ABSTRACT The research aims to analyze the stability of the slope at the Derofizha Permata Indrapuri Pekanbaru Housing site to obtain the Safety Factor value, The safety factor is an important consideration in the stability of slopes or embankments. The stability of a slope is a crucial factor in work that involves excavation, earthworkers, rocks, and mineral materials. The results of this …
The design of pile foundations requires accuracy in determining the soil bearing capacity in accordance with field conditions. This research was conducted to compare the bearing capacity of single pile foundations based on two types of data: Cone Penetration Test (CPT) results and laboratory soil test data. The study was carried out in the Indrapuri Housing area, Pekanbaru City. The analysis me…
ABSTRACT A slope is a land surface that makes a certain angle to the horizontal plane, causing a slope. Slopes that have a crucial slope need to be analyzed for slope stability. The purpose of this study, is a comparative analysis of the slope safety factor between the limit equilibrium method (Limite Equilibrium Method) and the finite element method (Finite Element Method) in terms of the…
ABSTRACT Erosion can reduce the capacity of water channels. So to overcome the problem of erosion in river channels, a river bank protection structure is needed. Therefore, in this study, analyzing the capacity of the river cross-section. This study aims to determine the flow rate of the Kampar River, the depth of the Kampar River in order to determine the river discharge after the constructio…
ABSTRACT Inconsistent quality and reliability of fresh fruit bunch (FFB) supplies posed major challenges for palm oil companies in maintaining efficient and stable operations. Selecting an FFB supplier was essential to ensure sustainable factory operations and maintain production quality standards. This study aimed to determine the most appropriate FFB supplier for PTPN IV Regional III Sei…
ABSTRACT Sago plants are a type of palm that can serve as a carbohydrate source due to their high starch production. However, using natural sago starch in food products and its processed derivatives remains limited. Natural sago starch has certain limitations in its physicochemical characteristics. These limitations can be addressed through dual modification, specifically fermentation and auto…
ABSTRACT Probiotics are live microorganisms that confer health benefits to the host if consumed in sufficient quantities. The activity of bile salt deconjugation and inhibition of pathogenic bacteria needs to be carried out on Limosilactobacillus fermentum InaCC B1295 and Pediococcus pentosaceus strain 2397 with and without CMF hydrogel encapsulation from oil palm fronds. This study was ca…
ABSTRACT Dry noodles are popular in Indonesia and primarily made from wheat flour. In recent years, there has been increasing interest in using sago starch as a glutenfree food alternative. Heat moisture treatment (HMT) can modify sago starch properties, depending on processing conditions like moisture content. This study aimed to evaluate the effect of varying moisture content during HMT …
ABSTRACT Marshmallow is a soft candy with a soft, chewy texture and a distinctive sweet taste. Natural coloring, such as rosella flower petal extract, is expected to provide good marshmallow characteristics. This research aimed to determine the best marshmallow treatment by adding rosella flower petal extract to its physicochemical and sensory characteristics. This research was carried out…
ABSTRACT Sengon wood is one of the fast-growing wood species that is widely utilized. However, it has low natural durability and is susceptible to termite attacks. This study aimed to evaluate the effectiveness of papaya leaf extract as a natural wood preservative against termite attacks on sengon wood and to determine the optimal concentration for enhancing its durability. The experiment …
ABSTRACT This research aims to develop an intelligent system capable of detecting and repelling wild boar pests in plantations. Wild boars are known as agricultural crop destroyers, often causing significant losses for farmers in Indonesia, especially in areas close to forests and mountains. With the increasing need to protect crops such as corn, bananas, and coffee, technology emerges as a cr…
ABSTRACT As population and economic growth in Indonesia increases, so does the demand for energy. For this reason, renewable energy is needed as the right solution to meet energy needs in a sustainable manner. Indonesia is geographically located in a tropical climate so that Indonesia can utilize PLTS as a source of new renewable energy. PLTS utilizes solar energy which will be converted into e…
ABSTRACK This research aimed to conduct a comprehensive comparative performance analysis between a newly developed single-axis solar tracker system and a conventional static solar panel system. The increasing global energy demand underscores the critical need for optimizing renewable energy sources, particularly solar power, which faces inherent challenges due to the sun's dynamic position thr…
ABSTRACT The main issue in conventional single-phase diode rectifier systems is the low power factor and high total harmonic distortion (THD) of the input current, especially under dynamic load conditions. This study aims to design and simulate a Boost Converter system equipped with Power Factor Correction (PFC) to improve power quality by increasing the power factor, reducing THD, and enhanci…
ABSTRACT An antenna-based sensor was designed for the measurement of salt and sugar concentrations in water, operating within the frequency range of 1–3 GHz. The sensor was implemented using two types of substrates: Polyethylene Terephthalate (PET) with a thickness of 0.135 mm, and FR-4 with a thickness of 1.6 mm. Capacitive coupling was employed to achieve narrow bandwidths of 115 MHz on th…
ABSTRACT The reliability of electric power distribution system plays a crucial role in ensuring the continuity and quality of electricity supply to customers. This level of reliability can be measured using several key indices, namely SAIFI (System Average Interruption Frequency Index), SAIDI (System Average Interruption Duration Index), CAIDI (Customer Average Interruption Duration Index), an…
ABSTRACT This research designed a microwave sensor for measuring pesticide residue concentration in agricultural water, operating at a frequency range of 1-3 GHz. The sensor utilizes two types of substrates: Polyethylene Terephthalate (PET) with a thickness of 0.135 mm and FR-4 with a thickness of 1.6 mm. To achieve high sensitivity, the sensor employs a capacitive coupling technique to produc…
ABSTRACT The advancement of Internet of Things (IoT) technology has created significant opportunities to enhance the efficiency of computer laboratory management. However, many laboratories still face challenges in resource monitoring and management. This study develops an IoT-Based Smart Laboratory using ESP32S and RFID RC-522, integrated with OpenWeatherMap for real-time weather data and Bly…
ABSTRACT Sengon (Paraserianthes falcataria) belongs to the low durability class, namely durability class IV-V, which is susceptible to attacks by wood-destroying organisms. In an effort to increase the service life and durability value of sengon wood, preservation was carried out using natural ingredients in the form of soursop leaf extract, which is known to contain acetogenin compounds a…
ABSTRACT Global warming and greenhouse gas emissions continue to rise. The government has a strategy to solve these problems, namely the Forest and Other Land Use (FOLU) Net Sink 2030 which is expected to successfully deal with the problem of global warming. Bungin Island City Forest located in Teluk Kuantan, Kuantan Singingi Regency, Riau Province with an area of 3.7 ha is one of the Gree…