Results 201 to 210 of about 6,832,442 (230)

Study on Mechanical Properties and Synergistic Mechanism of Concrete Reinforced with Hybrid Basalt Fibers of Different Lengths. [PDF]

Materials (Basel)
Tao Y, Zhao C, Zhang Y, Zhu Y, Fang Y, Zhang R, Wang Q, Wu F, Yi Q.   +8 more
europepmc   +1 more source

Perceived importance and didactic difficulty of chemistry education: Insights from Czech teachers

The Curriculum Journal, EarlyView.
Abstract This empirical study examines how chemistry teachers in lower and upper secondary schools in the Czech Republic evaluate the content of the chemistry curriculum, focussing on its perceived importance and didactic difficulty. Based on a quantitative survey (N = 146), the study provides insight into the pedagogical content knowledge of ...
Jitka Lorenzová, Blanka Jirkovská, Martin Čapek Adamec, Jan Havlík, Petr Holzhauser, Daniela Nováková, Karel Němejc   +6 more
wiley   +1 more source

Influence of Technological Factors on the Interlayer Bond Strength of 3D-Printed Concrete. [PDF]

Materials (Basel)
Dvorkin L, Marchuk V, Makarenko R, Ribakov Y.   +3 more
europepmc   +1 more source

Study on the composite fracture characteristics of filling and reinforcing cracked rock mass after high temperature damage

Deep Underground Science and Engineering, EarlyView.
Cement infill shares compressive and shear stresses during loading, while interfacial friction hinders crack propagation and reduces stress concentration, improving the rock's load‐bearing capacity. Failure modes vary with crack inclination. Unfilled specimens show four modes.
Shihao Yuan, Qiang Sun, Jianjun Hu, Liwei Zhang, Jishi Geng   +4 more
wiley   +1 more source

Structural response of RC beam-column joints reinforced with smart alloys and polyvinyl alcohol fibers. [PDF]

Sci Rep
Alqarni AS, Alshannag MJ, Higazey MM.
europepmc   +1 more source

Nonlinear behavior of fixed-end RC beams with circular openings based on experimental and finite element analysis. [PDF]

Sci Rep
Aslanbay HH, Altun F.
europepmc   +1 more source

Structural behavior of reinforced concrete beams with longitudinal voids incorporating embedded steel tubes. [PDF]

Sci Rep
Fayed S, Ghalla M, Iskander Y, Bazuhair RW, Bin Mahfouz YM, Yehia SA.   +5 more
europepmc   +1 more source

Finite element analysis for assessing the flexural performance of CFRP-strengthened composite slabs without overextending reinforcing bars. [PDF]

PLoS One
Qi L, Lai Q, Liao J, Luo H, Yu X, Chen X, Mai Q, Yin X.   +7 more
europepmc   +1 more source

Generative adversarial networks for enhanced performance prediction of square CFST members under axial tension. [PDF]

PLoS One
Zhang H, Liu Y, Yan J.
europepmc   +1 more source

The Influence of Carbon Fiber Content and Strain Rate on the Mechanical Properties and Microscopic Damage Evolution of Recycled Aggregate Concrete. [PDF]

Materials (Basel)
Yuan C, Qi J, Xie Y, Bai W, Guan J, Liu J, Wang K, Li L.   +7 more
europepmc   +1 more source