American Laboratory 

About: American Laboratory is an academic journal. The journal publishes majorly in the area(s): Gas chromatography & High-performance liquid chromatography. It has an ISSN identifier of 0044-7749. Over the lifetime, 1287 publications have been published receiving 7263 citations.

Photoionization mass spectrometer

Abstract: A monitor that can detect at least one trace molecule in a gas sample. The monitor may include a photoionizer (102) that is coupled to an electron-ionization mass spectrometer (100). The photoionizer (102) may ionize the gas sample at a wavelength(s) which ionizes the trace molecules without creating fragmentation. The inclusion of the electron-ionizer (106) may allow alternate or additional ionization to detect trace molecules not ionized by the photoionizer (102). The gas sample may be ionized at atmospheric pressure which increases the yield of the ionized trace molecules and the sensitivity of the mass spectrometer (100).

Quantified Maximum Entropy

Abstract: This tutorial paper discusses the theoretical basis of quantified maximum entropy, as a technique for obtaining probabilistic estimates of images and other positive additive distributions from noisy and incomplete data. The analysis is fully Bayesian, with estimates always being obtained as probability distributions from which appropriate error bars can be found. This supersedes earlier techniques, even those using maximum entropy, which aimed to produce a single optimal distribution.