ABSTRACT The quality of CPO (Crude Palm Oil) can be determined by an effective oil palm FFB (Fresh Fruit Bunch) grading process. Multispectral imaging offers less time image processing, with simple identification system, and low cost. Object detection method is acquired for FFB hence automatic and real-time grading can be achieved. This research aims to develop LED-based multispectral imaging …
ABSTRACT Activated carbon derived from empty palm oil fruit bunches in powder form has been successfully prepared. The initial preparation starts from taking the raw ingredients followed by the pre-carbonization combustion process using a furnace by varising burning time of 20 minutes, 30 minutes, 40 minutes and 50 minutes. Neutralization and grinding processes are carried out on the charcoal …
ABSTRACT Geoelectric is a geophysical method used to determine the geological conditions of the earth's subsurface based on the variations of rock resistivity value. Interpretation of the aquifer layer is carried out on 2 paths with a length of 300 meters each. The lithology of the study area consists of layers of clay, peat, clay, sand, coarse sandstone, dry gravel, mudstone, limestone, t…
ABSTRACT Activated carbon from palm frond biomass in powder form has been successfully prepared. The purpose of this study was to obtain activated carbon with the optimum surface area and time for analyzing CO2 absorption potential. The initial preparation started from drying the basic ingredients followed by the pre-carbonization process using a furnace with a variation of burning time of 30 …
ABSTRACT Activated carbon from coconut shell biomass in powder form has been successfully prepared. The purpose of this research is to obtain activated carbon with the optium surface area and time in analyzing the CO2 capture potential. The initial preparation starts from taking the basic ingredients followed by the pre-carbonization process using a furnace with a variation of burning time of …
ABSTRACT Supercapacitors are energy storage devices that have high power density and high energy density. One of the main components in a supercapacitor cell is the electrode. In this study, carbon electrodes were made from weed root biomass by optimizing multiple chemical activations with various concentration variations to obtain high specific capacitance. The grass root biomass was synthesi…
Metamaterials are artificial materials with unique characteristics (negative refractive index) and high resonance sensitivity. The use of metamaterials as an advanced technological breakthrough has a very high and broad potential because the material and its structure can be updated. Pure metamaterial structures such as a split ring resonator (SRR) have been implemented to improve the performan…
Pendidikan merupakan salah satu aspek yang sangat penting dalam kehidupan. Melalui pendidikan, manusia mendapatkan ilmu pengetahuan yang dapat digunakan untuk menciptakan berbagai perkembangan, yang dapat memenuhi kebutuhan bertahan hidup. Pentingnya pendidikan melahirkan inovasi-inovasi baru dalam dunia pendidikan guna mencapai tujuan pendidikan tersebut. Salah satu inovasi yang perlu dilakuka…
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Design of an LED-Based Multispectral Imaging System as a Light Source for Classification of Ripeness Levels of Oil Palm Fresh Fruit Bunches, supervised by Minarni and Rahmondia Nanda Setiadi. The ripeness level of oil palm fresh fruit bunches (FFB) is an important factor in determining the quality of palm oil. Quality and high-quality palm FFB has a low Free Fatty Acid (FFA) content so th…
Utilization of solar energy is converted into electrical energy using conversion devices, namely solar cells. So far the development of solar cells has undergone three generations. The development of third generation solar cell research achieves an efficiency of 14% for Dye Sensitized Solar Cells (DSSC). DSSC is a solar cell that has high potential and is environmentally friendly. Photoanod…
Student learning motivation is very important in the learning process. If student motivation is high, then students will show high behavior and enthusiasm in carrying out learning activities. Conversely, if student learning motivation is low, then students will show behaviors such as indifferent, easily tired and bored in learning. This certainly affects student learning outcomes and student le…
The results of the questionnaire on students' perceptions of guided inquiry learning showed an average score of 47 in the sufficient category. In addition, the results of the questionnaire on students' perceptions of collaboration ability showed an average score of 39 in the less collaborative category. The results of the questionnaire on students' perceptions of scientific attitudes also showe…
This study aims to obtain improved cognitive learning outcomes of students through applying a guided inquiry model using KIT mechanics on harmonic motion material. This research uses Quasi-Experiments or Pseudo-Experiments. The research design used in this study was postest only nonequivalent control group design. In the use of this design, a comparison of the experimental group and the control…
The survey results stated that there are various problems in learning physics. Physical materials such as waves are considered as learning that is difficult for learners to understand. Learning outcomes in aspects of science process skills (KPS) have not been optimally empowered. Only 22% of the 50 students of SMA Negeri 5 Pekanbaru have KPS in the high and very high categories. In addition, st…
Literacy is an important part of an educational process. Literacy is divided into six types, one of which is scientific literacy. Scientific literacy skills as measured through several international programs, such as PISA and TIMSS, show that Indonesian students' scientific literacy abilities are still at the lowest level, even having decreased from the previous period. Scientific literacy abil…
One of the challenges in learning during the 4.0 revolution, especially physics subjects, is how teachers can package interesting content and learning materials and can make it easier for students to understand the concepts. Students in physics learning still tend to have a low understanding of concepts, so most when students gain experience with concept mapping tests, many experience misconcep…
Specific skill demands that need to be empowered in learning activities that must be possessed are creative thinking skills, problem solving, collaboration, and various other skills (Zubaidah &; Malang, 2016). This research was motivated by the initial ability of student collaboration and student creativity is still low. This is also strengthened by the post-pandemic with a long online learning…
21st century skills in the national education system are a much-discussed issue. 21st century skills include communication, collaboration, critical thinking and creativity. These four skills are mandatory for 21st century students. This is expected to be a provision for students to live life in the future. 21st century skills are closely related to the demands of the world of work. A person wil…
Vocational High School students should have skills or skills according to their interests and talents for the major they choose. Physics is one of the supporting subjects for productive subjects in Vocational High Schools. But in reality, class X students of Fishing Vessel Engineering (TKPI) SMKN Fisheries in Riau Province, rarely do experiments, are not actively involved in the learning proces…