5 results on '"CFLO"'
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2. Análise do monitoramento de descargas atmosféricas na área de concessão da companhia força e luz do oeste em Guarapuava, Estado do Paraná = Analysis of the monitoring of atmospheric discharges in the area of cocession of the western força e luz company in Guarapuava, state of Paraná
- Author
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Aparecido Ribeiro de Andrade, Maurício Maciel, and Jonas Teixeira Nery
- Subjects
descarga atmosférica ,energia elétrica ,sistema elétrico ,CFLO ,atmospheric discharges ,electric energy ,electric system ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Science (General) ,Q1-390 - Abstract
Objetivando uma análise do monitoramento da incidência de descargasatmosféricas, a região de concessão da Companhia Força e Luz do Oeste (CFLO), localizada no município de Guarapuava, Estado do Paraná, foi selecionada para um estudo realizado no período de janeiro a dezembro de 2003. Após a descrição da dinâmica da entrada de massas de ar, foi possível identificar a ocorrência de descargas atmosféricas e compará-las com as interrupções de energia. Para tanto, foram criados mapas de densidade de descargas atmosféricas dentro da área de concessão da CFLO para posterior análise de sua influênciano fornecimento de energia elétrica. O monitoramento das descargas atmosféricas e a comparação da incidência desse fenômeno com a ocorrência de interrupções no fornecimento de energia elétrica possibilitaram concluir que tais eventos estão diretamenterelacionados, e que a área rural da região em estudo sofre uma interferência maior.Aiming to analyze the monitoring of the atmospheric discharges incidence, the concession area of Companhia Força e Luz do Oeste (CFLO) – Western Power and Light Company, located in the district of Guarapuava, state of Paraná, was chosen for a study developed in2003, from January to December. After the air masses dynamics description, it was possible to identify the occurrence of atmospheric discharges and to compare them to the energy interruptions. To that end, atmospheric discharges density maps were created within the CFLO concession area for a later analysis of their influence in the electric energy supply. The monitoring of the atmospheric discharges and the comparison between this phenomenon and the occurrence of interruptions in the electric energy supply enabled this study. Results showed that such events are directly related, and that the rural area of the region under study underwent a major interference.
- Published
- 2007
3. Análise do monitoramento de descargas atmosféricas na área de concessão da companhia força e luz do oeste em Guarapuava, Estado do Paraná - DOI: 10.4025/actascitechnol.v29i1.96
- Author
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Andrade, Aparecido Ribeiro de, Maciel, Maurício, and Nery, Jonas Teixeira
- Subjects
sistema elétrico ,energia elétrica ,descarga atmosférica ,CFLO - Abstract
Aiming to analyze the monitoring of the atmospheric discharges incidence, the concession area of Companhia Força e Luz do Oeste (CFLO) – Western Power and Light Company, located in the district of Guarapuava, state of Paraná, was chosen for a study developed in 2003, from January to December. After the air masses dynamics description, it was possible to identify the occurrence of atmospheric discharges and to compare them to the energy interruptions. To that end, atmospheric discharges density maps were created within the CFLO concession area for a later analysis of their influence in the electric energy supply. The monitoring of the atmospheric discharges and the comparison between this phenomenon and the occurrence of interruptions in the electric energy supply enabled this study. Results showed that such events are directly related, and that the rural area of the region under study underwent a major interference. Objetivando uma análise do monitoramento da incidência de descargas atmosféricas, a região de concessão da Companhia Força e Luz do Oeste (CFLO), localizada no município de Guarapuava, Estado do Paraná, foi selecionada para um estudo realizado no período de janeiro a dezembro de 2003. Após a descrição da dinâmica da entrada de massas de ar, foi possível identificar a ocorrência de descargas atmosféricas e compará-las com as interrupções de energia. Para tanto, foram criados mapas de densidade de descargas atmosféricas dentro da área de concessão da CFLO para posterior análise de sua influência no fornecimento de energia elétrica. O monitoramento das descargas atmosféricas e a comparação da incidência desse fenômeno com a ocorrência de interrupções no fornecimento de energia elétrica possibilitaram concluir que tais eventos estão diretamente relacionados, e que a área rural da região em estudo sofre uma interferência maior.
- Published
- 2007
4. Analysis of the monitoring of atmospheric discharges in the area of cocession of the western forca e luz company in Guarapuava, state of Parana
- Author
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Jonas Teixeira Nery, Maurício Maciel, Aparecido Ribeiro de Andrade, Univ Estadual Centro Oeste, and Universidade Estadual Paulista (Unesp)
- Subjects
electric energy ,General Computer Science ,General Mathematics ,General Engineering ,General Earth and Planetary Sciences ,General Physics and Astronomy ,General Chemistry ,atmospheric discharges ,electric system ,CFLO - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2014-02-26T17:02:38Z No. of bitstreams: 1 WOS000259840900015.pdf: 577034 bytes, checksum: 8a5a881499b30851a80d42e0e9251c65 (MD5) Made available in DSpace on 2014-02-26T17:02:38Z (GMT). No. of bitstreams: 1 WOS000259840900015.pdf: 577034 bytes, checksum: 8a5a881499b30851a80d42e0e9251c65 (MD5) Previous issue date: 2007-01-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:12:03Z No. of bitstreams: 1 WOS000259840900015.pdf: 577034 bytes, checksum: 8a5a881499b30851a80d42e0e9251c65 (MD5) Made available in DSpace on 2014-05-20T13:12:03Z (GMT). No. of bitstreams: 1 WOS000259840900015.pdf: 577034 bytes, checksum: 8a5a881499b30851a80d42e0e9251c65 (MD5) Previous issue date: 2007-01-01 Aiming to analyze the monitoring of the atmospheric discharges incidence, the concession area of Companhia Forca e Luz do Oeste (CFLO) - Western Power and Light Company, located in the district of Guarapuava, state of Parana was chosen for a study developed in 2003, from January to December. After the air masses dynamics description, it was possible to identify the occurrence of atmospheric discharges and to compare them to the energy interruptions. To that end, atmospheric discharges density maps were created within the CFLO concession area for a later analysis of their influence in the electric energy supply. The monitoring of the atmospheric discharges and the comparison between this phenomenon and the occurrence of interruptions in the electric energy supply enabled this study. Results showed that such events are directly related, and that the rural area of the region under study underwent a major interference. Univ Estadual Centro Oeste, Dept Geog, BR-84500000 Irati, Parana, Brazil Univ Estadual Centro Oeste, Curso Grad Geog, BR-84500000 Irati, Parana, Brazil Univ Estadual Paulista, Unidade Diferenciada Ourinhos, São Paulo, Brazil Univ Estadual Paulista, Unidade Diferenciada Ourinhos, São Paulo, Brazil
- Published
- 2007
5. In vitro and in vivo studies on thermistor-based intracoronary temperature measurements: Effect of pressure and flow
- Author
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UCL - (SLuc) Service de pathologie cardiovasculaire, UCL - (SLuc) Service de pathologies cardiovasculaires intensives, UCL - MD/MINT - Département de médecine interne, Cuisset, Thomas, Beauloye, Christophe, Melikian, Narbeh, Hamilos, Michalis, Sarma, Jaydeep, Sarno, Giovanna, Naslund, Maria, Smith, Leif, Van de Vosse, Frans, Pijls, Nico H.J., De Bruyne, Bernard, UCL - (SLuc) Service de pathologie cardiovasculaire, UCL - (SLuc) Service de pathologies cardiovasculaires intensives, UCL - MD/MINT - Département de médecine interne, Cuisset, Thomas, Beauloye, Christophe, Melikian, Narbeh, Hamilos, Michalis, Sarma, Jaydeep, Sarno, Giovanna, Naslund, Maria, Smith, Leif, Van de Vosse, Frans, Pijls, Nico H.J., and De Bruyne, Bernard
- Abstract
Background: Intracoronary thermography has been proposed to detect vulnerable plaques. We hypothesized that changes in coronary pressure and flow in the coronary tree may interfere with the temperature measurements obtained with thermistors. Methods and Results: First, a very close correlation was found in vitro between the temperature measured by a thermocouple and by a thermistor-based temperature measuring guide wire (PressureWire, PW) over a large temperature range. Second, the PW was tested in a vitro low pressure model of "hot plaque". The sensor of the PW could detect changes in temperature of the wall of 0.5°C as long as the distance from the wall was less than 0.5 mm and the flow less than 60 mL/min. Third, in 18 patients with an acute myocardial infarction, intracoronary pressure and temperature variations were assessed. Although crossing the occlusion, the temperature rose by 0.059 ± 0.02°C and this increase was correlated with the distal coronary pressure (r = 0.72, P <0.001). Fourth, a balloon coronary occlusion (BCO) with the sensor distally in the distal part of the vessel (low flow/low pressure conditions) systematically induced an increase in temperature (0.14 ± 0.07°C) while with the sensor proximally to the balloon occlusion (low flow/normal pressure conditions), no change occurred. Conclusion: Taken together these observations suggest that thermistor-based sensors are not suited for assessing thermal heterogeneity in the vascular wall and that the data obtained so far in patients with acute coronary syndromes might have been flawed by pressure (and flow) artifacts. © 2009 Wiley-Liss, Inc.
- Published
- 2009
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