This paper describes a gas spray cryostat for tensile tests, which can also be used with testing instruments where both the crosshead on the top and the hydraulic piston on the bottom are moving simultaneously. A twin tube is Air Jordan 7 Montreal used for the heat exchanger together with a ‘Thermocoax’ heater. This provides a short cooling and heating time during temperature change tests. The connexion between sample and load Air Jordan 4 Retro
cell is frictionless, without the commonly used seals, and therefore very small forces can be resolved. In order to avoid unwanted deformation of the specimen due to the thermal expansion of the connexion rod, the specimen length is measured and controlled directly.
The needle algorithm, based on a uniqueness test in target factor analysis, has been applied to several HPLC-DAD simulated data sets in both chromatographic and spectral directions. Information regarding the number of analytes in the system, the presence of minor compounds, the location of peak maxima and eventually some characteristics of the spectral shapes have been obtained. The location of peak maxima has also been used as a starting point to build a new kind of initial estimates to be input in iterative curve resolution methods, such as ALS (alternating least squares). The resolution results have been compared with the ones computed using initial estimations based on evolving factor analysis.