Sidney Araujo Cordeiro
Universidade Federal de Viçosa
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Publication
Featured researches published by Sidney Araujo Cordeiro.
Cerne | 2012
Sandra Maria Ferreira Couri Petrauski; Gláucio Marcelino Marques; Márcio Lopes da Silva; Sidney Araujo Cordeiro; Naisy Silva Soares
This study aimed to analyze the competitiveness of Brazilian lumber on the international market in the period 2000 to 2007. The methodological tools used to compare the competitiveness of Brazil with its main competitors were the rates of Relative Position Marketing (PRM) and Revealed Comparative Advantage (VCR). The results point out to the fact that, although Brazil has proved competitive, it is necessary to use marketing strategies aimed at increasing the countrys competitiveness in this sector.
Brazilian Journal of Rural Economy and Sociology | 2011
Eliane Pinheiro de Sousa; Naisy Silva Soares; Sidney Araujo Cordeiro; Márcio Lopes da Silva
This work aims to analyze the competitiveness of pejibaye palm heart production in Espirito Santo and Sao Paulo states by applying the Policy Analysis Matrix (PAM). Results show that the private and social profitabilities of pejibaye palm heart production and trading were positive in both states and are higher than those obtained by traditional crops, such as soybean, and by forest products, such as natural rubber. Sao Paulo production was more profitable, being thus more competitive than Espirito Santo. However, these profitabilities could have been higher if producers were not exposed to negative effects of distorted public policies.
Revista Arvore | 2010
Sidney Araujo Cordeiro; Márcio Lopes da Silva; Laércio Antônio Gonçalves Jacovine; Sebastião Renato Valverde; Naisy Silva Soares
The objective of this study was to carry out the financial analysis and the risk of investment simulation in projects for reforestation with eucalyptus aiming to produce charcoal and wood, with or without IEF/MG forest fomentation. A financial analysis was performed through the forestry project evaluation methods, and the risk analysis was carried out through the Monte Carlo simulation technique by @RISK software. Among the projects tested, those that aimed for the production of charcoal with IEF/MG forest fomentation got the best financial results. It was verified that the costs of forest crop, transport, and charcoal-burning together are responsible for the largest portion of the total cost. The risk analysis simulation showed that the variables which affected Net Present Value (NPV) for the projects whose production is charcoal, according to the ranking of importance (R), were: products price, forest productivity, discount rate, harvesting cost and cost of implantation. In terms of the production of wood, it was observed that the order of importance when discussing the cost of harvesting and implantation, the latter was the most negatively influential of the VPL on the project without IEF forest fomentation.
Revista Arvore | 2013
Robson José de Oliveira; José Marinaldo Gleriani; Carlos Cardoso Machado; Reginaldo Sérgio Pereira; Sidney Araujo Cordeiro
RESUMO – As estradas florestais sao o principal meio de integracao entre as florestas e as empresas. A partir do exposto, percebe-se a necessidade nao apenas da correta aplicacao de atividades de manutencao, mas tambem de se determinar o tempo exato para tal intervencao. Partindo desse pressuposto, este trabalho apresenta os resultados da apreciacao de dois metodos de classificacao da qualidade de estradas nao pavimentadas, com o intuito de se verificar a aplicabilidade dos mesmos na caracterizacao das estradas florestais brasileiras e servir como base para um sistema de gestao das operacoes de manutencao destas vias. Foram medidos os principais defeitos em estradas florestais seguindo um metodo denominado de Indice de Condicao de Rodovia Nao Pavimentada (ICRNP), que serviram de base para gerar um banco de dados para testar a eficiencia do uso de redes neurais artificiais (RNA) na administracao das estradas florestais, minimizando custos e paralisacoes de trafego. Concluiu-se que a utilizacao das redes neurais artificiais apresentou resultados superiores ao metodo do ICRNP.
Revista Arvore | 2011
Naisy Silva Soares; Eliane Pinheiro de Sousa; Sidney Araujo Cordeiro; Márcio Lopes da Silva
This article analyzes the competitiveness of pejibaye heart of palm production in Brazil, doing one comparative study among the productive system practiced in flat areas with irrigation and in hilly areas without irrigation. For this, the policy analysis matrix (PAM) was utilized. The results showed evidence that the two production systems considered had positive profitability in domestic and international markets, demonstrating that the production of pejibaye palm of heart is competitive; however, the profits were reduced by the public policies adopted.
Cerne | 2010
Sidney Araujo Cordeiro; Márcio Lopes da Silva
Neste estudo, objetivou-se realizar a analise financeira e uma simulacao de risco de investimento em um projeto de producao de palmito de pupunha (Bactris gasipaes Kunth.). A analise financeira foi realizada mediante a aplicacao dos metodos de avaliacao de projetos: VPL, VAE, TIR e B/C; e para a analise de risco utilizou-se a tecnica de simulacao de Monte Carlo, mediante o programa @RISK. Concluiu-se que o projeto de producao de palmito de pupunha e viavel, com VPL de R
Revista Arvore | 2018
Rafaella Silva Pereira; Sidney Araujo Cordeiro; Marcio Leles Romarco de Oliveira; Cristiano Christófaro Matosinhos; José Benedito Guimarães Júnior
3.549,08; TIR de 19%; B/C maior que 1; e o VAE obtido foi de R
VIII Simpósio Brasileiro de Pós-Graduação em Ciências Florestais | 2014
Ricardo Tuller Mendes; Kaio Cesar Mendes da Silva Nery; Thiago Rodrigues Alves; Sidney Araujo Cordeiro; Robson José de Oliveira; Antônio Joaquim Oliveira
1.049,12. A analise de risco de investimento mostrou que o projeto apresenta uma probabilidade de 5% de se obter um valor negativo para o VPL. As variaveis que afetaram o VPL, na sua ordem de importância, foram: preco de venda do palmito, produtividade e taxa de juros.
Revista Arvore | 2014
Naisy Silva Soares; Márcio Lopes da Silva; Sidney Araujo Cordeiro
1 Received on 10.04.2017 accepted for publication on 23.02.2018. 2 Universidade Federal dos Vales do Jequitinhonha e Mucuri, Graduada em Engenharia Florestal, Diamantina, MG-Brasil. E-mail: <[email protected]>. 3 Universidade Federal dos Vales do Jequitinhonha e Mucuri, Departamento de Engenharia Florestal, Diamantina, MG-Brasil. E-mail: <[email protected]>,<[email protected]> and <[email protected]>. 4 Universidade Federal de Lavras, Departamento de Engenharia, Lavras, MG-Brasil. E-mail: <[email protected]>. *Corresponding author.
Revista Agrogeoambiental | 2011
Danubia Rejane Silva Brito; Waldeídes Castro Sousa; Joabel Raabe; Sidney Araujo Cordeiro
O objetivo deste trabalho foi realizar um levantamento e fazer uma analise comparativa dos principais custos operacionais das maquinas florestais: forwarder, harvester e slignshot em quatro subsistemas de colheita em florestas de eucalipto. A analise comparativa englobou um estudo dos custos operacionais dentro de cada subsistema sendo eles divididos da seguinte forma: Subsistema 1: Harvester (Partek 911 + Cabecote 965 BR) e Forwarder (Partek 890 6X6 (18 t)).Subsistema 2: Harvester (Caterpillar 320 BL + Cabecote 965 BR) e Forwarder (Partek 890 6X6 (18 t)).Subsistema 3: Slingshot (Timberjack 608 B HD + Cabecote RISLEY) e Forwarder (Partek 890 6X6 (18 t)).Subsistema 4: Slingshot (Caterpillar 320 BL + Cabecote RISLEY) e Forwarder (Partek 890 6X6 (18 t)).O subsistema 4 Slingshot (Caterpillar 320 BL + Cabecote RISLEY) + Forwarder (Partek 890 6X6 (18 t)) apresentou um menor custo operacional em relacao aos outros subsistemas, correspondendo a uma reducao de ate 15,58% no custo operacional total. Os subsistemas que utilizaram o Havester apresentaram menor consumo de combustivel.