Results 11 to 20 of about 7,638 (199)

Leak detection using instantaneous frequency analysis [PDF]

open access: yes, 2012
Leaking pipes are a primary concern for water utilities around the globe as they compose a major portion of losses. Contemporary interest surrounding leaks is well documented and there is a proliferation of leak detection techniques. Although the reasons
ghazali, mohd fairusham
core   +6 more sources

Full-orbit studies of wave-particle interaction on the Mega Ampere Spherical Tokamak [PDF]

open access: yes, 2021
Energetic particles with super-Alfv\'enic speeds could potentially drive Alfv\'enic instabilities in a magnetically confined plasma. The driven waves can influence the fast particle distribution function as energetic particles are redistributed or lost ...
Sun, Tiantian
core   +6 more sources

Burst firing is a neural code in an insect auditory system [PDF]

open access: yes, 2008
Various classes of neurons alternate between high-frequency discharges and silent intervals. This phenomenon is called burst firing. To analyze burst activity in an insect system, grasshopper auditory receptor neurons were recorded in vivo for several ...
Eyherabide, Hugo G.   +3 more
core   +1 more source

Suppression of Burst Oscillations in Racing Motorcycles [PDF]

open access: yes, 2013
Burst oscillations occurring at high speed, and under firm acceleration, can be suppressed with a mechanical steering compensator. Burst instabilities in the subject racing motorcycle are the result of interactions between the wobble and weave modes ...
Evangelou, SA   +6 more
core   +1 more source

A new scanning force microscope for temperature-controlled static and dynamic friction measurements, using an extended normal and lateral working range with high spatial resolution [PDF]

open access: yes, 2013
In this work, a new and improved SFM is presented. This SFM can measure many variables such as the individual dynamic and active temperature regulation of the sample and the cantilever, miscellaneous friction modes, x-, y-, z- linearization and an ...
Selbeck, Jörn
core   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Scallop swimming kinematics and muscle performance: modelling the effects of "within-animal" variation in temperature sensitivity [PDF]

open access: yes, 2005
Escape behaviour was investigated in Queen scallops (Aequipecten opercularis) acclimated to 5, 10 or 15 degrees C and tested at their acclimation temperature.
Bailey, DM   +4 more
core   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Mechanical Programming of PEGDA‐β‐CD Polyrotaxane‐Based Hydrogels via Host–Guest Molecular Recognition

open access: yesAdvanced Functional Materials, EarlyView.
A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen   +10 more
wiley   +1 more source

Hierarchical fiber bundle strength statistics [PDF]

open access: yes, 2012
Multi-scale modeling is currently one of the most active research topics in a wide range of disciplines. In this thesis we develop innovative hierarchical multi-scale models to analyze the probabilistic strength of fiber bundle structures.
Alsaeed Mahmoud Abdalrahman, Tamer
core   +1 more source

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