Engineering Commons^™

Machine Learning Prediction Of Photoluminescence In Mos2: Challenges In Data Acquisition And A Solution Via Improved Crystal Synthesis, Ethan Swonger, John Mann, Jared Horstmann, Daniel Yang

Seaver College Research And Scholarly Achievement Symposium

Transition metal dichalcogenides (TMDCs) like molybdenum disulfide (MoS2) possess unique electronic and optical properties, making them promising materials for nanotechnology. Photoluminescence (PL) is a key indicator of MoS2 crystal quality. This study aimed to develop a machine-learning model capable of predicting the peak PL wavelength of single MoS2 crystals based on micrograph analysis. Our limited ability to consistently synthesize high-quality MoS2 crystals hampered our ability to create a large set of training data. The project focus shifted towards improving MoS2 crystal synthesis to generate improved training data. We implemented a novel approach utilizing low-pressure chemical vapor deposition (LPCVD) combined with …

The Living Breakwaters Pdr Efforts Econcrete Resource Analysis, Guianina Ferrari, Shervon Stephens, Calvin O. Walters Jr.

Publications and Research

On October 29, 2012, Superstorm Sandy impacted 443,000 people and caused nearly $19 billion (about $58 per person in the US) worth of damage within New York City. As part of the New York City infrastructure reparation plan, the Living Breakwaters project in Tottenville addressed coastal resilience, allocating $100M of public funds to a series of artificial breakwaters by the southwest coast of Staten Island. Each breakwater is constructed and designed to mitigate water flow in storm events. ECOncrete, a primary element of the breakwater, is a specialty cast cementitious product that is marine organism-friendly that encourages biocalcification and photosynthesis. …

The Living Breakwaters Pdr Efforts: Conceptual Scheduling, Calvin O. Walters Jr.

Publications and Research

On October 29, 2012, Superstorm Sandy caused nearly $19 billion in damages in New York City including 69,000 residential units across the five boroughs. This disaster precipitated a post-disaster-rebuilding (PDR) project including roughly $4.2 billion in a Community Development Block Grant allocated towards PDR projects. A portion of the grant was used to construct a living breakwater in Tottenville, Staten Island, consisting of a resiliency approach to risk reduction through erosion prevention, wave energy attenuation, and enhancement of ecosystems and social resiliency to improve resistance to storms for the community of Tottenville. The ridges of each breakwater are designed with …

The Effects Of Hydrogen Diffusion In Zirconium Alloys, Ruhi R. Celik

Undergraduate Student Research Internships Conference

This research poster gives an overview of hydride formation in zirconium alloys

Angle-Iron Feed Measuring Device, Jason Robertson, Alex Welling, Jacob Burns

Scholar Week 2016 - present

Steel and iron are the building blocks with which we construct our world. From buildings to machines to transportation the use of these materials can be found in all aspects of life. In their crude form they do not have much use, so manufacturers standardize various shapes and sizes to create usable resources. These include bars, rods, beams, sheet, and angle iron. The team made up of three engineering students Jake Burns, Jason Robertson, and Alex Welling is working with a company called Peddinghaus. Peddinghaus produces equipment and machines to process steel and iron in their standard forms, such as …

Impact Of Chain Architecture On The Thickness Dependence Of Physical Aging Rate Of Thin Polystyrene Films, Gregory Brown, Elizabeth Lewis, Bryan D. Vogt

Williams Honors College, Honors Research Projects

The dynamics of polymer thin films have been demonstrated to be significantly altered from the bulk, but the origins of such differences are not well defined. In this work, we seek to understand the differences in the structural dynamics (or physical aging) of polystyrene (PS) through branching and other well defined architectures (comb and centipede). The aging dynamics of ultrathin films (< 30 nm) differ from relatively thick films (100-150nm) with linear PS thin films aging more rapidly than the relatively “bulk-like” thick films. Ellipsometric measurements are used to characterize the physical aging rate of the films. The change in film thickness and refractive index as the films are held below the glass transition temperature (T_g) provides a simple measure of the physical aging. In this study, four different architectures (linear, comb, 4 arm star, and centipede) will be investigated. For each PS architecture, the aging rate will be determined for film …

The Effect Of Flinak Molten Salt Corrosion On The Hardness Of Hastelloy N, David Kok

Scholar Week 2016 - present

The Molten Salt Reactor (MSR) has been identified as a promising candidate to replace aging nuclear reactors around the world. However, a suitable combination of molten salt and container material needs to be found in order to reduce the potential for corrosion in the MSR before it can be considered commercially viable. FLiNaK molten salt and the nickel-based alloy Hastelloy N have been identified as prime candidates for this function, but the severity of FLiNaK corrosion in Hastelloy N requires additional study before this combination can be used in the operation of a MSR. In this study, Hastelloy N samples …

Evaluating The Scalability Of Graphene Synthesis, Evan Dexter

Scholar Week 2016 - present

Graphene is a new material, first isolated in 2004, consisting of one to a few atomic layers of carbon in a lattice sheet structure. Graphene has high tensile strength, high surface area, very low electrical resistance, and various other special properties that make it an excellent material for use in emerging technologies in the categories of electrical components, energy systems, and high strength applications. The production scale of graphene sheets and its variations is currently limited to laboratory use, with a great amount of current research going into the development of manufacturing techniques of the material. I conducted experiments to …

Characterization Of Magnetic Thin Films Using The Magneto Optic Kerr Effect, Nicholas J. Savino

Student Scholar Showcase

Understanding magnetic properties of materials allows for advances in applications such as data storage. The Magneto-Optic Kerr Effect (MOKE) displays the reflective response a magnetic material has to a magnetic field. When polarized light reflects off of a magnetic material, the polarization orientation can change. The application of an external magnetic field can affect how much this polarization changes in a non-linear manner. Hysteresis loops are created when examining the relationship between intensity of the reflected light to the applied magnetic field provide information about magnetic properties of that material, such as the coercive field and field retention. Preliminary measurements …

Recovery Of Rare Earths From Florida Phosphogypsum, Patrick Zhang

Beneficiation of Phosphates VII

No abstract provided.

Improving Dolomite Collector Forflorida High-Mg Pebble, Chunhui Feng, Wenyi Song

Beneficiation of Phosphates VII

No abstract provided.

Phosphorus Removal And Recovery From Waste Water By Bio-Processing Followed By Microwave Radiation, Renhua Zhong, Wending Xiao

Beneficiation of Phosphates VII

No abstract provided.

Application Of Classification And Fluidized Bed Flotation At Pcs Aurora, George Piegols, David Deplato, Jaisen Kohmuench, Eric Yan

Beneficiation of Phosphates VII

No abstract provided.

Enhanced Presentation Of Tomographic Data, Carmen Watts Clayton, Bernice E. Mills, George Buffleben, Thien Vu-Nguyen

STAR Program Research Presentations

Solid materials can now be viewed non-destructively with x-rays by tomography; a technique for taking many 2D images of an object at many angles and reconstructing the images into a 3D data cube. The data is next rendered into 2D or 3D still images or movies. By nature, x-ray tomography yields a very large amount of data in three dimensions. Effectively displaying this data to an audience is a challenge.

In this work techniques are explored to improve the presentation methods of movies of both 2D and 3D tomographic data for visual appeal and correct perspective. Finding the optimal ways …

Nondestructive Thickness Measurements On Ebpvd Thermal Barrier Coatings By Using Terahertz Technique, Thomas Cosack, Jens Klier, Joachim Jonuscheit

Thermal Barrier Coatings IV

No abstract provided.

Magnetron Sputtering Of Ni-Ti Thin Film Simulation By Using Embedded Atom Model, Ajit Behera

Ajit Behera

Nickel-Titanium Thinfilm shape memory alloys formed by sputtering have been promising candidates for the realization of powerful actuators in microelectromechanical systems (MEMS) such as micro valves, micro fluid pumps and micromanipulators. In order to increase the actuation response of the microactuator utilizing SMA thin films, it is necessary to study the sputtering process parameter. The present work simulates the movement of Ni and Ti atoms on NiTi film During impingement, revealed re-sputtering, which is manipulated by Classical molecular dynamics simulation.

Simulation Of Phase Transformation Behavior Of Niti Doped With Cu During Loading Using Classical Molecular Dynamics, Ajit Behera

Ajit Behera

No abstract provided.

Ultra-High Temperature Ceramics Research At Afrl, M.K. Cinibulk, T.A. Parthasarathy

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Role Of Composites For Gradual Improvement Of Aircraft Structure, Ajit Behera

Ajit Behera

No abstract provided.

Processing And Characterization Of Plasma Spray Coating By Using Industrial Waste And Low-Grade Ore, Ajit Behera

Ajit Behera

No abstract provided.

Sustainable Development, Jane Qiong Zhang, Linda Vanasupa

Materials Engineering

This document is a set of learning materials to support the teaching of Sustainable Development issues particularly related to sustainability in engineering. It is designed for the general engineering or science audience. Its design is based on the framework of the Fink Taxonomy of Significant Learning. The document is a fully-editable set of slides in open source format (pptx) that includes references to targeted learning objectives on each slide and annotations in the notes section of each slide.

Energy, Jane Qiong Zhang, Linda Vanasupa

Materials Engineering

This document is a set of learning materials to support the teaching of energy issues particularly related to sustainability in engineering. It is designed for the general engineering or science audience. Its design is based on the framework of the Fink Taxonomy of Significant Learning. The document is a fully-editable set of slides in open source format (pptx) that includes references to targeted learning objectives on each slide and annotations in the notes section of each slide.

Systems Thinking, Jane Qiong Zhang, Linda Vanasupa

Materials Engineering

This document is a set of learning materials to support the teaching of systems thinking issues particularly related to sustainability in engineering. It is designed for the general engineering or science audience. Its design is based on the framework of the Fink Taxonomy of Significant Learning. The document is a fully-editable set of slides in open source format (pptx) that includes references to targeted learning objectives on each slide and annotations in the notes section of each slide.

Water, Jane Qiong Zhang, Linda Vanasupa

Materials Engineering

This document is a set of learning materials to support the teaching of water issues particularly related to sustainability in engineering. It is designed for the general engineering or science audience. Its design is based on the framework of the Fink Taxonomy of Significant Learning. The document is a fully-editable set of slides in open source format (pptx) that includes references to targeted learning objectives on each slide and annotations in the notes section of each slide.

Materials, Jane Qiong Zhang, Linda Vanasupa

Materials Engineering

This document is a set of learning materials to support the teaching of materials issues particularly related to sustainability in engineering. It is designed for the general engineering or science audience. Its design is based on the framework of the Fink Taxonomy of Significant Learning. The document is a fully-editable set of slides in open source format (pptx) that includes references to targeted learning objectives on each slide and annotations in the notes section of each slide.

Population, Jane Qiong Zhang, Linda Vanasupa

Materials Engineering

This document is a set of learning materials to support the teaching of population issues particularly related to sustainability in engineering. It is designed for the general engineering or science audience. Its design is based on the framework of the Fink Taxonomy of Significant Learning. The document is a fully-editable set of slides in open source format (pptx) that includes references to targeted learning objectives on each slide and annotations in the notes section of each slide.

Energy, Jane Qiong Zhang, Linda Vanasupa

Linda Vanasupa

This document is a set of learning materials to support the teaching of energy issues particularly related to sustainability in engineering. It is designed for the general engineering or science audience. Its design is based on the framework of the Fink Taxonomy of Significant Learning. The document is a fully-editable set of slides in open source format (pptx) that includes references to targeted learning objectives on each slide and annotations in the notes section of each slide.

Sustainable Development, Jane Qiong Zhang, Linda Vanasupa

Linda Vanasupa

This document is a set of learning materials to support the teaching of Sustainable Development issues particularly related to sustainability in engineering. It is designed for the general engineering or science audience. Its design is based on the framework of the Fink Taxonomy of Significant Learning. The document is a fully-editable set of slides in open source format (pptx) that includes references to targeted learning objectives on each slide and annotations in the notes section of each slide.

Pigments For Improving Plant Health In Organic Systems, Gregory Keith Bartley Jr.

Gregory Keith Bartley Jr.

Photosynthesis, arguably the most important biological process on earth, solely relies on the ability of pigments to capture, utilize, and convert the sun‟s energy to form life. The adequate conversion of light into harvestable food, fuel, and fiber regulates rates of population and economic growth. In order to meet the expanding needs of humanity with the earth‟s potential for agricultural production, new sustainable techniques for increased photosynthetic efficiency in plants must be implemented. The earth's pattern of light exposure is extremely dynamic, exhibiting constant changes in quantity and quality throughout time and space. For photosynthetic organisms, this meant evolving various …

New Trend Of Metal Coating In Aerospace Component, Ajit Behera

Ajit Behera

No abstract provided.