Buscar
Mostrando ítems 51-60 de 143
Simple Model For Pressure Drop In Horizontal Core Annular Flow
(Braz Soc Mech Sci, Rio de Janeiro, Brazil, 1999)
Forest structure in a mosaic of rainforest sites: The effect of fragmentation and recovery after clear cut
(ELSEVIER SCIENCE BV, 2009)
A variety of human-induced disturbances such as forest fragmentation and recovery after deforestation for pasture or agricultural activities have resulted in a complex landscape mosaic in the Una region of northeastern ...
Comparative in situ studies of the unstable day-time equatorial E region
(Elsevier, 1985-10)
Plasma waves measured by probes on sounding rockets are used to characterize the unstable equatorial E-region and to reflect the changing irregularity morphology with respect to altitude within the layer. We present ...
Caracterização do sistema carbonato no Arquipélago de Fernando de Noronha
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Oceanografia, 2019)
Phenotypic variation of Guzmania triangularis functional traits along precipitation and elevation gradients in northern Colombian cloud forests
(Universidad de los AndesMaestría en Ciencias BiológicasFacultad de CienciasDepartamento de Ciencias Biológicas, 2022-08-01)
El cambio climático y su impacto sobre los diferentes ecosistemas, es un tema de gran importancia para la conservación de la biodiversidad y del medio ambiente a nivel global. Recientemente, se ha discutido sobre la ...
Desenvolvimento de compósitos cimentícios para cimentação de poços direcionais
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA E ENGENHARIA DE MATERIAIS, 2015-02-20)
The productive capacity of oil wells is directly related to the quality of cementing.
Cementing has the objective to isolate the undesirable areas of the producing zone.
In some cases, increasingly frequent and usual, ...
Mecanismo de colocação e auréola termal provocada pelo plutão ediacarano Catingueira, Zona Transversal, Província Borborema, Nordeste do Brasil
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM GEODINÂMICA E GEOFÍSICA, 2018-02-22)
The Catingueira pluton, located in the state of Paraíba, Domain Transversal Zone
(DTZ), Borborema Province (PB), is a classic peralkaline granite in the region
with an U-Pb zircon age of 573 ± 14 Ma, intrusive into ...
Spread in aspect angles of equatorial E region irregularities
(American Geophysical Union, 2008-11-12)
We revisit and extend the 50 MHz radar aspect angle study made in Peru by Kudeki and Farley in 1985, taking advantage of upgraded facilities at Jicamarca. We discuss here (1) type 1 and 2 echoes from the electrojet region, ...