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The breakthrough of virtual reality technology could benefits humans, especially with the current technological achievement that we have nowadays. Nowadays, people started to use virtual reality more often, especially younger ones. Virtual reality (VR) can serve as an educational tool for students who have limited access to learning material out of their reach. The most common way to implement virtual reality is using the gamification method, in which using games as a way of learning. This article presents an in-depth study of the recent application of virtual reality in STEM-based learning. The study method is by reviewing the application of VR using different ways as its medium of delivery and how it is specifically used. The VR utilization can be done using applications, gamification method, and desktop based. [ABSTRACT FROM AUTHOR]

The payload design was focusing entirely on making it easy to install based on the given circumstances. The analysis was done to ensure that the drone frame can withstand the weight of the payload, with the structure designed to be as light as possible, while maintaining the strength to carry the load. Therefore, it is needed to determine whether the drone can hold on while having the payload with the given weight. The payload design needs to be easily secured on to the drone while being able to fit in all the necessary equipment for the air quality measurement system. Numerical Method is used to design and analyze using Finite Element Analysis (FEA) method for drone frame and the payload mount. The FEA method showed the amount of stress and strains on the critical part of the body frame, and it also provides the displacement result of the analysis when the payload is secured onto the drone frame. Based on the results, the study shows that the amount of stress and strain put on the mounting is within the tolerable limits at a maximum value of 4.086e+06 and 6.153e-04 for both stress and strain, respectively. [ABSTRACT FROM AUTHOR]

Unmanned aerial vehicles (UAV), commonly known as drones, are a perfect illustration of revolutionary equipment where it can now be used in geographical mapping instead of ground surveying and expensive traditional photogrammetry. The paper deals with the 3D model reconstruction of the new construction building. A complete aerial mapping of the area was carried out through the combination of aerial data collected with UAV and terrestrial data obtained with close-range photogrammetry techniques. The data acquired were then processed using digital photogrammetric software. This technique uses a sequence of 2-dimensional images to recreate a scene or an object's 3-dimensional structure. Combination of UAV and image processing can be used as a viable alternative to data collection to create 3D modelling of buildings or areas collected from aerial and terrestrial data. The results show the possibility of UAV technology for fast and reliable building 3D reconstruction to monitor the construction site. [ABSTRACT FROM AUTHOR]

With increased global interest in commercial and scientific concerns related to both oceans, there has been an increase in demand for the development of unmanned surface vehicles (USVs). Water monitoring technology has significantly improved the efficiency of water resource management. Stationary and portable water quality monitoring, as well as a movable surface vehicle, have expanded the use of on-site water measurements and monitoring in recent years. Traditional water measuring methods, which are usually carried out in laboratories, can only go so far in assisting decision-making in a timely and informed manner. This paper provides a comprehensive study of recent advancements in the application of Unmanned Surface Vehicles (USVs). A new method and components have been approached for water quality monitoring which is called Water Sensor Network that combines wireless waters sensor technology with Unmanned Surface Vehicle (USV). The USV consists of water quality sensors, a wireless communication system, and a mobility platform. [ABSTRACT FROM AUTHOR]

It is necessary to perform an evaluation of boat performance for the boat safety of a self-developed unmanned surface vehicle (USV) boat to perform an in-situ depth measurement remotely. This paper investigates the water flow around the boat by using numerical simulation. A steady flow of water around the boat is successfully simulated using the finite volume method (FVM). Results shows that that the water flow is steady and smooth along the surface of the boat without any disturbances that may affect the boat performance and drag force also is low for this USV boat. [ABSTRACT FROM AUTHOR]

Air quality issues are a common problem for our country, especially in urban areas and construction sites. It is crucial to monitor the current ambient air quality based on the guidelines and analyze the trends of air pollutants concentration. Access to data by stationary equipment and size is a significant challenge in the monitoring and measuring air quality. The current study aims to conduct field testing to ensure the reliability of the drone payload air quality measurement device (D-PAQ). This research used an Arduino-based sensor system fitted into a box mounted onto drones, and measurements can be taken freely without air quality measurement sites' restrictions. The findings show that the device can record all the necessary air quality monitoring, especially PM2.5 and PM10. It can be concluded that D-PAQ can be used as a new air quality monitoring device, especially at challenging reach areas such as construction sites. [ABSTRACT FROM AUTHOR]