Results 101 to 110 of about 14,554 (295)

Shaping Ti3C2 MXene Nanospheres for Precision Near‐Infrared Photothermal Therapy

open access: yesAdvanced Functional Materials, EarlyView.
In this study, we report producing spherical MXenes via fs laser fragmentation of Ti3C2 flakes in liquid medium. The nanoparticles demonstrated pronounced light absorption and high photothermal conversion efficiencies of 68% and 63% under heating with NIR‐I and NIR‐II lasers, respectively.
Julia S. Babkova   +21 more
wiley   +1 more source

Analytical testing [PDF]

open access: yes
Analytical methods for combining flight acceleration and strain data with shake test mobility data to predict the effects of structural changes on flight vibrations and strains are presented.
Fabunmi, J. A.   +2 more
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

Human response to vibration in residential environments (NANR209), technical report 3 : calculation of vibration exposure [PDF]

open access: yes, 2011
The Technical Report 3 describes the research undertaken to develop a methodology by which human exposure to vibration in residential environments can be calculated.
Koziel, Z   +5 more
core  

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan   +8 more
wiley   +1 more source

Development of modified vibration test criteria for qualifying space vehicle components [PDF]

open access: yes
Simplified methods are described to estimate the test criteria of primary structures at component attachment points subjected to broadband random acoustic excitations.
Chang, K. Y., Kao, G. C.
core   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Vibroacoustic monitoring of bearing points failures in the driving system of the mining main ventilation fans

open access: yesArchives of Acoustics, 2014
Bearing points constitute the integral part of present-day machinery. They often limit in the service life of machines. As there is no access to them in the course of operation, diagnostic methods which can be applied without dismantling the machine, and
T. ZAKRZEWSKI
doaj  

Rotorcraft technology at Boeing Vertol: Recent advances [PDF]

open access: yes
An overview is presented of key accomplishments in the rotorcraft development at Boeing Vertol. Projects of particular significance: high speed rotor development and the Model 360 Advanced Technology Helicopter.
Dadone, Leo, Shaw, John, Wiesner, Robert
core   +1 more source

Modelo de vibrações de vigas de reforço utilizadas em plataformas ofshore [PDF]

open access: yes, 2004
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia MecânicaPlacas reforçadas por vigas são os principais componentes de estruturas de plataformas offshore, usadas na prospecção e ...
Sardá, Alexandre Augusto Pescador
core  

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