If you have a DVD image in ISO format or in directory structure (see below) and you would like to encode this image to AVI format for later watching in smaller size, Mencoder may help you automate this task by a single command as well as consuming the computer power of a cluster through batch scheduler. The DVD structure looks like below.

DVD/
|--- AUDIO_TS
`--- VIDEO_TS
     |--- VIDEO_TS.BUP
     |--- VIDEO_TS.IFO
     |--- VIDEO_TS.VOB
     |--- VTS_01_0.BUP
     |--- VTS_01_0.IFO
     |--- VTS_01_0.VOB
     |--- VTS_02_0.BUP
     |--- VTS_02_0.IFO
     |--- VTS_02_0.VOB
     |--- VTS_03_0.BUP
     |--- VTS_03_0.IFO
     |--- VTS_03_0.VOB
     |--- VTS_04_0.BUP
     |--- VTS_04_0.IFO
     `--- VTS_04_0.VOB

Mencoder has many video filter and scale is one of them.

mencoder input.avi \
         -vf scale=64:-2 \
         -ovc lavc \
         -oac lavc \
         -ac mp3 \
         -o output.3gp

Tags: mplayer, mencoder

First of all, I'm not a chemistry scientist at all. It is not my field. This era, we are on the globalization and multi-disciplinary interaction. I am just a computer engineer and any fields might involve to computer. Actually, computer itself is absolutely useless as long as you don't have applications to run. Recent drugs are officially recovered using virtual screening technology based on computational science where as computer system is used as a key component to simulate the effect of each drug candidate instead of going to try it in real laboratory. This technique is a part of quantum chemistry. Not only simulation is used here but also visualization is another critical part. I can't remember how to explain the structure of a molecule but I'm sure it must be in 3D plane. Human may imagine how it is but it is impossible to communicate to others by just description. The only way to solve this problem is 3D visualization in computer. That's why I'm here. Moreover, my box is Ubuntu Edgy. I have to find my way to visualize input/output in 3D.

Do you know why a wedding is usually took so long preparation time? Generally, a wedding may take place after 4 months or more of the time you made final decision. Why? The answer is to make the wedding ceremony perfect by impressive presentation. If you can't imagine, I recommend you to check out an example at Ju & Na Wedding. I'm not sure but it seems wedding is not just church and hotel but web too. That is the starting point to introduce guests to the wedding. All details are updated often to make sure guests got the correct information. In the ceremony, the most impressive part is presentation. Actually, the 4 months before the wedding are just to make the perfect presentation just right for the couples.

Someday, you might want to monitor popular internet services on several hosts. It should be quick and simple so you don't have to install so long software packets to meet the dependencies. I have ones for you. They are written in pure Perl to monitor HTTP service and MySQL service.

I found a proof of concept of green power at EcoGeek. It's all about making a cluster with processing power of 22.7 GHz using 30A power from vegetable-oil-powered generator.