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All Journal Jurnal Rekavasi JURNAL REKAYASA SISTEM INDUSTRI Teknosains : Jurnal Sains,Teknologi dan Informatika Journal of Industrial and Engineering System
Ratih kumalasari
Universitas Bhayangkara Jakarta Raya
Agriculture, Biological Sciences & Forestry Automotive Engineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Transportation

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Optimasi Biaya Transportasi Rantai Roda Tipe-428 dengan Metode Stepping Stone dan Modified Distribution Rifda Ilahy Rosihan; Muhammad ferdiansyah dwi rizky; Paduloh Paduloh; Yayan saputra; Ratih kumalasari; Widya spalanzani; Helena Sitorus
JURNAL REKAYASA SISTEM INDUSTRI Vol 7 No 2 (2022): (Mei 2022)
Publisher : Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/jrsi.v7i2.5481

Abstract

Ketidapastikan alokasi pendistribusian produk rantai roda tipe-428 mengakibatkan tinggi nya biaya transportasi sehingga perlu dilakukan pengoptimalan biaya tranpsortasi untuk mengurangi pemborosan. Pendistribusian produk rantai roda tipe-428 ke beberapa customer. Pendistribusian produk rantai roda tipe-428 ke beberapa customer dengan permintaan masing-masing customer yang berbeda dan jumlah yang besar dengan rata-rata permintaan  terbesar customer adalah 234.609. Penelitian ini dilakukan guna menemukan solusi optimal untuk menemukan biaya transportasi yang optimal. Metode yang digunakan pada penelitian ini metode North West Corner (NWC), Least Cost, dan Vogel Approximation (VAM), dengan metode yang terpilih adalah Least Cost dan VAM karena biaya yang dihasilkan oleh kedua metode tersebut yang paling optimum dan menghasilkan total biaya yang sama. Kemudian, mencari solusi optimum dengan membandingkan biaya yang optimum menggunakan metode Stepping Stone dan metode MODI (Modified Distribution). Hasil dari pencarian solusi optimum dengan kedua metode ini didapatkan hasil yang sama sehingga dipilih metode stepping stone untuk mencari solusi optimum. Kemudian dilakukan pengecekan dengan menggunakan software LINGO untuk mengetahui hasil yang didapatkan dari perhitungan manual sudah sesuai. Dari hasil perhitungan yang dilakukan didapatkan penurunan biaya sebesar 33,17%.
ANALISIS PERILAKU KONSUMEN DALAM MEMUTUSKAN MINIMARKET SEBAGAI TEMPAT BERBELANJA Yayan Saputra; Rifda Ilahy Rosihan; Widya Spalanzani; Ratih Kumalasari; Hany Riyanti
Jurnal Rekavasi Vol 10 No 1 (2022)
Publisher : Jurusan Teknik Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/rekavasi.v10i1.3880

Abstract

Penelitian ini bertujuan untuk menganalisis faktor-faktor yang mempengaruhi perilaku konsumen terhadap pengambilan keputusan dalam memilih minimarket sebagai tempat berbelanja (Studi kasus pada Masyarakat kecamatan Tigaraksa). Penelitian ini merupakan penelitian kuantitatif dengan pengolahan data menggunakan software SPSS 26 dengan jumlah sample 100 responden yang merupakan masyarakat kecamatan Tigaraksa dan 28 variable. Hasil dari penelitian ini diperoleh delapan faktor dengan faktor tertinggi adalah faktor lokasi, kemudian diikuti faktor harga, produk, sosial, promosi, pelayanan, pribadi dan faktor terakhir faktor budaya dengan nilai eigen value 1,008
Faktor-Faktor yang Mempengaruhi Kualitas Pelayanan Publik pada Kantor Kelurahan Klabinain Aimas Kabupaten Sorong Provinsi Papua Barat Ida Ayu Putu Cindi Pratiwi; Widya Spalanzani; Yayan Saputra; Rifda Ilahy Rosihan; Ratih Kumalasari; Masjuli
Journal of Industrial and Engineering System Vol. 3 No. 2 (2022): Desember 2022
Publisher : Program Studi Teknik Industri, Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/jies.v3i2.1574

Abstract

Human resources or commonly referred to as HR is one of the important resources in a government and is often referred to as the spearhead to achieve goals in a government, as well as the facilities used in carrying out public services. Therefore, a government agency requires high-performing human resources and adequate facilities so that it can achieve the goals set by eachagencyrelated to carrying out public services. However, human resources and facilities at the Klabinain Village Office not very effective so that they have not been able to carry out public services properly. From this, the problem of this research is will examine the factors that affect the quality of public services at the Klabinain Aimas Village Office, Sorong Regency, West Papua Province. This research aims to determine whether or not the influence of human resources and facilities on the quality of public services at the Klabinain Aimas Village Office, Sorong Regency, West Papua Province. This research is a quantitative research. This researce was conducted for two months, namely November to December 2021.The sample in this study amounted to 123 people with the sampling technique using simple random sampling. Data collection techniques were carried out through questionnaires and literature study. Hypothesis testing using classical assumption test and simple regression analysis using the IBM SPSS Ver 26 application to determine the contribution of the independent variable to the dependent variable at the 95% trend level (α = 0.05). The results of the research are as follows: 1) there is no positive and significant influence between human resources on public services at the Klabinain Aimas Village office, Sorong Regency, West Papua Province. 2) there is no positive and significant effect between facilities and public services at the Klabinain Aimas Village office, Sorong Regency, West Papua Province.and 3) there is a significant effect between human resources and facilities if tested simultaneously on public services at the Klabinain Aimas Village office, Sorong Regency, West Papua Province.
Analysis of raw material inventory control for hinge upper assembly products using the economic order quantity method Rifda Ilahy Rosihan; Suci Trisa Kartika; Jasan Supratman; Paduloh; Ratih Kumalasari
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 11 No 1 (2024): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK-Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v11i1.829

Abstract

Every business, but particularly those in the industrial sector, have what is known as inventory. In order for the business to survive and carry on with production, inventory is crucial. Inventory control makes sure that products and resources don't run out of stock or become overstocked, which could lead to higher inventory costs and a halt in production. A business engaged in manufacturing is called PT. X. Hinge Upper Assy is one of the products that PT. X manufactures. Overproduction of raw materials caused issues for the hinge upper assembly material during the process, raising the overall cost of inventory. The EOQ (Economic Order Quantity) approach is one inventory control technique that determines overall inventory costs. The EOQ approach takes into account the frequency of orders, the amount of orders per order, safety stock, and reorder points in addition to inventory costs. The purpose of this study was to determine the overall cost of inventory at PT. X using the EOQ approach, as well as the frequency and quantity of orders, safety stock value, and reorder points. The study's findings indicate that the overall cost of inventory with EOQ is IDR 2,500,752.00, with a frequency of orders placed twice and a quantity per order of 20167 pieces, safety stock of 3242.28, and a reorder point of 3257 pieces. When comparing the EOQ approach to the company's traditional method, there was a 63% savings in total inventory expenses.
Co-Authors Hany Riyanti Helena Sitorus, Helena Ida Ayu Putu Cindi Pratiwi Jasan Supratman Masjuli Muhammad ferdiansyah dwi rizky Paduloh Paduloh Rifda Ilahy Rosihan Suci Trisa Kartika widya spalanzani Yayan Saputra