Results 11 to 20 of about 7,420,961 (288)
Theory and assessment of an improved power spectral density estimator [PDF]
, 1990 This thesis is concerned with the processing of time domain signals received by a single sensor. An example of such signals is the radar return, which is used in one way or another to estimate the power spectral density a frequency representation of ...
Ali, Ali Abbas
core +7 more sources
Spectral Domain Low- Coherence Interferometry for On-line Surface Inspection [PDF]
, 2013 We present an on-line surface measurement technique based on spectral domain low-coherence interferometry (SD-LCI), which can obtain a one dimensional surface profile with just one shot.
Gao, F., Jiang, Xiang, Tang, Dawei
core +4 more sources
Computer Models for Musical Instrument Identification [PDF]
, 2006 PhDA particular aspect in the perception of sound is concerned with what is commonly termed as texture or timbre. From a perceptual perspective, timbre is what allows us to distinguish sounds that have similar pitch and loudness. Indeed most people are
Chetry, Nicolas D, Chetry, Nicolas D.
core +4 more sources
Spectral line-by-line pulse shaping of on-chip microresonator frequency combs [PDF]
, 2011 Recently, on-chip comb generation methods based on nonlinear optical modulation in ultrahigh-quality-factor monolithic microresonators have been demonstrated, where two pump photons are transformed into sideband photons in a four-wave-mixing process ...
Lei Chen +15 more
core +1 more source
Saliva as a first-line diagnostic tool: A spectral challenge for identification of cancer biomarkers [PDF]
Journal of Molecular Liquids, 2020 Abstract The paper concentrates on the role of saliva in the early diagnosis of salivary gland tumor. Due to the still not fully understood etiology of head and neck cancer, the fundamental objective of this study is to find tumor markers of salivary gland tumor progression.
Paluszkiewicz, Czeslawa +7 more
openaire +2 more sources
Spectral Line Depth Variability in Radial Velocity Spectra [PDF]
, 2022 Stellar active regions, including spots and faculae, can create radial velocity (RV) signals that interfere with the detection and mass measurements of low mass exoplanets.
Plavchan, Peter +5 more
core +1 more source
The Astrophysical Journal, 2023 Freshly synthesized r -process elements in kilonovae ejecta imprint absorption features on optical spectra, as observed in the GW170817 binary neutron star merger. These spectral features encode insights into the physical conditions of the r -process and
Nicholas Vieira +6 more
doaj +1 more source
New identifications of Fe XVII spectral lines in solar flares [PDF]
Monthly Notices of the Royal Astronomical Society, 1985 The identifications of Fe XVII transitions between the 2s(2)2p(5)3s, 3p, and 3d configurations published by Jupen (1984) are reviewed. The review is based on examining spectroheliograms of solar flares obtained by a Naval Research Laboratory instrument on Skylab (S082-A).
U. Feldman, G. A. Doschek, J. F. Seely
openaire +1 more source
Discovery of the Elusive Carbonic Acid (HOCOOH) in Space
The Astrophysical Journal, 2023 A quarter century after the detection of the last interstellar carboxylic acid, acetic acid (CH _3 COOH), we report the discovery of a new one, the cis-trans form of carbonic acid (HOCOOH), toward the Galactic center molecular cloud G+0.693–0.027. HOCOOH
Miguel Sanz-Novo +14 more
doaj +1 more source
On-line identification of MIMO evolving Takagi-Sugeno fuzzy models [PDF]
, 2004 Evolving Takagi-Sugeno (eTS) fuzzy models and the method for their on-line identification has been recently introduced as an effective tool for design of flexible system models with minimum a priori information.
Angelov, Plamen, Xydeas, C, Filev, D
core +4 more sources