5,069 research outputs found
Death of Santa Anna's wife, Ines Garcia de Lopez de Santa Anna (Monterrey), 1844 September 17
No full textSpanish Language Manuscripts: Death of Santa Anna's wife, Ines Garcia de Lopez de Santa Anna (Monterrey), 1844 September 17
Generation and validation of a preclinical model of hypermutated lung cancer to study ICB resistance and DC Therapy
No full textNatural_SLH_impact_on_climate
No full textProcessed model dataset and post-processing/plotting scripts supporting the Article "Natural short-lived halogens exert an indirect cooling effect on climate" by Saiz-Lopez et al., 2023 are compiled here. The complete dataset generated during the current study is available from the corresponding author on reasonable request.European Research Council
ERC-2016-COG 726349 CLIMAHALPeer reviewe
On modified wavenumber filters for rail contribution estimations
No full textThis brief communication exposes an overview of various wavenumber filters to separate the rail contribution to pass-by noise via the wave signature extraction method [Zea, Manzari, Squicciarini, Feng, Thompson, and Lopez Arteaga, J. Sound Vib. 409, 24–42 (2017)]. It has been found that the originally proposed filters underesti- mate the rail noise at frequencies above 1.6 kHz due to the presence of higher-order wave families that is unaccounted for. The goal of this let- ter is thus to propose and examine different filter functions that can cap- ture such waves, and to assess whether the rail contribution estimations can be improved.QC 20181019Copyright 2018 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.The following article appeared in The Journal of the Acoustical Society of America 144, EL286 (2018) and may be found at http://asa.scitation.org/doi/10.1121/1.5063453.</p
Letter from The Dominguez Estate Company to Mr. R. Lopez, November 24, 1943
No full textInforming Mr. Lopez of the change in acreage on his lease with an attached statement
Correspondence to the Comandante General Pedro de Nava describing the Provincias Internas in New Spain.
No full textCorrespondence from an author named Lopez to the Comandante General Pedro de Nava describing the Provincias Internas in New Spain
Erosion côtière au Cap Lopez, Gabon, due à un canyon sous-marin
No full textAnalysis of the effect of a submarine canyon on the coastal erosion near Cap Lopez, Gabon, using mathematical modellin
Military correspondence on the infrastructure from to the the commander of artillery on the infrastructure in New Orleans, Louisiana.
No full textMilitary correspondence from an author named Lopez to the the commander of artillery on the infrastructure in New Orleans, Louisiana.. Unedited transcription available
Wavenumber-domain separation of rail contribution to pass-by noise
No full textIn order to counteract the problem of railway noise and its environmental impact, passing trains in Europe must be tested in accordance to a noise legislation that demands the quantification of the noise generated by the vehicle alone. However, for frequencies between about 500 Hz and 1600 Hz, it has been found that a significant part of the measured noise is generated by the rail, which behaves like a distributed source and radiates plane waves as a result of the contact with the train's wheels. Thus the need arises for separating the rail contribution to the pass-by noise in that particular frequency range. To this end, the present paper introduces a wavenumber–domain filtering technique, referred to as wave signature extraction, which requires a line microphone array parallel to the rail, and two accelerometers on the rail in the vertical and lateral direction. The novel contributions of this research are: (i) the introduction and application of wavenumber (or plane–wave) filters to pass-by data measured with a microphone array located in the near-field of the rail, and (ii) the design of such filters without prior information of the structural properties of the rail. The latter is achieved by recording the array pressure, as well as the rail vibrations with the accelerometers, before and after the train pass-by. The performance of the proposed method is investigated with a set of pass-by measurements performed in Germany. The results seem to be promising when compared to reference data from TWINS, and the largest discrepancies occur above 1600 Hz and are attributed to plane waves radiated by the rail that so far have not been accounted for in the design of the filters.QC 20170801Roll2Rai
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