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Yetti Meuthia Hasibuan
Universitas Harapan Medan
Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Transportation Other

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ANALISIS PERENCANAAN PERAWATAN MESIN STERILIZER DENGAN METODE OVERALL EQUIPMENT EFFECTIVENESS DAN SIX BIG LOSSES DI PT TORGANDA PKS RANTAU KASAI Rini Halila Nasution; Yetti Meuthia Hasibuan; Uun Novalia Harahap; Sekar Ayu Ony Ningrum; Alda Febriansyah Chaniago
Jurnal Simetri Rekayasa Vol 2 No 2 (2020): Edisi Oktober 2020
Publisher : Universitas Harapan Medan

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Abstract

PT. Torganda PKS Rantau Kasai is one of the palm oil processing plants that produce crude palm oil (CPO), and palm kernel (kernel) products. As the production process progresses, there is a problem with the sterilizer, namely downtime. The purpose of this study is to calculate the effectiveness of the sterilizer machine and provide a proposal for machine maintenance planning. The methods used are the Overall Equipment Effectiveness (OEE) and Six Big Losses methods to calculate the effectiveness of the machine and find out what losses are the largest. The results of the calculation of the effective value of the sterilizer machine from May 2021 to April 2022 the average availability ratio value is 96.33%, the performance efficiency of 64.40%, and the rate of the quality product is 100%. o the value of Overall. Equipment Effectiveness (OEE) is 62.04%. This value is still below the predetermined World OEE standard of 85%. The value of six big losses that had the biggest effect on the decline in the effectiveness of sterilizers was reduced speed losses, which was 82.46%. The proposed maintenance planning carried out is to improve the maintenance of the sterilizer machine on a daily, weekly, and monthly basis, apply preventive and corrective maintenance on the sterilizer machine, and conduct periodic inspections on the sterilizer machine.
PENERAPAN JUST IN TIME DALAM PERSEDIAAN BAHAN BAKU PEMBUATAN KERIPIK SINGKONG Jumadi Suratman; Rini Halila Nasution; Yetti Meuthia Hasibuan; Ardilla Ardilla; Jaka Tri Hadiyatna
Jurnal Simetri Rekayasa Vol 2 No 2 (2020): Edisi Oktober 2020
Publisher : Universitas Harapan Medan

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Abstract

The New Sustenance Trading Business is a business engaged in snacks, precisely making cassava chips. In this business, there is a residue and insufficient use of supplies of supporting raw materials such as cooking oil, garlic, and table salt. Therefore, it is necessary to control inventory with a method, namely Just In Time (JIT). Based on the results of the research by applying Just In Time (JIT) to get the total cost of cooking oil inventory of Rp. 1,174,888, garlic Rp. 272,673, table salt Rp. 516,218 and when applying the Just In Time (JIT) method there was a saving in the cost of cooking oil inventory of Rp. 1,206,705, garlic Rp. 1,550,542 and table salt Rp. 668,048.
ANALISA PENGUKURAN KINERJA DENGAN METODE PERFORMANCE PRISM DAN OMAX DI PT. TORGANDA PKS RANTAU KASAI Rini Halila Nasution; Uun Novalia Harahap; Yetti Meuthia Hasibuan; Deny Satria; Anggi Muhaimin
Jurnal Simetri Rekayasa Vol 3 No 2 (2021): Edisi Oktober 2021
Publisher : Universitas Harapan Medan

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The current performance measurement conducted by PT. Torganda PKS Rantau Kasai is a traditional performance measurement method that only focuses on the financial aspect as s benchmark for measuring performance. However, performance measurement ignores other company stakeholders such as employees and suppliers. Performance Prism is used for performance design and measurement. Performance measurement in this study is also supported by several methods including weighting with Analytic Hierarchy Process (AHP) to determine the priority value scale of each KPI, Scoring System with Objectives Matrix (OMAX) method, and Traffic Light System to determine the total index value of the company. This research is classified as descriptive research, data collection techniques are carried out by conducting direct interviews with the company and distributing open questionnaires to selected sources, and distributing AHP (Analytic Hierarchy Process) questionnaires. The results of the measurement analysis of PT. Torganda PKS Rantau Kasai has achieved the expected performance with a total index of 7.1307. In this study, there are 3 stakeholders, namely investors (head office) with 10 KPIs, employees with 10 KPIs, and suppliers with 10 KPIs. In total there are 30 KPIs as performance indicators of PT. Torganda PKS Rantau Kasai found 6 KPIs in the green category, 16 KPIs in the yellow category, and 8 KPIs in the red category.
ANALISA PERBAIKAN SISTEM KERJA SEBAGAI UPAYA MENGURANGI RISIKO MUSCULOSKELETAL DISORDERS MENGGUNAKAN METODE RULA DAN RWL DI CV. KOTAMA SHOES Uun Novalia Harahap; Yetti Meuthia Hasibuan; Rini Halila Nasution
Jurnal Simetri Rekayasa Vol 3 No 2 (2021): Edisi Oktober 2021
Publisher : Universitas Harapan Medan

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Health problems in the operator's posture while working have a significant impact on the products produced and indirectly affect the value of work efficiency, uncomfortable workplaces and environments cause company losses, including complaints of musculoskeletal disorders (MSDS). CV KOTAMA SHOES is a company that produces leather shoes, and in the production process, there are still movements and postures that are not ergonomic. This research was conducted to determine the value of risks contained in each work process, starting from the pattern & cutting, assembling, finishing, and storage of parts in the CV. KOTAMA SHOES is based on RULA and RWL scores and will provide proposed improvements to the company to reduce the risk of musculoskeletal disorders. This study uses the Rapid Upper Limb Assessment (RULA) method, a method that is used to analyze the upper body in detail, quickly and the angles formed by working posture, and the Recommended Weight Limit (RWL), a method used to calculate the recommended and recommended load limit for workers to lift under certain conditions. Results of measuring the level of ergonomic risk to complaints of muscle pain (myalgia) in production division workers in CV. KOTAMA SHOES pattern & cutting section gets a rula score of 5 for posture, this assembling gets a score of 7 for posture, finishing gets a score of 5 for posture and storage gets a score of 3 for posture. Based on this score, the posture of the assembling part is at level 4, which is very risky, further treatment needs to change as soon as possible. Improvement recommendations are given to reduce/solve workers' problems with complaints of muscle pain (myalgia) in the production department in CV. KOTAMA SHOES is by changing the movement or working posture in the production of leather shoe processing and the recommended object load for the type of work performed by employees in the assembling section is a maximum of 15.73 kg with a lifting index of 0.082 kg.
ANALISIS PERENCANAAN DAN PENGENDALIAN PERSEDIAAN DENGAN MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY (EOQ) DAN PERIOD ORDER QUANTITY (POQ) Uun Novalia Harahap; Yetti Meuthia Hasibuan; Abdul Azis Syarif; Agung Al Balad; Khairul Amri
Jurnal Simetri Rekayasa Vol 4 No 1 (2022): Edisi April 2022
Publisher : Universitas Harapan Medan

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Supplies are always needed by every company, both small companies, and large inventories. Without an inventory of raw materials, the company is faced with the risk that one day the company will not be able to meet the needs of consumers. The purpose of this study is to determine the amount of raw material purchased at each message with the lowest cost and find out the right time period to place an order for raw materials by calculating with the raw method. The data studied is in the form of data on raw material needs, data on ordering costs, storage costs, frequency of raw material purchases, and the amount of raw material purchases during 2021. The approach used is the Economic Order Quantity (EOQ) and Period Order Quantity (POQ) Methods. Meanwhile, the calculation using the POQ method is lower than the company's policy, with the purchase of raw materials as many as 1,170 pallets with a frequency of 6 times, and 34 pieces of plywood with an order period made 10 times a year with a total inventory cost that must be spent of Rp. 4,581,178, or only 26% of the current method carried out by the company. By using the POQ method, the company can save inventory costs of Rp. 12,964,990. and safety supplies of 56 pallets and 6 sheets of plywood and re-ordered when the raw materials amounted to 1,296 pallets and 33 sheets of plywood. Based on the conclusions above, the author advises companies to consider using the POQ method to determine the need for raw materials needed.
PERBANDINGAN METODE SHARED STORAGE DAN METODE DEDICATED STORAGE PADA PENEMPATAN DAN PENYUSUNAN BARANG DI GUDANG SPAREPARTS PT INDONESAI ASAHAN ALUMINIUM (PERSERO) Yetti Meuthia Hasibuan; Abdul Azis Syarif; Denny Walady; Rafiqi Pratama; Hadad Alwi Hakim Hasibuan
Jurnal Simetri Rekayasa Vol 4 No 1 (2022): Edisi April 2022
Publisher : Universitas Harapan Medan

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Abstract

PT Indonesia Asahan Aluminium (Persero) is one of the State-Owned Enterprises (BUMN) engaged in aluminum smelting and is the only company engaged in the aluminum smelting industry in Indonesia. This research was conducted in the spare parts warehouse, where the problem is that the layout of the warehouse is still random and not neat, causing disruption of the storing issuing process and activities in the warehouse. Shared storage and dedicated storage is a methods of redesigning the storage layout to get a repair design. Then to get the optimum design results, the calculation results of the two methods are compared to obtain an efficient improvement design from the actual conditions. The results of the shared storage design obtained a mileage minimization of 1,133.18 m. Dedicated storage can minimize mileage by 394.59 m. This distance has decreased from the previous distance the initial layout distance was 5,639.00 m. So that the optimal method used is the shared storage method with a distance reduction of 4,505.82 m of material handling travel from the initial conditions. With this research, it is hoped that the spare parts warehouse will be neater and more organized so as to facilitate activities in storing and picking up goods, and can save used blocks.
ANALISIS PENERAPAN PROGRAM KESELAMATAN KERJA DALAM USAHA MENINGKATKAN PRODUKTIVITAS KERJA DENGAN PENDEKATAN FAULT TREE ANALYSIS DAN HAZARD AND OPERABILITY STUDY Yetti Meuthia Hasibuan; Rini Halila Nasution; Uun Novalia Harahap; Rafika Apriani Pratiwi; Wan Krisman Hia
Jurnal Simetri Rekayasa Vol 3 No 2 (2021): Edisi Oktober 2021
Publisher : Universitas Harapan Medan

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PT. Sumatra Hakarindo in its operation is not free from problems encountered such as work accidents, occupational diseases and the negative impact of the industry on the surrounding environment, so the level of human work safety as a factor of production is needed so that optimal productivity can be achieved. The application of work safety programs for workers is an important supporting effort in production activities. The work safety program system consists of several program elements and their supporters. In this study the measurement of the results of work safety efforts and the safe T value, the frequency level to express the number of accidents that occur every 1,000,000 hours worked from the employee's "work hours" home. The safe T value is a measurement that aims to compare the results of the accident reduction rate achieved for that work. From the implementation of the Occupational Health program at PT. Sumatra Hakarindo can be said to have been implemented quite well. Accidents that occurred in 2018 -2020 were 15,13,11 accidents. With a frequency rate from 2018-2020 it is 64.6; 49.9; 36,1. The severity level that occurred in 2016-2018 was 458.9; 284.2; 233,2. With a safe T value in 2018 it is known - 950.2 in 2019 it is - 1098.2. The decrease in accident rates and the severity of accidents from year to year will increase labor productivity.
METODE SERVQUAL DAN QFD DALAM MEMPERBAIKIN KUALITAS PELAYANAN PADA TOKO SEPATU WEST STORE MEDAN Uun Novalia Harahap; Yetti Meuthia Hasibuan; Rini Halila Nasution
Jurnal Abdi Ilmu Vol 12 No 2 (2019): JURNAL ILMIAH ABDI ILMU
Publisher : UNIVERSITAS PEMBANGUNAN PANCA BUDI

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In business disciplines, among others, production, sales, supply of goods, and services are the main factors in doing business, especially for customers. If a company creates things that can be handled and can be seen in a tangible form, then these services have no form but can be felt by customers. This should not be underestimated by business people, especially if the company is engaged in the service sector. In a service provider manufacturing business, quality is one of the various elements that must be considered, if the business has a competitive nature against competitors. Quality is considered crucial because it proves the product being sold, not only assessing the use or service, but also the suitability between the buyer and the user in utilizing the goods or services provided and selected. If the products and services offered have quality, then the level of consumer desire will also increase, this is called the provision of good service quality (Servqual). This research is a quantitative study using the Servqual and QFD (Quality Function Deployment) methods. This research was conducted by the authors at the West Store Medan Shoe Store, with the aim of knowing and analyzing the level of customer satisfaction with the quality of service and goods at the West Store Medan store. In this study, the authors carried out a description of each method, the aim was that the validity of the data produced would not be doubted. This research shows that there is still a lack of service at the West Store Medan Shoe Store, including the lack of agility of store employees in responding to buyers, lack of responsibility when serving, insufficient parking and cleanliness, and lack of complete facilities. Keywords: Klinik; BPJS; Quality Function Deployment (QFD; House of Quality (HOQ)
ANALISA BIAYA KEGAGALAN TERHADAP KUALITAS MEBEL (FURNITURE) DENGAN METODE COST OF POOR QUALITY DI CV. FAST AKSARA MULTIMEDIA Jumadi Suratman; Yetti Meuthia Hasibuan; Rini Halila Nasution; Sumardi Juniawan Sinaga; Suriandi Suriandi
Jurnal Simetri Rekayasa Vol 2 No 2 (2020): Edisi Oktober 2020
Publisher : Universitas Harapan Medan

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CV.Fast Aksara Multimedia is a trading business in the field of furniture furniture that produces elementary student desks, elementary student chairs, teacher desks, teacher chairs, filing cabinets and blackboards. In the production process, there are still various problems including a lot of cutting materials that are not precise in their measurements and receiving raw materials that are not in accordance with company standards. This results in inappropriate products such as elementary school student desks and elementary student chairs. The purpose of this study is to determine the number of products that are not suitable and the costs incurred as a result of these products and can make improvements and reduce products that are not in accordance with the wishes of the company. In this case, the researcher uses the concept of Cost Of Poor Quality in determining internal failure costs and external failure costs in the furniture business. The results of product research that are not in accordance with the company's wishes are 1,068 units with costs incurred of Rp. 293,350,000. As for recommendations for improvements that can be made to reduce the cost of products that are not suitable, reduce precision in the production section and set standards for receiving raw materials and quality control for suppliers.
AN INVENTORY PLANNING AND CONTROL ANALYSED USING ECONOMIC ORDER QUANTITY (EOQ) AND PERIOD ORDER QUANTITY (POQ) METHODS AT UD. MARIADI RANGKA Abdul Aziz Syarif; Yetti Meuthia Hasibuan; Budhi Santri Kusuma
INFOKUM Vol. 10 No. 5 (2022): December, Computer and Communication
Publisher : Sean Institute

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Supplies are always needed by every company, both small companies and large inventories. With the inventory procurement policy, it is expected that the production process can run smoothly. Without an inventory of raw materials, companies are faced with the risk that one day the company will not be able to meet consumer needs. The purpose of this research isdeterminethe number of purchases of raw materials at each order with the lowest costAndknow the right time period to place an order for raw materials by forecasting the need for raw materials in the coming year, with the aim of knowing an overview of needs in the next year. The data studied is in the form of data on raw material needs, data on ordering costs, storage costs, frequency of purchasing raw materials and the number of purchases of raw materials during 2021. Data collection techniques are by way of interviews, observations.This research includes descriptive research (descriptive research). To anticipate undesirable things related to the supply of raw materials, the researcher advises the company to provide a safety stock of 20 pallets and 1 sheet of plywood and place an order again when the raw materials are1,114pallets and 27 sheets of plywood. Based on the conclusions above, the authors provide advice to companies to consider using the POQ method and determine the required raw material requirements, the amount of safety stock and when the company must place an order again so that efficient and effective inventory control can be achieved.
Co-Authors Abdud Azis Syarif Abdul Azis Syarif Abdul Aziz Syarif Abdul Aziz Syarif Ade Rae Salomo Adi Prasatya Agung Al Balad Alda Febriansyah Chaniago Andri Sitorus Anggi Muhaimin Ardilla Ardilla Arma Dani Bagas Sriwanto Budhi Santri Kusuma Denny Walady Utama Deny Satria Diah Elliza Carolina Hutabarat Dimas Pramana Putraa Eddy Eddy Hadad Alwi Hakim Hasibuan Harahap, Uun Novalia Hendri Putra Jaya Gulo Jaka Tri Hadiyatna Jaka Tri Hadiyatna Jekson Priadi Pasaribu Jumadi Suratman Khairul Amri Luthfi Willyanda Putra Muhammad Bayu Taufan Muhammad Fahmi Affandi Muhammad Fazri Nismah Panjaitan Rafika Apriani Pratiwi Rafiqi Pratama Rahmat Wahyu Rahul Ray Riana Puspita, Riana Rini Halila Nasution Riska Amelia Romadon, Muhammad Sekar Ayu Ony Ningrum Silitonga, Putri Elita Siregar, Zufri Hasrudy Sumardi Juniawan Sinaga Suriandi Suriandi Syarif, Abdul Azis Tarigan, Harri Pratama Tri Hadiyatna, Jaka Utama, Denny Wallady Uun Novalia Harahap Wan Krisman Hia Yusuf Fadillah Zaharuddin Zaharuddin Zaharuddin