They are pretty cool. This post was driven (pun intended) by the need for determining whether a 2003 BMW 325i can be safely driven with regular gas rather than higher octane gas. The compression ratio of the bmw is 9:1. This ratio tells us the volume of the combustion chamber at its largest capacity to… Continue reading Gas Engines!
Godel Machines
https://app.box.com/s/fi1c3wccxjrwtan9hq69 is a very interesting article I’ll write a bit about it later. http://www.math.hawaii.edu/~dale/godel/godel.html descriptions of a couple paradoxes and theorems important to computer science and mathematics.
Most likely last post of 2013!
I posted every month this year! Of course this is a pretty small one….
Lua
Lua is a pretty neat scripting language. It can be embedded in C programs and is used in some set top boxes, games and the UPenn robocup code http://j.mp/1c9DX09. Note to self, print(package.path) will show where Lua searches for Lua code.
Crash Course on Abstract Algebra
Group A group is a set of elements that has an associated operation that combines any two elements to create a third. Like the set of integers and the addition operator. However, a group is not that simple. To be a valid group the following axioms must be true: Closure: The third element that is… Continue reading Crash Course on Abstract Algebra
Real life MAS
I was reading the article “The Science of Why Our Brains Are Wired to Connect” http://tinyurl.com/m6keshp and I found the following quotes very interesting. We intuitively believe social and physical pain are radically different kinds of experiences, yet the way our brains treat them suggests that they are more similar than we imagine. Also, The neural basis… Continue reading Real life MAS
xkcd: Real Programmers
http://xkcd.com/378/ 🙂
Voting and Auction based Monitors
Condition variables and monitors go hand in hand. There are various monitor protocols: Signal-and-Continue (SC), Signal-and-Urgent-Wait (SU), Signal-and-Exit, Urgent-Signal-and-Continue etc. Basically these protocols define what order threads get to enter, reenter, and exit methods in a monitor. They are defined by a first-come first-served (FCFS) queuing schemes to ensure their specific protocols are met. I… Continue reading Voting and Auction based Monitors
Influence Diagrams, Job Shop Scheduling and Morphological Analysis
Yesterday I learned about a real life online job shop scheduling problem. In the HVAC business calls come in to the office where the office person schedules the job and calls the guys out on the road to tell them where they go next. Sometimes those calls require immediate attention so assigning and saying when… Continue reading Influence Diagrams, Job Shop Scheduling and Morphological Analysis
GE on the Future of Manufacturing
I listened to Stephan Biller‘s talk on the future of manufacturing at GE. I was saddened to hear that like Boeing GE also doesn’t have many of things that I thought they would have. GE and Boeing both make jet engines and neither has the software to do the rescheduling and re-planning and renegotiation of… Continue reading GE on the Future of Manufacturing