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Results in Journal Spektrum Industri: 160

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Heriyono Lalu
Spektrum Industri, Volume 19, pp 63-72; https://doi.org/10.12928/si.v19i1.17753

Abstract:
E-Learning and distance learning implementation is part of the Indonesian Government's response to face the industrial revolution 4.0 and the disruption of higher education innovations through the Ministry of Research, Technology and Higher Education. -Learning and distance learning implementation in Indonesian higher education must be in line with Tridharma Perguruan Tinggi, and adopt a quality design approach that comes from a good framework. This research offers a design of e-learning business architecture in indonesian higher education that is in line with Tridharma Perguruan Tinggi, Indonesian Higher Education Accreditation, follows the quality framework and approach from ISO 19796 and PDCA cycle, and continuous improvement based on knowledge management. e-Learning business architecture design, carried out using TOGAF ADM approach. The e-learning business architecture design results for indonesian higher education are outlined in 5 parts, which is e-learning business architecture motivation, e-learning business functions and services, e-learning organizations, e-learning business processes, and e-learning business roles and actor.
Muhammad Kareza Abrianto, Devina Puspita Sari, Renanda Nia Rachmadita
Spektrum Industri, Volume 19, pp 29-36; https://doi.org/10.12928/si.v19i1.19648

Abstract:
As a service company, service quality and speed of service are the main focuses of the company. One equipment in loading and unloading is Terminal Truck. However, Terminal Truck currently has less than desirable with the frequent occurrence of breakdown. This will have an impact on the time used to be less productive. This study aims to determine the effectiveness of the Terminal Truck by using Overall Equipment Effectiveness (OEE). The results of this study found that the CTT was still below the standard set by JIPM, namely 85%. Meanwhile losses, the significant that affect the effectiveness of CTT are idling and minor stoppage losses.
Anita Ilmaniati, Isma Masrofah
Spektrum Industri, Volume 19, pp 49-60; https://doi.org/10.12928/si.v19i1.18352

Abstract:
Strengthening regional competitiveness as a derivative of strengthening national competitiveness encourages every region in Indonesia to design a regional innovation system (SIDa), including Cianjur Regency. One of the activity programs at SIDa that have been carried out in 2019 is an innovation competition. Based on the evaluation of the innovation competition activities, it is known that the level of community participation is still very low. This indicates that the level of innovation enthusiasm is still low in the Cianjur community. This study aims to formulate a conceptual model between the factors of attitude towards innovation and knowledge awareness of the innovation enthusiasm of the people of Cianjur Regency. The research was carried out by conducting a literature review based on related previous studies. In this study, operationalization variables and item indicators were also carried out, as well as testing the reliability and validity of the measurement scale using initial data. The results of this study are in the form of a conceptual model that links attitudes towards innovation and awareness of knowledge towards innovation enthusiasm along with the level of reliability and validity of the measurements.
Dian Palupi Restuputri, Moch Choirul Huda, Ahmad Mubin
Spektrum Industri, Volume 19, pp 15-28; https://doi.org/10.12928/si.v19i1.18112

Abstract:
The problem that we often encounter in the workplace is work accidents. It is fatal in work and frequently ignored by workers and company owners, especially small and medium enterprises. This study focuses on reducing the risk of work accidents through a participatory ergonomic approach. This method is a method in which all elements involved in the scope of work are invited to work together to solve existing problems. The result shows that the risk of MSDs is dangerous to the musculoskeletal system as the work posture resulted in a significant effect of tension. The physical work environment is not under existing standards. Lack of lighting can be fatal to workers, while too hot temperatures can affect worker comfort. The results of participatory ergonomics show that 85% of workers want a change in the physical work environment. The number of work accidents in batik centers after using a participatory ergonomic approach decreased and could increase work productivity by 11%.
Dimas Hastama Nugraha, Rezeki Peranginangin Peranginangin, Erlita Pramitaningrum Pramitaningrum
Spektrum Industri, Volume 19, pp 37-48; https://doi.org/10.12928/si.v19i1.17906

Abstract:
Morotai’s sanitation and clean water technology is covering sanitation technology (bio filter, sanitary pond) and clean water (SPC, Reserve Osmose). This technology is ready to be applied in Daruba Pantai, Morotai, North Maluku and all of its technology originated from Java. Research problem’s focus on supply chain. Research objectives eager to see to what extent the supply chain of sanitation and clean water technology, from the technology producers which are mostly located in Java and the application location is in Morotai. The study of Supply Chain in Clean Water and Sanitation Technology Implementation using an applied based research approach. This study refers to scientific research and attempt to solve practical problems. The result of this study, any supply chain for four technologies in Morotai. The results consist of identifying supply chain components, determining network dimension structure that consists of three types dimension, determining type of business chain, and mapping supply chain. For the sanitation technology (bio filter), there are six certified bio filter suppliers and one of them will be selected as the supplier of the construction project in Morotai area. At the sanitary ponds technology, the constituent component/material can be retrieved from local suppliers in Morotai. For Simple Water Management Installation-Quick Sand Filter/SPC, the technology constituent component itself comprises of ground water tank, pump, roof tank, and Quick Sand Filter (made of fibre). This material is brought from the supplier named CV. Lusika in Bandung. Then, the RO technology constituent component is quite many comprising of water inlet valve, pre-filter, RO membrane, post-filter, automatic inspection valves, flow blockers, reservoir, faucet, and exhaust pipe. RO system unit is brought from the supplier called PT. Zeofilt Water Treatment that located in Bandung.
Asri Novia Sahraen
Spektrum Industri, Volume 19, pp 73-85; https://doi.org/10.12928/si.v19i1.17830

Abstract:
Risk is the uncertainty of events that can have a negative impact on organizational goals. Every organization has risks. The purpose of this study is to identify the risks faced by the organization and propose mitigation strategies based on the integration of the enterprise risk management (ERM) model and the balanced scorecard. This research was conducted at a consulting service company using a semi-quantitative method. The results obtained 36 risk events. Risk management is carried out based on the level and amount of risk that has been evaluated and a risk priority map is made. In managing risk, three strategies are applied, namely accept, share (reduce) and reduce according to the ability and resources of the company in dealing with risk.
Nana Rahdiana, Sani Suhardiman, Khoirudin Khoirudin
Spektrum Industri, Volume 19, pp 1-14; https://doi.org/10.12928/si.v19i1.19272

Abstract:
XYZ is a company engaged in the paper industry, which is located in West Java. Since established in 1976, this company has produced photocopy paper in the form of reams. This company has advantages in terms of paper quality so that its products dominate the international market and the domestic market. With a very tight level of market competition, companies must continue to work optimally to continuously improve employee performance and company productivity. The purpose of this study is to plan an incentive-based employee wage system, which is suitable and in accordance with company conditions. Incentive wages are important as one of the main components to increase and maintain motivation, performance and work integrity. This research was conducted in the Finishing Department of the copy manual wrapping work unit. The method used are the Piecework method, the Halsey method, and the Rowan method. The result of this research is a comparison of the amount of wages between the wage system used by the company and the three methods of incentive pay as a company alternative. From the comparison of the three incentive wage design methods, the authors recommend the Halsey method as the best method that is able to provide benefits for both the company and for workers which we call dual mutualism. The Halsey method still guarantees a basic wage and a decent incentive wage for workers as a motivation to work faster and better.
Mahmud Basuki, Rizqa Ula Fahadha
Spektrum Industri, Volume 18, pp 175-182; https://doi.org/10.12928/si.v18i2.14393

Abstract:
Nata de coco is food made from coconut water waste which can be consumed and can help improve the digestive process. The results of fermentation at PT XYZ still contain damaged or moldy nata sheets. The purpose of this study is to identify the causes of nata sheet defects. The identification of production defects in this study uses a fishbone diagram. The results of this study show that the cause of nata de coco sheet defects is the quality of coconut water that is too old (contains oil), too young (does not contain minerals), too long exposure to open air (contaminated with other bacteria). So that the resulting starter seeds are not good enough. Other causes are because the tray used is not clean (still runny), the newspaper used is torn (wide open), shocks occur during fermentation, alkaline pH, fluctuating air temperature, the boiling process has not reached boiling point, and the amount of additional materials (ZA fertilizer and sugar) is not quite right.
Nelfiyanti Nelfiyanti, Casban Casban, Ridwan Ridwan
Spektrum Industri, Volume 18, pp 167-174; https://doi.org/10.12928/si.v18i2.17918

Abstract:
PT.XYZ operates in the field of two-wheeled vehicle manufacturing. A product defect is produced in the design, namely scratch defect, which has an average defect percentage of 2.39%, which exceeds the Company's defect standard of 0.2%. This study aims to determine the factors that cause scratch defects and reduce scratch defects using the QCC method on the frame assembly line section. The research method is done with the stage starting from the problem identification stage to find out the problems that need improvement steps. Data collection techniques are done by conducting direct observations in the field and conducting interviews with related personnel as well as performing literature studies to learn the science of literature that has a direct relationship with the research topic. The problem formulation level is done to find out the main problems that are the source of the occurrence of defective products. Stages of activity collecting data obtained based on direct observation results and company defect data. The data processing stage was done using the QCC method with PDCA approach and using 5W + 1H stage for the repair process so that the defect value is 0.56%, in this case, there is a decrease in the percentage of a defect by 1.84% from the previous 2.39%. As well as giving a good quality influence on the products produced
Santika Sari, Akhmad Nidhomuz Zaman, Mohammad Rachman Waluyo, Nurfajriah Nurfajriah
Spektrum Industri, Volume 18, pp 113-120; https://doi.org/10.12928/si.v18i2.17316

Abstract:
Industrialization development, which is being implemented in some areas, is increasing rapidly. There are over one hundred thousand construction companies in Indonesia. Thus, the risk of accidents in the construction field is also likely to increase. Moreover, Indonesia is one of the countries with the highest construction accidents according to ASEAN's accident rate. This will cost a significant loss. The Indonesian construction industry should conduct a more in-depth investigation into the problem so that improvements would significantly decrease the accident rate. This research aims to obtain the first modification of HFACS models to be implemented in the companies. Thus, it is expected that there is a correction to the dominant factor. HFACS model is an accident investigation method based on the human error factor. This research is generally divided into three steps. There are preliminary, data collecting, then conclusion and recommendation. Based on the explanation above, it is obtained that the development of the HFACS model is by adding the level of an external factor, which obtained 1,2% in the construction industry. Through the recommendation based on the result of this research, be expected that construction companies in Indonesia could make continuous improvements to reduce the accident
Songpob Pasvorarotkool, Sulaksana Mongkon
Spektrum Industri, Volume 18, pp 159-166; https://doi.org/10.12928/si.v18i2.18396

Abstract:
This research focuses to study the potential of energy auditing in university building following ISO 50001 Energy Management standard. The sample area is Faculty of Animal Science and Technology Building, Maejo University. The scope of area is a lecture building (building A) and conference building (building B). For energy indicators analysis is divided into three levels namely; organization level, system level, and equipment level. The results found that the sample building used 100% of electricity or about 166,041.66 kWh/year. The significant energy use (SEU) area was the air conditioning system that consumed the highest energy use about 38.33%, following by the lighting system, other systems, lift system, ventilation system and pump system which their proportion are 30.76%, 28.32%, 1.43%, 0.95%, and 0.21, respectively. The energy utilization index (EUI) before the study is equal to 5.49 kWh/m2∙year higher than after the study assessment that is equal to 3.75 kWh/m2∙year from four recommended measures for example; lighting bulb reducing in the brighter area than standard, changing the fluorescent bulb to LED bulb, changing air conditioning to use a high-efficiency air conditioner, and reducing time ventilation fans in the air-conditioned room. If the sample building will improve following recommended measures, the expected result is a great saving than the current situation. The energy performance index (EPI) of will be decreased by about 31.63%. The electricity will be saved of 32,239.38 kWh/year or equivalent to 125,088.78 Baht/year which the investment cost is about 682,075.00 Baht and get a payback period of 5.45 years.
Winda Nur Cahyo, Nova Ardyanto
Spektrum Industri, Volume 18, pp 145-158; https://doi.org/10.12928/si.v18i2.17515

Abstract:
To maintain the performance to optimalization operating at Coal Fire Power Plant (CFPP) the reliability of power plant equipment needs to be maintained especially on critical equipment. Based on CFPP failure data during 2012 – 2017, one of the critical equipment is the Induce Draft Fan (IDF). The Journal will analyze the reliability, availability and maintainability for the IDF equipment with the approach of Life Cycle Cost Analysis (LCCA). Using the IDF equipment failure data during 2012 - 2017 which is processed using Minitab 17 application with Weibull Analysis method, the results obtained the mean value (µ) for MTTF and shape parameters (β) and scale parameters (η) for calculation MTTR. That data combined with the hours of annual routine maintenance periods for each unit, used to calculate the operating and maintenance (O&M) hours of IDF in a year and then combined with operational cost data so the total O&M costs for the IDF during 15 years period obtained. Consider with assumptions for the calculation, the final results can provide input for management to making appropriate maintenance decisions.Based on analysis data, MTTF and MTTR values for IDF 1A is 10,726.6 hours and 43.84 hours, IDF 1B is 4,891.07 hours and 5.35 hours, IDF 2A is 5961.44 hours and 75.45 hours, IDF 2B is 7,047.26 hours and 163.70 hours, IDF 3A is 5,059.77 hours and 220.86 hours then IDF 3B is 7,218.89 hours and 101.14 hours. The results of LCCA approach for 15 years obtained the lowest total maintenance cost is IDF unit 1 of 527.68 billion.
Desrina Yusi Irawati, David Andrian, Albertus Daru Dewantoro
Spektrum Industri, Volume 18, pp 195-202; https://doi.org/10.12928/si.v18i2.16967

Abstract:
Bonorowo land in Laren Subdistricts, Lamongan Districts, is one of the areas that uses its land for rice, corn and kenaf cultivation. The agricultural sector in Laren does not yet have a detailed economic analysis. Farmers ignore the importance of considering initial capital and some “small” costs in this activities. Therefore, in this study, the calculation of business feasibility was carried out on rice, kenaf, and corn farmer groups in Bonorowo land, West Laren. Business feasibility analysis is conducted through calculation of the value of NPV, IRR, and IP. The calculation system uses a Microsoft Excel spreadsheet formula. The NPV, IRR, and PI values of corn cultivation are Rp. 524,182.40; 144.43%; and 2,9. The NPV, IRR, and PI values for kenaf cultivation are Rp. 1,145,532.39; 266.43%; and 5.15. The NPV, IRR, and PI values for rice cultivation are Rp. -495,085.78; -25.18%; and -0.79. The results of the economic analysis of the cultivation of rice, corn, and kenaf in Bonorowo land, Laren Subdistrict, show that rice cultivation has caused losses and is not feasible to continue.
Bambang Suhardi, Syafiya Maharani, Rahmaniyah Dwi Astuti
Spektrum Industri, Volume 18, pp 103-112; https://doi.org/10.12928/si.v18i2.14957

Abstract:
PT. Trijaya Plastik Utama is a company that manufactures raincoats. Based on the results of interviews with workers in 3 production departments, most experienced complaints in the upper limbs, especially the neck, back, and hands. Most of the work does repetitive activities with long cycles, so the nature of the work is suspected to cause musculoskeletal disorders for the operator. This study aims to identify the presence of musculoskeletal risks due to repetitive work using the Occupational Repetitive Action (OCRA) method. Based on the identification results of each department section, the packing section has the highest OCRA index value with a value of 3.86 for the right hand and 3.01 for the left hand. Improvement efforts to reduce risk due to repetitive work is to apply the concept of Eliminate, Combine, Re-Arrange and Simplify (ECRS) and the proposed design of work facilities. As a result, the OCRA index value dropped to 0.95 for the right hand and 0.85 for the left hand where the conditions were optimal
Akh Sokhibi, Mia Ajeng Alifiana, Vikha Indira Asri
Spektrum Industri, Volume 18, pp 121-132; https://doi.org/10.12928/si.v18i2.17601

Abstract:
Lighting is an important factor in working comfort. A comfortable workspace must meet good lighting requirements by the lighting standards of a workplace. Visual comfort at work is the result of applying ergonomic aspects to workspace lighting. The purpose of this research is to analyze ergonomically lighting in the workspace of the engineering faculty of Muria Suci University. The method used in this research is descriptive quantitative. Where the data collection of light measurement in the workspace is carried out at the hour (09.00-14.00 WIB). Then the data is processed using surfer software version 10 to determine the distribution of lighting. Testing is done by comparing the standardization table of lighting intensity levels based on SNI 03-6575-2001 standards. Risk data the visual comfort of the lighting at work is analyzed in terms of the level of lighting risk. The results of this study indicate that quantitative exposure risk, all work spaces of the Faculty of Engineering, Muria Kudus University does not eligible SNI 03-6575-2001. Meanwhile, based on the risk of qualitative lighting, administrative workspaces that have a low risk of visual comfort and industrial engineering study program workspaces have a high risk of visual comfort
Hery Hamdi Azwir, Adji Fadjriawan Nugraha
Spektrum Industri, Volume 18, pp 133-144; https://doi.org/10.12928/si.v18i2.17801

Abstract:
To meet customer demand, the company was faced with insufficient capacity problems caused by low efficiency and congestion on the assembly line. Recent data shows that there is an imbalance in the work process time between workstations. This study aims to solve these problems to achieve the desired capacity. The research begins by observing the operating time and collecting other data on the assembly line then analyzed and developed as a solution to these problems. The analysis results show that the assembly line has low line efficiency and the impact on the output target is not as expected. From the time observations made on the assembly line, it can be seen that the current line is inefficient and there is a bottleneck at some workstations. Ranked Positional Weight (RPW) was chosen as a line balancing method to solve the problem. RPW generates new work arrangements for each workstation that has relatively the same uptime. The results of the RPW method showed a significant increase in line efficiency, namely 75.03%, the smoothness index increased by 90.79%, and the balance delay was reduced by 90.52%. After the solution is obtained, a new layout is created to be used as a guide for rearranging the assembly line.
V. Reza Bayu Kurniawan, Fransiska Hernina Puspitasari
Spektrum Industri, Volume 18, pp 183-194; https://doi.org/10.12928/si.v18i2.17824

Abstract:
Logistics service providers are the key stakeholder in Indonesian logistics activities that are growing significantly and face many challenges. In this research, a case study on a logistics service provider located in the city of Yogyakarta Indonesia is evaluated. The provider is currently experiencing rapid growth indicated by increasing delivery volume and scopes. However, optimal resource management has not been able to be adequately calculated, such as inefficient courier assignment and overloaded couriers' volume. Thus, this study aims to minimize total distances through optimal zone groups under several restrictions. An optimization approach is selected in this research by initially building a mathematical model using a standard form of linear programming. Then, the mathematical model is solved to generate minimum distances. The result indicated that the total minimum distances had been reached with considerable changes in delivery zone grouping, and the couriers' capacity was optimally utilized without overloaded capacity. These zone groups can be used as a reference for further research by taking into account some restrictions such as packages fluctuations as well as adding objective to minimize couriers' traveling time.
Wildanul Isnaini, Emylia Arghawaty, Zahrul Ashari
Spektrum Industri, Volume 18, pp 95-101; https://doi.org/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.
Vivin Nur Oktavianty, Tedjo Sukmono
Spektrum Industri, Volume 18, pp 15-22; https://doi.org/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.
Dewi Diniaty, Jaka Prindra Illahi, Wresni Anggraini, Ekie Gilang Permata, Silvia Silvia
Spektrum Industri, Volume 18, pp 83-93; https://doi.org/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.
Iga Kusuma Wardani, Kuncoro Sakti Pambudi, Lintang Rainamaya Nursanti, Wahyudi Sutopo
Spektrum Industri, Volume 18, pp 1-13; https://doi.org/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.
Sarif Hasan, Yohanes Anton Nugroho
Spektrum Industri, Volume 18, pp 57-63; https://doi.org/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.
Hendri Yanto
Spektrum Industri, Volume 18, pp 23-30; https://doi.org/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.
Albertus Daru Dewantoro, Lucia Ina Trisjanti, Diio Rivaldo
Spektrum Industri, Volume 18, pp 75-81; https://doi.org/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
Merry Siska, Muhamad Hifni Syahbana
Spektrum Industri, Volume 18, pp 45-55; https://doi.org/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.
Ronald Sukwadi, Priscilla Priscilla
Spektrum Industri, Volume 18, pp 31-42; https://doi.org/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.
Narto Narto
Spektrum Industri, Volume 18, pp 65-73; https://doi.org/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
Mega Octavia, Sunday Noya
Spektrum Industri, Volume 17, pp 191-202; https://doi.org/10.12928/si.v17i2.13560

Abstract:
PT. Rukun Citra Abadi is a manufacturing company that produces cartons in Indonesia.This is a new company that is still under development, especially the quality control system, as seen from the defective products produced. To overcome this problem, there will be applied the Six Sigma method. The data collection and processing phase starts from define, which is an analysis of product quality characteristics or Critical to Quality, then measure at the stage where DPU, DPMO and conversion values are calculated sigma value, then continued to analyze stage the analysis carried out based on the results of the quality characteristics (CTQ) which has been determined at the define stage with the sequence method Defect Concentration Diagram, Fish Bone Diagram and Failure Mode and Effect Analysis (FMEA). The results of the analysis obtained DPMO values in January (9550), February (8886) and March (7025), after the implementation of the DPMO value in April (5086) and sigma values from January to March, 3.84; 3.87 and 3.95 in April (4.06). The cardboard box DPMO value in January 6530, February (6560) and March (6965), after the implementation of the DPMO value in April (6071) and the sigma value from January to March, 3.99; 3.99 and 3.95 in April (4.02). The sigma value for sheet and cardboard box cartons has increased, which means that the implementation has succeeded, in other words has succeeded in reducing defective products in the production process of cardboard.
Rizqa Amelia Zunaidi, Wahyu Andy Prastyabudi, Abduh Sayid Albana, Sinta Dewi, Nisrina Salsabilah
Spektrum Industri, Volume 17, pp 109-117; https://doi.org/10.12928/si.v17i2.14325

Abstract:
In accordance with Hottelling's Law, strategic location is a significant factor to ensure the success of a business, thus two businesses which sell the same product tend to choose a closed location. The real practice of this concept is seen in the competition of two big retailers which often open their shop nearby. However, in such competition, the location factor is merely not sufficient. It is necessary to consider other factors such as price and rebate or discount types given to their customers. This paper, particularly, aims to see the customers' preferences towards given attributes i.e. price, location, and discount types. The data is collected bymeans of a survey with non-probability sampling that is judgmental sampling. The respondents are people reside in Surabaya, Sidoarjo, and nearby whose age between 15-45 years and having various profession. The data is then processed with conjoint analysis by which is used as a basisto reconstruct a demand model considering the customer's preferences. The result shows that the attribute which is most considerable by respondents is the discount types, herein is a bundling product that comprises various products. This attribute has a preference level at 54.53%. The second prioritized attribute is the retailer location with a preference level at 24.28%. This means that a closer retailer is the most preferable by the respondent. Meanwhile, price is the last attribute considered by the respondent in choosing the retailer with a preference level at 21.28%. Thus, a respondent tends to pick a cheaper product after considering its discount type and the distance of retailer.
Hendy Tannady, Yohanes Dwi Pratama
Spektrum Industri, Volume 17, pp 93-97; https://doi.org/10.12928/si.v17i2.13944

Abstract:
The demand for erratic products makes the company must control raw material inventory. This study aims to minimize the total costs associated with supplying raw materials by determining the appropriate inventory control methods for the company. Research using the probabilistic inventory method because there are costs associated with shortages (stockout cost), if there is a shortage of inventory the company will do a back order (back order) to meet existing demand.The analysis shows that the calculation of probabilistic inventory models provides lower costs compared to the company method. The optimum number of orders with the EOQ method is 25,95 kg. The company experienced a stock out of 38,06%. The company resolved the problem by paying a fee of Rp 32.869,70. Inventory planning using the EOQ method can save Rp 42.213,67.
Endar Ernanda, Misra Hartati
Spektrum Industri, Volume 17, pp 133-141; https://doi.org/10.12928/si.v17i2.12831

Abstract:
Cement is an important main ingredient to construct a building. The large demand for cement in Indonesia made cement companies competed each other to attract consumers. PT Semen X is one of the well-known cementproducers in X City. This company sells some variant of cement, one of them is cement X. Nevertheless, sales of cement X is stilll under the forecast set by the company. This study aims to understand the factors that influence cement sales and take a policy to increase sales of cement X in the X City area. Calculations are carried out using a dynamic system method. The simulation was designed for 12 months in 2019. Based on the results of the dynamic system design, it was found that the sales and income of PT. Semen X increases every month. Furthermore, two scenarios are designed to increase sales and revenue of PT. Semen X. According to the simulation results, the first scenario was chosen, namely the addition of online promotion variables affected the value of the promotion of cement products X. This will give a significant influence on the sales and incomeof PT. Sement X.
Ismu Kusumanto, Della Arinda Fitri
Spektrum Industri, Volume 17, pp 157-166; https://doi.org/10.12928/si.v17i2.13234

Abstract:
Minimarket 212 Mart is a sharia-based retail that provides goods for people who are only registered as Halal by MUI. The meeting of the number of minimarkets created a competition for the same market in Tampan District. 212 Mart is in the same battle area as other retailers such as Indomaret. So that more and more retails are destroying each other, killing each other and bleeding bloody termed the Red Ocean. The purpose of this study is to determine the position of the 212 Mart quadrant in retail competition anddesign a strategy that is applied by 212 Mart based on the Blue Ocean Strategy. Questionnaire data collection techniques for 100 respondents who are consumers 212 Mart Tampan District. Based on the research results 212 Mart is in quadrant III SWOT matrix which means it has a great opportunity but there are weaknesses in the company's internal. The 212 Mart strategy canvas shows the low value of competitors' curves, meaning the lack of offerings given to consumers. The results of the four-step framework, there are no eliminated factors, reducing factors that are notimportant in the competition, increasing factors that have a low value from Indomaret namely product variables, price, promotion, place, physical evidence, factors created include fresh corner, member card, giving coupons or sweepstakes, discount corners, non-cash payments, Where to provide hot drinks
Lisye Fitria, Berliana Annisa Dery, Hendro Prassetiyo
Spektrum Industri, Volume 17, pp 179-189; https://doi.org/10.12928/si.v17i2.13921

Abstract:
Lean healthcare is one way to identify and minimize waste in every service process at the outpatient installation of Al Islam Bandung Hospital (RSAI). Patients must wait more than 2 hours to get service. The tools used for the implementation of lean healthcare are current state mapping, value assessment, and Failure Modes and Effects Analysis (FMEA). The results showed that the wastage waiting category was a critical waste. Proposed improvements are expected to reduce waiting time for general patient services 65.438%, BPJS Health patients 70.632%, and contracting patients 70.921%.
Akh Sokhibi, Rangga Primadasa
Spektrum Industri, Volume 17, pp 99-107; https://doi.org/10.12928/si.v17i2.13705

Abstract:
A class room was a room where the face to face learning process took place in the form of lectures, discussions, tutorials, seminars, etc. The class room must be equipped with facilities and infrastructure including table and chair for lecturer and students, LCD projector and white board. The layout of equipment in the class room sometimes dis not consider the ergonomics aspects, so that it might cause musculoskeletal disorder to the students. Descriptive quantitative methods were used in this study. A randomsampling using the Nordic Body Map (NBM) questionnaire was used for data collection. Then, the data were analyzed by the contingency coefficient test which was interpreted in the form of a risk relationship picture of the musculoskeletal disorder in the class room of the Faculty of Economics and Business, Muria Kudus University. The results of thisreseartch were the LCD projector layout did not consider ergonomic aspects. The results of the Nordic Body Map Questionnaire showed that there were 14% high risk, 14% moderate risk and 72% small risk. There was a 14% relation between the location of the LCD Projector in the class room of the Faculty of Economics and Business, University of Muria Kudus, on the user's musculoskeletal disorder.
Misnadesi Misnadesi, Misra Hartati
Spektrum Industri, Volume 17, pp 119-132; https://doi.org/10.12928/si.v17i2.12859

Abstract:
UKM Kalamai Uni War is a SME produced food products kalamai. Problem faced in this SME is the delay of raw materials from supplier Therefore, this SME couldn’t fulfill demand from consumers. This SME also experienced delays for shipping products to consumers. Another problem is products returned from consumers because the products have expired. UKM Kalamai will suffer losses if this occurs continuously. This study aims to find out the indicators affected toward supply chain performance.of UKM Kalamai Uni War. SCOR and Fuzzy AHP are used to solve this problems. Based on the result, the performance achieved by Kalamai Uni War is 68, 68. This belongs to average or middle performance category. UKM Kalamai Uni War needs an improvement for better supply chain performance. The result of this study were obtained 22 key performance indicators (KPI) indicators and 14 proposed strategiesbased on mapping strategy.
Arifia Fitriani, Alizar Hasan, Ahmad Syafruddin Indrapriyatna
Spektrum Industri, Volume 17, pp 167-178; https://doi.org/10.12928/si.v17i2.13961

Abstract:
Ratio analysis is one of the most competent tools to predictthe bankruptcy of a company. In this paper the bankruptcyprediction of listed cement company in Indonesian StockExchanges has been evaluated using Altman Z-score. Thisstudy aims to determine the level of the bankruptcy of thelisted cement companies in the Indonesian Stock Exchangeduring 2013 to 2017. There are four listed cementcompanies, namely PT Semen A, PT Semen B, PT Semen Cand PT Semen D. Based on the results of the research, itshows that PT Semen A, PT Semen B and PT Semen C are inthe safe zone with the highest Z value which is 15,822 andthe lowest Z value which is 3,542. PT Semen D is in thebankrupt zone because it has a Z value below 1.8. For thatreason, all companies need to improve the performanceimmediately to avoid the bankruptcy happening. There aremany ways to avoid the bankruptcy such as improving thesales revenue, improving operational cost and wastereduction in operation.
Akhmad Sutoni, Iman Apipudin
Spektrum Industri, Volume 17, pp 143-155; https://doi.org/10.12928/si.v17i2.13139

Abstract:
Product delivery must be in accordance with customerdemand in a timely and efficient manner. So that thedistribution process does not result in waste of time,distance, and energy. CV. XY is engaged in trading theneeds of agricultural materials having problems in thedistribution process. The sender's route itself changes overtime depending on the driver's wishes. So there will be manydifferent routes with one goal each. The goal is to produce alonger shipping path, without first looking at vehiclecapacity and the distance that must be traveled. This resultsin expensive transportation costs. From data processingdistribution using the Matrix Saving method obtained 4 newroutes, namely Route 1 (DC - CUS 3 - CUS 10 - CUS 8 -CUS 6- DC), Route 2 (DC - CUS 4 - CUS 2 - CUS 7 - DC) ,Route 3 (DC - CUS 5 - CUS - 9 - CUS 11 - DC), Route 4(DC - CUS 1 - CUS 12 - DC). Distance saving and costefficiency were obtained from 8 routes to 4 routes and totaldistance saving of 39.1 km. Saving in transportation costs ofRp. 12,825,120 or 50% per month.
Spektrum Industri, Volume 17, pp 31-40; https://doi.org/10.12928/si.v17i1.9360

Abstract:
Pengendalian kualitas merupakan kunci utama dalam mempertahankan loyalitas konsumen. Bagi perusahaan dengan melakukan pengendalian kualitas diharapkan dapat meraih tujuan perusahaan terkait tingkat pendapatan perusahaan. Sesuai dengan laju pertumbuhan perekonomian di Indonesia dan pembangunan industri yang meningkat setiap tahun. Maka kebutuhan komponen – komponen bangunan juga meningkat, Produk pelat dinding dan atap yang digunakan dalam berbagai keperluan kontruksi bangunan modern, seperti pada gedung, pabrik modern, building partition, clean room, cold room dan berbagai aplikasi lainnya pada bangunan saat ini. Produk yang dihasilkan oleh PT. BI adalah Panel Sandwich EPS (Expanded Polystyrene), di dalam proses produksinya masih terjadi cacat yang tinggi, sehingga perlu melakukan upaya perbaikan proses produksi. Hasil penelitian sebelumnya diperoleh nilai DPMO sebesar 6500 dan tingkat sigma sebesar 3,98. Hal ini belum mencapai target yang diharapkan yaitu 6 sigma. Pendekatan yang digunakan untuk menyelesaikan permasalahan ini adalah metode Six Sigma berdasarkan tahapan DMAIC (Define, Measure, Analyze, Improve dan Control).Identifikasi cacat produksi terdiri dari tahap define meliputi pelat bending proses, pengeleman, pengepresan roll press dan cutting. Analisis dengan menggunakan diagram fishbone, FMEA (Failure Mode and Effect Analysis) menunjukkan bahwa perlu adanya tindakan perbaikan dan diharapkan dapat meningkatkan performasi perusahaan. Usulan perbaikan kualitas dilakukan dengan merancang alat bantu dengan memasang plastik roll (pelapis laminating) dan penggantian roll press yang rusak. Hasil evaluasi terhadap implementasi usulan perbaikan menunjukkan nilai DPMO sebesar 3227 dan tingkat sigma menjadi 4,22.
Achmad Zaki Yamani, Aswan Munang
Spektrum Industri, Volume 17, pp 87-91; https://doi.org/10.12928/si.v17i1.12727

Abstract:
Gula kelapa sebagai produk unggulan Kabupaten Banyumas, bagaimana hal tersebut memberikan kontribusi yang tinggi terhadap pengembangan ekonomi lokal. Hal ini bisa dilihat dari riwayat produksi gula kelapa trend nya selalu meningkat, tahun 2013 produksi gula kelapa 206,026 ton/hari, tahun 2014 meningkat menjadi 240 ton/hari dan pada tahun 2015 produksinya mencapai 250 ton/hari (Disperindagkop Banyumas, 2016). Penelitian ini bertujuan menemukan area of improvement untuk perancangan alat bantu panjat pohon yang sesuai dengan harapan penderas nira di Kecamatan Cilongok Banyumas. Dalam menjalankan pekerjaanya, para penderas belum banyak memiliki peralatan keselamatan, dalam sehari, para penderas harus memanjat 40 pohon dari pagi hari hingga sore. Ketinggian rata-rata setiap pohon kelapa yang dipanjat sekitar 20 hingga 30 meter. Sehingga dalam penelitian ini akan mengusulkan untuk perancangan alat bantu panjat kelapa bagi penderas nira dengan pendekatan quality function deployment (QFD). Pada proses pengambilan data, peneliti mengidentifikasi keinginan konsumen, kuesioner yang sudah ditentukan dan berisi atribut-atribut sesuai dengan rencana mutu yang sudah ditentukan dalam kerangka pikir disebarkan kepada subyek. Untuk mengetahui data anthropometri user dilakukan pengukuran tinggi badan, ukuran dimensi tubuh, umur, berat badan dan lama bekerja. Sehingga didapatkan acuan untuk mendesain alat bantu memanjat pohon kelapa yang sesuai dengan harapan penderas nira.
Silvia Uslianti, Ivan Sujana, , Tri Wahyudi, Riadi Budiman
Spektrum Industri, Volume 17, pp 51-60; https://doi.org/10.12928/si.v17i1.9673

Abstract:
Berdasarkan Peraturan Daerah Kota Pontianak No 2 Tahun 2013 disebutkan bahwa Intalasi Pengolahan Air Limbah (IPAL) termasuk dalam rencana tata ruang kota Pontianak jangka panjang. Hal ini mengindikasi baik industri besar maupun kecil wajib memiliki IPAL yang sesuai dengan baku mutu yang telah ditetapkan. Namun, berdasarkan data Badan Lingkungan Hidup (BLH) 2017, tingkat pengelolaan IPAL IKM masih dibawah 50% dari total IKM yang ada. Hal ini dikarenakan biaya dalam pengadaan IPAL yang tinggi. Penelitian ini bertujuan untuk merancang bangun IPAL yang bersifat portable dan dapat dijangkau oleh industri kecil dengan menggunakan metode eksperimen taguchi. Langkah-langkah penelitiannya dimulai dengan rancang body IPAL, kemudian eksperimen taguchi untuk menentukan media filter (Zeolit:Arang Aktif), Ketebalan Dacron, ketebalan ijuk dan jumlah plat (Kuat arus 10 A). Eksperimen taguchi dilakukan menggunakan orthogonal array L9(34). Berdasarkan eksperimen taguchi yang dilakukan menggunakan karakteristik kualitas yang dituju yakni smaller the better diperoleh hasil kombinasi perbandingan zeolit dan arang aktif sebesar 70:30 dengan jumlah plat sebanyak 4 plat. Hal ini membuktikan bahwa kombinasi optimal faktor-faktor tersebut dapat meningkatkan optimalisasi dari kerja IPAL portable.
Spektrum Industri, Volume 17, pp 69-78; https://doi.org/10.12928/si.v17i1.10192

Abstract:
Bisnis restoran telah berkembang dengan pesat seiring berjalannya waktu. Untuk dapat bersaing dengan restoran lainnya, manajemen restoran harus meningkatkan kualitas layanan layanan agar pelanggan puas dan loyal. Penelitian ini bertujuan untuk mengukur kepuasan pelanggan terhadap kualitas layanan restoran Solaria dengan menggunakan integrasi model Importance-Satisfaction Model (IS) dan Decision Making Trial and Evaluation Laboratory (DEMATEL). Model IS digunakan untuk menggolongkan atribut kualitas layanan yang harus diprioritaskan untuk dilakukan perbaikan, sedangkan DEMATEL digunakan untuk mengetahui hubungan antar atribut yang harus diperbaiki. Dalam diagram IS terdapat 3 atribut dalam kuadran pertama, 4 atribut dalam kuadran kedua, 8 atribut dalam kuadran ketiga, dan 3 atribut dalam kuadran keempat. Atribut layanan tersebut kemudian dianalisis lebih lanjut pada model DEMATEL. Dari hasil model IS-DEMATEL diperoleh urutan peringkat prioritas atribut yang perlu dilakukan perbaikan oleh pihak restoran. Prioritas utama perbaikan adalah ruang makan yang bersih, sedangkan prioritas terakhir adalah menu makanan yang menarik.
Yohanes Anton Nugroho
Spektrum Industri, Volume 17, pp 79-86; https://doi.org/10.12928/si.v17i1.10882

Abstract:
Bantul regency had experienced of the disasters caused by the earthquake occurred in Bantul in 2006, where 4121 residents of Bantul region was died, thousands buildings was collapsed and many damage many places. This paper develop a model of earthquake demage and analyzes distributing humanitarian aid from BPBD Bantul to each warehouse distributor in each districts that classified as Vehicle Routing Problem With Time Window (VRPTW). This solution model is developed using Linear Programming and The Nearest Neighbors Algorithm s Algorithm. Goal of those methods are expected to get distribution solution more fast and efficient. Based on modeling result using scenario of refugee number 80% from population in very vulnerable area, 60% in vulnerable area, and 40% in less vulnerable area obtained mathematical model of allocation distribution done by optimization with Linear Programming, which obtained distribution allocation solution using 16 medium trucks and 4 heavy trucks only need 3 days.
Spektrum Industri, Volume 17, pp 41-50; https://doi.org/10.12928/si.v17i1.9641

Abstract:
PT. Japfa Comfeed Indonesia, Tbk Unit Lampung merupakan salah satu perusahaan yang bergerak dalam bidang pakan ternak dengan dua jenis produk yaitu seperti pellet dan crumble. Kondisi nyata yang sering terjadi pada perusahaan ini adalah terdapat produk akhir yang bermasalah pada pakan ternak yang tidak sesuai dengan standar kualitas yang telah ditentukan. Tujuan penelitian ini adalah menganalisa kegagalan yang menyebabkan cacat produk dengan menggunakan metode Failure Mode and Effect Analysis (FMEA), mendapatkan resiko kegagalan proses produksi terbesar dalam nilai RPN (Risk Priority Number), dan memberikan usulan perbaikan untuk produksi selanjutnya. Metode yang digunakan dalam penelitian ini menggunakan alat bantu statistik berupa check sheet, peta kendali p dan analisis Cause Failure Mode Effect (CMFE). Salah satu alat yang digunakan untuk membantu pengendalian kualitas adalah menggunakan metode FMEA. Penggunaan FMEA mampu mengidentifikasi resiko kegagalan yang terjadi selama proses produksi pada pembuatan pakan ayam. Hasil analisis peta kendali p menunjukkan bahwa pakan ayam berada dalam batas kendali karena data yang diperoleh tidak ada yang keluar dari batas kontrol, tetapi harus lebih ditingkatkan lagi menuju produk cacat nol. Dari analisis sebab akibat dapat diketahui faktor penyebab kerusakan berasal dari faktor manusia, mesin, material dan lingkungan kerja. Setelah itu dengan FMEA untuk nilai RPN tertinggi adalah saringan hanya ada satu lapis dengan nilai 100 RPN sehingga pellet bisa lolos ketahap akhir, ini disebabkan proses pakan ayam bagian breader tidak terlalu banyak. Untuk mengatasi masalah tersebut maka usulan perbaikannya adalah dengan ditambahkan saringan pada mesin crumble kemudian melakukan perawatan dan pemeriksaan secara rutin.
Spektrum Industri, Volume 17, pp 23-30; https://doi.org/10.12928/si.v17i1.9354

Abstract:
Determination of inventory of raw materials and components is needed to support the smoothness of the production process. Inventory management is done, in order to determine optimum inventory level, order lot size and reorder time that can minimize total inventory cost. This research applies some method in dynamic deterministic inventory model by comparing those method based on the lowest inventory total cost. This model solved basic inventory management problems, which are; the amount of goods to be ordered for each time the order made , when the order need to be made (r) and safety stock level. Based on this research, it is known that company may decrease its inventory cost by implementing suggested inventory method
Edi Hartono
Spektrum Industri, Volume 17, pp 1-10; https://doi.org/10.12928/si.v17i1.8369

Abstract:
PPSDM Migas is a company engaged in oil and gas. One factor that must be considered by the company is the distribution of workload to employees so that the effectiveness and efficiency of employees can be reach. The fact in the field, PPSDM Migas has just transferred its employees to PPSDM Jakarta, so there is a discrepancy between workload and number o f employees. To overcome the problem of measuring workloads in PPSDM Migas, this study uses a task per task approach. This method will provide information about the allocation of employee human resources to complete the existing workload optimally. Based on the results of the workload measurement on PPSDM Migas using the task per task approach it can be concluded that from the two positions as a pilot project there was one position which resulted in a mismatch between the workload and the number of office holders, namely 4 Tank employees and Distribution but from the calculation results it takes 7 employees. The position of Executor of Distillation Operations has the number of employees as many as 2 employees and from the results of the calculation required 2 employees, this shows the suitability between the number of employees and the workload on the position. Based on the results of calculations from both positions, the position of Implementing Distillation Operations is included in the category of sufficient office efficiency. Whereas in the position of Implementing Tank and Distribution Installation get the medium category.
Spektrum Industri, Volume 17, pp 61-68; https://doi.org/10.12928/si.v17i1.10131

Abstract:
Six sigma merupakan konsep statistik yang mengukur suatu proses yang berkaitan dengan cacat pada level enam (six) sigma hanya ada 3,4 cacat dari sejuta peluang. Six Sigma pun merupakan falsafah manajemen yang berfokus untuk menghapus cacat dengan cara menekankan pemahaman, pengukuran, dan perbaikan proses (Tannady, 2015).Dari data dan hasil pengamatan dengan pendekatan six sigma, CTQ kecacatan pada botol berupa botol kotor, retak, gompel, pecah dan afkir. Kecacatan terjadi pada proses pencucian, persentase kecacatan sebesar 0,41% sementara persentase target kecacatan perusahaan 0,24%. Nilai DPMO sebesar 816 artinya dari satu juta kesempatan terdapat 816 botol kemungkinan terjadi cacat, nilai sigma sebesar 4,65 artinya kemampuan yang dimiliki perusahaan kurang dari 6 sigma yaitu tingkat cacatnya 3,4 dari satu juta kesempatan.Dari hasil penelitian disimpulkan bahwa penyebab utama kecacatan yang terjadi pada proses pencucian botol adalah Pengecekan barang yang kurang teliti, Kurangnya pelatihan, Karyawan kurang berhati-hati dalam bekerja, Posisi kerja berdiri, Kurangnya pengawasan dari perusahaan, Belum adanya jadwal pengecekan alat dan mesin, Belum ada SOP, Suasana kerja yang panas dan bising serta Kurangnya perhatian karyawan terhadap area pabrik.Pada penelitian ini, pendekatan six sigma yang digunakan baru sebatas usulan rencana perbaikan belum sampai tahap implementasi.
Spektrum Industri, Volume 17, pp 11-22; https://doi.org/10.12928/si.v17i1.9216

Abstract:
PG xyz sebagai salah satu industri gula yang memiliki potensi pencemaran limbah perlu melakukan perbaikan baik dalam proses produksi maupun pada pengelolaan lingkungannya. Dengan berbagai kondisi limbah yang ada seperti pada air limbah industri. Oleh karena itu di butuhkan aplikasi sistematis dalam meminimasi kemungkinan terjadinya resiko terhadap lingkungan. sehingga dilakukan identifikasi, penilaian dan analisis resiko lingkungan berdasarkan konsep manajemen resiko lingkungan dengan menggunakan metode kualitatif, metode semi kuantitatif dan signifikansi aspek. dilanjutkan dengan perhitungan EPI untuk mendukung pelaksanaan green productivity. tujuan dari penelitian ini adalah (1) Mengidentifikasi dan analisis resiko lingkungan pada air limbah industri pengolahan gula berdasarkan konsep manajemen resiko lingkungan. (2) Melakukan evaluasi faktor-faktor yang berpengaruh terhadap produktivitas kinerja lingkungan untuk mendukung pelaksanaan green productivity. hasil dari penelitian ini adalah intalasi pengolahan air limbah memiliki resiko rendah dengan total nilai resiko 77 artinya pengelolaan dilakukan dengan prosedur rutin. Sedangkan hasil penilaian resiko lingkungan kegiatan produksi yang paling banyak menimbulkan dampak lingkungan adalah proses minyak pelumasan turbin pada stasiun ketel dengan skor 1701, pada stasiun pemurnian proses blotong dengan skor 729. Faktor faktor yang mempengaruhi produktivitas kinerja lingkungan yaitu kinerja dari stasiun ketel dan minyak dari turbin uap yang terbawa ke limbah cair. hasil pengukuran indeks EPI memiliki nilai positif 35,24% hal ini menunjukkan bahwa kinerja lingkungan pabrik gula yang diteliti sudah cukup baik.
, Dene Herwanto
Spektrum Industri, Volume 16, pp 129-134; https://doi.org/10.12928/si.v16i2.11532

Abstract:
Peningkatan mobilitas penduduk dunia menjadikan penggunaan pesawat terbang sebagai alternatif transportasi yang sering digunakan masyarakat. Penggunaan pesawat terbang tidak lepas kaitannya dengan keselamatan dan keamanan penerbangan. Negara yang memiliki standar tingkat keselamatan tinggi, sangat peka dan kritis terhadap masalah kecelakaan. Kecelakaan pesawat mendorong masyarakat untuk lebih memerhatikan keamanan dan keselamatan maskapai penerbangan. Penelitian ini bertujuan untuk mengetahui pengaruh umur pesawat dari suatu maskapai penerbangan terhadap jumlah kecelakaan. Maskapai yang diteliti berjumlah 202 maskapai penerbangan, dengan data diambil dari airlinesrating.com. Masing-masing maskapai penerbangan berasal dari negara yang berbeda-beda. Metode analisis Time Series–Causality Granger digunakan untuk mengetahui apakah umur pesawat memengaruhi jumlah kecelakaan. Uji tabulasi silang juga dilakukan untuk mengetahui karakter masing-masing kategori maskapai penerbangan. Hasil penelitian menunjukkan angka korelasi antara variabel umur pesawat dengan variabel tingkat kecelakaan pesawat adalah sebesar 0,009. Hal ini mengindikasikan tidak terjadi autokorelasi pada model regresi. Signifikansi model sebesar 0,017 menunjukkan bahwa H0 ditolak dan dapat disimpulkan terdapat hubungan yang signifikan antara umur pesawat dengan tingkat kecelakaan. Hasil analisis tabulasi silang mengindikasikan dari tingkat keselamatan, tipe maskapai kategori regional memiliki tingkat keselamatan yang sama dengan maskapai kategori full-service dan kategori low-cost carrier memiliki nilai yang paling rendah dari ketiga kategori maskapai.
Ananda Setiawan, Andika Puspita Sari
Spektrum Industri, Volume 16, pp 219-225; https://doi.org/10.12928/si.v16i2.11542

Abstract:
A good investment decision analysis has to go through to find out the work done will benefit or not. To avoid the losses that investors received, then investors should know the proposed investment with long-term risks will be accepted. The purpose of this research is to analyze the feasibility of investment of fixed assets in the form of replacement of fixed assets fixed assets the old with new in the MSMes Serabi in Surakarta, Central Java by using techniques of Capital Budgeting. This research method is the method of the description with quantitative approach. Data analysis using the latest financial reports to count ARR, PP, NPV, and PI. Data analysis of the results ARR 126.6 % > 20% the investment received, PP 5.13 month < 5 years then the investment received, NPV 41,682,000 > 0 then received investments, PI 11.69 > 1 then received investments. From research done then capital budgeting can be used as a decision-making tool investment fixed assets on the MSMes Serabi Surakarta to anticipate long-term losses.
Ahmad Yakub Katibi, Widyastuti Widyastuti
Spektrum Industri, Volume 16, pp 135-142; https://doi.org/10.12928/si.v16i2.11533

Abstract:
Waduk Sempor adalah objek wisata yang juga dimanfaatkan sebagai sumber mata pencaharian bagi sebagian warga sekitarnya. Saat ini terjadi penurunan jumlah pengunjung yang disebabkan rusaknya beberapa fasilitas penunjang dan persaingan dengan objek wisata lain. Dalam upaya peningkatan daya saing diperlukan pengembangan objek wisata. Berdasarkan hal tersebut maka dalam penelitian ini dilakukan penentuan kriteria desain pengembangan Waduk Sempor. Penentuan kriteria desain dilakukan dengan pendekatan metode Partisipatori Ergonomi, penentukan korelasi dan prioritas kriteria dianilisis menggunakan Partial Least Square (PLS). Hasil strukturisasi kriteria desain pengembangan Waduk Sempor berdasarkan tingkat signifikansi pengaruh dari nilai tertinggi hingga terendah terdiri dari: daya tarik, akomodasi, fasilitas dan pelayanan wisata, kebersihan, aksesibilitas, keamanan dan keselamatan keamanan, infrastruktur lain.
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