Results 141 to 150 of about 69,716 (313)

Conductive Hydrogels for Exogenous Sensing and Cell Fate Control

open access: yesAdvanced Materials, EarlyView.
We engineer electrically conductive hydrogels by combining sulfated glycosaminoglycans with semiconducting polymers. These hydrogels bind bioactive proteins, including growth factors, whose release or retention can be modulated by low‐voltage stimulation. The hydrogels are also integrated as 3D channels in organic electrochemical transistors as part of
Teuku Fawzul Akbar   +15 more
wiley   +1 more source

Super‐Resolution Ultrasound Based Cell Tracking With Polymeric Nanobubbles

open access: yesAdvanced Materials, EarlyView.
This study presents a super‐resolution ultrasound platform for tracking cells in vivo. Biocompatible polymeric nanobubbles are used as highly echogenic intracellular labels. Following the injection of cells and microbubbles, ultrasound localization microscopy (ULM) can dynamically match the microvascular architecture and individual cell trajectories ...
Junlin Chen   +19 more
wiley   +1 more source

Estimation of Velocities in Ice Hockey Collisions

open access: yes, 2021
Concussions occur frequently as a result of tackles in ice hockey. Analysis of video material may provide an understanding of the relationship between the kinematics of collisions and the risk for injury. In this thesis, two video analysis methods were used to estimate the impact velocities of 22 ice hockey tackles that resulted in concussions.
El Borgi, Mouna, Norman, Mårten
openaire   +1 more source

Development of a Model for the Ice Scraping Process, October 1996 [PDF]

open access: yes, 1996
A laboratory study has been conducted with two aims in mind. The first goal was to develop a description of how a cutting edge scrapes ice from the road surface.

core  

Estimation of glacier ice extinction using long-wavelength airborne Pol-InSAR

open access: yes, 2013
In recent years there has been increased interest in using synthetic aperture radar (SAR) to study and monitor glaciers and ice sheets for glaciological and climate change research.
Sharma, Jayanti   +3 more
core   +1 more source

All‐Polyimide‐Mediated Liquid Metal Assembly on Aerogels for Breathable and Robust Electronic Skins

open access: yesAdvanced Materials, EarlyView.
An all‐polyimide‐mediated assembly strategy resolves the fundamental conflict between physiological breathability and electromechanical robustness in wearable electronics. By integrating a polyamic acid‐encapsulated liquid metal ink onto an ultralight polyimide aerogel, imidization‐induced contraction enables low‐temperature conductive activation and ...
Haijun Zhu   +18 more
wiley   +1 more source

Improved Antarctic-Wide Ice Flow Maps from Landsat 8 Imagery

open access: yes, 2019
Here, we present a methodology which can automatically calibrate, mosaic, and post-process Landsat images into displacement maps, resulting in seamless, continent-wide, ice velocity products.
Shen, Qiang   +7 more
core   +1 more source

A Dual‐Bioresponsive and Programmable Microneedle Matrix as a Bioinspired Coupler for Orchestrating Diabetic Bone Regeneration

open access: yesAdvanced Materials, EarlyView.
This project developed a smart bandage‐like patch (a microneedle array) for repairing diabetic bone damage. It intelligently senses signals from infection and inflammation, then releases its medicines in a specific, timed sequence: first an antibacterial agent, then an anti‐inflammatory agent, and finally growth factors.
Yu Wang   +10 more
wiley   +1 more source

THE RELATIONSHIP BETWEEN ICE JAM OCCURRENCE AND THE CROSS-SECTIONAL PROFILE OF ICE-COVERED RIVERS [PDF]

open access: yes, 2014
This study aims to clarify the relationship between ice jam occurrence and the cross-sectional profile of ice-covered rivers. We carried out hydraulic experiments in a test channel that reproduced an icecovered river.
伊藤, 丹   +4 more
core  

A decadal record of inter-annual surface ice flow from Pedersenbreen, Svalbard (2005-15)

open access: yes, 2019
This study presents the fundamental surface-ice-flow features of Pedersenbreen, a Svalbard valley glacier, from yearly high-precision GPS observations during 2005–2015. Data analysis shows that surface horizontal velocities ranged from 6.45 to 7.98 m a−1
Ai, Songtao   +3 more
core   +1 more source

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