XANES at the Cl K-edge as a relevant technique to reveal the iron archaeological artefact dechlorination treatments

2020 ◽  
Vol 35 (10) ◽  
pp. 2358-2368
Author(s):  
Solenn Reguer ◽  
Florian Kergourlay ◽  
Eddy Foy ◽  
Delphine Neff ◽  
Delphine Vantelon ◽  
...  

Degradation state evaluation, corrosion diagnosis methods' reliability, and also the development and improvement of conservation strategies are dramatically important to preserve iron archaeological objects.

Author(s):  
Matej Mičušík ◽  
Angela Kleinová ◽  
Mikuláš Oros ◽  
Peter Šimon ◽  
Tibor Dubaj ◽  
...  

The current volume brings together papers presented at the 2014 “Aluminum: History, Technology and Conservation” conference held at the Smithsonian Institution’s American Art Museum; the conference was followed by a hands-on workshop held at the National Air and Space Museum’s Steven F. Udvar-Hazy Center, which utilized the museum’s collections to illustrate aluminum’s use, conservation challenges, and repair techniques as well as to introduce participants to analytical techniques such as X-ray fluorescence for the identification of aluminum alloys and finishes. The three day international conference and two-day workshop were co-hosted with the Smithsonian Institution, the Foundation for the American Institute for Conservation and the International Council of Museums Committee for Conservation Metals Working Group. An unprecedented group of speakers, organizers, and sponsors made possible the first ever conservation conference solely dedicated to aluminum. The conference featured presentations by twenty-seven speakers from Europe, Asia, Australia, and North America who explored various aspects of degradation phenomena and conservation strategies for aluminum objects, from sculpture to aircraft, from nineteenth-century jewelry to underwater archaeological objects. The proceedings are divided into eight categories and represent the various themed sessions: the history and manufacturing of aluminum, corrosion and deterioration, characterization and identification, conservation of archaeological objects, conservation and use in contemporary art, conservation of architectural elements, surface treatments and inhibition, and preventative conservation.


2020 ◽  
Vol 642 ◽  
pp. 163-177 ◽  
Author(s):  
Y Niella ◽  
AF Smoothey ◽  
V Peddemors ◽  
R Harcourt

In the face of accelerating climate change, conservation strategies will need to consider how marine animals deal with forecast environmental change as well as ongoing threats. We used 10 yr (2009-2018) of data from commercial fisheries and a bather protection program along the coast of New South Wales (NSW), southeastern Australia, to investigate (1) spatial and temporal patterns of occurrence in bull sharks and (2) environmental factors affecting bull shark occurrence along the coast of NSW. Predicted future distribution for this species was modelled for the forecast strengthening East Australian Current. Bull sharks were mostly harvested in small to larger estuaries, with average depth and rainfall responsible for contrasting patterns for each of the fisheries. There was an increase in the occurrence of bull sharks over the last decade, particularly among coastal setline fisheries, associated with seasonal availability of thermal gradients >22°C and both westward and southward coastal currents stronger than 0.15 and 0.60 m s-1, respectively, during the austral summer. Our model predicts a 3 mo increase in the availability of favourable water temperatures along the entire coast of NSW for bull sharks by 2030. This coastline provides a uniquely favourable topography for range expansion in the face of a southerly shift of warmer waters, and habitat is unlikely to be a limiting factor for bull sharks in the future. Such a southerly shift in distribution has implications for the management of bull sharks both in commercial fisheries and for mitigation of shark-human interactions.


Author(s):  
M. Sidorova ◽  
◽  
Z. Zharnikov ◽  
S. Tataurov ◽  
L. Tataurova ◽  
...  

2014 ◽  
Vol 21 (6) ◽  
pp. 750-757
Author(s):  
Yu Yanbo ◽  
Wang Qunliang ◽  
Kell Shelagh ◽  
Maxted Nigel ◽  
V. Ford-Lloyd Brian ◽  
...  

2012 ◽  
Vol 30 (3) ◽  
pp. 285 ◽  
Author(s):  
Chang-Lin FENG ◽  
Zhen-Hai DENG ◽  
Dao-Xiong CAI ◽  
Tian-Gui WU ◽  
Hong-Yan JIA ◽  
...  

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