We created an introductory physics activity for undergrad students consisting in measuring by different methods the same physical quantity. It allows to confront with questions of uncertainty, precision, and model versus theory. The aim was measure height a building using only smartphone everyday low-cost equipment. designed 61 do so tested most them. These can be implemented various pedagogica...

Abstract. Information describing the elements of urban landscapes is required as input data to study numerous physical processes (e.g., climate, noise, air pollution). However, accessibility and quality heterogeneous across world. As an example, a major open-source geographical project (OpenStreetMap) demonstrates incomplete regarding key properties such building height. The present implements ...

The subject of this paper is the extraction of 3D information using an optical image and a SAR image. This aim is made difficult by the very different appearances of the landscape and the man-made features in both images. The proposed method is based on the extraction of SAR primitives (bright linear and point features). They are then matched to the optical image using the directional and modul...

Mound-building termites of the genus Macrotermes actively reshape their physical environment in ways that benefit their colony. Previous studies of Macrotermes have focused on the response of termites to stimuli such as water and pheromones. Observations typically quantify relative preferences between stimuli or the bulk movement of building material. However, for fuller insight into the constr...

This paper presents a knowledge based approach for 3D reconstruction of buildings from aerial images. The aerial images are combined with information from 2D GIS database and specific knowledge of the buildings. This paper describes the generation of building hypotheses in case of large variations in the terrain height. First the possible locations of a building in the images are determined by ...

To study the performance of nozzle air supply in a large space building, this paper builds a simplified computational model of a large exhibition hall applied with vertical nozzle air supply system using the method of computational fluid dynamics (CFD). The Fluent software is used to realize the three-dimensional simulation and obtain the temperature field and velocity field in the occupied zon...