Results 141 to 150 of about 5,396 (236)

Identification of invisible damage in prestressed concrete bridges—A demonstrator case using coda wave interferometry

open access: yesStructural Concrete, EarlyView.
Abstract During their life cycle, prestressed concrete bridges are prone to wire breaks of their tendons due to fatigue or stress corrosion cracking. However, not all structures show visible cracking on the surface, which would provide timely warning of otherwise invisible damage. Brittle failure may occur.
Noah Sträter   +3 more
wiley   +1 more source

Dynamics of coffee leaf rust (<i>Hemileia vastatrix</i>) in Puerto Rico: associations with season, cultivar, altitude, and hyperparasites. [PDF]

open access: yesFront Plant Sci
Mariño YA   +5 more
europepmc   +1 more source

Experimental and analytical investigations on the effect of steel fibers on the crack behavior and strength of dapped‐end connections

open access: yesStructural Concrete, EarlyView.
Abstract Reinforced concrete (RC) dapped‐end connections feature a sharp re‐entrant corner subjected to high stress concentrations, leading to wide cracks under service loads and potential durability issues such as reinforcement corrosion. Effective crack control is therefore essential in the design of new dapped‐end connections. Steel fiber reinforced
Karin Yu   +3 more
wiley   +1 more source

Fe<sup>2+</sup> disproportionation within iron-rich alkaline vent analogues reveals proto-bioenergetic systems. [PDF]

open access: yesNat Commun
Truong C   +10 more
europepmc   +1 more source

On the Phase Width of MgZn2/KHg2‐Type Intermetallics AIIMg2−xZnx (A = Ca, Sr, Ba) and the New Compounds (Sr/Ba)11Mg16Zn6 and Ba6Mg2.8Zn8.2

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The continuous, but obviously geometrically limited Mg↔Zn substitution in members of the two basic structures types of intermetallics, the KHg2‐type dizincides, and the MgZn2/Laves‐type dimagnesidesof Ca, Sr, and Ba exhibit a large phase widths for CaMg2 only. Instead, the larger alkaline‐earth elements form the “optimized” complex compounds A11Mg16Zn6
Katharina Köhler   +4 more
wiley   +1 more source

Contextual cues do not facilitate spontaneous face recognition

open access: yesBritish Journal of Psychology, EarlyView.
Abstract Most studies examining face recognition have used explicit recognition tasks, ignoring our ability to spontaneously recognize familiar faces when they are unexpected. The current study examined spontaneous recognition of a minor and major actor from the TV show Friends, and the extent to which spontaneous recognition is facilitated by ...
Kristen A. Baker   +2 more
wiley   +1 more source

The Early Upper Palaeolithic open‐air site of Friedrichsdorf‐Seulberg, Germany, in the context of the northern central European Aurignacian

open access: yesBoreas, EarlyView.
Our knowledge of the Early Upper Palaeolithic occupation in northern central Europe is very limited, and recent research at the open‐air site of Friedrichsdorf‐Seulberg in Hesse, Germany, provides important new information on the Aurignacian. The site is rather small (26.5 m2) and spatial analysis identified a central hearth with two associated ...
Tilman Böckenförde   +5 more
wiley   +1 more source

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