J-ENSITEC (Journal of Engineering and Sustainable Technology)

PENGENDALIAN PERSEDIAAN SPARE PART BIDANG MEKANIKAL DAN ELEKTRIKAL DENGAN METODE ACTIVED BASED COASTING (ABC) DAN ECONOMIC ORDER QUANTITY (EOQ) PADA PT. STP UNIT SOBO BANYUWANGI

Eritrian Bisma Primayanda — 2024-06-09

PT. Suri Tani Pemuka (STP) is a pond company in Banyuwangi that has various departments according to their tasks and functions, one of which is the mechanical and electrical (ME) department. In carrying out its tasks, the ME department heavily relies on the need for spare parts in repairing machine breakdowns in the workshop. However, there is a constraint faced, namely the delay of spare parts in repairing water turbine machine breakdowns due to lack of inventory control, especially for water turbine machine spare parts. Therefore, the Active Based Coasting (ABC) and Economic Order Quantity (EOQ) methods are used to solve this problem. The aim of this research is to determine the level of spare parts inventory based on cost, the level of spare parts inventory based on forecasting results, and to determine the ideal economic ordering calculation in spare parts inventory. The results of implementing ABC still show delays in spare parts inventory. After being improved using EOQ, the EOQ calculation results are as follows: Gear box gear 13 units, Gear box bearing 41 units, Turbine fan 6 units, Electric motor bearing 19 units, Seal cover 19 units, Oil seal 38 units, Turbine clutch 4 units. The implementation of the EOQ method in the inventory system or application shows that its use can reduce the expenditure of ordering goods more efficiently and effectively than relying solely on the ABC method.

ANALISIS KEPUASAN PELANGGAN JASA REPARASI SOUND SYSTEM DENGAN MENGGUNAKAN METODE IMPORTANCE PERFORMANCE ANALISYS (IPA) PADA UD. MBS AUDIO PESANGGARAN BANYUWANGI

Gian Dwi Prasetyo — 2024-06-09

In facing intense competition in the repair service industry, UD. MBS Audio needs to engage in continuous efforts to enhance service quality and understand the changing dynamics of customer needs. Therefore, the aim of this research is to identify and improve service quality, as well as to design an action plan to enhance services at UD. MBS Audio. This research utilizes the Importance Performance Analysis (IPA) method as a tool to translate customer expectations related to product or service quality. From the calculation results using the IPA method, Quadrant IV is identified as the top priority because it is considered highly important by customers and requires special attention as its performance has not yet reached optimal satisfaction levels. Critical attributes in Quadrant IV include P1, P5, and P10. A thorough evaluation of service quality, divided into four quadrants based on the IPA method, indicates that attributes in Quadrant IV (Top Priority) need continuous improvement to enhance their performance. The company's main focus should be on sustained improvement efforts to enhance the performance of these attributes, such as the cleanliness and tidiness of the facilities provided by UD. MBS Audio, providing satisfactory service results according to customer preferences, and offering guaranteed warranties.

ANALISIS SENTIMEN ULASAN E-COMMERCE SHOPEE PADA GOOGLE PLAY STORE MENGGUNAKAN MACHINE LEARNING

Meilinda Xanderina — 2024-06-09

With increasingly advanced technology nowadays, it become easier for people to shop. Previously we had to shop in person, now thanks to technology we can shop online with E-Commerce. E-Commerce provides an opportunity for producers to promote their products to be more accessible and makes it easier for consumers to share activities such as shopping and providing reviews. Reviews play an important role in a product, especially in building consumer confidence in choosing the desired product. Therefore, sentiment analysis is needed to help choose an E-Commerce application. Here the author will carry out Sentiment Analysis using Machine Learning. The purpose of this research is to conclude and identify whether a review is a positive review or a negative review. The algorithm used in this research is Naïve Bayes and Decision Tree using TF-IDF. The research results obtained are that the Naïve Bayes algorithm has higher accuracy with an accuracy of 0.88 or around 88%, and the negative label has a precision prediction result of 0.87, recall has 1.00, fi-score has 0.93, and finally with support 26, while the positive label with precision prediction results has 1.00, recall has 0.33, fi-score has 0.50, and the last one has support 6.

PENGEMBANGAN DASHBOARD INTERAKTIF UNTUK MENINGKATKAN PEMAHAMAN DAN PENGAMBILAN KEPUTUSAN

Diqy Fakhrun Shiddieq — 2024-06-09

Interactive dashboards emerge as an effective solution to meet these needs by providing real-time visual displays of business performance and enabling users to explore data easily. Despite the increasing demand for interactive dashboards, many organizations still face challenges in developing and managing dashboards according to their needs. This study aims to develop an interactive dashboard for monitoring product sales that aligns with business objectives, using a case study of Adidas shoe sales with data obtained from www.keggle.com. The methodology employed in this research involves two processes: system analysis and system design. The findings of this research present a data analysis dashboard for Adidas shoe sales, including sales data, profit, revenue, and total sales data per month and per region for each product. The successful development of interactive dashboards is expected to provide significant benefits, including increased operational efficiency, cost savings, and enhanced competitiveness in the market

PENGENDALIAN PERSEDIAAN BAHAN BAKU PEMBUATAN SANDAL DENGAN MENGGUNAKAN METODE LOT FOR LOT (LFL) DAN PERIOD ORDER QUANTITY (POQ) DI CV SINAR MAS

Fira Farhana — 2024-06-09

CV Sinar Mas is a company in the Footwear manufacturing sector. Based on data, demand for footwears fluctuates, causing CV Sinar Mas difficulty in producing the number of raw materials for footwears ordered. The company also has not used an optimal raw material inventory control system. Therefore, the company experienced an excess of raw materials which occurred in November-December 2023, resulting in a buildup of raw materials which caused high production costs and decreased quality because it was too piled up in the warehouse. So, there must be planning and control of the availability of raw materials in order to obtain minimal costs and maintain the quality of raw materials. This research uses the Lot Sizing method, namely LFL (Lot For Lot) and POQ (Period Order Quantity). The goal is to determine the order quantity with minimal costs.

RELAYOUT GUDANG FITTING PIPA DENGAN METODE SHARED STORAGE DI PT. TJAKRINDO MAS

Bella Kharisma — 2024-06-09

This analysis illustrates how changes in warehouse structure affect the smooth operation of a company or factory. At PT. Tjakrindo Mas, there is an irregular arrangement of finished product storage. causing a pile of goods that are not in accordance with the type so that during the retrieval process using a forklift there are difficulties due to the area that is not large so that it must be assisted with a hand pallet to carry the product to a wider area so that it can be reached by a forklift. That way it will waste a lot of time just because of the difficulty of wanting to transport goods. The method to be applied in the storage arrangement is the shared storage method, organised by placing finished products based on the FIFO (First In First Out) principle. This will minimise transport time as well as ensure efficient use of space.

UPAYA PENINGKATAN PRODUKTIVITAS UMKM PEMBUATAN KERUPUK BU TUTIK MENGGUNAKAN METODE OBJECTIVE MATRIX (OMAX)

Maulana Ari Eka Saputra — 2024-06-09

Abstract

Bu Tutik's cracker-making MSME is one of the cracker-making businesses located in Sidoarjo. This MSME is a business that operates in the manufacture of crackers. The crackers produced are like samiler crackers and puli crackers. This MSME is capable of producing up to 150 kg per month, where the production process still uses manual and simple methods. None of the processes in this MSME use machines for the production process. Productivity measurement is carried out using the OMAX (Objective Matrix) method. Next, analysis is carried out using the FTA (Fault Tree Analysis) method to obtain efforts to increase productivity.

PERANCANGAN ALAT PENGATUR KELEMBAPAN OTOMATIS PADA MESIN HATCHER TELUR BEBEK DENGAN METODE QUALITY FUNCTION DEPLOYMENT (QFD)

Ilham Dwi Septian — 2024-06-09

The duck farming business is an activity where farmers process ducks to breed and maintain them to obtain benefits and results from this activity. Ducks are quite popular among various groups, from small children to the elderly. UMKM in the Jombang area are located on Jl. Gatot Subroto No. 29A Mojongapit, Jombang. These UMKM are KUB chicken farms and broiler duck hatcheries. Hatching of broiler ducks is carried out using an automatic hatching machine that can turn the eggs automatically. The UMKM hatching machine processes 500 eggs each period. If the temperature and humidity method is not checked periodically, the egg hatching yield will be 75%. If you want to increase the hatching presentation, you can check regularly to reach 80%, but this takes too much time and energy. Therefore, I will make a tool that can regulate the humidity of the incubator. In solving this problem, the QFD method is used to fulfill consumer desires in making tools. Using the QFD method will make the tool making more optimal because before the tool is made a survey is carried out to determine consumer interest. The results of this research are tool designs that are made according to consumer interests.

PERANCANGAN ALAT PELUBANG PLASTIK KEMASAN TEMPE DENGAN PENDEKATAN ANTHROPOMETRI GUNA MENINGKATKAN PRODUKTIVITAS

Abdilah Fajar Khoirulloh — 2024-06-09

Pak Temmy Rahadi's Tempe UMKM is one of the tempe making UMKM located in Ds. Karangandong, Kec. Kedamean, Gresik. This UMKM was founded in 2010. Mr. Temmy Rahadi's tempe UMKM has a daily tempeh production target of 450 to 600 pcs and uses 80 kg to 100 kg of soybeans for daily production. The majority of customers are market middlemen, penyetan sellers, and home-based people in Kedamean, Gresik. In developing tempe MSMEs, there are various aspects that need to be considered to improve product quality and market competitiveness. One critical aspect is the tempeh packaging process, which plays an important role in ensuring product safety and quality. Currently, Mr. Temmy's tempeh MSMEs are facing significant problems related to the plastic hole punching tool for tempeh packaging which uses a knife in the process before packaging. The tool for punching plastic packaging using a knife requires a long processing time and also the results of the punching are not uniform, resulting in imperfect holes in the plastic packaging, thus making the tempe fermentation process less than optimal. Therefore, researchers are interested in raising this problem. By making a plastic hole punch tool for tempeh packaging, we hope that it will be able to improve the performance of tempeh production. In designing a plastic hole punch tool for tempeh packaging, researchers used ergonomic anthropometric approaches.

EVALUASI PRODUKSI DAN PERSEDIAAN PADA PRODUK PIPA DI CV.XYZ

Dinda Eka Putri Ma'arif — 2024-06-09

CV. XYZ is a distributor of building materials but focuses on PVC pipe products under the Target brand. CV. XYZ was founded in 2013. At CV. XYZ is very necessary for inventory scheduling which needs to be carried out by CV. XYZ in order to always meet consumer demand. The author suggests inventory calculations and scheduling to meet consumer demand using the Distribution Requirement Planning (DRP) method. In the DRP method there are several stages of data needed, namely demand data, inventory, lead time, holding cost data. Data processing in this DRP method is demand forecasting, determining Lead Time, determining lot size, calculating safety stock, and creating DRP tables. In the calculation results, results were obtained for distribution costs for 5 pipe products which initially had excess stock and could not meet demand. For Target Pipe AW 1.0 x 4m products savings of 33%, Target Pipe AW 2 ½ x 4m savings of 67%, Target Pipe C 5/8 x 4m savings of 67%, Target Pipe D 1 ½ savings of 50%, Target Pipe D 6.0 x 4m savings of 67%.

PENGUKURAN KELELAHAN KERJA DAN EVALUASI POSTUR KERJA PADA PEKERJA PELONGGARAN GARAM

Moh. Subhan Basri — 2024-06-09

This study aims to measure the physical workload experienced by workers in Pegaraman 1 Sumenep, PT Garam (Persero). With a production of 115,000 tons per season, Pegaraman Area 1 Sumenep faces a huge challenge in achieving production targets with the use of efficient tools for workers. This is the problem that causes work fatigue, based on the identification of the research conducted. To overcome this problem, the research will focus on measuring the physical workload of salt loosening workers using the NBM, REBA, and CVL methods, in the hope of finding the right solution to solve problems related to work fatigue during the salt loosening process. The results showed that workers experienced physical workloads that needed action, with the results of the NBM recapitulation with a value of 50–70 risk levels, the REBA score with a value of 4, and CVL percentage values of 54.53% for the first worker, 55.21% for the second worker, and 53.67% for the third worker. Based on these findings, it can be concluded that the use of simple tools causes fatigue in workers. Therefore, an innovation is needed in the design of salt loosening tools to reduce the risk of fatigue in workers.

ANALISIS SENTIMENT KOMENTAR VIDEO YOUTUBE “EPIC RAP BATTLE OF PRESIDENCY 2024” MENGGUNAKAN ALGORITMA NAÏVE BAYES & SVM

Gavin Berylian Josepto — 2024-06-09

Sentiment analysis of YouTube video recordings has become important in this increasingly technologically advanced era to understand users' reactions and opinions on various topics, including politics. Rapfight videos, especially those related to the presidential election, are one type of content that often attracts attention. This research uses the Naïve Bayes algorithm to assess the sentiment of comments on the video "Epic Rap Battle of Presidency 2024" on the YouTube site. The algorithms used in this research are Naïve Bayes Classifier and Support Vector Machine (SVM). There are five processes in this research, namely collecting YouTube comment data, preprocessing, labeling, classification, implementation and testing. From 3650 comment data on YouTube regarding the video "Epic Rap Battle of Presidency 2024" based on the results of the analysis, it was found that 31% of the comments were positive, 7% of the comments were negative and 62% of the comments were neutral. The accuracy results using the Naïve Bayes Classifier algorithm were 84.82% and the accuracy results using the Support Vector Machine (SVM) algorithm got the best results at 93.3%.

ANALISIS MANAJEMEN RISIKO OPERASIONAL BONGKAR MUAT MENGGUNAKAN METODE HOR

Siti Rofifa Salim — 2024-06-09

This research focuses on risk management in loading and unloading operations at SPMT Jamrud Nilam Mirah Branch, a multipurposeterminal in Surabaya. The aim of this research is to analyze risk events and their causes using the house of risk method, with a focus on determining risk agent priorities and mitigation strategies. In dry bulk cargo loading unloading operations, there are 36 risk events and 23 risk agent identified, with three dominant risk agent; lack of operator alertness, dust spills of hazardous bulk commodities and working at height, and slippery conditions. Based on these risk agents, shix key mitigation strategies were identified, which significantly reduced the estimated time of delay by 63% of the total cumulative ETD value. These strategies include the implementation of automatic warningsystems, the application of 3D technology, continuous risk monitoring and analysis system, anonymous reporting, the use of drones, and the use of predictive algorithms.

ANALISIS BULLWHIP EFFECT PADA CV. XYZ

Alief Yoga Rahargyansyah — 2024-06-09

Tri Jaya Sentosa is a marketing distributor for Frisian Flag dairy products. CV XYZ is located at Ds. Mojodeso, District. Cotton, Bojonegoro Regency. CV. Tri Jaya itself also often experiences a problem called the Bullwhip Effect in certain products. Demand from consumers often changes, so that sometimes it is difficult for companies to predict consumer demand, this situation often results in an increase or decrease in demand from consumers for a product. For this reason, an approach using Supply Chain Management (SCM) is needed. To overcome the problems that occur at CV. XYZ above, the author tries to provide a calculation solution to calculate, reduce and find out what causes the Bullwhip Effect. CV XYZ priorities for retail tend to experience a bullwhip effect. This situation ensures that product distribution is not constrained. CV XYZ priority is Tiga Bersaudara retail for BKM Sachet products because the bullwhip effect value is quite high, namely 2,825. This can mean that information distortion occurs so that information data from retail to sub-distributors does not run smoothly.

ANALISIS ENDAPAN SEDIMEN DASAR BENDUNG KAMUN TERHADAP TINGGI MERCU DAN KEHILANGAN DEBIT AIR SALURAN INDUK CILUTUNG BARAT KABUPATEN MAJALENGKA

Erni Sari Lumban Toruan — 2024-06-09

Kamun Dam is a permanent weir with its water intake in the Cilutung River Basin (DAS). One major factor affecting water reduction at the weir is sediment settling at the upstream base. Effective and efficient management is crucial for irrigation water and networks to maximize benefits. Water loss from primary to secondary and tertiary channels negatively impacts irrigation system performance. The water flow through weirs and structures with varying discharges influences the water surface profile and its characteristics.This research aimed to determine the water level, total sediment transport capacity, water discharge loss in the West Cilutung main channel, and the water surface profile shape. The data comprised primary data from field investigations and secondary data, including average discharge data from 2008-2017.Water level analysis was performed using hydraulic formulas and the Trial and Error method. The highest water level recorded was 0.74 m in April, and the lowest was 0.22 m in August. Sediment transport analysis, using the Meyer-Peter Muller method, estimated that it would take approximately 13 years to fill the upstream of Kamun Dam with 1,436,470.04 m³ of sediment, without dredging, given a river width of 74.15 m and height of 3 m. Water discharge loss analysis, using the inflow and outflow method, showed Qrenc results from BLK.1-BLB.1 at 0.06 m³/sec and Qactual at 0.27 m³/sec. The water surface profile analysis, using the graphical integration method, yielded Qrenc results for profile I f(y) = 4786 and Qactual results for profile I f(y) = 789

ANALISIS KEGUNAAN DAN KEBERMANFAATAN APLIKASI GRABFOOD DI WILAYAH PALEMBANG MENGGUNAKAN REGRESI LINIER SEDERHANA

Mutiara marsa silvia — 2024-06-09

The development of information and communication technology has brought significant changes in various aspects of people's lives, including consumption and food services. One of these advances is the presence of food delivery service applications, such as GrabFood. This research aims to analyze the usability and usefulness of the GrabFood application in the Palembang area using a simple linear regression method. Data was obtained through a survey of GrabFood application users in Palembang. The independent variable is application usability, measured based on ease of use, accessibility, and speed of service. The dependent variable is the usefulness of the application, measured based on the level of user satisfaction and frequency of use. The results of the analysis show a significant positive relationship between usability and usefulness on the attitudes of GrabFood application users. In conclusion, increasing the usability of the GrabFoodapplication increases its usefulness for users in Palembang. This research has implications for developing and improving GrabFood application services to better meet user needs and expectations.

ANALISIS TINGKAT KEPUASAAN PENGGUNA APLIKASI SHOPEE DIKALANGAN GEN Z MENGGUNAKAN REGRESI SEDERHANA

Ratna Juwita — 2024-06-09

This research aims to analyze the level of satisfaction of Shopee application users among generation Z (Gen Z) using a simple regression method. In the ever-growing digital era, Shopee has become one of the most popular e-commerce platforms in Indonesia, especially among Gen Z who are very familiar with technology. This research uses primary data collected through an online survey of 30 Gen Z respondents who are active users of the Shopee application. The independent variables used in this research include ease of use, product variety, customer service quality, and promotions. The dependent variable measured is the level of user satisfaction. The results of simple regression analysis show that all independent variables have a positive and significant influence on the level of satisfaction of Shopee application users among Gen Z. The customer service quality variable has the most dominant influence, followed by ease of use, promotions and product variety. The findings of this research provide practical implications for Shopee management in improving marketing strategies and service quality to maintain and increase user satisfaction among Gen Z. This research also provides academic contributions by adding insight into the factors that influence e-commerce user satisfaction among this generation. young. This abstract provides a brief but comprehensive overview of the aims, methods, results and implications of the research conducted, in accordance with academic journal writing standards.

EVALUASI EFEKTIVITAS SISTEM DETEKSI PENIPUAN BERBASIS AI MENGGUNAKAN METODE REGRESI LOGISTIK UNTUK MENINGKATKAN KEAMANAN TRANSAKSI PADA STARTUP FINANCE

M. Raflie Akbar — 2024-06-09

This research evaluates the effectiveness of an AI-based fraud detection system in a finance startup using logistic regression methods. The primary objective is to assess whether this model is feasible for enhancing transaction security. The research methodology employed is quantitative, utilizing historical transaction data. The test results indicate that the logistic regression model can accurately predict the company's financial conditions, with an accuracy of 95%. However, there are challenges in detecting fraudulent transactions, as evidenced by the low recall for fraudulent transactions. The model evaluation was conducted using several performance metrics such as accuracy, precision, recall, and F1-score, as well as model fit tests including Hosmer and Lemeshow’s Goodness of Fit Test, Omnibus Test of Model Coefficients, and -2 log-likelihood. In conclusion, this model has the potential to enhance transaction security, but it still requires improvements to more effectively detect fraudulent transactions

EVALUASI KINERJA DAN KEAMANAN APLIKASI WHATSAPP TERHADAP KEPERCAYAAN KONSUMEN METODE USABILITY TESTING

Refki Pradana — 2024-06-09

The rapid development of technology in this era has brought significant changes to various aspects of society's life, especially with the emergence of social media, which adds complexity to individual technology needs. One of the essential technologies is the WhatsApp application. WhatsApp is a cross-platform messaging application that allows message exchanges using internet data packages, similar to email, web browsing, and others. The various unique features offered by WhatsApp make it the primary medium used by university students to communicate and share information. To evaluate the performance and security of the WhatsApp application regarding consumer trust, an analysis was conducted using the usability testing method. By distributing questionnaires to university students, 50 respondents were obtained. This research aims to determine whether WhatsApp has satisfactory performance and security among university students.

ANALISIS EFEKTIVITAS APLIKASI BIBIT DALAM MENINGKATKAN LITERASI KEUANGAN MASYARAKAT KOTA PALEMBANG MENGGUNAKAN METODE UTAUT

Erik Priansyah — 2024-06-09

The research investigates the influence of the Bibit Application on financial literacy among residents in Palembang, employing the Unified Theory of Acceptance and Use of Technology (UTAUT) framework. The findings reveal a notable improvement in users' financial understanding, with significant advancements in comprehending financial concepts, managing investments, and planning finances. The study identifies that variables such as age, educational background, and prior investment experience play a crucial role in the enhancement of financial literacy. Based on these insights, the research suggests several recommendations to further augment financial literacy through the Bibit Application. These include the integration of structured educational content within the app, providing targeted user training programs, and establishing partnerships with financial and educational institutions. The overarching aim of the study is to make a substantial contribution to the improvement of financial literacy through the application of financial technology in Palembang. By addressing the specific needs and characteristics of the user base, the study aspires to facilitate a more financially literate society capable of making informed financial decisions..

PENGARUH KEGUNAAN APLIKASI KRETA API INDONESIA DALAM KEHIDUPAN MAHASISWA DI PALEMBANG MENGGUNAKAN METODE REGRESI LINIEAR

Ega Praditya Tama Putra — 2024-06-09

This research aims to analyze the influence of the use of the Kreta Api Indonesia Application on the lives of students in Palembang using a simple linear regression method. Data collection was carried out through questionnaires distributed to students who used the application. The independent variable in this research is the usability of the application (Trust/X) and the dependent variable is student participation in using the application (Participation/Y). The results of simple linear regression analysis show that the significance value is 0.006, which is smaller than 0.05. This indicates that the Trust variable (X) has a significant effect on the Participation variable (Y). Apart from that, the calculated t value of 2.861 is greater than the t table of 2.01063, which also confirms that the Trust variable (X) has a significant influence on the Participation variable (Y). From these two test results, it can be concluded that the usability of the Kreta Api Indonesia application has a significant influence on student participation in Palembang in using the application. This shows that the higher the level of student trust in the application, the higher their participation in utilizing the application for their transportation needs.