Results 191 to 200 of about 17,616 (304)

A new lungfish (Ceratodontoidei, Dipnoi) from the Early Jurassic of Chongqing, China. [PDF]

Sci Rep
Luo B, Xu GH, Ren TC, Ma XY, Wang QD, Qiao T, Tan FT, Tan Y, Wei GB.   +8 more
europepmc   +1 more source

Evaluations of the effectiveness of the near‐surface mounted steel materials in strengthening short RC wall‐like columns with openings

Structural Concrete, EarlyView.
Abstract In practice, reinforced concrete (RC) wall‐like columns often have openings to facilitate building services, which creates stress concentrations around the opening, resulting in the weakening of their load‐carrying capacity. This study proposes innovative strengthening methods using near‐surface mounted (NSM) incorporating steel materials to ...
Ahmed Hamoda, Mizan Ahmed, Mohamed Ghalla, Ahmad G. Saad, Aref A. Abadel   +4 more
wiley   +1 more source

Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton. [PDF]

PLoS One
Chang YG, Qing SY, Dai MY, Chen SH.
europepmc   +1 more source

Performance enhancement of reinforced concrete columns using stainless steel and galvanized steel plates: Experimental and numerical investigation

Structural Concrete, EarlyView.
Abstract This study introduces an innovative approach to strengthening defected reinforced concrete (RC) columns using externally bonded stainless steel and galvanized steel plates. Unlike conventional strengthening methods, this technique replaces traditional transverse stirrups with steel sheets, providing enhanced confinement and ductility.
Ahmed Hamoda, Khaled Sennah, Ramy I. Shahin, Aref A. Abadel, Mizan Ahmed, Mohamed Ghalla   +5 more
wiley   +1 more source

From trace to trace maker: Oligocene-Miocene coprolites of southern Poland and their potential producers. [PDF]

PeerJ
Brachaniec T, Środek D, Salamon M, Bugajski M, Duda P, Danielak A, Janiszewska M, Sadlok G, Kuśnierczyk W.   +8 more
europepmc   +1 more source

Behavior of manufactured sand and recycled coarse aggregate concrete‐filled steel tubular stub columns with circular section

Structural Concrete, EarlyView.
Abstract Accelerated urbanization has intensified environmental concerns due to excessive natural resource consumption and construction waste generation. Circular concrete‐filled steel tube (CFST) columns incorporating manufactured sand recycled coarse aggregate (MS‐RCA) concrete have emerged as an innovative composite element offering notable ...
Minsheng Guan, Qi Chen, Gang Wang, Aiguo Xiong, Ying Wang, Le Li, Anne W. M. Ng, Qing Quan Liang   +7 more
wiley   +1 more source

The NW extension of the Nahavand Fault along the Main Recent Fault, west Iran. [PDF]

PLoS One
Alipoor R, Aghayani E.
europepmc   +1 more source

Optimizing the embodied carbon of the product stage of reinforced concrete columns

Structural Concrete, EarlyView.
Abstract The construction sector faces urgent sustainability challenges. This study quantifies the potential for reducing embodied carbon in reinforced concrete columns by optimizing concrete strength and reinforcement ratios. The interplay between concrete compressive strength (20–90 MPa), reinforcement percentages (0.2%–2.0%), and embodied carbon ...
Robine Calixte, Jean Michel Torrenti, Mélanie Chatenet   +2 more
wiley   +1 more source

A dataset and benchmark of carbonate thin-section images for deep learning. [PDF]

Sci Data
Li K, Song J, Zhang Z, Ren S, Lan Y, Yang D, Li Z, Liu S, Yan C, Jin X, Yang S, Guo J.   +11 more
europepmc   +1 more source

Geopolymers as a Sustainable Chemical Platform: From Building Materials to Advanced Functional Applications

The Chemical Record, EarlyView.
Geopolymers are presented as a chemically programmable platform whose properties emerge from activation chemistry, nanoscale disorder, and interfacial design. The review highlights sustainability challenges, the shift toward nanoengineered and hybrid systems, and the rise of halloysite‐based architectures enabling tunable structures across scales for ...
Martina Maria Calvino, Lorenzo Lisuzzo, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara   +4 more
wiley   +1 more source