The ripeness level of oil palm Fresh Fruit Bunches (FFB) is a determining factor for the quality of Crude Palm Oil (CPO). The method of sorting FFB before entering the boiling process is generally done manually which is destructive and subjective. Imaging methods have emerged to address this problem. This research aims to develop a computer imaging system based on LED lights and color filters f…
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The development of digital technology has driven a major transformation in the manufacturing industry. This study designed and built a prototype of an automatic loosed fruits sorter based on a camera and Arduino Uno. The system consists of two main components that are integrated with each other, namely the detection system and the automation system. The detection system includes the preparation…
Ferroelectric materials are thin-film dielectric substances widely used in electronic devices such as sensors, capacitors, and memory due to their ease of modification and permanent properties. This study aims to synthesize and analyze thin films of (0.3)BaTiO₃-(0.7)BaZr₀.₅Ti₀.₅O₃ (BT-BZT) doped with pineapple peel extract and tantalum at concentrations of 0.5 wt%, 1.0 wt%, and 1.5 …
Cabbage (Brassica oleracea var. capitata) waste a by-product of agricultural activities and vegetable distribution, has potential to be utilized as a raw material for activated carbon in the fabrication of supercapacitor electrodes. This study aims to synthesize and characterize carbon electrodes derived from cabbage waste using potassium hydroxide (KOH) as a chemical activating agent with vary…
This research focuses on the preparation of activated carbon from the biomass of matoa (Pometia pinnata) fruit skin with a variety of electrolyte solutions to improve the performance of supercapacitor electrodes. The main objective is to develop activated carbon as an electrode material for supercapacitor applications. Its physical and chemical properties were characterized using X-ray diffract…
This research aims to examine the potential and quality of groundwater in Perhentian Marpoyan Village, Marpoyan Damai District, Pekanbaru City, using the geoelectric resistivity method with the Wenner-Schlumberger configuration to identify subsurface structures and detect aquifer layers. The collected data were processed using Res2Dinv software to produce a two-dimensional resistivity mode…
The global energy crisis and environmental degradation caused by fossil fuel utilization have driven innovation in more environmentally friendly energy storage technologies, one of which is the supercapacitor. This study explores the potential of bilimbi fruit (Averrhoa bilimbi L.) as a source of activated carbon as well as a natural electrolyte material in symmetric supercapacitors. Bilimbi fr…
Physics is one of the fields of study in the curriculum, physics is important to be taught in formal schools because it is closely related to natural phenomena that are useful for solving problems in everyday life. Physics is knowledge science Which in essence oriented on symptom nature and emphasizes the aspects of the process, products, and attitudes of science. So far physics has often consi…
Survey results of needs analysis indicate that there are various problems and difficulties in learning physics. Topics such as temperature and heat are considered difficult for students to understand. Conceptual understanding has not been fully optimized in the learning process. Only 23% of 50 students at MAS Islamiyah Gunung Raya frequently and effectively express physics concepts in their own…
UV-Vis spectrophotometers have been used widely and are commercially available. However, the weakness of the technique is that the price isrelatively expensive. Therefore, low-cost analytical instrument with high resolution are needed, especially visible light spectrophotometers. This research was carried out with a working principle that resembles a visible light spectrophotometer using simple…
The increase in global energy consumption is one of the impacts of the rapid growth of the industrial sector. This condition encourages the need for the development of sustainable alternative energy sources such as supercapacitors that can be made by utilizing biomass waste as raw material for renewable energy storage, one of which is pineapple stem waste. Pineapple stem was chosen because it h…
Natrium doped ZnO nanorods were successfully grown on FTO substrates using the seed mediated hydrothermal method. The growth of the ZnO nanorods was carried out with variations in growth time of 5, 6, 7, 8, 9, 10, and 11 hours, using a concentration of 2% NaOH relative to the total solution volume. This research was conducted to investigate the physical properties of natrium doped ZnO nanorods…
The quality of education of a nation should have a learning process that trains the mindset of the community. In the learning process, student activity is the main focus of a teacher's attention, but not all teachers are able to carry out learning that can be centered on students. The learning that is widely applied is conventional learning. In conventional learning, teachers have an active ro…
Science education is a process of understanding science that discusses the field of science. In the material of temperature, heat and expansion, the use of teaching aids becomes a learning medium that can help students achieve learning objectives. The use of teaching aids as a learning medium is still very rare. Teachers usually only use learning media in the form of books and whiteboards. The …
Science literacy is an ability needed in 21st century education so that students are able to face challenges and make the right decisions in the future by understanding existing scientific and technological advances and producing science products as a solution to solving problems in real life. Based on the literature review, the science literacy skills of students in Indonesia as shown in the 2…
Creative thinking is one of the 21st century skills that students must have in order to be able to solve problems and be able to adapt to the times. Therefore, efforts are needed from educators to facilitate students to become qualified graduates and be able to compete globally. Based on the literature review conducted, it shows that students' creative thinking skills are still low, this is evi…
Pesticides, particularly malathion, on organophosphate-based insecticides, is commonly used in the agricultural sector to control pests on food crops. However, the use of these harmful chemicals can pose risks to human health. This study aims to detect malathion pesticide residues on water spinach using sensor materials in the form of gold nanobipyramids (GNBP) and GNBP modified with copper (Cu…
This study aims to analyze aquifer zones and groundwater quality in Sialang Sakti Village, Tenayan Raya District, Pekanbaru City, Riau Province, using the Schlumberger configuration geoelectric method and the geochemical method. The geoelectric method is used to identify subsurface resistivity characteristics related to groundwater presence, while the geochemical method is employed to test wate…
Groundwater is a very important natural resource for human life, especially in areas with limited access to surface water. Identification and mapping of aquifer zones are important steps in ensuring the availability of quality and sustainable groundwater. This study aims to analyze the characteristics of aquifer zones in Sialang Sakti Village, Tenayan Raya Subdistrict, using the Wenner configur…