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Configuration and geometry of sap holes drilled by the White-fronted Woodpecker (Melanerpes cactorum): effects of tree structure, sap traits and plant health
(Csiro Publishing, 2015)
Several species of woodpecker drill holes in living trees to feed on flows of sap. We describe sap-holes drilled by the White-fronted Woodpecker (Melanerpes cactorum) on plant species in semi-arid woodlands of northern ...
Furação de material sanduíche empregando brocas com geometriasdiferentes
(Universidade Federal de Minas GeraisUFMG, 2017-02-16)
Various materials are known and used in industry, especially metals, polymers and ceramics. However, the combination of these materials has been important for the creation of products with specific characteristics. Among ...
Evaluation of the Mechanical Behaviour of Al2o3 and Al2o3 -Tio2 Coatings Using a Bench Drill
(Universidad de Antioquia, Facultad de IngenieríaMedellín, Colombia, 2017)
Spatial analysis of sap consumption by birds in the Chaco dry forests from Argentina
(Csiro Publishing, 2011-08)
Sap is a resource of high energy content that is usually inaccessible to birds, although woodpeckers have the ability to drill into living trees to obtain sap. Because spatial patterns of resource availability influence ...
Contribuições ao processo de furação com brocas helicoidais
([s.n.], 1996)
Modelación numérica del efecto de arco y la presión de lodos en una perforación horizontal dirigida
(Universidad Nacional de ColombiaBogotá - Ingeniería - Maestría en Ingeniería - GeotecniaFacultad de IngenieríaBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá, 2022-08-26)
La construcción de una perforación horizontal dirigida (PHD) tiene tres (3) etapas principales: la elaboración del túnel piloto, el ensanchamiento de la perforación al diámetro requerido y la instalación de la tubería. Las ...
Influence of nonlinear stiffness on the dynamics of a slender elastic beam under torsional oscillations
(2014)
This study focuses on analysing the effects of nonlinear torsional stiffness on the dynam-ics of a slender elastic beam under torsional oscillations, which can be subject to helical buckling.The helical buckling of an ...
El comportamiento de los limeños y su relación con la comunicación de prevención de sismos
(Universidad Peruana de Ciencias Aplicadas (UPC)PE, 2020-10-27)
El Perú se encuentra en el cinturón de fuego del Pacífico, por lo que los sismos son un riesgo latente. Ante ello, el director de INDECI, reveló que 3 de cada 10 peruanos no participan de los simulacros de prevención. Por ...
High-resolution paleomagnetic secular variations and relative paleointensity since the Late Pleistocene in southern South America
(Pergamon-Elsevier Science Ltd, 2013-02)
Paleomagnetic inclination, declination and relative paleointensity were reconstructed from the sediments of Laguna Potrok Aike in the framework of the International Continental scientific Drilling Program (ICDP) Potrok ...