Results 11 to 20 of about 972,141 (293)

Comparison of Results Obtained by Two Methods of Surface Mapping

open access: yesCivil and Environmental Engineering, 2020
Considering that the unevenness of the road surface is the primary source of the kinematic excitation of the vehicle, it is necessary to map the unevenness, and then to describe it mathematically.
Melcer Jozef   +2 more
doaj   +1 more source

Research on Spectral Characteristics of Wake Bubble Curtain

open access: yes水下无人系统学报, 2023
When the ship is sailing, the bubble curtain is generated due to the stirring of the propeller and the influence of the air and sea water, and a wake is formed at the tail of the ship. At present, the research on wake optics mainly focuses on macroscopic
Xueli FANG, Jiansheng ZHANG
doaj   +1 more source

Spray Combustion Spectral Characteristics [PDF]

open access: yesASME 1997 Turbo Asia Conference, 1997
Spray combustion in an axisymmetric combustor is analyzed numerically with three droplet models; (1) Ranz and Marshall droplet law (2) droplet laws by canonical droplet theory, accounting for the droplet blowing effect and flow convecting effect, and (3) renormalized canonical droplet theory, which accounts for the drop-drop short range interaction as ...
S. S. Chang, T. S. Lee, H. H. Chiu
openaire   +1 more source

Gauge invariant spectral Cauchy characteristic extraction [PDF]

open access: yesClassical and Quantum Gravity, 2015
We present gauge invariant spectral Cauchy characteristic extraction. We compare gravitational waveforms extracted from a head-on black hole merger simulated in two different gauges by two different codes. We show rapid convergence, demonstrating both gauge invariance of the extraction algorithm and consistency between the legacy Pitt null code and the
Handmer, Casey J.   +2 more
openaire   +3 more sources

The spectral characteristics of the 2dFGRS-NVSS galaxies [PDF]

open access: yes, 2000
We have analysed the 2dF spectra of a sample of galaxies common to the 2dF galaxy redshift survey (2dFGRS, Colless 1999) and the NRAO VLA sky survey (NVSS, Condon et al. 1998). Our sample comprises 88 galaxies selected by Sadler et al.
C. A. Jackson   +3 more
core   +3 more sources

Spectral Characteristics of Schwa in Czech Accented English [PDF]

open access: yes, 2013
The English central mid lax vowel (i.e., schwa) often contributes considerably to the sound differences between native and non-native speech. Many foreign speakers of English fail to reduce certain underlying vowels to schwa, which, on the suprasegmental
Ashby   +32 more
core   +2 more sources

Solution of the inverse spectral problem for differential operators on a finite interval with complex weights [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
Non-self-adjoint second-order ordinary differential operators on a finite interval with complex weights are studied. Properties of spectral characteristics are established, and the inverse problem of recovering operators from their spectral ...
Yurko, Vjacheslav Anatol'evich
doaj   +1 more source

A Review of Unmanned Aerial Vehicle Low-Altitude Remote Sensing (UAV-LARS) Use in Agricultural Monitoring in China

open access: yesRemote Sensing, 2021
Precision agriculture relies on the rapid acquisition and analysis of agricultural information. An emerging method of agricultural monitoring is unmanned aerial vehicle low-altitude remote sensing (UAV-LARS), which possesses significant advantages of ...
Haidong Zhang   +3 more
doaj   +1 more source

Hybridization of optical plasmonics with terahertz metamaterials to create multi-spectral filters [PDF]

open access: yes, 2013
Multi-spectral imaging systems typically require the cumbersome integration of disparate filtering materials in order to work simultaneously in multiple spectral regions.
Cumming, D.R.S.   +3 more
core   +1 more source

Variation in the circularly polarized light reflection of Lomaptera (Scarabaeidae) beetles [PDF]

open access: yes, 2016
An extended spectroscopic study on the left-through-left circularly polarised reflection spectra of a large number of beetles from the Australasian Scrabaeidae:Cetoniinae of the Lomaptera genus was undertaken.
Carter, IE   +3 more
core   +1 more source

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