14 research outputs found

    Health of students - future teachers - is an important and urgent medical and social problem

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    One of the most important strategic objectives of the government is to preserve and promote the health of citizens. However, the past decades have seen a deterioration of health of the Russian population, in particular children and adolescents [1]; students of higher and secondary educational institutions are no exception. Whereas much attention is paid to the evaluation of health of high school students, students of secondary vocational schools receive much less attention, and this is absolutely true for students of teacher training colleges. [2

    Low-power gas sensor on nanostructured dielectric membrane

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    The article presents a technology for manufacture of a gas sensor with a two-layer nanostructured dielectric membrane on a silicon substrate and its characteristics. Selection of the correct mathematical model ensures a good correlation between the experimental and calculated current-voltage characteristics of the sensor and makes it possible to evaluate the effect of porosity of the dielectric membrane on the value of the sensor’s power consumption, temperature of its sensitive layer and the related thermomechanical stresses. It demonstrates that the temperature range (150—350 °C) of the sensor’s sensitive layer, where the sensor’s response to 1 ppm CO is detected, is ensured due to power consumption from 5,0 mW up to 15,5 mW

    Low-power gas sensor on nanostructured dielectric membrane

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    The article presents a technology for manufacture of a gas sensor with a two-layer nanostructured dielectric membrane on a silicon substrate and its characteristics. Selection of the correct mathematical model ensures a good correlation between the experimental and calculated current-voltage characteristics of the sensor and makes it possible to evaluate the effect of porosity of the dielectric membrane on the value of the sensor’s power consumption, temperature of its sensitive layer and the related thermomechanical stresses. It demonstrates that the temperature range (150—350 °C) of the sensor’s sensitive layer, where the sensor’s response to 1 ppm CO is detected, is ensured due to power consumption from 5,0 mW up to 15,5 mW
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