Indonesian Journal of Physics最新文献_第4页

A Review of Mobile Robot Navigation System for Volcano Monitoring Application 移动机器人导航系统在火山监测中的应用综述

Indonesian Journal of Physics Pub Date : 2021-11-05 DOI: 10.5614/ijp.v32i1.300

M. Evita

引用次数: 0

Comparation of Pressed Powder Pellet and Fused Glass Bead Preparation Techniques for Mayor Elements Analysis of Rock Samples using X-Ray Fluorescence (XRF) 用x射线荧光(XRF)分析岩石样品中主要元素的压制粉末球团和熔融玻璃球制备技术的比较

Indonesian Journal of Physics Pub Date : 2020-09-23 DOI: 10.5614/itb.ijp.2020.31.2.4

A. Rohiman, Agus Saiful Arifin

{"title":"Comparation of Pressed Powder Pellet and Fused Glass Bead Preparation Techniques for Mayor Elements Analysis of Rock Samples using X-Ray Fluorescence (XRF)","authors":"A. Rohiman, Agus Saiful Arifin","doi":"10.5614/itb.ijp.2020.31.2.4","DOIUrl":"https://doi.org/10.5614/itb.ijp.2020.31.2.4","url":null,"abstract":"The composition of chemical elements in rock samples can be used as a tool for classifying rock types, predicting the depositional environment, rock age, and the tectonic environment in which the rock is formed. X-Ray Fluorescence (XRF) is one of the instruments used to analyze rock samples. The advantage of using XRF analysis is that the analysis process can be done more quickly, easily, accurately, and does not damage the sample. However, before measurements are made using the XRF instrument it needs to be supported by an appropriate sample preparation process. In this study, optimal conditions in the standard (CRM) rock sample preparation of GBW 07105 and JR-1 have been studied. The parameters studied were variations in the composition ratio of Cellulose Mycro Crystalin (CMC) with standard (CRM) samples, namely 1: 4 and 1: 3. The technique of mixing the sample is done by using a mortar grinder and a shaker. Optimization of sample preparation was carried out using pressed powder pellet and fused glass bead techniques. Based on the data obtained from the analysis results the best ratio of binders to standard samples is 1: 3. The pressed powder pellet preparation technique is the best technique in analyzing samples using the X-Ray Fluorescence method. Further studies also need to be carried out to analyze minor elements and traces (REEs).","PeriodicalId":13535,"journal":{"name":"Indonesian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85990800","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}

引用次数: 2

Performance Evaluation of Ceramic Filters for Raw Water Treatment 原水处理陶瓷过滤器的性能评价

Indonesian Journal of Physics Pub Date : 2020-09-02 DOI: 10.5614/itb.ijp.2020.31.2.2

Fahriza Fawwas Asrory, A. Prasetya, W. Wilopo

{"title":"Performance Evaluation of Ceramic Filters for Raw Water Treatment","authors":"Fahriza Fawwas Asrory, A. Prasetya, W. Wilopo","doi":"10.5614/itb.ijp.2020.31.2.2","DOIUrl":"https://doi.org/10.5614/itb.ijp.2020.31.2.2","url":null,"abstract":"The drought that engulfs Gunungkidul every year forces some residents to use surface water resources in the lake or water sources in the cave even though the quality has not been tested. The application of ceramic filter technology as a household-scale water purification tool is a form of preventing further water contamination and reduces the level of the disease occurs due to the influence of biological and chemical contamination contained in water. This study aims to make ceramic filters and evaluate the performance of these filters by testing four parameters namely turbidity, hardness, E.coli, and Total Coliform. This study uses three filters, namely Pelita Indonesia (F1) production filter as a comparison filter, Kasongan Yogyakarta production filter with a composition of 80% (clay and sand) with a ratio of 1:1 and 20% wood sawdust with the addition of Silver Nitrate (AgNO3) ( F2), and Kasongan production filter with a composition of 100% clay mixed with sand without the addition of sawdust and Silver Nitrate (AgNO3) (F3). Sampling was carried out 15 times for 15 days by testing the water before and after going through the filtration process. The percentage reduction in the average for the turbidity parameter, (F1) was 38.24%, (F2) was 34.16%, and (F3) was 37.18%. The hardness parameter, (F1) is 22.22%, (F2) is 11.24%, and (F3) is 10.93%. The parameters of E.coli, (F1) are 100%, (F2) are 98.66%, and the filter with the composition of clay, sand (F3) is 46.71%. The Total Coliform (F1) parameter was 87.62%, (F2) was 69.38%, and (F3) was 51.32%. The application of ceramic filters can be done by looking at the ability of the filter to reduce the contamination contained in water. The addition of silver nitrate (AgNO3) must be done to reduce microbiological contamination.","PeriodicalId":13535,"journal":{"name":"Indonesian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74635930","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}

引用次数: 0

Surface Deformation Monitoring Using Time-lapse Microgravity Method in Central and East Lombok Regencies 龙目岛中部和东部地区地表变形时移微重力法监测

Indonesian Journal of Physics Pub Date : 2020-08-19 DOI: 10.5614/itb.ijp.2020.31.2.3

S. Minardi, T. Ardianto, A. T. Alaydrus

{"title":"Surface Deformation Monitoring Using Time-lapse Microgravity Method in Central and East Lombok Regencies","authors":"S. Minardi, T. Ardianto, A. T. Alaydrus","doi":"10.5614/itb.ijp.2020.31.2.3","DOIUrl":"https://doi.org/10.5614/itb.ijp.2020.31.2.3","url":null,"abstract":"Surface deformation is a natural occurrence on the surface of the earth. The deformation can be in the form of subsidence or uplifting of the land surface. In this research, an time-lapse microgravity method will be applied to monitor surface deformation that occurs in Central Lombok and East Lombok Districts. The method of time-lapse microgravity is repetitive gravity measurement at the same point with a certain time interval, the measured magnitude is a change in the value of the acceleration of gravity and the microGal scale. Measurements were made in August 2016, April 2018, and June 2019. The measured value of the change in gravitational acceleration is the superposition of the changes caused by subsurface and surface sources. Separation of the two values is carried out using striping filter, which takes into account the ratio of density, thickness, and depth of the surface and subsurface layers. Land subsidence occurred during the period August 2016 to April 2018 and land uplifting occurred during the April 2018 to June 2019 period. This land subsidence occurred due to natural compacting and minor tectonic activity (small earthquakes that were not felt) while land uplifting was occurred due to major tectonic activities, in the form of the Lombok Earthquake in July to September 2018.","PeriodicalId":13535,"journal":{"name":"Indonesian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77967032","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}

引用次数: 0

Face Detection Based On Eye-Mouth Triangular Approach 基于眼-口三角方法的人脸检测

Indonesian Journal of Physics Pub Date : 2020-08-11 DOI: 10.5614/itb.ijp.2020.31.2.1

Deni Kartika, S. Suprijadi

引用次数: 0

Three-dimensional (X-Y-Z) Core Design of Long-Life Pressurized Water Reactor Using (Th-U)O2 Fuels with The Addition of Gd2O3 and Pa-231 as Burnable Poisons 添加Gd2O3和Pa-231作为可燃毒物的(Th-U)O2燃料长寿命压水堆三维(X-Y-Z)堆芯设计

Indonesian Journal of Physics Pub Date : 2020-06-05 DOI: 10.5614/itb.ijp.2021.31.1.3

D. Hariyanto, S. Permana

{"title":"Three-dimensional (X-Y-Z) Core Design of Long-Life Pressurized Water Reactor Using (Th-U)O2 Fuels with The Addition of Gd2O3 and Pa-231 as Burnable Poisons","authors":"D. Hariyanto, S. Permana","doi":"10.5614/itb.ijp.2021.31.1.3","DOIUrl":"https://doi.org/10.5614/itb.ijp.2021.31.1.3","url":null,"abstract":"Pressurized water reactors (PWRs) are one of the most dominant types of nuclear power plants that have been operated commercially to produce electricity in the world. The purpose of this study was to perceive a three-dimensional (X-Y-Z) core design of long-life PWR using Thorium-Uranium dioxide ((Th-U)O2) fuels with the addition of Gadolinium (Gd2O3) and Protactinium-231 (Pa-231) as the burnable poisons. A combination of Thorium and enriched Uranium fuels have a higher conversion ratio than other fuels, therefore can guarantee the reactor to operate longer. The burnable poison isotopes could be used to reduce excess reactivity due to the very high thermal neutron absorption cross-section. For core geometry analysis, a three-dimensional (X-Y-Z) geometry and a fuel volume fraction of 40% were applied. The computer code of SRAC 2006 from the Japan Atomic Energy Agency (JAEA) and the JENDL 4.0 as a nuclear data library were used for calculation. In this study, different fractions of Uranium dioxide, Uranium-235, Gadolinium, and Protactinium-231 in fuel were carried out. The result of this study was a three-dimensional core design of 800 MWt PWR using 60% Uranium dioxide fuel with enriched Uranium-235 of 12%-11% and the addition of 0,025% Gd2O3 and 1,0% Pa-231 which could operate for ten years without refueling. This research is expected to be a reference for long-life PWR design using the Thorium and Uranium fuel cycles.","PeriodicalId":13535,"journal":{"name":"Indonesian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76365122","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}

引用次数: 0

Faddeev-Popov Ghost and BRST Symmetry in Yang-Mills Theory 杨-米尔斯理论中的Faddeev-Popov鬼影和BRST对称性

Indonesian Journal of Physics Pub Date : 2020-02-11 DOI: 10.5614/itb.ijp.2021.31.1.5

Edyharto Yanuwar, J. Kosasih

引用次数: 0

Neutronic Analysis of Small Long-Life Pressurized Water Reactor Using (Th-U)O2 Fuels with Gd2O3 and Pa-231 as Burnable Poisons 以Gd2O3和Pa-231为可燃毒物的(Th-U)O2燃料的小型长寿命压水堆中子分析

Indonesian Journal of Physics Pub Date : 2020-02-03 DOI: 10.5614/itb.ijp.2021.31.1.2

D. Hariyanto, N. Yuningsih, S. Permana

{"title":"Neutronic Analysis of Small Long-Life Pressurized Water Reactor Using (Th-U)O2 Fuels with Gd2O3 and Pa-231 as Burnable Poisons","authors":"D. Hariyanto, N. Yuningsih, S. Permana","doi":"10.5614/itb.ijp.2021.31.1.2","DOIUrl":"https://doi.org/10.5614/itb.ijp.2021.31.1.2","url":null,"abstract":"The requirement for electricity increases with the growth of the human population. The existing power plants have not been able to fulfill all electricity requirements, especially in remote areas. The small long-life pressurized water reactor (PWR) is one of the solutions and innovations in nuclear technology that can produce electrical energy for a long time without refueling. This study aimed to analyze the neutronic of small long-life PWR that using Thorium-Uranium dioxide ((Th-U)O2) fuels with enriched Uranium-235 (U-235) and the addition of Gadolinium (Gd2O3) and Protactinium-231 (Pa-231) as the burnable poisons. The SRAC Code with the JENDL-4.0 nuclear data library had been used for the calculation method. In this study, the geometry of the two-dimensional (R-Z) reactor core with different fuel volume fraction was analyzed. Moreover, variations of the Uranium-235, Gadolinium, and Protactinium-231 fractions in the fuels were carried out. The result in this study was a PWR 420 MWt design using 60% Uranium dioxide fuel with enriched Uranium-235 of 10%-11%-12% and the addition of 0,0125% Gadolinium and 1,0% Protactinium-231 as the burnable poisons that could operate for thirteen years without refueling. The small long-life PWR design could produce a power density of 85,1 watts/cc with the reactivity for less than 4,6% dk/k.","PeriodicalId":13535,"journal":{"name":"Indonesian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91407146","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}

引用次数: 0

Measurement of Oxygen Concentration in Static and Flowing Liquid Pb-Bi by Using Zirconia Based Sensor 用氧化锆基传感器测量静态和流动液态铅铋中的氧浓度

Indonesian Journal of Physics Pub Date : 2020-01-21 DOI: 10.5614/itb.ijp.2021.31.1.1

P. Adhi, Dianta Mustofa Kamal, M. Muslimin, Andrei Vilcu, M. Kondo, Minoru Takahashi

{"title":"Measurement of Oxygen Concentration in Static and Flowing Liquid Pb-Bi by Using Zirconia Based Sensor","authors":"P. Adhi, Dianta Mustofa Kamal, M. Muslimin, Andrei Vilcu, M. Kondo, Minoru Takahashi","doi":"10.5614/itb.ijp.2021.31.1.1","DOIUrl":"https://doi.org/10.5614/itb.ijp.2021.31.1.1","url":null,"abstract":"Liquid Lead-Bismuth Eutectic (LBE) has been proposed as one of the coolant for the Generation IV nuclear reactor. However, the oxygen should be controlled adequately to suppress the corrosion rate of the LBE. A device called oxygen sensor made of zirconia as solid electrolyte has been used to monitor the oxygen concentration online in order to control the oxygen concentration. The principle of this sensor is based on electrochemistry method where the difference oxygen activitiy between reference electrode (RE) and working electrode (in liquid LBE) can make potential difference. The potential difference is measured by electrometer and can be converted into oxygen concentration based on Nernst equation. Iron (Fe)/Magnetite (Fe3O4) was used as material for RE in this study. Measurement of oxygen concentration was conducted at 450 - 600°C for the static condition of LBE and around 390°C for the dynamic condition of flowing LBE. The oxygen concentration for both two experiment conditions were set in oxygen saturated condition of Pb-Bi. The oxygen sensor based on zirconia solid electrolyte with Fe/Fe3O4 as RE can measured the oxygen concentration in liquid LBE. The results showed that the measurement was agreed with the Nernst equation theoretical calculation.","PeriodicalId":13535,"journal":{"name":"Indonesian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82434160","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}

引用次数: 1

Detection Of Sliding Plane as A Disaster Mitigation Efforts In The Pengembur Village, Pujut Sub District, Central Lombok Regency 在龙目岛中部Pujut街道Pengembur村检测滑动平面作为减灾工作

Indonesian Journal of Physics Pub Date : 2020-01-21 DOI: 10.5614/itb.ijp.2021.31.1.4

B. U. P. Elinda, Hotinul Al Fatari, M. Marzuki, Bakti Sukrisna, A. T. Alaydrus, S. Minardi

引用次数: 0