.2172/562611.

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