Zobrazeno 1 - 10
of 62
pro vyhledávání: '"David C. Emmony"'
Publikováno v:
Journal of Cultural Heritage. 4:271-275
A significant issue in the current research on laser cleaning studies is the discoloration effect that the laser radiation may cause to many medieval pigments. Towards a thorough study of this effect, specially prepared limestone plates coated with l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac614797747a3f3ae8a7e06d5a69bdcf
https://doi.org/10.1016/s1296-2074(02)01207-4
https://doi.org/10.1016/s1296-2074(02)01207-4
Publikováno v:
The Journal of the Acoustical Society of America. 110:1822-1827
In an attempt to shed more light on the complex process by which cavities interact destructively with rigid boundaries we consider experimentally the interaction of a laser-generated bubble with a nearby solid boundary. To determine the stresses the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f18d81d9431c4619009c128743a5d80
https://doi.org/10.1121/1.1397358
https://doi.org/10.1121/1.1397358
Publikováno v:
Applied Surface Science. 173:252-261
This study is concerned with the effect of infrared Q-switched laser radiation on four of the most commonly used medieval pigments. Vermilion, red lead (minium), white lead and yellow lead (massicot) have been irradiated with Nd:YAG laser radiation a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ecddc2adb3b18ab61cac9403e57ec43
https://doi.org/10.1016/s0169-4332(00)00909-0
https://doi.org/10.1016/s0169-4332(00)00909-0
Autor:
David C. Emmony, Teresa Cianfanelli, Paolo M Zanettaa, Daniel Albrecht, Alfredo Aldrovandi, Patrizia Riitano, Marco Franchi, Oriana Sartiani, Alfredo Carlo Lucia
Publikováno v:
Journal of Cultural Heritage. 1:S331-S335
The aim of this work was to use non-destructive optical measurement techniques to assess the conservation state of ancient Italian paintings and to experiment outside of the laboratory with the most recent ESPI (electronic speckle pattern interferome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45e74c5c1dc9e2a095b72a9766323a62
https://doi.org/10.1016/s1296-2074(00)00146-1
https://doi.org/10.1016/s1296-2074(00)00146-1
Autor:
David C. Emmony, Paraskevi Pouli
Publikováno v:
Journal of Cultural Heritage. 1:S181-S188
Very often traces of paint and pigment have been found on medieval sculpture. Presently, little is known about the effects of laser radiation on polychromy. It is important to protect and preserve these traces during any cleaning or restoration proce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9d1ae3c577bfd00832a53ba9db96e1c
https://doi.org/10.1016/s1296-2074(00)00143-6
https://doi.org/10.1016/s1296-2074(00)00143-6
Publikováno v:
The Journal of the Acoustical Society of America. 107:3065-3072
In this paper new observations of a laser-generated cavitation bubble interacting with an inertial boundary are presented. Employing schlieren photography techniques and a thin film transducer placed on the surface of the boundary, the pressure stres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d419361f971a4195091e8dbd96e1b445
https://doi.org/10.1121/1.429335
https://doi.org/10.1121/1.429335
Publikováno v:
Journal of Fluid Mechanics. 380:339-361
Vapour cavities in liquid flows have long been associated with cavitation damage to nearby solid surfaces and it is thought that the final stage of collapse, when a high- speed liquid jet threads the cavity, plays a vital role in this process. The pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c0ed35b3065d7d9d2b1351d5cdc876d
https://doi.org/10.1017/s0022112098003589
https://doi.org/10.1017/s0022112098003589
Publikováno v:
Journal of Physics D: Applied Physics. 32:1612-1617
In this work we consider the interaction of a laser-generated cavitation bubble with a solid boundary for the case of a cavity created very close to the wall. Using a combination of a thin-film transducer placed on the surface of the boundary and sch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c43ee3aa279e13a5db690080d02966b1
https://doi.org/10.1088/0022-3727/32/14/311
https://doi.org/10.1088/0022-3727/32/14/311
Publikováno v:
Ultrasonics. 36:689-693
A technique for producing strong focused negative pressure waves in water is described. The method is based on the phase inversion of the planar shock wave from an electromagnetic transducer. This is achieved by reflection and focusing at a pressure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7481463b01eb416267fe7957857ca8d4
https://doi.org/10.1016/s0041-624x(97)00118-2
https://doi.org/10.1016/s0041-624x(97)00118-2
Publikováno v:
Ultrasonics. 36:559-563
A pulse from a Nd:YAG laser is used to generate a cavitation bubble near a plane solid boundary in deionised water. The different stages in the collapse of the bubble are followed using a high speed photographic technique involving sensitive Schliere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28c983664ce5eac0228a3ede444d50f7
https://doi.org/10.1016/s0041-624x(97)00110-8
https://doi.org/10.1016/s0041-624x(97)00110-8