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EcoTouch

http://nhahn.org/portfolio/eco-touch.html

EcoTouch was developed for the Stony Brook Watershed Association as part of my undergraduate HCI Capstone project. EcoTouch is a game that helps individuals understand the impact of using sustainable systems in their home. It uses a multitouch table with augmented reality markers to create a physical and digital experience, where users complete simulations of attempting to make a more sustainable home. Our model that we used to explain an individuals exhibit experience. Some concepts from ideation.

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Alternative ACL Fixation Device

http://nhahn.org/portfolio/surgery.html

Alternative ACL Fixation Device. For my Surgery for Engineer's project, my team did an evaluation of the current techniques utilized for Anterior Cruciate Ligament (ACL) repair. After reviewing the fixation techniques, we determined that current ACL fixation devices lack the ability to tension a graft post-fixation. Therefore, we developed TensiFix -a device that utilizes an interference screw to provide post-fixation tensioning.

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Greenlight

http://nhahn.org/portfolio/greenlight.html

Greenlight is a system created for my Information Systems capstone project. It harnesses this idea of daylight harvesting - adjusting artificial lighting in accordance with natural lighting - wirelessly. By connecting together 3 components - a dimmer, a sensor, and a backend server - we created a system that has a potential for saving up to 70% of lighting costs. The above workflow is how the Greenlight system works from the sensor, bot the backend server, and back out to the dimmer. The image to the rig...

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Resume

http://nhahn.org/resume.html

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UCRE Contextual Design - (Re)Iterate

http://nhahn.org/portfolio/ucre.html

UCRE Contextual Design - (Re)Iterate. For my User Centered Research and Evaluation class (UCRE), half of the semester was focused on a contextual design project. For this project, my team and I explored the idea of how we could improve the way students complete assignments. We developed the (Re)Iterate solution, an assignment portal that would allow for students to perform iterations on assignment and receive feedback from instructors and other students, all while tracking their various iterations. Final...

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A&M Creamery

http://nhahn.org/portfolio/creamery.html

A sample ruby-on-rails application I created for my Information Systems class. It is based around an imaginary creamery.

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Six Degrees of Francis Bacon - Clustering

http://nhahn.org/portfolio/francis_bacon.html

Six Degrees of Francis Bacon - Clustering. As a part of my Six Degrees of Francis Bacon class, my group wanted to see if we could discern the attitudes towards contextually sensitive words in particular time periods by using their n-gram frequencies. We used the K-Mediods algorithm to cluster similar words from the Google N-gram database. Do the ‘individualistic’ words? We also would like to compare some data specific to The Communist Manifesto to our general dataset. We looked at Twenge’s study again wh...

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Grip it Good

http://nhahn.org/portfolio/grip_sense.html

For my BME design capstone project, my team is working on designing a novel way to detect the grip force of patients in occupational therapy. We decided to select common, every-day objects and embed them with force sensors. This would increase the functionality and association of the measured grip force to the task being performed. We have previously described loss of grip force as a potential consequence of morbidities that patients may encounter. Whether this reduction in strength is due to neurolo...

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Greenlight - Mobile

http://nhahn.org/portfolio/greenlight_mobile.html

As an addition to the Greenlight project, I worked on creating a mobile application that allows you to control the system and receive information about its current status. Additionally, this application works with a Bluetooth Low Energy beacon to detect if you are close to a Greelight-enabled room and alerts you appropriately. Account to appear in the general settings screen, and allow for background Bluetooth scanning preferences to be adjusted. Where(id = 5).order by(:updated at). And flashed a custom ...

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Maintenaid

http://nhahn.org/portfolio/maintenaid.html

This was an application created for maintenance workers for my Designing Human Centered Software class. We saw that most maintenance workers utilize paper systems to manage and organize work requests. To help improve workers' ability to coordinate and log requests, we performed a contextual inquiry to gather what features workers would want in a system. After gathering the requirements, we went through 3 prototyping stages, finally producing an Android app. Eliminate the need for paper request forms.