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Articles 1 - 30 of 537
Full-Text Articles in Mechanical Engineering
Lunar In-Situ Aluminum Production Through Molten Salt Electrolysis (Lisap-Mse), Jacob Ortega, Jeffrey D. Smith, Fateme Rezaei, David Bayless, William P. Schonberg, Daniel S. Stutts, Daoru Frank Han
Lunar In-Situ Aluminum Production Through Molten Salt Electrolysis (Lisap-Mse), Jacob Ortega, Jeffrey D. Smith, Fateme Rezaei, David Bayless, William P. Schonberg, Daniel S. Stutts, Daoru Frank Han
NASA-Missouri Space Grant Consortium
The goal of Artemis is to establish a sustained presence on the Moon. To achieve so, numerous resources are necessary. The Moon contains several essential elements needed to sustain human presence. Most of those elements are trapped in the form of minerals. To refine those minerals into useful materials, reduction methods are needed. Most reduction methods on Earth require large amounts of mass and power which is unrealistic for early stages of building a lunar base. To solve this problem, we are developing a concept of Lunar In-Situ Aluminum Production through Molten Salt Electrolysis (LISAP-MSE).
The LISAP-MSE project, if successful, …
Nanocomposites For Applications In Ultracapacitors Based Energy Storage Systems, Duy Pham, Jake Ivirn, Jacob Dileonardi, Ben Mckinney, Ashish Aphale
Nanocomposites For Applications In Ultracapacitors Based Energy Storage Systems, Duy Pham, Jake Ivirn, Jacob Dileonardi, Ben Mckinney, Ashish Aphale
Symposium of Student Scholars
Electrochemical capacitors also known as ultracapacitor is a potential technology for modern energy storage due to their high performance of charge capacity and fast charge-discharge rates. The superior performance of ultracapacitors will help to meet demands for energy systems in applications such as transportation. Ultracapacitor device consists of electrodes, a polymeric separator, and an electrolyte. Under the applied voltage, the migration of ions between two porous electrodes from the bulk of the electrolyte governs the performance of such devices. In this work, we present experimental research on the synthesis of different electrode materials using atomically thick graphene and conducting polymers. …
Development Of Electrochemical Sensors For The Detection Of Trace Contaminants, Quang Lam, Ashish Aphale, Duy Pham
Development Of Electrochemical Sensors For The Detection Of Trace Contaminants, Quang Lam, Ashish Aphale, Duy Pham
Symposium of Student Scholars
Several industrial processes, such as stainless steel fabrication and textiles, produce heavy metal byproducts such as chromium. These heavy metals have detrimental effects on the surrounding environments and humans. Recently, electrochemical-driven sensors have been studied and show great potential in miniaturization while still providing measurements at a low cost. In addition, atomically thin allotropes of carbon, graphene, and graphene oxide have shown remarkable results in producing a highly responsive and selective sensor platform. These results are due to their excellent electrical conductivity, high surface area for utility, and physicochemical stability. The existing challenge for electrochemical-driven sensors is understanding the molecular …
3d Printing Of Lunar Regolith Based Ceramics Via The Dlp Method, Ricardo Vasquez
3d Printing Of Lunar Regolith Based Ceramics Via The Dlp Method, Ricardo Vasquez
2022 MME Undergraduate Research Symposium
Ceramic parts generally have poor machinability due to their high hardness and high brittleness. Researchers and industries have overcome the difficulty of machining ceramics and have manufactured parts with intricate geometry by using pre-ceramic polymers in stereolithography (SLA) 3D printing and using slurries based on ceramic powder and photopolymer resin in digital light processing (DLP) 3D printing, among other methods. This presentation will discuss the processes involved in the 3D printing of ceramic and ceramic composite parts via the DLP technique. A vital step in ceramic 3D printing is to optimize the printing parameters for a specific slurry formulation in …
In-Operando Optical Observation/Visualization Of Lithium-Sulfur Battery Discharge Process, Ana G. Claus
In-Operando Optical Observation/Visualization Of Lithium-Sulfur Battery Discharge Process, Ana G. Claus
2022 MME Undergraduate Research Symposium
Lithium−Sulfur (Li-S) batteries have attracted attention due to their high-energy density, 2500 Wh/𝑘𝑔𝑐𝑒𝑙𝑙 [1], and theoretical capacity of 1672 mAh/g-S [2]. In addition to that, sulfur abundance makes it a good candidate for rechargeable batteries. However, Li-S system has a few challenges that hinder its commercialization. Such as the insulating nature of the sulfur element, volume expansion, capacity fade due to intermittent polysulfide dissolution in the electrolyte and drop in capacity during the initial discharge cycles [3]. Herein, we have designed a Li-S in-operando optical observation cell, which allowed us to visualize the formation of higher to lower-order polysulfides as …
Removal Of Selenium And Heavy Metals From Coal Combustion Residuals Wastewater Using Surface Modified Iron Based Media, Madan Tandukar, Alex Korff, Andrew Vincent, Chris Hardin
Removal Of Selenium And Heavy Metals From Coal Combustion Residuals Wastewater Using Surface Modified Iron Based Media, Madan Tandukar, Alex Korff, Andrew Vincent, Chris Hardin
World of Coal Ash Proceedings
No abstract provided.
Epri Research On Groundwater-Surface Water Interactions Near Coal Combustion Product Sites, Bruce Hensel, Jeff Thomas, Tim Towey, Anthony Aufdenkampe
Epri Research On Groundwater-Surface Water Interactions Near Coal Combustion Product Sites, Bruce Hensel, Jeff Thomas, Tim Towey, Anthony Aufdenkampe
World of Coal Ash Proceedings
No abstract provided.
Cqa - A Common Sense Approach At Becoming The Mvp On Your Next Project, James Price, Michael Fisher, John Metcalf
Cqa - A Common Sense Approach At Becoming The Mvp On Your Next Project, James Price, Michael Fisher, John Metcalf
World of Coal Ash Proceedings
No abstract provided.
Challenges & Pragmatic Solutions For The Design And Construction Of A 300-Acre Ccr Landfill Located In The Southwestern Us - A Case Study, Andy Lucas, Jason Pokorny
Challenges & Pragmatic Solutions For The Design And Construction Of A 300-Acre Ccr Landfill Located In The Southwestern Us - A Case Study, Andy Lucas, Jason Pokorny
World of Coal Ash Proceedings
No abstract provided.
State Of The Practice For Compaction Quality Of Dry Stack Ccr Storage Facilities, Bruce Cunningham, Pavana Vennapusa, David J. White, Robert Eric Hageman
State Of The Practice For Compaction Quality Of Dry Stack Ccr Storage Facilities, Bruce Cunningham, Pavana Vennapusa, David J. White, Robert Eric Hageman
World of Coal Ash Proceedings
No abstract provided.
Hybrid Closure Approach: Constructing Bidding Lessons Learned, Brian Harthun, P.E.
Hybrid Closure Approach: Constructing Bidding Lessons Learned, Brian Harthun, P.E.
World of Coal Ash Proceedings
No abstract provided.
Groundwater Compliance & Strategy Insights For Ccr Rule Stakeholders, Sheryl Smith, Mark Johnson
Groundwater Compliance & Strategy Insights For Ccr Rule Stakeholders, Sheryl Smith, Mark Johnson
World of Coal Ash Proceedings
No abstract provided.
Ecological Risk Assessment For Coal Combustion Residuals And Herrington Lake Adjacent To The Kentucky Utilities E.W. Brown Generating Station, Mary Sorensen, Alex Smith, Mark Nielsen
Ecological Risk Assessment For Coal Combustion Residuals And Herrington Lake Adjacent To The Kentucky Utilities E.W. Brown Generating Station, Mary Sorensen, Alex Smith, Mark Nielsen
World of Coal Ash Proceedings
No abstract provided.
Geochemical Explanations For Strong Natural Attenuation Of Molybdenum, Selenium, And Lithium In A Groundwater Plume, Jacob Chu, J. P. Brandenburg
Geochemical Explanations For Strong Natural Attenuation Of Molybdenum, Selenium, And Lithium In A Groundwater Plume, Jacob Chu, J. P. Brandenburg
World of Coal Ash Proceedings
No abstract provided.
Ccr Landfill Construction & Operation Under Subtitle D, Thomas R. Gredell
Ccr Landfill Construction & Operation Under Subtitle D, Thomas R. Gredell
World of Coal Ash Proceedings
No abstract provided.
Use Of A Net Environmental Benefit Analysis To Evaluate Remedial Options To Address Coal Ash – Case Studies, Joseph Nicolette, Michael Rockel
Use Of A Net Environmental Benefit Analysis To Evaluate Remedial Options To Address Coal Ash – Case Studies, Joseph Nicolette, Michael Rockel
World of Coal Ash Proceedings
No abstract provided.
Monitoring Well Integrity And Performance Part Ii - Seeing The Benefits, Bryan R. Hansen, Jacob G. Gruzalski, Thomas S. Dicken, Rock J. Vitale
Monitoring Well Integrity And Performance Part Ii - Seeing The Benefits, Bryan R. Hansen, Jacob G. Gruzalski, Thomas S. Dicken, Rock J. Vitale
World of Coal Ash Proceedings
No abstract provided.
Hybrid Closure Approach: Design Investigation Review, Brian Sperrazza, P.E., P.G.
Hybrid Closure Approach: Design Investigation Review, Brian Sperrazza, P.E., P.G.
World of Coal Ash Proceedings
No abstract provided.
Use Of Tritium-Helium Isotopes For Vertical Delineation Of Ccr Constituents In Groundwater, Lane Dorman, Lauren Fitzgerald, Ryan Fimmen, Robert Trey Singleton
Use Of Tritium-Helium Isotopes For Vertical Delineation Of Ccr Constituents In Groundwater, Lane Dorman, Lauren Fitzgerald, Ryan Fimmen, Robert Trey Singleton
World of Coal Ash Proceedings
No abstract provided.
Construction Risk Management Considerations For Ccr Surface Impoundment Closures, John P. Seymour, Chris Robb
Construction Risk Management Considerations For Ccr Surface Impoundment Closures, John P. Seymour, Chris Robb
World of Coal Ash Proceedings
No abstract provided.
Ccr Beneficial Use Data Capture And Reporting, Joe Ploetz, Kevin Foody
Ccr Beneficial Use Data Capture And Reporting, Joe Ploetz, Kevin Foody
World of Coal Ash Proceedings
No abstract provided.
The Intersection Of The Ccr Rule, Superfund, And Irrigation On The Great Plains, Shane D. Mcdonald, Jillian Troyer, Robert Kleinmann, Marty Stange
The Intersection Of The Ccr Rule, Superfund, And Irrigation On The Great Plains, Shane D. Mcdonald, Jillian Troyer, Robert Kleinmann, Marty Stange
World of Coal Ash Proceedings
No abstract provided.
Using Shear Wave Velocity Measurements To Identify Cemented Ccr, Andrew Fuggle, Longde Jin, Haley Roberts
Using Shear Wave Velocity Measurements To Identify Cemented Ccr, Andrew Fuggle, Longde Jin, Haley Roberts
World of Coal Ash Proceedings
No abstract provided.
Wind Performance Evaluation Of Engineered Turf Final Cover And Exposed Geomembrane, Ming Zhu, Bryan Scholl
Wind Performance Evaluation Of Engineered Turf Final Cover And Exposed Geomembrane, Ming Zhu, Bryan Scholl
World of Coal Ash Proceedings
No abstract provided.
Attenuation And Source Zone Depletion Of Boron From Coal Combustion Residuals In Groundwater, J.P. Brandenburg, Dave Hagen
Attenuation And Source Zone Depletion Of Boron From Coal Combustion Residuals In Groundwater, J.P. Brandenburg, Dave Hagen
World of Coal Ash Proceedings
No abstract provided.
Building Defensibility For Mna Remedy Selection, Michael Healey, Jeff Roberts, Sarah Cronk, Andrzej Przepiora
Building Defensibility For Mna Remedy Selection, Michael Healey, Jeff Roberts, Sarah Cronk, Andrzej Przepiora
World of Coal Ash Proceedings
No abstract provided.
Hybrid Closure Approach: Project Summary, Glenn Leo, P.E.
Hybrid Closure Approach: Project Summary, Glenn Leo, P.E.
World of Coal Ash Proceedings
No abstract provided.
Whole Effluent Toxicity (Wet) Assessments And Experimental Considerations For Evaluating Coagulation Agents And Polymers For Wastewater Treatment Of Coal Combustion Products, Konrad J. Kulacki, William L. Goodfellow Jr., Margaret L. Fleming, Alexandra N. Steele
Whole Effluent Toxicity (Wet) Assessments And Experimental Considerations For Evaluating Coagulation Agents And Polymers For Wastewater Treatment Of Coal Combustion Products, Konrad J. Kulacki, William L. Goodfellow Jr., Margaret L. Fleming, Alexandra N. Steele
World of Coal Ash Proceedings
No abstract provided.
Chemical Compatibility And Hydraulic Performance Of Lightweight Polymer Modified Gcls, Michael S. Donovan, Barbara Gebka, Dennis Wind, Reza Gorakhki
Chemical Compatibility And Hydraulic Performance Of Lightweight Polymer Modified Gcls, Michael S. Donovan, Barbara Gebka, Dennis Wind, Reza Gorakhki
World of Coal Ash Proceedings
No abstract provided.
Future Management & Treatment Of Non-Ccr Waste Streams At Midwest Coal-Fired Power Plants With Case Studies, Jason Pokorny, Lee W. Saunders
Future Management & Treatment Of Non-Ccr Waste Streams At Midwest Coal-Fired Power Plants With Case Studies, Jason Pokorny, Lee W. Saunders
World of Coal Ash Proceedings
No abstract provided.