In this paper, smoke sensing property of pellets, fabricated from multiwalled carbon nanotubes (M... more In this paper, smoke sensing property of pellets, fabricated from multiwalled carbon nanotubes (MWCNTs) (w: w) reinforced with Portland cement has been demonstrated; so as to explore their feasibility as an embedded smoke sensor for civil structures. DC transient response depicted increase in their electrical conductivity when exposed to smoke. The increase in responsivity of the pellets under smoke was found in the range 26-46 % depending upon the MWCNTs content. Ac impedance spectroscopy performed at room temperature under ambient and smoky environments over a frequency range 100 Hz - 2 MHz has demonstrated a gradual increase in the ionic conductivity with frequency for all composites. This increase in ionic conduction was also found to be assisted with an increase in the percentage of MWCNTs. The sensing mechanism has been explained on the basis of electrical conduction due to a combination of flow of ions present and the conductive carbon fibers in series present in the porous m...
In the contemporary world, visual elements play a pivotal role due to the prevalence of virtual o... more In the contemporary world, visual elements play a pivotal role due to the prevalence of virtual opportunities and information technology. Consequently, television and videos have not only become sources of entertainment but also tools that are actively harnessed across various domains of human activity, including education. The utilization of audio-visual aids has emerged as the most effective approach for enhancing teaching outcomes and facilitating the optimal dissemination of knowledge. Therefore, it is undeniable that technological devices wield a substantial influence, contributing to a dynamic and impactful information system. This research endeavour aimed to assess the efficacy of audio-visual aids in the educational process at the university level. To achieve this objective, a questionnaire was devised as the primary research instrument for gathering insights from students. The study was conducted within the context of lecture classes in the Moradabad district, UP. A total o...
In this paper, smoke sensing property of pellets, fabricated from multiwalled carbon nanotubes (M... more In this paper, smoke sensing property of pellets, fabricated from multiwalled carbon nanotubes (MWCNTs) (w: w) reinforced with Portland cement has been demonstrated; so as to explore their feasibility as an embedded smoke sensor for civil structures. DC transient response depicted increase in their electrical conductivity when exposed to smoke. The increase in responsivity of the pellets under smoke was found in the range 26-46 % depending upon the MWCNTs content. Ac impedance spectroscopy performed at room temperature under ambient and smoky environments over a frequency range 100 Hz - 2 MHz has demonstrated a gradual increase in the ionic conductivity with frequency for all composites. This increase in ionic conduction was also found to be assisted with an increase in the percentage of MWCNTs. The sensing mechanism has been explained on the basis of electrical conduction due to a combination of flow of ions present and the conductive carbon fibers in series present in the porous m...
In the contemporary world, visual elements play a pivotal role due to the prevalence of virtual o... more In the contemporary world, visual elements play a pivotal role due to the prevalence of virtual opportunities and information technology. Consequently, television and videos have not only become sources of entertainment but also tools that are actively harnessed across various domains of human activity, including education. The utilization of audio-visual aids has emerged as the most effective approach for enhancing teaching outcomes and facilitating the optimal dissemination of knowledge. Therefore, it is undeniable that technological devices wield a substantial influence, contributing to a dynamic and impactful information system. This research endeavour aimed to assess the efficacy of audio-visual aids in the educational process at the university level. To achieve this objective, a questionnaire was devised as the primary research instrument for gathering insights from students. The study was conducted within the context of lecture classes in the Moradabad district, UP. A total o...
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