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Articles 1 - 30 of 939
Full-Text Articles in Materials Science and Engineering
Reducing Switching Noise And Losses In Two-Stage Electric Power Converters, Abhijeet Prem
Reducing Switching Noise And Losses In Two-Stage Electric Power Converters, Abhijeet Prem
Student Research Symposium
Advancements in semiconductor devices are enabling the design of better electrical power converter systems. Wide Bandgap (WBG) switching devices from Silicon Carbide and Gallium Nitride can operate at high temperatures, voltages, and frequencies with faster turn-on/off periods, improving converter performance over silicon devices. However, WBG technology is still new, and the rapid switching transitions of these devices lead to issues such as voltage overshoots, ringing, and electromagnetic interference, which need to be addressed for widespread adoption. This work introduces a new control method for reshaping the switching voltages, which overcomes the disadvantages of fast transition time without increasing the system's …
Characterization Of Chopped Carbon Fiber Reinforced Composites Produced Using Fused Deposition Modeling, Jonathon Tran, Rachel Shubella
Characterization Of Chopped Carbon Fiber Reinforced Composites Produced Using Fused Deposition Modeling, Jonathon Tran, Rachel Shubella
Student Research Symposium
Fused deposition modeling (FDM) is an additive manufacturing (AM) process which can create parts with complex geometries in their final shape without need for additional specialized tools or devices. The FDM process builds parts by adding material layer by layer only where it is needed, saving energy, costs, production time for complex parts, and minimizing waste. Fiber reinforcement can significantly enhance the mechanical properties of a polymer material and depends significantly on the fiber length distribution and fiber orientation distribution of the final part. In this research, we investigated the various infill patterns of FDM printed Markforged onyx which is …
Processing And Testing Commodity And Engineering Cfrtp Composites, Delia M. Derner, Kristine Osorio
Processing And Testing Commodity And Engineering Cfrtp Composites, Delia M. Derner, Kristine Osorio
Research & Creative Achievement Day
Commodity thermoplastic polymers provide good load transfer to and protection of the reinforcing fibers. However, their mechanical properties are inferior to high-performance thermoplastic polymer composites. Findings of preliminary research conducted at WSU showed that continuous fiber reinforced (CFR) commodity polymers such as PETG and PP have better Izod impact resistance than their high-performance CFR counterparts. Further investigation of these findings is conducted in this research project. Quasi-isotropic laminates of GF/PETG and GF/PET-am are fabricated and tested in drop weight impact. The results will be compared with previously determined results of high-performance CF/PPS, CF/PA12 and GF/PPS. The samples are fabricated using …
Low-Velocity Drop Weight Impact And Compression After Impact Properties Of Symmetric Quasi-Isotropic Cfrtp Composites, Youyi Zhou, Kyungbin Min
Low-Velocity Drop Weight Impact And Compression After Impact Properties Of Symmetric Quasi-Isotropic Cfrtp Composites, Youyi Zhou, Kyungbin Min
Research & Creative Achievement Day
Low-velocity impact properties and residual compression strength after impact performance are used to evaluate composite materials for many applications. In this research, low-velocity drop-weight impact and compression after impact performance of four continuous fiber reinforcement thermoplastic (CFRTP) composites are investigated. Quasi-isotropic samples of GF/PP, CF-PA12, CF-PA6, GF-PA6 were fabricated and tested according to ASTM standards. Three energy levels of 10, 15, and 20 J/mm, were employed in this research. Results indicate that GF/PP exhibits the highest damage resistance and rebound-ability, evidenced by its minimal indentation and damage area, the highest significant damage threshold force, and the highest ratio of impact …
Ergo Carbon Workspace, Ethan C. Atkinson, Joshua N. Hanner, Rachel A. Henderson, Anders Nielsen, Mohamed A. Salat
Ergo Carbon Workspace, Ethan C. Atkinson, Joshua N. Hanner, Rachel A. Henderson, Anders Nielsen, Mohamed A. Salat
Research & Creative Achievement Day
The goal of the Ergo Carbon Workspace is to create a monitor stand that is both lightweight and easily transportable, catering to the needs of modern workspaces. Constructed from carbon fiber, epoxy resin, and a honeycomb core, this design emphasizes portability without sacrificing durability. Incorporating aerospace-grade honeycomb core as well as braided carbon fiber epoxy struts bolsters structural integrity while maintaining a lightweight part. The Ergo Carbon Workspace design facilitates effortless assembly and disassembly, simplifying transportation and packaging. Through the utilization of composite materials, the stand achieves an optimal balance of strength and portability. Ergo Carbon Workspace will also incorporate …
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
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 …
La1-Xsrxcoo3 Perovskite Nanomaterial: Synthesis, Characterization, And Its Biomedical Application, Adhira Tippur, Anyet Shohag, Luke Franco, Ahmed Touhami, Swati Mohan, Mohammed Uddin
La1-Xsrxcoo3 Perovskite Nanomaterial: Synthesis, Characterization, And Its Biomedical Application, Adhira Tippur, Anyet Shohag, Luke Franco, Ahmed Touhami, Swati Mohan, Mohammed Uddin
Research Symposium
Early cancer detection is paramount for effective treatment and potential cures. This research explores the application of perovskite materials, specifically Sr2+-doped Lanthanum Cobaltite (La1-xSrxCoO3) nanomaterials, in cancer detection, with a focus on rats as an experimental model. The ferroelectric nature of these materials, synthesized through a combination of sol-gel and molten-salt processes, was examined at varying Sr2+ doping levels (1-20 wt%). Rigorous characterization, employing X-ray diffraction and scanning electron microscopy, confirmed the uniform morphology of nano cubes, laying the foundation for subsequent investigations. The magnetic properties of the perovskite nanoparticles were probed, suggesting their potential as a diagnostic tool for …
Raman Spectroscopy Of Gan On Si With Varied Thin Film Thickness For High-Temperature Semiconductor Devices, Manika Tun Nafisa
Raman Spectroscopy Of Gan On Si With Varied Thin Film Thickness For High-Temperature Semiconductor Devices, Manika Tun Nafisa
Symposium of Student Scholars
This study explores the potential of GaN on Si thin films as a promising material for high-temperature semiconductor devices, owing to its impressive thermal properties and performance characteristics. Two GaN on Si samples were grown using Metal Organic Chemical Vapor Deposition (MOCVD), with different film thicknesses, and their potential for high-temperature applications was comprehensively assessed by performing Raman spectroscopy at various temperature levels. The experimental results provided valuable insights into the material's behavior at elevated temperatures. At 300°C, the GaN E2 (High) peak showed a Raman shift at 562.38 cm⁻¹ for high-thickness samples and 561.49 cm⁻¹ for low-thickness samples. …
L(D)-Tyrosine-Mediated One-Step Chiral Graphene Production For Chirality-Dependent Sensing, Fnu Pranav, Ali Ashraf, Meena Jaggi, Subhash C. Chauhan, Murali M. Yallapu
L(D)-Tyrosine-Mediated One-Step Chiral Graphene Production For Chirality-Dependent Sensing, Fnu Pranav, Ali Ashraf, Meena Jaggi, Subhash C. Chauhan, Murali M. Yallapu
Research Symposium
Background: Chirality has been the most iconic phenomenon that occurred in nature. The idea of mirror-image asymmetry associated with the biological entity is still unsolved The emergence of 2D layered nanomaterials which have already shown amazing properties and a wide range of applications, especially in the areas of sensing.Amino acids enantiomers have similar physical and chemical properties however their physiological responses get changed based on the enantiomers. For example, L from amino acids helps body in protein formation, and generation of biological signals etc. whereas the D-form may cause toxic effects. We have developed a novel and facile synthesis method …
Waste-To-Watts: An Energy Analysis Of Municipal Solid Waste As Fuel, Marianna Fischer, Brandon Lewis, Avary Zachary
Waste-To-Watts: An Energy Analysis Of Municipal Solid Waste As Fuel, Marianna Fischer, Brandon Lewis, Avary Zachary
2023 Symposium
Across the United States, there are two pressing problems: garbage disposal and electricity generation. Firstly, the infrastructure in place doesn’t properly dispose of or reuse municipal solid waste. In addition, power insecurity is becoming more prominent as power grids are becoming outdated. This project aims to provide an alternative solution for both issues by using a Brayton cycle based waste-to-energy incinerator. The overall system efficiency relies heavily on the feedstock used for incineration. One way efficiency can be increased is through pelletizing trash, ensuring an even burn profile, providing the correct amount of feedstock, and ensuring adequate energy production. However, …
Transportation Service Provider Collaboration: Benefits And Insights, Steven Roesch, Kimberly Ellis
Transportation Service Provider Collaboration: Benefits And Insights, Steven Roesch, Kimberly Ellis
International Material Handling Research Colloquium
No abstract provided.
Optimization Of Cargo Handling Equipment At The Airport, David Šourek
Optimization Of Cargo Handling Equipment At The Airport, David Šourek
International Material Handling Research Colloquium
No abstract provided.
Toward Architecture For Discrete Event Logistics Systems Design, Leon Mcginnis
Toward Architecture For Discrete Event Logistics Systems Design, Leon Mcginnis
International Material Handling Research Colloquium
No abstract provided.
On Logistics And Motion Planning – An Informal Axiomatic Approach, Moritz Roidl
On Logistics And Motion Planning – An Informal Axiomatic Approach, Moritz Roidl
International Material Handling Research Colloquium
No abstract provided.
Handling Disruptions In A Network With Cross-Docking, Vishal Badyal, Fahim Ahmed, Nikhil Aditya Eti, Nathan Huynh, William Ferrell
Handling Disruptions In A Network With Cross-Docking, Vishal Badyal, Fahim Ahmed, Nikhil Aditya Eti, Nathan Huynh, William Ferrell
International Material Handling Research Colloquium
No abstract provided.
Supply Chain Disruptors And Their Impact On The Future Of Manufacturing, Logistics, And Distribution, Henk M. Zijm, Sunderesh S. Heragu
Supply Chain Disruptors And Their Impact On The Future Of Manufacturing, Logistics, And Distribution, Henk M. Zijm, Sunderesh S. Heragu
International Material Handling Research Colloquium
No abstract provided.
Breakout Session E-1: "Resilience", Fabio Sgarbossa, William Ferrell
Breakout Session E-1: "Resilience", Fabio Sgarbossa, William Ferrell
International Material Handling Research Colloquium
No abstract provided.
Breakout Session E-2: "Information", Jelmer Pier Van Der Gaast, Moritz Roidl
Breakout Session E-2: "Information", Jelmer Pier Van Der Gaast, Moritz Roidl
International Material Handling Research Colloquium
No abstract provided.
Breakout Session E-3: "The Ideal Gtp Characteristics", Russell D. Meller, Uday Venkatadri
Breakout Session E-3: "The Ideal Gtp Characteristics", Russell D. Meller, Uday Venkatadri
International Material Handling Research Colloquium
No abstract provided.
Breakout Session D-1: "Sustainability", Uday Venkatadri, Kimberly Ellis
Breakout Session D-1: "Sustainability", Uday Venkatadri, Kimberly Ellis
International Material Handling Research Colloquium
No abstract provided.
Breakout Session D-2: "Artificial Intelligence", Sunderesh S. Heragu, Hector J. Carlo
Breakout Session D-2: "Artificial Intelligence", Sunderesh S. Heragu, Hector J. Carlo
International Material Handling Research Colloquium
No abstract provided.
Breakout Session D-3: "Robotics", Jennifer Pazour, Moritz Roidl
Breakout Session D-3: "Robotics", Jennifer Pazour, Moritz Roidl
International Material Handling Research Colloquium
No abstract provided.
Working Together — Scheduling Operations In Assisted Order Picking, Jelmer Pier Van Der Gaast
Working Together — Scheduling Operations In Assisted Order Picking, Jelmer Pier Van Der Gaast
International Material Handling Research Colloquium
No abstract provided.
Requirements For Generating Learning Environments For Autonomous Systems Behavior In A Digital Continuum, Anike Murrenhoff
Requirements For Generating Learning Environments For Autonomous Systems Behavior In A Digital Continuum, Anike Murrenhoff
International Material Handling Research Colloquium
No abstract provided.
Forklift Operator Safety & Productivity: A Review Of Current Research And Future Directions, Jesus A. Jimenez, Abhimanyu Sharotry, Francis A. Méndez Mediavilla
Forklift Operator Safety & Productivity: A Review Of Current Research And Future Directions, Jesus A. Jimenez, Abhimanyu Sharotry, Francis A. Méndez Mediavilla
International Material Handling Research Colloquium
No abstract provided.
Decision Rules For The Robotic Mobile Fulfillment System Of A Pcb Assembly Factory Warehouse, Ching-Jung Ting, Hendra Permana, Hsien-Mi Meng
Decision Rules For The Robotic Mobile Fulfillment System Of A Pcb Assembly Factory Warehouse, Ching-Jung Ting, Hendra Permana, Hsien-Mi Meng
International Material Handling Research Colloquium
No abstract provided.
Let Shoppers Shop: Why Click And Collect Is Not The Solution, Jennifer Pazour, Kai Furmans
Let Shoppers Shop: Why Click And Collect Is Not The Solution, Jennifer Pazour, Kai Furmans
International Material Handling Research Colloquium
No abstract provided.
Evaluating Business Service Models For On-Demand Warehousing: A Double Perspective On Suppliers And Customers, Maria Grazia Gnoni, Fabiana Tornese
Evaluating Business Service Models For On-Demand Warehousing: A Double Perspective On Suppliers And Customers, Maria Grazia Gnoni, Fabiana Tornese
International Material Handling Research Colloquium
No abstract provided.
A Fluid Flow Queuing Network Model For Performance Analysis Of Bulk Liquid Terminals, Debjit Roy, Werner Scheinhardt, Jan-Kees Van Ommeren
A Fluid Flow Queuing Network Model For Performance Analysis Of Bulk Liquid Terminals, Debjit Roy, Werner Scheinhardt, Jan-Kees Van Ommeren
International Material Handling Research Colloquium
No abstract provided.
Designing Facilities To Improve Flexibility: Zone-Based Dynamic Facility Layout With Embedded Input/Output Points, Sadan Kulturel-Konak, Abdullah Konak
Designing Facilities To Improve Flexibility: Zone-Based Dynamic Facility Layout With Embedded Input/Output Points, Sadan Kulturel-Konak, Abdullah Konak
International Material Handling Research Colloquium
No abstract provided.