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Papers by Nilson Tadeu Ramos Nunes

Research paper thumbnail of A Mixed Load Solution for the Rural School Bus Routing Problem

2015 IEEE 18th International Conference on Intelligent Transportation Systems, 2015

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Research paper thumbnail of Developing a GIS for Rural School Transportation in Minas Gerais, Brazil

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Research paper thumbnail of A demand classification scheme for spare part inventory model subject to stochastic demand and lead time

Production Planning & Control, 2015

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Research paper thumbnail of Assessing model for adoption of new logistical services: An application for small orders of goods distribution in Brazil

Procedia - Social and Behavioral Sciences, 2010

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Research paper thumbnail of Concentration of bauxite fines via gravity concentration

Rem: Revista Escola de Minas, 2009

Companhia Brasileira de Alumínio (CBA) has a preparation plant at Itamarati de Minas, MG. This pl... more Companhia Brasileira de Alumínio (CBA) has a preparation plant at Itamarati de Minas, MG. This plant washes two different kinds of bauxite ore, one originating from the laterization of gnaisses and another from amphybolites. Both ores have the same behavior in the coarser size fractions but behave differently under 0.355 mm (42# Tyler). In these small sizes, gneissic ores are rich in quartz and amphybolitic ores are rich in iron and titanium bearing ores. The unit operations are: scrubbing of the feed in drum scrubbers, desliming in cyclones, and screening of the scrubbed bauxite in high frequency screens (0.355 mm) - the +0.355 mm product is a final concentrate. The -0.355 mm fraction is desliming in two stage cyclones and goes to a fines gravity concentration circuit of Reichert spirals complemented by magnetic separation of the light product from the spirals. The research work, including mineralogy, process development, batch tests and pilot plant tests, is described and compared...

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Research paper thumbnail of A real geographical application for the School Bus Routing Problem

17th International IEEE Conference on Intelligent Transportation Systems (ITSC), 2014

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Research paper thumbnail of Network of healthy communities of Rio de Janeiro -- Brazil

Promotion & Education, 2007

Poor communities in Rio de Janeiro, which are known as favelas, suffer from various problems rela... more Poor communities in Rio de Janeiro, which are known as favelas, suffer from various problems related to poor housing, poverty, unemployment, violence and organized crime, and lack of access to basic services, such as health care and education. In order to tackle these determinants, and inspired by WHO's international Healthy Communities/Cities movement, the Network of Healthy Communities of Rio de Janeiro was formed in 2004. The Network is coordinated by the Center for Health Promotion (CEDAPS) and now includes more than 100 community groups and organizations in the state of Rio de Janeiro. Their aim is to promote health, community development and equity through community empowerment, participation, capacity building and advocacy. The paper describes the work that has been done since the Network's inception and the challenges which they face to reach their goals in the context of a country like Brazil. The Network represents an important landmark of how poor populations can ...

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Research paper thumbnail of Choline acetyltransferase detection in normal and denervated electrocyte from Electrophorus electricus (L.) using a Confocal Scanning Optical Microscopy Analysis

Anais da Academia Brasileira de Ciências, 2000

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Research paper thumbnail of A mixed load capacitated rural school bus routing problem with heterogeneous fleet: Algorithms for the Brazilian context

Expert Systems with Applications, 2016

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Research paper thumbnail of A Mixed Load Solution for the Rural School Bus Routing Problem

2015 IEEE 18th International Conference on Intelligent Transportation Systems, 2015

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Research paper thumbnail of Developing a GIS for Rural School Transportation in Minas Gerais, Brazil

Bookmarks Related papers MentionsView impact

Research paper thumbnail of A demand classification scheme for spare part inventory model subject to stochastic demand and lead time

Production Planning & Control, 2015

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Assessing model for adoption of new logistical services: An application for small orders of goods distribution in Brazil

Procedia - Social and Behavioral Sciences, 2010

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Concentration of bauxite fines via gravity concentration

Rem: Revista Escola de Minas, 2009

Companhia Brasileira de Alumínio (CBA) has a preparation plant at Itamarati de Minas, MG. This pl... more Companhia Brasileira de Alumínio (CBA) has a preparation plant at Itamarati de Minas, MG. This plant washes two different kinds of bauxite ore, one originating from the laterization of gnaisses and another from amphybolites. Both ores have the same behavior in the coarser size fractions but behave differently under 0.355 mm (42# Tyler). In these small sizes, gneissic ores are rich in quartz and amphybolitic ores are rich in iron and titanium bearing ores. The unit operations are: scrubbing of the feed in drum scrubbers, desliming in cyclones, and screening of the scrubbed bauxite in high frequency screens (0.355 mm) - the +0.355 mm product is a final concentrate. The -0.355 mm fraction is desliming in two stage cyclones and goes to a fines gravity concentration circuit of Reichert spirals complemented by magnetic separation of the light product from the spirals. The research work, including mineralogy, process development, batch tests and pilot plant tests, is described and compared...

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Research paper thumbnail of A real geographical application for the School Bus Routing Problem

17th International IEEE Conference on Intelligent Transportation Systems (ITSC), 2014

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Research paper thumbnail of Network of healthy communities of Rio de Janeiro -- Brazil

Promotion & Education, 2007

Poor communities in Rio de Janeiro, which are known as favelas, suffer from various problems rela... more Poor communities in Rio de Janeiro, which are known as favelas, suffer from various problems related to poor housing, poverty, unemployment, violence and organized crime, and lack of access to basic services, such as health care and education. In order to tackle these determinants, and inspired by WHO's international Healthy Communities/Cities movement, the Network of Healthy Communities of Rio de Janeiro was formed in 2004. The Network is coordinated by the Center for Health Promotion (CEDAPS) and now includes more than 100 community groups and organizations in the state of Rio de Janeiro. Their aim is to promote health, community development and equity through community empowerment, participation, capacity building and advocacy. The paper describes the work that has been done since the Network's inception and the challenges which they face to reach their goals in the context of a country like Brazil. The Network represents an important landmark of how poor populations can ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Choline acetyltransferase detection in normal and denervated electrocyte from Electrophorus electricus (L.) using a Confocal Scanning Optical Microscopy Analysis

Anais da Academia Brasileira de Ciências, 2000

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Research paper thumbnail of A mixed load capacitated rural school bus routing problem with heterogeneous fleet: Algorithms for the Brazilian context

Expert Systems with Applications, 2016

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