Two common metrics of particle pollution measure the total number of particles (particle number) and the total mass of the particles (particle mass). This work analyzes particle number and mass emission rates measured from the exhaust of a 2002 diesel transit bus in real-driving conditions using on on-board mini-dilution system. The number concentrations were measured using the Electrical Low P...

conclusions the layout of whiteboard in classrooms can be effective in causing student’s neck pain. in this study, the suitable height of installation of whiteboard was determined and it is recommended to be used in classrooms. background the mismatch between equipments and anthropometric dimensions of users is one of the issues that can be effective on development of musculoskeletal disorders ...

In the Human Health Risk Assessment (HHRA) for the Housatonic River, EPA has used an absorption factor of 14 percent to evaluate dermal exposure to PCBs. This dermal absorption factor is based on a study by Wester et al. (1993) of PCB absorption from the soil into the skin of Rhesus monkeys. As discussed below, that study used soil with a large particle size and very low organic carbon content,...

Simultaneous Localization and Mapping (SLAM) is one of the classical problems in mobile robotics. The task is to build a map of the environment using on-board sensors while at the same time localizing the robot relative to this map. Rao-Blackwellized particle filters have emerged as a powerful technique for solving the SLAM problem in a wide variety of environments. It is a well-known fact for ...

This paper addresses the problem of absolute localization in an indoor environment using a RGB-Depth camera. The approach is based on the use of the ground region perceived by the RGB camera to detect and decode its position and edges. The localization system uses this data to match it with a known on-board map. The ground plane detection algorithm is designed to be robust to vibration or distu...

Fire tracking is an increasingly important area of research aiming to help firefighters more effectively fight fires. In the past, piloted aircraft have been the main source for obtaining fire characteristics from the air. In recent years unmanned air vehicles (UAVs) have become popular for the same purpose. While large UAVs are an effective means of assisting firefighters, they are expensive t...

This work presents a particle lter (pf) method closely related to Fastslam for solving the simultaneous localization and mapping (slam) problem. Using the standard Fastslam algorithm, only low-dimensional vehicle models can be handled due to computational constraints. In this work an extra factorization of the problem is introduced that makes high-dimensional vehicle models computationally feas...

the growing importance of the environmental and social policies in the spanish savings banksand the large differences between them, take us to delve into those factors that influence on the amounts spent on environment and welfare fund.in this line, we have analyzed all the spanish savings banks, over the period 2004-2008 and using the methodology of panel data, the effect that the composition ...

the growing importance of the environmental and social policies in the spanish savings banksand the large differences between them, take us to delve into those factors that influence on the amounts spent on environment and welfare fund.in this line, we have analyzed all the spanish savings banks, over the period 2004-2008 and using the methodology of panel data, the effect that the composition ...