Simulation Spotlight
New and innovative solutions powered by ExtendSim.
![]() Mesoscopic Discrete Rate Simulation Modeling in the Automotive Industry
2020 November |
Mesoscopic Discrete-Rate-Based Simulation Models for Production and Logistics Planning Tobias Reggelin, Sebastian Lang, and Christian Schauf Published in the Journal of Simulation November 12, 2020 ![]() ![]() |
![]() 2020 October |
![]() Jacek Zabawa, Wroclaw University of Science and Technology Presented at the 35th IBIMA Conference, Seville, Spain April 2020 How might one both prevent and control an epidemic spreading of disease (for example COVID-19) in supermarkets? To answer this question, a simulation approach was proposed. A number of simulation experiments were performed. The likelihood of close contact with a carrier in different ticket queue configurations was compared. Based on the results, several tips and advice was developed for customers and market managers. ![]() |
![]() 2020 September |
![]() Robert Larsson, Lund University Research project in conjunction with the Swedish construction industry's organization for research and development (SBUF) and Cementa AB September 2020 This report presents an integrated simulation-based approach to study the on-site production of concrete frameworks by considering the multiple effects of weather on work task productivity and concrete curing process. The ExtendSim model created reports simulated construction time, cost, and CO2 emissions for a specific construction setup to facilitate planning and decisions related to resource allocation strategies, construction schedules, different concrete types (including climate-improved concrete), and curing measures for different types of expected weather conditions. ![]() |
![]() 2020 July |
![]() Haley Stauffer, Pennsylvania State University Using ExtendSim Research Grant for her Masters of Science in Agricultural and Biological Engineering Poster presentation at the Northeast Agricultural and Biological Engineering Conference, July 2020 Using an ExtendSim Research Grant for her Masters thesis, Ms. Stauffer is providing an academic addition to the existing literature to better improve further knowledge of switchgrass supply chain needs and management. Working in conjunction with Oak Ridge National Laboratory (ORNL), The Center for Bioenergy Innovation, and the US Department of Energy's Office of Science, Ms. Stauffer submitted and was awarded first place in the poster competition at the Northeast Agricultural and Biological Engineering Conference (NABEC). Once her project is completed, ORNL will be utilizing this data to further their efforts in industrial scale research of bioenergy production from switchgrass. ![]() |
![]() 2020 May |
A Portal to Support Models for Assessing Strategies for Hospitals • Responding to COVID-19 and Other Pandemics Collaboration between George Mason University, The World Bank Group, & Johns Hopkins University ![]() • Recommend how to increase capacity by providing alternative standards of care, changing operations,or managing demand • Assess how hospitals can work together to build strong regional responses • Estimate and prioritize critical supply needs to mobilize supply chains and other external supports • Measure the evolving response capacity and capability of hospitals ![]() |
![]() 2020 April |
Usage Intensity in Life Cycle of Real Estate - Quantification of Usage Intensity by Simulation Shujing Deng, Technischen Universität München April 3, 2020 ![]() ![]() |
![]() 2019 October |
Assessing Hospital System Resilience to Events Involving Physical Damage and Demand Surge Bahar Shahverdi, Mersedeh Tariverdi, Elise Miller-Hooks George Mason University • Department of Civil, Environmental, and Infrastructure Engineering • PhD in Transportation Published 25 July 2019 in Socio-Economic Planning Sciences ![]() ![]() |
![]() 2019 June |
A Simulation Study of Sustainable Agri-Food Supply Chain Hagar Amer, Noha Galal, Khaled El-Kilany • Dept of Industrial and Management Engineering • Arab Academy for Science, Technology, and Maritime Transport Presented at the International Conference on Industrial Engineering and Operations Management • Paris, France, July 2018 ![]() ![]() |
![]() 2019 May |
Simulation Analysis of Segmented CONWIP: Application to Reentrant Flow Lines Yassin Shaalan, Ingy El-Khouly, and Khaled El-Kilan • Dept of Industrial and Management Engineering • Arab Academy for Science, Technology, and Maritime Transport Presented at the International Conference on Industrial Engineering and Operations Management • March 2018 ![]() ![]() |
![]() 2019 April |
Simulation Modeling for Reliable Biomass Supply Chain Design Under Operational Disruptions Bhavna Sharma1, Robin Clark, Michael R. Hilliard, and Erin G. Webb Frontiers in Energy Research • Bioenergy & Biofuels 25 September 2018 Lignocellulosic biomass derived fuels and chemicals are a promising and sustainable supplement for petroleum-based products. Currently, the lignocellulosic biofuel industry relies on a conventional system where feedstock is harvested, baled, stored locally, and then delivered in a low-density format to the biorefinery. However, the conventional supply chain system causes operational disruptions at the biorefinery mainly due to seasonal availability, handling problems, and quality variability in biomass feedstock. Operational disruptions decrease facility uptime, production efficiencies, and increase maintenance costs. For a low-value high-volume product where margins are very tight, system disruptions are especially problematic. In this work we evaluate an advanced system strategy in which a network of biomass processing centers (depots) are utilized for storing and preprocessing biomass into stable, dense, and uniform material to reduce feedstock supply disruptions, and facility downtime in order to boost economic returns to the bioenergy industry. A database centric discrete event supply chain simulation model was developed, and the impact of operational disruptions on supply chain cost, inventory and production levels, farm metrics and facility metrics were evaluated. Three scenarios were evaluated for a 7-year time-period: (1) bale-delivery scenario with biorefinery uptime varying from 20 to 85%; (2) pellet-delivery scenario with depot uptime varying from 20 to 85% and biorefinery uptime at 85%; and (3) pellet-delivery scenario with depot and biorefinery uptime at 85%. In scenarios 1 and 2, tonnage discarded at the field edge could be reduced by increasing uptime at facility, contracting fewer farms at the beginning and subsequently increasing contracts as facility uptime increases, or determining alternative corn stover markets. Harvest cost was the biggest contributor to the average delivered costs and inventory levels were dependent on facility uptimes. We found a cascading effect of failure propagating through the system from depot to biorefinery. Therefore, mitigating risk at a facility level is not enough and conducting a system-level reliability simulation incorporating failure dependencies among subsystems is critical. ![]() |
![]() 2018 December |
Sustainable Dynamic Pricing for Perishable Food with Stochastic Demand Ghada Yehia Mostafa, N.M. Galal, K.S. El-Kilany IEEM 2018 -- International Conference on Industrial Engineering and Engineering Management Masters in Industrial Engineering • Arab Academy for Science, Technology, and Maritime Transport ![]() ![]() |
![]() 2018 September |
Overcoming Challenges in Hybrid Simulation Design and Experiment Jacek Zabawa and Bozena Mielczarek, Faculty of Computer Science and Management, Wroclaw University of Science and Technology ISAT 2018 -- 39th International Conference ![]() |
![]() 2018 April |
Ocean Certain Ocean Certain was a collaborative EU-project from 2013-2017 consisting of 11 partners from 8 European countries plus Chile and Australia. The project was initiated in Norway by NTNU (the project coordinator) and the University of Bergen. ![]() OCEAN-CERTAIN was an ambitious collaborative project with natural scientists, working with the ecosystem and the biological pump, and social scientists studying possible consequences for society who worked to create more certainty about the contributions of our oceans during climate change. Climate change poses serious risks for both natural systems and human beings, and plausible and feasible policy decisions and strategies to mitigate these risks are urgently needed. However, there are important knowledge gaps surrounding the large-scale natural processes and interactions with social-economic processes that play an important role for our oceans. The multi-disciplinary project OCEAN-CERTAIN (Ocean Food-web Patrol – Climate Effects: Reducing Targeted Uncertainties with an Interactive Network) aimed to shed light on these processes. Using a combination of metamodel simulations, system dynamics with the custom-designed GUI functionalities of ExtendSim, Ocean Certain has created a a powerful tool for the evaluation and demonstration of policy alternatives under different climate and socio-economic conditions. This decision support system was designed to serve as knowledgebase and knowledge generator to examine the feedback mechanisms linking the ocean food web system to the social-economic system of the coastal zones. ![]() |
![]() 2018 March |
Polarimeter Richard Morrison University of Melbourne • School of Chemistry ![]() ![]() |
![]() 2018 February |
Replenishment Policy for Perishable and Substitutable Products at Suppliers and Retailers: A Multi-Criteria Approach Linh Nguyen Khanh Duong PhD in Supply Chain Management Auckland University of Technology • Faculty of Business and Law ![]() ![]() |
![]() 2017 December |
Application of a Multi-Level Simulation Model for Aggregate and Detailed Planning in Shipbuilding (El Astillero 4.0: Modelado y Simulación del Astillero de Navantia - Ferrol) Mar Cebral Fernández, Marcos Rouco-Couzo, Marta Quiroga Pazos - UMI Navantia, UDC; Rafael Morgade Abeal - Navantia Ferrol; Alejandro García del Valle & Diego Crespo-Pereira - Universidade da Coruña. Presented at the Winter Simulation Conference 2018 ![]() ![]() This case study uses ExtendSim to model the manufacturing process of a frigate from the shipyard of Navantia Ferr to minimize the uncertainties of its construction. ![]() |
![]() 2017 November |
Carollo’s Blue Plan-it® Team Wins 2017 Software and Technology Innovation Award Chao-an Chiu & Charlie He, Carollo Engineers, Inc. Corporate Vision Magazine's 2017 Software & Technology Innovation Award ![]() Carollo Engineers, Inc. Blue Plan-it® was selected from a shortlist of 200 firms for the 2017 Software Technology Innovation Award, given by Corporate Vision Magazine. This is an exceptional achievement, since that Carollo is really not a software company. Developed by Carollo to help municipal service providers manage complex, interconnected water and wastewater infrastructure, storage, treatment, conveyance, and distribution systems, Blue Plan-it is a fully customizable simulation and optimization model suite developed in ExtendSim. Blue Plan-it takes an agency’s vast quantity of data, including maintenance, geographic, regulatory, and financial information, and creates a customized graphical user interface that can be easily modified, understood, and presented. ![]() |
![]() 2017 October |
Using Simulation and Optimization in Complex Manufacturing Operations Jim Curry, Founder, OpStat Group Inc. & Alvaro Brisolla, Production Planning and Logistics Senior Manager, Ethicon (a Johnson & Johnson subsidiary) APICS Annual Conference 2017 ![]() ![]() |
![]() 2017 June |
Production Availability Analysis: Implications on Modelling due to Subsea Conditions![]() Masters Thesis in Reliability, Availability, Maintainability and Safety (RAMS) Norwegian University of Science and Technology Department of Mechanical and Industrial Engineering Subsea production and processing systems have become a hot topic among research institutes and industries. While highlighting the advantages on production and economy, the reliability issues show a different picture with limited access, difficulty of maintenance and possibly lower availability. The influence of these issues on the system performance is studied in this paper to evaluate the benefit of subsea systems. ![]() |
![]() 2017 February |
Evaluating the Impact of Pharmacies on Pandemic Influenza Vaccine Administration Schwerzmann J, Graitcer SB, Jester B, Krahl D, Jernigan D, Bridges CB, Miller J Is it really beneficial for pharmacists to administer pandemic influenza vaccines? Absolutely! Using ExtendSim, researchers showed that weekly national vaccine administration capacity increased to 25 million doses per week when pharmacist vaccinators are integrated into pandemic vaccine response planning. In addition, the time to achieve 80% vaccination coverage nationally was reduced by 7 weeks, assuming high public demand for vaccination. ![]() |
![]() |