Operations and Supply Chain Management Commons^™

Uncovering The Dirty Secrets Of A Food Paradise: Young Journalists Go Undercover, Estelle Low, Miak Aw

Social Space

Singapore is universally known as a food paradise, but far less is known about the enormous amount of waste generated daily by individuals, supermarkets, food outlets and hotels. 20-something investigative journalists Miak Aw and Estelle Low go undercover to shed light on how much we waste as a nation and why this needs to change.

An Hsi Report: Adopting A Cage-Free Production Policy For Animal Products In Brazil, Humane Society International

HSI REPORTS

Farm animal welfare is becoming an important concern for governments, producers, and consumers worldwide. In particular, intensive confinement systems, such as battery cages and gestation crates, have been acknowledged as severely impairing to the physical comfort and expression of natural behaviors of animals. The European Union and select states in the United States have already passed bills eliminating these housing systems over the next several years. Numerous international retail and food production companies, including Burger King (North America), Smithfield Foods, and McDonald’s (Europe) are committed to gradually eliminating the use and sale of eggs and pork produced via intensive confinement …

A Critical Review Of Electrical Water-Bath Stun Systems For Poultry Slaughter And Recent Developments In Alternative Technologies, Sara J. Shields, A. B. M. Raj

Agribusiness Collection

Prior to slaughter, most farmed birds move through a constant-voltage, multiple- bird, electrical water-bath stun system. Using this system subjects live birds to stressful and painful shackling, and the potential exists for them to receive prestun electric shocks and induction of seizures while still conscious. The existing elec- trical water-bath stunner settings, particularly those used in U.S. slaughter plants, are not necessarily based on sound scientific data that they produce a consistent, immediate stun, and research indicates that they are not effective in all birds. Further, in multiple-bird, electrical water-bath systems, birds may miss the stunner completely. Evidence suggests that …

The Welfare Of Animals In The Pig Industry

Agribusiness Reports

The discordance between the behavioral needs of pigs and the life afforded to those raised commercially for the meat industry has created many animal welfare problems. Methods of pig production have changed substantially over the last several decades, and industrialized confinement operations have largely overtaken small, diversified farms. Overcrowded in indoor, barren environments, pigs in commercial production facilities are offered little opportunity to display their full range of complex social, foraging, and exploratory behavior. Behavioral abnormalities, such as tail-biting and aggression, arise due to environmental and social deficiencies. Poor air quality and intensive confinement may lead to health problems, and …

The Welfare Of Piglets In The Pig Industry

Agribusiness Reports

Pig production has changed dramatically over the last several decades, and most piglets are now raised on industrialized commercial operations that confine thousands of animals on one site. In these facilities, piglets are born and reared under conditions that dramatically contrast with the natural environment they are biologically adapted to fit. In nature, a mother sow builds a nest of twigs and leaves for the birth of her litter, and, after several days, the piglets gradually begin to leave the nest, explore their environment by rooting and nibbling, and slowly integrate into a larger family group. Piglets on commercial production …

Welfare Issues With Furnished Cages For Egg-Laying Hens

Agribusiness Reports

Furnished cages were developed in response to criticisms about conventional battery-cage confinement of laying hens in commercial egg production. Battery cages—small, barren, wire enclosures—restrictively confine the birds, depriving them of the opportunity to display many important patterns of behavior. In contrast, furnished cages are typically equipped with a nest box, perch, and dustbathing area, thereby providing more behavioral outlets than conventional cages. However, similar to conventional battery cages, furnished cages provide an unacceptably limited amount of space per bird; prevent many important locomotory activities, including running, jumping, flying, and wing-flapping; and constrain perching, dustbathing, and nesting. The severe locomotory restriction …

The Impact Of Animal Agriculture On The Environment And Climate Change In Brazil

Agribusiness Reports

The intensification of farm animal production in industrialized agricultural systems, or factory farms, compromises animal welfare and degrades the environment. Animal agriculture inefficiently consumes natural resources, contributes to deforestation, and produces immense quantities of animal waste, threatening water and air quality and contributing to climate change. The Food and Agriculture Organization (FAO) of the United Nations estimated in 2006 that animal agriculture was responsible for 18% of global, anthropogenic, or humaninduced, greenhouse gas emissions and was ―by far the single largest anthropogenic user of land."

Understanding Mortality Rates Of Laying Hens In Cage-Free Egg Production Systems

Agribusiness Reports

In cage-free egg production systems, concerns have been raised over hen mortality rates. High mortality is an obvious indicator of poor welfare, and problems should be addressed without delay. It is important to note, however, that mortality can vary substantially between hen flocks, and that some cage-free systems have healthy flocks that do not suffer substantial death losses. These systems can serve as models for the rest of the industry, since mortality is not inherent to any particular system, but a consequence of how well the system is managed.

Adopting A Cage-Free Production Policy For Animal Products In Brazil

Agribusiness Reports

Farm animal welfare is becoming an important concern for governments, producers, and consumers worldwide. In particular, intensive confinement systems, such as battery cages and gestation crates, have been acknowledged as severely impairing to the physical comfort and expression of natural behaviors of animals. The European Union and select states in the United States have already passed bills eliminating these housing systems over the next several years. Numerous international retail and food production companies, including Burger King (North America), Smithfield Foods, and McDonald’s (Europe) are committed to gradually eliminating the use and sale of eggs and pork produced via intensive confinement …

Lululemon’S Commitment To The Environment: A Tangle Of Seaweed, Suppliers, And Social Responsibility, A. Erin Bass

Marketing and Management Faculty Proceedings & Presentations

It was the morning of Wednesday, November 14, 2007. The article on the front page of the New York Times Business Section read “‘Seaweed’ Clothing Has None, Tests Show.” The story asserted that one of Lululemon’s product lines, VitaSea, which purported to contain a seaweed fiber designed to release marine amino acids, minerals and vitamins into the skin upon contact with moisture, contained no such ingredient. Both Chip Wilson, Chairman and Founder of athletic wear retailer Lululemon, and Robert Meers, Lululemon’s CEO, were about to embark on their first damage-control mission since the company’s Initial Public Offering in July. This …

Supply Chain Integration: Cluster Analysis Of The Impact Of Span Of Integration, Vijay R. Kannan, Keah Choon Tan

Management Faculty Publications

Purpose

This paper aims to explore whether firms that integrate only with partners adjacent to them in the supply chain exhibit different patterns of supply chain practice and performance than those that also integrate with partners more distant in the supply chain.

Design/methodology/approach

Cluster analysis of survey data is used to partition firms based on the span of the supply chain involved in their integration efforts.

Findings

Firms with a broad span of integration have a greater focus on alignment with suppliers and customers, and have more of a supply chain focus than those with a narrow span. They also …

Supply Chain Information And Relational Alignments: Mediators Of Edi On Firm Performance, Keah Choon Tan, Vijay R. Kannan, Chin-Chun Hsu, G. Keong Leong

Management Faculty Publications

Purpose: The purpose of this paper is to examine the effects of inter-organization information exchange on supply chain information and relational alignment. Drawing on literature on information systems, supply chain management, and logistics, the paper aims to present a multidimensional framework for considering electronic data interchange (EDI) adoption in supplier management and its effect on information and relational alignment. Design/methodology/approach: Theories drawn from resource-dependent and transaction cost economics, and the resource-based view of the firm were used to establish hypotheses. Structural equation modeling using survey data of manufacturing firms was used to test the hypotheses and research model. Findings: Results …

A Remanufacturing News-Vendor With Pricing And Take-Back Pricing, Keyu Lu

Dissertations and Theses Collection (Open Access)

This paper analyzes the problem of a remanufacturing news-vendor with selling and take-back price decision. In our model, the remanufacturer decides selling price, take-back price, and order quantity for new materials. She then uses the stochastic take-back quantity and the new material to meet the stochastic demand comparably to a news vendor setting. We allow demand and take-back supply to be correlated. In this thesis, we study a production problem with dual input sources: raw materials and recycled or remanufactured take-back items. To answer when mixed-sourcing is best, we analyze the model under deterministic setting first, provide criteria for different …

Country Natural Beef: A Maturing Co-Op At The Crossroads, Madeleine E. Pullman, Victoria Villa-Lobos, Zhaohui Wu

Business Faculty Publications and Presentations

A Business Base Study of a Group of Northwest Cattle Ranchers that Formed a Co-op to Market Natural Beef Products, in the Face of economic uncertainty and the rise of corporate farms and ranches. Provides an overview of the cattle ranching industry, the history of the co-op, its economic outlook, and future challenges.

Aircraft Leasing With Contracts, Qiong Zuo

Dissertations and Theses Collection (Open Access)

We study a problem of rental rate pricing and rental contract designing in aircraft leasing industry. In a framework of Stackelberg game, the system is composed of an airline company (carrier) and an aircraft leasing company (lessor). Acting as the leader, the lessor announces daily rental rates and/or provides long-term contracts on a finite horizon with multiple periods. For each period, the carrier determines the aircraft leasing number to adjust the flight capacity, and applies a dynamic pricing policy for air-tickets based on a seasonally stochastic demand and some economic factor, such as oil price. We find the optimal policies …

Accidents Will Happen. Do Safety Systems Improve Warehouse Safety Performance?, Rene B. M. De Koster, B. M. Balk, I Davelaar, M. Martens

11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

Safety is becoming more and more an issue in warehouses. In the literature, effective measures leading to increased occupational health and safety have hardly been researched. Most research focuses on the impact of perceived safety-related leadership of managers and worker safety consciousness on ‘safety climate’ and workers’ safe behavior. We have carried out exploratory research into which measures really improve the safety performance of a warehouse. We particularly focus on the effects of (1) safety-related work procedures, (2) safety leadership, and (3) workers’ safety consciousness. Based on a survey we show that safety leadership and safety-related work procedures significantly drive …

Optimizing The Rearrangement Process In A Dedicated Warehouse, Hector J. Carlo, German E. Giraldo

11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

Determining the optimal storage assignment for products in a dedicated warehouse has been addressed extensively in the Facility Logistics literature. However, the process of implementing a particular storage assignment given the current location of products has not received much attention in the existing literature. Typically, warehouses use downtime or overtime to remove products from their current location and move them to the suggested location. This work presents the Rearrange-While-Working (RWW) policy to optimize the process of rearranging a dedicated warehouse. The RWW policy seeks to relocate products in a warehouse from the initial arrangement to the optimal arrangement while serving …

A New Milp Approach For The Facility Layout Design Problem With Rectangular And L/T Shaped Departments, Yossi Bukchin, Michal Tzur

11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

In this paper we propose a new approach for the facility layout problem (FLP) and suggest new mixed-integer linear programming (MILP) formulations. The proposed approach considers simultaneously the location of the departments within the facility and the internal arrangement of the machines. Two models are suggested, where the first addresses the rectangular department case and the second allows nonrectangular departments defined by an L/T shape. New regularity constraints are developed to avoid irregular department shapes.

Strategic Design Of A Robust Supply Chain, Marc Goetschalckx, Edward Huang

11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

The strategic design of a robust supply chain has as goal the configuration of the supply chain structure so that the performance of the supply chain remains of a consistently high quality for all possible future scenarios. We model this goal with an objective function that trades off the central tendency of the supply chain profit with the dispersion of the profit as measured by the standard deviation for any value of the weights assigned to the two components. However, the standard deviation, used as the dispersion penalty for profit maximization, has a square root expression which makes standard maximization …

Evaluating The Effect Of Operational Conditions And Practices On Warehouse Performance, Andrew L. Johnson

11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

Analyzing warehouse performance across different environments is critical to improving overall productivity and reducing costs. Although two-stage DEA estimators have been shown to be statistically consistent, the finite sample bias of DEA in the first stage carries over to the secondstage regression, which causes bias in the estimated coefficients of the contextual variables. The bias is particularly severe when the contextual variables are correlated with inputs. To address this shortcoming, we apply insights from Johnson and Kuosmanen (2010), who demonstrate that DEA can be formulated as a constrained special case of the Convex Nonparametric Least Squares (CNLS) regression to develop …

Comparing Transport Policies In A Full-Scale 300mm Wafer Manufacturing Facility, J. E. Kiba, S. Dauz`Ere-P´Er`Es, C. Yugma, G. Lamiable

11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

Research in semiconductor manufacturing ideally wants to determine the “best” transport policy to ensure continuous production. Determining such a policy is difficult because it depends on many factors such as the layout, the product types, the equipment, etc. Most of the transport policies found in the literature combine dispatching policies (scheduling of transport requests) and routing policies (selection of the path to move from one point to another). This paper investigates a policy called "minimum service" which consists in keeping a minimum number of available vehicles in bays, so that they can quickly answer transport requests and empty travel times …

The Human-Centric Warehouse, Kevin R. Gue

11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

In theory and in practice, the objective of warehouse design has long been to meet operational requirements of throughput and service performance at minimum cost. A natural product of this “bottom line” approach has been warehouse buildings and operations ill-suited to the humans who spend their working lives interacting with them. We offer an explanation for the current approach, and argue that a new approach— a new paradigm —is needed. We then describe a comprehensive approach to warehouse design that includes human well-being as a primary goal.

Forklift Routing In Warehouses Using Dual-Commands And Stackable Pallets, Ahmed Hassan, Bill Ferrell

11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

This research determines time optimal routes for loading and picking pallets that can be stacked on top of each other during transport in a manual warehouse that only contains full pallets and utilizes single deep storage. This research was motivated by the fact that we are seeing this situation on an ever increasing basis, particularly in warehouses that supply parts to automotive assembly. In practice, forklift drivers have developed strategies to take advantage of this opportunity but to our knowledge there is no literature that addresses this problem rigorously. The important features of this work are that a time based …

Plug-And-Work Material Handling Systems, Kai Furmans, Frank Schonung, Kevin R. Gue

11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

One disadvantage of automated material handling systems is their relative Inflexibility: once racks are installed and conveyors are laid, making even mi-nor changes to a system can be cumbersome and expensive. However, recent progress in the capabilities and cost of basic system components, such as controllers, drives, and sensors, has made possible a new class of material handling systems having a much higher degree of flexibility. We propose underlying de- sign principles for such systems and describe several prototype plug-and-work" systems, which feature decentralized control and ease of reconfiguration.

Control Policies For A Dynamic Storage System With Multiple Lifts And Shuttles, Iris F.A. Vis, Hector J. Carlo, Paloma Diaz, Maria E. Laboy, Bruno Vanwijgaarden

11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

New types of Automated Storage and Retrieval Systems, able to achieve high throughput levels, are continuously being developed and require new control polices to take full advantage of the developed system. In this paper we study a dynamic storage system as developed by Vanderlande Industries consisting of a conveyor, two lifts, multiple transfer shuttles, and a storage rack. One of the decision problems for this system is the scheduling problem of the two lifts. In other words, which lift is going to handle which request and in which order. In this paper, we derive an integrated look-ahead heuristic based on …

New Start-Up Company Makes Parking A Whole Lot Smarter!, Arijit Sengupta

Management Information Systems Faculty Publications

Whether it’s parking at a major event, or just getting into campus, one of the biggest headaches of our daily routines comes from the commute, and sometimes the hardest part is what comes in the end – finding a parking spot. SmartRF Solutions, a new startup company founded by Dr. Arijit Sengupta and his business partner, provides custom solutions for AVI enabled parking systems, starting from basic access control systems to complex end-to-end systems for large parking chains.

Implementation Success Of Clinician Information Systems In Healthcare Contexts, Vijay Raghavan, Xiaoni Zhang, Anand Jeyaraj

Management Information Systems Faculty Publications

The success of information systems in healthcare contexts is becoming increasingly important as the healthcare profession continues to adopt information systems for its internal operations. Using the DeLone and McLean model of information systems success that has found traction in a variety of research contexts, we develop a model for examining the success of clinician information systems. Our research model, while grounded in prior literature on information systems success, also benefits from insights gained from preliminary interviews and surveys of healthcare professionals and clinicians. The pilot round of data collection is planned for next month and actual data collection for …

Isscm Graduating Cohort, 2010, Raj Soin College Of Business, Wright State University

ISSCM Master Cohort Posters

Poster congratulating the 2010 Graduating Cohort from the Master of Information Systems and the Master of Science in Logistics and Supply Chain Management Programs.

Utilisation Of Foreign Trade Zones In The Global Supply Chain: An Exploratory Study, Hokey Min, Thomas E. Lambert

Management Faculty Publications

Foreign Trade Zones (FTZs) are considered duty-free areas and, thus, not governed by the usual customs and tariff controls. In other words, the merchandise permitted in the FTZ may be stored, sold, exhibited, labelled, repacked, assembled, distributed and mixed with other merchandise without paying customs duty until merchandise is released from the zone. Deferred customs duties in the FTZs can contribute significantly to the profitability of the Multinational Firms (MNFs) that get involved in global supply chain activities. Thus, the utilisation of FTZs is believed to have a positive impact on export/import operations and the location decisions of MNFs. Despite …

Critical Factors In Project Success: A Study Of Public Sector Construction Projects In Malaysia., Wan Maimun Wan Abdullah

Student Works (2010-2019)

The importance of the construction industry to nation building necessitates that project implemented achieves project success. However, studies and evidence have shown that there is a low probability in consistently achieving project success. Nevertheless, it seems that the definition of project success and how to achieve project success is quite illusive. For more than a century, researchers have been grappling with its definition but the concept remained ambiguous. From the early identification of time, cost and quality as elements of project success, researchers have added many other outcomes and objectives including stakeholders, project manager, communication, leadership, project management, organization structure, …