Air accidents happened when all layers in Human Factor Analysis Classification System (HFACS) penetrated. The last layer Unsafe Act has defence failures of decision error, skill-based error, perceptual error, and violation (routine and exceptional). In this study Unsafe Act layers defence failures were taken from Indonesian National Transportation Safety Committee/Komisi Nasional Keselamatan Transportasi (KNKT) narrative descriptions of five accidents in Wamena Airport. Human factor Intervention Matrix (HFIX) intervention strategies were taken from KNKT's recommendations of the accidents. Blocking the errors in the Unsafe Act layer will prevent accidents by doing GO AROUND of un-stabilized approach, pilots' GO AROUND hesitation is a question need answers in this study. The GO AROUND is the goal in the Analytical Hierarchy Process (AHP) structure model and prioritizing recommendations using the AHP approach is the aim of the study. According to global weight value calculated, the first rank is technology/engineering intervention classification with 7.74%. The most related KNKT's recommendation with GO AROUND in this classification, is the airport has no Instrument Flight Rule (IFR) approach and GO AROUND procedure for narrow body aircraft/jet. If a flight is experiencing un-stabilized approach the pilots need to GO AROUND, and will be hard decision to make without guidance of GO AROUND procedure in Wamena airport which surrounded by mountains in IFR condition. Continue landing or GOING AROUND, both choices have possibility to lead in incidents or accidents. Mitigation if this first rank priority hasn't been installed, is the operation of narrow body jet in Wamena airport should be strictly limited by weather condition (only full Visual Flight Rule/VFR) and aircraft's performance. Operation's approval for narrow body jet should be clarified daily when all the requirements of safety can be met, or closure of airport should be done.
{"title":"Application of Human Factors Analysis to Prioritize KNKT's Recommendations: A Case Study of Wamena Airport's Air Accidents","authors":"A. Haryono","doi":"10.1145/3429789.3429791","DOIUrl":"https://doi.org/10.1145/3429789.3429791","url":null,"abstract":"Air accidents happened when all layers in Human Factor Analysis Classification System (HFACS) penetrated. The last layer Unsafe Act has defence failures of decision error, skill-based error, perceptual error, and violation (routine and exceptional). In this study Unsafe Act layers defence failures were taken from Indonesian National Transportation Safety Committee/Komisi Nasional Keselamatan Transportasi (KNKT) narrative descriptions of five accidents in Wamena Airport. Human factor Intervention Matrix (HFIX) intervention strategies were taken from KNKT's recommendations of the accidents. Blocking the errors in the Unsafe Act layer will prevent accidents by doing GO AROUND of un-stabilized approach, pilots' GO AROUND hesitation is a question need answers in this study. The GO AROUND is the goal in the Analytical Hierarchy Process (AHP) structure model and prioritizing recommendations using the AHP approach is the aim of the study. According to global weight value calculated, the first rank is technology/engineering intervention classification with 7.74%. The most related KNKT's recommendation with GO AROUND in this classification, is the airport has no Instrument Flight Rule (IFR) approach and GO AROUND procedure for narrow body aircraft/jet. If a flight is experiencing un-stabilized approach the pilots need to GO AROUND, and will be hard decision to make without guidance of GO AROUND procedure in Wamena airport which surrounded by mountains in IFR condition. Continue landing or GOING AROUND, both choices have possibility to lead in incidents or accidents. Mitigation if this first rank priority hasn't been installed, is the operation of narrow body jet in Wamena airport should be strictly limited by weather condition (only full Visual Flight Rule/VFR) and aircraft's performance. Operation's approval for narrow body jet should be clarified daily when all the requirements of safety can be met, or closure of airport should be done.","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":"123392253","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}
Wind energy is one of the potential renewable energy in Indonesia, however low wind speed turbine needs to be designed to adjust for available wind characteristic in the area. Vertical axis wind turbine with Savonius type is suitable for low wind speed application and in this paper turbine design has been optimized aerodynamically using computational fluid dynamics and following raw material size constraint. One-level savonius wind turbine has been designed and compared to previous work of two-lavel wind turbine. Based on CFD simulations, one-level turbine has better performance than the other one. Both wind turbines have large torque at zero RPM which indicates that they are suitable for low wind speed application.
{"title":"Simple Vertical Axis Wind Turbine for Low Wind Speed","authors":"D. Hendriana, E. Budiarto, Arko Djajadi","doi":"10.1145/3429789.3429874","DOIUrl":"https://doi.org/10.1145/3429789.3429874","url":null,"abstract":"Wind energy is one of the potential renewable energy in Indonesia, however low wind speed turbine needs to be designed to adjust for available wind characteristic in the area. Vertical axis wind turbine with Savonius type is suitable for low wind speed application and in this paper turbine design has been optimized aerodynamically using computational fluid dynamics and following raw material size constraint. One-level savonius wind turbine has been designed and compared to previous work of two-lavel wind turbine. Based on CFD simulations, one-level turbine has better performance than the other one. Both wind turbines have large torque at zero RPM which indicates that they are suitable for low wind speed application.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"76 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":"114551264","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}
Indonesia is the leading country of palm oil producers, it reaches a total area of 12.5 million hectares plantation. It generates excessive wastes as well. From those wastes, Oil Palm Frond (OPF) contributes to 61% of it. It is usually being left as a waste in the natural environment or become a fertilizer around the plantation. Instead of leaving it as a waste, it is better to make use of OPF to become a renewable source of energy. It could be a substrate to produce bioethanol because of its high sugar content. The objective of this study is to find the best method and condition to use OPF as bioethanol fermentation raw material. The methodology used in this study is literature review. Several studies have been done. It is proven that there are two ways to process OPF. First method consists of physical pretreatment of milling and drying the OPF, to obtain the dried fibers before it goes to chemical pretreatment, which includes soaking the OPF in acid or alkaline solution, prior to fermentation using Saccharomyces Cerevisiae. Another method, fermentation is carried out on the juice obtained by simply pressing the OPF. From all the research reviewed, the best method is using the juice pressed from OPF. The juice from OPF could consists up to 650 g/L sugar and has high yield of ethanol production. The OPF should be from an oil palm tree with the age of 3--4 years old to have optimum sugar content. Also, OPF that is directly connected to the inner part of the trunk have the possibility to contain more sugars than other fronds.
{"title":"Bioethanol Production from Oil Palm Fronds Biomass Waste Review","authors":"N. Gloria, Evita H. Legowo, I. Kartawiria","doi":"10.1145/3429789.3429854","DOIUrl":"https://doi.org/10.1145/3429789.3429854","url":null,"abstract":"Indonesia is the leading country of palm oil producers, it reaches a total area of 12.5 million hectares plantation. It generates excessive wastes as well. From those wastes, Oil Palm Frond (OPF) contributes to 61% of it. It is usually being left as a waste in the natural environment or become a fertilizer around the plantation. Instead of leaving it as a waste, it is better to make use of OPF to become a renewable source of energy. It could be a substrate to produce bioethanol because of its high sugar content. The objective of this study is to find the best method and condition to use OPF as bioethanol fermentation raw material. The methodology used in this study is literature review. Several studies have been done. It is proven that there are two ways to process OPF. First method consists of physical pretreatment of milling and drying the OPF, to obtain the dried fibers before it goes to chemical pretreatment, which includes soaking the OPF in acid or alkaline solution, prior to fermentation using Saccharomyces Cerevisiae. Another method, fermentation is carried out on the juice obtained by simply pressing the OPF. From all the research reviewed, the best method is using the juice pressed from OPF. The juice from OPF could consists up to 650 g/L sugar and has high yield of ethanol production. The OPF should be from an oil palm tree with the age of 3--4 years old to have optimum sugar content. Also, OPF that is directly connected to the inner part of the trunk have the possibility to contain more sugars than other fronds.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"63 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":"134137851","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}
M. Abdillah, A. Krismanto, Teguh Aryo Nugroho, H. Setiadi, Nita Indriani Pertiwi, K. Mahmoud, M. D. Prasetio
A power transformer is one of the most important and valuable components for the power system network. This device is critical to ensure power quality and reliable electricity supply for consumers. When the power transformer could not work properly or out of service in unforeseen ways, it provides a severe impact on power system utilities and customers in term of the expensive of transformer's replacement cost and revenue lost caused by the electrical blackout. To overcome these issues, the proper prognostics health management (PHM) system as a tool for condition monitoring and health assessment of these valuable assets is required. This paper proposed a PHM system based on a kernel extreme learning machine (K-ELM) for power transformer's health assessment. Two sets of variable combinations called Set-1 and Set-2 were considered to examine the robustness and efficacy of the proposed method. In Set-1, the input variables were water content, total acidity, breakdown voltage, dissipation factor, dissolved combustible gases, and 2-furfuraldehyde. While the output of PHM system was the health condition which categorized as good, moderate, and bad circumstances. Set-2 utilized water content, total acidity, breakdown voltage, dissipation factor, and interfacial tension as input variables. Whereas, the PHM system outputs consisted of four categories: normal, good, moderate, and bad. The proposed method with two sets of variables had showed the satisfactory results for transformer's health condition assessment compared to an extreme learning machine (ELM), support vector machine (SVM), and least-square support vector machine (LS-SVM) in terms of learning and testing accuracies and computation time. The proposed PHM system using the Set-1 dataset could assess the transformer health as of 100% while in terms of the testing process, the proposed PHM system has an excellent accuracy result as of 68.67%. Furthermore, the proposed PHM system using the Set-2 dataset had successfully assessed the transformer health as of 100%. In the testing phase, the proposed PHM system model has a rigorous result for its accuracy result as of 93.61%.
{"title":"Prognostics Health Management (PHM) System for Power Transformer Using Kernel Extreme Learning Machine (K-ELM)","authors":"M. Abdillah, A. Krismanto, Teguh Aryo Nugroho, H. Setiadi, Nita Indriani Pertiwi, K. Mahmoud, M. D. Prasetio","doi":"10.1145/3429789.3429822","DOIUrl":"https://doi.org/10.1145/3429789.3429822","url":null,"abstract":"A power transformer is one of the most important and valuable components for the power system network. This device is critical to ensure power quality and reliable electricity supply for consumers. When the power transformer could not work properly or out of service in unforeseen ways, it provides a severe impact on power system utilities and customers in term of the expensive of transformer's replacement cost and revenue lost caused by the electrical blackout. To overcome these issues, the proper prognostics health management (PHM) system as a tool for condition monitoring and health assessment of these valuable assets is required. This paper proposed a PHM system based on a kernel extreme learning machine (K-ELM) for power transformer's health assessment. Two sets of variable combinations called Set-1 and Set-2 were considered to examine the robustness and efficacy of the proposed method. In Set-1, the input variables were water content, total acidity, breakdown voltage, dissipation factor, dissolved combustible gases, and 2-furfuraldehyde. While the output of PHM system was the health condition which categorized as good, moderate, and bad circumstances. Set-2 utilized water content, total acidity, breakdown voltage, dissipation factor, and interfacial tension as input variables. Whereas, the PHM system outputs consisted of four categories: normal, good, moderate, and bad. The proposed method with two sets of variables had showed the satisfactory results for transformer's health condition assessment compared to an extreme learning machine (ELM), support vector machine (SVM), and least-square support vector machine (LS-SVM) in terms of learning and testing accuracies and computation time. The proposed PHM system using the Set-1 dataset could assess the transformer health as of 100% while in terms of the testing process, the proposed PHM system has an excellent accuracy result as of 68.67%. Furthermore, the proposed PHM system using the Set-2 dataset had successfully assessed the transformer health as of 100%. In the testing phase, the proposed PHM system model has a rigorous result for its accuracy result as of 93.61%.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"28 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":"132456235","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}
Muriani Emelda Isharyani, B. M. Sopha, M. A. Wibisono
This study develops a conceptual model that linked smart consumer experience with consumer purchase intention toward smart retail, in order to identified factors that influence consumer to make purchase at smart retail. As a viewpoint, this study employs a review of theories, knowledge, ideas, and findings in academically oriented literature, drawing upon the actual challenges in smart retail, to propose a new perspective and formulates an emerging research agenda. The research model proposes that perceived advantage, perceived ease of use, perceived enjoyment, perceived risk, perceived novelty of SRT, personalization, and interactivity drive consumer experience with smart technology in retail environment, which leads to increases in perceived shopping value and retail store loyalty. Consumer with a higher level of perceived shopping value and retail store loyalty will be more likely to develop purchase intention.
{"title":"Conceptual Model of Consumers Purchase Intention Towards Smart Retail: A Literature Review","authors":"Muriani Emelda Isharyani, B. M. Sopha, M. A. Wibisono","doi":"10.1145/3429789.3429812","DOIUrl":"https://doi.org/10.1145/3429789.3429812","url":null,"abstract":"This study develops a conceptual model that linked smart consumer experience with consumer purchase intention toward smart retail, in order to identified factors that influence consumer to make purchase at smart retail. As a viewpoint, this study employs a review of theories, knowledge, ideas, and findings in academically oriented literature, drawing upon the actual challenges in smart retail, to propose a new perspective and formulates an emerging research agenda. The research model proposes that perceived advantage, perceived ease of use, perceived enjoyment, perceived risk, perceived novelty of SRT, personalization, and interactivity drive consumer experience with smart technology in retail environment, which leads to increases in perceived shopping value and retail store loyalty. Consumer with a higher level of perceived shopping value and retail store loyalty will be more likely to develop purchase intention.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"75 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":"133282704","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 efficiency of dwell time at the loading and unloading port is crucial for the overall efficiency of logistics costs. While the Government targets the dwell time to only two days on average, the dwell time average at major Indonesian ports is at 3.5 days. This condition become an obstacle for Indonesia to compete in global port operations. This paper presents how the Fuzzy Analytic Hierarchy Process (Fuzzy AHP) approach may help the decision maker in Port operations to prioritizing criteria which are crucial to streamlining the dwell time at the Port Tanjung Priok. Three experts were involved in this study, examining four criteria and 16 sub-criteria. This study found that the Human Resource Management becomes the most dominant criterion to be prioritized, followed by the IT-based Licensing Process, the Loading-unloading process, and the Customer Knowledge Management.
{"title":"Prioritizing Criteria for Dwell Time Efficiency in Port Logistic Process","authors":"O. Sunardi, Yenny Yunita Somakila","doi":"10.1145/3429789.3429845","DOIUrl":"https://doi.org/10.1145/3429789.3429845","url":null,"abstract":"The efficiency of dwell time at the loading and unloading port is crucial for the overall efficiency of logistics costs. While the Government targets the dwell time to only two days on average, the dwell time average at major Indonesian ports is at 3.5 days. This condition become an obstacle for Indonesia to compete in global port operations. This paper presents how the Fuzzy Analytic Hierarchy Process (Fuzzy AHP) approach may help the decision maker in Port operations to prioritizing criteria which are crucial to streamlining the dwell time at the Port Tanjung Priok. Three experts were involved in this study, examining four criteria and 16 sub-criteria. This study found that the Human Resource Management becomes the most dominant criterion to be prioritized, followed by the IT-based Licensing Process, the Loading-unloading process, and the Customer Knowledge Management.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"87 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":"131707109","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}
Rully Kusumajaya, Nurdianti Rizki Hapsari, Yuki Istianto, A. Nugroho, G. Wibowanto
Biometrics is already popularly used on various applications for authentication, especially authentication using smartphone. Various smartphone applications are developed to authenticating the users using biometrics modality, such as face, fingerprint and even iris. The combination between biometrics and smartphone enable the users to be authenticated and able to access the information and services. We proposed a remote biometric authentication, a system to access the public services using smartphone and biometrics for authentication. This system is intended to be connected to a Biometric Identity Service which host the enrolled biometric data. The result of authentication will be subsequently passed to the third party / public service providers to ensure that the person is identified correctly and has the right to access the public service. Fingerprint is chosen as biometrics trait, and the experimental results shows that the system is able to authenticated the user remotely. The finger of the resident is scanned by a fingerprint sensor connected to the smartphone, and it is sent to a server in the third party for authentication. The authentication result is returned back to the client. If it is success, the resident is allowed to access the public service. The system was evaluated using 22 persons and the result was promising.
{"title":"Design of Remote Biometrics Authentication System to Access Public Services from Remote Area","authors":"Rully Kusumajaya, Nurdianti Rizki Hapsari, Yuki Istianto, A. Nugroho, G. Wibowanto","doi":"10.1145/3429789.3429866","DOIUrl":"https://doi.org/10.1145/3429789.3429866","url":null,"abstract":"Biometrics is already popularly used on various applications for authentication, especially authentication using smartphone. Various smartphone applications are developed to authenticating the users using biometrics modality, such as face, fingerprint and even iris. The combination between biometrics and smartphone enable the users to be authenticated and able to access the information and services. We proposed a remote biometric authentication, a system to access the public services using smartphone and biometrics for authentication. This system is intended to be connected to a Biometric Identity Service which host the enrolled biometric data. The result of authentication will be subsequently passed to the third party / public service providers to ensure that the person is identified correctly and has the right to access the public service. Fingerprint is chosen as biometrics trait, and the experimental results shows that the system is able to authenticated the user remotely. The finger of the resident is scanned by a fingerprint sensor connected to the smartphone, and it is sent to a server in the third party for authentication. The authentication result is returned back to the client. If it is success, the resident is allowed to access the public service. The system was evaluated using 22 persons and the result was promising.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"9 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":"124765350","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}
Ramadhani Kurniawan, A. Kurniawati, Afrin FauzyaRizana
Based on data on the New Student Selection (NSS) at Telkom University in the last three years, there are international study programs that have experienced a decrease in the ratio of the number of participants for the NSS compared to the capacity. A limited number of employees can also be an obstacle in marketing Telkom University to schools on-site in various cities. Based on enrollment data in 2019, there were more than 500 schools from which participants participated in international class study programs. Because there are quite a lot of cities, it would be better if displayed in the form of a map that can display the number of participants who took part in the selection of new students from each city. In this research, a case study was conducted in an international class aimed at designing a geographical information system to map the Telkom University roadshow locations. The system will be built using the Rapid Application Development (RAD) model. This research produces a GIS that maps alternatives that provide information related to registrants from various cities by mapping the data of each alternative city into a map so that users can be helped in considering the cities that need to be visited for the roadshow and also the resources needed for the visit. Based on black-box testing and user acceptance tests, it is concluded that the system is successfully carrying out its functions according to the design.
{"title":"Mapping of Telkom University Roadshow Location Using Geographic Information System","authors":"Ramadhani Kurniawan, A. Kurniawati, Afrin FauzyaRizana","doi":"10.1145/3429789.3429840","DOIUrl":"https://doi.org/10.1145/3429789.3429840","url":null,"abstract":"Based on data on the New Student Selection (NSS) at Telkom University in the last three years, there are international study programs that have experienced a decrease in the ratio of the number of participants for the NSS compared to the capacity. A limited number of employees can also be an obstacle in marketing Telkom University to schools on-site in various cities. Based on enrollment data in 2019, there were more than 500 schools from which participants participated in international class study programs. Because there are quite a lot of cities, it would be better if displayed in the form of a map that can display the number of participants who took part in the selection of new students from each city. In this research, a case study was conducted in an international class aimed at designing a geographical information system to map the Telkom University roadshow locations. The system will be built using the Rapid Application Development (RAD) model. This research produces a GIS that maps alternatives that provide information related to registrants from various cities by mapping the data of each alternative city into a map so that users can be helped in considering the cities that need to be visited for the roadshow and also the resources needed for the visit. Based on black-box testing and user acceptance tests, it is concluded that the system is successfully carrying out its functions according to the design.","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":"122837811","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}
Ahmad Jihad, Affiano Akbar Nur Pratama, C. Yudha, M. Rahmawati, H. Widiyandari, A. Purwanto
LiNi0.6Mn0.2Co0.2O2 or NMC622 is a promising cathode material for Li-ion batteries. In this study, NMC622 was synthesized using batch oxalate co-precipitation followed by high temperature lithiation and sintering. Direct modification of NMC622 was employed via direct solid-state doping of Zn, Cu and Mg atoms at concentration of 0%, 1%, 3%, 5% and 10%. Doping source was obtained via simple and rapid precipitation. The doping was performed during LiOH mixing with NMC precursor. The doping source was pre-characterized using XRD analysis before the doping process. The final doped and un-doped NMC622 was analyzed structurally to study the optimum doping effect based on several structural parameters such as lattice parameters, lattice parameters ratio, cation mixing level, degree of hexagonal ordering and crystallite size.
{"title":"Effect of Zn, Cu and Mg doping on the structural characteristic of LiNi0.6Mn0.2Co0.2O2 (NMC622)","authors":"Ahmad Jihad, Affiano Akbar Nur Pratama, C. Yudha, M. Rahmawati, H. Widiyandari, A. Purwanto","doi":"10.1145/3429789.3429857","DOIUrl":"https://doi.org/10.1145/3429789.3429857","url":null,"abstract":"LiNi0.6Mn0.2Co0.2O2 or NMC622 is a promising cathode material for Li-ion batteries. In this study, NMC622 was synthesized using batch oxalate co-precipitation followed by high temperature lithiation and sintering. Direct modification of NMC622 was employed via direct solid-state doping of Zn, Cu and Mg atoms at concentration of 0%, 1%, 3%, 5% and 10%. Doping source was obtained via simple and rapid precipitation. The doping was performed during LiOH mixing with NMC precursor. The doping source was pre-characterized using XRD analysis before the doping process. The final doped and un-doped NMC622 was analyzed structurally to study the optimum doping effect based on several structural parameters such as lattice parameters, lattice parameters ratio, cation mixing level, degree of hexagonal ordering and crystallite size.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"155 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":"122859074","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 purpose of this study is to consider the role of industrial engineering in the era of COVID-19. This paper is divided into three parts. Firstly, the history of industrial engineering are reviewed to confirm the richness and compensation of life brought by the division of labor. Second part describes the exchange that should be paired with the division of labor, and what it is like to be, and then explain that the integration of division of labor and its exchange is the future issue for humanity. Third part, regarding the touch strategy that is the first step of exchange, reviews the concept of visual management, which is a precedent case, and try to systematize the three touch strategies that people tried in the early stages of the spread of COVID-19 in Japan. The results obtained from this survey argue that it is important for industrial engineering, which has been trying to understand management resources from various perspectives, to engage not only in the division of labor, but also in their exchange. Also, in an era where environmental destruction and digitalization are progressing at a speed that humanity does not notice, the findings can be considered as a problem in order to create human resources people whose value is higher than ever.
{"title":"On the Role of Industrial Engineering in the COVID-19 Era","authors":"Koichi Murata","doi":"10.1145/3429789.3429798","DOIUrl":"https://doi.org/10.1145/3429789.3429798","url":null,"abstract":"The purpose of this study is to consider the role of industrial engineering in the era of COVID-19. This paper is divided into three parts. Firstly, the history of industrial engineering are reviewed to confirm the richness and compensation of life brought by the division of labor. Second part describes the exchange that should be paired with the division of labor, and what it is like to be, and then explain that the integration of division of labor and its exchange is the future issue for humanity. Third part, regarding the touch strategy that is the first step of exchange, reviews the concept of visual management, which is a precedent case, and try to systematize the three touch strategies that people tried in the early stages of the spread of COVID-19 in Japan. The results obtained from this survey argue that it is important for industrial engineering, which has been trying to understand management resources from various perspectives, to engage not only in the division of labor, but also in their exchange. Also, in an era where environmental destruction and digitalization are progressing at a speed that humanity does not notice, the findings can be considered as a problem in order to create human resources people whose value is higher than ever.","PeriodicalId":416230,"journal":{"name":"Proceedings of the 2021 International Conference on Engineering and Information Technology for Sustainable Industry","volume":"50 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120954188","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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