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About

PhD student in Industrial Engineering at University of Porto, master in Production Engineering at Federal University of Santa Maria (2014), specialist in Business Management at Fundação Getúlio Vargas and Mechanical Engineer graduated from the Federal University of Santa Maria. I have experience in the Production Systems, Strategic Organizational Management, Operational Research and Cutting and Packing Problems.

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Publications

2017

A performance measurement decision support system method applied for technology-based firms' suppliers

Authors
Mairesse Siluk, JCM; Kipper, LM; Benitez Nara, EOB; Neuenfeldt Junior, AL; Dal Forno, AJ; Soliman, M; da Silva Chaves, DMD;

Publication
JOURNAL OF DECISION SYSTEMS

Abstract
The present article proposes a mathematical decision support system model to measure the performance of incubated technology-based firms (TBFs) suppliers. The research was conducted based on three steps: (1) a literature review, in order to parameterise the research in relation to the theme; (2) the construction of a measuring system, based on the presumptions permeated by the analytic hierarchy process (AHP); and (3) the application of the system at three companies. The findings demonstrated the mathematical modelling developed is capable of providing satisfactory results to the reality of the sector studied, presenting the situation of the suppliers evaluated, independent of the nature of the indicated critical success factors (CSFs). Also, this tool supports companies by providing a strong foundation to organise the information regarding the service level delivered by each supplier, according to previous research on the theme.

2017

Avaliação da eficiência técnica dos Cursos de Administração no Brasil.

Authors
Soliman, M; Siluk, JCM; Neuenfeldt Júnior, AL; Casado, FL;

Publication
Revista de Administração da UFSM

Abstract
Este trabalho teve por objetivo avaliar a eficiência técnica dos cursos de Administração no Brasil, por meio da Análise Envoltória de Dados (DEA), uma técnica não paramétrica introduzida por Charnes, Cooper e Rhodes (1978). Foram utilizados como variáveis do modelo os oito indicadores que compõem o Conceito Preliminar de Cursos (CPC). A amostra foi composta de 1229 cursos de Administração, com base nos resultados do Exame Nacional de Desempenho dos Estudantes (ENADE) de 2009. Como resultado, constatou-se que apenas 1,2% destes cursos podem ser considerados eficientes. Após esta aferição, uma etapa de recomendações foi realizada a fim de propor algumas metas reparatórias aos cursos ineficientes, trazendo-se assim à tona a possibilidade de alcançarem melhores resultados, dados os insumos já disponíveis pelos cursos de Administração.

2016

A surveyonheuristics for the two-dimensional rectangular strip packing problem

Authors
Oliveira, JF; Neuenfeldt, A; Silva, E; Carravilla, MA;

Publication
Pesquisa Operacional

Abstract
Two-dimensional rectangular strip packing problems belong to the broader class of Cutting and Packing (C&P) problems, in which small items are required to be cut from or packed on a larger object, so that the waste (unused regions of the large object) is minimized. C&P problems differ from other combinatorial optimization problems by the intrinsic geometric constraints: items may not overlap and have to be fully contained in the large object. This survey approaches the specific C&P problem in which all items are rectangles, therefore fully characterized by a width and a height, and the large object is a strip, i.e. a rectangle with a fixed width but an infinite height, being the problem’s goal to place all rectangles on the strip so that the height is minimized. These problems have been intensively and extensively tackled in the literature and this paper will focus on heuristic resolution methods. Both the seminal and the most recent approaches (from the last decade) will be reviewed, in a rather tutorial flavor, and classified according to their type: constructive heuristics, improvement heuristics with search over sequences and improvement heuristics with search over layouts. Building on this review, research gaps are identified and the most interesting research directions pointed out. © 2016 Brazilian Operations Research Society.

2016

The performance measurement of innovation and competitiveness in the telecommunications services sector

Authors
Nora, LDD; Siluk, JCM; Júnior, ALN; Soliman, M; Nara, EOB; Furtado, JC;

Publication
International Journal of Business Excellence

Abstract
From the growing trend of the services sector participation in the Brazilian economic scenario, the demand for studies on this subject seek to deepen the understanding about the behaviour of the aspects that influence the occurrence of such evolution. Following this sense, the present study aimed to propose a diagnostic model to measure de performance of innovation and competitiveness in the telecommunications service sector, providing resources to develop strategies, in order to turn the company capable of acting in a position according to direct and indirect main competitors, being development guided by five factors: service production, technology, human resources, finance and marketing. Once constructed the model, the implementation proved to be valid, presenting itself as a practical tool to support managers and consultants in the overall assessment of the company, allowing also to analyse its performance situation regarding to the development of competitive forms of positioning. Copyright © 2016 Inderscience Enterprises Ltd.

2016

The scientific research context of urban transports for Bus Rapid Transit systems applications

Authors
Neuenfeldt Júnior, AL; Siluk, JCM; Paris, SRD;

Publication
Journal of Transport Literature

Abstract