Archive for 'English'

Articles #3: Bifurcational and dynamical analysis of a continuous biofilm reactor

A nice analysis on biofilms.

M.E. Russo, P.L. Maffettone, A. Marzocchella, P. Salatino, Bifurcational and dynamical analysis of a continuous biofilm reactor, Journal of BiotechnologyVolume 135, Issue 3, , 30 June 2008, Pages 295-303.

A. Marzocchella (mail) is the corresponding author.
Here is the abstract:

A dynamical model of a continuous biofilm reactor is presented. The reactor consists of a three-phase internal loop airlift operated continuously with respect to the liquid and gaseous phases, and batchwise with respect to the immobilized cells. The model has been applied to the conversion of phenol by means of immobilized cells of Pseudomonas sp. OX1 whose metabolic activitywas previously characterized (Viggiani, A., Olivieri, G., Siani, L., Di Donato,A., Marzocchella,A., Salatino, P., Barbieri, P., Galli, E., 2006.An airlift biofilm reactor for the biodegradation of phenol by Pseudomonas stutzeri OX1. Journal of Biotechnology 123, 464–477). The model embodies the key processes relevant to the reactor performance, with a particular emphasis on the role of biofilm detachment promoted by the fluidized state. Results indicate that a finite loading of free cells establishes even under operating conditions that would promote wash out of the suspended biophase. The co-operative/competitive effects of free cells and immobilized biofilm result in rich bifurcational patterns of the steady state solutions of the governing equations, which have been investigated in the phase plane of the process parameters. Direct simulation under selected operating conditions confirms the importance of the dynamical equilibrium establishing between the immobilized and the suspended biophase and highlights the effect of the initial value of the biofilm loading on the dynamical pattern.

Get the article: doi:10.1016/j.jbiotec.2008.04.003

If you can’t access the article, drop a comment below…

Posted on 28 June '08 by admin, under English, Scientific Thing. .

4857: Tuzla (Documentary/Belgesel)

4857 Documentary

Tuzla Cemetery overlooks Tuzla Shipyards. Now start walking down the cemetery slope.  On your left is the military zone. Green and free of humans. Then all of a sudden you see nothing but concrete blocks of flats. The workers leave their homes around seven in the morning to work “outside”, in the shipyards, in leather and side industries. Among the family flats you can also find bachelor apartments filled with beds and longing for the family.  Keep walking down the slope: factories manufacturing small ship parts, the unceasing roar from the İçmeler Köprüsü on the E5 freeway,   the never empty labor pick-up strip at the crossroads, the sound of the local express train. Walk pass the İçmeler stop, and here is Aydınlı Bay packed with almost all of Turkey’s shipyards. The workers who go through forty eight different doors everyday, hundred men high cranes, steel sheets, the speed and sweat which merge them into one. The time unit in the shipyards is the fleeting instant a cigarette bud is dropped on the floor, the split second between making a living and death between hope and pain, their and ours.  Tuzla Cemetery overlooks Tuzla Shipyard…

Report On Work Security In Tuzla Shipyards (Turkish / Türkçe)

Project Blogs:
http://www.paraketa.net
http://4857-belgesel.blogspot.com/
http://4857-documentary.blogspot.com/

Posted on 14 June '08 by admin, under English, Podcast Thing, Political Thing, Scientific Thing. .

How to: Get Rid of Annoying Firefox Crashes in Ubuntu Hardy (Flashplugin-nonfree)

Adobe Flash Player

Image via Wikipedia

(My solution is just for 32bit systems, I’ve tried it on 4 systems both upgraded from 7.10 and fresh installs. Resulted same. Be aware! This is not the official solution!)

Adobe’s Flash Player problematic is a little bit complicated in Ubuntu Hardy Heron. Ubuntu uses pulseaudio as soundserver and default flashplugin-nonfree package is having non-quality interaction with pulseaudio. Most of the Firefox crashes are because of this. There is a partial solution with this: nspluginwrapper package. It’s a mediator between pulseaudio & flashplugin-nonfree. Acts like a lubricant ;) But after opening some flash object containing web sites, flash objects occur as greyish blank region(s)… No luck!

I get pissed off during this struggle. I was trying to convince myself as “Hey dear me! No way or another there should be a solution for that!”. I’ve searched all the bug reports, several forums, blah blah and I came to an end. Here is the solution.

Open a terminal then;

sudo apt-get clean
sudo apt-get autoclean
sudo apt-get update
sudo apt-get remove -y –purge flashplugin-nonfree
sudo apt-get remove -y –purge nspluginwrapper
sudo apt-get remove -y –purge libflashsupport

(Note: purge’s prefix is double dash.) then go to the  Adobe website, (I’ve used Flash Player 10 Beta, you may choose ver. 9) download the .tar.gz package;

For ver. 9.0.124: http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash&promoid=BUIGP

or

For ver 10 Beta: http://labs.adobe.com/downloads/flashplayer10.html

After that open the archive to any folder and close your browser… Run the installer (follow the instructions):

./flashplayer-installer

If it’s ok, then go to the directory

/home/YOURUSERNAME/.mozilla/firefox/xxxxxx.default/

(ps.:xxxxxx is variable) and delete the xpti.dat file. That’s all, restart your browser and voila! Everything works as intended!

Zemanta Pixie

Posted on 8 June '08 by admin, under English, Linux. .

Ubuntu 8.04 “Hardy Heron” (LTS) Is Released

Ubuntu (Linux distribution)Image via Wikipedia

Canonical announces the Ubuntu 8.04 “Hardy Heron” (Long Term Service). In every release, Ubuntu becomes better & better. Closes the gap between main stream desktop OSs.

I’ve discussed about the new features since the 7.10 release [here], [here] & [here]. So go & download the brand new Ubuntu 8.04. Here are the links & torrents:

A full list of available files, including BitTorrent files, can be found below.

If you need help burning these images to disk, see
this guide.

Files:


MD5SUMS 1 KB
MD5SUMS-metalink 1 KB
MD5SUMS-metalink.gpg 1 KB
MD5SUMS.gpg

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1 KB
ubuntu-8.04-alternate-amd64.iso
ubuntu-8.04-alternate-amd64.iso.torrent 28 KB
ubuntu-8.04-alternate-amd64.jigdo
ubuntu-8.04-alternate-amd64.list
ubuntu-8.04-alternate-amd64.metalink 13 KB
ubuntu-8.04-alternate-amd64.template

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ubuntu-8.04-alternate-i386.iso
ubuntu-8.04-alternate-i386.iso.torrent 28 KB
ubuntu-8.04-alternate-i386.jigdo
ubuntu-8.04-alternate-i386.list
ubuntu-8.04-alternate-i386.metalink 13 KB
ubuntu-8.04-alternate-i386.template

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ubuntu-8.04-desktop-amd64.iso
ubuntu-8.04-desktop-amd64.iso.torrent 28 KB
ubuntu-8.04-desktop-amd64.list
ubuntu-8.04-desktop-amd64.manifest
ubuntu-8.04-desktop-amd64.metalink

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13 KB
ubuntu-8.04-desktop-i386.iso
ubuntu-8.04-desktop-i386.iso.torrent 28 KB
ubuntu-8.04-desktop-i386.list
ubuntu-8.04-desktop-i386.manifest
ubuntu-8.04-desktop-i386.metalink

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13 KB
ubuntu-8.04-server-amd64.iso
ubuntu-8.04-server-amd64.iso.torrent 22 KB
ubuntu-8.04-server-amd64.jigdo
ubuntu-8.04-server-amd64.list
ubuntu-8.04-server-amd64.template

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ubuntu-8.04-server-i386.iso
ubuntu-8.04-server-i386.iso.torrent 21 KB
ubuntu-8.04-server-i386.jigdo
ubuntu-8.04-server-i386.list
ubuntu-8.04-server-i386.template

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wubi.exe 1141 KB

Posted on 24 April '08 by admin, under English, Humor Thing, Linux, Podcast Thing. .

Encyclopaedia Britannica WebShare

Encyclopædia Britannica International Chinese Edition, of 20 volumes of which the 19th and 20th volume are index, is published by Encyclopedia of China Publishing House.Image via Wikipedia

Encyclopedia Britannica is trying to change it’s way of business. Britannica is opening it’s resources to web publishers, bloggers who publish regularly. Even that program has a name “Encyclopaedia Britannica WebShare”. We’ll see in near future that will the WebShare program succeed or not but I’ve to remind you that the Google & Wikipedia thing is the big mambo jambo gorilla in business with stating 186:1 page view ratio. [link]

Everyone is not eligible for publishing the content via web widgets, you must be eligible for that. Want that, give it a shot here.

Motto like statement of Britannica:

Just fill out the form below, and we’ll get back to you shortly. If you qualify, we’ll send you instructions for getting access for a year to Britannica.com, which includes the Encyclopædia Britannica and many other sources of rich, reliable and high-quality information..

Here comes a epistemological question “Is it possible to say that, the situation of quality of information (and/or knowledge)” exists? And how can it be defined? If it exists who will compare it or who will decide the state of quality?

You can see a widget of Britannica online down here:

Posted on 20 April '08 by admin, under English, Scientific Thing. .

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