Abstract Dimethyl formamide (DMF) is an organic compound widely used as a solvent in various industries such as acrylic fibers, plastics, pesticides, adhesives, and pharmaceuticals. The demand for DMF in Indonesia is largely met through imports. To reduce import dependence and increase national revenue, it is necessary to establish a DMF plant in Indonesia. The planned DMF plant will be locate…
ABSTRACT Propionic acid is a carboxylic acid with the chemical formula C3H6O2. Propionic acid is an intermediate chemical product because it can be used directly or after being processed into salt. Propionic acid is widely used as a preservative in animal feed and grains. The need for propionic acid in Indonesia is still imported from abroad because propionic acid is not produced domestically.…
ABSTRACT The Central Bureau of Statistics (BPS) Riau plays a crucial role in providing data for the government and society. However, the current data collection and information presentation system, which is still table-based, is considered ineffective in illustrating socio-economic conditions, particularly poverty. Additionally, the BPS Riau website has not fully met user expectations, with a …
ABSTRACT An electrical energy plant that uses a synchronous generator when experiencing an increase in load there is a decrease in voltage at the generator output and when the load drops there is an increase in output voltage, so it is necessary to regulate the output voltage by adjusting the excitation current. This research analyzes the performance of a controlled full-wave single-phase rect…
ABSTRACT Kontes Robot Sepak Bola Indonesia-Beroda is a competition held to enhance students's knowledge and creativity in robotics. Competing robots must be able to dribble the ball and score goals autonomously. The HSV color filtering method is commonly used for object detection; however, it has limitations in handling variations in lighting intensity. This study proposes the implementation o…
ABSTRCTABSTRCTABSTRCT ABSTRCTABSTRCT Polyvinyl acetate (PVAc) is a thermoplastic polymer used as a raw material in the adhesive industry. PVAc whether modified or not, in solution or emulsion form, as a homopolymer or copolymer, shows a diversity that makes this adhesive suitable as a binder for various materials, especially wood products and their derivatives. PVAc is obtained from the polyme…
ABSTRACT Melamine is a chemical that has the formula C3H6N6 with another name 2-4-6 triamino 1-3-5 triazine. The need for melamine in Indonesia in the last five years was 133,803,190,000 tons. The main raw material in melamine synthesis is urea, which can be obtained domestically thanks to Indonesia's significant urea production. Establishment of a melamine factory to reduce the need for impor…
ABSTRACT Methyl Methacrylate (MMA) is classed as an organic monomer or organic chemical compound in the ester group. MMA is an ester of methacrylic acid. In industry, MMA is known as the main raw material for the manufacture of polymethyl methacrylate (PMMA), a transparent plastic that is often used as an alternative to glass. MMA is widely used in the leather coating industry, cosmetics indus…
ABSTRACT Hunter GYM is a Fitness Center located on Jalan Manyar Sakti, No. 10B, Panam, Pekanbaru, Riau. The limited number of Trainers at Hunter GYM causes many members, especially beginners, to have difficulty using GYM equipment properly. This increases the risk of injury due to incorrect technique, overtraining, or lack of guidance. This study aims to design and build a GYM Equipment Usage …
ABSTRACT Waste is one of the environmental problems that until now cannot be handled properly, while the ability of waste managers to handle waste is not balanced with its production. Lack of public awareness of the environment means that rubbish is scattered and piled up in various places. The limited number of places to dispose of waste is something that greatly influences the waste problem.…
ABSTRACT Grass management in plantations is carried out to clear the area of the plantation from grass and simplify the process of harvesting the garden area. Making a push lawn mower with a cutting knife height positioner is through production processes such as machining including the lathe process, cutting process, drilling and rolling process. And the machine is planned to be made with seve…
ABSTRACT Waste is one of the environmental problems that until now cannot be handled properly, while the ability of waste managers to handle waste is not balanced with its production. Lack of public awareness of the environment means that rubbish is scattered and piled up in various places. The limited number of places to dispose of waste is something that greatly influences the waste problem.…
ABSTRACT Technology is one of the fields that is now developing quite rapidly. As a manufacturer, product development is inseparable from the presence of technology that makes products simpler and more complex. This research was designed and built a pizza dough machine for household scale with a capacity of 1 – 4 kg, to improve time efficiency and at the same time to facilitate the process o…
ABSTRACT Technology is one of the fields that is now developing quite rapidly. As a manufacturer, product development is inseparable from the presence of technology that makes products simpler and more complex. This research was designed and built a pizza dough machine for household scale with a capacity of 1 – 4 kg, to improve time efficiency and at the same time to facilitate the process o…
ABSTRACT Grass management in plantations is carried out to clear the area of the plantation from grass and simplify the process of harvesting the garden area. Making a push lawn mower with a cutting knife height positioner is through production processes such as machining including the lathe process, cutting process, drilling and rolling process. And the machine is planned to be made with seve…
ABSTRACT The Physical Development Work Project CWR-01 AKSI ADB UNRI Integrated Laboratory Building at the end of the project in October 2023 had a progress of 61.483%, it should have been planned to be 100% so that there was a deviation of 38.517%, so it is necessary to identify the risk of delay. The purpose of this study was to identify risk factors for delay based on literature studies, det…
ABSTRACT Feminacare, a women's health consultation application with a chatbot, previously used the LSTM model which had an accuracy of 61% but often gave less relevant responses. This research proposes the use of SeaLLM model with Retrieval-Augmented Generation (RAG) approach to improve the accuracy of the chatbot. Based on three trials in the evaluation of 120 questions, the chatbot obtained …
ABSTRACT State Senior High School 2 Siak Kecil is a senior high school located in Bengkalis Regency, Riau Province. The academic assessment process at this school still relies on manual methods, where subject teachers record students' grades in notebooks. This process is time-consuming, prone to human error, and inefficient in final grade recapitulation and report card preparation. Therefore, …
ABSTRACT Solar energy is an abundant source of environmentally friendly renewable energy and has great potential to be used in charging electric vehicle batteries. However, one of the main challenges in the adoption of electric vehicle charging using solar energy is an efficient and fast battery charging process. This research aims to design and analyze the use of boost converter and maximum p…
ABSTRAK Optimizing energy utilization from Solar Power Plants (PLTS) is increasingly essential to enhance the efficiency and stability of the generated power. This research focuses on the development and implementation of a Fuzzy Logic Controller (FLC) for Maximum Power Point Tracking (MPPT) in PLTS. As a comparison, the Peturb and Observe (PnO) method, one of the commonly used MPPT algorithms…