Results 81 to 90 of about 464,947 (293)

Automatic interpretation of geometric information of discontinuities and its influence on the stability of highly-jointed rock slopes

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
The discrete fracture system of a rock mass plays a crucial role in controlling the stability of rock slopes. To fully account for the geometric shape and distribution characteristics of jointed rock masses, terrestrial laser scanning (TLS) was employed ...
Yaping Wang   +5 more
doaj   +1 more source

Temporal dynamics of stream fish assemblages and the role of spatial scale in quantifying change

open access: yesEcology and Evolution, 2020
Spatial grain of studies of communities is often based on arbitrary convention. Few studies have examined how spatial scaling of grain size affects estimates of compositional change over time, despite its broad implications. Fish assemblage structure was
Zachery D. Zbinden
doaj   +1 more source

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

open access: yesAdvanced Functional Materials, EarlyView.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh   +4 more
wiley   +1 more source

Ultrahigh Strength with Suppressed Flow Instability at Liquid Helium Temperature via Coherent Nanoprecipitation in a Medium‐Entropy Alloy

open access: yesAdvanced Functional Materials, EarlyView.
It is demonstrated that severe lattice distortion and coherent nanoprecipitates overcome the strength–ductility dilemma and mitigate discontinuous plastic flow (DPF) at 4.2 K. Such microstructural design enhances both thermal and athermal stress components, leading to exceptional mechanical performance.
Min Young Sung   +11 more
wiley   +1 more source

Bearing capacity of foundations on rock slopes intersected by non-persistent discontinuity

open access: yesInternational Journal of Mining Science and Technology, 2020
Rocks encountered in foundations of heavy structures are invariably intersected by discontinuities (joints). In the past, several studies have been performed by researchers to incorporate the effect of fully persistent joints in the assessment of the load-carrying capacity of rocks.
Divya Shaunik, Mahendra Singh
openaire   +3 more sources

PbCrO4/Pb Hybrid with Surface Unsaturated Metal Sites for Efficient CO2‐to‐Formate Reduction

open access: yesAdvanced Functional Materials, EarlyView.
An in‐operando electrochemically synthesized Vo‐rich PbCrO4/Pb hybrid exposes abundant unsaturated metal sites on PbCrO4 surface, which facilitates CO2 activation and stability of *OCHO intermediates. Simultaneously, the bulk Pb nanorod significantly enhances the conductivity of electrode for fast charge transport. The Vo‐rich PbCrO4/Pb electrocatalyst
Huai Qin Fu   +10 more
wiley   +1 more source

The role of founding elections in shaping the Romanian party system. Electoral clarity versus the failure of party in government (1990-2014)

open access: yesSfera Politicii, 2015
25 years after the first competitive elections, the Romanian party system still exhibits high levels of discontinuity between electoral competitions and governmental functioning.
Alexandra Iancu
doaj  

ROS‐Scavenging Multifunctional Microneedle Patch Facilitating Wound Healing

open access: yesAdvanced Healthcare Materials, EarlyView.
A reactive oxygen species (ROS) scavenging and immunomodulatory microneedle patch based on hyaluronic acid methacrylate (HaMA) and Flightless I (Flii)‐siRNA‐laden arginine functionalized poly (β‐amino ester)/alginate particles is developed for chronic wound healing applications.
Mahshid Kharaziha   +4 more
wiley   +1 more source

Visible Light Induced DLP‐Printed Oxygen‐Releasing TPMS Scaffolds Mitigate Early Hypoxia in Bone Defects

open access: yesAdvanced Healthcare Materials, EarlyView.
Visible light‐induced digital light processing 3D printed Primitive‐triply periodic minimal surface hydrogels embed CaO2–Si core–shell nanoparticles to deliver short‐term oxygen during the avascular window. The scaffolds maintain cytocompatibility, elevate osteopontin in vitro, and enhance calvarial defect repair in vivo without toxicity.
Anastasia B. Timoshenko   +11 more
wiley   +1 more source

Microphysiological Systems of Lymphatics and Immune Organs

open access: yesAdvanced Healthcare Materials, EarlyView.
This review surveys recent progress in engineering lymphatic microenvironments and immune organoids within microphysiological systems, emphasizing innovative strategies to recreate the biochemical and biophysical complexity of native lymphatic tissues.
Ishita Jain   +2 more
wiley   +1 more source

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