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Articles 1 - 30 of 30
Full-Text Articles in Engineering
Heterogeneous Fracture Mechanics Representations Of The Effects Of Defects From Manufacturing To End Of Life, Vamsee Vadlamudi, Kenneth Reifsnider, Rassel Raihan, Fazle Rabbi
Heterogeneous Fracture Mechanics Representations Of The Effects Of Defects From Manufacturing To End Of Life, Vamsee Vadlamudi, Kenneth Reifsnider, Rassel Raihan, Fazle Rabbi
Institute of Predictive Performance Methodologies (IPPM-UTARI)
Composite materials are essential for many modern applications, including airplanes and cars, energy conversion and storage devices, medical prosthetics, and civil structures. The strength and life of such materials are determined by a complex sequence of progressive nucleation, accumulation, and coalescence of micro-damage that is always related to the micro-morphology of the constituents and their properties. Although detecting and modeling all of the discrete events in that sequence is quite difficult, and in some cases not feasible, it would be very useful to identify observable parameters that indicate the onset of different stages of damage development so that remaining strength …
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 10 - Play 3 - 2016/06/15), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 1/2 - Play 3 - 2016/06/12), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 1 - Play 2 - 2016/06/07), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 1/3 - Play 1 - 2016/06/08), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 10 - Play 2 - 2016/06/14), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 1/3 - Play 2 - 2016/06/08), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 10 - Play 1 - 2016/06/10), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 1/2 - Play 3 - 2016/06/12), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 1 - Play 1 - 2016/06/07), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 12 - Play 2 - 2016/06/15), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment. To observe the difference in the assimilation of both isotopes of Carbon Dioxide.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 12 - Play 3 - 2016/06/16), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment. To observe the difference in the assimilation of both isotopes of Carbon Dioxide.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 11 - Play 2 - 2016/06/15), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment. To observe the difference in the assimilation of both isotopes of Carbon Dioxide.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 16 - Play 1 - 2016/06/20), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment. To observe the difference in the assimilation of both isotopes of Carbon Dioxide.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 11 - Play 1 - 2016/06/15), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment. To observe the difference in the assimilation of both isotopes of Carbon Dioxide.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 10/11 - Play 4 - 2016/06/21), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 10/11 - Play 4 - 2016/06/21), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 12 - Play 1 - 2016/06/15), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment. To observe the difference in the assimilation of both isotopes of Carbon Dioxide.
University Of New Mexico Bioalgal Energy, Photosynthesis Rates Of Poplar Plants - Measurements With Tdl Machine (Enriched Co2 - Enriched-Exposed - Tray 16 - Play 2 - 2016/06/20), David Hanson
Energize New Mexico (NSF EPSCoR Track 1 IV)
Collect the photosynthetic rate of poplar plants under different isotopic compositions of CO2 with the TDL machine and with the Licor equipment. To observe the difference in the assimilation of both isotopes of Carbon Dioxide.
Utilizing Electroencephalography Measurements For Comparison Of Task-Specific Neural Efficiencies: Spatial Intelligence Tasks, Benjamin J. Call, Wade Goodridge, Idalis Villanueva, Nicholas Wan, Kerry Jordan
Utilizing Electroencephalography Measurements For Comparison Of Task-Specific Neural Efficiencies: Spatial Intelligence Tasks, Benjamin J. Call, Wade Goodridge, Idalis Villanueva, Nicholas Wan, Kerry Jordan
Engineering Education Faculty Publications
Spatial intelligence is often linked to success in engineering education and engineering professions. The use of electroencephalography enables comparative calculation of individuals' neural efficiency as they perform successive tasks requiring spatial ability to derive solutions Neural efficiency here is defined as having less beta activation, and therefore expending fewer neural resources, to perform a task in comparison to other groups or other tasks. For inter-task comparisons of tasks with similar durations, these measurements may enable a comparison of task type difficulty. For intra-participant and inter-participant comparisons, these measurements provide potential insight into the participant's level of spatial ability and different …
Ag Nanoparticles Generated Using Bio-Reduction And –Coating Cause Microbial Killing Without Cell Lysis, Gade A. Adams, Joan E. Mclean, J. Adams, D. W. Britt, Fenann Shen, A. Jacobson, Y. C. Kim
Ag Nanoparticles Generated Using Bio-Reduction And –Coating Cause Microbial Killing Without Cell Lysis, Gade A. Adams, Joan E. Mclean, J. Adams, D. W. Britt, Fenann Shen, A. Jacobson, Y. C. Kim
Civil and Environmental Engineering Faculty Publications
Cost-effective “green” methods of producing Ag nanoparticles (NPs) are being examined because of the potential of these NPs as antimicrobials. Ag NPs were generated from Ag ions using extracellular metabolites from a soil-borne Pythium species. The NPs were variable in size, but had one dimension less than 50 nm and were biocoated; aggregation and coating changed with acetone precipitation. They had dose-dependent lethal effects on a soil pseudomonad, Pseudomonas chlororaphis O6, and were about 30-fold more effective than Ag+ ions. A role of reactive oxygen species in cell death was demonstrated by use of fluorescent dyes responsive to superoxide anion …
Differences In Nutrient And Metal Uptake Among Plant Species In Stormwater Bioretention Systems., M. R. Borecki, Ryan Dupont, Joan E. Mclean
Differences In Nutrient And Metal Uptake Among Plant Species In Stormwater Bioretention Systems., M. R. Borecki, Ryan Dupont, Joan E. Mclean
Civil and Environmental Engineering Faculty Publications
No abstract provided.
Use Of Galvanic Skin Responses, Salivary Biomarkers, And Self-Reports To Assess Undergraduate Student Performance During A Laboratory Exam Activity, Idalis Villanueva, Maria Valladares, Wade H. Goodridge
Use Of Galvanic Skin Responses, Salivary Biomarkers, And Self-Reports To Assess Undergraduate Student Performance During A Laboratory Exam Activity, Idalis Villanueva, Maria Valladares, Wade H. Goodridge
Engineering Education Faculty Publications
Typically, self-reports are used in educational research to assess student response and performance to a classroom activity. Yet, addition of biological and physiological measures such as salivary biomarkers and galvanic skin responses are rarely included, limiting the wealth of information that can be obtained to better understand student performance. A laboratory protocol to study undergraduate students' responses to classroom events (e.g., exams) is presented. Participants were asked to complete a representative exam for their degree. Before and after the laboratory exam session, students completed an academic achievement emotions self-report and an interview that paralleled these questions when participants wore a …
Bioenergy From Wastewater-Based Biomass, Ronald C. Sims, Sean K. Bedingfield, Reese Thompson, Judith L. Sims
Bioenergy From Wastewater-Based Biomass, Ronald C. Sims, Sean K. Bedingfield, Reese Thompson, Judith L. Sims
Biological Engineering Faculty Publications
The U.S. Department of Energy (DOE) has stated that biomass is the only renewable resource that can supplant petroleum-based liquid transportation fuels in the near term. Wastewater is beginning to be viewed as a potential resource that can be exploited for biomass production and conversion to bioenergy. We suggest that using wastewater from municipalities and industries as a resource for cultivating biomass and combining wastewater treatment with the production of biomass for bioenergy would provide benefits to both industries. Two waste-based biomass production systems that currently have large nationwide infrastructures include: (1) wastewater treatment systems that can be used to …
Python Examples For Multiobjective Data Visualization, J. Herman
Python Examples For Multiobjective Data Visualization, J. Herman
All ECSTATIC Materials
Example data file and code to plot N-dimensional scatter plot, parallel axis plot, and a matrix of 2-dimensional scatter plots.
A Research Experiences For Undergraduates (Reu) Site Program On Engineering Education Research, Ning Fang, Oenardi Lawanto, Wade H. Goodridge, Idalis Villanueva, Kurt Becker
A Research Experiences For Undergraduates (Reu) Site Program On Engineering Education Research, Ning Fang, Oenardi Lawanto, Wade H. Goodridge, Idalis Villanueva, Kurt Becker
Engineering Education Faculty Publications
This paper describes a U.S. National Science Foundation-funded Research Experiences for Undergraduates (REU) Site program that aims to provide undergraduate students with experiences in engineering education research (i.e., education research in the context of engineering). This paper provides an overview of the program and briefly describes the common intellectual focus of this REU Site program. Over the past two years, a total of 16 undergraduate students, seven graduate mentors, and five faculty mentors have actively participated in the program. Four important components of the program are described in this paper, including student recruitment and selection, REU seminars, weekly reflections, and …
Experimental Validation Data For Cfd Of Forced Convection On A Vertical Flat Plate, Jeff R. Harris, Blake W. Lance, Barton L. Smith
Experimental Validation Data For Cfd Of Forced Convection On A Vertical Flat Plate, Jeff R. Harris, Blake W. Lance, Barton L. Smith
Mechanical and Aerospace Engineering Faculty Publications
A CFD validation data set for turbulent forced convection on a vertical plate is presented. The design of the apparatus is based on recent validation literature and provides a means to simultaneously measure boundary conditions and system response quantities. All important inflow quantities for RANS CFD are also measured. Data are acquired at two heating conditions and cover the range 40;000 < Rex < 300;000, 357 < Red2 < 813 and 0:02 < Gr/Re2 < 0:232. The data and uncertainties are contained in files in the supplemental material
A 38 Ghz On-Chip Antenna In 28-Nm Cmos Using Artificial Magnetic Conductor For 5g Wireless Systems, Max Ammann
A 38 Ghz On-Chip Antenna In 28-Nm Cmos Using Artificial Magnetic Conductor For 5g Wireless Systems, Max Ammann
Conference papers
This paper presents the first-ever millimeter wave on-chip antenna (AoC) in 28 nm CMOS technology. The addition of artificial magnetic conductor (AMC) can increase the antenna's power gain and radiation efficiency to -1.75 dBi and 22%, respectively, with an occupied area of 0.95 mm×4.75 mm at 38 GHz. This structure is intended for fully integrated single-chip nanometer CMOS transceivers for 5G communication systems.
Performance And Strength Prediction Of Composite Materials Based On Dielectric Property Investigation, Rassel Raihan, Vamsee Vadlamudi, Fazle Rabbi, Kenneth Reifsnider
Performance And Strength Prediction Of Composite Materials Based On Dielectric Property Investigation, Rassel Raihan, Vamsee Vadlamudi, Fazle Rabbi, Kenneth Reifsnider
Institute of Predictive Performance Methodologies (IPPM-UTARI)
Composite materials have significant advantages over more traditional materials and now these material systems are widely used in many advance application, i.e., aerospace, microelectronics, energy storage. In the last few decades, researchers have been doing extensive research on the prediction of the performance and durability of these complex materials systems. The present paper discusses the relationship between the mechanical properties and their characteristics, especially the strength, life, and durability of composite materials and their dielectric response. Essentially all Composite materials are heterogeneous dielectric material systems, i.e., their response to a time-variable electric field is not linear, and is generally dependent …
Dielectric Assessment Of Composite Damage States, Vamsee Vadlamudi, Rassel Raihan, Kenneth Reifsnider
Dielectric Assessment Of Composite Damage States, Vamsee Vadlamudi, Rassel Raihan, Kenneth Reifsnider
Institute of Predictive Performance Methodologies (IPPM-UTARI)
The long-term properties of continuous fiber reinforced composite materials are increasingly important as applications in airplanes, cars, and other safety critical structures are growing rapidly. Performance of composite materials is altered by the initiation, accumulation, and interaction of discrete micro-fracture events. Detecting eventual damage growth and predicting the onset of component failure is a challenging task. While a strong foundation of understanding has been established for damage initiation and accumulation during the life of composite materials and structures, an understanding of the nature and details that define fracture path development at the end of life has not been established. In …