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Proceedings Papers

Lunar Dust Tolerance and Mitigation of Space Suits Through Nano Fabricated Electrostatic Cleaning

Voss Harrigan, Korey Carter, Marcus Gilmore, Jiajun Xu
Proc. ASME. IMECE2023, Volume 8: Engineering Education, V008T09A023, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-114192
https://doi.org/10.1115/IMECE2023-114192
View Paper titled, Lunar Dust Tolerance and Mitigation of Space Suits Through Nano Fabricated Electrostatic Cleaning
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Topics: Aerospace engineering, Astronauts, Design, Dust, Nanofabrication, Particulate matter, Reliability, Safety, Soil, Systems engineering
Proceedings Papers

Study on Molecular Dynamics Simulation With Boiling Water and Copper for Different Nanostructured Surfaces

Tanjee Afreen, Fisseha L. Gebre, JiaJun Xu
Proc. ASME. IMECE2023, Volume 10: Heat Transfer and Thermal Engineering, V010T11A020, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-116819
https://doi.org/10.1115/IMECE2023-116819
View Paper titled, Study on Molecular Dynamics Simulation With Boiling Water and Copper for Different Nanostructured Surfaces
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Topics: Boiling, Copper, Molecular dynamics simulation, Water, Bubbles, Engineering simulation, Flow (Dynamics), Heat, Liquid films, Microscale devices
Proceedings Papers

Comparison of Machine Learning Models and Analytical Scaling Law for Predicting Melt-Pool Depth in Laser Powder Bed Fusion (LPBF) Additive Manufacturing

Feiyang Bai, Siva Surya Prakash Reddy Arikatla, Nian Zhang, Fisseha L. Gebre, Jiajun Xu
Proc. ASME. IMECE2023, Volume 3: Advanced Manufacturing, V003T03A057, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-114152
https://doi.org/10.1115/IMECE2023-114152
View Paper titled, Comparison of Machine Learning Models and Analytical Scaling Law for Predicting Melt-Pool Depth in Laser Powder Bed Fusion (LPBF) Additive Manufacturing
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Topics: Additive manufacturing, Lasers, Machine learning, Scaling laws (Mathematical physics)
Proceedings Papers

Characterization of Additively Manufactured 18Ni Maraging 300 Steel and the Effect of Heat Treatment on the Microstructure and Mechanical Property

Ryan Walker, Chance Eden, Fisseha L. Gebre, Jiajun Xu
Proc. ASME. IMECE2023, Volume 3: Advanced Manufacturing, V003T03A070, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-111333
https://doi.org/10.1115/IMECE2023-111333
View Paper titled, Characterization of Additively Manufactured 18Ni Maraging 300 Steel and the Effect of Heat Treatment on the Microstructure and Mechanical Property
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Topics: Additive manufacturing, Heat treating (Metalworking), Mechanical properties, Steel
Proceedings Papers

Design and Development of Low-Temperature Ni Coating Without Plasma Using Atomic Layer Deposition

David Box Garcia, Hayden Brown, Fisseha Gebre, Vivek Dwivedi, Jiajun Xu
Proc. ASME. IMECE2023, Volume 4: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology, V004T04A041, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-114158
https://doi.org/10.1115/IMECE2023-114158
View Paper titled, Design and Development of Low-Temperature Ni Coating Without Plasma Using Atomic Layer Deposition
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Topics: Atomic layer deposition, Coatings, Design, Low temperature, Plasmas (Ionized gases)
Proceedings Papers

Design and Development of Solar Array Deployment and Stabilization System for NASA MINDS Student Competition

Evan Preller, Joshua Dillard, Brandon Botchway, Kelechi Iwuchukwu, Fisseha L. Gebre, Jiajun Xu
Proc. ASME. IDETC-CIE2023, Volume 8: 47th Mechanisms and Robotics Conference (MR), V008T08A075, August 20–23, 2023
Publisher: American Society of Mechanical Engineers
Paper No: DETC2023-109002
https://doi.org/10.1115/DETC2023-109002
View Paper titled, Design and Development of Solar Array Deployment and Stabilization System for NASA MINDS Student Competition
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Topics: Design, NASA, Solar cell arrays, Student competitions
Proceedings Papers

Experimental Investigation of Capillary Performance of Additively-Manufactured Lattice Structures for Fluid Wicking Applications

Mehdi Kabir, Ryan Walker, Chance Eden, Fisseha Gebre, Jiajun Xu
Proc. ASME. MSEC2023, Volume 1: Additive Manufacturing; Advanced Materials Manufacturing; Biomanufacturing; Life Cycle Engineering, V001T01A001, June 12–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2023-100739
https://doi.org/10.1115/MSEC2023-100739
View Paper titled, Experimental Investigation of Capillary Performance of Additively-Manufactured Lattice Structures for Fluid Wicking Applications
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Topics: Additive manufacturing, Fluids, Metals, Thermal management, Elevations (Drawings), Heat transfer, Lasers, Methanol, Permeability, Porosity
Proceedings Papers

Nano Fabricated Electrostatic Cleaning Technique for Dust Control for Solar Power Efficiency on Lunar Surface

Voss Harrigan, Korey Carter, Marcus Gilmore, Jiajun Xu
Proc. ASME. POWER2023, ASME Power Applied R&D 2023, V001T05A010, August 6–8, 2023
Publisher: American Society of Mechanical Engineers
Paper No: POWER2023-108823
https://doi.org/10.1115/POWER2023-108823
View Paper titled, Nano Fabricated Electrostatic Cleaning Technique for Dust Control for Solar Power Efficiency on Lunar Surface
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Topics: Dust control, Photovoltaic panels, Solar power, Dust, Solar energy, Carbon nanotubes, Particulate matter, Climate, Outer space, Robots
Proceedings Papers

Design of an Improved Vertical Spiral Closed Loop Geothermal Heat Exchanger

Tarun Malhotra, Dorian Davis, Deshawn Adams, Fisseha L. Gebre, Jiajun Xu
Proc. ASME. IMECE2022, Volume 8: Fluids Engineering; Heat Transfer and Thermal Engineering, V008T11A002, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-94381
https://doi.org/10.1115/IMECE2022-94381
View Paper titled, Design of an Improved Vertical Spiral Closed Loop Geothermal Heat Exchanger
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Topics: Design, Geothermal engineering, Heat exchangers
Proceedings Papers

Development of Phase-Change Materials with Improved Thermal Properties for Space-Related Applications

Patrick Adegbaye, Yong Pei, Mehdi Kabir, Herve Cabrel Sandja Tchamba, Bao Yang, Jiajun Xu
Proc. ASME. IMECE2022, Volume 8: Fluids Engineering; Heat Transfer and Thermal Engineering, V008T11A001, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-94380
https://doi.org/10.1115/IMECE2022-94380
View Paper titled, Development of Phase-Change Materials with Improved Thermal Properties for Space-Related Applications
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Topics: Phase change materials, Thermal properties
Proceedings Papers

Introducing Integral Engineering Skillsets to the Diverse Population of Underrepresented Students at the University of the District of Columbia via the NASA Human Exploration Rover Challenge

Voss Harrigan, Jiajun Xu, Sasan Haghani
Proc. ASME. IMECE2022, Volume 7: Engineering Education, V007T09A022, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-96182
https://doi.org/10.1115/IMECE2022-96182
View Paper titled, Introducing Integral Engineering Skillsets to the Diverse Population of Underrepresented Students at the University of the District of Columbia via the NASA Human Exploration Rover Challenge
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Topics: Additive manufacturing, NASA, Students, Teams, Design, Engineering education, Manufacturing
Proceedings Papers

Utilizing the NASA Human Exploration Rover Challenge Project at the University of the District of Columbia (UDC) to Enhance the Engineering Experience for the Diverse Population of Underrepresented Students

Voss Harrigan, Jiajun Xu, Sasan Haghani
Proc. ASME. IMECE2021, Volume 9: Engineering Education, V009T09A024, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-71979
https://doi.org/10.1115/IMECE2021-71979
View Paper titled, Utilizing the NASA Human Exploration Rover Challenge Project at the University of the District of Columbia (UDC) to Enhance the Engineering Experience for the Diverse Population of Underrepresented Students
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Topics: NASA, Students, Additive manufacturing, Design, Cutting, Engineering education, Feedback, Manufacturing, Sensors, Teams
Proceedings Papers

Generative Design of a Novel Additively Manufactured Solar Array System for Powering Space Equipment on the Lunar Surface

Jaime Rios, Carlos Velazquez, Teddy Rakotomanana, Mehdi Kabir, Jiajun Xu
Proc. ASME. IMECE2021, Volume 9: Engineering Education, V009T09A002, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-71221
https://doi.org/10.1115/IMECE2021-71221
View Paper titled, Generative Design of a Novel Additively Manufactured Solar Array System for Powering Space Equipment on the Lunar Surface
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Topics: Additive manufacturing, Design, Solar cell arrays, NASA, Poles (Building), Weight (Mass), Cylinders, Durability, Dust, Engineering prototypes
Proceedings Papers

Additively Manufactured Two-Phase Heat Exchanger Integrating PCMs for Spacecraft Thermal Management

Mehdi Kabir, Takele Gemeda, Evan Preller, Raid Mohammed, Jiajun Xu
Proc. ASME. IMECE2021, Volume 11: Heat Transfer and Thermal Engineering, V011T11A001, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-68951
https://doi.org/10.1115/IMECE2021-68951
View Paper titled, Additively Manufactured Two-Phase Heat Exchanger Integrating PCMs for Spacecraft Thermal Management
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Topics: Additive manufacturing, Heat exchangers, Phase change materials, Space vehicles, Thermal management
Proceedings Papers

Investigation of the Effect of Cross Section on the Convective Heat Transfer Performance of Nanoemulsion in Microchannel Heat Exchanger

Takele Gameda, M. Mehdi Kabir, Jiajun Xu
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T07A013, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-66048
https://doi.org/10.1115/FEDSM2021-66048
View Paper titled, Investigation of the Effect of Cross Section on the Convective Heat Transfer Performance of Nanoemulsion in Microchannel Heat Exchanger
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Topics: Convection, Cross section (Physics), Ethanol, Flow (Dynamics), Heat exchangers, Heat transfer, Microchannels
Proceedings Papers

Vision-Based Motion Planning of Cable-Driven Parallel Robots in the Presence of Moving Obstacle Using Sampling-Based Method

Jiajun Xu, Kyoung-Su Park
Proc. ASME. ISPS2021, ASME 2021 30th Conference on Information Storage and Processing Systems, V001T06A002, June 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2021-65188
https://doi.org/10.1115/ISPS2021-65188
View Paper titled, Vision-Based Motion Planning of Cable-Driven Parallel Robots in the Presence of Moving Obstacle Using Sampling-Based Method
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Topics: Cables, Path planning, Robots, Algorithms, Collisions (Physics), Simulation, Unmanned aerial vehicles, Closed loop systems, Reliability
Proceedings Papers

Design and Development of an Additively Manufactured Geothermal Heat Exchanger for Improved Efficiency and Easy Installation

Takele Gemeda, Sandy Estrada, Wondwosen Demisse, Lei Wang, Jiajun Xu
Proc. ASME. IMECE2020, Volume 2B: Advanced Manufacturing, V02BT02A019, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-23288
https://doi.org/10.1115/IMECE2020-23288
View Paper titled, Design and Development of an Additively Manufactured Geothermal Heat Exchanger for Improved Efficiency and Easy Installation
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Topics: Additive manufacturing, Design, Geothermal engineering, Heat exchangers
Proceedings Papers

Experiential Learning in STEM for a Diverse Student Population at the University of the District of Columbia (UDC) Through the Implementation of the UDC Rover Project

Giancarlo D'Orazio, Jiajun Xu, Sasan Haghani
Proc. ASME. IMECE2020, Volume 9: Engineering Education, V009T09A023, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-24091
https://doi.org/10.1115/IMECE2020-24091
View Paper titled, Experiential Learning in STEM for a Diverse Student Population at the University of the District of Columbia (UDC) Through the Implementation of the UDC Rover Project
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Topics: Design, Students, Teams, Education, Engineering education, NASA
Proceedings Papers

Student Experiential Learning Through Design and Development of a Subsurface Melting Head for NASA RASCAL-Special Edition Competition

Jiajun Xu, Sasan Haghani, Giancarlo D'Orazio, Carlos Velazquez
Proc. ASME. IMECE2020, Volume 9: Engineering Education, V009T09A025, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-23287
https://doi.org/10.1115/IMECE2020-23287
View Paper titled, Student Experiential Learning Through Design and Development of a Subsurface Melting Head for NASA RASCAL-Special Edition Competition
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Topics: Design, Education, Melting, NASA, Students
Proceedings Papers

Wettability Control of PDMS Surface Coated on the Glass Using Ultrasonic Vibration Treatment

Dong-su Park, Jiajun Xu, Kyoung-Su Park
Proc. ASME. ISPS2020, ASME 2020 29th Conference on Information Storage and Processing Systems, V001T06A005, June 24–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2020-1954
https://doi.org/10.1115/ISPS2020-1954
View Paper titled, Wettability Control of PDMS Surface Coated on the Glass Using Ultrasonic Vibration Treatment
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Topics: Glass, Plasma desorption mass spectrometry, Surface roughness, Surface tension, Vibration