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Full-Text Articles in Engineering

Open Source Multi-Head 3d Printer For Polymer-Metal Composite Component Manufacturing, J. Laureto, Joshua M. Pearce Mar 2018

Open Source Multi-Head 3d Printer For Polymer-Metal Composite Component Manufacturing, J. Laureto, Joshua M. Pearce

Joshua M. Pearce

As low-cost desktop 3D printing is now dominated by free and open source self-replicating rapid prototype (RepRap) derivatives, there is an intense interest in extending the scope of potential applications to manufacturing. This study describes a manufacturing technology that enables a constrained set of polymer-metal composite components. This paper provides (1) free and open source hardware and (2) software for printing systems that achieves metal wire embedment into a polymer matrix 3D-printed part via a novel weaving and wrapping method using (3) OpenSCAD and parametric coding for customized g-code commands. Composite parts are evaluated from the technical viability of manufacturing …


Access Update For Gvsu, Matt Schultz, Kyle Felker Oct 2017

Access Update For Gvsu, Matt Schultz, Kyle Felker

Matt Schultz

By Fall 2016, GVSU Libraries began making a major strategic and technology shift toward the use of open source technologies versus commercial vendor solutions for digital preservation and access. In this presentation to the Mid-Michigan Digital Practitioners (MMDP) community, Matt Schultz (Metadata & Digital Curation Librarian) and Kyle Felker (Digital Initiatives Librarian) provide updates on these new directions.


Grnsight: A Web Application And Service For Visualizing Models Of Small- To Medium-Scale Gene Regulatory Networks, Kam D. Dahlquist, John David N. Dionisio, Ben G. Fitzpatrick, Nicole A. Anguiano, Anindita Varshneya, Britain J. Southwick, Mihir Samdarshi Aug 2017

Grnsight: A Web Application And Service For Visualizing Models Of Small- To Medium-Scale Gene Regulatory Networks, Kam D. Dahlquist, John David N. Dionisio, Ben G. Fitzpatrick, Nicole A. Anguiano, Anindita Varshneya, Britain J. Southwick, Mihir Samdarshi

Ben G. Fitzpatrick

GRNsight is a web application and service for visualizing models of gene regulatory networks (GRNs). A gene regulatory network (GRN) consists of genes, transcription factors, and the regulatory connections between them which govern the level of expression of mRNA and protein from genes. The original motivation came from our efforts to perform parameter estimation and forward simulation of the dynamics of a differential equations model of a small GRN with 21 nodes and 31 edges. We wanted a quick and easy way to visualize the weight parameters from the model which represent the direction and magnitude of the influence of …


Emerging Business Models For Open Source Hardware, Joshua M. Pearce May 2017

Emerging Business Models For Open Source Hardware, Joshua M. Pearce

Joshua M. Pearce

The rise of Free and Open Source models for software development has catalyzed the growth of Free and Open Source hardware (also known as “Libre Hardware”). Libre Hardware is gaining significant traction in the scientific hardware community, where there is evidence that open development creates both technically superior and far less expensive scientific equipment than proprietary models. In this article, the evidence is reviewed and a collection of examples of business models is developed to service scientists who have the option to manufacture their own equipment using Open Source designs. Profitable Libre Hardware business models are reviewed, which includes kit, …


Grnsight: A Web Application And Service For Visualizing Models Of Small- To Medium-Scale Gene Regulatory Networks, Kam D. Dahlquist, John David N. Dionisio, Ben G. Fitzpatrick, Nicole A. Anguiano, Anindita Varshneya, Britain J. Southwick, Mihir Samdarshi Dec 2016

Grnsight: A Web Application And Service For Visualizing Models Of Small- To Medium-Scale Gene Regulatory Networks, Kam D. Dahlquist, John David N. Dionisio, Ben G. Fitzpatrick, Nicole A. Anguiano, Anindita Varshneya, Britain J. Southwick, Mihir Samdarshi

John David N. Dionisio

GRNsight is a web application and service for visualizing models of gene regulatory networks (GRNs). A gene regulatory network (GRN) consists of genes, transcription factors, and the regulatory connections between them which govern the level of expression of mRNA and protein from genes. The original motivation came from our efforts to perform parameter estimation and forward simulation of the dynamics of a differential equations model of a small GRN with 21 nodes and 31 edges. We wanted a quick and easy way to visualize the weight parameters from the model which represent the direction and magnitude of the influence of …


Moving The Digital Curation Needle @Gvsu, Matt Schultz, Kyle Felker Nov 2016

Moving The Digital Curation Needle @Gvsu, Matt Schultz, Kyle Felker

Matt Schultz

Grand Valley State University (GVSU) is a dynamically growing public liberal arts university located in Allendale, Michigan, United States. In 2012, GVSU Libraries became the recipient of the ACRL Excellence in Academic Libraries Award. The Libraries prides itself on innovation and taking risks to better serve its faculty and students and to improve its collections.

In step with that mission, beginning in early 2016 the Libraries began making strides to move beyond outsourcing its digital curation and to strengthen capacity and expertise for managing its own open source digital collections technologies.

This immediately involved making dramatic changes to a range …


3-D Printing Of Open Source Appropriate Technologies For Self-Directed Sustainable Development, Joshua M. Pearce, Christine Morris Blair, Kristen J. Laciak, Rob Andrews, Amir Nosrat, Ivana Zelenika-Zovko Nov 2010

3-D Printing Of Open Source Appropriate Technologies For Self-Directed Sustainable Development, Joshua M. Pearce, Christine Morris Blair, Kristen J. Laciak, Rob Andrews, Amir Nosrat, Ivana Zelenika-Zovko

Joshua M. Pearce

The technological evolution of the 3-D printer, widespread internet access and inexpensive computing has made a new means of open design capable of accelerating self-directed sustainable development. This study critically examines how open source 3-D printers, such as the RepRap and Fab@home, enable the use of designs in the public domain to fabricate open source appropriate technology (OSAT), which are easily and economically made from readily available resources by local communities to meet their needs. The current capabilities of open source 3-D printers is reviewed and a new classification scheme is proposed for OSATs that are technically feasible and economically …


Using Flossmole Data In Determining Business Readiness Ratings, Tony Wasserman, Ashutosh Das Dec 2006

Using Flossmole Data In Determining Business Readiness Ratings, Tony Wasserman, Ashutosh Das

Tony Wasserman

This paper is a preliminary report on using FLOSSmole data retrieved from open source repositories (forges) to calculate Business Readiness Rating scores.