منابع مشابه
Pressure Response of Aanderaa and Sea-Bird Oxygen Optodes
This study investigated the effect of hydrostatic pressure of up to 6000 dbar onAanderaa and Sea-Bird oxygen optodes both in the laboratory and in the field. The overall pressure response is a reduction in theO2 reading by 3%–4% per 1000 dbar, which is closely linear with pressure and increases with temperature. Closer inspection reveals two superimposed processes with an opposite effect: an O2...
متن کاملVery rapid long-distance sea crossing by a migratory bird
Landbirds undertaking within-continent migrations have the possibility to stop en route, but most long-distance migrants must also undertake large non-stop sea crossings, the length of which can vary greatly. For shorebirds migrating from Iceland to West Africa, the shortest route would involve one of the longest continuous sea crossings while alternative, mostly overland, routes are available....
متن کاملMapping Sea Bird Densities on the North Sea: Combining Geostatistics and Generalised Linear Models
Using airborne strip-transect monitoring data, maps of bird densities were estimated for several bird species. Because the densities are transformed count data with many genuine zeros, we combined a generalised linear modelling approach with geostatistics for the spatial interpolation. Water depth and distance to coast were used as covariates to model the trend. A generalised estimating equatio...
متن کاملShooting Type Polishing Machine
a rahalt-chromium (Co-Cr) alloy using a centrifugal shooting type polishing machine. In tha present work, we examined the effects of the texture of polishing particle and polishing time on the surface roughness of Co-Cr alloy cast specimens. Nine differcnt textures of polishing par'ticle were investigated wiLh respect to core material and paTticle abrasiveness: three (lifferent elastic body cer...
متن کاملComparison of Shooting Time Characteristics and Shooting Posture Between High- and Low- Performance Archers
Background. Archery is a precision sport that requires high levels of consistency and reproducibility in the shooting movement to achieve the highest score. Objectives. This study aimed to compare and correlate the shooting time characteristics and shooting posture on the archery shooting performance of high- and low-performance archers. Methods. Terengganu state team and Malaysia Pahang Spor...
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ژورنال
عنوان ژورنال: Nature
سال: 1890
ISSN: 0028-0836,1476-4687
DOI: 10.1038/041490b0