Lecture hint: The operation of the LHC accelerator complex
Verfasst von ffeldhaus unter syndicated am 10. März 2010
Dr. Stefano Redaelli from CERN will hold two lectures on an overview of what happens when the LHC is in running mode. The lectures should be suitable for everyone with a bachelor or Vordiplom in physics or electrical engineering.They will take place in the CERN main auditorium at
- April 7, 10am-11am
- April 9, 10am-11am
More information can be found in the official announcement. If you happen to not be at CERN during that time, there will be also a webcast! As additional information on the webcast becomes available, I will post it here!
Resume (secure) copy
Verfasst von ffeldhaus unter syndicated am 11. Februar 2010
If you need to transfer big files, sometimes the network connection breaks down and you need to restart the transfer. Using the following command, you can start and resume (!) a file transfer:
rsync --partial --progress--rsh=ssh localFileusername@remoteMachine:remoteDirectory/
If you generally want to use the above command add the following line to your ~/.bashrc and just use the new scpresume command:
alias scpresume="rsync --partial --progress --rsh=ssh
Many thanks to Joen.dk who came up with the idea!
Using Time Machine to create backups on network volumes
Verfasst von ffeldhaus unter syndicated am 4. Januar 2010
If you ever wondered how to do a Time Machine backup to some NFS, AFS or SMB volume, here is the solution:
In the terminal (Terminal.app) enable Time Machine to use unsupported volumes:
defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1
Now you can use any mounted device! This is especially nice if you are working in a company or in a research group where you often already have some remote storage available.
Cisco-VPN with Mac OS X 10.6
Verfasst von ffeldhaus unter syndicated am 11. Oktober 2009
I needed to remotely log into our university network. Until now I was using the Cisco VPN Client, but after an upgrade to Mac OS X 10.6 (Snow Leopard) I couldn’t start the Cisco Client anymore. As Mac OS X 10.6 now natively supports Cisco VPN connections, I wanted to try it out. Here is a simple HowTo for the TU Dortmund VPN:
- If you have the Cisco VPN Client installed, uninstall it by executing the following command in the terminal:
sudo /usr/local/bin/vpn_uninstall
- Open System Preferences and go to Network
- Add a new entry with Interface VPN and Type Cisco IPSec
- Enter the access information e.g. Account Name (Accountname) and password (Kennwort). For the TU Dortmund it is your UniMail or MyITMC username / password.
- Click on Authentication Settings (Identifizierungseinstellungen) and insert the information which can be found here for the TU Dortmund.
- Click on Connect (Verbinden)
LHC restart 2009
Verfasst von ffeldhaus unter syndicated am 10. Oktober 2009
It’s not that easy to find the schedule for the LHC restart. If you also would like to know, when the first injection tests are made and when the first beam will be circling in the LHC, you can find up to date information here:
http://lhc-injection-test.web.cern.ch/lhc-injection-test/2009/injection-tests-2009.htm
As of today, the first injection test is planned for the 24th to 25th october. The first beam circulating in the LHC is expected for 19th November.
Programm für das Wintersemester 2009/10
Verfasst von ffeldhaus unter syndicated am 9. Oktober 2009
Nach dem anstrengenden letzten Semester und der langen Semesterferienpause geht es endlich wieder in eine neue Runde! Das Programm kann sich (mal wieder) sehen lassen dieses Semester, so dass alle daran ihren Spaß haben werden!
Folgendes werden wir spielen:
- Tschaikowsky: Ouvertüre zu Romeo und Julia
- Beethoven: Symphonie Nr. 7
- Bernstein: Suite aus West Side Story*
Da muss man doch nicht mehr überlegen, ob man in diesem Semester dabei ist, oder?
Los geht es am Dienstag, dem 20.10.2009, wie immer pünktlich um 19h (also kurz vorher zum Aufbauen) im Audimax.
Neue Mitspieler sind natürlich immer willkommen! Ob du neu an der Uni bist, immer schon mal vor hattest im Orchester zu spielen oder einfach eine neue musikalische Heimat suchst, komm einfach zur nächsten Probe! Unserem Dirigent Werner Seiss ist es wichtig zu betonen, dass Mitspieler nicht zwangsläufig an der Uni studieren oder arbeiten muss. Wir sind schon immer auch offen für externe Verstärkung!
Wir sehen uns am 20.10. um 19h, Euer
Orchesterrat
CERN at Google Streetview
Verfasst von ffeldhaus unter syndicated am 18. August 2009
Since today Google Streetview is available for Switzerland. It covers quite a few streets and among them is the road to CERN.
Here you can see the main entrance:
CERN Main Entrance
And here you can see the ATLAS building
… the CERN Globe:
LHCb Experiment:
Fonts in LaTeX
Verfasst von ffeldhaus unter syndicated am 11. August 2009
Ever searched for the right font in LaTeX? Then have a look at The LaTeX Font Catalogue! It lists several fonts with a preview and instructions how to include them into your document.
I really like the TeX Gyre Pagella font which is based on the Palatino font. Even if you need some handwritten or caligraphic fonts for LaTeX, have a look at the Font Catalogue!
LHC in The Daily Show
Verfasst von ffeldhaus unter syndicated am 6. Juni 2009
A bit late, but still a few people haven’t seen the funny report on the LHC and the end of the world in The Daily Show. Go ahead, watch it! Extra points for finding the reference to the Grid!
Changing the keyboard layout for Scientific Linux on a MacBook
Verfasst von ffeldhaus unter syndicated am 5. Juni 2009
I recently installed Scientific Linux in a virtual Machine on my MacBook and ended up with the Standard PC keyboard layout. As the keyboard layout of my MacBook has quite some differences, I tried to figure out how to get all the keys I’m used to.
Here’s what I did (following the advices given here):
- open the file /etc/sysconfig/keyboard and change it (for a german keyboard) as following
KEYBOARDTYPE="mac" KEYTABLE="mac-de-latin1-nodeadkeys"
- for other layouts than the german one have a look at /lib/kbd/keymaps/mac/all/ and choose one of the keytables listed there