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Articles 2551 - 2580 of 13031
Full-Text Articles in Engineering
Repair Of Blocked Gravity Leachate Collection Line Using Trenchless Techniques, Michael G. Rowland, Pe, Brian G. Palmer, Pe
Repair Of Blocked Gravity Leachate Collection Line Using Trenchless Techniques, Michael G. Rowland, Pe, Brian G. Palmer, Pe
World of Coal Ash Proceedings
No abstract provided.
Mineralogical Transformation Of Coal Ash After Wet Pluviation, Chin-Min Cheng, Julia Sheets, Mehedy Amin, Omer Bozok
Mineralogical Transformation Of Coal Ash After Wet Pluviation, Chin-Min Cheng, Julia Sheets, Mehedy Amin, Omer Bozok
World of Coal Ash Proceedings
No abstract provided.
A Risk Evaluation Of Controlled Low-Strength Materials (Clsm) Containing Coal Combustion Products (Ccps) In Construction Projects, Kathleen R. Radloff, Ari S. Lewis, Andrew B. Bittner, Qian Zhang
A Risk Evaluation Of Controlled Low-Strength Materials (Clsm) Containing Coal Combustion Products (Ccps) In Construction Projects, Kathleen R. Radloff, Ari S. Lewis, Andrew B. Bittner, Qian Zhang
World of Coal Ash Proceedings
No abstract provided.
The Horizontal Reactive Treatment Well (Hrx Well®): A New Remediation Technology For In Situ Contaminant Flux Control, Craig Eric Divine, Jesse Wright, Jack Wang, Margy Gentile
The Horizontal Reactive Treatment Well (Hrx Well®): A New Remediation Technology For In Situ Contaminant Flux Control, Craig Eric Divine, Jesse Wright, Jack Wang, Margy Gentile
World of Coal Ash Proceedings
No abstract provided.
Emerging Clean Water Act Issues For Ccr Surface Impoundments, John Kondziolka, Kathleen Radloff, Andrew Bittner
Emerging Clean Water Act Issues For Ccr Surface Impoundments, John Kondziolka, Kathleen Radloff, Andrew Bittner
World of Coal Ash Proceedings
No abstract provided.
Dewatering Ash – Progress Over The Last 5 Years, Greg M. Landry, Paul C. Schmall
Dewatering Ash – Progress Over The Last 5 Years, Greg M. Landry, Paul C. Schmall
World of Coal Ash Proceedings
No abstract provided.
Towards Development Of Sustainable Asphalt Pavement Using Off-Spec Fly Ash, Ahmed Faheem, Ahmed Abdalla, Konstantin Sobolev
Towards Development Of Sustainable Asphalt Pavement Using Off-Spec Fly Ash, Ahmed Faheem, Ahmed Abdalla, Konstantin Sobolev
World of Coal Ash Proceedings
No abstract provided.
Ccr Corrective Measures Assessment & Implementation – A Technical Roadmap And Smart Communication/Management Strategies, Steven F. Putrich, David Hagen
Ccr Corrective Measures Assessment & Implementation – A Technical Roadmap And Smart Communication/Management Strategies, Steven F. Putrich, David Hagen
World of Coal Ash Proceedings
No abstract provided.
Upgrading The Properties Of Fly-Ash From Long-Term Storage, With Simultaneous Deagglomeration, Drying & Classification Using Atritor Technology, Andrew Rigg, Scott Coley, Paul Machacek
Upgrading The Properties Of Fly-Ash From Long-Term Storage, With Simultaneous Deagglomeration, Drying & Classification Using Atritor Technology, Andrew Rigg, Scott Coley, Paul Machacek
World of Coal Ash Proceedings
No abstract provided.
Lime Activated Coal Ash For Ccr Pond Closure Projects, Larry Gibson, Karen Slade
Lime Activated Coal Ash For Ccr Pond Closure Projects, Larry Gibson, Karen Slade
World of Coal Ash Proceedings
No abstract provided.
A Thermodynamic-Guided Approach To Recycle Off-Spec Fly Ash Into Lightweight Aggregate, Mohammad Balapour, Newell Moser, Edward J. Garboczi, Grace Hsuan
A Thermodynamic-Guided Approach To Recycle Off-Spec Fly Ash Into Lightweight Aggregate, Mohammad Balapour, Newell Moser, Edward J. Garboczi, Grace Hsuan
World of Coal Ash Proceedings
No abstract provided.
Beneficial Use Of Fly Ash As A Sustainable Building Material, Randall Stremmel, Thomas Weyand
Beneficial Use Of Fly Ash As A Sustainable Building Material, Randall Stremmel, Thomas Weyand
World of Coal Ash Proceedings
No abstract provided.
In-Situ Stabilization For Hydraulic Control At Ccr Sites, Paul R. Lear
In-Situ Stabilization For Hydraulic Control At Ccr Sites, Paul R. Lear
World of Coal Ash Proceedings
No abstract provided.
Study To Evaluate Future Ash Beneficial Use, Corina Maria Aldea, Gil M. Haines, Matt Bishop
Study To Evaluate Future Ash Beneficial Use, Corina Maria Aldea, Gil M. Haines, Matt Bishop
World of Coal Ash Proceedings
No abstract provided.
Coal Quality & Combustion Impacts On Ash Chemistry, Rod Hatt
Coal Quality & Combustion Impacts On Ash Chemistry, Rod Hatt
World of Coal Ash Proceedings
No abstract provided.
Real Time Pore Pressure Monitoring Of Ash And Construction-Induced Responses: The State Of The Practice, Paul C. Schmall, Chris Hardin, Kenneth Campbell, Ryan Smith
Real Time Pore Pressure Monitoring Of Ash And Construction-Induced Responses: The State Of The Practice, Paul C. Schmall, Chris Hardin, Kenneth Campbell, Ryan Smith
World of Coal Ash Proceedings
No abstract provided.
Field And Laboratory Methods To Demonstrate Monitored Natural Attenuation For Coal Combustion Product Constituents In Groundwater, Jim Redwine, Masa Kanematsu, Kristi Mitchell, Dimitri Vlassopoulos
Field And Laboratory Methods To Demonstrate Monitored Natural Attenuation For Coal Combustion Product Constituents In Groundwater, Jim Redwine, Masa Kanematsu, Kristi Mitchell, Dimitri Vlassopoulos
World of Coal Ash Proceedings
No abstract provided.
Addressing Public Fear With Facts—Tva Coal Ash Fact Sheets, Melissa Hedgecoth, Lisa Jn Bradley, Rock Vitale, Neil Carriker
Addressing Public Fear With Facts—Tva Coal Ash Fact Sheets, Melissa Hedgecoth, Lisa Jn Bradley, Rock Vitale, Neil Carriker
World of Coal Ash Proceedings
No abstract provided.
Developing Single Use Deposits Of Coal Derived Fly Ash As A National Resource, Nigel Cooke
Developing Single Use Deposits Of Coal Derived Fly Ash As A National Resource, Nigel Cooke
World of Coal Ash Proceedings
No abstract provided.
Six Years Of Service, Supply, And Success: Processing Harvested Ccr From Impoundments, William Fedorka, P.E.
Six Years Of Service, Supply, And Success: Processing Harvested Ccr From Impoundments, William Fedorka, P.E.
World of Coal Ash Proceedings
No abstract provided.
Ailbot: A Respiratory-Focused Symptom Checker Chatbot For Children, Gabrielle Mae V. Arco, Ken Ivan T. Cheng, Pamela S. Chong, Chico Andre G. Olaguer
Ailbot: A Respiratory-Focused Symptom Checker Chatbot For Children, Gabrielle Mae V. Arco, Ken Ivan T. Cheng, Pamela S. Chong, Chico Andre G. Olaguer
DLSU Senior High School Research Congress
Inadequate access to healthcare, accompanied by the spread of COVID-19 has significantly affected most Filipinos. The prolonged quarantine period in the Philippines due to this virus restricts the movement and lifestyle of people. Thus, it makes medical appointments difficult to arrange. The ever-growing number of healthcare chatbots can provide access to healthcare check-ups quickly. These systems are still in their infancy stages, with the majority focusing on the mental and emotional well-being of people and catering to the general public. This study aims to develop a chatbot geared toward the respiratory health of Filipino children. Through the use of Chatfuel, …
An Analysis On The Usability Of A Mental Health Assessment Chatbot For Teenagers, Amanda Maria R. Sablay, Fiona Amaia M. Tano, Jazmin Abigail R. Zulueta
An Analysis On The Usability Of A Mental Health Assessment Chatbot For Teenagers, Amanda Maria R. Sablay, Fiona Amaia M. Tano, Jazmin Abigail R. Zulueta
DLSU Senior High School Research Congress
Globally, people are faced with barriers to mental intervention due to a lack of resources, especially in low-income countries. Mental health chatbots have gained popularity due to their accessibility. However, the usability of a mental health chatbot designed to assess the mental well-being of Filipino teenagers is yet to be quantified. This paper aims to determine the acceptance of Filipino teenagers towards a chatbot as a medium to assess their mental well-being. This study presents a design for a conversation flow based on the Pediatric Symptom Checklist to create a text-based chatbot application verified by end-users and a psychologist. From …
Revealing Quality Of Supportive Healing Environments In Interior Design: Recovered Covid-19 Patients’ Level Of Satisfaction In Isolation Facility Design, Hera Marie T. Barena, Carlo Emmanuel S. Dioquino, Mariel C. Remada
Revealing Quality Of Supportive Healing Environments In Interior Design: Recovered Covid-19 Patients’ Level Of Satisfaction In Isolation Facility Design, Hera Marie T. Barena, Carlo Emmanuel S. Dioquino, Mariel C. Remada
DLSU Senior High School Research Congress
A supportive healing environment is defined as a nurturing and therapeutic setting (Sakallaris et al., 2015). This study aimed to determine the quality of supportive healing environments in the interior design of isolation facilities based on the level of satisfaction of recovered COVID-19 patients. The following objectives guided the study; to determine the quality of supportive healing environments in the interior design of isolation facilities in terms of stimulating design features, complexity and coherence, social support enhancement, and connection to nature. Also, it aimed to determine if there is a significant difference in the quality of supportive healing environments in …
Scandy: Simulating Realistic Human Scanpaths In Dynamic Real-World Scenes, Nicolas Roth, Martin Rolfs, Klaus Obermayer
Scandy: Simulating Realistic Human Scanpaths In Dynamic Real-World Scenes, Nicolas Roth, Martin Rolfs, Klaus Obermayer
MODVIS Workshop
No abstract provided.
Aerodynamic Effects Of Phase Offset Between Synchronized Propellers In Hover, Nathan Welker, Daniel Maynes
Aerodynamic Effects Of Phase Offset Between Synchronized Propellers In Hover, Nathan Welker, Daniel Maynes
Utah Space Grant Consortium
Emerging advances in electric-propulsion technology are enabling aircraft to use distributed electric propulsion (DEP) to increase efficiency and maneuverability. The implementation of DEP effectively decreases the spacing between propellers, introducing complex aerodynamic interactions that are not well understood. This study presents the use of stereoscopic particle image velocimetry (SPIV) to obtain 3D velocity measurements of the flow fields of phase locked and synchronized propellers at close proximity in a side-by-side configuration. These experiments were performed to explore the aerodynamic effect of phase offset between the propellers. It was found that while the propeller interactions cause an induced upwash and a …
Internal Wave Generation By Multiple Peak Topographies, Natsha Wilson, Julie Crockett
Internal Wave Generation By Multiple Peak Topographies, Natsha Wilson, Julie Crockett
Utah Space Grant Consortium
Internal waves are generated in the oceans and atmosphere and play an important role in their energy budgets. The semidiurnal oscillation of the tides over topography in the oceans combined with the density stratification can create internal waves that radiate away from their source. The effect of multiple peaks on a single topography has on internal wave generation is explored. Initial results begin to show that multiple ridges create two parallel IW beams with smaller IWs between them compared to the single beam created by a one ridge topography. Kinetic energy is also tightly clustered at lower wavenumbers in Fourier …
Refill Friction Stir Spot Welding As An Alternative Jointing Method For Wing Spar Structures, Paul Blackhurst, Yuri Hovanski, Andrew Curtis
Refill Friction Stir Spot Welding As An Alternative Jointing Method For Wing Spar Structures, Paul Blackhurst, Yuri Hovanski, Andrew Curtis
Utah Space Grant Consortium
Refill Friction Stir Spot Welding (RFSSW) is an emerging solid state joining process for thin sheet aluminum. Many researchers are developing RFSSW process parameters, thus enabling the use of RFSSW in many industries. Some work within this development has been on the application of RFSSW to wing spar stringer and skin joining. This is thanks to the RFSSW process being capable of welding the high-strength aluminum alloys used for wing spar construction. Traditionally wing spar joining has been achieved using rivets. This newer method has the potential to improve the strength, reduce the weight, and lower the cost of wing …
Acoustic Analysis Of The Delta Iv Heavy Launch Vehicle, Griffin Houston, Grant W. Hart, Kent L. Gee
Acoustic Analysis Of The Delta Iv Heavy Launch Vehicle, Griffin Houston, Grant W. Hart, Kent L. Gee
Utah Space Grant Consortium
The Delta IV Heavy is an orbital heavy class launch vehicle that has been in operation since 2004. In this study, the overall sound power level and other acoustic properties of the Delta IV Heavy launch vehicle will be calculated and analyzed. Five data acquisition systems with a wide frequency bandwidth were placed in a far-field arc around a 2021 launch. Using a weighted mean to compare results across stations, a maximum overall sound pressure level (OASPL) of 140 dB and an average maximum polar directivity angle of 69 deg were calculated. An overall sound power level of 198 dB …
Development Of Optical Systems For In-Situ Measurements Of High-Temperature Combustion Plumes, Cara Frischkorn, Stephen A. Whitmore
Development Of Optical Systems For In-Situ Measurements Of High-Temperature Combustion Plumes, Cara Frischkorn, Stephen A. Whitmore
Utah Space Grant Consortium
Results from proof-of-concept tests using fiber-optic cables inserted into the combustion port of a lab-scale hybrid rocket system are reported. The fiber optic cables transmit optical signals to miniature spectrometers and allow in-situ optical characterization of the combustion plume properties including flame temperature and combustion plume species. Multiple firings with burn durations varying from 5 to 25 seconds were performed. The fiber optic sensors survived all tests and resulting rocket performance data were correlated with in-situ optical spectra data. When the optical measurements were adjusted to account for the spectrometer transfer function and the resulting spectra were curve-fit to Planck's …
Ionosphere/Thermosphere Dynamics Obtained From Cosmic Satellite Observations, Layne Pedersen, Ludger Scherliess
Ionosphere/Thermosphere Dynamics Obtained From Cosmic Satellite Observations, Layne Pedersen, Ludger Scherliess
Utah Space Grant Consortium
The morphology and climatology of thermospheric neutral winds play an important role in ionospheric and thermospheric dynamics. Thermospheric neutral winds effect temporal and spatial variations of ionospheric plasma which plays an important role F-region dynamics. However, direct observations of thermospheric neutral winds are historically limited both temporally and spatially [1]. For example, interferometric methods for measuring thermospheric winds are restricted to nighttime observations and cloudless conditions and are limited to relatively few locations. Space-based observations made by cross-track measurements from accelerometers as well as onboard interferometers and spectrometers provide valuable information of thermospheric winds but coverage is inconsistent over a …