Ali Tarraf

Despite the great risks of making DIY healthcare equipment, the maker community should keep building hope [Read More]

I recently gave a 3 hours workshop with the team of Beirut AI exploring how to think about Artificial Intelligence problems from a business perspective. We covered topics like AI in the business world, AI in the Middle East and North Africa, dived into analytical visualization tools such as Microsoft Power BI, and finally solved a consulting business case exercise about a bank marketing campaigns. Lessons learned on how to prepare for a workshop: [Read More]

Playing with Python Turtle graphics

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I started my research at the Combustion and Propulsion Research Lab in Indiana University Purdue University under the supervision of Dr Razi Nalim in the beginning of 2015. The next 2 years that followed were a tremendous learning experience. I had been away from academia for 5 years and diving back into textbooks and theories was not easy, however I found a fulfilling challenge in experimental research in the lab like with pulse jets, flame throwers, wave rotors, combustion chambers and much more. [Read More]

Project goal is to create a web application to quickly access Oracle database data. The web app is created using Dash by Plotly library which makes it really easy to deliver fully functional web application without going through all the javascript details.

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In paper DOI: 10.1243/09544062JMES1196 by Dr Epple on “Design of radial impellers: a combined extended analytical and numerical method”, a method is described for the analysis of centrifugal fan. Dr Epple suggest creating a spreadsheet as a conceptual analysis for a fan design. After creating a spreadsheet with all the relevant equations, I got frustrated with the constant editing that needs to be done on excel, and decided to implement the the design equation code in python. [Read More]

Used Adafruit datalogger shield with arduino and added an SSR relay to be able switch on and off AC current.

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Cuts Finished wiper Chips Machining aluminum 6061 for a friend who is working on a metal 3D printer. You got to love the mountain of chips! Squaring off big parts is always an issue, specially that you have to clamp down the parts and make sure it is aligned with a dial indicator. [Read More]

Experimenting with a low cost (<100$) plasma circuit on spaced electrodes, spark plug, and in a combustion chamber.

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I was having fun shooting quarters with a jet of combusted methane air products. Interesting how the initial shock-wave propagates, and how the jet speed slows down gradually. The initially speed of the jet can be estimated by looking at the images noting the jet tip evolution versus time. It starts at around 300ms, or Mach 0.88 and drops down very quickly to 100m/s and steadily decay.

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