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Articles 391 - 420 of 647

Full-Text Articles in Materials Science and Engineering

Effect Of Post-Consumer Content And Bioplastic Incorporation On Polymeric Resin In Consumer Applications, Shelby Bicknell May 2020

Effect Of Post-Consumer Content And Bioplastic Incorporation On Polymeric Resin In Consumer Applications, Shelby Bicknell

Electronic Theses & Dissertations

Controversy surrounds the use of plastic products, primarily due to their potentially negative impact on the environment at the end of their lifecycle. The most widely used plastics are manufactured from petrochemicals such as petroleum, coal or natural gas. Petrochemical plastics are not able to readily breakdown in the environment, which aggravates the existing pollution problems. Fortunately, there are eco-friendly alternatives to petrochemical-based plastics. Bioplastics may be derived from renewable sources, biodegradable, or both. Bio-based plastics are plastics that may be derived from renewable biomass sources including, but not limited to, vegetable oils, cornstarch, straw, woodchips, and food waste. They …


Macro - And Microstructure Evaluation And Field Applications Of Concrete With Recycled Glass Pozzolan, Marija Krstic Jan 2020

Macro - And Microstructure Evaluation And Field Applications Of Concrete With Recycled Glass Pozzolan, Marija Krstic

Dissertations and Theses

Concrete is the most used material in the world, second only to water. Conventional concrete is produced with Portland cement (PC). The production of cement is an energy intensive operation that has raised significant environmental concerns, since one ton of cement generates an equal ton of CO2. In the USA about 90 million tons of cement are used annually, with 3 million tons used in New York. Most contemporary concrete applications for buildings and infrastructure use high-performance concrete (HPC) mixtures which are produced by replacing a percentage of cement with supplementary cementitious materials (SCMs), consisting mainly of fly-ash …


Interfaces In Lead-Free Tin Perovskite Photovoltaics: An Investigation Of Energetics, Ion Mobility, Surface Modification, And Performance, Alex Boehm Jan 2020

Interfaces In Lead-Free Tin Perovskite Photovoltaics: An Investigation Of Energetics, Ion Mobility, Surface Modification, And Performance, Alex Boehm

Theses and Dissertations--Chemistry

Halide perovskites have generated tremendous interest as low-cost semiconductors for optoelectronics, such as photovoltaics, lasers, and light emitting diodes due to their extraordinary optical and transport properties. Perovskite photovoltaics in particular have demonstrated a meteoric rise in power conversion efficiencies and drawn considerable interest as a next-generation solar energy technology. The rapid development has centered around lead-based derivatives, and concerns regarding the toxicity of lead has sparked interest in low toxicity and more environmentally friendly perovskite derivatives. In this regime tin (Sn) is regarded as a prominent alternative owing to the ideal bandgap and reduced toxicity exhibited by Sn-halide perovskites. …


Magnetocaloric Effect Near Room Temperature In Quintenary And Sextenary Heusler Alloys, Benjamin D. White, R. I. Barabash, O. M. Barabash, I. Jeon, M. B. Maple Oct 2019

Magnetocaloric Effect Near Room Temperature In Quintenary And Sextenary Heusler Alloys, Benjamin D. White, R. I. Barabash, O. M. Barabash, I. Jeon, M. B. Maple

All Faculty Scholarship for the College of the Sciences

An inverse magnetocaloric effect is studied in Ni2Mn1+xX1-x-type Heusler alloys. Principally known for their shape-memory properties, these alloys also exhibit significant entropy and temperature changes (ΔS and ΔTAd, respectively) under adiabatic conditions when a modest magnetic field is applied. We investigated the impact on magnetocaloric properties of introducing substantial chemical disorder on the X-site (X = Si, Ga, In), of replacing Ni with nonmagnetic Ag, and of replacing a small amount of Mn with Gd. While a reduction in ΔS is observed in the first two cases, we observe a significant enhancement …


Evaluation Of Biodegradability Characteristics Of Cellulose-Based Film As Per Is/Iso 14855-1, Narayan C. Saha Dr, Gaurav Madhu Dr, Diksha B. Kadu Ms Aug 2019

Evaluation Of Biodegradability Characteristics Of Cellulose-Based Film As Per Is/Iso 14855-1, Narayan C. Saha Dr, Gaurav Madhu Dr, Diksha B. Kadu Ms

Journal of Applied Packaging Research

Biodegradable polymers (especially those derived from plant sources) begin their lifecycle as renewable resources, usually in the form of starch or cellulose. In this paper, the evaluation of biodegradability of cellulose-based polymer film under controlled composting conditions as per the guidelines of IS/ISO 14855 (Part-1) standard has been described. Microcrystalline cellulose (MCC) powder was taken as positive-control polymer. The apparatus used to analyse the degree and rate of biodegradation was developed indigenously. The validation of the biodegradability testing apparatus was also performed as per the prescribed test method given in IS/ISO 14855-1.


Using Numerical Models Of Dewatering At Coal Ash Impoundments To Understand Cost And Schedule, Peter Bell, Joel Thompson, Don Fuller May 2019

Using Numerical Models Of Dewatering At Coal Ash Impoundments To Understand Cost And Schedule, Peter Bell, Joel Thompson, Don Fuller

World of Coal Ash Proceedings

No abstract provided.


Investigating Ccr Units And Evaluating The Physical Properties Of Ponded Ccr, David Skeggs, Zahra Aghazadeh, Rachel Combs May 2019

Investigating Ccr Units And Evaluating The Physical Properties Of Ponded Ccr, David Skeggs, Zahra Aghazadeh, Rachel Combs

World of Coal Ash Proceedings

No abstract provided.


Demonstration Of “No Migration” Alternative Performance Standard For Ccr Facilities In Arid To Semi- Arid Regions Using Unsaturated Zone Modeling, James Aiken, Katy Lindstom May 2019

Demonstration Of “No Migration” Alternative Performance Standard For Ccr Facilities In Arid To Semi- Arid Regions Using Unsaturated Zone Modeling, James Aiken, Katy Lindstom

World of Coal Ash Proceedings

No abstract provided.


State Vs Federal Ccr Rule Regulations: Comparisons And Impacts, Nicole Kron, Eric Nelson May 2019

State Vs Federal Ccr Rule Regulations: Comparisons And Impacts, Nicole Kron, Eric Nelson

World of Coal Ash Proceedings

No abstract provided.


Coal Combustion Residuals Management Using Geotextile Containers- Considerations For Various Options, Randall Wilcox, Gregg Lebster, Bryan Hamilton, Thomas Stephens May 2019

Coal Combustion Residuals Management Using Geotextile Containers- Considerations For Various Options, Randall Wilcox, Gregg Lebster, Bryan Hamilton, Thomas Stephens

World of Coal Ash Proceedings

No abstract provided.


Continuous, Real-Time Tss Monitoring Verifies Effluent Quality And Coal Ash Management Performance While Reducing Compliance Costs, Dave Fraley, Chris Bauman, Dave Donahue May 2019

Continuous, Real-Time Tss Monitoring Verifies Effluent Quality And Coal Ash Management Performance While Reducing Compliance Costs, Dave Fraley, Chris Bauman, Dave Donahue

World of Coal Ash Proceedings

No abstract provided.


Effect Of Coal Fly Ash On Agricultural Crops :Second Phase Showcase Project On Use Of Fly Ash In Agriculture In And Around Thermal Power Station Areas Of National Thermal Power Corporation Ltd., India., K. Arivazhagan, M. Ravichandran, S.K. Dube, V.K. Mathur May 2019

Effect Of Coal Fly Ash On Agricultural Crops :Second Phase Showcase Project On Use Of Fly Ash In Agriculture In And Around Thermal Power Station Areas Of National Thermal Power Corporation Ltd., India., K. Arivazhagan, M. Ravichandran, S.K. Dube, V.K. Mathur

World of Coal Ash Proceedings

No abstract provided.


Advantages Of Single Source Contracting In-Plant Ccr Services, Kevin Foody, Marcella Funderburg, Blake Whittington May 2019

Advantages Of Single Source Contracting In-Plant Ccr Services, Kevin Foody, Marcella Funderburg, Blake Whittington

World of Coal Ash Proceedings

No abstract provided.


Design And Construction Of A Ccr Landfill Adjacent To The Missouri River, Thomas Gredell, Jeffrey Fouse, Jay Ellington May 2019

Design And Construction Of A Ccr Landfill Adjacent To The Missouri River, Thomas Gredell, Jeffrey Fouse, Jay Ellington

World of Coal Ash Proceedings

No abstract provided.


Geochemical Tools For Groundwater Monitoring At Coal Fired Utilities, Jeff Gillow, Bruce Sass, Hari Parthasarathy May 2019

Geochemical Tools For Groundwater Monitoring At Coal Fired Utilities, Jeff Gillow, Bruce Sass, Hari Parthasarathy

World of Coal Ash Proceedings

No abstract provided.


Bottom Ash Handling Conversions – Lessons Learned, Dustin Doerr May 2019

Bottom Ash Handling Conversions – Lessons Learned, Dustin Doerr

World of Coal Ash Proceedings

No abstract provided.


Encapsulation Of Thermoevaporation Brines Using Coal Combustion Residuals, Dale Prentice, Kirk Ellison, Gaurav Sant May 2019

Encapsulation Of Thermoevaporation Brines Using Coal Combustion Residuals, Dale Prentice, Kirk Ellison, Gaurav Sant

World of Coal Ash Proceedings

No abstract provided.


Recycling Of Coal Ash In Agriculture: Use Of Vermicomposting Biotechnology, G.N. Chattopadhyay, Gourab Roy, Wasim Iftikar May 2019

Recycling Of Coal Ash In Agriculture: Use Of Vermicomposting Biotechnology, G.N. Chattopadhyay, Gourab Roy, Wasim Iftikar

World of Coal Ash Proceedings

No abstract provided.


Surface Water And Groundwater Mixing In Alluvial Floodplains: A Significant Issue For Understanding Contaminant Transport At Coal Ash Facilities Adjacent To Rivers, Joel Thompson, Peter Bell, John Griggs May 2019

Surface Water And Groundwater Mixing In Alluvial Floodplains: A Significant Issue For Understanding Contaminant Transport At Coal Ash Facilities Adjacent To Rivers, Joel Thompson, Peter Bell, John Griggs

World of Coal Ash Proceedings

No abstract provided.


Alternate Source Demonstration Considerations Within The Appalachian Basin, Joseph Robb, Larry Mastera May 2019

Alternate Source Demonstration Considerations Within The Appalachian Basin, Joseph Robb, Larry Mastera

World of Coal Ash Proceedings

No abstract provided.


Locating And Permitting A Ccr Landfill Adjacent To The Missouri River, Paul Reitz, Thomas Gredell, Jay Ellington May 2019

Locating And Permitting A Ccr Landfill Adjacent To The Missouri River, Paul Reitz, Thomas Gredell, Jay Ellington

World of Coal Ash Proceedings

No abstract provided.


Is Zero Solid Waste Possible For Fly Ash Produced From Any Coal-Fired Power Plant?, Jinder Jow, Yang Dong, Shuqiang Ding, Li Qiao May 2019

Is Zero Solid Waste Possible For Fly Ash Produced From Any Coal-Fired Power Plant?, Jinder Jow, Yang Dong, Shuqiang Ding, Li Qiao

World of Coal Ash Proceedings

No abstract provided.


Groundwater Corrective Action Assessment Using Fate And Transport Modeling, Brian Hennings, Glenn Luke, Jacob Walczak May 2019

Groundwater Corrective Action Assessment Using Fate And Transport Modeling, Brian Hennings, Glenn Luke, Jacob Walczak

World of Coal Ash Proceedings

No abstract provided.


The Application Of Natural Attenuation At Coal Combustion Residual (Ccr) Sites, Ryan Fimmen, Allison Kreinberg May 2019

The Application Of Natural Attenuation At Coal Combustion Residual (Ccr) Sites, Ryan Fimmen, Allison Kreinberg

World of Coal Ash Proceedings

No abstract provided.


Coal Ash 2.0: The Calculus Of The Ore Body, Claudio Arato May 2019

Coal Ash 2.0: The Calculus Of The Ore Body, Claudio Arato

World of Coal Ash Proceedings

No abstract provided.


Extensive Real Time Monitoring Of Ash Response To Construction-Induced Activity, Anita Perry, Alex Rudy, Kenny Campbell, Ryan Smith May 2019

Extensive Real Time Monitoring Of Ash Response To Construction-Induced Activity, Anita Perry, Alex Rudy, Kenny Campbell, Ryan Smith

World of Coal Ash Proceedings

No abstract provided.


Alkali-Silica Reaction Of Geopolymer Concrete Made Of Circulating Fluidized Bed Combustion Fly Ash, Chang-Seon Shon, Dong-Un Lee May 2019

Alkali-Silica Reaction Of Geopolymer Concrete Made Of Circulating Fluidized Bed Combustion Fly Ash, Chang-Seon Shon, Dong-Un Lee

World of Coal Ash Proceedings

No abstract provided.


Large Scale Processing Of Fly Ash And International Supply Chains, Rishit Dalal May 2019

Large Scale Processing Of Fly Ash And International Supply Chains, Rishit Dalal

World of Coal Ash Proceedings

No abstract provided.


Fgd Wastewater Treatment For Low-Capacity Stations, Maxwell Wallack, David Weakley May 2019

Fgd Wastewater Treatment For Low-Capacity Stations, Maxwell Wallack, David Weakley

World of Coal Ash Proceedings

No abstract provided.


Profitable Utilization Of Non-Standard Fly Ash And Ponded Ash With Commercialized Technology, Erik Severin, Alex Koszo May 2019

Profitable Utilization Of Non-Standard Fly Ash And Ponded Ash With Commercialized Technology, Erik Severin, Alex Koszo

World of Coal Ash Proceedings

No abstract provided.