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INDONESIA
SPEKTRUM INDUSTRI
Published by Universitas Ahmad Dahlan
ISSN : 16936590     EISSN : 24422630     DOI : -
Core Subject : Engineering,
Industrial & Manufacturing Engineering
Spektrum Industri is a media published 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. Spektrum Industri is published by Universitas Ahmad Dahlan in twice a year, every April and October. 5. Scope : Ergonomic, Work System Design and Product Design, Manufacturing System, Quality Management, Operationsal Research System Modeling, Industrial Management, Decision and Information System, Logistics and Supply Chain Management.
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 10 Documents
 1 
Search results for , issue "Vol 18, No 1: April 2020" : 10 Documents clear
DESIGN OF AN ERGONOMIC TROLLEY FOR PLATE HANDLING TASK USING OVAKO WORKING POSTURE ANALYSIS AND ERGONOMIC FUNCTION DEPLOYMENT Merry Siska; Muhamad Hifni Syahbana
Spektrum Industri Vol 18, No 1: April 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i1.13225

Abstract

The appointment of catering dishes at Dian Rasa Catering is currently still done manually by hand. Slouching work posture when lifting plates increases the risk of muscle and spinal injuries in workers. One way that can be done is to design ergonomic plate lifters. The design of an ergonomic trolley uses the Ergonomic Function Deployment (EFD) method. The attributes used are based on ergonomic aspects, which are effective, comfortable, safe, healthy, and efficient. Based on the attributes used, it can be seen the desires and needs of consumers for products which are then integrated with the technical characteristics of the tool. Obtained the results of the design of a catering plate lifter in the form of 3 plate racks with a radius of 21 cm that can accommodate 20 plates and trolleys with a height of 125 cm and the size of the trolley handle that can be adjusted according to the smallest body size (118 cm), on average (125 cm) ) and maximum (132 cm). The results of the experimental an ergonomic trolley help the employee to lift the plate, improve time efficiency and reduce the risk of muscle and bone injury to the catering employee. After the use of plate lifting tools catering harvest workers labor posture scores using the OWAS method dropped to 1.
OPTIMALISASI PENENTUAN BIAYA MINIMUM PADA PENGENDALIAN PERSEDIAAN BAHAN BAKU DENGAN MENGGUNAKAN METODE DYNAMIC PROGRAMMING (STUDI KASUS DI PT. XYZ) Vivin Nur Oktavianty; Tedjo Sukmono
Spektrum Industri Vol 18, No 1: April 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i1.10972

Abstract

PT. XYZ is a manufacturing company that produces semi-finished goods, that is imitation leather (PVC). This company has inventory problem in their production process, that is raw material shortages.  The purpose of this study was to determine the amount of calcium carbonate raw materials purchased by PT. XYZ with optimal costs. Before using this Dynamic Programming, the cost of buying raw materials is Rp. 7,345,000,000. From the results of planning the purchase of raw materials for the next 12 periods (January-December 2018) are 1184, 1185.5, 1187.1, 1188.6, 1190.1, 1191.6, 1193.2, 1194.7, 1196.2, 1197.7, 1199.3 and 1200.8 Tons. To compile a production plan by minimizing total production costs, the dynamic programming method is used with the objective function Min Fn(In) = . As a result, the total purchase cost of calcium carbonate raw material is a minimum of Rp. 7,154,355,000. After calculating the cost, it can be seen that after using the dynamic programming method the profits obtained by the company Rp. 114,472,000 compared to before using the dynamic programming method Rp. 111,040,000.
THE IMPACT MODELS OF ENTREPRENEURSHIP EDUCATION PROGRAMS AND STUDENTS’ INDIVIDUAL ATTITUDES ON STUDENTS’ ENTREPRENEURIAL INTENTIONS Albertus Daru Dewantoro; Lucia Ina Trisjanti; Diio Rivaldo
Spektrum Industri Vol 18, No 1: April 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i1.15819

Abstract

Generating unemployment is something that is not desired by every university. The history of the economy in Indonesia proves that entrepreneurship has a positive impact on the resilience and economic growth of the nation, therefore most universities require their students to take entrepreneurship courses. University academic support in terms of entrepreneurship education is expected to be able to foster students entrepreneurial intentions, so that the target of increasing the number of entrepreneurs can be realized. Entrepreneurial intention is also influenced by individual students attitudes factors. This research was conducted by surveying 155 students at two universities in Surabaya, to answer the purpose of this study we use the analysis of independent sample test and multiple regression. This study found evidence that the type of education (vocational and non-vocational), and the background of parents' work (entrepreneurial and non-entrepreneurial professions) did not have a significant difference affecting students entrepreneurial intentions. This study also found evidence that factors of students individual attitudes and entrepreneurship education programs had a positive and significant effect on growing students entrepreneurial intentions
ANALISIS PROGRAM KESELAMATAN DAN KESEHATAN KERJA DI BAGIAN PRODUKSI DENGAN MENGGUNAKAN METODE 5S (Sudi Kasus PT Pionirbeton Industri Plant Yogyakarta) Hendri Yanto
Spektrum Industri Vol 18, No 1: April 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i1.12443

Abstract

PT. Pionir Beton Industri Plant Yogyakarta has not implemented the occupational health and safety program optimally. The number of work accidents occurred on PT. Pionir Beton Industri Plant Yogyakarta from 2015 to 2017 were 10, 8, and 7 events. The working condition indicated that the stuffs or the rest of production scattered on the production floor, the company has not implemented the material arrangement yet, not all workers maintain the cleanliness, undisciplined workers. The analyze of problem was conducted using 5S method, and also measure the frequency rate, severity rate, incidence rate, and frequency severity indicator. The frequency rate results showed 75.483 hours, 60.386 hours, and 52.838 hours from 2015 to 2017. The Severity rate results showed 679.347 days, 603,864 days and 366.123 days from 2015 to 2017. The Incidence Rate results showed 21,7%, 17,4%, and 15,2% from 2015 to 2017. The Frequency Severity Indicator results showed 51.279 times, 36.386 times, and 29.912 times from 2015 to 2017. The work productivity was strongly influenced total work hours of workers and the number of workdays lost. The 5S method analyze results showed that the actual condition did not meet the requirement of 5S method.
INTEGRASI METODE SWOT DAN QFD UNTUK MENINGKATAN DAYA SAING USAHA MELALUI PENGEMBANGAN PRODUK OTAK-OTAK BANDENG GRESIK Narto Narto
Spektrum Industri Vol 18, No 1: April 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i1.13990

Abstract

Gresik milkfish brain is a commodity from strategic ponds that has high economic value. An increase in population and high competition in the industrial era 4.0, the industry must be supported by competitive strategies to obtain a broad market share. To win the competition the industry must innovate products in accordance with consumer demand. The purpose of this research is to identify strengths and weaknesses as well as opportunities and threats, find out the desires and needs of consumers that have not been fulfilled in the preparation of milkfish brains, design effective business strategies through product development. Based on the results of the research using the SWOT method, a competitiveness strategy is obtained that is designing attractive packaging with the characteristics of the city of Gresik by using special materials that are environmentally friendly, product innovation oriented to new product variants, building a system of purchasing raw materials and supporting materials as well as integrated sales distribution, materials raw choice and processing of production processes that adopt technology. Product development that can be done with the QFD approach is to create new variants with priority on original, sweet, spicy flavors, each package uses an ergonomic design and secondary colors. The inner packaging material is coated with an antimicrobial edible coating
ANALISIS TEKNO EKONOMI PEMANFAATAN SAMPAH PASAR SEBAGAI BAHAN PEMBUATAN PUPUK ORGANIK CAIR Dewi Diniaty; Jaka Prindra illahi; Wresni Anggraini; Ekie Gilang Permata; Silvia Silvia
Spektrum Industri Vol 18, No 1: April 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i1.15821

Abstract

The Selasa Panam Market is a traditional market where there are many piles of garbage around the market area. This pile of garbage can cause environmental pollution which causes unpleasant odors. This study aims to manufacture liquid organic fertilizer made from market waste by adding EM4, Yeast, and Whey Kefir, testing the nutrient content of N, P, K in liquid organic fertilizer, analyzing the economic techno of liquid organic fertilizer based on HPP and BEP. This research using a completely randomized design method is used to determine the treatment of making liquid organic fertilizer and variable costs to calculate the cost of production (HPP). Then the BEP method to determine when the break-even point will be reached. Success has been made in the manufacture of liquid organic fertilizers made from market waste giving EM4, Yeast, and Whey Kefir bacteria. N, P, K nutrient content test results obtained sample C has the best results with N values of 0.4129%, P 0.1223%, and K 0.2101%. HPP on organic fertilizer obtained was Rp. 5,222 / liter and BEP obtained as much as 321 liters for a year so that the BEP can be reached within 71 days. With this research can be found knowledge about the use of market waste as an ingredient for making liquid fertilizer and making products that can be used by others.
OPTIMASI KEUNTUNGAN PRODUK KERIPIK SINGKONG MENGGUNAKAN METODE BRANCH AND BOUND DAN ALGORITMA GENETIKA PADA GNP SNACK Sarif Hasan; Yohanes Anton Nugroho
Spektrum Industri Vol 18, No 1: April 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i1.13299

Abstract

GNP Snack company has problems in making raw material inventories which are sometimes not enough for 0.5 tons of cassava chips to fulfill demand. This will affect the production process carried out every day. Production needs per day 1 - 1.5 tons of production of cassava chips. The company benefits of GNP Snack are not optimal because it only produces an average profit per month of Rp. 2,000,000 therefore the right formula is needed to overcome this problem using the Branch and Bound Method and the Genetic Algebra Method. The calculation results from the branch and bound method show an increase in profits in December 2018 of Rp. 2,018,992 to Rp. 2,531,467 or a 25% increase, in January 2019 amounting to Rp. 2,247,488 to Rp. 4.247.620 or an increase of 89%, and in February 2019 Rp. 1,290,661 to Rp. 1,299,020 or experiencing a 1% increase and the results of calculations using the genetic algorithm method show an increase in profits in December 2018 of Rp. 2,018,992 to Rp. 2,555,477 or a 27% increase, in January 2019 Rp. 2,247,488 to Rp. 2,655,551 or an increase of 18%, and in February 2019 Rp. 1,290,661 to Rp. 2,810,316 or 118% increase.
MAKESPAN MINIMIZATION IN BATIK MURNI SMEs WITH PALMER, CAMPBELL DUKDEK SMITH, AND HEURISTIC POUR ALGORITHM Wildanul Isnaini; Emylia Arghawaty; Zahrul Ashari
Spektrum Industri Vol 18, No 1: April 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i1.15869

Abstract

Batik Murni is one of the Small and Medium Enterprises (SMEs) in Madiun Region that produces batik tulis and batik cap. However, the production of Batik Murni has not applied the exact method in production scheduling. This SMEs still uses intuition to make the production schedule. This condition can give disadventages for the SMEs, overstock and stockout will be happened. In this study, the researcher wants to offer a solution for the scheduling problems so Batik Murni can increase theri productivity performance. Researchers offer three production scheduling methods aimed at minimizing the makespan of Batik Tulis. The three methods used are Palmer, Champbell Dukdek Smith (CDS), and Heuristic Pour Algorithm. From this research, It can be concluded that the best production scheduling optimization at Batik Murni SMEs is obtained from the Palmer method. With makespan of 4837 minutes or 11 working days so the makespan can be minimized 54,2%.  In the order of the production process is batik sejuta bunga – batik batik turi tabur - batik seger arum - batik pecel.
PERILAKU BERPINDAH KONSUMEN ROKOK DI JABODETABEK: ROKOK KONVENSIONAL KE ROKOK ELEKTRIK Ronald Sukwadi; Priscilla Priscilla
Spektrum Industri Vol 18, No 1: April 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i1.13208

Abstract

In 2023, the use of e-cigarettes is predicted to be higher and growing compared to conventional cigarettes. Based on the behavior of e-cigarette users, it is interesting to examine whether the customer satisfaction, price, product quality, and user experience related to their switching behavior. Interview, observation and questionnaire were applied to collect the data. Questionnaires were distributed to 200 e-cigarette users in Greater Jakarta. Structural equation model (SEM) with LISREL 8.70 software was used to analyze the data. The results showed that customer satisfaction and product quality have no significant influence to switching behavior, and price and user experience have significant influence to switching behavior.
OPTIMALISASI RUTE DISTRIBUSI MENGGUNAKAN ALGORITMA DJIKSTRA Iga Kusuma Wardani; Kuncoro Sakti Pambudi; Lintang Rainamaya Nursanti; Wahyudi Sutopo
Spektrum Industri Vol 18, No 1: April 2020
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v18i1.10807

Abstract

Optimization of distribution routes is intended to allocate products to each high school in Surakarta as well as to choose the route that has the biggest time savings so that transportation costs can be optimized. The route currently used is quite long, so the time needed for the distribution is long. Determination of distribution routes using the Djikstra algorithm method is carried out on the distribution of LKS in CV ABC. The Djikstra algorithm method allows route optimization by taking into account vehicle capacity and number of demand from each customer. The data used are the distance between the warehouse to each high school and the distance between high schools, the quantity delivery per customer, and the vehicle capacity. The results of this study are that if implementing the shipping allocation by prioritizing the closest distance in advance it will save more travel time than applying the allocation used by this company. Based on the analysis, it was found that the optimal shortest route in the distribution of LKS to SMA was to save fuel needs by 1.21 liters and save transportation costs by Rp. 9075 or 17.89% of the initial transportationcosts.

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