Spectra

There is much more information in a stochastic non-Gaussian or deterministic signal than is conveyed by its autocorrelation and powerspectrum. Higher-order spectra which are defined in terms of the higher-order moments or cumulants of a signal, contain this additional information. The... Platforms: Matlab

Meep (or MEEP) is a free finite-difference time-domain (FDTD) simulation software. Meep FDTD is a free finite-difference time-domain (FDTD) simulation software package developed at MIT to model electromagnetic systems, along with our MPB eigenmode package. Here are some key features of "Meep... Platforms: *nix

The award-winning periodic table of the elements for the Macintosh. In addition to the usual information found in such programs, The Atomic Mac also contains a wealth of nuclear information on each isotope, including half life, decay mode, and daughter products. No other periodic table of the... Platforms: Mac

The goal of this project is to build a common toolkit of CFMX components used in most cms apps. These pieces can all be used together or separately. Some of these components may look familiar many where inspired by the macromedia spectra product. Platforms: Windows, Mac, *nix, ColdFusion, BSD Solaris

peak-o-mat is a curve fitting program aimed at the fast and easy fitting of spectroscopic data, especially if you face a large amount of similar spectra. Platforms: Windows, Mac, Linux

Tools for mass spectrometry, especially for protein mass spectrometry and proteomics: Quantification tools, converters for Applied Biosystems (Q Star and Q Trap), calculation of in-silico fragmentation spectra, converter for Mascot result files Platforms: Windows, Mac, Linux

matplotlib is a python 2D plotting library which produces publication quality figures in a variety of hardcopy formats and interactive environments across platforms. matplotlib can be used in python scripts, the python and ipython shell (ala matlab or mathematica), web application servers, and... Platforms: Windows, Mac, *nix, Python, BSD Solaris

PyVib2 is a program for analyzing vibrational motion and vibrational spectra. It is an open source 'all-in-one' solution for scientists working in the field of vibrational spectroscopy (Raman and IR) and vibrational optical activity (ROA and VCD). Platforms: Windows, Mac, Linux

This article consists of a brief discussion of the energy density over time or frequency that is obtained with the wavelet transform. Also an efficient algorithm is suggested to calculate the continuous transform with the Morlet wavelet. The energy values of the Wavelet transform are compared... Platforms: Matlab

These files are subroutines for importing and exporting files in the file format used by the Internet Site for European Strong-Motion Data (http://www.isesd.cv.ic.ac.uk). Raw_in imports uncorrected acceleration time-histories in ISESD format, Raw_out exports uncorrected acceleration... Platforms: Matlab

Web-based Electronic Laboratory Notebook (ELN) with integrated Chemical Inventory by the group of Prof. Goossen (TU Kaiserslautern, Germany), based on PHP/MySQL. Allows (sub-)structure search, reaction planning, management of spectra and literature. Platforms: Windows, Mac, Linux

PepArML: An unsupervised, model-free, combining peptide identification arbiter for tandem mass spectra via machine learning. Platforms: Mac, BSD, Linux

GaussSum parses the output of ADF, GAMESS, GAMESS-UK, and Gaussian to extract useful information: progress of geometry optimisation, UV/IR/Raman spectra, MO contributions and more. Features . Convolute UV-Vis spectrum . IR and Raman visualization Platforms: *nix

Allows you to see FITS files right into your Finder, without opening the file. It automatically generates on-the-fly a colorized header, with images and/or spectra below. It supports multi-extension FITS files. Even better, it detects ESO keywords, and build automatic links to the proposal... Platforms: Mac

X! Tandem open source is software that can match tandem mass spectra with peptide sequences, in a process that has come to be known as protein identification. This software has a very simple, sophisticated application programming interface (API): it simply takes an XML file of instructions on... Platforms: Mac

Educational astrometry utility for plotting stars on a Hertzsprung-Russel diagram. Useful for learning about stellar spectra and properties and performing spectroscopic parallax calculations, as found in many high school physics courses. Platforms: Windows, Mac, BSD, Linux

This framework facilitates short-time speech processing. A vector containing audio data samples is taken as input, the short-time Fourier transform (STFT) is then computed and the resulting complex spectrum is decomposed into magnitude and phase spectra. No modification is made in this 'hello... Platforms: Matlab

The package generates a feature table from a batch of LC/MS spectra in .cdf format. Instructions: http://www.sph.emory.edu/apLCMS/ References Bioinformatics. 25(15):1930-36. BMC Bioinformatics. 11:559. Platforms: Windows, Mac, BSD

This program estimates the background (or baseline) of optical spectra by the polynomial minimizing a cost function. If the cost function was quadratic, the solution is the least squares estimation, which is not appropriate in this problem. Instead, we need to use of non-quadratic cost function... Platforms: Matlab

Feature extraction toolkit based on a wavelet multiscalevision model. Includes 1D signal processing sample application for lineidentification and classification of astronomical spectra. Platforms: Windows, Mac, Linux