Results 121 to 130 of about 17,826 (249)

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

open access: yesAdvanced Science, Volume 13, Issue 27, 13 May 2026.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies   +14 more
wiley   +1 more source

Spot-on: Safe Fuel/Air Compression [PDF]

open access: yes, 2003
The emission of fuel vapors into the atmosphere from underground storage tanks at filling stations is a common occurrence in many parts the world. The conditions of the vapor in the tanks vary significantly over a 24 hour period such that evaporation and
Banks, Jeffrey   +9 more
core  

Bioinspired Hierarchical Architecture with Water Transport Channels for Strong Adhesion at the Sweating Interface

open access: yesAdvanced Science, Volume 13, Issue 28, 18 May 2026.
To address adhesion failure in sweaty epidermal electronics, this study proposes a cross‐species, multi‐scale biomimetic interface. By modeling staged wet adhesion, it integrates self‐regulating liquid bridges with directional drainage. This design ensures stable, high‐performance flexible sensing in complex physiological environments, offering a ...
Jieliang Zhao   +12 more
wiley   +1 more source

Excessive Ostial Stent Protrusion: Evaluation of Management Strategies and Clinical Outcomes of the Side Flap Technique

open access: yesCatheterization and Cardiovascular Interventions, Volume 107, Issue 6, Page 1884-1898, May 1, 2026.
ABSTRACT Backgrounds Accurate stent positioning in aorto‐ostial lesions remains challenging due to complex three‐dimensional anatomy, lack of optimal fluoroscopic projections, and high rates of geographic miss. Stent overhang impairs guide catheter re‐engagement and complicates future revascularization.
Gregor Leibundgut   +7 more
wiley   +1 more source

Team One Carbon Catcher Design Report [PDF]

open access: yes, 2020
Overview The burning of fossil fuels largely contributes to the increase of CO2 in the atmosphere. The US Department of Transportation alone contributed almost 6 million metric tons of carbon dioxide emissions in 2018 (EIA).
Brusa, Josh   +16 more
core  

Influence of Temperature on Seismic Moment as a Diagnostic for Crustal Permeability Creation

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Understanding what controls permeability is important in modulating crustal processes and the recovery of fuels and energy from the subsurface. Permeability may be created by the reactivation of fractures creating connected flow pathways that result in microearthquakes (MEQs).
Junpeng Wang   +7 more
wiley   +1 more source

Assessment and preliminary design of an energy buffer for regenerative braking in electric vehicles [PDF]

open access: yes
Energy buffer systems, capable of storing the vehicle energy during braking and reusing this stored energy during acceleration, were examined. Some of these buffer systems when incorporated in an electric vehicle would result in an improvement in the ...
Buchholz, R., Mathur, A. K.
core   +1 more source

Design and testing of liquid hydrogen-cooled, ultrahigh-speed ball bearings [PDF]

open access: yes, 1969
Large-bore, liquid hydrogen-cooled, ultrahigh-speed, rolling contact bearings of an optimum design allow optimization of large rocket engine turbopumps in which bearing speed is a limiting factor.
Butner, M. F., Wagner, D. A.
core   +1 more source

Friction in a hydraulic motor piston/cam roller contact lined with PTFE impregnated

open access: yes, 2009
The aim of this work was to test a new PTFE impregnated cloth material for use as a surface layer on the pistons of a hydraulic motor at the interface with the cam roller.
Lewis, R.
core   +1 more source

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