Publisher: Universitas Muhammadiyah Surakarta   (Total: 33 journals)   [Sort alphabetically]

Showing 1 - 33 of 33 Journals sorted by number of followers
JRAMathEdu : J. of Research and Advances in Mathematics Education     Open Access   (Followers: 5)
J. of Community Services and Engagement     Open Access   (Followers: 2)
Pharmacon : Jurnal Farmasi Indonesia     Open Access  
Emitor : Jurnal Teknik Elektro     Open Access  
Media Mesin : Majalah Teknik Mesin     Open Access  
Sinektika : Jurnal Arsitektur     Open Access  
Iseedu : J. of Islamic Educational Thoughts and Practices     Open Access  
J. of Nutraceuticals and Herbal Medicine     Open Access  
Profetika Jurnal Studi Islam     Open Access  
Komuniti : Jurnal Komunikasi dan Teknologi Informasi     Open Access  
J. of Islamic Economic Laws     Open Access  
Indonesian J. on Learning and Advanced Education     Open Access  
Kajian Linguistik dan Sastra     Open Access  
Law and Justice     Open Access  
Suhuf     Open Access  
Jurnal Varidika     Open Access  
Benefit : Jurnal Manajemen dan Bisnis     Open Access  
Jurnal Kesehatan     Open Access  
Jurnal Jurisprudence     Open Access  
Jurnal Manajemen Dayasaing     Open Access  
Biomedika     Open Access  
Manajemen Pendidikan     Open Access  
Indigenous : Jurnal Ilmiah Psikologi     Open Access  
Riset Akuntansi dan Keuangan Indonesia     Open Access  
Forum Geografi     Open Access  
Tajdida : Jurnal Pemikiran dan Gerakan Muhammadiyah     Open Access  
Jurnal Pendidikan Ilmu Sosial     Open Access  
Warta LPM     Open Access  
Bioeksperimen : Jurnal Penelitian Biologi     Open Access  
Profesi Pendidikan Dasar     Open Access  
Khazanah Informatika     Open Access  
Jurnal Ekonomi Pembangunan : Kajian Masalah Ekonomi dan Pembangunan     Open Access  
Jurnal Ilmiah Teknik Industri     Open Access  
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Jurnal Ilmiah Teknik Industri
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1412-6869 - ISSN (Online) 2460-4038
Published by Universitas Muhammadiyah Surakarta Homepage  [33 journals]
  • An Energy-Efficient No Idle Permutations Flow Shop Scheduling Problem
           Using Grey Wolf Optimizer Algorithm

    • Authors: Cynthia Novel Al-Imron, Dana Marsetiya Utama, Shanty Kusuma Dewi
      Pages: 1 - 10
      Abstract: Energy consumption has become a significant issue in businesses. It is known that the industrial sector has consumed nearly half of the world's total energy consumption in some cases. This research aims to propose the Grey Wolf Optimizer (GWO) algorithm to minimize energy consumption in the No Idle Permutations Flowshop Problem (NIPFP). The GWO algorithm has four phases: initial population initialization, implementation of the Large Rank Value (LRV), grey wolf exploration, and exploitation. To determine the level of machine energy consumption, this study uses three different speed levels. To investigate this problem, 9 cases were used. The experiments show that it produces a massive amount of energy when a job is processed fast. Energy consumption is lower when machining at a slower speed. The performance of the GWO algorithm has been compared to that of the Cuckoo Search (CS) algorithm in several experiments. In tests, the Grey Wolf Optimizer (GWO) outperforms the Cuckoo Search (CS) algorithm.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.17634
      Issue No: Vol. 21, No. 1 (2022)
  • Decision Support System for Determining Flood Evacuation Locations in
           Kabupaten Bandung Using the Simple Additive Weighting (SAW) Method

    • Authors: Rani Gusti Angesti, Arieftyarto Taufik Ramadhan, Fifin Nur Hanifah, Grace Agustina, Afrin Fauzya Rizana, Amelia Kurniawati
      Pages: 11 - 20
      Abstract: West Java Province is one of the provinces with the most flood disasters, which is 863 times and the highest number of floods occurred in Kabupaten Bandung is 228 times. Because floods often occur in Kabupaten Bandung make BPBD (Badan Penanggulangan Bencana Daerah) must respond to this problem, including by choosing a quick evacuation location. Choosing an appropriate evacuation route is very helpful in reducing losses and especially saving people's lives. So we need a computer-based system that can help BPBD in determining which location is most suitable as an evacuation location in Kabupaten Bandung by using the SAW (Simple Additive Weighting) method. This method is a simple weighting method or additional weighting to solve problems in a decision support system. The results of this study are a rank of recommendations for evacuation locations in Kabupaten Bandung. To test the feasibility and suitability of the system, a BlackBox test and user acceptance test was carried out.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.15819
      Issue No: Vol. 21, No. 1 (2022)
  • An Immersive Virtual Reality System For Practicum Chair Assembly Training
           To Increase Effectiveness of PPTI 2

    • Authors: Vani Aditiya Nur Huda, Susy Susmartini, Lobes Herdiman
      Pages: 21 - 26
      Abstract: The implementation of practicum chair assembly training in PPTI 2 still uses conventional method training. The use of conventional methods has some drawbacks including high resource requirements when starting out and requires an experienced coach who should always be there whenever there is training. The use of conventional methods in the training of practicum chair assembly is considered less effective. There needs to be other alternatives in practicum chair assembly training. The alternative chosen is training using Virtual reality (VR).  This paper contains a comparison between training using conventional methods and using virtual reality. That proves training uses VR more effectively than training with conventional methods.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.17300
      Issue No: Vol. 21, No. 1 (2022)
  • Solving Capacitated Vehicle Routing Problem Using Football Game Algorithm

    • Authors: Alfian Alif, Annisa Kesy Garside, Ikhlasul Amallynda, Baiq Nurul Izzah Farida Ramadhani
      Pages: 27 - 36
      Abstract: The Capacitated Vehicle Routing Problem (CVRP) plays an important role in the logistics transportation sector. Determining the proper route will reduce the company's operational costs. In CVRP, a number of vehicles have a capacity limit that can serve all customers. This research completes a real case study on a bottled drinking water company where the company still uses the subjective method of the driver to determine the transportation route. Based on the conditions in the company, the selection of the best route will consider vehicle capacity and demand to determine the shortest route. The execution of this case study uses the Football Game Algorithm (FGA) which was first initiated by Fadakar & Ebrahimi which proved promising and had the strongest performance in all cases. FGA is expected to be able to determine the shortest distribution route from the existing cases to reduce the distribution costs incurred. This study takes data from 4 days of delivery that served 78 customers. The average daily transportation cost savings result is 42%. This amount indicates that the FGA algorithm is effective for completing a real case study in CVRP.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.15812
      Issue No: Vol. 21, No. 1 (2022)
  • Modeling Underlying Pattern Making Construction Safety Risk Mitigation
           Decisions Using Dynamic Systems

    • Authors: Aswan Munang, Isnaini Nurisusilawati
      Pages: 37 - 48
      Abstract: The Occupational Health and Safety Management System (SMK3) is one of the factors that must be always monitored during the implementation of construction in achieving the success of project objectives. The implementation of SMK3 and decision-making still comes from project actors with different levels of experience gaps, causing the decisions taken to be less systematic and affecting the productivity of project performance. The purpose of the research is to conduct risk management simulations to increase insight into risk management and mitigation as a support for appropriate decision making in supporting project productivity, quality, and cost.Risk identification process through brainstorming, interviews, and observations with competent resource persons and project actors who have more than 5 years of experience in railway projects. Risk identification generates parameters and measures project risk by processing data using SPSS V23 software and dynamic simulation using Vensim PLE software. Simulation shows that there is a decrease in risk parameters in design and technology by -6.29%, construction management -5,12%, work safety and environment -5,90%, materials and equipment 3,37% and logistics -6,23%. Management of SMK3 by combining methods can increase accuracy in making risk mitigation decisions and can improve and understand the complexity of overall risk management performance from time to time.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.17429
      Issue No: Vol. 21, No. 1 (2022)
  • Proposed Determination of Work Criteria Standards on OMAX Ratio
           Performance to Increase Productivity

    • Authors: Umi Tri Utami, Utaminingsih Linarti, Annie Purwani, Susanto Sudiro
      Pages: 49 - 62
      Abstract: This study focuses on measuring the productivity of PT.X, especially the welding and painting unit, based on the total realization of production, several employees, working hours, overtime hours, and lost hours of employees. The purpose of this study is to propose a strategy for improving the productivity ratio of the welding and painting unit, which is still below the standard by setting performance criteria standards. The method used is the objective matrix (OMAX) and root cause analysis (RCA) which is carried out using six ratios of productivity measurement and looking for the root cause of the ratio at a level below the standard. The results show that three ratios are still below the standard of the six productivity measurement ratios, such as ratios 2, 3, and 5. These ratios need to be improved by increasing the realization of production results, reducing the number of absent workers, and reducing the total working hours of employees every month. Based on the study results, improvements in the three ratios were able to increase the productivity index of PT.X's welding and painting units.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.17432
      Issue No: Vol. 21, No. 1 (2022)
  • Development of Two-Stage Transportation Problem Model with Fixed Cost for
           Opening the Distribution Centers

    • Authors: S. Santoso, Rainisa Maini Heryanto
      Pages: 63 - 71
      Abstract: The Two-Stage Transportation Problem (TSTP) is a model of product transportation in the supply chain. The transportation starts from the factory to customers through a distribution center (DC), which considers the fixed cost of opening a DC, the transportation cost per unit from a certain factory to a certain DC, and the transportation cost per unit from a certain DC to certain customers. This study develops a model by allowing direct delivery from the factory to the customer. From the numerical example given, the proposed model that allows direct delivery from the factory to a customer could result in a total distribution cost that is minimized to the initial model. Both models were compared with calculation using Lingo 19.0. The model developed is expected to provide options and consideration for the management to determine the right distribution and logistics strategy for their products.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.17571
      Issue No: Vol. 21, No. 1 (2022)
  • Design of Affordable Cold Storage for Horticulture Products (Urban Farming
           “Mom's Farm” in Sampora Village)

    • Authors: Ferdian Suprata, Christine Natalia, Djoko Setyanto, Budi Kartadinata, Victoria Principall
      Pages: 72 - 82
      Abstract: Growing the world’s population to almost 9.7 billion by 2050 will continue to address the challenges facing the food and agriculture sector. The aim of this study is to reduce food losses in Sampora Village, Cisauk – South Tangerang by creating an affordable cold-storage of Modified Atmosphere Storage (MAS) equipment with a capacity of 4.77 m3 so that it can increase the quality of food for a longer period without deterioration of the horticultural products stored. Temperature control, humidity control, air circulation, maintenance of space between containers for adequate ventilation, total capacity, dimensions, efficiency, development costs, durability, performance, and features are involved in the design. This cold storage is designed with a Design Thinking method. A qualitative research was conducted through interviews to gain insight and synthesize the needs. The selection prototype concept was chosen by the Pugh Matrix and finally this study proposed in an affordable cold-storage technology.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.13926
      Issue No: Vol. 21, No. 1 (2022)
  • Improved Warehousing Performance Using the Frazelle Model in Pharmacies
           During a Covid-19 Pandemic

    • Authors: Syarif Hidayatuloh, Atik Febriani, Guntur Samodro, Titi Indarwati
      Pages: 83 - 90
      Abstract: In order for warehousing performance to remain at the standard, it is necessary to monitor the performance in the warehousing area, such as utilization and quality of goods in the warehouse, to increase the value of a company. Several drug retailers in Indonesia, especially in the Yogyakarta area, have not yet measured the performance of their warehousing activities, so it is not clear what improvements need to be made. With a comprehensive monitoring activity of warehousing activities, it can support the company to obtain helpful information that can help improve the performance of ongoing operations. This study was conducted to determine the performance position using the Frazelle model during the covid 19 pandemic in a drug retail business or pharmacy so that researchers can provide recommendations for improvements that can improve warehouse performance. The performance for the warehouse has a warehouse performance value of 55.60 and is included in the Average category. This recommendation can also be used as a benchmarking reference for other industries.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.17182
      Issue No: Vol. 21, No. 1 (2022)
  • Method of Selecting Gloves Based on Pressure on The Palms Using A
           Measuring Instrument with A Force Sensing Resistor

    • Authors: Ranu Tri Widodo, Lobes Herdiman, Susy Susmartini
      Pages: 91 - 96
      Abstract: Assembly is a common activity in manufacturing companies. The use of handtools during assembly creates pressure on the palms surface which can lead to injury. To reduce the risk of injury, operators need to use gloves as personal protective equipment. Regardless of the general function of the glove, the type of glove tends to be chosen specifically for each task. But there is no specific method to determine the right gloves for certain activities. It is important to know the effect of using gloves on the palms surface during work activities. So this study aims to design a measuring instrument that can determine the pressure on the palm surface during activities by wearing gloves. This is done in order to be able to choose the right gloves for assembly. The result shown that during assembly the areas on the palms receive different pressure. Areas of the palms that receive the greatest pressure are the distal phalanx, and proximal phalanx on the index, middle, ring and little fingers. Pressure on the palms surface differs depending on the type of glove used. This may be due to the thickness of the glove, the thinner the glove, the greater the pressure on the palms surface. Assembling the chair using leather gloves has the lowest pressure value compared to other gloves. The pressure value on the palms surface when wearing leather gloves during the assembly of the chair is 262.15 N, 40% lower than the assembly without using gloves.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.17320
      Issue No: Vol. 21, No. 1 (2022)
  • An Ergonomic Intervention to Redesign Fish Smoking Device of Home Industry

    • Authors: Robert Hutagalung, Victor Oryon Lawalata, Nikmans Hattu
      Pages: 97 - 103
      Abstract: Smoke and heat become the contributors for increasing temperature and humidity in the production room, and workload of workers, and decreasing work productivity of a smoked fish home industry in Hative Kecil Village, Ambon City, Indonesia. This paper was aimed to redesign a fish smoking device with ergonomic consideration for solving the problem. An ergonomic intervention method applied to redesign the device. Redesign process describe result of ergonomic assessment in to the stages of rational method in order to produce new design. Despite the environmental variable (temperature and humidity), 10 male workers (age 40-50 year) were assessed their characteristics consisting of personal, anthropometric, workload and work productivity data. Final results presented a decreasing temperature (15.03%), humidity (8.06%), and workload of workers (75.89%) while work productivity increased 88.92%. It concluded that the device redesign can improve temperature, humidity, workload of workers and work productivity in the smoked fish home industry.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.17434
      Issue No: Vol. 21, No. 1 (2022)
  • Solving the Capacitated Vehicle Routing Problem with Heterogeneous Fleet
           Using Heuristic Algorithm in Poultry Distribution

    • Authors: Yulinda Uswatun Kasanah, Nabila Noor Qisthani, Aswan Munang
      Pages: 104 - 112
      Abstract: The problem that is often experienced in the delivery of goods from distributor to the destination is the delivery route that is not sufficient with the vehicle's capacity. This matter is crucial because it can affect the clients' trust on the shippers in the distributor. This problem can be analyzed using Capacitated Vehicle Routing Problem (CVRP) with Clarke and Wright Algorithm. This research begins with determining the distance between all coordinates with Euclidean Distance, making the distance matrix between places to go. After that, the calculation CVRP using Clarke and Wright Algorithm is exected in this study, a calculate CVRP using Clarke and Wright algorithm can help of Python. The study was conducted at 16 customers coordinates, the results obtained by 4 routes with total load 4751 kg and distance 436 km. Route of delivery the first route 924 kg load and distance 80 km, second route 962 kg load and distance 112 km, third route 1450 kg load and distance 144 km, and the fourth route 1415 kg load and distance 100 km.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.17430
      Issue No: Vol. 21, No. 1 (2022)
  • Ergonomic Risk Evaluation of Manual Material Handling in Brick Production

    • Authors: Indah Pratiwi, Valeska Salsabil Kalyana
      Pages: 113 - 124
      Abstract: The manual material handling (MMH) activity of making bricks causes workers to use energy throughout their body to do work so that it can pose a potential ergonomic hazard. Ergonomics hazards caused are fatigue in the muscles due to repetitive movements, poor work posture, too heavy load, inadequate tools, unsupportive environmental conditions. Complaints of Musculoskeletal disorders (MSDs) that accumulate will have a major impact on bone structure disorders and muscle disorders.The purpose of this study was to evaluate the ergonomic risks and complaints of MSDs in MMH activities using a trolley. The research method used is the risk assessment of pushing and pulling (RAPP) tool and Nordic body map (NBM). The RAPP Tool consists of 9 assessments with a rating scale of good, reasonable, poor and unacceptable. Furthermore, using the NBM which mapped 28 body parts with a rating scale of no pain, moderately ill, sick and very sick.The results of the study contained 3 assessments of the RAPP Tool with the highest score, including floor surface, posture, and condition of the tool. The results of the NBM found that the body parts that often felt complaints were the back, waist, buttocks, left knee, right knee, left leg and right leg. The conclusion is that workers with high RAPP scores have an impact on high levels of muscle complaints so that improvements need to be made immediately to reduce ergonomic risks to workers.
      PubDate: 2022-06-30
      DOI: 10.23917/jiti.v21i1.17010
      Issue No: Vol. 21, No. 1 (2022)
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