Indonesia is the third largest internet user in Asia and the online service industry or E-Commerce in Indonesia is growing every year. As the volume of shipping is increasing, large logistical activities are also needed. However, with high logistics costs there is a difference in cost between the target and the actual state of the company due to the optimal delivery planning. Therefore, it is required planning outbound logistics activities that regulate the movement of goods from the warehouse to the customer. This research develops a mathematical model to reduce logistics outbound costs using Mixed Integer Linear Programming (MILP) using LINGO 18.0 software. Outbound logistics costs include shipping and storage costs. Research during these 8 periods has shown that logistical outbound costs have decreased from IDR 80,335.28.55 to IDR 49,487,340.93 with the difference in the total logistical outbound costs by IDR 30,847,877.62. The successful reduction in total outbound logistics costs also resulted in an increase in utility vehicle usage from 58% to 88% and a decrease in the number of vehicle usage from 233 vehicles to 158 vehicles.
印度尼西亚是亚洲第三大互联网用户，印度尼西亚的在线服务行业或电子商务每年都在增长。随着运输量的增加，也需要大量的物流活动。然而，在物流成本较高的情况下，由于最优配送计划，企业的目标和实际状态之间存在成本差异。因此，需要规划出站物流活动，以规范货物从仓库到客户的移动。本研究利用LINGO 18.0软体，运用混合整数线性规划(Mixed Integer Linear Programming, MILP)建立降低物流出库成本的数学模型。出站物流成本包括运输和储存成本。这8个时期的研究表明，物流出库成本从80,335.28.55印尼盾下降到49,487,340.93印尼盾，总物流出库成本的差额为30,847,877.62印尼盾。在成功降低总出站物流成本后，多用途车辆的使用率也从58%增加到88%，车辆的数量也从233辆减少到158辆。
{"title":"Designing an Optimization Model to Reduce Logistics Outbound Costs in the E-Commerce Industry in Indonesia Using the Mixed Integer Linear Programming (MILP) Method","authors":"S. Putri, I. M. Hakim","doi":"10.1145/3429789.3429850","DOIUrl":"https://doi.org/10.1145/3429789.3429850","url":null,"abstract":"Indonesia is the third largest internet user in Asia and the online service industry or E-Commerce in Indonesia is growing every year. As the volume of shipping is increasing, large logistical activities are also needed. However, with high logistics costs there is a difference in cost between the target and the actual state of the company due to the optimal delivery planning. Therefore, it is required planning outbound logistics activities that regulate the movement of goods from the warehouse to the customer. This research develops a mathematical model to reduce logistics outbound costs using Mixed Integer Linear Programming (MILP) using LINGO 18.0 software. Outbound logistics costs include shipping and storage costs. Research during these 8 periods has shown that logistical outbound costs have decreased from IDR 80,335.28.55 to IDR 49,487,340.93 with the difference in the total logistical outbound costs by IDR 30,847,877.62. The successful reduction in total outbound logistics costs also resulted in an increase in utility vehicle usage from 58% to 88% and a decrease in the number of vehicle usage from 233 vehicles to 158 vehicles.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120949080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of this study was to analyze the effects of project foundation, support, personnel, process and process flexibility on project success in geothermal power plant construction projects in Indonesia. There is an urgent need to understand their effects to increase the current low project success rate. The research method was quantitative and explanatory type. A questionnaire survey and interviews were used to collect the data. The "Factor" school of thought premise, the resource-based theory, and the concept of grouping the project critical success factors were applied for developing the research model. The unit analysis was the completed power plant project. PLS-SEM was used for the data analysis and the hypothesis tests. The study found that project foundation, support and process increased project success, while personnel did not increase project success. Personnel may increase project success through competitive advantages of the project. Process flexibility strengthened the effect of process on project success. The results of the study support previous studies except for personnel. There are limited studies on understanding the effects of critical success factors groups on project success. This study offers five groups of critical success factors to the practitioners of construction project management, especially the geothermal power plant construction projects, to be fulfilled to increase their project success. The developed research model is strong and has predictive relevance. The result of this study cannot be applied other than for geothermal power plant construction projects in Indonesia. A larger number of power plant projects and respondents will increase the strength of the model.
{"title":"Effects of Project Foundation, Support, Personnel, and Process on Project Success with Process Flexibility as Moderating Variable","authors":"Win Sukardi, U. Salim, A. Rofiq, A. Hussein","doi":"10.1145/3429789.3429816","DOIUrl":"https://doi.org/10.1145/3429789.3429816","url":null,"abstract":"The aim of this study was to analyze the effects of project foundation, support, personnel, process and process flexibility on project success in geothermal power plant construction projects in Indonesia. There is an urgent need to understand their effects to increase the current low project success rate. The research method was quantitative and explanatory type. A questionnaire survey and interviews were used to collect the data. The \"Factor\" school of thought premise, the resource-based theory, and the concept of grouping the project critical success factors were applied for developing the research model. The unit analysis was the completed power plant project. PLS-SEM was used for the data analysis and the hypothesis tests. The study found that project foundation, support and process increased project success, while personnel did not increase project success. Personnel may increase project success through competitive advantages of the project. Process flexibility strengthened the effect of process on project success. The results of the study support previous studies except for personnel. There are limited studies on understanding the effects of critical success factors groups on project success. This study offers five groups of critical success factors to the practitioners of construction project management, especially the geothermal power plant construction projects, to be fulfilled to increase their project success. The developed research model is strong and has predictive relevance. The result of this study cannot be applied other than for geothermal power plant construction projects in Indonesia. A larger number of power plant projects and respondents will increase the strength of the model.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132905066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
With the development of the video game industry on mobile devices, it provides benefits for players because mobile devices have high accessibility for portability. One of the functions of playing games is entertainment where one example of playing a game can reduce stress due to cognitive fatigue after work, but there are also several types / genres of games that can increase stress on the players one example is in a violent game. One type of mobile games that are popular today are games with the battle royale genre and this type of game is also violent, so it is suitable to be used in this study to see what events are causing stress on players. This study aims to evaluate the level of stress when playing video games using an ergonomic approach to find out the events in the game that cause increased stress. The method used in this study is frequency analysis of the average beta wave power, asymmetry beta wave, and alpha / beta ratio as well as the theta / beta ratio, using data obtained from respondents' electroencephalogram measurements while playing a match of Playerunknown Battlegrounds Mobile (PUBGM) game. Based on research that has been done there are several conditions that have an influence and do not have an influence on stress levels both in players who have playing experience and beginners who do not have experience playing PUBG Mobile.
{"title":"Stress Emotion Evaluation in Battle Royale Game by Using Electroencephalogram","authors":"Muhammad Fikri Haekal, B. N. Moch, E. Muslim","doi":"10.1145/3429789.3429795","DOIUrl":"https://doi.org/10.1145/3429789.3429795","url":null,"abstract":"With the development of the video game industry on mobile devices, it provides benefits for players because mobile devices have high accessibility for portability. One of the functions of playing games is entertainment where one example of playing a game can reduce stress due to cognitive fatigue after work, but there are also several types / genres of games that can increase stress on the players one example is in a violent game. One type of mobile games that are popular today are games with the battle royale genre and this type of game is also violent, so it is suitable to be used in this study to see what events are causing stress on players. This study aims to evaluate the level of stress when playing video games using an ergonomic approach to find out the events in the game that cause increased stress. The method used in this study is frequency analysis of the average beta wave power, asymmetry beta wave, and alpha / beta ratio as well as the theta / beta ratio, using data obtained from respondents' electroencephalogram measurements while playing a match of Playerunknown Battlegrounds Mobile (PUBGM) game. Based on research that has been done there are several conditions that have an influence and do not have an influence on stress levels both in players who have playing experience and beginners who do not have experience playing PUBG Mobile.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126560966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This radiator cover mold has been made and has gone through the first pre-production trial stage (T0). However, the product experienced a short shot defect in the 1st cavity. After testing using Moldflow, there is a difference in injection time that is quite long between the 1st cavity and 2nd cavity. There is a need for a new design on the feeding system that can speed up injection time in 1st cavity, so differences in injection time can be minimized. The analysis is done by making variations of the size of the feeding system, which is: runner diameter, width, and thickness of the gate using Taguchi and ANOVA method. The analysis shows that the optimal design of the diameter runner is 8 mm while the size of the wide gate is 10 mm and the thick gate is 0.8 mm. The validation process is repeated using Moldflow with the result of a concise injection time difference is 0.001 s. The new design of feed system able to eliminate the difference in filling time in this product.
{"title":"Analysis and Simulation of Short Shot Defects in Plastic Injection Molding at Multi Cavities","authors":"E. A. Wibowo, A. Syahriar, Agung Kaswadi","doi":"10.1145/3429789.3429837","DOIUrl":"https://doi.org/10.1145/3429789.3429837","url":null,"abstract":"This radiator cover mold has been made and has gone through the first pre-production trial stage (T0). However, the product experienced a short shot defect in the 1st cavity. After testing using Moldflow, there is a difference in injection time that is quite long between the 1st cavity and 2nd cavity. There is a need for a new design on the feeding system that can speed up injection time in 1st cavity, so differences in injection time can be minimized. The analysis is done by making variations of the size of the feeding system, which is: runner diameter, width, and thickness of the gate using Taguchi and ANOVA method. The analysis shows that the optimal design of the diameter runner is 8 mm while the size of the wide gate is 10 mm and the thick gate is 0.8 mm. The validation process is repeated using Moldflow with the result of a concise injection time difference is 0.001 s. The new design of feed system able to eliminate the difference in filling time in this product.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123041204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This research discussed balancing operator workload on the automotive industry assembly line by developing a novel job rotation mathematical model using mixed-integer nonlinear programming (MINLP) method that aims to obtain optimal job rotation design results by considering ergonomic aspects. The implementation of job rotation in workforce planning is carried out by manufacturing industry to reduce musculoskeletal disorder (MSD) risk factors. Ergonomic analysis was carried out at each workstation to evaluate the physical workload of various jobs, in which the results were used as the parameters of the job rotation mathematical model developed in this research to schedule optimal job rotation and achieve a balanced cumulative workload. Ergonomics aspect was considered in designing the job rotation model to prevent sequentially high workload exposure for an operator and also adjust the operator's capacity to do work at the workstation because it will be related to additional training costs and time consequences. The result of job rotation programming in this research is the optimal work order for each worker so that the global daily workload will be balanced. The job rotation strategy proposed in this research succeeded in reducing the spread and deviation of the cumulative daily workload among workers by decreasing the standard deviation from 10.73 to 0.32, proving that the physical workload is equally distributed among operators.
{"title":"Job Rotation Optimization using Mixed-Integer Nonlinear Programming (MINLP) Method to Balance Operator Workload in Automotive Industry","authors":"Hilman Hanif, I. M. Hakim","doi":"10.1145/3429789.3429800","DOIUrl":"https://doi.org/10.1145/3429789.3429800","url":null,"abstract":"This research discussed balancing operator workload on the automotive industry assembly line by developing a novel job rotation mathematical model using mixed-integer nonlinear programming (MINLP) method that aims to obtain optimal job rotation design results by considering ergonomic aspects. The implementation of job rotation in workforce planning is carried out by manufacturing industry to reduce musculoskeletal disorder (MSD) risk factors. Ergonomic analysis was carried out at each workstation to evaluate the physical workload of various jobs, in which the results were used as the parameters of the job rotation mathematical model developed in this research to schedule optimal job rotation and achieve a balanced cumulative workload. Ergonomics aspect was considered in designing the job rotation model to prevent sequentially high workload exposure for an operator and also adjust the operator's capacity to do work at the workstation because it will be related to additional training costs and time consequences. The result of job rotation programming in this research is the optimal work order for each worker so that the global daily workload will be balanced. The job rotation strategy proposed in this research succeeded in reducing the spread and deviation of the cumulative daily workload among workers by decreasing the standard deviation from 10.73 to 0.32, proving that the physical workload is equally distributed among operators.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128469189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Inibatikita is an online clothing store company which sells its products through multiple online stores, each of which is associated with a partner influencer. Currently, there exist no ecommerce solution which can accommodate this business process. This research aims to develop a system which facilitates this business process while addressing scalability for up to 50000 users. After the requirements are gathered, a system analysis is performed to compare existing ecommerce solutions with a custom solution. Post analysis, system design takes place and is swiftly followed by development and testing; finishing with deployment of the system. The results of system analysis indicate that existing ecommerce solutions aren't able to accommodate a multiple store approach, while a custom NodeJS solution is capable of doing so. Development and testing then proves that a NodeJS solution is able to fulfill the business process while accommodating 50000 users through indexing and caching. The results show that a custom NodeJS solution addresses the business requirements and scalability of inibatikita, when existing solutions could not.
{"title":"Development of NodeJS based Backend System with Multiple Storefronts for Batik Online Store","authors":"G. William, Randy Anthony, James Purnama","doi":"10.1145/3429789.3429830","DOIUrl":"https://doi.org/10.1145/3429789.3429830","url":null,"abstract":"Inibatikita is an online clothing store company which sells its products through multiple online stores, each of which is associated with a partner influencer. Currently, there exist no ecommerce solution which can accommodate this business process. This research aims to develop a system which facilitates this business process while addressing scalability for up to 50000 users. After the requirements are gathered, a system analysis is performed to compare existing ecommerce solutions with a custom solution. Post analysis, system design takes place and is swiftly followed by development and testing; finishing with deployment of the system. The results of system analysis indicate that existing ecommerce solutions aren't able to accommodate a multiple store approach, while a custom NodeJS solution is capable of doing so. Development and testing then proves that a NodeJS solution is able to fulfill the business process while accommodating 50000 users through indexing and caching. The results show that a custom NodeJS solution addresses the business requirements and scalability of inibatikita, when existing solutions could not.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126481142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nowadays, the use of fossil fuel is growing rapidly and forests are widely lost due to fires and logging. It means massive CO2 emissions and a decline in CO2 absorption capacity, and drives to the situation that people should recognize global warming as world issue. The SDGs and COP-FCCC are the efforts that gain attention from around the world. In Japanese industry, the chemical industry using large plants is expected to contribute to the problem. In particular, the distillation process consumes as much as 40% of the energy of all production processes. For profit-making companies, as the technological challenge, the quality of distillation process is improved to meet customer requirements while keeping costs down. There is not energy perspective. This study focuses on this point, and aims at a performance improvement of distillation process in the corroborative chemical company by adapting Material Flow Cost Accounting (MFCA), an environment accounting method. This study gets two results as follows: First, three types of distillation structures are classified by waste type. Second, the relationship between the composition ratio of products in distillation and energy performance was clarified. From this result, the course of improvement direction can be shown by changing the operating condition of distillation.
{"title":"Analyzing Structural Loss of Sustainable Distillation Process by Material Flow Cost Accounting","authors":"Rena Ohara, Koichi Murata","doi":"10.1145/3429789.3429801","DOIUrl":"https://doi.org/10.1145/3429789.3429801","url":null,"abstract":"Nowadays, the use of fossil fuel is growing rapidly and forests are widely lost due to fires and logging. It means massive CO2 emissions and a decline in CO2 absorption capacity, and drives to the situation that people should recognize global warming as world issue. The SDGs and COP-FCCC are the efforts that gain attention from around the world. In Japanese industry, the chemical industry using large plants is expected to contribute to the problem. In particular, the distillation process consumes as much as 40% of the energy of all production processes. For profit-making companies, as the technological challenge, the quality of distillation process is improved to meet customer requirements while keeping costs down. There is not energy perspective. This study focuses on this point, and aims at a performance improvement of distillation process in the corroborative chemical company by adapting Material Flow Cost Accounting (MFCA), an environment accounting method. This study gets two results as follows: First, three types of distillation structures are classified by waste type. Second, the relationship between the composition ratio of products in distillation and energy performance was clarified. From this result, the course of improvement direction can be shown by changing the operating condition of distillation.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116906185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Becak is a traditional vehicle that is still widely used to transport goods or passengers. Currently, the use of becak is less desirable, so people turn to other public transportation. However, becak have become a source of income for many people. E-trike is an alternative vehicle that is used to replace the becak into a modern vehicle. To support e-trike sales, supporting facilities such as charging stations are needed. This paper aims to provide a proposal for a Supply Chain Network Design (SCND) to assist the city government in determining the location of the charging station so that it can serve all requests. The results of this study, there are 20 selected locations for charging stations that can serve requests.
{"title":"Determination of the Charging Station Facility Location-Allocation Model by Considering the Closest Distance: Case Study in Solo City","authors":"Bekti Nugrahadi, W. Sutopo, M. Hisjam","doi":"10.1145/3429789.3429848","DOIUrl":"https://doi.org/10.1145/3429789.3429848","url":null,"abstract":"Becak is a traditional vehicle that is still widely used to transport goods or passengers. Currently, the use of becak is less desirable, so people turn to other public transportation. However, becak have become a source of income for many people. E-trike is an alternative vehicle that is used to replace the becak into a modern vehicle. To support e-trike sales, supporting facilities such as charging stations are needed. This paper aims to provide a proposal for a Supply Chain Network Design (SCND) to assist the city government in determining the location of the charging station so that it can serve all requests. The results of this study, there are 20 selected locations for charging stations that can serve requests.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124854671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper proposes an improved design and simulation of rectangular microstrip antenna for mobile communication or especially 5G technology. The main contribution of this work is design simplification of the current model, in which only using design are required as usual in microstrip antenna compared to previously developed parasitic element model. The frequency band is achieved by forcing the model into smaller and calculation to determine the width and length of patch microstrip antenna. To test the effectiveness of the proposed method, CST simulations are carried out under very challenging conditions, namely step change in gap feed line, length of substrate, uses FR-4 of substrate and the performance of the model is evaluated against the popular parasitic element models. From the simulation work, it was found that the proposed model with optimized is superior when subjected by a frequency covering 26--28 GHz with center frequency 26.00 GHz. At the multi band types the coverage frequencies confirmed that from 22 GHz to 40 GHz and 25.93 GHz, 31.126 GHz, and 37.221 GHz as middle frequency of three types. Then maximum gain of this work is 6.85 dB. The method proposed in this paper can be used for all types of frequency coverage because it can be readily retrofitted to the any model rectangular microstrip.
{"title":"An Improved Design of Multiband Patch Antenna at 26 GHz for 5G Mobile","authors":"Dichi Syahbana, S. Rahmatia, P. Wulandari","doi":"10.1145/3429789.3429839","DOIUrl":"https://doi.org/10.1145/3429789.3429839","url":null,"abstract":"This paper proposes an improved design and simulation of rectangular microstrip antenna for mobile communication or especially 5G technology. The main contribution of this work is design simplification of the current model, in which only using design are required as usual in microstrip antenna compared to previously developed parasitic element model. The frequency band is achieved by forcing the model into smaller and calculation to determine the width and length of patch microstrip antenna. To test the effectiveness of the proposed method, CST simulations are carried out under very challenging conditions, namely step change in gap feed line, length of substrate, uses FR-4 of substrate and the performance of the model is evaluated against the popular parasitic element models. From the simulation work, it was found that the proposed model with optimized is superior when subjected by a frequency covering 26--28 GHz with center frequency 26.00 GHz. At the multi band types the coverage frequencies confirmed that from 22 GHz to 40 GHz and 25.93 GHz, 31.126 GHz, and 37.221 GHz as middle frequency of three types. Then maximum gain of this work is 6.85 dB. The method proposed in this paper can be used for all types of frequency coverage because it can be readily retrofitted to the any model rectangular microstrip.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"2002 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127316242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yeremia Kevin Ongkowijoyo, A. Pratama, T. D. Sofianti
Lean operation has become a very important concept to be adopted in every manufacturing company. Since the competition of companies that strives to be the best in their business are aligned with the spirit of continuous improvement from lean operation. And as a local toy manufacturing company, they also concerns' in continuously improve their process to reach a better customer satisfaction. This research aims to identify lean wastes in the focus of logistics as a part of supply chain in the company injection molding production line. Hence, by doing direct observation and brown paper critique to gather the data, it was found that the usage of push production system in the process of material preparation has leads to the delayed material supply to the production line as a problem. Therefore, to encounter the problem, Kanban system as a material management system and a tool to apply pull production system was proposed. In addition, the performance of Kanban system application between material department and production line in the company was analyzed by a business process simulation software and has leads to 13% improvement of supply chain metrics.
{"title":"Supply Chain Improvement in a Local Toy Manufacturing Company by a Kanban System","authors":"Yeremia Kevin Ongkowijoyo, A. Pratama, T. D. Sofianti","doi":"10.1145/3429789.3429851","DOIUrl":"https://doi.org/10.1145/3429789.3429851","url":null,"abstract":"Lean operation has become a very important concept to be adopted in every manufacturing company. Since the competition of companies that strives to be the best in their business are aligned with the spirit of continuous improvement from lean operation. And as a local toy manufacturing company, they also concerns' in continuously improve their process to reach a better customer satisfaction. This research aims to identify lean wastes in the focus of logistics as a part of supply chain in the company injection molding production line. Hence, by doing direct observation and brown paper critique to gather the data, it was found that the usage of push production system in the process of material preparation has leads to the delayed material supply to the production line as a problem. Therefore, to encounter the problem, Kanban system as a material management system and a tool to apply pull production system was proposed. In addition, the performance of Kanban system application between material department and production line in the company was analyzed by a business process simulation software and has leads to 13% improvement of supply chain metrics.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133739562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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