Results 21 to 30 of about 3,574 (209)
BioMed Research International, Volume 2014, Issue 1, 2014., 2014 The in vitro and in silico analysis of Rubus fairholmianus acetone extract for antioxidant, antiproliferative, and anti‐inflammatory activity led to the isolation of six compounds. Amongst all the six isolated compounds tested, 1‐(2‐hydroxyphenyl)‐4‐methylpentan‐1‐one (compound 1) and 2‐[(3‐methylbutoxy) carbonyl] benzoic acid (compound 2) were found ...
Blassan Plackal George +5 more
wiley +1 more source
, 2018 As altitudes ortometricas e normais sao os dois sistemas de altitude mais utilizados na realizacao pratica dos data geodesicos verticais locais e nacionais.
Fábio Luiz Albarici +4 more
semanticscholar +1 more source
Mobile Information Systems, Volume 9, Issue 3, Page 189-208, 2013., 2013 Space and time are two dominant factors in context‐aware pervasive systems which determine whether an entity is related to the moving user or not. This paper specifically addresses the use of spatio‐temporal relations for detecting spatio‐temporally relevant contexts to the user.
Najmeh Neysani Samany +3 more
wiley +1 more source
Combined Acquisition and Tracking Methods for GPS L1 C/A and L1C Signals
International Journal of Navigation and Observation, Volume 2010, Issue 1, 2010., 2010 As part of the GPS modernization, the GPS L1 C/A signal will be augmented by the L1C signal. With this improvement, for the first time, several signals from the same constellation will be available at the same frequency. In this paper, an acquisition method is implemented to combine the GPS L1 C/A and L1C signals before correlation.
Florence Macchi-Gernot +3 more
wiley +1 more source
Forest Fire Risk Assessment: An Illustrative Example from Ontario, Canada
Journal of Probability and Statistics, Volume 2010, Issue 1, 2010., 2010 This paper presents an analysis of ignition and burn risk due to wildfire in a region of Ontario, Canada using a methodology which is applicable to the entire boreal forest region. A generalized additive model was employed to obtain ignition risk probabilities and a burn probability map using only historic ignition and fire area data. Constructing fire
W. John Braun +5 more
wiley +1 more source
O QUASE-GEOIDE DO ESTADO DE SÃO PAULO E A AVALIAÇÃO DOS MODELOS RECENTES DO GOCE
Revista Brasileira de Cartografia, 2015 Desde 2008, alguns esforços têm sido realizados em termos de medições gravimétricas no Estado de São Paulo como objetivo de melhorar o modelo geoidal. A cobertura gravimétrica está bastante completa para uma resolução de 5’.Além disso, trabalhos de campo
Gabriel do Nascimento Guimarães +2 more
semanticscholar +1 more source
Comparación de la precisión de los Modelos Geopotenciales EGM96 y EGM08 en la zona del Caribe. [PDF]
, 2012 Recientemente fue publicado un nuevo modelo geopotencial global, el EGM08. Este modelo ha mostrado una notable mejoría en la calidad de sus tres fuentes de datos; las observaciones del movimiento perturbado de los satélites artificiales,la altimetría ...
Bethencourt Fernández, Abelardo +1 more
core
Aplicación de las matemáticas en el primer enlace geodésico entre Europa y África [PDF]
, 2008 La figura que más se acerca a la verdadera forma de la tierra es el Geoide, pero su expresión matemática es muy compleja. Por tanto, para poder hacer mediciones sobre ella debe ser sustituida por diversas superficies de referencia más sencillas (planos ...
Almazan Garate, Jose Luis +2 more
core +1 more source
Revista Geográfica Acadêmica, 2015 Este artigo visa realizar uma breve abordagem dos principais conceitos, aplicações e técnicas de posicionamento espacial GNSS (Global Navigation Satellite System) como, por exemplo, o GPS (Global Positioning System), envolvidas na obtenção da ondulação ...
Maria Lígia Chuerubim
doaj +1 more source