Results 81 to 90 of about 11,522 (217)

Red Fox Optimization-Based Estimation Algorithms for Splitting Tensile Strength of Basalt Fiber Reinforced Concrete

Journal of Applied Science and Engineering
To address the limited availability of literature on the splitting tensile strength (STS) of basalt fiber reinforced concrete (BFRC), it is necessary to create and evaluate approaches for predicting STS.
Xiao Wu, Daoyong Zhu, Qin Yan
doaj   +1 more source

Performance analysis of strengthening reinforced concrete beams under pure torsion using galvanized steel sheets: Experimental and numerical investigation

Structural Concrete, EarlyView.
Abstract Reinforced concrete (RC) beams can be subjected to torsion, and failure due to torsion is brittle and poses a significant risk to occupants. Moreover, strengthening of existing RC beams in torsion may be required due to the upgrade of the structures or as part of structural rehabilitation.
Ahmed Hamoda, Mizan Ahmed, Ahmad G. Saad, Aref A. Abadel, Saad A. Yehia   +4 more
wiley   +1 more source

Sequestration of CO2 by concrete and natural minerals - current status, future potential, and additional benefits

Circular Agricultural Systems
Concrete structures are some of the largest constructions in human civilization. Their manufacture releases CO2 into atmosphere, which is partially readsorbed by standing structures, and further release occurs when they are demolished.
Douglas A. Schaefer, Heng Gui, Jianchu Xu   +2 more
doaj   +1 more source

TRM‐to‐concrete interface bond without anchors: Combined experimental, analytical, and numerical modeling approach

Structural Concrete, EarlyView.
Abstract Textile reinforced mortar (TRM) systems have emerged as an effective alternative to conventional FRP strengthening solutions due to their compatibility with concrete substrates and favorable performance under adverse environmental conditions.
Ömer Mercimek, Özlem Çalışkan, Özgür Anıl, R. Tuğrul Erdem, Murat Yüncüler   +4 more
wiley   +1 more source

Characterisation of the Electrical Properties of Wastes Vitrified from Canarian Island Basaltic Quarries: Original Glasses and Glass-Ceramics

Ceramics
We obtained original glasses and glass-ceramics through the controlled melting and recrystallisation of basalt rocks extracted from several quarries in the Canary Islands.
Jesús Ma. Rincón, Pío Callejas, María Belén Almendro-Candel, Manuel Jordan   +3 more
doaj   +1 more source

The post‐fire recovery of soil seed banks along a fire severity gradient in an Australian threatened mesic forest

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Climate change has increased the likelihood of extreme events, increasing the number of days with dangerous fire weather conditions, resulting in fires with increased severity, frequency and extent.
Ruby Paroissien, Ryan Tangney, Catherine A. Offord, Mark Ooi   +3 more
wiley   +1 more source

An Overview of the Rock Art of AlUla: Tracing Changes in Content and Form Across 12,000 Years of Human History

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT Between 2018 and 2021, the Identification and Documentation of Immovable Heritage Assets (IDIHA) Project recorded over 19,000 rock art panels in the AlUla (al‐‘Ulā) region of north‐western Saudi Arabia. This study presents a chronological assessment of the corpus, drawing on superimpositions, datable motifs, inscriptions, and varnish formation,
Maria Guagnin, Laura Morabito, Hannah Leighton, Tahani AlMahmoud   +3 more
wiley   +1 more source

Late Antique Allāh: Ancestral Arabian Religion and the Monotheistic Zeitgeist

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT This essay addresses the ongoing scholarly tension between the monotheistic interpretations of late pre‐Islamic Arabian religion, pioneered by G. Hawting and P. Crone, and the traditional accounts of rampant Arabian polytheism found in later Islamic literary sources.
Ahmad Al‐Jallad, Hythem Sidky
wiley   +1 more source

Lithic analysis in African archaeology: Advances and key themes

Archaeometry, EarlyView.
Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski, Amanuel Beyin, Justin Pargeter   +2 more
wiley   +1 more source

What can lithics tell us about hominin technology's ‘primordial soup’? An origin of stone knapping via the emulation of Mother Nature

Archaeometry, EarlyView.
Abstract The use of stone hammers to produce sharp stone flakes—knapping—is thought to represent a significant stage in hominin technological evolution because it facilitated the exploitation of novel resources, including meat obtained from medium‐to‐large‐sized vertebrates. The invention of knapping may have occurred via an additive (i.e., cumulative)
Metin I. Eren, Stephen J. Lycett, Michelle R. Bebber, Alastair Key, Briggs Buchanan, Emma Finestone, Joseph Benson, Rebecca Biermann Gürbüz, Adela Cebeiro, Roman Garba, Anne Grunow, C. Owen Lovejoy, Danielle MacDonald, Erica Maletic, G. Logan Miller, Joseph D. Ortiz, Jonathan Paige, Justin Pargeter, Tomos Proffitt, Mary Ann Raghanti, Teal Riley, Jeffrey I. Rose, David M. Singer, Robert S. Walker   +23 more
wiley   +1 more source