ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'CodigoInstitucion'. [20018] (severity 16) [SELECT PublicObrasAutores.NumeroEmpleado, PublicObrasAutores.ApellidoPaterno, PublicObrasAutores.ApellidoMaterno, PublicObrasAutores.Nombre, PublicObrasAutores.NombreCompleto FROM PublicObrasAutores LEFT JOIN PublicObrasAutoresFil ON PublicObrasAutores.RefPublicacion = PublicObrasAutoresFil.RefPublicacion WHERE PublicObrasAutores.RefPublicacion = '263416' AND PublicObrasAutores.NumeroEmpleado IS NULL AND PublicObrasAutoresFil.CodigoInstitucion IS NOT NULL;]
®
ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'CodigoInstitucion'. [20018] (severity 16) [SELECT PublicObrasAutores.NumeroEmpleado, PublicObrasAutores.ApellidoPaterno, PublicObrasAutores.ApellidoMaterno, PublicObrasAutores.Nombre, PublicObrasAutores.NombreCompleto FROM PublicObrasAutores LEFT JOIN PublicObrasAutoresFil ON PublicObrasAutores.RefPublicacion = PublicObrasAutoresFil.RefPublicacion WHERE PublicObrasAutores.RefPublicacion = '263416' AND PublicObrasAutores.NumeroEmpleado IS NULL AND PublicObrasAutoresFil.CodigoInstitucion IS NULL;]
®
ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'Institucion'. [20018] (severity 16) [SELECT Institucion FROM PublicObrasAutoresFil WHERE RefPublicacion = '263416']
®
ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'Institucion'. [20018] (severity 16) [SELECT Institucion FROM PublicObrasAutoresFil WHERE RefPublicacion = 263416 AND InstitucionPropia = 'S'
UNION
SELECT Adscripciones.Entidad FROM PublicacionesObras
JOIN PublicObrasAutores ON PublicacionesObras.Identificador = PublicObrasAutores.RefPublicacion
JOIN Adscripciones ON PublicObrasAutores.NumeroEmpleado = Adscripciones.NumeroEmpleado
WHERE (PublicacionesObras.FechaPublicacion BETWEEN Adscripciones.FechaDesde AND Adscripciones.FechaHasta OR (PublicacionesObras.FechaPublicacion >= Adscripciones.FechaDesde AND Adscripciones.FechaHasta IS NULL)) AND PublicacionesObras.Identificador= 263416]
SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: Ishs 2014 - Hydraulic Structures And Society - Engineering Challenges And Extremes: Proceedings Of The 5th Iahr International Symposium On Hydraulic Structures Título del capítulo: Boundary between air entrainment and air transport downstream of a hydraulic jump in circular conduits
Air entrainment; High speed cameras; Hydraulic jump; Hydraulic structures; Velocity; Velocity distribution; Air bubbles; Air transport; Circular conduit; Experimental investigations; Velocity profiles; Air
Resumen:
The transition from partially full to full flow in downward sloping pipes often occurs with a hydraulic jump that entrains air bubbles downstream in a filled conduit that makes it difficult to define the boundary between the air entrainment and air transport behind the jump in circular conduits. With the aim of addressing this issue, an experimental investigation that included the measurement of air bubble velocities with a high speed camera at distances of 1, 5 and 10 diameters downstream of the jump was carried out. The analysis results showed that when the distance beyond the jump was less than 10 diameters, the velocity profiles were irregular and influenced by the eddying action of the jump; however, when it was greater than 10 diameters, the velocity distribution was very similar to that of a typical fully developed velocity profile in a circular conduit.The work concentrated on a mild downward slope S = 0.087 (= 5°) and small Froude numbers ranged from 0.045 to 2.04.
Entidades citadas de la UNAM:
Fuente:
ISBN: 9781742721156 Editorial: University of Queensland
