Results 121 to 130 of about 65,797 (284)

Damage-imperfection indicators for the assessment of multi-leaf masonry walls under different conditions [PDF]

, 2018
The complexity of multi-leaf masonry walls suggests further researches on the dy- namic behaviour mainly characterized by incoherent response between the different layers.
Aldreghetti, Ivano, Baraldi, Daniele, Boscato, Giosuè, Cecchi, Antonella, Massaria, Lorenzo, Reccia, E., Tofani, Italo   +6 more
core  

An Archaeometallurgical Investigation on Some Archaeological Metal Finds From the Sasanian Site of Jahāngir, Western Iran

Archaeometry, EarlyView.
ABSTRACT Twelve metal artifacts from recent excavations at the Sasanian archaeological site of Jahāngir in western Iran have been analyzed. These items include both decorative and utilitarian artifacts. The samples were examined using micro‐X‐ray fluorescence (μ‐XRF), scanning electron microscopy with energy‐dispersive X‐ray spectroscopy (SEM‐EDS), and
Omid Oudbashi, Leila Khosravi, Morteza Habibzadeh   +2 more
wiley   +1 more source

“Flames Over Persepolis”: New Scientific Evidence Supporting Historical Perspectives

Archaeometry, EarlyView.
ABSTRACT This study investigates the burning of Persepolis Terrace, historically attributed to Alexander III in 330 bce. A review of classical accounts and excavation reports, combined with diagnostic surveys, confirms the fire's historicity and provides novel insights.
Maria Letizia Amadori, Ileana De Giuseppe, Fabrizio Frontalini, Luca Pellegrino, Richard W. Jordan, Pierfrancesco Callieri, Emad Matin, Alireza Askari Chaverdi, Hamid Fadaei, Valeria Mengacci, Fulvio Fantino   +10 more
wiley   +1 more source

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

Boreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo, Priyadarsi D. Roy, Benjamin Gwinneth, Irma G. Vargas‐Martinez, Alejandro A. Aragon‐Moreno, Roger Medina‐Gonzales   +5 more
wiley   +1 more source

Phycocyanobilin biosynthesis in Galdieria sulphuraria requires isomerization of phycoerythrobilin synthesized by bilin reductases

The FEBS Journal, EarlyView.
The biosynthesis of bilins, tetrapyrroles essential for light harvesting and sensing, is performed by specific enzymes (FDBRs). In Galdieria sulphuraria, both phycobiliprotein types bind phycocyanobilin, despite lacking the canonical synthesizing gene PCYA. Instead, PEBA and PEBB are encoded, producing phycoerythrobilin, proposed to be later isomerized
Federica Frascogna, Nathan C. Rockwell, Jana Hartmann, Julie M. Mudler, Nicole Frankenberg‐Dinkel   +4 more
wiley   +1 more source

Liberty Street School: Reuse and Rehabilitation Feasibility Report [PDF]

, 2012
It is recommended that the iron fire escapes on the east and west elevations be removed because they do not meet current fire codes as a proper means of egress from the building.
Deitz, Eric, Robinson, Arnold, Spears, Matt, Wikina, Nedith   +3 more
core   +1 more source

DESIGN OF QUALITY, DURABLE MORTAR FOR THE CONSERVATION OF HISTORIC MASONRY FABRICS

, 2005
The last twenty years have shown a steady increase in the number of conservation works to historic structures carried out in Ireland. Much of the repair and maintenance to historic masonry buildings have required pointing, rendering, capping and grouting with mortars.
openaire   +3 more sources

Lime-natural pozzolan conservation mortars: parameters that affect reactivity and strength [PDF]

, 2010
The natural pozzolans studied are commercial products and come from the volcanic islands of Milos and Kimolos, as well as North Greece mainland. The materials were characterised mineralogically and chemically by XRD and SEM/EDX respectively, while their reactivity with calcium hydroxide was studied through a pozzolanic activity test.
Eirini Ampatzioglou, Ioannis Karatasios, Belinda Colston, David Watt, Vassilis Kilikoglou   +4 more
openaire  

Compound‐Specific Stable Isotope Analysis Reveals Population‐Specific Differences in Chinook Salmon Trophic Level and Basal Resource Use in the Northeast Pacific

Fisheries Oceanography, EarlyView.
ABSTRACT Chinook salmon exhibit far‐flung and disparate population‐specific marine migrations that have made it difficult to assess their trophic ecology. In this study, we collected returning and resident subadult Fraser River Chinook salmon in 2018 and 2019 from population groups with different known run‐timings (spring, summer, and fall) and marine ...
Jacob E. Lerner, Brian P. V. Hunt
wiley   +1 more source

Non‐native pink salmon Oncorhynchus gorbuscha carcasses benefit native benthic macroinvertebrates

Journal of Fish Biology, EarlyView.
Abstract The invasion of the North Atlantic by pink salmon Oncorhynchus gorbuscha has raised concerns regarding their impact on coastal rivers. Although the influence of marine‐derived nutrients from returning adult O. gorbuscha on rivers in their native range has received much attention, the ecological consequences of invasive O.
Hui Wei, Gordon H. Copp, Rasmus B. Lauridsen, Tea Bašić, Phil I. Davison, John F. Murphy, James L. Pretty, Michał E. Skóra, Gabriela Zemelka, John Iwan Jones   +9 more
wiley   +1 more source