Results 41 to 50 of about 1,655,584 (304)

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Sociophysical Predictors of Facet Joint Arthritis in a Mountain Farming Community: A Computed-tomography-based Analytical Cross-sectional Study

open access: yesJournal of Orthopaedic Diseases and Traumatology
Background: Arthritis of the diarthrodial zygapophysial joints, located in the posterior column of the spine, commonly known as facet joint arthritis (FJA) is a leading cause of back pain and related disability.
Punit Tiwari   +2 more
doaj   +1 more source

Mountain Sound [PDF]

open access: yes, 2019
Undergraduate Graphic ...
Jones, Rachel
core   +1 more source

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

open access: yesAdvanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky   +3 more
wiley   +1 more source

Environmental Impacts of Mountain Biking: Science Review and Best Practices [PDF]

open access: yes, 2007
Mountain biking is still a relatively new activity whose environmental impact and contribution to trail degradation is poorly understood. As with all recreational pursuits, it is clear that mountain biking contributes some degree of environmental ...
Jeff Marion, Jeremy Wimpey
core  

Curvature‐Tuned Friction at Electrified Ionic Liquid Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
Graphene curvature plays a key role in friction electrotunability at single‐asperity contacts lubricated by ionic liquids. A 9 nm radius yields stronger tunability than larger radii, with distinct friction coefficients at low and high loads indicating a shift in the slippage plane.
Wei Song   +6 more
wiley   +1 more source

Et si le paysage était au service de l’éleveur ?

open access: yesProjets de Paysage, 2017
Based on interviews conducted over a four-year period following a meadow-flowering competition in the Pyrénées-Atlantiques region, this article studies the relationship between livestock farmers and the landscape in the light of discussions about the ...
Eva Bigando, Marion Charbonneau
doaj   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Mountain rescue [PDF]

open access: yesCurrent Biology, 2008
SummaryAustralia has won plaudits from conservationists by extending protection to some of its most spectacular natural habitats. Hannah Robertson reports.
openaire   +2 more sources

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

open access: yesAdvanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu   +5 more
wiley   +1 more source

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