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Active learning in supply chain management course
Get PDFActive Learning in the Supply Chain Management Course. This paper presents a new active learning approach implemented in the Supply ChainManagement (SCM) course in the Industrial and Manufacturing Engineering Department.Previously, in this course the fundamentals of supply chain and logistics, drivers of supply chainperformance and analytical tools necessary to develop solutions for a variety of SCM and designproblems were mainly covered through class lectures and case study discussions. In the past fewyears, due to the growth in the needs of the organizations to “Lean” principles, the course wasmodified to satisfy this requirement more efficiently. For this purpose a new hands on experienceworkshop was utilized where the students could physically simulate the implementation of leanprinciples in a supply chain network. Through this simulation, students learned the fundamentalconcepts of a supply chain such as demand management, inventory management, role ofinformation system and coordination, transportation, and finance and accounting. In addition thestudents had the opportunity to actively practice the lean concepts such as Kanban, pull andpush, just-in-time production systems, and product and process design by being physicallyinvolved in a teamwork educational game. This simulation game could enhance materialretention and foster critical thinking among the students. Moreover, several directedpresentations by speakers invited from diverse industries and ISM (Institute of Supply ChainManagement) were arranged to expose the students to some real case studies and then someassignments were defined to promote higher order of thinking. To assess the effectiveness of thecourse restructure and the applied pedagogical methods, a survey is conducted to measurestudents’ satisfaction and evaluate their perception of knowledge about the lean supply chainmanagement, and the results are analyzed
A Stochastic Model for a Military Entrance Processing Station
No full textThis study aims to investigate the current productivity of a generic Military Entrance Processing Station, a MEPS facility. MEPS is a key gateway into any branch of the military and like any other recruitment office it can also face bottlenecks in its facilities. Using Stochastic Modelling, this paper aims to show how a generic MEPS facility operates by focusing on medical screening. The first stages of the study are to model a generic facility operating under current procedures as observed at the Troy, Michigan, facility. From the simulated model, we identify areas of improvements resulting in an increase in processing the number of applicants by a single facility on any given day. An increase in the number of applicants processed will also result in an increase in the value on a per processor (employee) basis. This will also help to identify areas where the workload can be spread across multiple processors to balance an overworked resource. Additionally, understanding where the bottlenecks occur in the system will enable managers to schedule their employees effectively or change the process order to improve the allocation of their resource
Airflow Optimization in Retail Cabinets and the Use of CFD Modelling to Design Cabinets
No full textIt is evident that improvements in performance of refrigerated units (cabinets, display cases, etc.) is becoming a necessity. Some of these improvements are focused on the hardware involving the compressor, evaporator, lighting design and heat transfer of such units. However, additional gains in the performance of refrigerated cabinets can be achieved by altering the airflow pattern and characteristics inside (or outside) these cabinets. This chapter summarizes ongoing research on this, to demonstrate the application of a hybrid approach which combines computational fluid dynamics (CFD) and experimental methods to understand and map the airflow pattern and characteristics. The main focus is on open vertical refrigerated display cases (OVRDCs). The chapter discusses the infiltration rate in OVRDCs by using hybrid CFD and experimental tools. CFD provides detailed local information about the fluid flow, giving insight into ways to alter a design for better performance
A General-Purpose Multiphase/Multispecies Model to Predict the Spread, Percutaneous Hazard, and Contact Dynamics for Nonporous and Porous Substrates and Membranes
Get PDFA computational model to solve the coupled transport equations with chemical reaction and phase change for a liquid sessile droplet or the contact and spread of a sessile droplet between two approaching porous or non-porous surfaces, is developed. The model is general therefore it can be applied to toxic chemicals (contact hazard), drug delivery through porous organs and membranes, combustion processes within porous material, and liquid movements in the ground. The equation of motion and the spread of the incompressible liquid available on the primary surface for transfer into the contacting surface while reacting with other chemicals (or water) and/or the solid substrate are solved in a finite difference domain with adaptive meshing. The comparison with experimental data demonstrated the model is robust and accurate. The impact of the initial velocity on the spread topology and mass transfer into the pores is also addressed
Effects of Pretensioners and Load Limiters on 50th Male and 5th Female Seated in Rear Seat during a Frontal Collision
No full textThis study was conducted to explore the effect of various combinations of seatbelt-related safety components (namely, retractor pretensioners and load limiting retractors) on the adult rear passenger involved in a frontal collision. The study was conducted on a 50th Male and a 5th Female Hybrid III ATD in the rear seat of a mid-sized sedan. Each ATD was seated in an outboard position with 3-point continuous lap-shoulder belts. On these belts were combinations of pretensioners and load limiters. Since the main objective of this test series was to cross-compare the seatbelt configurations, front seats were not included in the buck in order to avoid uncontrollable variables that would have affected the comparison study if the possibility of contact with the front seat were allowed. Nevertheless, there was a short barrier devised to act as a foot-stop for both ATDs. A design of experiment (DOE) was constructed as a full factorial with and without a pretensioner and three types of load limiters. Each ATD was tested with a progressive load limiter (PLL1). Additionally, the 50th Male was tested with a self-adaptive load limiter (SALL) and the 5th Female was tested with a second type of a progressive load limiter (PLL2). The test pulse was designed to approximate a 35 mph (56 kph) frontal rigid barrier test of a four-door sedan. In summary, for the specific configurations reported herein, it was found that pretensioners were an appreciable factor in improving ATD values, and that load limiters had a greater positive effect in the absence of pretensioners and more so for the 50th Male than for the 5th Female