The Walfisch model predicts the average path loss from a conceptualised model of the propagation environment in which propagation is assumed to take place over rows of buildings of equal height and spacing. The propagation loss is then separated into that resulting from free space wavefront spreading, multiple forward-diffraction past the rows of buildings and diffraction over the final rooftop...

Height extraction by radar remote sensing is an attractive issue for the building detection and recognition. According to the analysis on the building geometrical properties in the SAR imagery, a novel height estimation algorithm is proposed following a model-based geometrical structure prediction and matching strategy. The range Doppler equation is introduced and simplified for the building 2D...

Falling from height is an urban phenomenon and shows an important form of blunt trauma. We report an 18-year-old man who fell from 6 m height onto vertical steel rods in an under construction building. He went under surgery to remove two foreign bodies and was discharged on the 2nd day after surgery in good conditions. The objective of this report is to provide a definitive baseline to improve ...

This paper presents a scheme for the reconstruction of building models from LIDAR data by using an iterative regularization approach. The proposed scheme comprises three major parts: (1) elevation slicing, (2) boundary regularization, and (3) roof determination. The idea of elevation slicing is similar to the elevation contour map, where each contour line indicates a height level. We select a h...

BACKGROUND Healthcare providers operate in a unique industry characterized by pursuit of perhaps the most noble of missions: the delivery of vital health and medical services to those in need. Distinguishing features abound, differentiating the healthcare industry from others, with such facets having the potential to compel those serving in health and medical establishments to focus exclusively...