Long-Term Desorption Behavior Of Uranium And Neptunium In Heterogeneous Volcanic Tuff Materials,
2010
University of New Mexico
Long-Term Desorption Behavior Of Uranium And Neptunium In Heterogeneous Volcanic Tuff Materials, Dean Cynthia
Chemical and Biological Engineering ETDs
Uranium and neptunium desorption were studied in long-term laboratory experiments using four well-characterized volcanic tuff cores collected from southeast of Yucca Mountain, Nevada. The objectives of the experiments were to 1. Demonstrate a methodology aimed at characterizing distributions of sorption parameters (attributes of multiple sorption sites) that can be applied to moderately-sorbing species in heterogeneous systems to provide more realistic reactive transport parameters and a more realistic approach to modeling transport in heterogeneous systems. 2. Focus on uranium and neptunium because of their high solubility, relatively weak sorption, and high contributions to predicted dose in Yucca Mountain performance assessments. Also, …
Atomic-Level Investigation Of Surface Processes Governing Sige Wetting Layer Formation Using Stm/Sts,
2010
University of New Mexico
Atomic-Level Investigation Of Surface Processes Governing Sige Wetting Layer Formation Using Stm/Sts, Kyle J. Solis
Chemical and Biological Engineering ETDs
Upon sub-monolayer Ge deposition on the 2xn reconstructed SiGe alloy wetting layer at room temperature, the predominant adspecies observed are so-called addimer chain structures (ADCSs). Polarity-switching scanning tunneling microscopy (STM) is used to study ADCSs, as they only appear in empty-state images. ADCSs are dilute structures comprising type-C addimers that reside in neighboring troughs and extend along all equivalent < 130> directions of the surface, giving rise to a zigzagged morphology. ADCSs exhibit localized movements, wherein their rearrangements are strongly coupled with the structure of the underlying substrate dimers. At elevated temperatures, ADCSs are observed to transition to compact epitaxial segments of …
Bioadhesion To Model Thermally Responsive Surfaces,
2010
University of New Mexico
Bioadhesion To Model Thermally Responsive Surfaces, Brett J. Andrzejewski
Chemical and Biological Engineering ETDs
This dissertation focuses on the characterization of two surfaces: mixed self-assembled monolayers (SAMs) of hexa(ethylene glycol) and alkyl thiolates (mixed SAM) and poly(N-isopropylacrylamide) (PNIPAAm). The synthesis of hexa(ethylene gylcol) alkyl thiol (C11EG6OH) is presented along with the mass spectrometry and nuclear magnetic resonance results. The mixed SAM surface was confirmed to be thermally responsive by contact angle goniometry, 35° at 28 °C and 55° at 40 °C. In addition, the mixed SAM surfaces were confirmed to be thermally responsive for various aqueous mediums by tensiometry. Factors such as oxygen, age, and surface mole fraction and how they affect the thermal …
Results And Analysis Of A Required Senior Exam To Assess Learning Of Course Competencies,
2010
Brigham Young University
Results And Analysis Of A Required Senior Exam To Assess Learning Of Course Competencies, Randy Lewis, Thomas Knotts, W. Vincent Wilding, William G. Pitt, Morris D. Argyle
Faculty Publications
As part of the ABET Accreditation Criterion, Program Outcomes refer to the outcomes that chemical engineering students should possess when they leave the university and enter the workforce. In 1999, as a response to ABET’s EC2000 criterion, a list of specific competencies was defined in the Chemical Engineering Program at Brigham Young University that, when taken together, constituted each Program Outcome. When the competencies were first developed, it became clear that the level of mastery expected from students varied from competency to competency. Exposure to the material was all that was required for some competencies. For others, it was our …
Results And Analysis Of A Required Senior Exam To Assess Learning Of Course Competencies,
2010
Brigham Young University
Results And Analysis Of A Required Senior Exam To Assess Learning Of Course Competencies, Randy Lewis, Thomas Knotts, W Vincent Wilding, William Pitt, Morris Argyle
Faculty Publications
As part of the ABET Accreditation Criterion, Program Outcomes refer to the outcomes that chemical engineering students should possess when they leave the university and enter the workforce. In 1999, as a response to ABET’s EC2000 criterion, a list of specific competencies was defined in the Chemical Engineering Program at Brigham Young University that, when taken together, constituted each Program Outcome. When the competencies were first developed, it became clear that the level of mastery expected from students varied from competency to competency. Exposure to the material was all that was required for some competencies. For others, it was our …
Computer Simulation Of A Biomass Gasification-Solid Oxide Fuel Cell Power System Using Aspen Plus,
2010
Technological University Dublin
Computer Simulation Of A Biomass Gasification-Solid Oxide Fuel Cell Power System Using Aspen Plus, Wayne Doherty, Anthony Reynolds, David Kennedy
Articles
The operation and performance of a solid oxide fuel cell (SOFC) stack on biomass syn-gas from a biomass gasification combined heat and power (CHP) plant is investigated. The objective of this work is to develop a model of a biomass-SOFC system capable of predicting performance under diverse operating conditions. The tubular SOFC technology is selected. The SOFC stack model, equilibrium type based on Gibbs free energy minimisation, is developed using Aspen Plus. The model performs heat and mass balances and considers ohmic, activation and concentration losses for the voltage calculation. The model is validated against data available in the literature …
A Multi-Objective Evaluation Of Pc Plants With Aqueous Amine Carbon Capture Systems,
2010
ORISE/NETL USA
A Multi-Objective Evaluation Of Pc Plants With Aqueous Amine Carbon Capture Systems, John Eslick
CO2 Summit: Technology and Opportunity
No abstract provided.
Lifecycle Energy Modeling - Input Into Upstream Design Process,
2010
Siemens Energy Inc, USA
Lifecycle Energy Modeling - Input Into Upstream Design Process, Prasanth Chandrahasan
CO2 Summit: Technology and Opportunity
No abstract provided.
Towards Sustainable Energy: Tailored Synthesis Of Carbon-Neutral Filler Materials During Carbon Mineral Sequestration,
2010
Columbia University, New York, USA
Towards Sustainable Energy: Tailored Synthesis Of Carbon-Neutral Filler Materials During Carbon Mineral Sequestration, Ah-Hyung Alissa Park
CO2 Summit: Technology and Opportunity
No abstract provided.
Net Energy And Greenhouse Gas Emissions Evaluation Of Biodiesel Derived From Microalgae,
2010
Colorado State University, USA
Net Energy And Greenhouse Gas Emissions Evaluation Of Biodiesel Derived From Microalgae, Liaw Y. Batan
CO2 Summit: Technology and Opportunity
No abstract provided.
Achieving Process Energy Efficiency Via Innovation,
2010
UOP - Honeywell Company, USA
Achieving Process Energy Efficiency Via Innovation, Greg Werba
CO2 Summit: Technology and Opportunity
No abstract provided.
Unblocking Biofuels With Microchannel Technology,
2010
Velocys Inc., USA
Unblocking Biofuels With Microchannel Technology, Jeff Mcdaniel
CO2 Summit: Technology and Opportunity
No abstract provided.
Co2 Summit: Complete Conference Program,
2010
UOP, USA
Co2 Summit: Complete Conference Program, Frank Zhu
CO2 Summit: Technology and Opportunity
Final Conference Program
Solid Fuels Conversion Using The Iron-Based Chemical Looping Process,
2010
Ohio State University
Solid Fuels Conversion Using The Iron-Based Chemical Looping Process, Ray Kim
CO2 Summit: Technology and Opportunity
No abstract provided.
Assessment Of Strategies Proposed To Reduce Co2 Emissions,
2010
Oak Ridge National Laboratory, USA
Assessment Of Strategies Proposed To Reduce Co2 Emissions, Costas Tsouris
CO2 Summit: Technology and Opportunity
No abstract provided.
Low Emissions Coal Technology In Australia,
2010
CSIRO, Australia
Low Emissions Coal Technology In Australia, John Carras
CO2 Summit: Technology and Opportunity
No abstract provided.
Advanced Biofuels: Commercializing The Efficient Syngas-To-Ethanol Platform,
2010
Coskata Inc., USA
Advanced Biofuels: Commercializing The Efficient Syngas-To-Ethanol Platform, Wes Bolsen
CO2 Summit: Technology and Opportunity
No abstract provided.
Toward Sustainable Co2 Capture,
2010
The City College of New York, USA
Toward Sustainable Co2 Capture, Jae W. Lee
CO2 Summit: Technology and Opportunity
No abstract provided.
A Mobile Pyrolyzer For Converting Agricultural And Forestry Residues Into Liquid Bio-Oil And Bio-Char,
2010
ICFAR, University of Western Ontario, Canada
A Mobile Pyrolyzer For Converting Agricultural And Forestry Residues Into Liquid Bio-Oil And Bio-Char, Franco Berruti
CO2 Summit: Technology and Opportunity
No abstract provided.
Co2 Capture & Compression Technologies,
2010
GE, USA
Co2 Capture & Compression Technologies, Brian Wadas
CO2 Summit: Technology and Opportunity
No abstract provided.
