This article explains how the Indonesian Government is trying to handle the Mail Order Bride cases which are currently occurring in Indonesia. The Mail Order Bride case is a mode of Transnational Crime (Human Trafficking) which in its handling requires assistance from many parties such as family and neighborhood as well as government officials who work in the field of marriage matters. The impo…
ABSTRACT The zoo is a family educational tourist attraction that is related to the realm of flora and fauna, but is more closely related to the realm of fauna or animals themselves. Kasang Kulim Zoo is an area of the Bina Wisata Foundation and the Wildlife Park is the only zoo in Riau Province. The aim of this research is to determine the factors that influence the number of tourist visits to …
ABSTRACT Polyethylene waste is one of the plastic wastes that can be utilized in the construction industry. This research aims to study the use of polyethylene waste as a substitute for sand in the mixture for making paving blocks. The quality of paving blocks is determined by compressive strength testing. This research was designed with a mixture ratio of polyethylene, namely 5%, 10%, 15%…
ABSTRACT Oxalic acid has various industrial applications, including textile dyeing, iron coating (rust prevention), electrolytes, cork bleaching, cobalt production, agrochemical raw materials, pharmaceuticals, and more. The establishment of an oxalic acid plant aims to meet domestic demand and enhance Indonesia's capability as an exporter. The production process involves glucose oxidation usin…
ABSTRACT In the electric power distribution system, not all power can be utilized optimally by consumers due to power losses caused by technical and non-technical disturbances. The methods used in this study include primary and secondary data collection, line impedance calculations, and analysis of factors that cause power losses. The results of this study are expected to provide recommend…
ABSTRACT The quality of electrical power is highly influenced by the voltage stability in distribution systems. One of the most common power quality disturbances is voltage sag, which is a short-term reduction in voltage typically caused by sudden load changes. This voltage drop can negatively affect the performance of electrical equipment, especially sensitive devices. This study aims to simu…
ABSTRAK The grounding system is an important part of the electricity distribution network that functions to protect equipment and humans from electrical disturbances due to insulation failure or overvoltage. Good grounding allows the fault current to be channeled to the ground efficiently, thereby reducing the risk of electrical accidents and equipment damage. The grounding resistance value is…
ABSTRAK An inverter is a device that functions to convert direct current (DC) voltage into alternating current (AC) voltage. This study aims to design and test a 12V DC to 220V AC inverter system using an Arduino microcontroller as a PWM signal generator. The circuit consists of several main components: Arduino, optocoupler for signal isolation, MOSFET as an electronic switch, and a transforme…
ABSTRACT Automatic Transfer Switch (ATS) is an electrical device to control electrical sources switching from the main source to the backup source or otherwise. With this device theres no need for an operator to manually control the device. The control implements Programmable Logic Controller (PLC) as a controller of an ATS circuit that will work to switch between the main source and the backu…
ABSTRACT Red chili production in Riau province has decreased in the last three years. Efforts to increase production are carried out by adding empty oil palm bunches (EOPB) and watering. This study aims to determine the interaction of EOPB compost and watering frequency, single factor of EOPB compost and watering frequency as well as to obtain the best EOPB compost dose and watering frequency …
ABSTRACT The high nutritional content and benefits of eggplant have increased the demand for eggplant, but eggplant production is still low and has not been met. Based on this, this study aims to determine the effect of interaction between NASA liquid organic fertilizer and NPK fertilizer, the single factor of administering NASA liquid organic fertilizer and NPK fertilizer, and to obtain the b…
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 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…
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 The low productivity of shallots is due to the limited availability of fertile land in Riau Province. One way to overcome this problem is by using organic materials such as guano fertilizer. This study aims to determine the interaction between Guano Fertilizer and KCl, the single factor of guano fertilizer and KCl fertilizer, and determine the best combination for shallot growth a…
ABSTRACT The presence of cultural heritage artifacts is crucial as they represent a nation's history and identity. Currently, the condition of cultural heritage protection in Indonesia is concerning. There have been several cases of theft of cultural heritage artifacts, including incidents within museums, which should be the safest places for such collections. An example is the case at the Nat…
ABSTRACT This research aims to test and prove empirically the influence of financial conditions, leverage and auditor reputation on going concern audit opinion. The population of this research is real estate and property companies listed on the IDX for the 2019-2021 period with a total sample of 58 companies. The sampling technique uses purposive sampling. The data analysis method used in this…
ABSTRACK The purpose of this research is to test and analyse the effect of environmental performance, managerial ownership, and intellectual capital on firm value with financial performance as a mediating variable in manufacturing companies on the IDX in 2020-2023. The population in this study used 203 manufacturing companies listed on the Indonesia Stock Exchange (IDX), using purposive sampli…