ABSTRACT Riau, there were cost shifts and schedule delays caused by slow decision making, funding constraints and design issues resulting in 4 Contract Change Orders (CCO). At week 52, which coincided with the end of the project implementation plan, the work realization only reached 45.54% with a deviation of -54.45%. In December 2022 the project entered into period I of the contract declare…
ABSTRACT Pekanbaru City, located in Riau Province, Indonesia, comprises six sub-watersheds in its southern region: Sibam, Air Hitam, Senapelan, Sail, Tenayan, and Pendanau. Effective watershed management plays a vital role in hydrological planning, particularly in estimating peak flood discharge through the use of Synthetic Unit Hydrograph (SUH) methods. Among these, the Snyder method is widel…
Abstract Air transportation plays a crucial role in regional connectivity and economic growth. Kualanamu International Airport, as one of the main gateways in North Sumatra, experienced significant fluctuations in passenger numbers due to the COVID-19 pandemic. This study aims to evaluate and project the future demand for landing movements at Kualanamu Airport for the period 2024 to 2043. The …
ABSTRACT The existence of water catchment areas is influenced by the rapid development of built-up land that covers the infiltration rate and has an impact on space utilization that causes impermeability, drought and reduced water storage. Rangsang Island with an area of ± 913.16 km2 and the population increasing every year causes the need for land management to increase as well. Thus, it is …
ABSTRACT Methyl Ester Sulfonic Acid (MESA) is a group of anionic surfactants made through the sulfonation process. Methyl ester sulfonic acid is used to make liquid detergents. In Indonesia, there are not many factories or producers of methyl ester sulfonic acid so that imports are made to meet the needs. Therefore, the processing of methyl ester sulfonic acid is needed to meet the needs of me…
ABSTRACK This research discusses the development of a web-based property management system designed to meet the diverse needs of users, namely administrators and residents. This system uses the Research and Development (R&D) method with a Rational Unified Process (RUP) approach and Model-View-Controller (MVC) architecture. The application is built using the Laravel framework and MySQL database…
ABSTRACT Many cases of vision loss (such as those caused by infections, trauma, dangerous traditional medicines, diet-related disorders, prenatal Diseases, improper use or self-administration of topical therapy) are not always avoidable. Early Identification and proper treatment are essential for many Eye disorders, such as Diabetic retinopathy, to prevent irreparable vision loss. To detect …
ABSTRACT Radio over Fiber (RoF) is a telecommunications technology that integrates wireless networks and optical fibers to enhance network capacity and efficiency. However, RoF systems are vulnerable to the effects of Dispersion Power Fading (DPF), which can degrade signal quality. This research aims to analyze the performance of Dispersion Compensating Fiber (DCF) in mitigating DPF in RoF…
ABSTRACT Mangrove forests typically grow along coastlines and play a crucial role in protecting coastal areas from sea water-induced abrasion. Rangsang Island is located in a coastal region directly facing the Malacca Strait, making it vulnerable to coastal abrasion and shoreline changes. Google Earth Engine (GEE) is a platform that facilitates research related to shoreline changes caused …
ABSTRACT This study aims to evaluate the reliability of the SPI-3 (Standardized Precipitation Index) generated by Google Earth Engine (GEE) by comparing it with manual calculations using Microsoft Excel, as well as to analyze the correlation between SPI-3 and hotspot occurrences. SPI-3 monitoring is conducted due to the high fire susceptibility of peatlands during drought conditions, highl…
This study investigates the effectiveness of combining the Snyder Synthetic Unit Hydrograph (SUH) with three flood hydrograph models—Alexeyev, Gama I, and Nakayasu—in estimating High Direct Runoff (HDRO) across six sub-watersheds located in the southern region of the Siak River Basin, Pekanbaru City, Indonesia. The methodology integrates watershed characterization using Geographic Info…
ABSTRACT Unpredictable earthquakes have a major impact on structures, especially without bracing which has low strength against seismic forces. This study aims to analyze the effect of bracing on the natural frequency and dynamic response of SDOF and MDOF structures using the time history method. The dimensions of the structural system modeling refer to data from previous laboratory studie…
ABSTRACT The University of Riau campus area frequently experiences inundation during the rainy season, highlighting the need for effective and sustainable flood mitigation strategies. This study aims to model the hydraulic system of interconnected lakes within the campus area to optimize water retention capacity and reduce flood risk. Data collection included topographic, rainfall, and oth…
ABSTRACT Thresher machine is a tool that serves to separate the fruit from the bunch by slamming the fresh fruit bunch (FFB) with the help of rotation on the thresher drum. This tool is in the form of a rotating drum with a speed of ± 22-25 rpm. The thresher drum is 2 meters in diameter and 4 meters long. The process to produce crude palm oil can be said to not be able to take place optimally…
ABSTRACT This research aims to design and analyze the structure of a spreader bar and girder span capable of withstanding a load of 40 tons. The design is intended to support construction needs, particularly in the development of toll roads in the Riau region, which continues to grow. The methodology used includes manual calculations based on engineering mechanics theory and numerical analysis…
ABSTRACT CV. Musbar Mie is a food industry company located on Jl. Arifin Ahmad Gang Pelangi, focusing on the production of fresh noodles and raw noodles for chicken noodles, with a daily capacity of 700 kg. This study uses the Systematic Layout Planning (SLP) method to analyze the production facility layout and recommends the implementation of the 5S method to improve work productivity. The in…
ABSTRACT This research aims to measure production capacity, design facility layouts, and improve working conditions. Based on calculations, it was found that the daily production capacity of UMKM Bumbu Masak Buya can consistently reach 200 kg by following a structured work schedule. Furthermore, UMKM Bumbu Masak Buya does not yet have an organized production area layout or adequate supporting …
ABSTRACT The need for electrical energy in remote areas is still a challenge, especially due to limited access to conventional electricity networks. One potential and efficient solution is the use of Pump as Turbine (PAT) technology, namely the use of a centrifugal pump in reverse to generate electrical energy from water flow. This study aims to examine the effect of variations in the number o…
ABSTRACT This study aims to modify and analyze the product quality of a horizontal-motion hydraulic pipe bending machine in order to improve the tool’s ability to achieve a bending angle of up to 90°, which was previously unattainable. The modification was carried out by adding an auxiliary tool to the hydraulic pendulum of the jack, with the aim of extending the pendulum stroke without alt…
ABSTRACT This study aims to analyze damage to critical turbine components at the Maninjau Hydroelectric Power Plant (PLTA Maninjau) using the Failure Mode and Effect Analysis (FMEA) and Reliability Centered Maintenance (RCM) methods. As a primary component in hydroelectric power generation, the turbine plays a vital role in maintaining the continuity of electricity production. Despite routine …