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STRING (Satuan Tulisan Riset dan Inovasi Teknologi)
Published by Universitas Indraprasta PGRI
ISSN : 25279661     EISSN : 25492837     DOI : http://dx.doi.org/10.30998/string.v4i3.6197
Core Subject : Science, Education,
Computer Science & IT Mathematics
STRING (Satuan Tulisan Riset dan Inovasi Teknologi) focuses on the publication of the results of scientific research related to the science and technology. STRING publishes scholarly articles in Science and Technology Focus and Scope Covering: 1. Computing and Informatics 2. Industrial Engineering 3. Electrical Engineering 3. Mechanical Engineering 4. Applied Mathematical 5. Physics (Classical and modern) 6. Mathematics and Science
Arjuna Subject : Ilmu Komputer (semua kategori) - Teori Komputasi dan Matematika
Articles 14 Documents
 1   2 
Search results for , issue "Vol 7, No 3 (2023)" : 14 Documents clear
Penerapan Metode AHP Pemilihan Supplier dalam Pengadaan Bahan Baku di PT XYZ Citra Mawarni; Fahrriza Nurul Azizah
STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Vol 7, No 3 (2023)
Publisher : Universitas Indraprasta PGRI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/string.v7i3.14584

Abstract

Every company certainly has a raw material procurement system to determine the production requirements later needed when collaborating with more than one supplier. PT XYZ is engaged in manufacturing by producing bodywork for various types of vehicles. The raw materials in the production process are almost 80% iron plate. Further, the company has a problem, namely there are frequent delays in the delivery of raw materials due to mistakes in decision making when selecting a supplier and no further research carried out to determine the order of the right criteria. In this study, researchers use the method of Analytical Hierarchy Process (AHP). The purpose of this study is to minimize the occurrence of errors in the selection of supplier and to find out which supplier is appropriate in meeting the company’s raw material needs with predetermined criteria. The results obtained are the order of the best suppliers in meeting the raw material needs of PT XYZ at CV. SB of 42.72%, CV. Kin by 34.14%, and CV. BM is 23.14% while the order of supplier selection criteria is quality, price, delivery and payment.
Alat Pengatur Aliran Panas pada Pengering Pakaian Berbasis Arduino Zuly Budiarso; Eddy Nurraharjo; Antono Adhi; Hersatoto Listiyono
STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Vol 7, No 3 (2023)
Publisher : Universitas Indraprasta PGRI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/string.v7i3.15291

Abstract

Sensor is equipment needed to support the application of digital technology in various fields. The characteristics of a sensor that only produces analog quantities are a challenge itself in implementing digital technology using sensors. The combination of sensors and Arduino microcontrollers can be used to control various equipment systems. One of the applications of temperature sensors and Arduino microcontrollers is to control the flow of heat in a clothes dryer. The hot air generated by the equipment will burn the air in a tube. The resulting heat is flowed into the clothes dryer using a fan. To make the temperature in the clothes drying chamber stay at a certain point, a device is needed to regulate the flow of heat exhaled from the heating chamber. The regulation of the temperature is performed by adjusting the on and off buttons of two fans that blow hot air into the clothes drying chamber. By adjusting these two devices using a temperature sensor and Arduino microcontroller, the temperature in heating chamber can be maintained in a certain temperature point. The test results show that all the equipment used in the experiment work well. 
Sistem Informasi Geografis Sekolah di Kota Medan Menggunakan Algoritma Haversine Anggi Dessisiliya; Ali Ikhwan; Raissa Amanda Putri
STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Vol 7, No 3 (2023)
Publisher : Universitas Indraprasta PGRI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/string.v7i3.16277

Abstract

The Medan Education Office is one of the government agencies that has the task of managing education starting from elementary to secondary schools in Medan. At present, the management of school information data in Medan has not been integrated into a geographic information system. Therefore, it is difficult for the public to access school data because the available information is not structured and well integrated. The purpose of this study is to assist the Medan Education Office in integrating school data in a geographic information system and to make it a place for the public to find school information, distances and routes to the nearest school. The research uses the R & D (Research and Development) method which is a method for producing certain products and testing the effectiveness of the method. The research data are collected through observation, interview, and library research. The results of this study conclude that the haversine algorithm applied to the built geographic information system has shown the results of the distances and routes that can be taken by the users to get to the destination. The School Geographic Information System in Medan provides convenience to the Medan Education Office in inputting school data, helping the public access information easily. 
Perbandingan Efektivitas Metode EOQ dan JIT dalam Pengelolaan Persediaan pada PT XYZ Esha Putri Meilani; Fahriza Nurul Azizah
STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Vol 7, No 3 (2023)
Publisher : Universitas Indraprasta PGRI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/string.v7i3.14585

Abstract

PT. XYZ is a manufacturing company engaged in bodywork sector. Every company surely expects high profit. One of the ways to achieve the goal is by minimizing the expenses. Economic Order Quantity (EOQ) and Just In Time (JIT) methods are commonly used methods to save inventory costs. This study aims to compare which method is more effective and efficient in reducing inventory costs at the company. The results of the study show that the JIT method can reduce inventory costs by 91.14% for plate with 2mm 4x8 standard and 93.62% for plate with 3mm 4x8 standard, while the EOQ method can reduce inventory costs by 33.45% for both types of the raw materials. Based on the results above, it can be concluded that JIT method is more effective than EOQ method in reducing inventory costs in the company.

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