Results 201 to 210 of about 68,499 (259)

Statistical Reliability Analysis of Ultrasonic Velocity Method for Predicting Residual Strength of High-Strength Concrete under High-Temperature Conditions. [PDF]

Materials (Basel)
Kim W, Jeong K, Lee T.
europepmc   +1 more source

Flourishing through adventure learning: A (semi)cautionary tale

British Educational Research Journal, EarlyView.
Abstract Studies suggest that adventure learning can develop children's cognitive skills and promote social and emotional learning. However, evidence is needed as to whether the design of adventure learning—school‐based or external/residential—plays a role in that development/promotion, and whether learning gains are maintained.
Ben Willis, Sarah Reaney‐Wood
wiley   +1 more source

Breaking point: Identifying the factors that predict suspension from school

British Educational Research Journal, EarlyView.
Abstract School suspensions are associated with adverse educational and psychosocial outcomes, yet little is known about how structural disadvantage, relational factors, health behaviours, well‐being indicators and school‐level factors jointly predict suspension risk in England.
Stephanie Cahill, Roberto Vagnetti, Christopher Knowles, Emma Thornton, Qiqi Cheng, Neil Humphrey   +5 more
wiley   +1 more source

Cultivating Enduring Changes in Assessment Through a Life Sciences Community of Practice

Biochemistry and Molecular Biology Education, EarlyView.
ABSTRACT To provide instructors with personally relevant, discipline‐based training in assessment, the Community for the Assessment of Biochemistry and Molecular Biology Learning (CABL) conducted a series of six participant‐centered workshops between July 2020 and January 2024.
Ludmila Tyler, Peter J. Kennelly, Shelly Engelman, Jennifer Loertscher, Jennifer C. Bobenko, Yufeng Wei, Kirsten F. Block, Kathryn M. McCulloch, Vishwa D. Trivedi, Kimberly T. Lane, Kimberly J. Linenberger Cortes, Victoria Del Gaizo Moore, Daniel R. Dries   +12 more
wiley   +1 more source

Metal nanostructure‐coupled label‐free localized surface plasmon resonance biosensors for rapid and sensitive disease diagnosis

BMEMat, EarlyView.
LSPR biosensing enables rapid, sensitive, and low‐sample‐volume detection of biomarkers, with broad applications in diagnosing cancer, infectious, and chronic diseases. Advances in nanostructure design, micro/nanofabrication, and microfluidic integration have expanded the potential of LSPR sensors in biomedical diagnostics.
Zhaoxin Geng, Yunfei Sha, Jiongyan Yang, Hongru Yang, Xiao Liang   +4 more
wiley   +1 more source

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Minimum Reinforcement in High‐Strength Concrete

Journal of Structural Engineering, 1990
A dimensional analysis criterion is proposed to compute the minimum amount of reinforcement for high‐strength concrete members in flexure. Such an amount is assumed to be provided by the condition of simultaneous first cracking aand steel yielding. The fracture mechanics model utilized defines a brittleness number NP, which is revealed to be a measure ...
BOSCO, CRESCENTINO, CARPINTERI, Alberto, DEBERNARDI, PIER GIORGIO   +2 more
openaire   +2 more sources

Shrinkage of High-strength Concrete and High-flowability Concrete

HKIE Transactions, 2010
Throughout the years, a large amount of research on the shrinkage of normal concrete with cube compressive strength up to 60 MPa has been carried out. Relatively, the amount of research on the shrinkage of high-strength concrete and high-flowability concrete is not as much.
Wong, HHC, Kwan, AKH, Fung, WWS
openaire   +2 more sources

High Strength Concrete in the Precast Concrete Industry

PCI Journal, 1993
The precast concrete industry has, since its inception, been a recognized leader in the development and use of high strength concrete. Yet in recent years, whereas concrete strength in building applications has increased from 6000-8000 psi to 12,000-16,000 psi, there has not been a corresponding trend in the strength of precast concrete. As part of its
Charles W. Dolan, Robert W. LaFraugh
openaire   +1 more source

Fracture analysis of a high-strength concrete and a high-strength steel-fiber-reinforced concrete

Mechanics of Composite Materials, 2007
This paper addresses the use of R-curves to study the fracture behavior of high-strength concrete and steel-fiber-reinforced concrete subjected to crack ing in a three-point bending configuration. The R-curves are modeled through an effective approach based on the equations of linear-elastic fracture mechanics (LEFM), which relates the applied load to ...
openaire   +1 more source

Ultra High Strength Concrete

PCI Journal, 1967
A COMMISSION WAS ESTABLISHED ON METHODS OF ACHIEVING HIGH- STRENGTH CONCRETE TO FIND OUT WHETHER THE EFFECTIVE COMPRESSIVE STRENGTH OF CONCRETE CAN BE SUBSTANTIALLY INCREASED SO THAT PRESTRESSED CONCRETE MAY BECOME NOT MERELY AN ECONOMIC STRUCTURAL MATERIAL OF ATTRACTIVE CHARACTERISTICS, BUT A MATERIAL OF HIGH SPECIFIC STRENGTH AS WELL.
openaire   +1 more source