Heat Transfer Vest, 2018 Central Washington University
Heat Transfer Vest, Nicholas Forsgaard
All Undergraduate Projects
The purpose of this report is to document the progression of the authors senior project. . The of that project was the research of Liquid Cooled Garment (LCG) technology, the generation of a novel LCG prototype and the testing of that prototype relative to a commercial benchmark. As such, this report is a complete narrative of the of these tasks, their execution and the underlying assumptions and commentary. The motivation for this report is to satisfy the capstone requirements of the MET program at CWU by documenting the Senior Project and its subordinate tasks. First, the student designed a LCG system ...
Strong Stability Of A Class Of Difference Equations Of Continuous Time And Structured Singular Value Problem, 2018 Nanjing University of Science and Technology
Strong Stability Of A Class Of Difference Equations Of Continuous Time And Structured Singular Value Problem, Qian Ma, Keqin Gu, Narges Choubedar
SIUE Faculty Research, Scholarship, and Creative Activity
This article studies the strong stability of scalar difference equations of continuous time in which the delays are sums of a number of independent parameters tau_i, i = 1, 2, . . . ,K. The characteristic quasipolynomial of such an equation is a multilinear function of exp(-tau_i s). It is known that the characteristic quasipolynomial of any difference equation set in the form of one-delayper- scalar-channel (ODPSC) model is also in such a multilinear form. However, it is shown in this article that some multilinear forms of quasipolynomials are not characteristic quasipolynomials of any ODPSC difference equation set. The equivalence between local strong ...
Trading Off Sound Pressure Level And Average Power Production For Wind Farm Layout Optimization, 2017 Brigham Young University
Trading Off Sound Pressure Level And Average Power Production For Wind Farm Layout Optimization, Eric Tingey, Andrew Ning
All Faculty Publications
This research explores the trade-offs between a wind farm’s average power production and noise impact on nearby observers. Two specific wind farm designs were studied and optimized using the FLORIS wake model and an acoustic model based on semi-empirical turbine noise calculations. It was found in the two wind farms that the average power production could be increased, up to 8.01% in one and 3.63% in the other, ignoring sound level considerations. Including a noise restriction in the optimization had a minimal impact on the optimal average power production within about a five-decibel range. Past this range ...
Development, Energy, And Climate Change Policy: Enabling Sustainable Development Through Access To Energy, 2017 University of Dayton
Development, Energy, And Climate Change Policy: Enabling Sustainable Development Through Access To Energy, Robert J. Brecha
The Social Practice of Human Rights: Charting the Frontiers of Research and Advocacy
Human rights, human development, and climate change clearly overlap in many ways. Development, as quantified by the Human Development Index (HDI), for example, has historically been strongly correlated with energy consumption. This fact is recognized in Sustainable Development Goal (SDG) 7, to “ensure access to affordable, reliable, sustainable and modern energy for all.” Currently the world is in the midst of a large wave of human migration, much of it involuntary and due to stymied development opportunities as well as political upheaval. Climate change will become, or already is, an exacerbating factor in migration dynamics.
A pertinent question is how ...
Answering Food Insecurity: Serving The Community With Food And Knowledge Using Technology, 2017 Purdue University
Answering Food Insecurity: Serving The Community With Food And Knowledge Using Technology, Courtney Simpson
Purdue Journal of Service-Learning and International Engagement
The courses of Tech120, CGT110, and ENGT 180/181 and Red Gold at Purdue collaborated to design a robot that would plant and water a garden for a local community charter school. The students centered the project on the users’ needs for fresh food, nutrition education, and early exposure to STEM for children. The school, Anderson Preparatory Academy (APA), is comprised of many children who come from low-income families and are in the free or reduced lunch program. Inspired from “Farm Bot,” a similar system that allows for almost hands-free gardening, the “Boiler Bot” is designed to be scalable so ...
Numerical Simulations Of Two-Phase Flows In The Liquid Solid Circulating Fluidized Bed, 2017 The University of Western Ontario
Numerical Simulations Of Two-Phase Flows In The Liquid Solid Circulating Fluidized Bed, Hao Luo
Electronic Thesis and Dissertation Repository
The liquid-solid circulating fluidized bed (LSCFB) has many potential applications in biochemical and petroleum industries, as well as in wastewater treatments, given its higher contact efficiency and being able to accommodate two reactions under one system. With extensive experimental results becoming available, there is clearly a need for computational fluid dynamics (CFD) modeling to expand our understandings of LSCFBs and to predict the hydrodynamic behaviors of the two-phase flows within LSCFB.
In this research, the Eulerian-Eulerian two-phase model combined with the kinetic theory for the granular phase is applied to simulate the two-phase flows in LSCFBs. The key factors affecting ...
The Challenges Of Building Intelligent Tutoring Systems For Teams, 2017 Iowa State University
The Challenges Of Building Intelligent Tutoring Systems For Teams, Desmond Bonner, Stephen B. Gilbert, Michael C. Dorneich, Eliot Winer, Anne M. Sinatra, Anna Slavina, Anastacia Macallister, Joseph Holub
Intelligent Tutoring Systems have been useful for individual instruction and training, but have not been widely created for teams, despite the widespread use of team training and learning in groups. This paper reviews two projects that developed team tutors: the Team Multiple Errands Task (TMET) and the Recon Task developed using the Generalized Intelligent Framework for Tutoring (GIFT). Specifically, this paper 1) analyzes why team tasks have significantly more complexity than an individual task, 2) describes the two team-based platforms for team research, and 3) explores the complexities of team tutor authoring. Results include a recommended process for authoring a ...
Nonlinear Ultrasounic Resonance Spectroscopy Of Intact Carbon Fiber/Epoxy Composites, 2017 Iowa State University
Nonlinear Ultrasounic Resonance Spectroscopy Of Intact Carbon Fiber/Epoxy Composites, Sunil Kishore Chakrapani, Daniel J. Barnard, Vinay Dayal
The present study reports the influence of fiber orientation, laminate sequence and fabric type on the inherent nonlinearity of intact carbon fiber/epoxy composites using nonlinear resonant ultrasonic spectroscopy (NRUS) [1-2]. Fiber orientation of the CFRP samples were changed relative to the length of the sample. Since the fundamental flexural mode is excited, the properties of the composite along the length of the sample would influence the nonlinear response . Two hypothesis were developed using the orientation results and theory of interlaminar stress. Additionally four different laminate sequences were also tested to study the influence of laminate sequence on the ...
Detection Of 4-Point Bend Induced Micro-Cracks In Cfrp Laminates Via Coda Wave Nde, 2017 Iowa State University
Detection Of 4-Point Bend Induced Micro-Cracks In Cfrp Laminates Via Coda Wave Nde, Richard Livings, Dan Barnard, Vinay Dayal
Although coda wave NDE has been shown to have some sensitivity to realistic damage in concrete structures, the technique’s capability for detecting micro-cracks in fibrous composite materials has yet to be evaluated. This paper reports on the first investigation of realistic damage, specifically micro-cracks, in fibrous composite materials using coda wave differential signal features. Micro-cracks were generated in CFRP samples using the 4-point bending configuration shown in Fig. 1. The damage was monitored during loading with Acoustic Emission, and the loading was stopped after each significant damage event. The damage was then examined with coda wave NDE, immersion UT ...
The Onset Of Convection In Rarefied Gases, 2017 The University of Western Ontario
The Onset Of Convection In Rarefied Gases, Md Asif Zobaer
Electronic Thesis and Dissertation Repository
The onset of convection in the Rayleigh-Bénard problem for a monatomic rarefied gas at small Knudsen number has been investigated. Compressibility-induced density variations have been considered without imposing any restriction on the magnitude of temperature difference. A linear temporal stability analysis has been conducted for a compressible slip-flow model considering a Maxwellian gas and the dispersion relation is calculated using a Chebyshev collocation method. A neutral stability curve obtained in the Froude-Knudsen number plane marks transition to convection from a pure conduction state. The critical wave number observed for the onset of convection is in good agreement with the existing ...
The Effect Of Cladding Creep On The Initiation Of Gtrfw, 2017 Selected Works
The Effect Of Cladding Creep On The Initiation Of Gtrfw, William Campbell
Evaluation Of Heat Available From Calcium Chloride Desiccant Hydration Reaction For Domestic Heating In San Francisco, Ca, Michael Giglio
Mechanical Engineering Master's Theses
Thermochemical energy storage has the potential to support the use of solar thermal energy collection in ways that traditional thermal energy storage, like sensible and latent heat storage, have fallen short. Thermochemical energy storage has been shown to have higher storage capacities than sensible and latent storage for dehumidifying applications and does not require insulation like sensible and latent heating do. Sensible heating is focused on maintaining an increased temperature of a storage medium while latent heat storage is focused on maintaining a phase of the storage material. Both sensible and latent heat storage have been shown to have lower ...
Deep Visual Gravity Vector Detection For Unmanned Aircraft Attitude Estimation, 2017 Department of Mechanical Engineering, Brigham Young University
Deep Visual Gravity Vector Detection For Unmanned Aircraft Attitude Estimation, Gary J. Ellingson, David Wingate, Tim Mclain
All Faculty Publications
This paper demonstrates a feasible method for using a deep neural network as a sensor to estimate the attitude of a flying vehicle using only flight video. A dataset of still images and associated gravity vectors was collected and used to perform supervised learning. The network builds on a previously trained network and was trained to be able to approximate the attitude of the camera with an average error of about 8 degrees. Flight test video was recorded and processed with a relatively simple visual odometry method. The aircraft attitude is then estimated with the visual odometry as the state ...
Coupling Dynamic Vehicle-Track Interaction Over Coupled Short And Long Wavelength Rail Defects, 2017 University of Birmingham
Coupling Dynamic Vehicle-Track Interaction Over Coupled Short And Long Wavelength Rail Defects, Chatpong Chiengson, Sakdirat Kaewunruen, Akira Aikawa
Cfd Simulation Of Passenger Hazard Risk At Railway Station Platforms Due To Explosive Air Blasts, 2017 University of Birmingham
Cfd Simulation Of Passenger Hazard Risk At Railway Station Platforms Due To Explosive Air Blasts, Vivian Lawrence, Sakdirat Kaewunruen, Gianni Bartoli, Charalampos Baniotopoulos
Augmented Approaches To Engineering, 2017 Missouri University of Science and Technology
Augmented Approaches To Engineering, Matthew Gary Booth
S&T’s Peer to Peer
This paper presents the results of research into the integration and application of augmented reality (AR) and virtual reality (VR) systems into the fields of engineering and engineering education. The research discusses the current iterations of these systems, and the programs that are being developed to run on them. Also being discussed is the potential benefits that implementing these systems can give to engineering education by improving spatial skills for use in engineering education and engineering design. This paper also touches on the current state of the AR and VR markets, and their current focus on entertainment based consumer electronics ...
An Analysis Of The Environmental Impact Of Electric Vehicles, 2017 Missouri University of Science and Technology
An Analysis Of The Environmental Impact Of Electric Vehicles, Ashley Schmid
S&T’s Peer to Peer
Electric cars have the reputation as a possible solution to many modern environmental and economic issues. Electric motors have been an interest of many inventors since the 1830s, but fully electric vehicles were not prevalent until 2008 when Tesla Motors released the Roadster. The looming energy crisis is one of the main motivations for the advancement in renewable and alternative fuel technologies, but since the early 60s, it has been the environmental lobby that has been pushing for this change. The environment suffers from industrialized nations as the amount of greenhouse gas emissions reach new heights every year. Filtration systems ...
Software For Extracting Deformation Gradient And Stress From Md Simulations: Simulations Using The Charmm Force Field, 2017 University of Nebraska - Lincoln
Software For Extracting Deformation Gradient And Stress From Md Simulations: Simulations Using The Charmm Force Field, Mehrdad Negahban, Lili Zhang, Zesheng Zhang, John Jasa, Antoine Jérusalem
Mechanical & Materials Engineering Faculty Publications
Software was developed, and is provided under a general use license, to calculate continuum level deformation gradient and stress for any group of atoms in an MD simulation that uses the Charmm force fields. This software can also calculate the interaction stress applied by one group of atoms on any other group. To obtain deformation gradient and stress, the user needs to provide the selected group(s) of atoms in an atom group identification file, and provide the associated LAMMPS format files and force field parameter file. An example is included to demonstrate the use of the software.
Guide To The Richard C. Heyser Collection, 2017 Columbia College Chicago
Guide To The Richard C. Heyser Collection, College Archives & Special Collections
This guide describes the organization and scope of the Richard C. Heyser archival collection, housed within the College Archives & Special Collections at Columbia College Chicago. Richard C. Heyser (1931-1987) was a pioneer in research relating to audio and acoustic measurement techniques.
Additive Manufacturing Process Of 3d Polyaniline Transducers Via Direct Ink Writing, 2017 The University of Western Ontario
Additive Manufacturing Process Of 3d Polyaniline Transducers Via Direct Ink Writing, Frederick Benjamin Holness
Electronic Thesis and Dissertation Repository
Electroactive polymers exhibit a change in properties, typically size or shape, in response to electrical stimuli. One class of electroactive polymer of particular interest are the conjugated polymers, whose conjugated backbone structure imparts electrical conductivity. However, this structure imposes processing limitations restricting their form to 2D structures. To overcome this, we develop specially formulated polyaniline- based blends via counter-ion induced thermal doping for the fabrication of 3D conductive structures via direct ink writing. This approach employs multi-material extrusion for the production of structures with passive and active features, rapid device fabrication, and improved design freedom. A model of the thermal ...