PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)最新文献

{"title":"Comparison of entry age normal and projected unit credit method for funding of defined benefit pension plan","authors":"A. Angkasa, Dwi Wahyu Puji Lestari, S. Devila","doi":"10.1063/5.0059248","DOIUrl":"https://doi.org/10.1063/5.0059248","url":null,"abstract":"In this modern age, the quality of life of a person is always improving. This leads to longer lifespans, hence resulting in a longer pension period for that individual. Pension programs are therefore needed more than ever so that a person can receive a benefit after they retire and maintain the same quality of life they had before they retired. The topic of this paper is comparing the entry age normal and projected unit credit method for funding of a defined benefit pension plan. The entry age normal method uses the concept of projecting the benefit that will be earned at the end of an employee’s career. The projected unit credit method uses the concept of benefits accrued to the date of normal cost determination. From the data simulation it can be concluded that the projected unit credit method results in a smaller normal cost compared to the entry age normal method and the projected unit credit method results in a greater actuarial liability compared to the entry age normal method.","PeriodicalId":20561,"journal":{"name":"PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81741411","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}

{"title":"Physicochemical properties and digestibility of modified tapioca starch, a double modification with heat moisture treatment and crosslinking","authors":"T. Hawari, N. M. Nizardo, E. Saefudin","doi":"10.1063/5.0060859","DOIUrl":"https://doi.org/10.1063/5.0060859","url":null,"abstract":"Starch is a common resource of glucose for humans. Some diseases like diabetes and obesity are related to how high level of glucose in the blood. Starch modification is conducted to gain control over glucose in the blood to reduce the risk of the diseases. This study was successful in modifying tapioca starch with heat moisture treatment (HMT) and crosslinking with citric acid. The objective of this study was to investigate the changes that happen after the modification. HMT was conducted by varying treatment times and crosslinking was done by varying concentrations of citric acid used. HMT will induce rearrangement on starch crystal structure and could be identified with a microscope showed as a hole on the granule while crosslinking will generate new covalent bonds on the starch chain and could be identified with FTIR at 1720 cm−1 area. The results of alteration showed a decrease in swelling power and solubility, a decrease in paste clarity, an increase in paste viscosity, and an increase in thermal resistance. The digestibility of starch showed a significant decrease in dual treated starch. The dual treatment were on synergy to alter the physicochemical properties.","PeriodicalId":20561,"journal":{"name":"PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91271120","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}

{"title":"Evaluation of the estimation of indoor radon influence on lung cancer mortality","authors":"A. C. Syuryavin","doi":"10.1063/5.0058907","DOIUrl":"https://doi.org/10.1063/5.0058907","url":null,"abstract":"The influence of indoor radon on lung cancer risk has been confirmed and estimated by many researchers. The fact that indoor radon exposure is higher than outdoor radon has increased people’s concern on radon since most people’s time was spent indoors. Through epidemiological study, UNSCEAR, BEIR, and ICRP have estimated the significance of radon exposure influence to lung cancer mortality. The estimation is established in the form of a fatal risk constant. Even though the risk constant has been verified through epidemiological studies, the applicability of the prediction constant should be evaluated by comparing it with a real case. In this study, the fatality number caused by indoor radon from many countries was estimated and calculated using the risk constant established by UNSCEAR, BEIR, and ICRP and then evaluated with real cases issued by World Health Organization (WHO). The evaluation result showed that the lung cancer fatality estimation associated to indoor radon using fatal risk constants has good applicability in most of the countries, evaluated by WHO real case data. However, few countries showed different results compared to the real cases, which may be caused by the social-economic factor of the countries in smoking habit and health facility difference.","PeriodicalId":20561,"journal":{"name":"PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81037677","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}

{"title":"Analysis of neutronic parameters for typical TRIGA core configuration scenarios","authors":"H. Amar, Y. Pramono, B. Aji","doi":"10.1063/5.0058885","DOIUrl":"https://doi.org/10.1063/5.0058885","url":null,"abstract":"Typical TRIGA neutronic parameters calculation has been performed using SRAC 2006 with 3 dimensions modeling. Calculation of the criticality and power distribution with the SRAC2006 computer program is carried out in 2 stages. The first step is carried out by calculating the criticality of each fuel element and control rod using the PIJ module. Then, the second is the 3-dimensional core criticality calculation with the CITATION module. There are three core configuration scenarios calculated in this study. Calculated neutronic parameters are multiplication factor (K-Eff), radial and axial power peaking factor (PPF), radial and axial neutron distribution, and reactor core power density. The objective of this study is to conduct a safety analysis of the TRIGA reactor core configuration scenarios. The calculation results of the multiplication factor for reactor core configuration scenarios 1, 2, and 3 are 1.02996, 1.02761, and 1.02776. And the radial power peaking factors are 1.64, 1.68, and 1.89. Whereas, for axial Power Peaking Factor, it is still within the operating limits and conditions value range of 1.2. For the radial PPF, it can be concluded that the core configuration scenario 1 and scenario 2 can be considered as the safe core configuration because their radial PPF values are close to the operating limit and condition for this typical TRIGA reactor. The reactor core configuration scenario 3 has radial Power Peaking Factor values that exceeds operating limits and conditions for the TRIGA reactor so this scenario cannot be used to operate the reactor. The closer the radial PPF to the operating limit and condition value, the safer the reactor core configuration.","PeriodicalId":20561,"journal":{"name":"PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)","volume":"132 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76715161","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}

{"title":"Hierarchical credibility model","authors":"F. Namora, S. Nurrohmah, I. Fithriani","doi":"10.1063/5.0059047","DOIUrl":"https://doi.org/10.1063/5.0059047","url":null,"abstract":"The hierarchical credibility model is a model that can accommodate more than one risk factor. This model can better describe the condition of a complex insurance data. Hypothetical mean is used as a quantity to be used for a benchmark of premium calculation. The process of estimating value of hypothetical mean can be done by using the orthogonal projection on one of Hilbert spaces that contains a linear combination of past observations. The estimation of hypothetical mean is a function of structural parameters of the model, which are estimated directly from the data. If the estimation of structural parameters that defines the variance on the upper levels of the hierarchical structure is zero, then that next structural parameters can still be counted with the limit. The methods that can be used to estimate these structural parameters are the Ohlsson method and Buhlmann-Gisler method. In this research, the estimation of hypothetical mean using the hierarchical credibility model and the Buhlmann-Straub model are compared. The result is there is a difference between the usage of both methods when applied on the hierarchical credibility model compared to the Buhlmann-Straub model and the estimation with the hierarchical credibility model defines the situation more realistically.","PeriodicalId":20561,"journal":{"name":"PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85640209","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}

{"title":"What if the Batan Indah case had never been found?: A hypothetical modeling for dose estimation using the RESRAD Onsite","authors":"N. Nurhadiansyah","doi":"10.1063/5.0059159","DOIUrl":"https://doi.org/10.1063/5.0059159","url":null,"abstract":"The discovery of radioactive material (uncontrolled radioactive source) occurs in various countries. In January 2020, radioactive sources of Cs-137 has been found in Batan Indah residential area which is less than 5 km from Nuclear Serpong Area. Environmental impact assessment is required to estimate the Total Effective Dose Equivalent (TEDE) received by the public in the contaminated area. The Total Effective Dose Equivalent is the sum of the effective dose equivalent from external radiation plus the committed effective dose equivalent from internal radiation. In this paper, hypothetical modeling using RESRAD Onsite is performed to calculate the estimation of Total Effective Dose Equivalent and significant contribution pathway to the Total Effective Dose Equivalent. A significant contribution to the Total Effective Dose Equivalent comes from the external dose.","PeriodicalId":20561,"journal":{"name":"PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78067589","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}

{"title":"Exponential Conway Maxwell Poisson distribution","authors":"A. Adzkiah, D. Lestari, L. Safitri","doi":"10.1063/5.0059254","DOIUrl":"https://doi.org/10.1063/5.0059254","url":null,"abstract":"The study of the lifetime of an organism, devices, etc., is very important in the field of health, biology, and industry. We need a distribution that can model the data with certain characteristics. The lifetime distribution with a decreasing hazard rate has been discussed in the new literature. In this research, a new distribution with a decreasing hazard rate is presented with three parameters that match real data that has no zero observation, namely the Exponential Conway Maxwell Poisson distribution (ECOMP). The ECOMP distribution can be used to model the minimum lifetime of an exponential random variable. In this research, we explain how to construct ECOMP distribution and discuss its properties. The parameter estimation is performed using the maximum likelihood method. The application of earthquake data shows that the ECOMP distribution is more suitable in modeling data than the Exponential Poisson (EP) distribution.","PeriodicalId":20561,"journal":{"name":"PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)","volume":"182 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74966369","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}

{"title":"Seismic hazard disaggregation analysis of West Kalimantan NPP potential site: A precursory study","authors":"Y. Yuliastuti, Y. Indrawati","doi":"10.1063/5.0058872","DOIUrl":"https://doi.org/10.1063/5.0058872","url":null,"abstract":"A precursory study in seismic hazard disaggregation analysis of West Kalimantan NPP (Nuclear Power Plant) potential site has been performed. Based on the previous study, Bengkayang regency in West Kalimantan Province has been chosen as one of the potential NPP sites. Although the area is regarded as a low seismicity region, seismic hazard analysis remains an obligatory task to be performed based on BAPETEN’s Chairman Regulation No. 8 of 2013 [1]. The objective of this study is to present preliminary seismic hazard analysis and take a closer detail to disaggregation analysis of the studied area. Disaggregation analysis was conducted at a single point selected site in Bengkayang regency based on secondary geological and seismological regional data using OpenQuake software. The probability of ground motion exceedance corresponds to 10 % in 50 years is set as the seismic hazard level. The seismic source model within the radius of 1,000 km comprises of twenty-one sources is presented here using the combination of zonation and zone-less approach. Probabilistic seismic hazard analysis (PSHA) is performed to estimate the mean hazard spectra and mean probability of ground motion exceedance at any given spectral acceleration at the site. For the chosen location, a peak ground acceleration (PGA) of 0.15 g has resulted. Meanwhile, the disaggregation analysis resulted in a dominant earthquake magnitude of 5.75 Mw and source-to-site rupture distance of 25 and 65 km.","PeriodicalId":20561,"journal":{"name":"PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75405823","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}

{"title":"Review on defenses against common cause failures on digital safety system","authors":"F. Jusuf, A. M. Susanto, A. Waluyo, N. Siwhan","doi":"10.1063/5.0058933","DOIUrl":"https://doi.org/10.1063/5.0058933","url":null,"abstract":"Safety is a main concern in nuclear power plant projects. The instrumentation and control system of nuclear power plant which propose to be built in Indonesia are expected to make extensive use of digital system. Common cause failures are among safety issues in digital technology which may compromise plant safety if occurred. The review includes investigation of available documentation of protection against common cause failures and diversity implementation. This paper describes the characteristics and nature of digital common cause failures. The instrumentation and control system require to be designed with defense against CCFs within and between systems. The result of review is a framework for defense against common causes failures that include: echelons of defense, diversity strategies and assessments of the adequacy of defense.","PeriodicalId":20561,"journal":{"name":"PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73871893","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}

{"title":"Implementation of BAPETEN chairman regulation no. 16 years 2013 for extracting rare earth elements from TENORM materials","authors":"M. Alfiyan","doi":"10.1063/5.0058886","DOIUrl":"https://doi.org/10.1063/5.0058886","url":null,"abstract":"Rare earth metals are elements (REE) of lanthanides metal which are mostly made use in industrial and medical fields. Smelting process of tin or zircon will produce TENORM (Technologically enhanced Naturally Occurring Radioactive Material) materials, such as monazite, zircon, and ilmenite. The TENORM minerals will contain rare earth metals. There are many smelting industries of tin or zircon in Indonesia. Therefore, they show a high potency of rare earth metals in this country. BAPETEN Chairman’s Regulation (BCR) No. 16 Year 2013 (BCR No. 16/2013) [1], concerning Radiation Safety of Storage of TENORM, allows TENORM producers to take out the metal or non-metal minerals in the TENORM materials after they get a technical recommendation from BAPETEN. This paper aims to provide a consideration concerning the criterion to gain a technical recommendation. This paper organized and reviewed BCR No. 16/2013 and compared it to the IAEA (International Atomic Energy Agency) safety standard. Rare earth minerals are always present together with other elements, including radionuclides from U or Th series. REE minerals from Bangka Island contain monazite and xenotime, radioactive elements like Th which detected at 6–7 % in monazite and less than 2 % in xenotime, respectively. While safety report series of IAEA states that content of rare earth ore consists of 5–6 % REEs and 0.04 % Th oxide (or 4.7 % REEs and 0.035 % Th). The TENORM material utilization as regulated on BCR 16/2013 is the same with conditional clearance terminology for radioactive materials. Trivial dose approach that is a conditional clearance can be considered as a technical recommendation criterion. This is because it does not need radiation protection pre-requisites after getting the technical recommendation. The upper level of trivial individual effective dose is equivalent to 100 µSv per year. The dose assessment should consider the exposure pathways to the non-radiation workers (public), specifically those who get involved in external and internal exposure.","PeriodicalId":20561,"journal":{"name":"PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85789806","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}