Technical Economical Analysis
Mostrando 1-12 de 119 artigos, teses e dissertações.
-
1. Technological innovation in Córrego do Sítio Mineração - A study of technical and economic aspects by using sensor-based sorting for refractory gold ore
Abstract The mining sector has a fundamental financial and economical role in the country where it practices these activities. In addition to employment creation and social-cultural development, the mining sector brings economic growth to the country. However, the sector is facing challenges due to COVID-19, incidents involving tailings dam facilities, risin
REM, Int. Eng. J.. Publicado em: 2021-01
-
2. Weibull analysis of tensile tested piassava fibers with different diameters
ABSTRACT Environmental considerations in addition to technical, economical and societal benefits are increasingly promoting the substitution of natural fibers for glass fiber in polymer matrix composites. However, natural fibers are heterogeneous in their dimensions, specially the cross section, which plays an important role in their mechanical strength. It
Matéria (Rio J.). Publicado em: 06/12/2018
-
3. Capitalismo tardio e educação profissional : as escolas agrotécnicas federais mineiras de Barbacena, Rio Pomba e Uberlândia (1940-1970)
This research aimed at salvaging the history of creation of three school institutions from Minas Gerais State (Brazil), as far as history, capitalism and education are concerned, focusing on the Professional Education, mainly for the Agricultural Teaching: Uberlândia Campus, belonging to the Federal Institute of Education, Science and Technology of Triângu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/11/2012
-
4. Reajuste e revisão dos contratos de concessão dos serviços públicos de abastecimento de água potável e esgotamento sanitário
The National Law on Basic Sanitation - (LNSB in Portuguese - Law n 11.445/07) establishes the national guidelines for basic sanitation, for the federal policy of basic sanitation and, among other activities, disciplines how public supply services for potable water and sanitary depletion should be provided, setting a new model regulared by an appropriate plan
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/11/2012
-
5. A produção do espaço urbano de Criciúma-SC e seus agentes de transformação / The production of urban Space and its agents of transformation in Criciúma-SC
This dissertation proposes to show the development of the urban production/reproduction space in the city of Criciúma in Santa Catarina through the analysis of the political, economical and social agents involved in this process. This research has as the central contribution the space conception of Henri Lefebvre and its expansion made by Ana Fani Alessandr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/10/2012
-
6. Parâmetros de monitoramento na produção industrial de componentes em zircônia parcialmente estabilizada com óxido de magnésio / Monitoring parameters for the industrial production of pieces made of magnesia-partially-stabilized zirconia
Zirconia has been widely applied on production of structural components, mainly due to its great mechanical properties. However, these properties are associated to the zirconia tetragonal and cubic phases, which are stable only on high temperatures on pure material, being necessary doping the material with some oxides to keep these phases at ambient temperat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/02/2012
-
7. Modelagem do comportamento estrutural estático e dinâmico de lajes nervuradas de concreto armado. / Modeling the static and dinamic structural behavior of reinforced concret slabs.
Several researchers have studied the use of reinforced concrete ribbed slabs in civil engineering structural systems that can be viable when the technical and economical point of view is considered. For this reason, a lot of papers were published in the last years based on the experimental and numerical analysis of this slab type. In this context, several sl
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/01/2012
-
8. Incorporação da variabilidade dos teores para análise de risco de recursos minerais e sequenciamento de lavra
Mining industry continuously investigates proper reconciliation procedures and techniques for mapping possible risks in ore recovery and mine planning. A case study at a Brazilian copper mine investigates the adequacy of using simulated grades for defining high risk areas affecting mine planning and the defined mineral reserves. Conditional simulations were
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
-
9. Utilização da cinza do bagaço da cana-de-açúcar como agregado miúdo em concretos para artefatos de infraestrutura urbana
Brazil is the main sugarcane world-producer and it is the leader in all segments (sugarcane, sugar and alcohol). The waste consisting of sugarcane bagasse is produced at the end of grinding process and it is used to generate energy through burning in boilers. At the end of burning, the ashes of bagasse are often thrown into environment improperly. In this co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2011
-
10. Implementação de um programa computacional para auxilio ao projeto de freios automotivos utilizando técnicas de metodologia de projeto / Implementation of a computer program to aid the design of automotive brakes using techniques of the design methodology
This work presents the development of the informational and preliminary design phases to friction brakes applied to urban vehicles of low cost. The design development of the brake systems for vehicles with less or zero pollutants emissions, with high efficiency depends strongly of the control systems, dirigibility conditions and mainly of the solutions to th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2011
-
11. Assistência técnica e extensão no desenvolvimento e promoção do turismo rural
Until the mid-80s, rural tourism was not very much mentioned in the specific material elaborated to help the development of the rural area. Nevertheless, with changes in the economical structure of the rural zones, this activity started being discussed not only as a way of generating jobs and income, but also as an alternative to minimize rural exodus and he
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
-
12. Análise da viabilidade técnica e econômica para a implantação de um sistema de transporte hidroviário em Porto Alegre / Technical and economical analysis of feasibility for implantation of a waterway transport in Porto Alegre
A necessidade de incentivar o uso da bacia do sudeste é vital para o desenvolvimento do Rio Grande do Sul. Porto Alegre deixou de investir no lago Guaíba nos últimos anos, não percebendo que seu desenvolvimento era retardado. No presente trabalho são demonstradas algumas qualidades e vantagens do transporte hidroviário frente ao transporte rodoviário,
Publicado em: 2011