Developing Public speaking skills of undergraduate senior students for academic purposes

Related works on monitoring Air quality of cities
The most important indication of air quality is particle concentration. Outdoor particle concentration measurements are becoming more and more crucial for determining risk to human life. The amount of study being done to determine the best option is continuously increasing. In grid stations, the primary monitoring method for tracking air quality is beta-ray technology. Following the measurement, the PM2.5 and PM10 concentrations are shared with the public over the internet along with the air quality index. The drawback is that, depending on the beta-ray device's data output period, particle concentration updates relatively slowly. Additionally, because the cost of the beta-ray instrument is too costly, the dispersion of grid stations built is insufficient for comprehensive monitoring throughout the city. Continuous air quality monitoring is becoming more and more necessary as internet+ applications become more common and the idea of "smart city development" gains popularity. It is desired that as many areas as possible be measured accurately, and that several apps and websites have access to real-time data.
Ferdoush in his work presents a generic environmental monitoring platform based on permanent interior sensors. It makes use of open-source hardware such as the Arduino and Raspberry Pi, as well as the ZigBee wireless communication standard. Sensing nodes, a web interface, and a base station with an embedded gateway node, database, and web server make up the system[16].
Proposed Method
In our proposed method, the system is made up of an end-user layer, a monitoring system, database and a sensors network. The wireless Chemical Sensors Network will be created according to specifications of study location. The different types of sensors are selected to detect levels of hazardous gases such as sulfur dioxide (SO2), volatile organic compounds (VOCs), oxides of nitrogen (NO2 and NO3), ozone (O3), carbon monoxide (CO), and others. Up to four gas sensors detecting a group of volatile organic compounds (VOCs) or other toxic gases are included in sensor nodes along with a microcontroller. A power management controller can alternate between using a battery and a solar panel to power the node, and a ZigBee module is utilized for communication with the Gateway. ¹⁴ Wireless Network of Sensors is constructed to gather information from different location. This Gateway incorporates a ZigBee module that collects measurement data at the completion of each sampling cycle and sends it to the Servers,