Advances in the field of genomics have enabled computational analysis of metabolic pathways at the genome scale. Singular attention has been devoted in the literature to stoichiometric approaches, and path-finding approaches, to metabolic pathways. Stoichiometric approaches make use of reaction stoichiometry when trying to determine metabolic pathways. Stoichiometric approaches involve elementa...

Recently, hybrid organic−inorganic perovskites have emerged as promising photo-sensing materials for next-generation solution-processed phototransistors, achieving high responsivity, detectivity, and fast response. Here, a phototransistor that can detect visible light using low-cost, solution processed methylammonium lead iodide/zinc oxide (CH3NH3PbI3/ZnO) heterostructure is reported. While typ...

we report the development of different types of oxygen sensors based on yittria-stabilized zirconia (ysz) as a solid electrolyte. the conventional oxygen sensor is a concentration cell with two porous pt electrodes, one of which is exposed to air as a constant (reference) oxygen concentration and the other is exposed to automobile exhaust gas of variable oxygen concentration, depending on the a...

Low cost single stoichiometric target sputtering of Cu2ZnSnS4 (CZTS) precursor has been adopted to fabricate CZTS solar cells. The effect of a series of deposition pressures and deposition durations on the device performance has been investigated. A 3.74% efficient solar cell has been achieved at a base pressure of 1 × 10−4 Torr with a stoichiometric target, which to the authors’ knowledge, is ...

3.1 Kinetic models and their dynamic behaviour in a nutshell Examples: Metabolic network; transport reactions; signaling system; gene expression Stoichiometric coefficients nir Stoichiometric coefficients denote the proportions, with which the molecules of substrates and products enter the biochemical reactions. One can summarise the stoichiometric coefficients in a matrix N. The rows refer to ...

Hybrid halide perovskites such as methylammonium lead iodide (CH3NH3PbI3) exhibit unusually low free-carrier concentrations despite being processed at low-temperatures from solution. We demonstrate, through quantum mechanical calculations, that an origin of this phenomenon is a prevalence of ionic over electronic disorder in stoichiometric materials. Schottky defect formation provides a mechani...

A microkinetic model of the oxygen reduction reaction (ORR) on Pt(111) under a gaseous H2 and O2 atmosphere is used to predict and explain which compositions of H2 and O2 lead to the fastest rate of water formation for temperatures between 600 and 900 K. For a stoichiometric (2:1) mixture of H2 and O2 the rate-determing step is found to transition from O hydrogenation to O2 H dissociation over ...