The impact factor mania, also called impactitis, continues to play an improper role in the choices made by most investigators as to which journals to submit their research articles in the biomedical fields, and still worse, in the decisions taken by governing bodies and research grant allocators, as highlighted in a recent mBio editorial (1). Other factors, however, are threatening the scientif...

• The Littlewoods Organisation plc and Freemans plc, November 1997; • National Express Group plc and Central Trains Limited, December 1997, (background reading: National Express Group plc and ScotRail Railways Limited, December 1997); • British Sky Broadcasting Group plc and Manchester United PLC, April 1999; and • CHC Helicopter Corporation and Helicopter Services Group ASA, January 2000 (back...

Abstract: This paper presents a combination of a computational structural dynamics (CSD) and high fidelity unsteady computational fluid dynamics (CFD) analysis. Regarding a helicopter in hover, aerodynamic loads are computed from the three-dimensional Navier-Stokes solver in overlapped grids, and blade motions are obtained from the geometrically exact rotor beam analysis. To couple those analys...

This paper describes an algorithm that tracks and localizes a helicopter using a ground-based trinocular camera array. Using background differencing and a Kalman filter, the helicopter is found in each of the camera images. The location of the moving helicopter in each image is then used to self-calibrate the relative positions and orientations of each of the cameras in the array while simultan...

Helicopter pilots are required to perform many visual workloads in topographical avoidance, flight path modification and navigation, because helicopters operate at very low altitudes. The helicopter-specific instability also require the pilot have precise perception control. This has caused frequent human error helicopter accidents. In Korea, two three cases occurred annually on average over pa...

In this study we examine the potential use of six polarimetric features for interpretation of late summer sea ice types. Five high-resolution C and X-band scenes were recorded in the Fram Strait covering fast first-year and old sea ice. In addition sea ice thickness, surface roughness and melt pond fraction were collected during a helicopter flight at the study area. From the SAR scenes, six po...