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Spektrum Industri
Published by Universitas Ahmad Dahlan
ISSN : 16936590     EISSN : 24422630     DOI : https://doi.org/10.12928/si.vxix.xxx
Core Subject : Science, Social, Engineering,
Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology
Spektrum Industri ISSN 1693-6590(print); ISSN 2442-2630(online) is a Journal that publish scientific articles in the science scope related to engineering and/or industrial management both research and theoretical. Literature review will be considered if it is written by an expert.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 73 Documents
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Ergonomic Risk and Musculoskeletal Disorders in Rice Farmers at Karang Tanjung Village, Karawang Regency Rahdiana, Nana; Suhardiman, Sani; Sukarman, Sukarman
Spektrum Industri Vol. 20 No. 1 (2022): Spektrum Industri - April 2022
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v20i1.34

Abstract

This study discussed musculoskeletal risk analysis related to ergonomics, occupational safety, and health in agriculture in the Karawang district. Musculoskeletal Disorders (MSDs) are occupational diseases that cause pain in the joints. The working position of rice farmers, especially during planting rice seeds and harvesting rice, is not suitable for ergonomics. This study aims to identify the MSDs experienced by farmers in Karang Tanjung village, Karawang district. The study used an analytical method using the Nordic Body Map (NBM) and RULA questionnaires to assess work posture. A sample of 30 workers was chosen for an observational cross-sectional study. The results showed that the ergonomic risk level entered level 4 in the high category. The most dominant MSDs felt by rice farmers in Karang Tanjung village were the waist (98%) and the neck (95%). This research was expected to serve as a model for future musculoskeletal risk reduction research.
NASA-TLX Assessment of Mental Workload in Manufacturing Industry Hermansyah, Muhammad Saddam Akbar; Handayani, Naniek Utami
Spektrum Industri Vol. 20 No. 2 (2022): Spektrum Industri - October 2022
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v20i2.43

Abstract

Mental workload assessment is essential for the optimal interaction of human system in the manufacturing industry. Manufacturing industry engaged in the construction, maintenance, and fabrication service. Performance of the worker will be lower if the higher workload. In the manufacturing industry are two type of workers that mainly involved in the fabrication process such as operator and welder. In This process was found several defects in the finished good which caused the company to suffer losses. Fatigue due to overtime work for seven days and a high mental workload. The aim of this study was to measure the mental workload in the manufacturing industry. In This study was performed on 10 worker in the operator and welder. Mental workload were assessed using NASA Task Load Index (NASA-TLX) and Fault Tree Analysis (FTA) tools. One operator workers and one of welders belonged to the heavy workload category. Finally, NASA-TLX was significantly higher for operator and welder. High mental workload in the manufacturing industry indicated the defection on mental workload. It is recommended to fixes are evaluating and updating rule work, system work, and existing SOP
Integrated Saving Matrix - Branch And Bound Method to Optimize Sugar Product’s Distribution Route Devanda, Ryan Rafli; Pulansari, Farida
Spektrum Industri Vol. 20 No. 2 (2022): Spektrum Industri - October 2022
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v20i2.50

Abstract

The problem in product delivery is always being late and the company has not utilized the capacity of distribution transportation equipment to the fullest. This study aims to determine the shortest distribution route and minimize distribution costs using the Saving Matrix -Branch and Bound methods. In this study, the Saving Matrix method use to produce the shortest route distance, while the Branch and Bound method is applied to optimize a route distance. The results found that the Saving Matrix method followed by the Branch and Bound method reduced routes from the previous seven routes to five routes. Meanwhile, The proposed distribution model shortens the route of 23.6% compared to the current, and cost savings is 23%. To conclude, the model of distribution distance affects the costs savings and optimum route
Lighting Factor Analysis to Reduce Employee Eye Fatigue Using an Ergonomic Approach Majid, Nurul Janatim; Sokhibi, Akh.; Tauhida, Dina
Spektrum Industri Vol. 20 No. 2 (2022): Spektrum Industri - October 2022
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v20i2.52

Abstract

PT Semen Gresik is a company that produces cement with various units, one of which is a production plan and control unit whose job is to plan and evaluate work processes. The problem that exists in the production plan and control office space is the intensity of the lighting in the office space is not under the SNI Lighting standard. 16-7062 2004 for an office space of 350 lux. This can cause eye fatigue which can affect the condition of employees at work. Measurement of eye fatigue using the Visual Fatigue Index (VFI) questionnaire. The subjects of this study were all employees of the production plan and control work unit of PT Semen Gresik. The results of the measurement of eye fatigue are 4 out of 5 employees who experience eye fatigue, and the results of the calculation of the need for lamps require 8 lamps with 36 watts of power and white/daylight color temperature to achieve room lighting standards.
Barrier Factors Model of Innovation Process in the Furniture Industry Supply Chain (Case Study at PT. Duwa Atmimuda) Pratiwi, Wiwik; Primadasa, Rangga; Asri, Vikha Indira; Waluyo , Wisnu Budi
Spektrum Industri Vol. 21 No. 1 (2023): Spektrum Industri - April 2023
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v21i1.55

Abstract

PT. Duwa Atmimuda is a company engaged in manufacturing in producing stainless metal products and furniture frames. PT. Duwa Atmimuda is experiencing problems with the lack of application of technology in terms of marketing, seen from the absence of social media utilization, causing the company to find it difficult to expand market share. This study aims to identify the factors that hinder the company's innovation process using the Interpretive Structural Modeling (ISM) method and classify the model using MICMAC Analysis. The results showed that the ISM model of the barrier factor for the innovation process in the furniture industry supply chain has 6 levels. After the ISM model is obtained, the next process is to classify each variable indicator on the barrier factors of the innovation process with the help of MICMAC analysis. There are 4 classification clusters, the first cluster (autonomous indicators) has one indicator. While in the second cluster (dependent indicators) there is one indicator. In the third cluster (linkage indicators) there are 9 indicators. In the fourth cluster (independent indicators) there is one indicator. The third cluster (linkage indicators) is the highest cluster of indicator spreads where this indicator has high control and dependence. The conclusion of this study is that there are 12 inhibiting factors in the innovation process which are arranged into six levels of the ISM model and in the MICMAC analysis the third cluster is the highest distribution cluster.
Market and Industrialization Opportunities of Rumah Unggul Sistem Panel Instan (RUSPIN) Technology Using Business Model Canvas Pramitaningrum, Erlita; Nugraha, Dimas Hastama
Spektrum Industri Vol. 21 No. 1 (2023): Spektrum Industri - April 2023
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v21i1.58

Abstract

Rumah Unggul Sistem Panel Instan (RUSPIN) technology is the development of Rumah Instan Sederhana Sehat (RISHA) with several improvements. Besides resistance to earthquakes, this technology has advantages such as ease and speed of installation compared to conventional houses. As a new technological innovation that has been proven, to develop RUSPIN technology to be an industrialization model in the future, therefore a study of technology business plan is required. Research objectives eager to see the market and industrialization opportunities of RUSPIN technology. The study using Business Model Canvas (BMC) concept which strived to combine 9 business aspects such as customer segments, value proposition, channels, customer relationships, revenue streams, key resources, key activities, key partners, and cost structure into one complete concept map. As the result of this study, the market opportunity for RUSPIN technology is very large with the market segmentation is families that do not own a home and the target market for Low-Income Families (MBR). RUSPIN technology also has an opportunity to be industrialized by looking at the demand side (market opportunities), while from the supply side, efforts are needed to increase the number of certified RUSPIN applicators and developers.
Quality Function Deployment in Healthcare: Systematic Literature Review Sukma, Dias Irawati; Stiawan, Indra; Kurnia, Hibarkah; Purba, Humiras Hardi
Spektrum Industri Vol. 20 No. 2 (2022): Spektrum Industri - October 2022
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v20i2.62

Abstract

More specific knowledge about Quality Function Deployment (QFD) has grown rapidly. There are many studies on the application of QFD in various industrial sectors including manufacturing, construction and services. QFD is a tool that can be used to assist companies in improving services by translating consumer desires into the technical characteristics of the company. This paper aims to provide a broad understanding and knowledge of the application of QFD in the healthcare industry. The approach used is Systematic Literature Review. This paper involves a review study of various papers from well-known databases related to the implementation of QFD in the healthcare industry. This paper provides benefits for researchers and practitioners to add insight and references for studies related to QFD in health services
A Study on the Technology Content Assessment Based on Aspects of Food Safety in the Food Ingredient Company Aji, Permadi Bayu; Wahyuni, Hana Catur
Spektrum Industri Vol. 20 No. 2 (2022): Spektrum Industri - October 2022
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v20i2.67

Abstract

Technological complexity assessment is one of ways to implement the continuous improvement process. This company is a food ingredient company that assure that their products do indeed meet customer requirements of food safety and quality. This study aims to assess the level of technological sophistication based on food safety aspects using technometric and AHP integration. Technological assessment is carried out on the production process of pregelatinized starch as premium and specialty product and its supporting processes within the company. The technometric approach will assess the level of sophistication of each technology component (technoware, humanware, infoware, and orgaware). And AHP is used to determine the contribution of each technology component. After that, computation of the technology contribution coefficient is done to determine the company’s technology level. The results showed that the highest to lowest value of the contribution of sophistication of each component of technology is orgaware with a sophistication value of 1.064, then infoware with a value of 1.047, followed by humanware 0.868, and lastly is the technoware component which is 0.692. The TCC value of the company is 0.909 which indicates that the company has a highly sophisticated technological with modern technology levels.
Study Experimental the Quality of Tombstones by Utilizing Coconut Fiber Using Seven Tools Rosyidi, Moh Ririn; Narto
Spektrum Industri Vol. 20 No. 2 (2022): Spektrum Industri - October 2022
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v20i2.74

Abstract

Product quality in the production process is important, where consumer needs for the quality of the products produced will be better or better by going through existing processes and innovations in products that can make products that were originally good become better. The quality improvement on the tombstones at UMKM_SADAR Gresik has problems in terms of unstable quality and there are defects with thin cracks, small at the corners. there are several factors that need to be considered, namely in the fish bone diagram on human factors, methods, materials, the environment, namely the need for skills training/training for the process of making the tombstone and adding raw materials by utilizing the addition of coconut fiber to improve quality in the compression test and can reduce the potential for thin cracks, chipping at the corners of tombstones and monitoring worker evaluations
Robust Controller Numerical Design for Reinforced Concrete Structures Under Seismic Excitation Conditions Chen, Tim; Crosbie, Robert C.; Anandkumarb, Azita; Melville, Charles; Chen, J; Nguyen , T
Spektrum Industri Vol. 20 No. 2 (2022): Spektrum Industri - October 2022
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v20i2.77

Abstract

The article discusses driver optimization design issues that combine the evolution of artificial intelligence of the bat optimization algorithm with fuzzy drivers to enable practical applications in construction. The designation of system controllers includes various subsections such as initial system parameters, EB optimization algorithm, cloud controllers, stability analysis, and excitation sensors. The advantage of this design is the integrated H2 / H output of a robust strategy for certain systems with continuous and polyhedral uncertainties f or. The asymptote was obtained by adjusting the design parameters with the help of correction criteria. Numerical verification of the time and frequency domain shows the new system design to accurately predict and control the structural displacement reactions required to actively control each model structure . The Genetic Algorithm Test technique uses the Hurwitz Matrix Functional Structure hierarchy for hierarchical conditions and measures of exacerbation of effect. This article proposes any type of dynamic controller to obtain the optimal power structure required for active control of nonlinear structures. This method has shown favorable results in the resolutions of closed systems.

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