2018 4th International Conference on Science and Technology (ICST)最新文献

{"title":"Combination of Gravity Disturbances and Gravity Anomalies for Geoid Determination: A Case Study in Semarang City, Central Java, Indonesia","authors":"L. M. Sabri, T. A. Sunantyo, L. Heliani, N. Widjajanti","doi":"10.1109/ICSTC.2018.8528646","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528646","url":null,"abstract":"Conversion of geodetic height to orthometric height requires geoid to transform geometric elevation above ellipsoid into physical elevation above mean sea level. The need of accurate geoid is increasing as many leveling benchmarks have lost and deformed due to city development and natural activities. This paper presents geoid determination based on combination of gravity disturbances data and gravity anomalies data. Gravity disturbances were computed from 185 terrestrial gravity data. Gravity data were measured on March 2016 using Scintrex CG-5 gravimeter. All gravity stations coordinates were measured using rapid static method of GNSS to achieve sub-meter accuracy. Gravity anomalies data for improving the accuracy of the geoid models were measured by some government and private agencies using analogue gravimeters. It consisted of 10,149 data and covered whole Java island which was not less than 2 arc degree of latitude by 10 arc degree of longitude. Gravity disturbances of the city represented local gravity data, gravity anomalies of Java island represented regional data, while EGM2008 represented global gravity data. Gravity anomalies Java were converted to gravity disturbances data using geoid undulation of EGM2008 by simple free air reduction. The converted data were then shifted to local gravity data system. Gravimetric geoid were computed using Remove-Compute-Restore scheme and integral of Hotine based on combination of local and regional data. Gravimetric geoid was validated on 30 geometric geoid points measured by static method of GNSS and leveling. These validation points were distributed along 51 km of leveling line. Accuracy test showed that average deviation of gravimetric geoid to geometric geoid was -0.773 m while standard deviation of geoid was $pmb{pm 0.042} mathbf{m}$. Conclusion of this research was that combination of gravity disturbances data and gravity anomalies data could achieve centimeter level accuracy. For future research, it was recommended to apply stochastic weighting to combine local and regional gravity data.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126390784","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":"Spatial Habitat Suitability Modeling of the Roti Snake-Necked Turtle (Chelodina Mccordi) Based on Landsat-8 Imagery and GIS","authors":"Kurnia Latifiana, Hartono, P. Danoedoro, M. As-singkily, A. Cahyana","doi":"10.1109/ICSTC.2018.8528282","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528282","url":null,"abstract":"Landsat imagery can be used to establish spatial habitat suitability modeling for prediction habitat quality and evaluation potential habitat. However, the imagery has to limit information for specific habitat characteristics such as turtles' habitat. Chelodina mccordi is an endemic turtle from Roti Island but many previous studies have been done either biological or non-spatial studies. This study uses Landsat-8 OLI and TIRS as actual data and support with Landsat-5 TM as historical data, through a Geographic Information System (GIS). This study aims to create a spatial habitat suitability map model of C. mccordi and its mapping accuracy. The method that is used for modeling is overlaying indicative parameter maps use of logistic regression to presents the habitat suitability index (HSI). There are nine parameters used for modeling in this study, i.e. normalized difference water index (NDWI), land surface temperature (LST), slope, the topographic wetness index (TWI), distance from high canopy density, distance from settlement and agriculture, distance from freshwater, distance from the sea or salty, and distance from the street. We found three parameters that have strong contribution i.e. the NDWI, the LST, and the TWI. The result of spatial habitat suitability model of C. mccordi based on Landsat-8 OLI/TIRS and GIS analysis presents the value of mapping accuracy is about 75%.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116679093","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":"Design of Fuzzy Simulation for Determining the Duration of Traffic Light Based on Vehicle Density Level and Carbon Monoxide Level","authors":"Akhsin Nurlayli, Febrianto Alqodri, Intan Sulistyaningrum Sakkinah","doi":"10.1109/ICSTC.2018.8528671","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528671","url":null,"abstract":"The increasing number of vehicles in Malang was proven by data from INRIX survey, a survey institute in the United States established since 2004, the data in 2017 have shown that Malang is the fourth city with the highest traffic congestion rate in Asia. Since the traffic congestion has some adverse effects on the environment, e.g. increased levels of Carbon Monoxide (CO). In this paper, we propose a mechanism design for handling the congestion effects that adversely affect the drivers and the environments. Fuzzy logic as a method which is used to determine the levels of the congestion, CO, and green light duration of traffic light based on certain classification in order to get an optimal decision for the duration of the traffic light. The simulation design has been validated by experts from Department of Transportation (DISHUB) Malang City, the results show that the simulation design is valid and worthy to be implemented for determining the duration of the traffic light.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131156165","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":"Regression Analysis for Estimated Distance in Fingerprinting-Based WLAN Outdoor Localization System","authors":"Sutiyo, Risanuri Hidayat, Sunarno, I. Mustika","doi":"10.1109/ICSTC.2018.8528593","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528593","url":null,"abstract":"Wireless local area network (WLAN) localization techniques are evolving in line with technological developments and the number of wireless device users. The existing localization techniques have several methods, with varying degrees of accuracy, and are generally applied to indoors. The targets sought in existing localization techniques find positions of user's mobile device. In this paper describes the regression analysis method for fingerprinting-based WLAN outdoor localization system. The position being searched is the location of the access point, rather than the user's mobile device like any other localization research. With a signal fingerprinting system, the empirical data obtained from field measurements are stored in the database. The database consists of a DataPoint table, which includes received signal strength by the finder (RSSfnd) and the distance between the finder against the access point (Dreal). Measurements were made at a range of 0 to 100 meters and divided into eleven measurement points. Regression models used for analysis are linear regression, exponential regression, and polynomial regression. Based on the regression line and the value of $mathbf{R}^{2}$ can conclude the most precise regression technique to estimate the distance between the finder against the target of an access point. Linear regression yields $mathbf{R}^{2}$ value of 0.8133, exponential regression of 0.8641, and polynomial regression of $mathbf{R}^{2}$ value of 0.9951. Based on the amount of $mathbf{R}^{2}$ obtained, the polynomial regression is the most precise regression model compared to other regression models. The system in this paper offers a more effective and efficient method of WLAN outdoor localization, only one measurement of received signal strength (RSS) has been able to estimate the distance between the finder against the target of an access point. The system in this paper does not require an anchor or reference node when estimating distances as needed in other research.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127731742","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":"E-archives Implementation Readiness: A Case of the National Archives of the Republic of Indonesia","authors":"Parno Nusantara, B. Nazief, P. Sandhyaduhita, Haemiwan Z. Fathony","doi":"10.1109/ICSTC.2018.8528715","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528715","url":null,"abstract":"The implementation of e-archives or e-records systems in public agency is prone to failures and rejections, a similar situation faced by many e-government initiatives. The measurement of readiness level is considered as a necessary step to minimize the implementation failures and users' rejection. This research aims to measure the readiness level of e-archives implementation in Indonesia's National Archives (Arsip Nasional Republik Indonesia) and develop the corresponding recommendations to overcome it. The scope of research is the static archives, both digital-born and digital reborn e-archives. The measurement adopts e-archives readiness measurement frameworks from the International Records Management Trust (IRMT). The adoption was conducted by contextualizing it in the Indonesian context. It is a qualitative research with data collection via series of interviews, desk studies, and researcher's observations. The qualitative data were categorized and analyzed into the set of themes that are related to the level of e-archives implementation readiness. The research finding shows that the readiness level is relatively low, indicating the unreadiness of the National Archives to implement the e-archives initiative. The research then employs Analytical Hierarchy Process (AHP) to develop the recommendations to improve the e-archives readiness at Indonesia's National Archives).","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128107454","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":"Evaluating Energy Consumption in a Different Virtualization within a Cloud System","authors":"I. M. Murwantara, P. Yugopuspito","doi":"10.1109/ICSTC.2018.8528695","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528695","url":null,"abstract":"Cloud computing manages the isolation of processes within Virtual Machines by utilizing resources via hypervisor. In the last decade, specific application such as Big Data that mostly run in the Virtualized environment has attracted many Cloud providers. This opportunity has increased the growth of alternative technology such as Docker and Kubernete that made enhancement on top of a single host virtualization. However, diverse virtualization technology may have different characteristics, which may also affect the consumption of energy. This work provides information on the impact of workload into Cloud computing services by measuring the energy usage of three different virtualization technologies namely Virtual Machine, Docker and Kubernete in an Openstack system, Opensource Cloud computing environment. In order to trigger processes in the system under measurement, we use a workload technique that simulates incoming users to the system. A method of energy measurement without physical powermeter for several Virtualized systems is reported. Our experiment result shows that using similar workloads, for different virtualization technology, consumes a significant distinctive amount of energy.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132551850","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":"Investigation of the Reliability of CF3CHC12+ N2 Gas Mixture as a Potential Substitute for SF6","authors":"Tedy Juliandhy, T. Haryono, Suharyanto, I. Perdana","doi":"10.1109/ICSTC.2018.8528688","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528688","url":null,"abstract":"The presence of Sulphur Hexafluoride (SF6) as a gas insulation in Gas Insulated Switchgear (GIS) equipment is essential because of the reliability of SF6gas in sustaining the electrical power system while transmitting power from the power plant through a substation. Utilization of SF6gas as a gas insulation medium in high equipment especially in Gas Insulated Switchgear is contrary to the policy issued at Kyoto Convention which is famous for the Kyoto Protocol. Under the Kyoto Protocol, SF6gas usage requires immediate limitation and reduced use as it causes The presence of Sulphur hexafluoride as a gas insulation in Gas Insulated Switchgear equipment is essential because of the reliability of SF6gas in sustaining the electrical power system while transmitting power from the power plant through a substation. Utilization of SF6gas as a gas insulation medium in high equipment especially in Gas Insulated Switchgear is contrary to the policy issued at Kyoto Convention which is famous for the Kyoto Protocol. Under the Kyoto Protocol, gas usage requires immediate limitation and reduced use as it causes environmental damage. Effects of use arising from the SF6gas are high acid rain from the S (Sulphur) element released in the air and the depletion of the ozone layer due to the release of F (Fluor) in the air causes the binding of oxygen in the air so that ozone formation in the atmosphere is inhibited. An investigation of alternative gas alternative to SF6Gas is CF3CHC12gas mixed with nitrogen gas. The purpose of mixing the gas to reduce the CF3CHC12gas concentration in the air. Our research shows a mixture of CF3CHC12+ N2 with a ratio of 90%, 80% and 70% is valued of reliability against breakdown voltage with a value of 167.8-215 kV. This mixed gas capability has a strong electrical value of 1,075 times that of the SF6gas capability which has an insulating capability of 90 kV tensions. For a better breakdown voltage capability of SF6gas and the ability to extinguish the flame, CF3CHC12+ N2 gas suitable is recommended for use as an alternative gas application for SF6gas substitutes on high voltage equipment as reliable gas insulation","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133278067","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":"Optimal Fractional-Order PID for DC Motor: Comparison Study","authors":"S. A. Gunawan, Yohannes Chrysostomos Hendro Yuwono, Gilang Nugraha Putu Pratama, A. Cahyadi, Bondhan Winduratna","doi":"10.1109/ICSTC.2018.8528704","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528704","url":null,"abstract":"This paper presents a comparative study of optimization methods for fractional-order Proportional-Integral-Derivative (FOPID) controller. Those methods are Nelder-Mead, Particle Swarm Optimization (PSO), and genetic algorithm. The FOPID controller needs to regulate the step response of the DC motor at the desired state. Numerical simulation and analysis are presented to verify the best method. The PSO gives the best result in term of settling time, robustness, and less overshoot.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115569567","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":"Dropout Detection Using Non-Academic Data","authors":"Tio Dharmawan, Hari Ginardi, A. Munif","doi":"10.1109/ICSTC.2018.8528619","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528619","url":null,"abstract":"The common problem in the university is the high dropout rate. The high dropout rate will have a bad impact on the university. Various studies have tried to determine the factors that influence the dropout. Almost all research focuses on academic factors of students as a determinant of potential dropouts. However, there are sometimes cases of dropout students who cannot be determined using academic factors. This raises the hypothesis that the potential dropout students can be determined from non-academic factors. There are 5 non-academic factors criteria that can be used as determinants of dropout, demography, social interaction, finance, motivation, and personal. These criteria give rise to 37 factors that are considered influential in determining the potential dropout. The factors processed into three phases are collecting data, preprocessing data, and modelling. The factor that are independent to other factors are the number of family, the interest in the future study, and the relationship with the lecturer. Based on the result of correlation test there are two factors had correlation, so the modelling done with two combination factors. The best model is using combination of factor the number of family and the relationship with the lecturer using Decision Tree with split criterion is Maximum Deviance Reduction and maximum split is 2 with time for training is 1.7386 seconds.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114393860","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":"A Conceptual Model for Information Security Risk Considering Business Process Perspective","authors":"Eva Hariyanti, A. Djunaidy, D. Siahaan","doi":"10.1109/ICSTC.2018.8528678","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528678","url":null,"abstract":"Information security risk assessment (ISRA) and modeling has become a prominent topic in the last decade. ISRA methods have been developed by many researchers, showing that this issue is always on the lookout for review. Business process is a new perspective in ISRA domain. In this perspective, risk assessment is based on business processes rather than organization's assets. This research is aimed to conduct a systematic review of the ISRA model developed in recent years. Research papers from 2010 to 2017 were selected and examined in the context of information security risk assessment, modeling, and its relationship with business process management. In addition to the current taxonomy, new aspects were added to analyze these papers, i.e. risk context, adaptive ability, and model purpose. Based on analysis results, two research gaps in information security risk modeling were found. First, risk model should have comprehensive assessment method that considers vulnerability propagation and resource valuation in different resources level. Second, risk model should also be able to adapt to business process changes. In this paper, research challenges faced with respect to such issues are outlined and a new conceptual model for ISRA is proposed.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"306 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123206446","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}