ABSTRACT. In gravimetric surveys, the determination of the gravity at a specific point depends on field measurements and on the removal of the influence of the tide...Keywords: earth tide correction, gravimetric factor, gravimetry, gravimetric surveys. RESUMO. Em levantamentos gravimétricos a determinação da gravidade de um ponto depende de medições em campo, bem como da remoção da influência da maré...Palavras-chave: correção da maré, fator gravimétrico, gravimetria, levantamento gravimétrico.
Based on the concepts of social inclusion, universal design, and accessibility, this paper aims to describe the stages of the development and implementation of a Geographic Information System for the Internet (Web GIS) based on open source (OS) software. The Web GIS developed is called "Accessibility to Campinas Tourist Attractions", which provides information about cultural and natural attractions in Campinas/SP- Brazil, especially for people with disabilities or reduced mobility that prevents access these sites via public and private transportation. The verification of the existence or lack of accessibility equipment at bus stops and parking areas close to tourist attractions relies on current legislation (NBR 9050) that establishes the right to accessibility for disabled people to transportation, local culture, and leisure.
Based on the concepts of social inclusion, universal design and accessibility, this paper aims to describe the stages of the development and implementation of a Web GIS (geographic information system for the internet) based on OS (open source) software. The Web GIS developed is called "accessibility to Campinas tourist attractions", which provides information about cultural and natural attractions in Campinas/SP-Brazil, especially for people with disabilities or reduced mobility that prevents access these sites via public and private transportation. The verification of the existence or lack of accessibility equipment at bus stops and parking areas close to tourist attractions relies on current legislation (NBR 9050/1994) that establishes the right to accessibility for disabled people to transportation, local culture and leisure. An application that facilitates this recognition with low operating costs and high performance was developed using the OS software Quantum GIS 1.0.2, Apache 2.2.4, Mapserver 5.0.2, I3GEO 4.0, PostgreSQL 8.3 and PostGIS 1.3.5. This software is able to integrate the management of tourist areas and the advertisement of tourist information regarding accessibility devices at sights recognized as tourist attractions by Campinas city hall.
The use of AVL (automatic vehicle locator) systems has increased considerably. By using an AVL system, it is possible to know vehicle positions at the dispatch center, which allows the use of several applications, such as safety and security, logistics, and emergency response. High communication and data storage costs, however, lead to a low position update rate with the AVL products available, causing poor track representation, and making the route determined by the vehicle in urban areas almost illegible. This paper proposes a new approach by using intelligent techniques to choose the best position update moment to improve track representations. The principle underlying these techniques is based on vehicle status analysis (speed, direction and timing), which tries to determine when a position update is required, in order to better represent the path that a vehicle has traced, thus avoiding excessive communication and data storage. Therefore, the better the correspondence between the traced track and the real track followed by the vehicle, the greater the added value offered by system applications. This enhancement to the representation of the track allows the creation of new applications in the realm of AVL systems, particularly for situations where accuracy plays an important role.
AMARANTE, R. R. Systematization of gravimetric data processing applied to geoid model determination. 2012. 152 p. Thesis (Doctoral) -
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.