Matches in SemOpenAlex for { <https://semopenalex.org/work/W4385846174> ?p ?o ?g. }
Showing items 1 to 51 of
51
with 100 items per page.
- W4385846174 endingPage "59" @default.
- W4385846174 startingPage "59" @default.
- W4385846174 abstract "Daily variations of the F-region critical frequency observed at Concepción (36.8 0 S, 73°W), representative of Winter, Equinox and Summer conditions for both low and high solar activity levels are given. A semiempirical model produced using these data is then proposed giving seasonal median critical frequencies for each hour, season, and low and high solar activity level. The model is based on a servomechanism model published in the late sixties which has recently been shown to be of value. Simple quantitative expressions for photochemical, diffusive and transport dependencies of the peak electron concentration are assumed in the proposed model. Model results are compared with both corresponding measured data and CCIR model. MODELO SEMI-EMPÍRICO PARA O CÁLCULO DA FREQÜÊNCIA CRÍTICA DA REGIÃO-F SOBRE CONCEPCIÓN Consideram-se as variações diárias da frequência crítica da região-F observadas em Concepción (36,80S, 73°W) como representativas das condições de inverno, equinócio e verão, para níveis de atividade solar baixo e alto. Utilizando esta base de dados propõe-se um modelo semi-empírico que permite calcular frequências críticas medianas para cada hora, estação do ano, e para níveis de atividade solar baixo e alto. O modelo se fundamenta num modelo de servomecanismo proposto no fim dos anos sessenta que tem se mostrado bom nestes últimos tempos. Supõe-se no modelo proposto expressões quantitativas simples para as influências fotoquímica, difusa e de transporte, na concentração eletrônica máxima. Os resultados do modelo se comparam com dados medidos e com dados do modelo CCIR." @default.
- W4385846174 created "2023-08-16" @default.
- W4385846174 creator A5035217169 @default.
- W4385846174 creator A5065436773 @default.
- W4385846174 creator A5090058379 @default.
- W4385846174 date "2018-07-18" @default.
- W4385846174 modified "2023-10-06" @default.
- W4385846174 title "Semiempirical Model for Calculating the Critical Frequency of the F-Region over Concepcion" @default.
- W4385846174 doi "https://doi.org/10.22564/brjg.v8i1-2.1089" @default.
- W4385846174 hasPublicationYear "2018" @default.
- W4385846174 type Work @default.
- W4385846174 citedByCount "0" @default.
- W4385846174 crossrefType "journal-article" @default.
- W4385846174 hasAuthorship W4385846174A5035217169 @default.
- W4385846174 hasAuthorship W4385846174A5065436773 @default.
- W4385846174 hasAuthorship W4385846174A5090058379 @default.
- W4385846174 hasBestOaLocation W43858461741 @default.
- W4385846174 hasConcept C116403925 @default.
- W4385846174 hasConcept C121332964 @default.
- W4385846174 hasConcept C1276947 @default.
- W4385846174 hasConcept C142362112 @default.
- W4385846174 hasConcept C15708023 @default.
- W4385846174 hasConcept C43157870 @default.
- W4385846174 hasConcept C91586092 @default.
- W4385846174 hasConceptScore W4385846174C116403925 @default.
- W4385846174 hasConceptScore W4385846174C121332964 @default.
- W4385846174 hasConceptScore W4385846174C1276947 @default.
- W4385846174 hasConceptScore W4385846174C142362112 @default.
- W4385846174 hasConceptScore W4385846174C15708023 @default.
- W4385846174 hasConceptScore W4385846174C43157870 @default.
- W4385846174 hasConceptScore W4385846174C91586092 @default.
- W4385846174 hasIssue "1-2" @default.
- W4385846174 hasLocation W43858461741 @default.
- W4385846174 hasOpenAccess W4385846174 @default.
- W4385846174 hasPrimaryLocation W43858461741 @default.
- W4385846174 hasRelatedWork W2038350100 @default.
- W4385846174 hasRelatedWork W2050665927 @default.
- W4385846174 hasRelatedWork W2057611894 @default.
- W4385846174 hasRelatedWork W2058668371 @default.
- W4385846174 hasRelatedWork W2067965634 @default.
- W4385846174 hasRelatedWork W2077869818 @default.
- W4385846174 hasRelatedWork W2169631737 @default.
- W4385846174 hasRelatedWork W2170165784 @default.
- W4385846174 hasRelatedWork W2740647293 @default.
- W4385846174 hasRelatedWork W2523519836 @default.
- W4385846174 hasVolume "8" @default.
- W4385846174 isParatext "false" @default.
- W4385846174 isRetracted "false" @default.
- W4385846174 workType "article" @default.