Results 21 to 30 of about 183 (70)
Applications of numerical analysis in navigation [PDF]
Part one of the thesis contains analysis of the methods of computation in navigation. We start with loxodromic navigation and, although this subject is well documented, we make a positive attempt to analyse the subject matter using the methods of ...
Williams, Roy
core +1 more source
Hypotheses and tracking results about the longest migration: The case of the arctic tern
The arctic tern is probably the animal that performs the longest known migrations. We used geolocator tracking data from a population of arctic terns from the Baltic Sea for evaluating the ecology and evolution of its long‐distance pelagic migration.
Thomas Alerstam +4 more
wiley +1 more source
Wavelet-based directional analysis of the gravity field: evidence for large-scale undulations
International audienceIn the eighties, the analysis of satellite altimetry data leads to the major discovery of gravity lineations in the oceans, with wavelengths between 200 and 1400 km.
Davaille, A +5 more
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In China, air traffic congestion has become increasingly prominent and tends to spread from terminal areas to en route networks. Accurate and objective traffic demand prediction could alleviate congestion effectively. However, the usual demand prediction is based on conjecture method of flying track, and the number of aircraft flying over a sector in a
Wen Tian +5 more
wiley +1 more source
Accuracy Improvement of Discharge Measurement with Modification of Distance Made Good Heading
Remote control boats equipped with an Acoustic Doppler Current Profiler (ADCP) are widely accepted and have been welcomed by many hydrologists for water discharge, velocity profile, and bathymetry measurements. The advantages of this technique include high productivity, fast measurements, operator safety, and high accuracy.
Jongkook Lee +4 more
wiley +1 more source
Our study analysed GPS data from three sympatric, generalist gull species in the Firth of Forth, Scotland, to investigate niche partitioning, focusing on spatial distributions and resource use, including population‐ and individual‐level habitat preferences.
Nina J. O'Hanlon +11 more
wiley +1 more source
The compound control of active‐disturbance‐rejection control (ADRC) with sliding mode is proposed to improve the performance of the closed‐loop system and deal with the constraint condition problem of a surface ship. The advantages of ADRC with sliding mode were verified by ship course control simulations. Meanwhile, to solve the path‐following problem
Ronghui Li +5 more
wiley +1 more source
Migration is an energy‐intensive phase of birds' life cycle, often including the crossing of large ecological barriers during non‐stop flights. Corticosterone (CORT), an adrenocortical hormone also known as the stress hormone, generally rises at the onset of migration to facilitate and sustain high‐energy metabolism.
Erica Calabretta +4 more
wiley +1 more source
Australian Ocean surface waves dataset from SAR
In this article, a first regional Synthetic Aperture Radar (SAR) ocean surface waves dataset, containing directional ocean swell spectra measurements from Europe's Sentinel‐1 A and B satellites, is described. The goal is to support marine scientific and industrial research in Australia.
S. Khan +3 more
wiley +1 more source
Titanium cholla : lightweight, high-strength structures for aerospace applications. [PDF]
Aerospace designers seek lightweight, high-strength structures to lower launch weight while creating structures that are capable of withstanding launch loadings.
Atwood, Clinton J. +5 more
core +1 more source

