The standard additions (SA) method is one of the most important calibration strategies in quantitative chemical analysis. It is a powerful tool to minimize matrix effects and enable precise and accurate determinations. On ...

Guía de ejercicios sobre estadística descriptiva. Glosario

Aim: To test the variability within and between subject of glycemic response test following the ingestion of a standard food. Material and methods: Glucose and insulin response of a standard meal (white bread) was performed ...

Aim: This study aimed to map the concentrations of limnological variables in a reservoir employing semivariogram geostatistical techniques and Kriging estimates for unsampled locations, as well as the uncertainty calculation ...

In this work we show the results of analysis of propagation of sound waves applied for an alert system in the river Chili, in Arequipa city. We used mathematical models, ISO standards, geographical, demographical and ...

This paper describes a novel high frequency ac voltage-regulator using a single ended primary inductance converter as power stage, and active power factor correction through the use of variable hysteresis control technique. ...

The accuracy of nutritional diagnoses can enable the definition of the best set of standards by the method of nutritional composition diagnosis (CND) in sugarcane. In this sense, the purpose of this study was to perform ...

En este trabajo se presentan los fundamentos, diseño, construcción y prueba del sistema de cifrado de imágenes con la metodología AES (Advanced Encryption Standard) y la función de permutación Variable SEIAES PV. El ...