Buletin FisikaPub Date : 2018-08-01DOI: 10.24843/BF.2018.V19.I02.P05
N. Diaz, K. N. Suarbawa, Adityo Mursitantyo
{"title":"Earthquake Relocation in Northern Bali Island in 2015-2017 using Double Difference Method (DD)","authors":"N. Diaz, K. N. Suarbawa, Adityo Mursitantyo","doi":"10.24843/BF.2018.V19.I02.P05","DOIUrl":"https://doi.org/10.24843/BF.2018.V19.I02.P05","url":null,"abstract":"A research about earthquake relocation in Northern Bali Island in 2015 – 2017 using the Double Difference (DD) method has been carried out. Earthquake relocation is important to get some informations about earthquake locations with high accuracy, fault zone identification, earthquake distribution and seismic analysis. The results of the relocation indicated that there was a displacement of the location of earthquake that formed moving closer to the earthquake source namely a fault. Relocation using HypoDD program gave high accurate result indicated by the RMS residual time value close to zero e.g. 0,000 - 0.01 which mean the results of calculations and observations are closed to the real value.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.24843/BF.2018.V19.I02.P05","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45990178","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}
Buletin FisikaPub Date : 2018-08-01DOI: 10.24843/BF.2018.V19.I02.P02
Ign Agung Dwijaputra, I. M. S. Wibawa, N. Wendri
{"title":"Designing CCTV Working Optimization System as Room Security Using Passive Infrared (PIR) Sensor Based on AT89S52 Microcontroller","authors":"Ign Agung Dwijaputra, I. M. S. Wibawa, N. Wendri","doi":"10.24843/BF.2018.V19.I02.P02","DOIUrl":"https://doi.org/10.24843/BF.2018.V19.I02.P02","url":null,"abstract":"A CCTV optimization system has been designed using PIR (passive infrared) sensor based on AT89S52 microcontroller. This device consists of several series of sensor circuit, AT89S52 microcontroller minimum system, stepper motor driver circuit, push-on circuit and alarm circuit. The working system of the room safety device is when the PIR (passive infrared) sensor detects the movement of the object, then the output of the sensor is forwarded to the microcontroller, the microcontroller will process and convey to the driver circuit to drive the stepper motors that moves the CCTV. The push-on circuit is connected to the microcontroller port for controlling the movement of the stepper motor so it won’t rotate beyond 180 degrees, and for the safety of the room, an alarm circuit is connected to the microcontroller port as an alarming sound generator.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.24843/BF.2018.V19.I02.P02","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47057801","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}
Buletin FisikaPub Date : 2018-07-01DOI: 10.24843/bf.2018.v19.i01.p06
M. Sumadiyasa, I. Manuaba
{"title":"Determining Crystallite Size Using Scherrer Formula, Williamson-Hull Plot, and Particle Size with SEM","authors":"M. Sumadiyasa, I. Manuaba","doi":"10.24843/bf.2018.v19.i01.p06","DOIUrl":"https://doi.org/10.24843/bf.2018.v19.i01.p06","url":null,"abstract":"It has been determined the crystallite size by XRD technique using Scherrer equation and Williamson-Hull Plot method. While the particle size is determined by SEM using Image-J software. For this purpose, synthesized samples of compound Gd0,95La0.05Ba2Cu3O7-d phase. From the calculation results, obtained the crystallite size in nanometers order, however the crystallite size resulting from the Scherrer equations and Scherrer Modified is different, i.e. 63.1675 nm and 67.0005 nm. The results of the crystallite size calculation by the scherrer equation directly and modified differed from that of the Williamson-Hull Plot method (97,3040 nm). Meanwhile, the results of the Williamson-Hull Plot methods and SEM show almost the same value (98.7297nm).","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.24843/bf.2018.v19.i01.p06","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42389538","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}
Buletin FisikaPub Date : 2018-07-01DOI: 10.24843/bf.2018.v19.i01.p07
N. N. Rupiasih, Ni Kadek Gita Hari Yanti, M. Sumadiyasa, I. Manuaba
{"title":"The effect of various disturbances on the seeds on the content of chlorophyll a, chlorophyll b, carotenoids, and biomass of cayenne pepper Seedlings","authors":"N. N. Rupiasih, Ni Kadek Gita Hari Yanti, M. Sumadiyasa, I. Manuaba","doi":"10.24843/bf.2018.v19.i01.p07","DOIUrl":"https://doi.org/10.24843/bf.2018.v19.i01.p07","url":null,"abstract":"Study on the effect of various disturbances on the cayenne pepper seeds (Capsicum Frutescens L.) to the content of chlorophyll a, chlorophyll b, carotenoids, and biomass of the plants in the germination period have been done. The disturbances given include UV-C irradiation for 1 hour (S1), microgravity for 12 hours (S2), for 24 hours (S3), and for 48 hours (S4), as well as combined disturbances that are UV-C irradiation for 1 hour followed by microgravity for 12 hours (S5), for 24 hours (S6), and for 48 hours (S7). As comparison, it has been used seeds without treatment called control (S0). The microgravity environment was created using a 2-D clinostat with a rotational speed of 2.7 rpm (1.2 x 10-4 g). All samples were grown in normal gravity (1 g) environment. Observations were made during the vegetative phase until the plant was 40 days old. Measurements of chlorophyll a, chlorophyll b, carotenoids, and biomass were performed at the plants were 10, 20, and 40 days old. The results showed that disturbances which given on the seeds gave positive effects on the content of chlorophyll a, chlorophyll b, carotenoids, and biomass of the plants. The impacts depend on the duration of the disturbances given.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.24843/bf.2018.v19.i01.p07","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46759190","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}