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Articles 1531 - 1560 of 5926
Full-Text Articles in Mechanical Engineering
A Soft-Robotic Harbor Porpoise Pectoral Fin Driven By Coiled Polymer Actuators As Artificial Muscles, Robert Hunt, Sarah Trabia, Zakai Olsen, Kwang Kim
A Soft-Robotic Harbor Porpoise Pectoral Fin Driven By Coiled Polymer Actuators As Artificial Muscles, Robert Hunt, Sarah Trabia, Zakai Olsen, Kwang Kim
Mechanical Engineering Faculty Research
Biomimicry is an approach in science and engineering to overcome human challenges by designing materials and systems modeled after nature. Selected applications of biomimicry include catheters, hearing devices, and artificial appendages such as arms, legs, and fingers. The inspiration for this study is the hydrofoil-like structured pectoral fin of the harbor porpoise whale that is ultimately useful for studying fluid-structure interactions, drag, lift, and laminar-to-turbulent transitions. The pectoral fin is fabricated by manipulating computed tomography (CT) scans into 3D models using Simpleware ScanIP and post-processed in Autodesk for printing. An array of thermally driven coiled polymer actuators (CPA) fabricated from …
Non-Einstein Viscosity Phenomenon Of Acrylonitrile–Butadiene–Styrene Composites Containing Lignin–Polycaprolactone Particulates Highly Dispersed By High-Shear Stress, Sing-Hoon Kim, Kisuk Choi, Kyouk Ryeol Choi, Taesung Kim, Jonghwan Suhr, Kwang Jin Kim, Hyoung Jin Choi, Jae-Do Nam
Non-Einstein Viscosity Phenomenon Of Acrylonitrile–Butadiene–Styrene Composites Containing Lignin–Polycaprolactone Particulates Highly Dispersed By High-Shear Stress, Sing-Hoon Kim, Kisuk Choi, Kyouk Ryeol Choi, Taesung Kim, Jonghwan Suhr, Kwang Jin Kim, Hyoung Jin Choi, Jae-Do Nam
Mechanical Engineering Faculty Research
Lignin powder was modified via ring-opening polymerization of caprolactone to form a lignin–polycaprolactone (LPCL) particulate. The LPCL particulates were mixed with an acrylonitrile–butadiene–styrene (ABS) matrix at an extremely high rotational speed of up to 3000 rpm, which was achieved by a closed-loop screw mixer and in-line melt extruder. Using this high-shear extruding mixer, the LPCL particulate size was controlled in the range of 3395 nm (conventional twin-screw extrusion) down to 638 nm (high-shear mixer of 3000 rpm) by altering the mixing speed and time. The resulting LPCL/ABS composites clearly showed non-Einstein viscosity phenomena, exhibiting reduced viscosity (2130 Pa·s) compared to …
Maximizing And Modeling Malonyl-Coa Production In Escherichia Coli, Tatiana Thompson Silveira Mello
Maximizing And Modeling Malonyl-Coa Production In Escherichia Coli, Tatiana Thompson Silveira Mello
LSU Master's Theses
In E. coli, fatty acid synthesis is catalyzed by the enzyme acetyl-CoA carboxylase (ACC), which converts acetyl-CoA into malonyl-CoA. Malonyl-CoA is a major building block for numerous of bioproducts. Multiple parameters regulate the homeostatic cellular concentration of malonyl-CoA, keeping it at a very low level. Understanding how these parameters affect the bacterial production of malonyl-CoA is fundamental to maximizing it and its bioproducts. To this end, competing pathways consuming malonyl-CoA can be eliminated, and optimal nutritional and environmental conditions can be provided to the fermentation broth. Most previous studies utilized genetic modifications, expensive consumables, and high-cost quantification methods, making …
Nano Fab Lab 63, Brian K. Deemer, Josh Clemons, Nick Brodine, Delaney Fitzsimmons
Nano Fab Lab 63, Brian K. Deemer, Josh Clemons, Nick Brodine, Delaney Fitzsimmons
Mechanical Engineering
Lawrence Livermore National Laboratories (LLNL) has several steps in the production process for ceramic nanofiber tubes that they would like to improve - electrospinning, cutting, rolling, sealing and heat treating. We undertook the challenge to deliver LLNL with a semi-automated process that efficiently integrates the steps of cutting, rolling, and sealing to save time and improve control over end dimensions. In this document, we discuss the technical background of the manufacturing steps currently followed to create nanofiber tubes, identify which steps are incorporated in our prototype and explain how they will interface with one another, define the design requirements, present …
Using Numerical Models Of Dewatering At Coal Ash Impoundments To Understand Cost And Schedule, Peter Bell, Joel Thompson, Don Fuller
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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.
Between Covers And Liners The Varied Roles Of Vertical Barriers, Brian Johnson, Kenneth Daly
Between Covers And Liners The Varied Roles Of Vertical Barriers, Brian Johnson, Kenneth Daly
World of Coal Ash Proceedings
No abstract provided.