Dynamics of fractional-order multi-beam mass system excited by base motion
Sign Up to like & getrecommendations! Published in 2020 at "Applied Mathematical Modelling"
DOI: 10.1016/j.apm.2019.11.055
Abstract: Abstract Vibration of structures induced by some external sources of excitation is a common phenomenon in many engineering fields such as civil engineering, machinery and aerospace. In most cases, it is desirable to suppress such… read more here.
Keywords: multi beam; fractional order; system; system excited ... See more keywords
Optimization of EH Multi-beam Structures for Freight Car Vibration
Sign Up to like & getrecommendations! Published in 2018 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2018.04.020
Abstract: Abstract Autonomous sensors (AS) became a suitable alternative to the constant monitoring of mechanical systems, preventing unexpected failure of the components and resulting in significant savings in maintenance costs and time. Regarding railroad transportation, these… read more here.
Keywords: multi beam; freight cars; vibration; optimization multi ... See more keywords
A case study on swell correction of Chirp sub-bottom profiler (SBP) data using multi-beam echo sounder (MBES) data
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Geophysics"
DOI: 10.1016/j.jappgeo.2017.08.001
Abstract: High-resolution marine seismic data acquisition and subsequent analyses are highly influenced by sea conditions, directly affecting data quality and interpretation. Traditional swell effect correction methods are effective in improving reflector continuity; however, they are less… read more here.
Keywords: mbes data; bottom; correction; sbp data ... See more keywords
Multi-degree-of-freedom beam rotation based on multi-beam vector superposition
Sign Up to like & getrecommendations! Published in 2022 at "Optics Communications"
DOI: 10.1016/j.optcom.2021.127402
Abstract: Abstract A method for the generation of tunable multi-degree-of-freedom rotations of vector beams on demand along a propagation direction is theoretically proposed. This generation can be achieved by a suitable vector superposition of three monochromatic… read more here.
Keywords: multi beam; multi degree; vector superposition; rotation ... See more keywords
Thermo-chemical microstructuring of thin metal films using multi-beam interference by short (nano- & picosecond) laser pulses
Sign Up to like & getrecommendations! Published in 2017 at "Thin Solid Films"
DOI: 10.1016/j.tsf.2017.05.010
Abstract: Abstract Interference of laser beams with high pulse energy opens an opportunity of direct oxidation of surfaces over large areas. It is important to confirm that the single ultrashort laser pulse irradiation is able to… read more here.
Keywords: laser; interference; thermo chemical; multi beam ... See more keywords
Fractal modes and multi-beam generation from hybrid microlaser resonators
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-04945-8
Abstract: Fractals are ubiquitous in nature, and prominent examples include snowflakes and neurons. Although it has long been known that intricate optical fractal patterns can be realized with components such as gratings and reflecting spheres, generating… read more here.
Keywords: modes multi; generation hybrid; fractal modes; generation ... See more keywords
Multi-beam array stitching method based on scanning Hartmann for imaging quality evaluation of large space telescopes
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-25632-0
Abstract: To test large-aperture space optical systems in a simple and highly efficient manner, the scanning Hartmann test (SHT) has been used to measure the sub-aperture wavefront slopes of optical systems by scanning with a collimated… read more here.
Keywords: beam array; space; scanning hartmann; stitching method ... See more keywords
Effects of Laser-Beam Defocus on Microstructural Features of Compositionally Graded WC/Co-Alloy Composites Additively Manufactured by Multi-Beam Laser Directed Energy Deposition
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-65429-8
Abstract: Establishing processing routes for obtaining metal-matrix composites (MMCs) with uniformly-dispersed reinforcements is one of the main subjects in additively manufactured composite materials to achieve designed microstructures and mechanical properties. Here we report on the microstructural… read more here.
Keywords: additively manufactured; multi beam; laser beam; alloy composites ... See more keywords
Fast Double Selectivity Index-CFAR Detection Method for the Multi-Beam Echo Sounder
Sign Up to like & getrecommendations! Published in 2019 at "Marine Geodesy"
DOI: 10.1080/01490419.2019.1692265
Abstract: Abstract Seafloor terrain and water column target detection is of great significance in marine surveys. However, the complex clutter environment can dramatically affect the detection performance of a multi-beam echo sounder. To simultaneously and robustly… read more here.
Keywords: cfar detection; detection; method; echo sounder ... See more keywords
Multi-beam piezoelectric systems by means of dynamically equivalent stiffness concept
Sign Up to like & getrecommendations! Published in 2023 at "Smart Materials and Structures"
DOI: 10.1088/1361-665x/acd970
Abstract: Energy harvesting devices allow to obtain forms of energy present in nature and to convert them into electrical energy. One way of generating energy from mechanical vibrations is by using beams of piezoelectric materials. This… read more here.
Keywords: system; methodology; energy; beam piezoelectric ... See more keywords
Estimating the volumes of fish schools from observations with multi-beam sonars
Sign Up to like & getrecommendations! Published in 2017 at "ICES Journal of Marine Science"
DOI: 10.1093/icesjms/fsw186
Abstract: Multi-beam sonar is commonly used in purse seine fishing to visually evaluate school size and biomass. However, quantitative analyses of the across-beam school dimensions may provide more accurate estimates of school volumes. These may help… read more here.
Keywords: fish schools; school; estimating volumes; volumes fish ... See more keywords