Aide à la Physique Chimie au Lycée

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Aide à la Physique Chimie au Lycée

http://www.nmrdb.org/predictor

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NMR Predictor

NMR Predictor

This page allows to predict the spectrum from the chemical structure based on "Spinus". You may find more information on the authors website

NMR Simulator

NMR spectroscopy becomes quickly difficult to predict when second order simulation is observed. Here you can simulate the problems by entering the spin system you want to simulate, the chemical shift as well as the coupling constant. This project is the result the collaboration of Julien Wist (University of Cali, Colombia), Andres Castillo (University of Bogota, Colombia) and Luc Patiny (Ecole Polytechnique Federale de Lausanne, Switzerland).

If you use this tool please don't forget to cite us: Fast and Accurate Algorithm for the Simulation of NMR spectra of Large Spin Systems. Andrés M. Castillo, Luc Patiny and Julien Wist Journal of Magnetic Resonance 2011. 10.1016/j.jmr.2010.12.008


Mise à jour le Vendredi, 11 Janvier 2013 07:26
 

Pysatellites

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Pysatellites

source :

PySatellites est un simulateur 2D de trajectoires de satellites.

Il possède une base de données tirée de Xplanet pour étudier les mouvements autour de divers corps, comme des astéroïdes ou le soleil.

Les variables permettant d'étudier la loi de gravitation sont :

  • la masse du satellite
  • la masse du corps
  • la distance entre les centres
  • les vitesses radiales et orthoradiales de départ
  • le rayon du corps

De plus, on peut visualiser la vue depuis le satellite au cours d'une période grâce à une interaction avec xplanet

Téléchargement :

svn co svn://svn.tuxfamily.org/svnroot/oppl/pysatellites
paquet debian en version 1.0-2

 

Mise à jour le Mercredi, 26 Décembre 2012 11:44
 

orsa

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ORSA 0.7.0 released Jan 12 2005

We are releasing today ORSA 0.7.0. Source tarball, static Linux-i586 binary and Windows installer are already available. Changes include a rewrite of the Relativistic Corrections, Multipole Expansion (useful i.e. for low-Earth artificial satellites), texture support for all the Solar System planets (the textures can be downloaded automatically using the ORSA download tool), an URL with up-to-date GPS sats ephemeris, and the possibility to force the planets+Moon to the same position and velocity of the JPL ephemeris file. Check out the download page for more details.

Téléchargement : http://orsa.sourceforge.net/


http://orsa.sourceforge.net/screenshots/orsa-0.6.1/orsa-0.6.1.png

source : http://orsa.sourceforge.net/screenshots.html

 

Mise à jour le Dimanche, 16 Décembre 2012 17:23
 

GMAT

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NASA Goddard Space Flight Center is pleased to announce the release of the General Mission Analysis Tool (GMAT) Release 2012a Beta.  (Download Here:  Windows (Beta), Source).  R2012a is our feature-complete beta release in preparation for the first production release (non-beta) of GMAT scheduled for early 2013.   If you are interested or willing to help us in beta testing, please join the beta test mailing list. For a complete listing of new features, see our Release Notes.

GMAT is a space trajectory optimization and mission analysis system developed by NASA and private industry in the spirit of the NASA Vision.   GMAT is a collaboratively developed, open-source tool that enables the development of new mission concepts and provides capabilities that can improve current mission support in a transparent and verifiable way through release of source code.

The system has been used in support of the Lunar Crater Observation and Sensing Satellite (LCROSS), ARTEMIS (Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon’s Interaction with the Sun) , Lunar Reconnaissance Orbiter (LRO), the Magnetospheric Multiscale (MMS) Mission, and OSIRIS (Origins Spectral Interpretation Resource Identification Security Regolith Explorer).

This release was developed with contributions by Thinking Systems, Inc., and a.i. solutions, Inc.  GMAT is offered free of charge to use, modify, and share as described under the terms of the NASA Open Source Agreement v1.3.

For further information, please visit the project web site: http://gmat.gsfc.nasa.gov/. To receive future announcements, please subscribe to the project mailing list: https://lists.sourceforge.net/lists/listinfo/gmat-info

source : http://gmat.sourceforge.net/blog/?p=99


The images below are provided to give you a quick, intuitive understanding of what GMAT looks like from a user perspective. The images are screen captures made after running several missions.

SCREENSHOTS

R2012a screenshot: finite maneuver

R2012a screenshot: GEO transfer

R2012a screenshot: libration point

R2012a screenshot: lunar transfer

R2012a screenshot: Mars transfer

R2012a screenshot: proximity operations

Mise à jour le Dimanche, 16 Décembre 2012 16:58
 

ACD/C+H NMR Viewer

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ACD/NMR Processor Academic Edition

http://www.acdlabs.com/resources/freeware/nmr_proc/

Vous avez la possibilité de visualiser des molécules et le spectre RMN.

En choisissant sur la molécule un atome, vous repérez alors le pic qui lui correspond.

Vous pouvez choisir le type de carbone :
ou

On peut choisir d'observer que le groupe CH3, il ne reste alors plus qu'un pic.

 

 

 

Mise à jour le Mardi, 11 Septembre 2012 16:59
 


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