While researching resistive type Graphene sensors, I needed to demonstrate their portability. I implemented a battery powered 4-point measurement unit to interpret sensor readings.

I created the measurement board leveraging an Analog Device AD7793 IC. This chip delivered most of the required fu...

From 2010-2012, as graduate student in mechanical engineering at the University of Massachusetts Lowell, I researched resistive sensors. These Graphene sensors were being tested for thier ability to detect chemical traces of explosives. I fabricated and tested sensors coated with Graphene using phot...

On January 17, 2023 I took my camera for a walk following light snow. With a Yashica 135mm lens mounted to my Nikon Z5 camera I peaked between houses, looked up streams, and scanned the sky.

Although not finding too much color, I spied a hawk in the trees. The hawk perched on tree branches too fa...

CNC router needs to be given instructions (G-Code) to move a tool over and around a work-piece. The first tasks I performed with the router used instructions generated by a small utility I wrote to cut out the outline of a polygon, but I wanted a more general solution.

I am writing a utility to cr...

I print pictures on my color laser printer (Canon LBP612CDW). When I needed to print a passport photo I found that the skin tones were off; there was a strong red shift in the skin.

In order to create better prints I calibrated my printer profile with the aid of a flat-bed scanner.

I work in Lin...

While performing research at UMass Lowell, I worked along side a MEMS project. This project needed to pass two analog signals to the MEMS device to cause parts to move. The two signals needed to be out of phase by varying amounts, and the signals needed to be biased. Providing aid to this project, I...