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Displaying 26 - 50 of 603

Verifying Executability of SysML Behavior Models Using Alloy Analyzer

February 24, 2022
Author(s)
Jeremy Doerr, Conrad Bock, Raphael Barbau
This report presents an approach to verifying executability of system behavior models by treating them as logical constraint problems solved using Alloy Analyzer, a non-proprietary software tool supporting a textual language for logical constraints and

Quantitative Determination of Cell Viability Using Absorbance Microscopy

January 19, 2022
Author(s)
Greta Babakhanova, Stephen Zimmerman, Laura Pierce, Sumona Sarkar, Nicholas Schaub, Carl Simon Jr.
Cell viability is an essential measurement for cell therapy products. One of the most common tests is Trypan blue (TB) dye exclusion where blue-stained cells are counted via imaging. Typically, live and dead cells are counted based on pixel intensities of

Quantifying Machining Process Inventories In Detailed Design

August 24, 2021
Author(s)
William Z. Bernstein, Till Boettjer, Deverajan Ramanujan
This paper quantifies machining process inventories based on commonly used techniques in various stages of the detailed design process. We investigate variabilities in process inventories between these techniques and their relation to manufacturing process

Advances in Production Management Systems: Issues, Trends, and Vision Towards 2030

August 13, 2021
Author(s)
Boonserm Kulvatunyou, David Romero, Gregor V. Cieminski, Paolo Gaiardelli, Ilkyeong Moon, Giuditta Pezzotta, Stefan Wiesner, Marco Macchi, Jannicke B. Hauge, Irene Roda, Daryl Powell, Torbj?rn Netland, Nick Szirbik, Christoph Roser, Erlend Alfnes, Martin Rudberg
Since its inception in 1978, the IFIP Working Group 5.7 on Advances in Production Management Systems (APMS) has played an active role in the conception, development, and application of innovative strategies, frameworks, architectures, processes, methods

Contextualized Filtering for Shared Cyber Threat Information

July 18, 2021
Author(s)
Athanasios Dimitriadis, Christos Prassas, Jose L. Flores, Boonserm Kulvatunyou, Nenad Ivezic, Dimitris Gritzalis, Ioannis Mavridis
Cyber threat information sharing is an imperative process towards achieving collaborative security, but it poses several challenges. One crucial challenge is the plethora of shared threat information. Therefore, there is a need to advance filtering of such

Scalability of precision design principles for machines and instruments

July 16, 2021
Author(s)
Jose Yague-Fabra, Wei Gao, Andreas Archenti, Ed Morse, Alkan Donmez
The implementation of precision engineering principles in the design of precision systems is fundamental to achieve high accuracy. Although these principles may be independent of the system working range, their implementation is not. The working range, the

Model of Operational Control of Discrete Event Logistics Systems (DELS)

July 8, 2021
Author(s)
Timothy A. Sprock, Conrad Bock
Operations management systems manage flows of work, resources, and information through production and logistics systems, ensuring the correct and efficient execution of requested work. These systems can leverage recent advances in data availability

Realizing Environmentally-Conscious Manufacturing in the Post-COVID-19 Era

December 16, 2020
Author(s)
Nancy Diaz-Elsayed, Julius Schoop, KC Morris
The unique and unprecedented challenges of the COVID-19 pandemic have resulted in significant disruptions to diverse manufacturing supply chains across the globe. The negative economic impacts of these unexpected and rapid changes in demand and available

DIGITAL TWIN FOR SMART MANUFACTURING: THE PRACTITIONER'S PERSPECTIVE

November 18, 2020
Author(s)
Maja Barring, Guodong Shao, Bjorn Johansson
The manufacturing sector is experiencing a technological paradigm shift, where new digital technologies can help digitalize product design, production systems, and manufacturing processes and generate more data. One of the essential technology concepts for

Uncertainties for Machine Tool Modeling

September 30, 2020
Author(s)
Guodong Shao, William Stann
Machine tool models play an important role to support decision-making for machine tool procurement, process planning, and production scheduling in manufacturing. However, it is challenging to have a machine model that is accurately and dynamically

ARES: Automated Risk Estimation in Smart Sensor Environments

August 17, 2020
Author(s)
Athanasios Dimitriadis, Jose L. Flores, Boonserm Kulvatunyou, Nenad Ivezic, Ioannis Mavridis
Industry 4.0 adoption demands integrability, interoperability, composability, and security. Currently, integrability, interoperability and composability are addressed by next-generation approaches for enterprise systems integration such as model-based

SysML Models for Discrete Event Logistics Systems

July 29, 2020
Author(s)
Timothy A. Sprock, Conrad E. Bock
System models and model-based engineering methods have the promise of transforming the way that industrial engineers interact with production and logistics systems. Model-based methods play a role in improving communication between stakeholders

Theory of Discrete Event Logistics Systems (DELS) Specification

June 12, 2020
Author(s)
Timothy A. Sprock, George Thiers, Leon F. McGinnis, Conrad E. Bock
System models and model-based engineering methods have the promise of transforming the way that industrial engineers interact with production and logistics systems. Model-based methods play a role in improving communication between stakeholders

A Decision Support Methodology for Integrated Machining Process and Operation Plans for Sustainability and Productivity Assessment

April 12, 2020
Author(s)
Qais Hatim, Christopher Saldana, Guodong Shao, Duckbong Kim, KC Morris, Paul Witherell, Sudarsan Rachuri, Soundar Kumara
In this paper, a systematic methodology is presented to enable environmental sustainability and productivity performance assessment for integrated process and operation plans at the machine cell level of a manufacturing system. This approach determines

Improving 3D Vision-Robot Registration for Assembly Tasks

April 3, 2020
Author(s)
Marek Franaszek, Geraldine S. Cheok, Karl Van Wyk, Jeremy A. Marvel
Quality registration between the coordinate frames of a perception system and a robot is important for the efficient operation of autonomous systems in vision-guided assembly lines. Rigid-body registration, which is based on the measurement of

Defining Near-term to Long-term Research Opportunities to Advance Metrics, Models, and Methods for Smart and Sustainable Manufacturing

February 21, 2020
Author(s)
Arvind Shankar Raman, Karl Haapala, Kamyar Raoufi, Barbara S. Linke, William Z. Bernstein, KC Morris
Over the past century, research has focused on continuously improving the performance of manufacturing processes and systems - often measured in terms of cost, quality, productivity, and material and energy efficiency. With the advent of smart
Displaying 26 - 50 of 603
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