Category: Research

This paper presents the simulation of energy harvesting systems, focusing on the integration of renewable energy sources like wind turbines and solar panels to generate electrical power. The simulation encompasses various components and subsystems, including turbine blades made of glass fiber- reinforced polymer (GFRP), a 10-stage voltage multiplier for voltage boosting, a permanent magnet generator...

This study explores the contemporary shift away from traditional farming practices in various region, including urbanized countries like the Philippines, leading to an increased reliance on imported food. The focus of this research is AUTOGROW, an innovative plant box designed to address space constraints in urban environments. Serving as an indoor garden, AUTOGROW utilizes advanced...

Monitoring water quality is essential to guaranteeing the well-being and security of human populations as well as ecosystems. This study uses Internet of Things (IoT) devices, and sensors to investigate cutting-edge approaches and technologies for real-time water quality monitoring. It is possible to continuously detect important factors like temperature, TDS, and turbidity by establishing a...

Fuel cells, particularly in high-voltage applications, benefit from DC-DC converters that deliver higher output voltage and lower input current ripple to enhance efficiency, prolong lifespan, and improve reliability. This investigation presents a quasi-Z source DC-DC voltage regulator with a new voltage doubling unit. The voltage regulator implements a new current-controlled source (CCS) voltage doubling structure....

Offshore jackets are essential structures in the energy sector, including wind farms and oil and gas activities. The experiment involves welding a 72 mm K-bevel S355 KT-40 plate with gas-shielded flux-cored arc welding (FCAW-GS) in a horizontal position. Evaluate welds using microhardness, tensile strength, Charpy impact toughness at −40 °C, crack tip opening displacement (CTOD)...

—Astronomy explores celestial bodies and the laws that govern the universe, but its abstract concepts often challenge students’ understanding and interest, leading to disengagement. Traditional teaching methods often fail to convey effectively the vastness of astronomical concepts. This study developed and evaluated a Virtual Reality (VR)integrated teaching material for Grade 9 Science, focusing on its...

In laser-arc hybrid welding, the selection of welding parameters is crucial for achieving excellent mechanical properties of weld joints. In this paper, based on the experimental data of laser-arc hybrid plate butt welding, a BP neural network was employed to establish a prediction model between the hybrid-welding process parameters, namely welding current I/A, laser power...

Underwater monitoring technology plays a crucial role in studying aquatic life, particularly in mangrove ecosystems, which are vital to marine biodiversity. Traditional survey techniques for assessing fish diversity and habitat health in rural Philippine mangrove ecosystem rely on manual methods such as traps, netting, hook-and-line fishing, hand-catching, and visual observations. These methods also involve measuring...

The configuration of the active gate driver (AGD) significantly impacts how well power semiconductor devices work and how efficient they are. This research presents a new AGD single chip design that identifies the Miller plateau when the signal is turning on and off by utilizing a two-level Miller detector precisely. Moreover, it includes a power...

This study aimed to develop Technological Pedagogical Content Knowledge (TPACK)-based lesson exemplars for 21st Century Literature of the Philippines and the World (21st CLPW) and investigate teachers’ perceived manifestation of their knowledge of content, pedagogy and technology and their extent of utilization of technology tools and strategies in the online teaching of literature. It used...