Exposure to airborne biological hazards in an ever expanding urban transport infrastructure and highly diverse mobile population is of growing concern, in terms of both public health and biosecurity. The existing policies and practices on design, construction and operation of these infrastructures may have severe implications for airborne disease transmission, particularly, in the event of a pa...

Boresight Calibration of integrated imaging/inertial systems is a critical factor for map production, especially in the case of digital imaging sensors. The focus of this paper is therefore on boresight calibration using different approaches. Two boresight calibration approaches are presented, namely the airborne and the terrestrial approach. Traditional airborne boresight calibration has been ...

This paper describes a method for airborne evaluation and verification of the antenna patterns of broadcasting stations. Although it is intended for governmental institutions and broadcasters it may be also of interest to anyone who wants to evaluate large radiating structures. An airborne measurement to investigate the properties of the structure in all dimensions is needed. For complicated la...

In the recent past, airborne Synthetic Aperture Radar (SAR) remote sensing has witnessed several principal and technical improvements. In particular, spatial resolution has been increased significantly, polarimetric SAR, polarimetric interferometric SAR, and tomographic SAR were introduced, and repeat-pass interferometric SAR was developed for airborne SAR sensors. These advances have made poss...

© 2012 The Authors. doi: 10.2340/00015555-1296 Journal Compilation © 2012 Acta Dermato-Venereologica. ISSN 0001-5555 Periorbital dermatitis has an incidence of 3.9–4.8% (1). It is most commonly caused by contact allergy (54%) (direct contact 44% or airborne contact 10.2%), irritant contact dermatitis (CD) (9.1%) and atopic dermatitis (25%) (1). Metals are reported among the main causes of airbo...

Both in Finland and in Bulgaria the national weather services started networks for airborne radioactivity monitoring in the late 1950s because of the intense testing of nuclear weapons. Soon the institutes in both countries adopted monitoring methods for airborne total beta activity because these methods are relatively simple and cost-efficient. A comparison of results from Finland and Bulgaria...

$EVWUDFW With airborne gravimetry routinely reaching accuracies of 1-2 mGal at 5-10 km resolution, it is a challenge to perform a reliable downward continuation of the gravity anomalies at altitude. Airborne gravimetry is especially suited for geoid determination in mountainous and polar regions, due to the random, alias-free sampling of the terrain, relative to typical surface surveys. In the ...

Airborne contaminants occur in the gaseous form (gases and vapours) or as aerosols. Aerosols may exist in the form of airborne dusts, sprays, mists, smokes and fumes. In the occupational setting, all these forms may be important because they relate to a wide range of occupational diseases. Airborne dusts are of particular concern because they are well known to be associated with classical wides...

The Wells-Riley equation for modelling airborne infection in indoor environments is incorporated into an SEIR epidemic model with a short incubation period to simulate the transmission dynamics of airborne infectious diseases in ventilated rooms. The model enables the effect of environmental factors such as the ventilation rate and the room occupancy to be examined, and allows the long-term imp...

The airborne coherent Doppler lidar could provide the wind velocity relative to the motion of the lidar. The retrieval algorithms are complex corresponding to Ground-based lidar, due to the Doppler shift caused by mobile platform. This article gives a thorough analysis of the wind retrieval algorithms for the wind products of airborne Doppler lidar, include the correction for the lidar velocity...