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…
ABSTRACT Load balancing in distribution transformers plays a crucial role in maintaining the efficiency of electrical power distribution systems. Imbalanced loads in transformers are a significant issue that can lead to energy losses, including the emergence of neutral currents in conductors. To address this problem, this study proposes the application of the Fuzzy Logic method using a Fuzzy I…
ABSTRACT Graphene is a two dimensional carbon material with superior properties such as high electrical conductivity, exceptional mechanical strength, and significant potential in various technological applications. This study aims to produce graphene from coconut shell-based activated carbon using the Arc Discharge method. High-voltage plasma was generated by a neon sign transformer with an o…
ABSTRACK In today's digital era, companies are leveraging data with data mining techniques to uncover patterns and important information. This study produces two data mining methods, Apriori and FP-Growth, for drug purchasing pattern analysis. Although FP-Growth is often more efficient, Apriori can provide competitive results in small datasets. Purchasing pattern analysis has strategic value f…
ABSTRACT The Siak River, as one of the primary raw water sources in Pekanbaru City, faces challenges due to high color levels influenced by peat surrounding the river flow. This condition presents a significant challenge in the water treatment process to produce clean water that meets established quality standards. This study aims to determine the optimal chemical dosages for drinking water tr…
ABSTRACT Propylene is a colorless, flammable, low-viscosity organic compound that is gaseous at room temperature. Propylene is widely used as a raw material in the production of polymers such as polypropylene, which is used in the manufacture of various plastic products. In addition, propylene is also used in the chemical industry as an intermediate in the manufacture of other compounds, such …
ABSTRACT Alpha olefins are straight-chain hydrocarbons with double bonds in the alpha position, namely 1-butene, 1-hexene, and 1-octene. Alpha olefins production is classified as a basic chemical product because it is used as a raw material for chemical production. Alpha olefins in Indonesia are used as commonomers for the production of Linear Low Density Polyethylene (LLDPE) and High Densi…
ABSTRACT C6H12. Hexene-1 is a clear colourless liquid with a petroleum-like odour, soluble in most organic solvents but insoluble in water. Hexene-1 also provides tear resistance and other desirable properties to polyethylene, thus its main use as a comonomer in the production of High Density PolyEthylene (HDPE) and Linear Low Density PolyEthylene (LLDPE). It can also be used as a solvent, p…
ABSTRACT Acrylic Acid is a compound with the molecular formula C3H4O2 which is used in the polyacrylate, hydrocyanicrylate, coating formulations, Superabsorbent Polymers (SAPs), and polymer industries. Acrylic Acid is made using the oxidation process on acrolein produced from the glycerol dehydration reaction. This factory is planned to operate for 330 days per year and work continuously for 2…
ABSTRACT Benzoic acid, also known as benzenecarboxylic acid with the molecular formula C6H5COOH, is a chemical compound commonly used as a preservative in food, pharmaceuticals, and cosmetic products. The uses of benzoic acid are not only limited to preservatives but also include being a raw material in the production of alkyd resins, plastic materials, and various other organic compounds. Ben…
ABSTRACT Benzoic acid is an intermediate material needed in Indonesia. The benzoic acid plant is designed with a production capacity of 18,000 tons per year. The raw materials used are toluene and oxygen, with the assistance of cobalt acetate catalyst through the toluene oxidation reaction. The average import of benzoic acid in Indonesia is 8,339 tons per year (BPS, 2023). It is expected that …