Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 86

Full-Text Articles in Physical Sciences and Mathematics

Review Of The Energy And Social Impact Of Bitcoin Mining And Transactions And Its Potential Use As A Productive Use Of Energy (Pue) To Aid Equitable Investment In Solar Micro And Mini Grids Worldwide, Kevin Hallinan, Lu Hao, Rydge Mulford, Lauren Bower, Kaitlin Russell, Austin Mitchell, Alan Schroeder, Rustam Kuzhin, Mohammad Ehsan Naikkhua, Rohulla Arya, Sayed Ehsani, Rishabh Shukla Nov 2022

Review Of The Energy And Social Impact Of Bitcoin Mining And Transactions And Its Potential Use As A Productive Use Of Energy (Pue) To Aid Equitable Investment In Solar Micro And Mini Grids Worldwide, Kevin Hallinan, Lu Hao, Rydge Mulford, Lauren Bower, Kaitlin Russell, Austin Mitchell, Alan Schroeder, Rustam Kuzhin, Mohammad Ehsan Naikkhua, Rohulla Arya, Sayed Ehsani, Rishabh Shukla

Mechanical and Aerospace Engineering Working Papers

Despite the climate commitments made by countries in the Paris Climate Agreement adopted in 2015, and reinforced during COP 21, world carbon emissions have increased in both 2021 and 2022. It is increasingly unlikely that the world can achieve the targeted 50% carbon reduction by 2030; the reduction approximately needed for reducing global temperature rise since the beginning of the industrial revolution to less than 1.5 deg. C. At the same time, the carbon intensive loads associated with bitcoin mining have grown, thereby contributing to growing worldwide carbon emissions. In this context, the role of cryptocurrency and particularly bitcoin is …


Plastic Fast, Maureen E. Schlangen Dec 2019

Plastic Fast, Maureen E. Schlangen

Roesch Library Staff Publications

In the era of Silent Spring, the first Earth Days and the “Keep America Beautiful” campaigns in the 1970s, littering was just the tip of the pollution iceberg. It still is. The bigger problems are demand and production. A June 2018 article in National Geographic found that worldwide, we produce almost 500 million tons of plastic every year — and about 40 percent is tossed after one use. According to the nonprofit Plastic Oceans, more than 8 million tons of plastic go into the oceans each year; production of plastic water bottles alone has grown from 3.8 billion in 1996 …


The Role Of Environmental Filtering In Structuring Appalachian Tree Communities: Topographic Influences On Functional Diversity Are Mediated Through Soil Characteristics, Julia I. Chapman, Ryan W. Mcewan Jan 2018

The Role Of Environmental Filtering In Structuring Appalachian Tree Communities: Topographic Influences On Functional Diversity Are Mediated Through Soil Characteristics, Julia I. Chapman, Ryan W. Mcewan

Biology Faculty Publications

Identifying the drivers of community assembly has long been a central goal in ecology, and the development of functional diversity indices has provided a new way of detecting the influence of environmental gradients on biotic communities. For an old-growth Appalachian forest, we used path analysis to understand how patterns of tree functional diversity relate to topography and soil gradients and to determine whether topographic effects are mediated through soil chemistry. All of our path models supported the idea of environmental filtering: stressful areas (high elevation, low soil moisture, low soil nutrients) were occupied by communities of low functional diversity, which …


Compiled Research & Materials, Appendix F: Valuable Solar Resources, Andrew Tarutani, Laura Kunas, Conor Mcgrail, Colin Joern, Madalyn Beban May 2017

Compiled Research & Materials, Appendix F: Valuable Solar Resources, Andrew Tarutani, Laura Kunas, Conor Mcgrail, Colin Joern, Madalyn Beban

Sustainability and Energy

This document lists several URLs that may offer valuable information as it pertains to solar energy and solar initiatives across the U.S.


Compiled Research & Materials, Appendix H: Tiny Homes Ideas, Andrew Tarutani, Laura Kunas, Madalyn Beban, Conor Mcgrail, Colin Joern May 2017

Compiled Research & Materials, Appendix H: Tiny Homes Ideas, Andrew Tarutani, Laura Kunas, Madalyn Beban, Conor Mcgrail, Colin Joern

Sustainability and Energy

This document explains some of the ideas developed by the team that relate to the implementation of a tiny homes neighborhood.


Compiled Research & Materials, Appendix I: Tiny Homes Survey, Andrew Tarutani May 2017

Compiled Research & Materials, Appendix I: Tiny Homes Survey, Andrew Tarutani

Sustainability and Energy

This document represents a survey that could be used to gauge student interest for a tiny homes neighborhood.


Compiled Research & Materials, Appendix G: Tiny Homes Consideration, Andrew Tarutani, Laura Kunas, Conor Mcgrail, Colin Joern, Madalyn Beban May 2017

Compiled Research & Materials, Appendix G: Tiny Homes Consideration, Andrew Tarutani, Laura Kunas, Conor Mcgrail, Colin Joern, Madalyn Beban

Sustainability and Energy

This document reviews several considerations identified by the team that relate to the concept of a tiny homes neighborhood.


Compiled Research & Materials, Appendix L: Solar America Initiative, S. Grover May 2017

Compiled Research & Materials, Appendix L: Solar America Initiative, S. Grover

Sustainability and Energy

This National Renewable Energy Laboratory resource details the benefits of the Solar America Initiative.


Compiled Research & Materials, Appendix K: Economic Impact Potential Of Solar Photovoltaics In Illinois, Illinois State University. Center For Renewable Energy May 2017

Compiled Research & Materials, Appendix K: Economic Impact Potential Of Solar Photovoltaics In Illinois, Illinois State University. Center For Renewable Energy

Sustainability and Energy

This 2013 study reviews the potential for economic impact of solar photovoltaics in the state of Illinois.


Compiled Research & Materials, Appendix Q: Energysage Interview, Andrew Tarutani, Conor Mcgrail, Colin Joern, Madalyn Beban, Laura Kunas May 2017

Compiled Research & Materials, Appendix Q: Energysage Interview, Andrew Tarutani, Conor Mcgrail, Colin Joern, Madalyn Beban, Laura Kunas

Sustainability and Energy

This document reviews several of the topics discussed in an informational interview with a representative with EnergySage.


Compiled Research & Materials, Appendix N: Keybank Interview, Andrew Tarutani, Laura Kunas, Madalyn Beban, Colin Joern, Conor Mcgrail May 2017

Compiled Research & Materials, Appendix N: Keybank Interview, Andrew Tarutani, Laura Kunas, Madalyn Beban, Colin Joern, Conor Mcgrail

Sustainability and Energy

This document reviews several of the topics discussed in an informational interview with KeyBank regarding financing options for solar projects.


Compiled Research & Materials, Appendix O: Energywize Interview, Andrew Tarutani, Madalyn Beban, Laura Kunas, Colin Joern, Conor Mcgrail May 2017

Compiled Research & Materials, Appendix O: Energywize Interview, Andrew Tarutani, Madalyn Beban, Laura Kunas, Colin Joern, Conor Mcgrail

Sustainability and Energy

This document reviews several of the topics discussed in an informational interview with Wendell Ott of EnergyWize.


Compiled Research & Materials, Appendix P: Current Solar Pricing, Andrew Tarutani, Laura Kunas, Madalyn Beban, Colin Joern, Conor Mcgrail May 2017

Compiled Research & Materials, Appendix P: Current Solar Pricing, Andrew Tarutani, Laura Kunas, Madalyn Beban, Colin Joern, Conor Mcgrail

Sustainability and Energy

This document reviews the current state of solar costs as defined in an informational interview with Wendell Ott of EnergyWize.


Compiled Research & Materials, Andrew Tarutani, Madalyn Beban, Laura Kunas, Colin Joern, Conor Mcgrail May 2017

Compiled Research & Materials, Andrew Tarutani, Madalyn Beban, Laura Kunas, Colin Joern, Conor Mcgrail

Sustainability and Energy

This document outlines the research conducted and progress made over the Spring 2017 semester. It details the team's efforts to pursue implementation of a solar co-op in the McPherson Town neighborhood along with an innovative tiny homes neighborhood on the University of Dayton's campus.


Compiled Research & Materials, Appendix M: Mcpherson Town Interview, Andrew Tarutani, Laura Kunas, Madalyn Beban, Conor Mcgrail, Colin Joern May 2017

Compiled Research & Materials, Appendix M: Mcpherson Town Interview, Andrew Tarutani, Laura Kunas, Madalyn Beban, Conor Mcgrail, Colin Joern

Sustainability and Energy

This document reviews several of the topics discussed in an informational interview with McPherson Town neighborhood president Phil Leppla.


Compiled Research & Materials, Appendix J: Solar For Economic Development Toolkit, National Association Of Regional Councils May 2017

Compiled Research & Materials, Appendix J: Solar For Economic Development Toolkit, National Association Of Regional Councils

Sustainability and Energy

This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the …


Presentation: Mentoring (Stander Symposium 2017), Adam Foster, Timothy Leonard, Patrick Gray, Abigail Lisjak Apr 2017

Presentation: Mentoring (Stander Symposium 2017), Adam Foster, Timothy Leonard, Patrick Gray, Abigail Lisjak

Sustainability and Connectivity

Presentation given at the University of Dayton's 2017 Stander Symposium. It proposes the Gem City Mentors program to ensure that all young people in Dayton have mentors to support their educational and personal development and help them overcome challenges.


Next Steps For Mentoring Program, Patrick Gray Apr 2017

Next Steps For Mentoring Program, Patrick Gray

Sustainability and Connectivity

This file provides a jump-off position for students in the fall 2017 semester who want to continue work toward a mentoring program.


Sustainability Survey, Dayton Regional Green Nonmember Businesses, 2017, Zachary Siefker, Theresa Isemann, Andrew Eckrich Apr 2017

Sustainability Survey, Dayton Regional Green Nonmember Businesses, 2017, Zachary Siefker, Theresa Isemann, Andrew Eckrich

Sustainability and Connectivity

This document is a sustainability and sharing survey intended for businesses that are not already Dayton Regional Green members. This survey includes questions similar to what is in DRG3's survey. It asks questions regarding mentoring, sharing, local sourcing, energy, waste streams, and sustainability.


Hackathon 2017 Project: Resource-Sharing Website, Zachary Siefker, Theresa Isemann, Andrew Eckrich Apr 2017

Hackathon 2017 Project: Resource-Sharing Website, Zachary Siefker, Theresa Isemann, Andrew Eckrich

Sustainability and Connectivity

Our team was given the opportunity to pitch a concept to students attending UD’s Hackathon event on Febraury 22, 2017. One group took on the project and created the framework for a website that could be used for business connectivity and sharing. This document spells out the major takeaways from the project.


Team Meeting Minutes, January-April 2017, Zachary Siefker, Theresa Isemann, Andrew Eckrich Apr 2017

Team Meeting Minutes, January-April 2017, Zachary Siefker, Theresa Isemann, Andrew Eckrich

Sustainability and Connectivity

This document provides notes from meetings with several Dayton-area community leaders. Several ideas that make Dayton more community-oriented and material-efficient are discussed.


Dayton's Best 2017 Project: Moving Forward, Zachary Siefker, Theresa Isemann, Andrew Eckrich Apr 2017

Dayton's Best 2017 Project: Moving Forward, Zachary Siefker, Theresa Isemann, Andrew Eckrich

Sustainability and Connectivity

This is a summary of work for the Sustainability and Connectivity group in Dr. Kevin Hallinan's 2017 Local Sustainability with Abundance course. It describes our research process over the course of the semester and some final conclusions. Additionally, it discusses how we see the project continuing beyond our work.


Mentoring Brochure: Longer Version, Tim Leonard, Abigail Lisjak, Adam Foster Apr 2017

Mentoring Brochure: Longer Version, Tim Leonard, Abigail Lisjak, Adam Foster

Sustainability and Connectivity

This is a mentoring brochure we created to show different organizations our ideas. This is the longer of two versions.


Dayton's Best Conceptual Design Presentation, 2017, Andrew Eckrich, Zachary Siefker, Theresa Isemann Apr 2017

Dayton's Best Conceptual Design Presentation, 2017, Andrew Eckrich, Zachary Siefker, Theresa Isemann

Sustainability and Connectivity

This conceptual design presentation was given mid-semester during Spring 2017. It contains descriptions of the project team's short- and long-term goals, early strategies, results from the UD Hack-a-thon, and next steps for the project.


Mentoring Brochure: Shorter Version, Tim Leonard, Abigail Lisjak, Adam Foster Apr 2017

Mentoring Brochure: Shorter Version, Tim Leonard, Abigail Lisjak, Adam Foster

Sustainability and Connectivity

We made these brochures to talk to different organizations about our thoughts and ideas. There are two iterations of this. This one has less words.


Sustainability Survey, Dayton Regional Green Member Businesses, 2017, Zachary Siefker, Theresa Isemann, Andrew Eckrich Apr 2017

Sustainability Survey, Dayton Regional Green Member Businesses, 2017, Zachary Siefker, Theresa Isemann, Andrew Eckrich

Sustainability and Connectivity

This document is a sustainability and sharing survey intended for businesses that are Dayton Regional Green members. Dayton Regional Green already has an extensive survey. This survey tries to avoid redundancy in surveys by asking other questions not included in DRG3's survey. It asks questions regarding mentoring, sharing, local sourcing, and sustainability.


Contacts, Timothy Leonard, Abby Lisjak, Adam Foster Apr 2017

Contacts, Timothy Leonard, Abby Lisjak, Adam Foster

Sustainability and Connectivity

This a contact sheet of every group that the mentoring group has reached out to. There are no emails or phone numbers provided. If you would like those, please contact Kevin Hallinan.


Dayton Regional Green Meeting Notes, Tim Leonard, Adam Foster, Abigail Lisjak Apr 2017

Dayton Regional Green Meeting Notes, Tim Leonard, Adam Foster, Abigail Lisjak

Sustainability and Connectivity

These are notes from our meeting with Lamees Mubaslat from Dayton Regional Green. She is really excited about more mentoring programs in Dayton.


Presentation: Dayton's Best (Stander Symposium, 2017), Andrew Eckrich, Theresa Isemann, Zachary Siefker Apr 2017

Presentation: Dayton's Best (Stander Symposium, 2017), Andrew Eckrich, Theresa Isemann, Zachary Siefker

Sustainability and Connectivity

This is the "Dayton's BEST" (Businesses Engaging Sustainability Together) presentation given at Stander Symposium 2017. It provides the mission, vision, and scope of the resource management project.


Impact Of Icebergs On Net Primary Productivity In The Southern Ocean, Shuang-Ye Wu, Shugui Hou Mar 2017

Impact Of Icebergs On Net Primary Productivity In The Southern Ocean, Shuang-Ye Wu, Shugui Hou

Geology Faculty Publications

Productivity in the Southern Ocean (SO) is iron-limited, and supply of iron dissolved from aeolian dust is believed to be the main source from outside the marine environment. However, recent studies show that icebergs could provide a comparable amount of bioavailable iron to the SO as aeolian dust. In addition, small-scale areal studies suggest increased concentrations of chlorophyll, krill, and seabirds surrounding icebergs. Based on previous research, this study aims to examine whether iceberg occurrence has a significant impact on marine productivity at the scale of the SO, using remote sensing data of iceberg occurrences and ocean net primary productivity …