Volume 4, Issue 3

Industrial Engineering and Operations Management - Special Issue (pp. 101-108)

Rui Lima, Dinis Carvalho, Guilherme Vaccaro, Luiz Felipe Scavarda
This Special Issue of the InternationalJournal of Industrial Engineering and Management (IJIEM)features papers selected from the XVIII International Conference on Industrial Engineering and Operations Management (ICIEOM) This editorial paper introduces the special issue and summarizes 10 selected contributions that embrace researchers from Brazil, China, Colombia, Germany, and Portugal.

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Simulation-based Analysis of Integrated Production and Transport Scheduling (pp. 109-116)

Enzo Morosini Frazzon, Joarez Pintarelli, Andre Albrecht
Production and transport scheduling are mostly carried out sequentially due to their complexity and current lack of appropriate heuristics for supporting a desirable integration on the operational level. Especially when oscillations occur, the unbalanced and unstable integration of production and transport systems weaken the competitiveness of supply chains. In this paper, an approach for the integration of production and transport logistics in global supply chains is analysed using a simulation model. The approach is based on a generic framework where the supply chain is structured into a chain of operational planning entities. The test case comprises one original equipment manufacturer and two supplier tiers, as well as corresponding inter-facility transport operations and delivery to customers. This formulation can be applied on a rolling time horizon and takes changing capabilities into account. It was possible to identify that the integrated scheduling can handle oscillations in the production and transport processes by constantly checking the amount of time spent to process and deliver the order. The more frequent this checking occurs, the less time it will take to eliminate the discrepancies. The results also indicate that the proposed integrative approach outperforms the sequential one in dynamic situations. This means that it could help absorb disturbances originated in production and transport systems and therefore sustain the performance of global supply chainsthrough time.

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Pattern recognition of Load Profiles in Managing Electricity Distribution (pp. 117-122)

Adonias Magdiel Silva Ferreira, Carlos Arthur Mattos Teixeira Cavalcante, Cristiano Hora de Oliveira Fontes, Jorge Eduardo Soto Marambio
This works presents a method of selection, classification and clustering load curves (SCCL) which is able to identify a greater diversity of consumption patterns existing in the electricity distribution sector. The method was developed to estimate the features of a sample of load curves so as to identify the consumption behaviour of a population of consumers. The algorithm comprises four steps that extract essential features of a load curve of residential users, seasonal and temporal profiles in particular. The method was successfully implemented and tested in the context of an energy efficiency program developed by a company associated to the electricity distribution sector (Electric Company of Maranhão, Brazil). This program comprised the analysis of the impact of replacing refrigerators in a universe of low-income consumers in some towns in the state of Maranhão (Brazil). Patterns of load profiles using the typing method developed were applied and the results were compared with a well known method of time series clustering already established in the literature, the Fuzzy C-Means (FCM). Based on the main features of a load profile, the analysis confirmed that the SCCL method was capable for identifying a greater diversity of patterns, demonstrating the potential of this method for better characterization of types of demand.This is an important aspect for the process of making decision in the energy distribution sector. Furthermore, a well known index (Silhouette index) was also adopted to quantify the level of uniformity within and between clusters.

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Slimming Lead Times in Courts of Law - A Case Study (pp. 123-130)

Ana Lucia Martins, Jose Crespo de Carvalho
The Court System is often criticized for not performing at its best. Cases take longer than expected. Research based on the Theory of Constraints and logistics took place in order to overcome these difficulties. The purpose of this paper is to identify reasons why civil cases do not flow through the court system as expected, and to discuss ways to shorten lead-times in the court process. A comparative analysis of two case studies, with six court departments and a representative sample of 299 civil summary cases is used. Two levels of analysis are performed: one considering the total period of time a case remains in each activity, the second considering the delays in each activity. Data is analysed using statistical computation. Findings show that although the judge staff and the judge are the main constrains in the system, others may emerge if poorly managed. Recommendations to shorten lead-times are provided.

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Different Types of Inventory Control in Brazilian Companies (pp. 131-140)

Everton Drohomeretski, Fabio Favaretto
Effective inventory control is a requirement for operational processes to run smoothly and requires in turn that inventory data be reliable. Undesirable effects may otherwise be produced in different areas of the organization such as a reduction in service level or a drop in operational efficiency because of unforeseen stoppages or rescheduling of production caused by inventory inaccuracy. This study seeks to identify how different types of inventory control affect inventory accuracy. This is a descriptive research and the approach adopted was the use of multiple cases - seven case studies in Brazilian companies. The main results include a classification of inventory control operations so that the companies could be classified as: high, medium and low inventory accuracy practices. In addition, the study correlates different types of inventory control with the inventory accuracy index for each of the seven companies and shows the relationship between the types of control, the importance attached to inventory control by the organization, the number of inventory items and the accuracy index.

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Supply Chain Risk Management: A Content Analysis Approach (pp. 141-150)

Paula Santos Ceryno, Luiz Felipe Scavarda, Katja Klingebiel, Gokhan Yuzgulec
Although Supply Chain Risk Management (SCRM) has become more popular over the last decade, attempts to synthesize research within this field have seldom been conducted. Aiming to fulfill part of this gap, this paper presents a systematic review of the literature on SCRM using a content analysis approach contemplating three well known electronic data bases (Elsevier, Emerald, and Taylor & Francis Group). Sixty papers published between 2003 and 2012 in 22 peer reviewed international journals have been retrieved. Interest in the subject is growing, as evidenced by the number of papers recently published on different aspects of SCRM. The paper provides a discussion of main definitions available.Although there is no universal definition of the concept, the authors agree that the main issue is the identification and management of risk events that impact supply chains. The collected papers are classified in the theoretical, empirical and theoretical empirical dimensions and in a SCRM conceptual framework based on three different phases: risk identification; risk assessment; and instruments for SCRM. These classifications allowed a reasonable comprehensive assessment of research approaches taken in the current body of literature on the subject. The results highlight the high number of definitions for SCRM, the main topics in the SCRM field and research applications, identify the key issues addressed in these researches, and emphasise remaining gaps that deserve special attention in future research.

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An Overview of Road Cargo Transport in Brazil (pp. 151-160)

Maria da Penha Araujo, Vania Barcellos Campos, Renata Albergaria Bandeira
This study aims to evaluate the operation of the main actors in the Brazilian market of road freight transportation: owner operators and carrier companies. It initially presents an overview of cargo transportation in Brazil, highlighting its characteristics and freight market. Subsequently, in order to characterize the performance of owner operators and carrier companies, a survey is conducted with carriers that act in Sao Paulo – Rio de janeiro. The result of this research enabled us to identify conditions of the fleet and freight costs, besides allowing a comparison between the operation of owner operators and carrier companies.

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Using the Clearing Function to evaluate the Pricing Capacity of Resources at Low Levels of Utilization in Production Planning (pp. 161-172)

Raimundo J. B. de Sampaio, Wenyu Sun, Rafael R. G. Wollmann
It is well known from the daily industrial experience that high levels of throughput in production depend on high levels of work–in–process or releases into the system, and that high levels of work–in–process may increase the total lead time into the systems, decreasing expected revenues. This clearly suggests that sometimes increasing production capacity is in our best interest even before it becomes tight, even though the necessary information for accomplishing this is not provided by most of the approaches used for these issues, and in particular, by classical linear programming models. Recently some authors developed a framework to circumvent this drawback in the approach of linear programming based on the concept of clearing function that strives, together with the approach of linear programming, to allow for the pricing of low levels of capacity utilization. Nevertheless, the resulting new model was not treated directly but approximated by a linear model, which received a classical treatment, revealing very little news. In this paper we treat this new model directly, and furthermore, we took a new approach for the linear model, which in our view, has produced a new and deeper vision for the subject.

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Home Health Care Logistics Management: Framework and Research Perspectives (pp. 173-182)

E. Valentina Gutiérrez, Valentina Gutiérrez, Carlos J. Vidal
Home Health Care (HHC) services are a growing sector in the medical service business. These services are based on a delivery network in which patients are hospitalized at their homes and health care providers must deliver coordinated medical care to patients. The fact that patients and medical staff's homes are considered as a component of the delivery network creates a difference from typical health care organizations and generates a greater complexity on logistics decisions. In this paper we provide a reference framework for HHC logistics management in order to identify research perspectives in the field. With this framework we present a brief review of the current literature in models and methodologies used to support logistics decisions and identify research gaps. In particular, we emphasize the need to develop and implement more integrated methodologies to support decisions at tactical and strategic planning levels and to consider key features from real systems.

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Sustainable Work Environment with Lean Production in Textile and Clothing Industry (pp. 183-190)

Laura C. Maia, Anabela C. Alves, Celina P. Leao
The objective of this paper is to discuss Lean Production (LP) as a work organizational model that fosters a sustainable work environment in the companies. This is achievable through some Lean tools and initiatives that, when applied to the work environment reduces the energy, water consumption, environmental waste and raw-materials consumption and improves leanness and agility. This paper focuses the Textile and Clothing Industry (TCI) and brings up proposals, initiatives and/or projects that are related with Lean Production aims. Traditionally, TCI had been greatly dependent on natural resources: natural fibers, dyes, water, energy among others and a high consumer of water and energy, especially in dyeing and finishing processes. At the same time, these processes have a water and soil pollution problem. In this manner, reduce the consumption of these resources and reduce pollutants should be a major concern for companies and individuals to achieve a sustainable development. In this paper, the authors also present some proposals of how companies may engage in such projects.

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