Basics of qualitative research: Grounded theory procedures and techniques

THE DESIGN AND ANALYSIS OF EXPERIMENTS. By Oscar Kempthorne. New York, John Wiley and Sons, Inc., 1952. 631 pp. $8.50. This book by a teacher of statistics (as well as a consultant for \"experimenters\") is a comprehensive study of the philosophical background for the statistical design of experiment. It is necessary to have some facility with algebraic notation and manipulation to be able to use the volume intelligently. The problems are presented from the theoretical point of view, without such practical examples as would be helpful for those not acquainted with mathematics. The mathematical justification for the techniques is given. As a somewhat advanced treatment of the design and analysis of experiments, this volume will be interesting and helpful for many who approach statistics theoretically as well as practically. With emphasis on the \"why,\" and with description given broadly, the author relates the subject matter to the general theory of statistics and to the general problem of experimental inference. MARGARET J. ROBERTSON

The Design and Analysis of Experiments

https://findresearcher.sdu.dk:8443/ws/files/116118561/reverse_logistics.pdf

Reverse logistics and closed-loop supply chain: A comprehensive review to explore the future

Risk management plays a vital role in effectively operating supply chains in the presence of a variety of uncertainties. Over the years, many researchers have focused on supply chain risk management (SCRM) by contributing in the areas of defining, operationalising and mitigating risks. In this paper, we review and synthesise the extant literature in SCRM in the past decade in a comprehensive manner. The purpose of this paper is threefold. First, we present and categorise SCRM research appearing between 2003 and 2013. Second, we undertake a detailed review associated with research developments in supply chain risk definitions, risk types, risk factors and risk management/mitigation strategies. Third, we analyse the SCRM literature in exploring potential gaps.

https://minerva-access.unimelb.edu.au/bitstream/handle/11343/118650/8.pdf

Supply chain risk management: a literature review

The invention provides control systems and methodologies for controlling a process having computer-controlled equipment, which provide for optimized process performance according to one or more performance criteria, such as efficiency, component life expectancy, safety, emissions, noise, vibration, operational cost, or the like. More particularly, the subject invention provides for employing machine diagnostic and/or prognostic information in connection with optimizing an overall business operation over a time horizon.

System and method for dynamic multi-objective optimization of machine selection, integration and utilization

/pdf/metal-scrap-recycling-4-0-towards-smart-operation-and-3u9cvqh9im.pdf

Metal Scrap Recycling 4.0: Towards Smart Operation And Production Of High-Quality Alloys

The saving of non-renewable energies, as well as the reduction of emissions into the environment, are two crucial objectives of industrial production. The recovery of post-consumer products associated with the use of end-of-life products is part of a context of optimization of these objectives. This recovery maximizes the use of resources from end-of-life products in a circular logic while recording the environmental footprint. This study considers a recycling strategy adapted to the need and urgency to reduce greenhouse gas emissions caused by global warming. The proposed model aims to optimize the profits of the circular manufacturing strategies while minimizing operational costs (collection, sorting, recycling), transport, GHG emissions and recycling. In this paper, a compromise between the gains of CM and the costs associated with it was studied. The robustness of the designed model was tested using a case study based on real-world scenarios. A sensitivity analysis was carried out to study the impact of the emission cost on the overall objective, considering the two options currently offered to industries. The obtained results support companies to take the ecological aspect into account and integrate sustainable development into their strategic axes for their logistics supply chains. 

Improving the Performance of Urban Waste Management Systems in the Context of a Closed-Loop Supply Chain

744 ABSTRACT The integrated production, inventory and preventive maintenance problem (PIPMP) is concerned with coordinating production, inventory and preventive maintenance operations in order to meet customer demand with the aim of minimizing costs. A unified framework is developed allowing production and preventive maintenance to be jointly considered using an age-dependent optimization model, itself based on the minimization of an overall cost function; this cost function for its part includes inventory holding, backlog, and preventive and corrective maintenance costs. We provide optimality conditions for more realistic manufacturing systems and use numerical methods to obtain the optimal preventive maintenance policy and the relevant age-dependent or multiplethreshold-levels production policy, which we refer to as the multiple threshold levels hedging point policy. Numerical examples are included to illustrate the importance and the effectiveness of the proposed methodology

/pdf/on-the-integrated-production-and-preventive-maintenance-3s35pz1uml.pdf

On the integrated production and preventive maintenance problem in manufacturing systems with backorder

Sharing information poses a significant challenge in attempting to integrate and manage occupational health and safety in response to operational risks where autonomous and multiskilled work is performed in uncertain environments. Managers and workers stand to benefit from a model developed as a prototype for an information system that is based on data flow technique, skills characteristic of autonomous and multi-skilled workers, and which rests on systemic analysis of the technological sub-system prevalent within a firm. Our knowledge of econometrics leads us to endorse training and exchanges aimed at promoting awareness of risks and upgrading job know-how among workers. Once the regulated risks and the risks unanimously recognized by health and safety experts have been controlled, we offer here a guide in reaching a preliminary decision that integrates parameters commonly associated with commercial efficiency and diligence in the pursuit of workplace health and safety. Lastly, findings have been validated through a case study carried out among firms engaged in the moving industry.

Modeling the integration of occupational health and safety risks with operational risks associated with autonomous and multi-skilled work performed in uncertain environments

The present work deals with intelligent vehicle fleet maintenance and prediction. We propose an approach based primarily on the history of failures data and on the geographical data system. The objective here is to predict the date of failures for a fleet of vehicles in order to allow the maintenance department to efficiently deploy the proper resources; we further provide specific details regarding the origins of failures, and finally, give recommendations. This study used the Société de transport de Montréal (STM)’s historical bus failure data as well as weather data from Environment Canada. We thank Facebook’s Prophet, Simple Feed-forward, and Beats algorithms (Uber), we proposed a set of computer codes that allow us to identify the 20% of buses that are responsible for the 80% of failures by mean of the failure history. Then, we deepened our study on the unreliable equipments identified during the diffusion of our computer code This allowed us to propose probable predictions of the dates of future failures. To ensure the validity of the proposed algorithm, we carried out simulations with more than 250,000 data. The results obtained are similar to the predicted theoretical values. 

Jean-Pierre Kenné

Papers

Metal Scrap Recycling 4.0: Towards Smart Operation And Production Of High-Quality Alloys

Improving the Performance of Urban Waste Management Systems in the Context of a Closed-Loop Supply Chain

On the integrated production and preventive maintenance problem in manufacturing systems with backorder

Modeling the integration of occupational health and safety risks with operational risks associated with autonomous and multi-skilled work performed in uncertain environments

Failure Prediction and Intelligent Maintenance of a Transportation Company’s Urban Fleet