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Jurnal Ilmiah Teknik Industri
Published by Universitas Muhammadiyah Surakarta
ISSN : 14126869     EISSN : 24604038     DOI : -
Core Subject : Engineering,
Industrial & Manufacturing Engineering
Jurnal Ilmiah Teknik Industri is a scientific journal that aims to participate in developing the scientific field of Industrial Engineering, contains the results of research and theoretical study from lecturers, researchers and industry practitioners. Jurnal Ilmiah Teknik Industri is administered by the Department of Industrial Engineering, Faculty of Engineering, Universitas Muhammadiyah Surakarta and published by the Muhammadiyah University Press (MUP).
Arjuna Subject : -
Articles 766 Documents
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Penerapan Metode Six Sigma Pada Pengendalian Kualitas Air Baku Pada Produksi Makanan Dino Rimantho; Desak Made Mariani
Jurnal Ilmiah Teknik Industri Vol. 16, No. 1, Juni 2017
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v16i1.2283

Abstract

The quality of water as a raw material in the process of food production has an important role. Water quality control is the key in maintaining production. This is the underlying purpose of this study to make improvements in its production activities to reduce the number of defective products in the production process. Water quality control of production is done by specifying several parameters, such as pH, turbidity, and iron. This study uses the concept of Six Sigma DMAIC.Pareto diagram shows water tends to acid, muddy, and contain much iron. Furthermore, the fishbone diagram is used to determine the percentage biggest defect. Improvement performed at the highest RPN value of around 630 in the filter. In addition, the value of sigma level before improvement around 3.3 with the possibility of defects approximately 34491 to a million process. Furthermore, the level of sigma after improvement roughly 4:09 with the possible failure of the process around 5526.
PENENTUAN MATCHING MAKSIMUM PADA GRAF BIPARTIT BERBOBOT MENGGUNAKAN METODE HUNGARIAN Muchammad Abrori; Rina Wahyuningsih
Jurnal Ilmiah Teknik Industri Vol. 11, No. 1, Juni 2012
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v11i1.984

Abstract

Matching is a part of graph theory that discuss to make a pair, that can be used to solve many problems; one of them is the assignment problem. The assignment problem is to make a pair problem for n as the employees and for n as the duties, therefore each employee gets one duty, and each duty is given exactly for each employee. The assignment problem can be solved by determining the matching in weighted bipartite graph through Hungarian Method. It can be determined from the alternating tree of a formed edge. If there is augmenting path, that augmenting path is used to form the more number of matching. If the formed path is alternating path, therefore the process is labeling the new node until finding the augmenting vertices. This matching is called as the perfect matching with the number of maximum weighed side in weighted bipartite graphs. The result matching is the solution for the assignment problem by giving an employee with a duty.
Identifikasi Kebutuhan Pelanggan Terhadap Ikan Asap (Smoked Fish) Dengan Menggunakan Quality Function Deployment Dwi Nurul Izzhati; Tita Talitha; Hasan Mastrisiswadi
Jurnal Ilmiah Teknik Industri Vol. 17, No. 1, Juni 2018
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v17i1.5203

Abstract

Produk hasil pengolahan ikan, terutama ikan asap di Indonesia terus meningkat dari tahun ke tahun. Peningkatan jumlah produksi ikan asap ini harus diimbangi dengan peningkatan kualitasnya agar dapat bersaing di pasar bebas ASEAN (MEA). Selama ini produk ikan asap dalam negeri kurang begitu diminati oleh konsumen serta identic dengan tingkat higienitas dan aspek sanitasi yang kurang baik. Untuk itulah perlu dilakukan identifikasi terhadap kebutuhan konsumen ikan asap untuk dapat meningkatkan kualitasnya. salah satu caranya adalah dengan menggunakan metode QFD (Quality Function Deployment) yang selama ini telah sering digunakan. Dari hasil penelitian yang dilakukan, didapatkan hasil bahwa  variable yang paling fiinginkan dan dibutuhkan konsumen adalah kebersihan dan keamanan untuk dikonsumsi. Sedangkan untuk karakteristik teknis pada ikan asap yang perlu untuk dikembangkan lebih lanjut adalah sistem pengemasannya.
KETERKAITAN ANTARA KOMITMEN AFEKTIF DENGAN INTENSI TURNOVER PADA KARYAWAN BAGIAN PRODUKSI DI PT. USMAN JAYA MEKAR MAGELANG Betty Eliya Rokhmah; Asri Laksmi Riani
Jurnal Ilmiah Teknik Industri Vol. 4, No. 2, Desember 2005
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v4i2.1366

Abstract

This study analyzes the direct effect of affective commitment to the supervisor on turnover intention and the indirect effect of affective commitment to the supervisor and affective commitment to the work group on turnover intention with affective commitment to the organization being mediating variable. By using Structural Equation Modeling (SEM) which assisted by application program of Analysis of Moment Structure (AMOS), the result indicated that affective commitment to the supervisor and work group have indirect effect only on turnover intention. The indirect effect is mediated by affective commitment to the organization. The suggestions for further study and the limitation of this research are discussed.
Pengembangan Algoritma Hybrid Flowshop Three-Stage Dengan Mempertimbangkan Waktu Setup Dana Marsetiya Utama; Annisa Kesy Garside; Wahyu Wicaksono
Jurnal Ilmiah Teknik Industri Vol. 18, No. 1, Juni 2019
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v18i1.7683

Abstract

Hybrid flow shop scheduling is one topic that is often reviewed by researchers at this time. Hybrid flow shop scheduling is the development of problems from pure flow shop. Flow shop problems have one machine at each stage. In this problem, each stage of operation has a machine that is arranged in parallel. This article aims to discuss the issue of hybrid flow shop scheduling at three stage to minimize makespan. Some previous studies discussed scheduling problems by considering setup time. However, such research is generally for the problem of pure flow shop. Therefore, a new algorithm is proposed to solve the problem. The proposed algorithm is developed from the Pour heuristic algorithm. Several experiments were conducted to determine the performance of the proposed algorithm. This study uses ten numerical experiments. This experiment uses the number of jobs varying from 5 jobs to 50 jobs. The results of numerical experiments show that the proposed algorithm has better performance compared to some other algorithms. The proposed method produces an effective solution if it is used to solve problems with a large number of jobs..
Model Persediaan dengan Permintaan Bergantung pada Harga Jual dan Tingkat Persediaan dengan Faktor Deteriorasi Widyoretno Adiani; Dharma Lesmono; Taufik Limansyah
Jurnal Ilmiah Teknik Industri Vol. 18, No. 2, Desember 2019
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v18i2.8749

Abstract

Inventory management and control are needed, especially for retailers, to make their business run smoothly. Inventory management is related to the purchase, storage, and sale of goods. Therefore, the determination of the right amount of inventory in hands is crucial in this situation. Low inventory levels will cause a higher probability of shortage, but on the other hand, having a lot of inventory in hands will incur higher holding costs, extra storage space, and deterioration of goods in hands. In this paper, we propose an inventory model with the inventory and price-dependent demand. We also consider a deterioration factor in our model. There are two models developed in this paper, namely the linear deterioration rate model with constant holding cost and the model of the deterioration rate with Weibull distribution with linear time-dependent holding cost. The purpose of the model is to find the optimal price and ending inventory level that maximizes the average profit. Sensitivity analysis is also performed to find the effect of parameter changes in our model to the optimum solution. We found that model with Weibull deterioration rate and linear holding costs will give a higher average profit.
USAHA PENINGKATAN PRODUKTIVITAS DENGAN PRODUCTIVITY EVALUATION TREE (PET) MODELS Muchlison Anis; Siti Nandiroh; Agung Supriyanto
Jurnal Ilmiah Teknik Industri Vol. 5, No. 3, April 2007
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v5i3.1598

Abstract

Usaha peningkatan produktivitas merupakan suatu langkah menuju perbaikan perusahaan dimasa yang akan datang. Model perencanaan produktivitas Productivity Evaluation Tree (PET) memberikan kemudahan bagi perusahaan dalam mengembangkan dan menilai seluruh alternatif yang mungkin dilakukan dalam menetapkan target peningkatan produktivitas dan usaha peningkatan produktivitas. Dalam penelitian ini alternatif perencanaan ada tiga. Pertama, meningkatkan standart penggunaan bahan baku dari 20% menjadi 30%. Kedua, pengeluaran bahan baku diusulkan sama dengan bulan lalu dengan menerapkan peningkatan standart penggunaan bahan baku sama seperti dengan alternatif pertama, Ketiga, menstimulasi alternatif 2 dengan melakukan manajemen motivasi terhadap tenaga kerja. Dari hasil evaluasi pohon produktivitas maka dapat diketahui estimasi peningkatan produktivitas yang tertinggi adalah alternatif ke tiga dengan perubahan tingkat produktivitas sebesar 0,39.
PENGARUH KOMPENSASI DAN LINGKUNGAN KERJA TERHADAP KINERJA KARYAWAN DIVISI QIP PT. GSI CIANJUR Suharyanto Suharyanto; Ery Nugraha; Hendra Permana
Jurnal Ilmiah Teknik Industri Vol. 13, No.2, Desember 2014
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v13i2.637

Abstract

The role of human resource management is continously improved to enhance the performance of employees. PT GSI, as one of Indonesian company producing shoe products to meet demand from all around the world, needs employees with high performance. On the other side, the employees need reasonable compensation and safe work environments. This research is conducted to investigate the relationships and the effects of the compensation and work environment variables on the job performance. Using causal descriptive research method, samples of 77 units are randomly taken from 328 labors at the Quality Inspection Production Divison. The questionaire comprising eighteen questions is applied to explore the employee minds and perceptions on the relationships and effects of the compensation and work environment variables toward the job performance variable. The result of this research shows that compensation (X1) and work environment (X2) variables simultanously effect to the job performance variable (Y). The linier regression equation constructed is represented by Y = 4,375 - 0,181X1 + 0,382X2.
Evaluasi Konsumen di "RM. Pak Kardi" Pemalang dengan Analisis Diskriminan Tuis Susanto; Suranto Suranto; Much Djunaidi
Jurnal Ilmiah Teknik Industri Vol. 1, No. 3, April 2003
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v1i3.3337

Abstract

Penelitian ini bertujuan mengetahui apakah ada perbedaan yang siqnifikan dalam variabel dependen (Y) yang meliputi konsumen sering Beli (YO), Cukup (Y I) dan Jarang Beli (Y2), serta bertujuan mengetahui perilaku konsumen yang benar-benar berbeda, perbedaan dalam  arti perilaku   mereka  sering  membeli, cukup dan jarang membeli. Metode analisis  yang digunakan adalah dengan Wilk's Lambda, Pairwise, F test. Canonical  corellation,   untuk  mencari ada dan tidak perbedaan antar group variabel dependen dan  menginterpretasikan     berdasarkan function at group centroid untuk mengetahui variabel independen mana yang   menjadi  faktor diskriminannya. Hasil yang didapat dari penelitian ini adalah  bahwa  variabel  menu  merupakan faktor pembeda (diskriminan).  Artinya konsumen grup (sering  beli,  cukup  dan jarang   beli)  tidak terpengaruh   dengan  usia,  harga,  pendapatan,   dan pelayanan  yang  diberikan oleh RM. Pak Kardi ditunjukkan dengan tanda (+) padafunction I. Jadi  konsumen  yang  membeli  di RM. Pak  Kardi adalah  mereka  yang  benar-benar   menyukai menu  (masakan  khas kepiting) RM. Pak Kardi.  Jarak antara  grup  Sering  Beli  dengan grup  Jarang   Beli  adalah yang  terbesar, yakni 7,350. Sedangkan jarak   terkecil   adalah antara grup  Cukup  dengan  grup  Jarang   Beli  (0.522). Dengan demikian dapat  dikatakan   bahwa  Konsumen   di grup  Sering  Beli paling berbeda  selera  Menu  masakannya. Sebaliknya   Menu yang  disukai  oleh  konsumen di RM. Pak Kardi yang termasuk konsumen Cukup mempunyai perbedaan yang  kecil dengan  mereka  yang jarang membeli
Hybrid Henry Gas Solubility Optimization: An Effective Algorithm for Fuel Consumption Vehicle Routing Problem Dana Marsetiya Utama; Baiq Nurul Izzah Farida; Ulfa Fitriani; M. Faisal Ibrahim; Dian Setiya Widodo
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.15640

Abstract

The depletion of non-renewable fuel reserves is the biggest problem in the logistics sector. This problem encourages the transportation sector to increase fuel efficiency in distribution activities. The fuel optimization problem in distribution routing problems is called the Fuel Consumption Vehicle Routing Problem (FCVRP). This study proposes a novel Hybrid Henry Gas Solubility Optimization (HHGSO) to solve FCVRP problems. Experiments with several parameter variants were carried out to determine the performance of HHGSO in optimizing fuel consumption. The results show that the parameters of the HHGSO algorithm affect fuel consumption and computation time. In addition, the higher the KPL, the smaller the resulting fuel consumption. The proposed algorithm is also compared with several algorithms. The comparison results show that the proposed algorithm produces better computational time and fuel consumption than the Hybrid Particle Swarm Optimization and Tabu Search algorithms.

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