The demand for biosensor devices has increased in various commercial sectors and especially in research, particularly sensors capable of fast and reliable measurements. The detection of caffeine in coffee has been the subject of extensive research due to the increased consumption of food, beverages, and medications. Coffee consumption has become a lifestyle trend in society, often without consi…
Learning outcomes are learning activities that produce changes in knowledge, attitudes and behavior that are sustainable and dynamic and can be measured. The aim of this research is to determine the improvement in student learning outcomes through the application of the TGT type cooperative model assisted by Kahoot media in mechanical wave material in class XI SMA N 2 Singingi. This research us…
Fossil energy is widely used to produce electricity in Indonesia. Continuous use of fossil energy can have serious impacts on the environment, such as a decrease in resource reserves. The reduction of fossil energy can cause quite high electricity rates. To meet electricity needs in Indonesia, which are still very dependent on fossil energy, the use of renewable energy that’s still relatively…
Barium Zirconate Titanate has piezoelectric, ferroelectric and antibacterial properties making it an important composition in multilayer ceramic capacitors (MLCC).
The biosynthesis of zinc oxide nanoparticles (ZnO) is extensively studied because of its eco-friendly and simple method. Piper ornatum is abundant in Indonesia, and the phytochemical content of Piper ornatum leaves has the potential to be a reductor. The study aims to study the role of Piper ornatum in biosynthesis and the characteristics of the zinc oxide nanoparticles. The sample variations i…
The aim of this research is to determine the relationship between motivation and cognitive physics learning outcomes of students at SMP N 23 Pekanbaru class VII in temperature and heat lessons. The research method used is a quantitative approach because this research aims to obtain an overview of student learning motivation and student cognitive learning outcomes. Data collection was carried ou…
Physics learning is a teacher's effort to provide learning to students. The problem that students often face is the understanding of physics concepts that are still low. This is due to the use of learning models that have not been varied so that students' understanding of physics concepts is still low. Efforts to improve students' concept understanding can be applied through learning using the …
This research aims to developing learning media based on a generative learning model using the Articulate Storyline 3 application on the subject of vibrations and waves for valid junior high school students and determining the responses from user of this learning media. This type of research is research and development whichrefers to the ADDIE model. The research instrument is in the …
The aim of this research is to implement Project-Based Learning (PjBL) to enhance collaboration skills and creative thinking skills, as well as to determine the effectiveness of PjBL in improving these skills. The research method used is qualitative descriptive research with a Classroom Action Research (CAR) approach. The results indicate a significant improvement in collaboration skills and c…
The development of antenna technology is increasingly developing in medical sensor applications. The medical sensor antenna can be strengthened with a split ring resonator (SRR) metamaterial structure. Metamaterial is an artificial material that has high resonance manufacturing properties and this can potentially be implemented into microstrip antenna structures. This research aims to design, s…
Plastic waste is a global problem in everyday life that still requires further processing to overcome it. The plastic waste sorting system in Indonesia is still done manually using experience personnel to separate plastic wastes based on type. This research aims to classify plastic waste according to type using hyperspectral imaging method. There were three types of plastic waste samples used, …
Determining the ripeness level of oil palm Fresh Fruit Bunches (FFBs) using computer vision and machine learning has been extensively studied, especially using the YOLO (You Only Look Once) algorithm. Its applications are typically employed for detecting FFBs on trees or piled on the ground. However, the detection of stacked FFBs moving on a conveyor has yet to be done. The objective of this st…
Acacia pods is one of the biomass wastes that can be used as a basic material for porous activated carbon sources for supercapacitor carbon electrode materials. The supercapacitor carbon electrode from acacia pods waste is produced through the precarbonization stage, chemical activation using variations of KOH activators, ZnCl2, and without activation, where samples are coded AP-K, AP-Z, and AP…
Alternative approaches in biosynthesis have been applied to create ZnO nanoparticles with the aim of minimizing environmental impact. ZnO nanoparticles produced through the biosynthesis process show strong antibacterial properties, with high toxicity to bacteria but minimal impact on human cells. The aim of this research is to synthesize ZnO nanoparticles and analyze the impact of the volume ra…
Activated carbon is used in 80% of supercapacitor cells as an electrode material due to its high porosity, controllable porous structure, chemical stability, and high electrical conductivity. This study uses mangrove crab shells as biomass for activated carbon production with carbonization temperature variations of 600°C, 700°C, and 800°C. The carbonization aims to improve the performance of…
Hidroksiapatit (HAp) merupakan material keramik pada aplikasi biomedis yang memiliki rumus kimia Ca10(PO)6(OH)2 yang mengandung kalsium dan fosfat berperan sebagai mineral utama dalam penyusunan tulang dan gigi. TIDAK BISA MENAMPILKAN ABSTRAK SECARA KESELURUHAN
The excessive use of temephos pesticide will not only affect the desired target, but also affect non-targets such as the surrounding water ecosystem. To minimize this, gold nanoparticles have been made which are used as sensing materials for early detection of temephos. This study aims to synthesize and characterize bone-shaped gold nanoparticles (GBNRs) and analyze the potential of GBNRs as a …
Yellow bamboo stems (BK) have been claimed to contain the natural compound lignicellulose which can be used as an active carbon precursor for supercapacitor electrodes. An easy, environmentally friendly and low-cost research method through a series of integrated drying, crushing, chemical activation and pyrolysis processes. The focus of this research lies in the effect of KOH activator concentr…
Probability and expectation values play a significant role in explaining the existence and behavior of particles, such as electrons. This research aims to analyze the probability and expectation values of particles in a 3-D box in the case of degeneracy using the Romberg integration method. By focusing on the variation of principal quantum numbers ( and ) and different widths of the potential…
Supercapacitor performance is influenced by pore size and pore distribution on the electrode surface, high thermal conductivity and electrolyte ion size to achieve high specific capacitance values. Electrodes were synthesized from mangosteen (garcinia mangostana) leaf biomass through pre-carbonization, chemical activation, carbonization and physical activation processes. The samples were activa…