ABSTRACT Methyl salicylate (C8H8O3) or oil of wintergreen is an organic compound in the ester group in the form of a colorless liquid which has little solubility in water. Methyl salicylate has uses in various industries. In the pharmaceutical industry, methyl salicylate is used as an active ingredient in drug formulations to take advantage of its analgesic effect and as a warming ointment or …
ABSTRACT Based on data in 2021 from the International Diabetes Federation (IDF) it shows that the number of diabetes patients in Indonesia has reached 19.47 million people, which places Indonesia in fifth position as the country with the highest number of people living with diabetes during 2021. This makes it necessary to regularly check diabetics, but some diabetics are afraid to check regula…
ABSTRACT Datuk Setia Maharaja Pekanbaru street is an urban road which is categorized as a collector street which has a width of 12 meters and a length of 1.620 meters. The road connects Sudirman street with Parit Indah street, so that many vehicles pass. Datuk Setia Maharaja Pekanbaru street was damaged and the service level decreased. The purpose of this study was to determine the types of ro…
ABSTRACT In current technological developments, information systems can make it easier for a person or group to obtain information quickly. One of them could be a drainage channel mapping information system. The technology that currently supports mapping information is a Geographic Information System or in Indonesian it is often called a Geographic Information System. Through this system, mapp…
ABSTRACT In the current Industrial era, electricity is one of the mechanisms for converting electrical energy into mechanical energy. One of the most widely used electric motors as a drive is the 3-phase induction motor, because the construction is simpler and the rotation is relatively more constant with load changes compared to other types of electric motors. Based on the background above, t…
ABSTRACT Along with the rapid development of the times, science and technology today provide more and more convenience in everyday life. Where everything that is widely applied science and technology with machines or electronics, so that human work can be done easily without having to waste energy and can shorten time. The development of science and technology (IPTEK) in meeting human needs, e…
ABSTRACT PT. Permata Citra Rangau is a crude palm oil processing company located in Duri that adopts a steam power generation system using a boilerturbine to produce electricity. This study aims to compare the electrical energy results obtained through field measurements and theoretical calculations to determine whether the power generation system is operating with optimal efficiency. The…
ABSTRACT In the current era of globalization, we cannot be separated from technological developments. Currently, convenience and efficiency of time and energy are the main considerations for humans in carrying out activities. The results of this technological development include the application of IoT (Internet of Things) to make automatic plant sprinklers, especially for chili plants. Chili p…
ABSTRACT The washing stage is a stage carried out in the pulp manufacturing industry to separate the cooked pulp from the black liquor content originating from the cooking stage in the digester. Before entering the pulp bleaching stage, the pulp will first be cleaned using a twin roll press to produce good quality pulp, with a press output consistency of 30 – 32% and low soda loss press …
ABSTRACT Recausticizing and lime kiln is one of the departments at PT RAPP which plays an important role as a white liquor supply unit for wood chips cooking ingredients in digester. In the process, the recausticizing lime kiln unit will process green liquor into white liquor by adding lime (CaO) through a causticizing reaction. The main objective of the causticizing process is to produce a un…
ABSTRACT Composite is a material made from a combination of two or more materials to produce a composite material that has different mechanical properties and characteristics from its constituent materials. The purpose of this study was to determine the feasibility of composites reinforced with coco fiber. In this study, the researchers varied the arrangement of the fibers, namely the stra…
ABSTRACT Composite is a material made from a combination of two or more materials to produce a composite material that has different mechanical properties and characteristics from its constituent materials. The purpose of this study was to determine the feasibility of composites reinforced with coco fiber. In this study, the researchers varied the arrangement of the fibers, namely the stra…
ABSTRACT Inpres Pekanbaru city’s road is a collector road that connect between the activity centers of Pekanbaru that has length about 2.400 meters and width about 6 meters. The purpose of this research were to determine the types of the damage, and find the index value of the flexible pavement condition on Inpres Pekanbaru city’s road by using the Pavement Condition Index (PCI) method. Th…
ABSTRACT In general, the flexural tensile strength of concrete is affected by the composition of concrete, but it turns out to be not only affected by the composition of concrete, but also can be affected by the loading speed. The effect of variation in loading speed on the tensile strength value of the K-250 concrete will be tested in this study. This test aims to determine the effect of vari…
ABSTRACT Solid organic fertilizer is the result of composting from the remaining agricultural and livestock waste, which contains macro and micro nutrients so that it can improve soil structure. This study aims to study the effect of composting time and EM4 concentration on the organic fertilizer produced and to analyze the N, P, K content of the solid organic fertilizer produced. Fertiliz…
ABSTRACT Technological developments at this time are very beneficial to human life, one of which is in the field of animal husbandry to help hatch eggs. However, the tools used are still conventional and there are several weaknesses, including still using the manual concept in monitoring the machine and the temperature in the egg hatching machine room is less stable. Based on this problem, the…
ABSTRACT Weak acid solution is a liquid produced from the scrubbing process the remaining hydrogen chloride (HCl) gas from the HCl synthesis unit using demineralized water. Weak acid solution is an absorbent in the absorption process of HCl gas from combustion in the HCl synthesis unit to produce a 32% HCl solution. Weak acid solution temperature is an indicator in the 32% HCl solution product…
ABSTRACT In supporting learning activities in the IT study program, several different learning methods are needed compared to the teaching and learning process carried out in the classroom. One of them is by utilizing the Learning Management System (LMS) which can be accessed by students anytime and anywhere. The use of LMS can increase student learning potential better, because it can support…
ABSTRACT Natuna Regency is part of the Kepulauan Riau Province which is located at the very northern end of Indonesia. Natuna consists of a group of small islands with a total of 27 inhabited islands out of a total of 154 islands. The object of this research is Sedanau Island, which currently utilizes groundwater as a source of raw water in a limited amount to meet the needs of 6,086 people. Th…
ABSTRACT The protection system is a system that functions to protect equipment such as generators and transformers from damage in the event of a disturbance and minimizes the disturbance so that it does not spread. The purpose of this study is to analyze and determine the correct differential relay setting values for generators and transformers at PLTU Tenayan. This research method uses second…