Based on the Ocean Projection and Extension neural Network (OPEN) method, a novel approach is proposed to retrieve sea surface wind speed for C-band synthetic aperture radar (SAR). In order prove methodology with robust dataset, five-year normalized cross section (NRCS) measurements from advanced scatterometer (ASCAT), well-known side-looking sensor, are used train model. situ data direct buoy ...

Abstract Background Prior work described an approach for mapping the two-dimensional spatial distribution of biaxial residual stress in plate-like samples, combining multiple slitting measurements with elastic analysis. Objective This paper extends prior by applying a new variation method that uses cut mouth opening displacement (CMOD) rather than back-face strain (BFS). Methods First, CMOD is ...

Some geophysical calibration results on the level 1 ASAR WVI products are presented in the continuity of the investigations performed on the ERS1/2 SAR Wave Mode products. Investigations have been focussed on comparisons with co-located ECMWF winds. In particular, a calibration constant is tentatively derived using CMOD-IFREMER model function. Following standard azimuthal resolution losses over...

Four sets of alkali-activated aluminosilicate (AAAS) composites based on ceramic precursors were studied in terms their characterization by mechanical fracture parameters as a basis for considerations durability. AAAS made brick powder precursor and alkaline activator with various silicate moduli (Ms = 0.8, 1.0, 1.2, 1.4, 1.6) investigated. The differed the used filler: quartz sand or rubble. T...

In order to define a procedure for integrity assessment of pipelines and determining the fracture mechanics parameters, new type specimen with sharp notch, Pipe Ring Notched Tension (PRNT) specimen, is tested. The aim study determine influence geometry (cylindrical shape, as well number length stress concentrators) on parameters such force, Crack Mouth Opening Displacement CMOD, Tip CTOD J inte...

Structural health monitoring of concrete infrastructure is a critical concern for timely repair and maintenance. This study provides an innovative approach utilizing smart integrated with multi-walled carbon nanotubes (MWCNTs) to enhance electrical conductivity. The concrete’s self-sensing capability assessed through fractional change in resistance (FCR) measured using four-probe technique. Fou...

RESUME Since january 2003, ASAR Wave mode products have been systematically monitored. Quality assessment reveals that calibration issue still remains unsolved and unexpected computational error arising on WVS products. Furthermore, systematic regional and seasonal comparisons with collocated parameters of the numerical wave model WAM as provided by ECMWF exhibit a global good agreement with WA...