Implant brachytherapy is one of the therapies for Low Dose Rate (LDR) in prostate cancer. This type of therapy uses a source with low energy and penetration rate so that the organs around the prostate do not receive much of the absorbed dose. This study uses a calculation method Monte Carlo N-Particle 6 (MCNP-6) to calculate the interaction of photons with organ materials. The main objective of this research is to determine the number of seeds and the ideal source activity to achieve the optimal absorbed dose in the prostate and provide the minimum absorbed dose in the surrounding organs. Organs around the prostate include the testes, small intestine, descending colon wall, descending colon, sigmoid colon wall, bladder wall, and bladder. This study uses two types of radioisotope sources namely 103Pd and 131Cs which each has a photon energy of 21 keV and 30 keV. Variations made is the addition of the number of seeds from 60 to 100 at intervals of 8 seeds symmetrically away from the center of the prostate and variation of source activity from 0.1 mCi to 0.6 mCi at intervals of 0.1 mCi for each type of source. Results of this study obtained the relationship that the more the number of seeds the greater the dose received by the prostate and surrounding organs, as well as the addition of source activity. The effect of increasing the number of seeds can increase the absorbed dose more significantly than the effect of adding activity to the organs around the prostate. Optimal absorbed dose for 103Pd is 125 Gy and 115 Gy for 131Cs. Based on the simulation results with MCNP-6, it is obtained that the ideal combination for the optimal absorbed dose is obtained from the source 103Pd is the number of seed 60 with 0.3 mCi activity, and source 131Cs is the number of seed 76 with an activity of 0.5 mCi. Source 103Pd provides a lower absorbed dose to the organs around the prostate compared to the source 131Cs.
{"title":"Calculation of Absorbed Dose of 103Pd and 131Cs Sources in Prostate Cancer Brachytherapy Simulation Using Monte Carlo N-Particle 6 (MCNP-6) Software","authors":"Mumung Ridhuan Munggara, Nita Handayani, Fajar Arianto","doi":"10.4028/p-g56t9j","DOIUrl":"https://doi.org/10.4028/p-g56t9j","url":null,"abstract":"Implant brachytherapy is one of the therapies for Low Dose Rate (LDR) in prostate cancer. This type of therapy uses a source with low energy and penetration rate so that the organs around the prostate do not receive much of the absorbed dose. This study uses a calculation method Monte Carlo N-Particle 6 (MCNP-6) to calculate the interaction of photons with organ materials. The main objective of this research is to determine the number of seeds and the ideal source activity to achieve the optimal absorbed dose in the prostate and provide the minimum absorbed dose in the surrounding organs. Organs around the prostate include the testes, small intestine, descending colon wall, descending colon, sigmoid colon wall, bladder wall, and bladder. This study uses two types of radioisotope sources namely 103Pd and 131Cs which each has a photon energy of 21 keV and 30 keV. Variations made is the addition of the number of seeds from 60 to 100 at intervals of 8 seeds symmetrically away from the center of the prostate and variation of source activity from 0.1 mCi to 0.6 mCi at intervals of 0.1 mCi for each type of source. Results of this study obtained the relationship that the more the number of seeds the greater the dose received by the prostate and surrounding organs, as well as the addition of source activity. The effect of increasing the number of seeds can increase the absorbed dose more significantly than the effect of adding activity to the organs around the prostate. Optimal absorbed dose for 103Pd is 125 Gy and 115 Gy for 131Cs. Based on the simulation results with MCNP-6, it is obtained that the ideal combination for the optimal absorbed dose is obtained from the source 103Pd is the number of seed 60 with 0.3 mCi activity, and source 131Cs is the number of seed 76 with an activity of 0.5 mCi. Source 103Pd provides a lower absorbed dose to the organs around the prostate compared to the source 131Cs.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140694709","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}
Dina Millatina, Hikmah Nursidik, Maulana Yusuf Ahmadi, M. G. Wonoseto
The Nahdlatul Ulama economic institution (LPNU) DIY needs data as soon as possible to be used as a reference in formulating policies in order to improve the welfare of its members. Researchers made the web-based NUEcon application for data collection on the NU DIY economy to help make it easier for LPNU DIY to collect data. The method used is extreme programming (XP). XP can accept changes with a short development time even in a small team. The test results show that NUEcon can help facilitate NU DIY economic data collection.
伊斯兰教祈祷团经济机构（LPNU） DIY 需要尽快获得数据，以便在制定政策时作为参考，从而改善其成员的福利。研究人员制作了基于网络的 NUEcon 应用程序，用于收集 NU DIY 经济的数据，以帮助 LPNU DIY 更容易地收集数据。使用的方法是极限编程（XP）。即使在一个小团队中，XP 也能在很短的开发时间内接受更改。测试结果表明，NUEcon 有助于促进 NU DIY 经济数据的收集。
{"title":"Development Web-Based Economic Data Application of Nu DIY Using Extreme Programming","authors":"Dina Millatina, Hikmah Nursidik, Maulana Yusuf Ahmadi, M. G. Wonoseto","doi":"10.4028/p-3iogwc","DOIUrl":"https://doi.org/10.4028/p-3iogwc","url":null,"abstract":"The Nahdlatul Ulama economic institution (LPNU) DIY needs data as soon as possible to be used as a reference in formulating policies in order to improve the welfare of its members. Researchers made the web-based NUEcon application for data collection on the NU DIY economy to help make it easier for LPNU DIY to collect data. The method used is extreme programming (XP). XP can accept changes with a short development time even in a small team. The test results show that NUEcon can help facilitate NU DIY economic data collection.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140695157","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 consumption of coffee has its health benefits and its risks, one of the risks is mostly related to cardiovascular diseases. One of the diseases is hypertension which is considered “the silent killer” as it is a serious condition which promotes other complications and typically has no symptoms for a period of time until it has done significant damage. Acute hypertension can lead to a stroke. It is a very serious medical condition where the blood flow to the brain is poor, causing the death of cells within the brain. Some medications, surgeries and other healthcare programs are capable of controlling stroke, but stroke still remains to be the main cause of death and disability in Indonesia. However, provided that the consumption is restrained, multiple studies show that coffee consumption actually can reduce the risk of getting a stroke, by consuming between 2 to 4 cups of coffee per day. Additionally, coffee can reduce the likelihood of blood clots from forming and is likely to alter the blood vessel physiology. Therefore, the current project will explore the possibility of utilization of bioactive compounds other than caffeine from coffee beans that can be implemented in a form of supplements to help in treating patients both with stroke symptoms and during the recovery phase. Protein docking analysis is an alternative way to search and predict for drug discovery. Through protein docking analysis we can gain information on the bioactive compounds and their respective interactions with the target. Based on the virtual screening pipeline, it is predicted that Dehydrokahweol could elicit possible lead for the anti-stroke activity.
{"title":"Molecular Simulation of Coffee Beans’ Natural Products as Lead Compounds for Stroke Remedy","authors":"Muhammad Rubani, A. Parikesit","doi":"10.4028/p-k5delo","DOIUrl":"https://doi.org/10.4028/p-k5delo","url":null,"abstract":"The consumption of coffee has its health benefits and its risks, one of the risks is mostly related to cardiovascular diseases. One of the diseases is hypertension which is considered “the silent killer” as it is a serious condition which promotes other complications and typically has no symptoms for a period of time until it has done significant damage. Acute hypertension can lead to a stroke. It is a very serious medical condition where the blood flow to the brain is poor, causing the death of cells within the brain. Some medications, surgeries and other healthcare programs are capable of controlling stroke, but stroke still remains to be the main cause of death and disability in Indonesia. However, provided that the consumption is restrained, multiple studies show that coffee consumption actually can reduce the risk of getting a stroke, by consuming between 2 to 4 cups of coffee per day. Additionally, coffee can reduce the likelihood of blood clots from forming and is likely to alter the blood vessel physiology. Therefore, the current project will explore the possibility of utilization of bioactive compounds other than caffeine from coffee beans that can be implemented in a form of supplements to help in treating patients both with stroke symptoms and during the recovery phase. Protein docking analysis is an alternative way to search and predict for drug discovery. Through protein docking analysis we can gain information on the bioactive compounds and their respective interactions with the target. Based on the virtual screening pipeline, it is predicted that Dehydrokahweol could elicit possible lead for the anti-stroke activity.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140698115","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}
To maintain its competitiveness, the Indonesian CPO industry must apply lean techniques such as value stream mapping (VSM) that can be utilized to increase the process efficiency. While there have been several studies which attempted to apply VSM techniques to the CPO industry, the results of these studies have not been summarized and compared. This paper aims to summarize the findings of previous VSM studies in Indonesian CPO industry and provide the directions for future researches. In this study, the brief literature review is applied in which the relevant articles are reviewed according to the scope of study, approach or method, and types of identified wastes. Various types of wastes found from the initial stage (FFB reception) to the final stage (CPO storage). The average process cycle efficiency score indicates the requirements for improvement actions. Recommendations for future VSM researches include the scope of the process stages studied, process mapping for future condition, and the requirements of green and sustainability aspects.
{"title":"Value Stream Mapping in Crude Palm Oil Industry: A Brief Review","authors":"Syamsul Anwar","doi":"10.4028/p-blliw9","DOIUrl":"https://doi.org/10.4028/p-blliw9","url":null,"abstract":"To maintain its competitiveness, the Indonesian CPO industry must apply lean techniques such as value stream mapping (VSM) that can be utilized to increase the process efficiency. While there have been several studies which attempted to apply VSM techniques to the CPO industry, the results of these studies have not been summarized and compared. This paper aims to summarize the findings of previous VSM studies in Indonesian CPO industry and provide the directions for future researches. In this study, the brief literature review is applied in which the relevant articles are reviewed according to the scope of study, approach or method, and types of identified wastes. Various types of wastes found from the initial stage (FFB reception) to the final stage (CPO storage). The average process cycle efficiency score indicates the requirements for improvement actions. Recommendations for future VSM researches include the scope of the process stages studied, process mapping for future condition, and the requirements of green and sustainability aspects.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140697502","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}
Yessi Yunitasari, Latjuba S.T.T. Sofyana, Maria Ulfah Siregar
Social media analytics is a form of information analytics that is quite important in today's cyber situation. Cybercrime is criminal behaviour based on computers and internet networks. Cybercriminals usually hack systems to obtain the personal information of victims. There are many types of cybercrimes. There are four types of cybercrimes: Phishing scams, Hacking, Cyber Stalking and Cyber Bullying. This research aims to help the process analysis by the Police or investigative institutions of the private sector in knowing the results of public sentiment on social media related to current cyber crimes. Ciber Crime identifying using machine learning techniques, based sentiment analysis. Method used for sentiment analysis related to cybercrime is Random Forest, Naïve Bayes, and KNN. The highest accuracy value of the three methods tried is the Naive Bayes algorithm of 99.45%. The highest precision value uses the Naive Bayes algorithm of 99.80%, and the highest recall value uses the random forest algorithm of 100%.
{"title":"Cyber Crime Identifying Using Machine Learning Techniques - Based Sentiment Analysis","authors":"Yessi Yunitasari, Latjuba S.T.T. Sofyana, Maria Ulfah Siregar","doi":"10.4028/p-j46rcy","DOIUrl":"https://doi.org/10.4028/p-j46rcy","url":null,"abstract":"Social media analytics is a form of information analytics that is quite important in today's cyber situation. Cybercrime is criminal behaviour based on computers and internet networks. Cybercriminals usually hack systems to obtain the personal information of victims. There are many types of cybercrimes. There are four types of cybercrimes: Phishing scams, Hacking, Cyber Stalking and Cyber Bullying. This research aims to help the process analysis by the Police or investigative institutions of the private sector in knowing the results of public sentiment on social media related to current cyber crimes. Ciber Crime identifying using machine learning techniques, based sentiment analysis. Method used for sentiment analysis related to cybercrime is Random Forest, Naïve Bayes, and KNN. The highest accuracy value of the three methods tried is the Naive Bayes algorithm of 99.45%. The highest precision value uses the Naive Bayes algorithm of 99.80%, and the highest recall value uses the random forest algorithm of 100%.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140696923","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}
Bakpia is made from green beans and sugar wrapped in flour. Bakpia Latief Kediri is a bakpia industry in the City of Kediri. The company needs help in the production process activities. There are still products that need to be fixed. The types of it defects in the company are burnt and cracked. This study aimed to determine the performance of its quality control, determine the most dominant types of defects in its products, and provide suggestions for improving its production process. The research method uses the Statistical Quality Control method. Data is taken in the form of primary data and secondary data. Primary data was collected by interview and observation. Interviews were conducted using in-depth interviews. Observations were made for 30 days. Data analysis uses statistical tools, which include check sheets, histograms, fishbone diagrams, Pareto diagrams, and control charts p. Bakpia quality control at Bakpia Latief is under control because the p chart control chart shows that only one point is out of the control limits. The most dominant defect in its products is burnt, with an average percentage of 0.617%. Corrective actions to reduce the existence of defective products, namely repairing and maintaining production machines, improving the stages of the production process, developing human resources, and repairing production facilities. Keywords: Product Defects, Quality Control, Statistical Quality Control
Bakpia 是用绿豆和糖裹在面粉里制成的。Bakpia Latief Kediri 是基迪里市的一家烘焙行业。该公司在生产过程中需要帮助。仍有一些产品需要修复。该公司的缺陷类型为烧焦和破裂。本研究旨在确定其质量控制的绩效，确定其产品中最主要的缺陷类型，并为改进其生产流程提供建议。研究方法采用统计质量控制法。数据采用原始数据和二手数据的形式。原始数据通过访谈和观察收集。访谈采用深度访谈。观察期为 30 天。数据分析使用统计工具，包括核对表、直方图、鱼骨图、帕累托图和控制图 p. Bakpia Latief 的质量控制处于受控状态，因为 p 图控制图显示只有一个点超出了控制范围。其产品中最主要的缺陷是烧焦，平均比例为 0.617%。为减少缺陷产品的存在而采取的纠正措施，即修理和维护生产机器、改进生产过程的各个阶段、开发人力资源和修理生产设施。关键词产品缺陷、质量控制、统计质量控制
{"title":"Bakpia Quality Control Analysis Using the Statistical Quality Control (SQC) Method (Case Study: SMEs Bakpia Latief, Kediri)","authors":"Andika Yuli Heryanto","doi":"10.4028/p-fzb5j6","DOIUrl":"https://doi.org/10.4028/p-fzb5j6","url":null,"abstract":"Bakpia is made from green beans and sugar wrapped in flour. Bakpia Latief Kediri is a bakpia industry in the City of Kediri. The company needs help in the production process activities. There are still products that need to be fixed. The types of it defects in the company are burnt and cracked. This study aimed to determine the performance of its quality control, determine the most dominant types of defects in its products, and provide suggestions for improving its production process. The research method uses the Statistical Quality Control method. Data is taken in the form of primary data and secondary data. Primary data was collected by interview and observation. Interviews were conducted using in-depth interviews. Observations were made for 30 days. Data analysis uses statistical tools, which include check sheets, histograms, fishbone diagrams, Pareto diagrams, and control charts p. Bakpia quality control at Bakpia Latief is under control because the p chart control chart shows that only one point is out of the control limits. The most dominant defect in its products is burnt, with an average percentage of 0.617%. Corrective actions to reduce the existence of defective products, namely repairing and maintaining production machines, improving the stages of the production process, developing human resources, and repairing production facilities. Keywords: Product Defects, Quality Control, Statistical Quality Control","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140698612","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 explores water users’ perceptions regarding access, quantity, quality and water treatments in urban area of Yogyakarta and Hanoi. This research’s approach is qualitative and descriptive. The case studied was in the City of Yogyakarta, Indonesia and Hanoi Vietnam. Subjects were chosen using snowballing techniques. The result showed there was similar perceptions among respondents in both cities, in terms of access, quantity, and quality of water. All respondents decribed that they have adequate access to water supply, whether provided by the water company or derived from dug well. Repondents’s perceptions showed a degree of satisfaction with the quantity of water but a slight concern of quality.
{"title":"Household Water Supply in Yogyakarta (Indonesia) and Hanoi (Vietnam)","authors":"Arifah Khusnuryani, Eka Sulistiyowati","doi":"10.4028/p-o3cfvn","DOIUrl":"https://doi.org/10.4028/p-o3cfvn","url":null,"abstract":"This research explores water users’ perceptions regarding access, quantity, quality and water treatments in urban area of Yogyakarta and Hanoi. This research’s approach is qualitative and descriptive. The case studied was in the City of Yogyakarta, Indonesia and Hanoi Vietnam. Subjects were chosen using snowballing techniques. The result showed there was similar perceptions among respondents in both cities, in terms of access, quantity, and quality of water. All respondents decribed that they have adequate access to water supply, whether provided by the water company or derived from dug well. Repondents’s perceptions showed a degree of satisfaction with the quantity of water but a slight concern of quality.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140697213","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}
Research on making edible films from kepok banana peels with glycerol-sorbitol plasticizer aims to analyze the mechanical properties and functional groups of edible films from kepok banana peels with a comparison of the concentration of the plasticizer combination of glycerol-sorbitol. This research consisted of 3 stages, namely making kepok banana peel starch, making edible films, and characterizing kepok banana peel starch and edible films. The yield of kepok banana peel starch obtained was 11.94%. Edible film production was carried out with variations in the glycerol-sorbitol concentration ratio of 100:0, 75:25, 50:50, 25:75 and 0:100 on a basis of 40% (w/w) of total starch weight. Functional group analysis of kepok banana peel starch and edible film was carried out with Fourier Transform Infrared (FTIR). Testing the characteristics of the edible film includes thickness, tensile strength, elongation, and Young's modulus. The results showed that edible film was successfully made with mechanical properties that tended to comply with the Japanese Industrial Standard (JIS) 1975 on the parameters of thickness, tensile strength, and young's modulus.
{"title":"Biosynthesis and Characterization of Edible Films from Kepok Banana Peel Starch with a Combination of Glycerol-Sorbitol Plasticizer","authors":"Alvina Lutviyani, E. Sedyadi, I. N. Indrajati","doi":"10.4028/p-otgy4q","DOIUrl":"https://doi.org/10.4028/p-otgy4q","url":null,"abstract":"Research on making edible films from kepok banana peels with glycerol-sorbitol plasticizer aims to analyze the mechanical properties and functional groups of edible films from kepok banana peels with a comparison of the concentration of the plasticizer combination of glycerol-sorbitol. This research consisted of 3 stages, namely making kepok banana peel starch, making edible films, and characterizing kepok banana peel starch and edible films. The yield of kepok banana peel starch obtained was 11.94%. Edible film production was carried out with variations in the glycerol-sorbitol concentration ratio of 100:0, 75:25, 50:50, 25:75 and 0:100 on a basis of 40% (w/w) of total starch weight. Functional group analysis of kepok banana peel starch and edible film was carried out with Fourier Transform Infrared (FTIR). Testing the characteristics of the edible film includes thickness, tensile strength, elongation, and Young's modulus. The results showed that edible film was successfully made with mechanical properties that tended to comply with the Japanese Industrial Standard (JIS) 1975 on the parameters of thickness, tensile strength, and young's modulus.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140698340","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}
PT. Naturindo Fresh is a company that produces and distributes original Indonesian herbal medicines. The company does not have a planned schedule to minimize the total production time. The production is carried out by considering the products stock and the number of orders from consumers. The employees are free to randomly choose which products will be produced first. The purpose of this research is to determine the job sequence and calculating the total production time (makespan), and identify the sequence that create smallest makespan. The methods used in this research are Campbell, Dudek, & Smith (CDS) method, Palmer method, and Dannenbring method. The calculation results shows that the company's actual scheduling produces a makespan of 30,725.08 minutes. The result of CDS method produces the makespan of 30,634.18 minutes. Palmer's method produces the makespan of 30,743.75 minutes, and the Dannenbring method also yield the makespan of 30,743.75 minutes. In conclusion, the job scheduling with CDS method has the smallest makespan which is recommended to be applied in the company to minimize the total production time.
{"title":"Flowshop Production Scheduling Using the Campbell, Dudek, Smith (CDS), Palmer, and Dannenbring Methods to Minimize the Total Production Time (Case Study: PT. Naturindo Fresh Kulon Progo, Indonesia)","authors":"Taufik Alfuad, Khusna Dwijayanti","doi":"10.4028/p-ps93tq","DOIUrl":"https://doi.org/10.4028/p-ps93tq","url":null,"abstract":"PT. Naturindo Fresh is a company that produces and distributes original Indonesian herbal medicines. The company does not have a planned schedule to minimize the total production time. The production is carried out by considering the products stock and the number of orders from consumers. The employees are free to randomly choose which products will be produced first. The purpose of this research is to determine the job sequence and calculating the total production time (makespan), and identify the sequence that create smallest makespan. The methods used in this research are Campbell, Dudek, & Smith (CDS) method, Palmer method, and Dannenbring method. The calculation results shows that the company's actual scheduling produces a makespan of 30,725.08 minutes. The result of CDS method produces the makespan of 30,634.18 minutes. Palmer's method produces the makespan of 30,743.75 minutes, and the Dannenbring method also yield the makespan of 30,743.75 minutes. In conclusion, the job scheduling with CDS method has the smallest makespan which is recommended to be applied in the company to minimize the total production time.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140697861","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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