04.16.06
Posted in Computational Neuroscience at 5:38 pm by Gabriel Gonzalez
This is the first post in the category of Computational Neuroscience and shouldn’t be the last. When I have read this papers I will post a summary of them, highlighting the main ideas.
These two papers are needed for the most astonishing project I have ever worked, hold on for a half a year and you will see 
Central Pattern Generators
CPG for swimming
The papers below have been found trying to find projects which use any models of CPGs or whatever information that could help to understand the behavior and interconnection of these amazing bunch of neurons.
CPG to control a pyloric-based system
Rethinking CPGs
CPG for artificial locomotion
Distributed CPG for a serpentine Robot
If you are reading this and have any useful comment, please POST it below! Thank you
More related stuff
Raptor Central pattern generators
Swimming simulation from Neurobiology
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04.10.06
Posted in Uncategorized at 12:05 pm by Gabriel Gonzalez
I am really interested in improving the performance
Optimising C++ apps
C++ Templates - The Complete Guide
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03.21.06
Posted in General Computing, Programming at 3:22 pm by Gabriel Gonzalez
Some useful links to explore the world of 3D inside J2ME. It looks to be pretty good since it does not overload the hardware too much (you do not get hardware acceleration obviously) and still you get pretty good results in handled hardware.
I will post more on this.
Getting started with mobile 3D API
Picking objects
Simple Example
Another example
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03.09.06
Posted in General Computing at 3:26 am by Gabriel Gonzalez
This post will be growing up in few days:
Vector normalization done fast
SSE @ ars tecnica
The point looks to be in doing as much operations as possible shuffling the four components you have loaded in xmmN registers:
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03.04.06
Posted in General Computing at 4:10 am by Gabriel Gonzalez
I was reading a paper about Multi-core (several processors in the same package) vs single packed processors and I rembered why I didn’t enjoyed very much IT papers.
They tried to proof a multi-core architecure perform better than its older brother. They assume that a second processor in other package perform 80% and one in the same 70%.
Let have a processor of 3Ghz and dual-core of 2.2GHz each, you know they are made with lower speed to reduce power and heat:
- If you have two processors in differents packages, they perform as a single machine of: 3000Hz * 1.8 = 5400Hz
- If you have dual-core package they perform : 2200Hz * 1.7 = 3740Hz, so if we add another package you get: 3740Hz * 1.8 = 6732Hz
Oh! Yeah! You get much better performance with dual-core systems, nifty/cool!!!!
Let assume each extra package you add you loose a 20% of performe respect the previous package:
- If you have 4 processor of 3GHz each you get : 3000Hz * 1.8 * 4 = 21600Hz
Sigh! Who is right??!!
That’s why I love papers from biology journals, they almost never leave their proofs uncompleted.
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02.07.06
Posted in Bluetooth at 12:21 pm by Gabriel Gonzalez
This is the next step on bluetooth project:
http://www.gatefold.co.uk/smurf/
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02.05.06
Posted in Bluetooth, Programming at 1:21 am by Gabriel Gonzalez
Due to my interest in bluetooth I need to start learning about J2ME, MIDlet and related stuff to achieve the goals I have in mind. Once I learn all this new information I will code, together Ruben, a very interesting and maybe 100% new mobile application.
J2ME and Midlets building documentation:
J2ME and MIDP Development
MIDlet packing with J2ME
And Eclipse ME plugin link I am stilll playing around with it, I will write a larger post due in course:
Eclipse ME Plugin
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02.04.06
Posted in Bluetooth at 9:30 am by Gabriel Gonzalez
As I told someone some days ago I am working in a new use of bluetooth technologies in mobiles phones and handled devices. As first step I am collecting as much information about different bluetooth stack implementations, programming interfaces on severals OSs (mainly windows, linux and *BSD). I am using this entry to write down all useful URLs I find on Internet.
Official Bluetooth website
Bluetooth programming with sockets in Windows
Slides on Bluetooth programming in Linux
Bluetooth programming in Linux (MSc Thesis)
Bluetooth Resourcing Center
Windows and Nokia bluetooth programming. Interesting stuff.
Bluetooth applications for Nokia
New links from Benjamin:
http://www.benhui.net
Java APIs for Bluetooth I
Java APIs for Bluetooth II
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