Posts by Collection

Global Shaper - NYC Manhattan Hub as part of the World Economic Forum Global Shapers Community

The Global Shapers Initiative is a program started by the World Economic Forum to involve young people to address regional and global challenges. I am a member of the Global Shapers Community as part of the New York City Manhattan Hub. As part of this inspiring community, I have been collaborating directly with local leaders on discourse regarding the Battery Park City Resilience Projects, an active coastal protection project to protect southern Manhattan from the threat of storm surges and rising sea levels.

Presenter at inaugural Global Shapers Community Caribbean Retreat

I attended and presented at the inaugural Global Shapers Community Caribbean Retreat, organized by the Global Shapers Port of Spain Hub in Port of Spain, Trinidad and Tobago in September 2023. The conference was centered around the increased environmental impact in the Caribbean and its associated challenges, caused by unprecedented climate change. I was honored to present on the benefits and advantages of utilizing indigenous construction and building practices, human-centered design and biomimicry, particularly when addressing areas where large-scale flooding is a frequent occurrence.

Design of an Actuated Upper Limb Orthosis for Patients with Neurodegenerative Diseases

As part of a team of graduate engineers, I designed, modeled and simulated a 5 DOF arm orthosis to enhance reaching and grasping functionality for patients of early stage ALS and Parkinson’s.

Quadrupedal Walking Robot

I developed a quadrupedal robot as part of an engineering team project aimed at replicating the entire development cycle of a stand-alone engineering product.

Topology Optimization

As part of an assignment for Dr. Hod Lipson’s Digital Manufacturing course at Columbia University, I designed and 3-D modeled a desk and chair, before conducting topology optimization to reduce its mass while maintaining its performance requirements.

SAE Supermileage Fuel-Efficient Vehicle

I was a Founding Member of the TAMU-Q SAE Supermileage Team, with the aim to develop a fuel-efficient three-wheeled vehicle prototype for the SAE Supermileage 2018.

Perturbation-based training for motivating gait training paradigms in elderly people

The aim of this research project is to develop gait training paradigms through the application of different types of perturbations while subjects are moving with an assistive walker. By analyzing variations in mobility and stability with changing perturbation regimes, it is envisioned that a mobile task-oriented training system can be created to reduce the rates of high-risk falls for elderly subjects. This project is an extension of the Tethered Pelvic Assist Device (TPAD), and is being conducted with the Columbia University Robotics and Rehabilitation Laboratory, in a multidisciplinary team of researchers ranging from robotics and medical backgrounds. The outcomes and results of this research project were published in Nature’s Scientific Reports here.

Rheinmetall Barzan Advanced Technologies - Unmanned Ground Vehicle (UGV) R&D

I designed, prototyped and tested multiple subsystems, for a fleet of electrified semi-autonomous UGVs. Throughout my time on the project, I was involved in various aspects of the system. Initially, I was responsible for the integration and optimization of sensors such as LiDARs, EO/IR cameras and RADARs, along with troubleshooting of drivetrain and electrical subcomponents. This culminated in the development of a quasi-static UGV performance simulator on Simulink and an intensive characterization campaign to test vehicle performance in harsh climates and terrain. Simultaneously, I worked on verifying the hardware-agnosticity of the vehicle’s Command and Control (C2) software, by developing a new proof-of-concept vehicle and integrating it with the C2. Upon completion, this led me to the more architectural and design-oriented role of System Engineer, where I was responsible for the definition of system requirements and architecture for the vehicles’ relevant subsystems. This included vehicle and sensor performance requirements along with autonomous features such as waypoint navigation, target tracking and multi-UGV cluster mission planning and estimation.

Texas A&M University - Design and development of a hybrid cooling system for the thermal management of CPV solar cells

Designed, fabricated and tested a prototype hybrid cooling system for solar cells, using varying air-water flow rates under adiabatic conditions. Testing was conducted to analyze the impact of two-phase flow regimes on the cooling efficiency in CPV cells. Through fluctuating air and water flow rates entering the test section from cross-flow and cell impingement interfaces, flow regimes were identified through visualization via a high-speed camera. From further image-based analysis, the flow-rate ratio was tuned to observe the progression of critical flow regimes for optimal cooling efficiency.

Two-Phase Flow Visualization for a Hybrid Heat Sink

Published in ASME 5th Joint US-European Fluids Engineering Division Summer Meeting, 2018

This paper aimed to study two-phase flow under adiabatic conditions through the process of flow visualization. This was done through the use of a test section with a cross flow and a jet impingement (swirl jet).

Recommended citation: Rahman, D, Almomani, A, Hassan, I, Al-Hamidi, Y, & Rahman, A. "Two-Phase Flow Visualization for a Hybrid Heat Sink." Proceedings of the ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting. Volume 3: Fluid Machinery; Erosion, Slurry, Sedimentation; Experimental, Multiscale, and Numerical Methods for Multiphase Flows; Gas-Liquid, Gas-Solid, and Liquid-Solid Flows; Performance of Multiphase Flow Systems; Micro/Nano-Fluidics. Montreal, Quebec, Canada. July 15–20, 2018. V003T19A005. ASME. https://doi.org/10.1115/FEDSM2018-83363 https://asmedigitalcollection.asme.org/FEDSM/proceedings-abstract/FEDSM2018/V003T19A005/272185

Development of a Hybrid Heat Sink for Thermal Management of Photovoltaic Cells

Published in ASME International Conference on Nanochannels, Microchannels, and Minichannels, 2019

The objective of this paper was to study the effect of multiple jet impingements on one another in a heat sink under adiabatic conditions. The jet impingement is a unique design which aimed to optimize the cooling performance of a concentrated photovoltaic cell.

Recommended citation: Rahman, D, Almomani, A, Hassan, I, Al-Hamidi, Y, & Rahman, A. "Development of a Hybrid Heat Sink for Thermal Management of Photovoltaic Cells." Proceedings of the ASME 2019 17th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2019 17th International Conference on Nanochannels, Microchannels, and Minichannels. St. John’s, NL, Canada. June 23–26, 2019. V001T02A006. ASME. https://doi.org/10.1115/ICNMM2019-4244 https://asmedigitalcollection.asme.org/ICNMM/proceedings-abstract/ICNMM2019/1066131

Utilizing mobile robotics for pelvic perturbations to improve balance and cognitive performance in older adults: a randomized controlled trial

Published in Nature: Scientific Reports, 2023

This paper will describe a pilot study investigating the feasibility, safety, and effect of perturbation-based balance training for elderly individuals used the Mobile Tethered Pelvic Assistive Device (mTPAD), a novel robotic system designed by the Rehabilitation and Robotics Lab (ROAR) at Columbia University.

Recommended citation: Adeniyi, A., Stramel, D.M., Rahman, D. et al. Utilizing mobile robotics for pelvic perturbations to improve balance and cognitive performance in older adults: a randomized controlled trial. Sci Rep 13, 19381 (2023). https://doi.org/10.1038/s41598-023-46145-5 https://www.nature.com/articles/s41598-023-46145-5#citeas

Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post.

Teaching experience 2

Workshop, University 1, Department, 2015

This is a description of a teaching experience. You can use markdown like any other post.