Results 11 to 20 of about 114,205 (309)

Processing and Characterisation of the Copper Treated Polylactic Acid and Cotton Fabrics: Thermophysiological Comfort Properties

open access: yesMedžiagotyra, 2014
The main objective of this study is to develop a novel copper treatment method and characterise the effect of treatment on the thermophysiological comfort properties of the treated fabrics. It is also aimed to analyse and evaluate the thermophysiological
Muhammet UZUN
doaj   +1 more source

Ultrasonic sensing using Yb3+/Er3+-codoped distributed feedback fibre grating lasers. [PDF]

open access: yes, 2005
Yb3+/Er3+-codoped distributed feedback (YbEr-DFB) fibre grating lasers have been investigated for the detection of ultrasonic Lamb waves generated in an aluminum plate. Two sensor configurations have been investigated. A path length imbalanced readout
Ye, Chen-Chun, Tatam, Ralph P.
core   +1 more source

Kinetics of Dissolution of Copper in Liquid Tin With Ultrasonic Waves [PDF]

open access: yesMaterials Research, 2020
Ultrasonic-assisted soldering, as a type of new welding method, is widely used in the field of electronic packaging. This research used the immersion method to study the dissolution behavior of copper in liquid tin and the growth of IMC at 513, 543, and ...
Xuemin Sun   +3 more
doaj   +1 more source

Direct measurement of ultrasonic activity on microbial metabolism and analysis of related uncertainty [PDF]

open access: yes, 2013
The scope of this work is to identify the relation that exists between the alterations of the bacterial metabolism and the exposition to an ultrasonic field (O'Leary et al. 1997, Piyasena et al. 2003, Brujan2004).
Erriu, Matteo
core   +1 more source

Impact of ultrasonic dispersion on the photocatalytic activity of titania aggregates

open access: yesBeilstein Journal of Nanotechnology, 2015
The effectiveness of photocatalytic materials increases with the specific surface area, thus nanoscale photocatalyst particles are preferred. However, such nanomaterials are frequently found in an aggregated state, which may reduce the photocatalytic ...
Hoai Nga Le   +5 more
doaj   +1 more source

Variáveis relacionadas à estabilidade de complexos organo-minerais em solos tropicais e subtropicais brasileiros Selected soil-variables related to the stability of organo-minerals complexes in tropical and subtropical brazilian soils

open access: yesCiência Rural, 2007
A estabilidade de complexos organo-minerais é uma característica importante quanto à química e física de solos tropicais e subtropicais. O objetivo deste estudo foi identificar variáveis relacionadas à estabilidade de complexos organo-minerais, avaliada ...
Alberto Vasconcellos Inda Junior   +5 more
doaj   +1 more source

Ultrasonic energy in endoscopic surgery

open access: yesYonsei Medical Journal, 1999
The Harmonic Scalpel made by Ultracision is a system for endoscopic cutting. The energy source is vibration. The power box is attached to a forceps or blade, and the vibrational frequency of the blade approaches 55,500 cycles/second. This causes a knife-like action of the blade through tissue, with enough heating to create coagulation of small vessels.
S J, Lee, K H, Park
openaire   +2 more sources

MOSAIC: An integrated ultrasonic 2-D array system [PDF]

open access: yes, 2007
An investigation into the development of an ultrasound imaging system capable of customization for multiple applications via the tessellation of in-system programmable scalable modules, or tiles, is presented here.
D.R.S. Cumming   +9 more
core   +1 more source

Interaction of Alginate/Copper System on Cotton and Bamboo Fabrics: The Effect on Antimicrobial Activity and Thermophysiological Comfort Properties

open access: yesMedžiagotyra, 2013
Antimicrobialagent treated materials have been widely used clinically as medical devices and articles, in which the active substances, such as antimicrobial molecules, are present on or in the matrix of the surface of the devices and articles.This study ...
Muhammet UZUN
doaj   +1 more source

Effect of slit dual-frequency ultrasonic emulsification technology on the stability of walnut emulsions

open access: yesUltrasonics Sonochemistry, 2022
A highly hygienic walnut emulsion beverage was prepared by using a slit dual-frequency emulsification technique. The optimal ultrasonic parameters were studied as a model system: the ultrasonic time of 50 min, the ultrasonic power density of 260 W/L, and
Ningning Ouyang   +6 more
doaj   +1 more source

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