Zobrazeno 1 - 10
of 27
pro vyhledávání: '"David Erhardt"'
Publikováno v:
Applied Physics A. 79:247-252
In the fall of 2001, anthrax-contaminated letters were sent to public figures in the United States. Chemical and radiation treatments were employed to decontaminate exposed buildings, objects, and materials. These treatments are effective, but potent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52435175258f7d121a9eff1297fafa71
https://doi.org/10.1007/s00339-004-2511-7
https://doi.org/10.1007/s00339-004-2511-7
Publikováno v:
Studies in Conservation. 45:65-69
Processes that occur in oil paints after the initial drying stage include the hydrolysis of glyceride ester linkages, the formation of soaps, and the volatilization of low molecular weight compounds. The nature, amounts and distribution of the solubl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59cd55bd88362e076a9a471939717e82
https://doi.org/10.1179/sic.2000.45.supplement-1.65
https://doi.org/10.1179/sic.2000.45.supplement-1.65
Autor:
David Erhardt, Tania F.M. Oudemans
Publikováno v:
Studies in Conservation. 41:137-142
The chemical characterization of organic residues found in association With ceramic vessels can provide direct information on original vessel use and on diet and cooking practices of people in the past. Major improvements in analytical instrumentatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6de2744217563981c797f353ad4e3328
https://doi.org/10.1179/sic.1996.41.supplement-1.137
https://doi.org/10.1179/sic.1996.41.supplement-1.137
Publikováno v:
Studies in Conservation. 39:32-38
The determination of an optimal value of relative humidity for the preservation of museum objects is more complex than for other environmental factors. Relative humidity affects the preservation of objects in many ways, and effects vary for different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ba473a8257ba7d7a508d22e2ccba502
https://doi.org/10.1179/sic.1994.39.supplement-2.32
https://doi.org/10.1179/sic.1994.39.supplement-2.32
Autor:
W. David Erhardt, Jia-sun Tsang
Publikováno v:
Journal of the American Institute for Conservation. 31:87-94
Some current research, in the authors' laboratories and elsewhere, on the effects of solvent and aqueous-based cleaning systems is reviewed. The application of varnish is considered in terms of the exposure of the paint film to the solvents used to d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2418a22efffcaaa0c708d58041344b21
https://doi.org/10.1179/019713692806156457
https://doi.org/10.1179/019713692806156457
Autor:
David Erhardt, Jia-sun Tsang
Publikováno v:
Studies in Conservation. 35:93-97
This article examines the effects of solvents on oil paint films. Samples of oil paint films five, 10 and 50 years of age, containing lead white, raw sienna, vermilion or a red azo dye as pigments, were exposed to the solvents hexane, toluene, aceton
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72c554f6c390b882476f5a7317a64c9e
https://doi.org/10.1179/sic.1990.35.s1.021
https://doi.org/10.1179/sic.1990.35.s1.021
Autor:
Charles S. Tumosa, David Erhardt
Publikováno v:
Restaurator. 26
On a procede a une evaluation des quantites de sucres solubles, comme le glucose et le xylose, dans des papiers dont la date de fabrication s'etale sur une periode de cinq siecles. On a extrait des echantillons du bord du papier non imprime qui ont e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f19813a14d5e5d20374da094d8ed4c8
https://doi.org/10.1515/rest.2005.26.3.151
https://doi.org/10.1515/rest.2005.26.3.151
Publikováno v:
ACS Symposium Series ISBN: 9780841238695
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8cd3987a0e53b7c5446b9cf90b43fa0
https://doi.org/10.1021/bk-2004-0875.ch020
https://doi.org/10.1021/bk-2004-0875.ch020
Publikováno v:
MRS Proceedings. 852
The stiffening and embrittlement of oil paints over time has been a real concern for those responsible for the long term care and preservation of paintings. This paper examines the effects of time, pigments, relative humidity (RH), temperature and so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f3bed8428bd7e99fea22763cff87223
https://doi.org/10.1557/proc-852-oo3.1
https://doi.org/10.1557/proc-852-oo3.1