Toward More Reliable Analytic Thermochemical-equilibrium Abundances

Toward a More Reliable Morphological Data Set for Phylogenetic Reconstruction

For decades, the relationships between different species have been discerned by way of a set of observable characteristics. Based on the similarity of certain observables, two species could be grouped together, along with other organisms that shared the same features. By these methods, scientists constructed a hierarchy of life. Taxonomy is the name given to the study and organization of differ...

Toward a More Reliable Theory of Software Reliability

36 Computer Toward a More Reliable Theory of Software Reliability S oftware development and testing is an error-prone process. Despite developers’ best attempts at checking every detail, errors made during development often cause postrelease software failures. Software reliability theory is one of industry’s seminal approaches for predicting the likelihood of software field failures. Unfortunat...

ThermInfo: Collecting, Retrieving, and Estimating Reliable Thermochemical Data

Standard enthalpies of formation are used for assessing the efficiency and safety of chemical processes in the chemical industry. However, the number of compounds for which the enthalpies of formation are available is many orders of magnitude smaller than the number of known compounds. Thermochemical data prediction methods are therefore clearly needed. Several commercial and free chemical data...

Toward Reliable Power Electronics

Neutrino decay and the thermochemical equilibrium of the interstellar medium

We calculate the thermochemical equilibrium of the diffuse interstellar medium, including ionization by a photon flux Fν from neutrino decay. The main heating mechanism considered is photoelectrons from grains and PAHs. For the studied range of Fν values, there always exists two regions of stability (a warm and a cold phase) that can coexist in equilibrium if the thermal interstellar pressure i...