Results 21 to 30 of about 345,766 (300)

Formulation of Mesoporous Silica Nanoparticles for Controlled Release of Antimicrobials for Stone Preventive Conservation

Frontiers in Chemistry, 2020
The biotic deterioration of artifacts of archaeological and artistic interest mostly relies on the action of microorganisms capable of thriving under the most disparate environmental conditions. Thus, to attenuate biodeterioration phenomena, biocides can
Alessandro Presentato, Francesco Armetta, Alberto Spinella, Delia Francesca Chillura Martino, Delia Francesca Chillura Martino, Rosa Alduina, Maria Luisa Saladino   +6 more
doaj   +1 more source

Weathering Mechanisms of Porous Marl Stones in Coastal Environments and Evaluation of Conservation Treatments as Potential Adaptation Action for Facing Climate Change Impact

Buildings, 2023
This work presents the methodological approach followed for the study of the interaction of natural stone monuments with the local microclimate (exposure to RH, temperature alterations, wind, marine aerosol).
Anastasia Michalopoulou, Iason Markantonis, Diamando Vlachogiannis, Athanasios Sfetsos, Vassilis Kilikoglou, Ioannis Karatasios   +5 more
doaj   +1 more source

Conservation and restoration of the sandstone stele of Tia found at Deir el-Bahari: a field report [PDF]

Polish Archaeology in the Mediterranean
The paper describes the process of conservation and restoration of a severely damaged polychrome stone slab decorated in sunken relief. The slab was found broken into over 30 fragments in a Third Intermediate Period tomb on the third terrace of the ...
Kacper Prus
doaj   +1 more source

Some basic properties of infinite dimensional Hamiltonian systems [PDF]

, 1974
We consider some fundamental properties of infinite dimensional Hamiltonian systems, both linear and nonlinear. For exemple, in the case of linear systems, we prove a symplectic version of the teorem of M. Stone.
Chernoff, P. R., Marsden, J. E.
core   +1 more source

Interdisciplinary on-site evaluation of stone bunds to control soil erosion on cropland in Northern Ethiopia [PDF]

, 2007
Since two decades, stone bunds have been installed in large areas of the Tigray Highlands, Northern Ethiopia, to control soil erosion by water. Field studies were conducted to quantify the effectiveness, efficiency, side effects and acceptance of stone ...
D'AES, M, DECKERS, J, GEBREMICHAEL, D, GOVERS, G, HAILE, M, HAREGEWEYN, N, LEIRS, H, MOEYERSONS, J, NAUDTS, J, Nyssen, Jan, Poesen, Jean, VANCAMPENHOUT, K, YIHDEGO, G   +12 more
core   +2 more sources

ETHICS AND BASIC PRINCIPLES OF RESTORING HISTORICAL STONE MONUMENTS

Ochrona Dziedzictwa Kulturowego, 2019
The paper discusses ethical guidelines in relation to the conservation of historical monuments made of stone. The presented rules consider the building stone specificity and its susceptibility to various corrosion factors and the character of ...
Jadwiga W. Łukaszewicz
doaj   +1 more source

Silver-Doped TiO₂-PDMS Nanocomposite as a Possible Coating for the Preservation of Serena Stone: Searching for Optimal Application Conditions

Heritage, 2022
The main objective of this research is to determine the optimal application conditions of a newly synthesized multifunctional coating containing Ag-doped TiO2 nanoparticles when used as a possible protective agent for sandstone.
Marwa Ben Chobba, Maduka L. Weththimuni, Mouna Messaoud, Jamel Bouaziz, Rached Salhi, Filomena De Leo, Clara Urzì, Maurizio Licchelli   +7 more
doaj   +1 more source

Rock as a construction material: durability, deterioration and conservation

Materiales de Construccion, 1991
The different aspects related to the deterioration and conservation of stone, used as a construction material, are reviewed in this article. The petrographical characteristics and physical properties which control the durability of stone material are ...
Rosa M.ª Esbert, Modesto Montoto, Jorge Ordaz   +2 more
doaj   +1 more source

Facile Two-Step Deposition of Calcium Oxalate Film on Dolomite to Improve Acid Rain Resistance

Crystals, 2022
The deposition of a calcium oxalate layer on dolomite demonstrates potential application in stone culture heritage conservation. However, due to insufficient coverage and the presence of cracks, the film’s usefulness is restricted. In this investigation,
Jianrui Zha, Yaoqi Gu, Shuya Wei, Huarui Han, Feng Wang, Qinglin Ma   +5 more
doaj   +1 more source

Conservation work in Marina el-Alamein in 2018 (Polish–Egyptian Conservation Mission) [PDF]

Polish Archaeology in the Mediterranean, 2019
The article presents the program and results of continuous monitoring and preservation of historic architectural structures after the winter period at the site of Marina el-Alamein in Egypt, carried out by the Polish-Egyptian Conservation Mission.
Anna Selerowicz, Piotr Zambrzycki
doaj   +1 more source