Results 101 to 110 of about 552,793 (295)

Dual potential capacity model for short and deep reinforced concrete members containing steel fibers

Structural Concrete, EarlyView.
Abstract This study presents an analytical model for estimating the shear strength of short and deep steel fiber‐reinforced concrete (SFRC) members with a shear span‐to‐depth ratio less than 2.5. To this end, a dual potential capacity model (DPCM) is developed based on the demand‐capacity approach for evaluating the shear strength of SFRC beams that ...
Sun‐Jin Han, Deuckhang Lee, Hyunjin Ju, Dichuan Zhang   +3 more
wiley   +1 more source

Enhancing durability of steam‐cured precast concrete culverts using SCMs: A comparative study with delithiated beta spodumene

Structural Concrete, EarlyView.
Abstract Steam curing is commonly used to manufacture precast culverts to accelerate early strength development. This study investigates the effect of supplementary cementitious materials (SCMs) on the permeability properties of steam‐cured precast concrete culverts.
Saugat Humagain, Prabir Kumar Sarker, Faiz Uddin Ahmed Shaikh, Daksh Baweja   +3 more
wiley   +1 more source

On effect of superplasticizers and mineral additives on shrinkage of hardened cement paste and concrete

MATEC Web of Conferences, 2018
A model describing the variation in autogenous shrinkage and drying shrinkage of portland cement concrete, depending on the volume of aggregates and the shrinkage of hardened cement paste, is presented.
Nesvetaev Grigory, Koryanova Yulia, Zhilnikova Tatiana   +2 more
doaj   +1 more source

Antitrust for the fintech era

American Business Law Journal, EarlyView.
Abstract The emerging relationship between fintechs and banks has revealed antitrust's antiquation. At one time, scholars predicted that fintechs could democratize banking while providing a critical source of competition. But then banks began to acquire their digital rivals: about 900 acquisitions of fintechs have taken place since 2021.
Gregory Day, Lindsay Sain Jones
wiley   +1 more source

Chemical Stability and Bond Strength of Endodontic Sealers Exposed to Acidic, Alkaline and Protein‐Rich Environments: An In Vitro Investigation

Australian Endodontic Journal, EarlyView.
ABSTRACT The sealing performance of endodontic sealers may be influenced by environmental factors such as pH and blood‐derived proteins. This in vitro study evaluated the effects of pH variation and protein contamination on calcium ion (Ca2+) release and push‐out bond strength (BS) of a calcium silicate‐based sealer (Bio‐C Sealer) and an epoxy resin ...
Walter Raucci‐Neto, Ronaldo Artacho Venter, Antônio Secco Martorano, Victória Gabriela Louzada, Carlos Eduardo Saraiva Miranda, Elias Daniel Covas Rodrigues, Larissa Moreira Spinola de Castro‐Raucci   +6 more
wiley   +1 more source

Production of arsenical bronze using speiss on the Elephantine Island (Aswan, Egypt) during the Middle Kingdom (Middle Bronze Age) (c.2000–1650 BCE)

Archaeometry, EarlyView.
Abstract This paper presents the first direct evidence of the slags produced during the cementation alloying process of Cu with speiss inside ceramic crucibles, thus representing Cu alloying with As in Middle Kingdom Egypt. The settlement deposits from the Middle Bronze Age were excavated on Elephantine Island, within modern Aswan.
Jiří Kmošek, Martin Odler
wiley   +1 more source

Model‐Based Cost‐Effectiveness of Direct Restorations: Amalgam Dominates

Community Dentistry and Oral Epidemiology, EarlyView.
ABSTRACT Objectives A phase‐down of dental amalgam use has been mandated and the feasibility of its phase‐out in England by 2030 is being explored. Amalgam use in English National Health Service (NHS) care still predominates for posterior restorations, though access to this care is increasingly limited.
O. Bailey, S. J. Stone, G. Taylor, L. Ternent, C. R. Vernazza   +4 more
wiley   +1 more source

The Relationship between Molecular Structure and Foaming of Poly(ethylene glycol)—Poly(propylene glycol) Triblock Surfactants in Cementitious Materials

Buildings
This study investigates the relationship between the molecular structure and foaming of poly(ethylene glycol) and poly(propylene glycol) triblock copolymers in Portland cement pastes.
Mohammad Sadegh Tale Masoule, Ali Ghahremaninezhad   +1 more
doaj   +1 more source

Formaldehyde Emissions From 2‐Octyl Cyanoacrylate: Quantified Risk for Allergic Contact Dermatitis

Contact Dermatitis, EarlyView.
This study found that 2‐octyl cyanoacrylate skin adhesives release formaldehyde at levels up to 8.4× above EPA dermal thresholds and up to 2.41× above NIOSH airborne limits, producing exposures sufficient to provoke allergic and irritant contact dermatitis in patients.
Daniel S. Rouhani, Paul M. Villalobos, Steven Zeng, Reza Ghodsi, Kavana M. Sanjay, Simrin A. Singh, M. Mark Mofid   +6 more
wiley   +1 more source

Patch Test Results With the European Baseline Series, 2021/2022—Joint European Results of the ESSCAA and the EBSB Working Groups of the ESCD, and the GEIDACC

Contact Dermatitis, EarlyView.
ABSTRACT Background Patch test results obtained with the European Baseline Series (EBS) in its current version serve both contact allergy surveillance and (re‐)assessing the diagnostic value of EBS allergens. Objectives To present results of current EBS patch testing, obtained in 59 departments in 14 European countries during 2021 and 2022.
Wolfgang Uter, S. Mark Wilkinson, Olivier Aerts, Andrea Bauer, Leopoldo Borrego, Richard Brans, Timo Buhl, Heinrich Dickel, Aleksandra Dugonik, Francesca Larese Filon, Ana Giménez Arnau, Cataldo Patruno, Györgyi Pónyai, Stamatis Gregoriou, Steffen Schubert, Dagmar Simon, Luca Stingeni, Skaidra Valiukevičienė, Elke Weisshaar, Thomas Werfel, Margarida Gonçalo, Marie‐L. A. Schuttelaar, ESSCAA and EBSB ESCD Working Groups, and the GEIDACC, Birger Kränke, Alexander Navarini, Philip Spring, Ulrike Beiteke, Cecilia Dietrich, Sibylle Schliemann, Detlef Becker, Swen Malte John, Nicola Wagner, Dimitra Koumaki, Maddalena Napolitano, Anna Belloni Fortina, Francesca Larese Filon, Rosella Gallo, Thomas Rustemeyer, Radoslaw Spiewak, Maja Kalac Pandurovic, Tanja Kmecl, Mojca Simončič Godnič, Nada Kecelj, Philippa Cousen, Ella Dendooven, Juan Francisco Silvestre Salvador, José Manuel Carrascosa Carrillo, Mónica Munera Campos, Esther Serra Baldrich, Gemma Melé‐Ninot, Cristina Barrabés Torrella, David Pesqué, María Antonia Pastor Nieto, Francisco Navarro Triviño, Inmaculada Ruiz Gonzales, Enrique Gómez de la Fuente, Susana Córdoba Guijarro, Francisco Javier Ortiz de Frutos, Fátima Tous Romero, Tatiana Sanz Sánchez, Pablo Chicharro Manso, Marta Andreu Barasoain, Marta Elosua González, Araceli Sánchez Gilo, Paloma Sánchez‐Pedreño Guillén, Pedro Mercader‐García, Carmen Paredes Suárez, María Elena Gatica Ortega, José Juan Pereyra Rodríguez, Javier Miquel Miquel, Mercedes Rodríguez Serna, Violeta Zaragoza Ninet, Ricardo González Pérez   +73 more
wiley   +1 more source