Céondo - Fluid Phase Equilibria, Chemical Properties & Databases

For the prediction of chemical properties with Cheméo I am using an open-source tool named Ketcher.

The first version of the Cheméo API is available.

At the moment, this is in fact 357,266 pure compound properties that are evaluated.

Short but important notice.

Some days ago, I enjoyed a very nice discussion with a couple of persons, the majority of them not having programming as their main center of interest.

It was with a great pleasure that I gave a talk on the uncertainties in the prediction of chemical/physical properties using group contribution methods at the combined PSE2015/ESCAPE25 conference.

This is technical piece of information for the security and privacy conscious people communicating with us.

When you are predicting properties on Cheméo, the system is automatically looking in the database for a matching molecule.

It is now possible to predict the Octanol/Water partition coefficient (logP) using the Crippen method and the McGowan volume on Cheméo.

Just around the corner of Céondo offices, we have a big refinery, in fact, this one of the biggest in Germany, BP Gelsenkirchen.

Spring is here and Easter too.

The Cheméo crawler is working, working, working.

The logP or Octanol/Water partition coefficient is now available for nearly all the molecules on Cheméo.

The main problem of the chemical database is that they are slow.

It took a month longer than planned, but I must say, I am really happy to have Cheméo back online!

As you can see on the attached screenshot the new Cheméo will include property plot of the temperature and pressure dependent properties.

If you are wondering, here is a quick log about the relaunch of Cheméo.

7 years, it has been 7 years since I created this website and it did not change for the last 7 years.

Just for your information, my emails have been bouncing a bit in the past few weeks.

Backup, backup, backup.

Reminder, the end of life of Indefero hosting was reached on the first of July 2013.

Wed May 15 11:53:09 UTC 2013: Hello, we have a routing issue between the frontend and the backend database of Indefero.

Reminder: The Indefero hosting will stop June 30 this year, yes, 2013.

Thu Apr 11 07:27:29 UTC 2013: There is a pretty serious update of PostgreSQL to be done for security reasons.

Wed Mar 6 16:21:45 UTC 2013, we have an electrical issue, for the moment Indefero is down, it will come up as soon as the electrical issue is resolved.

Mon Jan 21 14:22:30 UTC 2013 A large array of servers are down in our datacenter.

Our provider has some issues.

5 years, the time is flying.

I happily participated at the CAPE-OPEN European Conference in Lyon.

Very good news, after a lot of discussion (because I want to be sure of the quality of the offer) the Indefero hosting offer will continue as it will be taken over by a small companies already used to work with hosting data and user information under stri…

Front matters: This is the email I sent to all the current users of the hosting offer.

The [Indefero|http://indefero.net] SSL certificate expires today, it will be renewed during the afternoon, normally the update is performed without downtime.

Please accept our sincere apologizes but the creation of new Indefero forges will be suspended this week while the website will be updated.

I am sorry for the unscheduled downtime this morning, Friday 25th of May around 8 am UTC.

A small notice to inform you that Elveos.org is using Indefero: Elveos.org is a crowdfunding website for open source software.

Can you remember the old days?

If you noticed a slow down in the past minutes, one of the routers of our provider had some issues.

At the moment, we move a bit the VMs (Virtual Machines) powering up our PaaS (Platform as a Service).

For your information, we are in the process of migrating Indefero's main backup server on our new infrastructure.

As a nice end of the year present, Cheméo is now running on Céondo's private Platform as a Service (PaaS).

Few days ago Cheméo's laboratories went life.

If you are building your private PaaS and use ZeroMQ you will end up with the issue of distributing the ZMQ end points of your services to your application.

Improving the speed of Indefero is challenging as it requires managing a lot of moving parts, from the git/subversion backends to the database.

To run a service like Indefero, you need to log a long list of metrics to follow the load on the system, find the bottlenecks and predict the future needed capacity.

Around 11:14 UTC today one switch of the private network went down and required a reboot.

Hello, just to let you know that today November 11, the database migration is starting.

The Decane is a simple molecule but also the name of our new database server.

In the past 24h, I have been testing the latest developer version of Indefero on projects.ceondo.com and I must say, I am pretty pleased by the stability of everything.

Today, the 27 of September, around 23h00 Paris/Berlin time some of the background processes of Indefero will not run.