Results 191 to 200 of about 61,126 (293)

Investigation on hard‐rock breaking performance and auxiliary mechanism of picks assisted with both‐sided high‐pressure water jets

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper investigates the high‐pressure water jet‐pick combined rock‐breaking mode (HPC), which employs high‐pressure water jets to precut grooves on both sides of the picks. The rock‐breaking patterns and performance of the HPC method are obtained, and the auxiliary rock‐breaking mechanism of water jet grooving is revealed.
Jingjing Lu   +6 more
wiley   +1 more source

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

open access: yesDeep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei   +4 more
wiley   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Innovative Pediatric Simulator for Difficult Airway Management Training. [PDF]

open access: yesIEEE J Transl Eng Health Med
Mencarelli M   +7 more
europepmc   +1 more source

The “Magic” of Conflict: How Participatory Governance Can Enable Transformative Climate Adaptation

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT In many cases, addressing climate risks requires transformative climate adaptation (TCA) that goes beyond small adjustments to existing systems. While scholars increasingly argue that participatory governance is key and should embrace conflict rather than push for consensus to enable TCA, this assumption remains underexplored.
Dore Engbersen   +2 more
wiley   +1 more source

Biomimetic climbing robot design inspired by geckos and cats for rough wall applications. [PDF]

open access: yesSci Rep
Jodah MK   +5 more
europepmc   +1 more source

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