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Articles 1 - 23 of 23
Full-Text Articles in Engineering
Low-Cost Scheffler Solar Concentrator For The Developing World, Darren Sholes, Jason Morgan, Nicholas Fuller
Low-Cost Scheffler Solar Concentrator For The Developing World, Darren Sholes, Jason Morgan, Nicholas Fuller
Mechanical Engineering
This report will outline an approach to design, test, and build a low-cost Scheffler solar concentrator to be used for safer, sustainable and cost effective cooking in the developing world. The function of Scheffler concentrators and a proposed method to create one in an economic, environmentally conscious manner is summarized. If successful, the design will be presented in a way that is readily and freely available to anyone in the world. The authors have examined existing technology and researched the availability and cost of different materials. Analysis was performed in order to verify the feasibility of the different design ideas …
Improvements In The Process Of Biohydrogen Production By Thermotoga Neapolitana, Louis Hill
Improvements In The Process Of Biohydrogen Production By Thermotoga Neapolitana, Louis Hill
All Theses
The production of biological hydrogen is an important process for the future of sustainability and alternative energies. Thermotoga neapolitana is a hyperthermophilic bacterium that produces H 2 , CO2 and acetate via fermentation. The goal of the research was to investigate the sustainable production of H2 gas using waste agricultural feedstocks, recycled water and a simplified N2 sparging method technique. A limited sparging method was developed which includes 1 minute of N2 gas sparging of the reactor headspace and 90 minutes of idle reaction time for cysteine-HCl to react with dissolved oxygen prior to inoculation. This …
Phytotechnologies - Preventing Exposures, Improving Public Health, Heather F. Henry, Joel Gerard Burken, Raina M. Maier, Lee A. Newman, Steven Rock, Jerald L. Schnoor, William A. Suk
Phytotechnologies - Preventing Exposures, Improving Public Health, Heather F. Henry, Joel Gerard Burken, Raina M. Maier, Lee A. Newman, Steven Rock, Jerald L. Schnoor, William A. Suk
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Phytotechnologies Have Potential to Reduce the Amount or Toxicity of Deleterious Chemicals and Agents, and Thereby, Can Reduce Human Exposures to Hazardous Substances. as Such, Phytotechnologies Are Tools for Primary Prevention in Public Health. Recent Research Demonstrates Phytotechnologies Can Be Uniquely Tailored for Effective Exposure Prevention in a Variety of Applications. in Addition to Exposure Prevention, Plants Can Be Used as Sensors to Identify Environmental Contamination and Potential Exposures. in This Paper, We Have Presented Applications and Research Developments in a Framework to Illustrate How Phytotechnologies Can Meet Basic Public Health Needs for Access to Clean Water, Air, and Food. …
The Sustainability Of Lean Manufacturing As A Competitive Advantage, Louis G. Jones
The Sustainability Of Lean Manufacturing As A Competitive Advantage, Louis G. Jones
Theses and Dissertations
Since the early 1990s lean manufacturing has been employed by companies looking to reduce costs, increase efficiencies and improve quality. Academic studies of the financial benefits of lean manufacturing are mixed in their results, where some show benefit and others do not. The objective of the current work was to confirm a financial benefit of lean manufacturing, while also establishing whether such a financial advantage was sustainable. Financial data was collected for a large number of companies in the manufacturing sector, over the period from 1990 to 2010. The data were used to show correlation between inventory turns and return …
Applying Sustainability From A Systems Perspective:, Timothy Brophy
Applying Sustainability From A Systems Perspective:, Timothy Brophy
Master's Theses
Becoming sustainable is no longer an option. Current industry methods will not be able to support the necessary changes our growing society demands. In order to keep up with ever increasing demands industry will be aimed toward making major system changes toward a fully sustainable model. As of right now only basic sustainability actions have been put in place. Industry needs to make a strategic change toward resilient systems with an end goal of evolving into fully biomimic systems. This thesis covers a brief history of production leading to the Industrial Revolution which created a need for increased sustainability efforts. …
Swing Human Powered Generator: For The Dc House Project, Juan Vicente Avelar, Juan Jose Galindo, Juan Pramyr Ramos
Swing Human Powered Generator: For The Dc House Project, Juan Vicente Avelar, Juan Jose Galindo, Juan Pramyr Ramos
Electrical Engineering
The Play Park Human Powered Generator project addresses various ways of generating power. More specifically, this project entails the design and construction of the Swing Power Generator to provide electrical power from mechanical energy. The swing generator will eventually be used as part of the human-powered generators utilized in the DC House project.
A swing generator prototype was built for this project, which demonstrates the feasibility of its use for electrical power source. Detailed design and construction of the swing generator is presented in this report along with results from hardware testing.
Special Section Editorial: Risk, Complexity And Sustainability, Lindsay Robertson, Katina Michael
Special Section Editorial: Risk, Complexity And Sustainability, Lindsay Robertson, Katina Michael
Professor Katina Michael
This special section is dedicated to risk as understood within our society, in which we depend upon increasingly complex and interconnected technologies for even our most basic needs - water, food, shelter, electricity, gas, sewage, communications, and banking.
Natural disasters and their impact on vital services has been a research area that has flourished, especially since the 2004 Indian Ocean Tsunami that claimed hundreds of thousands of lives in South Asia. Out of this research has come forth a plethora of strategies for addressing short term and geographically defined disasters. While such disaster preparedness systems are vital to minimise the …
Analysis Of Water Footprint Of A Photobioreactor Microalgae Biofuel 1 Production System From Blue, Green And Lifecycle Perspectives, Jason C. Quinn
Analysis Of Water Footprint Of A Photobioreactor Microalgae Biofuel 1 Production System From Blue, Green And Lifecycle Perspectives, Jason C. Quinn
Mechanical and Aerospace Engineering Faculty Publications
Microalgae are currently being investigated as a feedstock for the commercial production of transportation fuels, due to their potential scalability and sustainability advantages over conventional feedstocks. The water consumption of microalgae has been postulated to be a resource barrier for large-scale production. This study presents an assessment of the water footprint (WF) of a closed photobioreactor-based biofuel production system, where microalgae cultivation is simulated with geographical and temporal resolution. The assessment focuses on the WF as modeled for four different fuel conversion pathways, and in 10 continental US locations corresponding to high productivity yields. The WF is comprehensively assessed using …
Sustainability In Industrial Logistics Operations, Vishnu Siddharth Somanur Paramasivam
Sustainability In Industrial Logistics Operations, Vishnu Siddharth Somanur Paramasivam
Purdue Polytechnic Directed Projects
CO2 concentration in the atmosphere has been rising at a rapid rate. As per the numbers quoted, the concentration has surpassed the safest upper limit suggested by the scientists. CO2 is a green-house gas and is partially responsible for global warming. With the current rate of emissions, it poses a threat to the planet's future and prosperity. Transportation contributes 30% of the overall CO2 emissions. Companies that use transportation are taking sustainability initiatives to reduce the emissions. This project documented some of the sustainability practices followed by the companies currently. It was found that the practices followed three general methods …
Integrating Emotional Attachment And Sustainability In Electronic Product Design, Alex Lobos, Callie W. Babbitt
Integrating Emotional Attachment And Sustainability In Electronic Product Design, Alex Lobos, Callie W. Babbitt
Articles
Current models for Information and Communication Technology (ICT) products encourage frequent product replacement with newer versions that offer only minor incremental improvements. This pattern, named planned obsolescence, diminishes user experience and shortens product lifespan. This paper presents the conceptual basis for a two-part integrated approach to combating planned obsolescence in ICT devices. First, design for emotional attachment, which creates products that users enjoy, value, and use for longer. Second, technological adaptability, which anticipates product upgrades and repairs as new technologies emerge. A model interdisciplinary design course in industrial design and sustainability, also described herein, trains students to apply this approach …
Sustainable Purchasing Practices: An Investigation Into Current Industry Awareness And Practice, Frank Palisi, Kathryne Newton, Edward Sweeney
Sustainable Purchasing Practices: An Investigation Into Current Industry Awareness And Practice, Frank Palisi, Kathryne Newton, Edward Sweeney
Conference papers
This research study illustrates the importance of sustainable purchasing practices for organizations in the U.S. distribution industry and answers several important questions: what is the current awareness of U.S. organizations regarding sustainable purchasing practices; to what extent are U.S. organizations evaluating, selecting, and retaining suppliers based upon sustainable purchasing practices; and to what extent are sustainable purchasing practices being implemented by the U.S. organizations under study? With an ever increasing global economy, is it critically important for organizations to put in place sustainability practices; the biggest impact organizations can make is often in an organization’s purchasing department. The researcher begins …
University Of Massachusetts Amherst 2012-2021 Capital Improvement Projects, Douglas Vigneau, Juanita Holler, University Of Massachusetts Building Authority, John Mathews, Ludmilla Pavlova-Gillham, Ezra Small
University Of Massachusetts Amherst 2012-2021 Capital Improvement Projects, Douglas Vigneau, Juanita Holler, University Of Massachusetts Building Authority, John Mathews, Ludmilla Pavlova-Gillham, Ezra Small
Campus Planning Master Plans
In 2013 the University of Massachusetts, on behalf of the University of Massachusetts Building Authority and Massachusetts Division of Capital Asset Management and Maintenance (DCAMM), submitted an Expanded Environmental Notification Form for the University's 2012 - 2021 Capital Improvement Plan to the Executive Office of Energy and Environmental Affairs (EOEEA) Massachusetts Environmental Policy Act Office (MEPA).
Taken individually, the majority of the Projects, comprising of 13 building/space, 7 site/landscape, and 5 facility/ utility scale improvement projects, do not require MEPA review as most of the Project sites are confined to infill areas on campus that are currently or …
Umass Amherst Green Building Guidelines 2013, Ludmilla Pavlova-Gillham, Ted Mendoza, Ezra Small, Patricia O'Flaherty, Nariman Mostafavi, Mohamed Farzinmoghadam, Somayeh Tabatabaee Pozveh
Umass Amherst Green Building Guidelines 2013, Ludmilla Pavlova-Gillham, Ted Mendoza, Ezra Small, Patricia O'Flaherty, Nariman Mostafavi, Mohamed Farzinmoghadam, Somayeh Tabatabaee Pozveh
Campus Planning Reports and Plans
Facilities & Campus Services, Sustainable UMass and Campus Planning support sustainability and energy conservation initiatives by providing in-house resources to campus staff as well as designers and contractors working with the University. The UMass Amherst Green Building Guidelines provide a framework for approaching new construction and major renovation projects at UMass Amherst that are undergoing LEED certification by focusing the conversation on green building aspects that are most important to the campus. They are intended to be the beginning of a dynamic conversation between designers, environmental consultants and constructors, university stakeholders, and users of new high performance buildings.
Sustainability Assessment Of Wind Energy For Buildings, Mehdi Noori
Sustainability Assessment Of Wind Energy For Buildings, Mehdi Noori
Electronic Theses and Dissertations
Due to increasing concerns for global climate change, onshore and offshore wind energy technologies have stimulated a tremendous interest worldwide, and are considered as a viable solution to mitigate the environmental impacts related to electricity generation. Although wind energy technologies have been considered as one of the cleanest energy sources, they have a wide range of direct and indirect environmental impacts when the whole supply chain is considered. This study aims to quantify the direct and indirect environmental impacts of onshore and offshore wind power technologies by tracing all of the economy-wide supply chain requirements. To accomplish this goal, we …
Photocatalytic Degradation Of Nox By Concrete Pavement Containing Tio₂, Joel K. Sikkema
Photocatalytic Degradation Of Nox By Concrete Pavement Containing Tio₂, Joel K. Sikkema
Faculty Work Comprehensive List
Emissions from motor vehicles cause the concentrations of nitrogen oxides (NOX) in the immediate vicinity of highways to be 30-100% higher than background concentrations. Photocatalytic pavements have been proposed to address this localized pollution problem. Bench-scale evaluation of environmental variables confirmed that nitric oxide (NO) oxidation rate positively correlated with influent NO concentration and irradiance and negatively correlated with relative humidity. However, comparison of the slope of these correlations found significant differences between this study and other published work. Slab water loss, a variable not investigated in prior work, positively correlated with NO oxidation rate at water losses of 0-2% …
Supplier Sustainability Evaluation Utilizing Multi Attribute Utility Modeling, Scott E. Ladd
Supplier Sustainability Evaluation Utilizing Multi Attribute Utility Modeling, Scott E. Ladd
Theses and Dissertations--Manufacturing Systems Engineering
Conventionally, the focus during supplier evaluation has been to assess cost, quality and delivery effectiveness due to their impact on profitability. In recent years, there has been increased emphasis on promoting more sustainable business practices that focus on reducing environmental impact and improve societal well-being, in addition to economic benefits. However, most of the existing supplier evaluation methods in literature as well as those used by leading companies fall short of comprehensively assessing suppliers from a Triple Bottom Line (TBL) perspective. TBL defined as holistically looking at the economic, environmental, and societal aspects of an entity. This paper presents a …
Multiscale Design And Life-Cycle Based Sustainability Assessment Of Polymer Nanocomposite Coatings, Rohan Ganesh Uttarwar
Multiscale Design And Life-Cycle Based Sustainability Assessment Of Polymer Nanocomposite Coatings, Rohan Ganesh Uttarwar
Wayne State University Dissertations
In recent years, nanocoatings with exceptionally improved and new performance properties have found numerous applications in the automotive, aerospace, ship-making, chemical, electronics, steel, construction, and many other industries. Especially the formulations providing multiple functionalities to cured paint films are believed to dominate the coatings market in the near future. It has shifted the focus of research towards building sustainable coating recipes which can deliver multiple functionalities through applied films. The challenge to this exciting area of research arrives from the insufficient knowledge about structure-property correlations of nanocoating materials and their design complexity. Experimental efforts have been successful in developing certain …
Data Protection By Design And Technology Neutral Law, Mireille Hildebrandt, Laura Tielemans
Data Protection By Design And Technology Neutral Law, Mireille Hildebrandt, Laura Tielemans
Mireille Hildebrandt
This article argues that to achieve a technology neutral law, technology specific law is sometimes required. To explain this we discriminate between three objectives, often implied in the literature on technological neutrality of law. The first we call the compensation objective, which refers to the need to have technology specific law in place whenever specific technological designs threated the substance of human rights. The second we call the innovation objective, referring to the need to prevent legal rules from privileging or discriminating specific technological designs in ways that would stifle innovation. The third we call the sustainability objective, which refers …
Simulating Land Use Land Cover Change Using Data Mining And Machine Learning Algorithms, Amin Tayyebi
Simulating Land Use Land Cover Change Using Data Mining And Machine Learning Algorithms, Amin Tayyebi
Open Access Dissertations
The objectives of this dissertation are to: (1) review the breadth and depth of land use land cover (LUCC) issues that are being addressed by the land change science community by discussing how an existing model, Purdue's Land Transformation Model (LTM), has been used to better understand these very important issues; (2) summarize the current state-of-the-art in LUCC modeling in an attempt to provide a context for the advances in LUCC modeling presented here; (3) use a variety of statistical, data mining and machine learning algorithms to model single LUCC transitions in diverse regions of the world (e.g. United States …
Techno-Economic And Fluid Dynamics Analysis For Growing Microalgae With The Intent Of Producing Biofuel Using A System Model, Leah R. Raffaeli
Techno-Economic And Fluid Dynamics Analysis For Growing Microalgae With The Intent Of Producing Biofuel Using A System Model, Leah R. Raffaeli
Electronic Theses and Dissertations
Techno-economic and systems studies on microalgal growth scenarios to date are abbreviated and missing a number of important variables. By including these variables in a detailed model integrating biology, chemistry, engineering, and financial aspects, a more defined systems analysis is possible. Through optimizing the model productivity based on the resulting net profit, the system analysis results in a more accurate assessment of environmental and economic sustainability of specific algal growth scenarios. Photobioreactor algal growth scenario optimization in the system model has resulted in realistic engineering design requirements based on algal growth requirements and fluid dynamics analysis. Results show feasibility for …
Critical Parts Retrieval And Profit Maximization For Medical Sustainability Using Design For Disassembly And Modularity, Karthik Varma Manikanta Koppella
Critical Parts Retrieval And Profit Maximization For Medical Sustainability Using Design For Disassembly And Modularity, Karthik Varma Manikanta Koppella
Open Access Theses & Dissertations
With rising medical expenditure and increase in medical waste, it is highly imperative to look for ways to recycle and reuse medical products. Even though the reprocessing industry has made use of optimum disassembly techniques in order to derive the maximum possible profit from each medical device, it is limited since most of the medical devices can be hard to recycle without a change in the basic design complying with life cycle goals. This study will introduce a framework which will help to combine the optimum disassembly techniques with the modularity concept in order to come up with recommendations for …
Estimation Of Performance Indices For The Planning Of Sustainable Transportation Systems, Alexander Paz, Pankaj Maheshwari, Pushkin Kachroo, Sajjad Ahmad
Estimation Of Performance Indices For The Planning Of Sustainable Transportation Systems, Alexander Paz, Pankaj Maheshwari, Pushkin Kachroo, Sajjad Ahmad
Civil and Environmental Engineering and Construction Faculty Research
In the context of sustainable transportation systems, previous studies have either focused only on the transportation system or have not used a methodology that enables the treatment of incomplete, vague, and qualitative information associated with the available data. This study proposes a system of systems (SOS) and a fuzzy logic modeling approach. The SOS includes the Transportation, Activity, and Environment systems. The fuzzy logic modeling approach enables the treatment of the vagueness associated with some of the relevant data. Performance Indices (PIs) are computed for each system using a number of performance measures. The PIs illustrate the aggregated performance of …
A Systems Approach To Sustainable Energy Portfolio Development, Saeed Hadian
A Systems Approach To Sustainable Energy Portfolio Development, Saeed Hadian
Electronic Theses and Dissertations
Adequate energy supply has become one of the vital components of human development and economic growth of nations. In fact, major components of the global economy such as transportation services, communications, industrial processes, and construction activities are dependent on adequate energy resources. Even mining and extraction of energy resources, including harnessing the forces of nature to produce energy, are dependent on accessibility of sufficient energy in the appropriate form at the desired location. Therefore, energy resource planning and management to provide appropriate energy in terms of both quantity and quality has become a priority at the global level. The increasing …