Results 81 to 90 of about 326 (101)

Characterization of Pseudomonas Aeruginosa Biofilms Grown on Different Substrates by Means of FT-IR Spectroscopy

open access: yesEngineering Proceedings
Fourier transform infrared spectroscopy (FT-IR) is a vibrational technique largely adopted for the study of bacterial biofilms. FT-IR is a non-destructive method allowing multiple analyses of the same biofilm. Pseudomonas aeruginosa represents a class of
Marianna Portaccio   +3 more
doaj   +1 more source

A Novel Underwater Acoustic Target Recognition Method Based on MFCC and RACNN

open access: yesSensors
In ocean remote sensing missions, recognizing an underwater acoustic target is a crucial technology for conducting marine biological surveys, ocean explorations, and other scientific activities that take place in water.
Dali Liu   +3 more
doaj   +1 more source

Spectral Denoising and Line Spectrum Extraction for Low-Frequency Underwater Acoustic Signals

open access: yesApplied Sciences
In Underwater Acoustic Target Recognition (UATR), accurately extracting spectral lines from time–frequency spectra in complex ocean environments faces three critical challenges: low-frequency spectral confusion, line spectrum and noise mixture, and a ...
Rui Xiang   +7 more
doaj   +1 more source

Ion-Energy Dependency in Proton Irradiation Induced Chemical Processes of Poly(dimethylsiloxane)

open access: yes, 2013
In this paper, we present a study of chemical changes in poly(dimethylsiloxane) (PDMS) induced by proton irradiation of various energy and fluence. It has been found that the forming products vary as the energy of the proton changes, which means that the
Szilasi, Szabolcs Z.   +2 more
core   +1 more source

Caracterização por FT-IR da superfície de borracha EPDM tratada via plasma por micro-ondas

open access: yesPolímeros, 2012
A superfície de uma borracha de etileno-propileno-dieno (EPDM) vulcanizada foi modificada via plasma por microondas, com gases Ar, Ar/O2, N2/O2 e N2/H2, tendo como objetivo melhorar as propriedades adesivas da superfície.
Renata P. dos Santos   +4 more
doaj  

Quantification of Aerospace Polymer Blends by Thermogravimetric Analysis and Infrared Spectrometry

open access: yesJournal of Aerospace Technology and Management, 2019
Ethylene-propylene-diene elastomer (EPDM) is employed as thermal insulation for rocket motors, as well as EPDM blends with ethylene vinyl acetate (EVA) have been used in the aerospace industry.
Paulo Santos Rigoli   +6 more
doaj  

El sindicato rural UATRE en el Alto Valle de Río Negro ante la reestructuración productiva del a fruticultura

open access: yes, 2008
En este artículo se desarrolla la presencia de la Unión Argentina de Trabajadores Rurales y Estibadores (UATRE) entre los trabajadores frutícolas y su relación con la reestructuración productiva del Alto Valle del Río Negro en las últimas décadas.
openaire   +1 more source

La contención del conflicto obrero contra el “neoliberalismo” en los ´90: El caso de la UATRE y los trabajadores agrícolas pampeanos

open access: yes, 2010
Fil: Villulla, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Económicas. Instituto de Investigaciones Económicas.
openaire   +1 more source

Oceanship: A Large-Scale Dataset for Underwater Audio Target Recognition [PDF]

open access: yes
The recognition of underwater audio plays a significant role in identifying a vessel while it is in motion. Underwater target recognition tasks have a wide range of applications in areas such as marine environmental protection, detection of ship radiated
Li, Zeyu   +7 more
core  

Corrosion inhibition of titanium by propolis in simulated oral cavity conditions : diploma thesis

open access: yes
Titanij (Ti) je zbog svoje visoke otpornosti na koroziju, izvanredne biokompatibilnosti, mogućnosti repasivacije i odgovarajućih mehaničkih svojstava postao standardni materijal za izradu dentalnih implantata.
Stipić, Božana
core   +2 more sources

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