{"title":"Experimental Study on Fuel Consumption and Energy Efficiency at Soymilk Cooking Using a Mini Boiler and Using a Gas Stove","authors":"U. Hanifah, M. Andrianto","doi":"10.1109/ICSTC.2018.8528681","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528681","url":null,"abstract":"This paper presents a comparison of fuel consumption and energy efficiency at soymilk cooking between using a gas stove and using a mini boiler. The experiment had been done at tofu production line at Subang. We used a tofu cooking stove that can be operated using a gas burner or using steam from a boiler. There were three experiments i.e. cook using a gas stove (A), cook using a gas boiler (B), cook using a wood pellet boiler (C). The highest of specific fuel consumption was based on cooking using a wood pellet mini boiler (0.157 kg fuel/kg tofu production) and the lowest one was cook using a gas boiler (0.047 kg fuel/kg tofu production). The highest of specific energy consumption of the soymilk cooking was cooking using a gas stove (3792 kJ/kg tofu production) and the lowest one was cook using a gas boiler (2076 kJ/kg tofu production). Soymilk cooking using a mini boiler could save the fuel cost and the cooking time compared with soymilk cooking using a gas stove, cooking using a wood pellet mini boiler was the cheapest and fastest one. The highest of energy efficiency was cooking using a gas boiler (59.24%) and the lowest one was cook using a gas stove (33.66%).","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"21 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":"114457331","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 Mental Workload in Human Resource Department","authors":"S. Miranda, S. Indrawati, W. Wulandari","doi":"10.1109/ICSTC.2018.8528658","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528658","url":null,"abstract":"The role of human resources (HR) is an important key in the sustainability of an industry. In order to optimize its human resources utilization, a company needs to measure the workload of its employees so they can perform their tasks properly. In this study, we determine the mental workload of 11 employees in Human Resources Division at a pipe industry, and analyse the indicators affecting the mental workload. NASA-TLX is applied in measuring the workload because it is a measurement technique of workload that has been implemented in various fields and research applications. The results shows that the mental workload of each employee is high but Cleaning Coordinator. Furthermore, Personnel Services Admin is the highest mental workload among others with a score to 79.33. While the lowest is Cleaning Coordinator reaching 30. Mental Demands (MD) is the most significant indicator influencing mental workload up to 780.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"530 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114097137","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":"Electronic Nose Coupled with Chemometrics for Monitoring of Tempeh Fermentation Process","authors":"S. Hidayat, T. R. Nuringtyas, K. Triyana","doi":"10.1109/ICSTC.2018.8528580","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528580","url":null,"abstract":"Tempeh is a traditional Indonesian food made from fermented soybeans using Rhizopus sp. Tempeh has a large opportunity in the global industrial scale, so monitoring the production process of tempeh is needed. In this paper, the electronic nose is used to study the tempeh fermentation process and to study the stages of this process using linear discriminant analysis (LDA) method. The results of LDA show that there are six stages of the fermentation of tempeh. The stage-1 to the stageS is a process of fungus growth, while the stage-6 is a process of decay. The stages of the tempeh fermentation process are classified using four classification methods: LDA, support vector machine (SVM), k-nearest neighbors (KNN), and random forest (RF). The highest accuracy of classification results obtained RF with an accuracy of 97.33%. The results show good agreement that electronic nose can be used as a standard tool for testing quality of tempeh.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"99 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":"114820902","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 Flow on Horizontal Axis Wind Turbine with Betz Chord Distribution, Twist, and Winglet","authors":"N. A. Satwika, Sarwono, R. Hantoro","doi":"10.1109/ICSTC.2018.8528653","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528653","url":null,"abstract":"Wind energy is one of the clean renewable forms of that can handle the existing global energy crisis. A new design has been proposed for small-scale wind turbine laboratory with high power coefficients. The design used a three blades with Clark-Y airfoil smoothed and 15 segments on the blade. For twist and winglet, the horizontal axis wind turbine (HAWT) using Schmitz method and blended winglet. The turbine has been simulated using blade element momentum (BEM) method for two-dimensional analysis and Computational fluid dynamics (CFD) for three-dimensional analysis. The result shows that the effect of blended winglets on HAWT with winglet has an increasing performance because adding winglets capable of preventing the flow on the surface of tip blade from leaking power, This would reduce the intensity of tip blade rotor vortices and the corresponding lift-induced drag and also on the lower tip speed ratio (TSR), rotor with winglet has a larger starting torque. Therefore the effect of twist on the blade is adjusting a maximum angle of attack for airfoil toward relative velocity for increasing coefficient lift and reduces vortices on leading edge of the blade.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"14 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":"122007638","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 Review of Cloud Migration Strategies in the Developing Country","authors":"R. Ferdiana, G. D. Putra","doi":"10.1109/ICSTC.2018.8528604","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528604","url":null,"abstract":"According to a recent market study by International Data Corporation (IDC), cloud computing is growing by 19% about consumption, while the failure rate of the cloud adoption stays in the relatively low value of 1%. However, the majority of cloud adoptions are only observed in several developed countries such as Japan, Australia, and the United States. Meanwhile, the developing countries are struggling to overcome several issues that hinder cloud adoption, such as unsupportive policies, cloud migration issues, and conservative business culture. This article reviews certain cloud adoption methods that were initially designed or has been properly implemented for developing countries. Questionnaires consisting of 20 assorted questions were employed as data collection method. The results are then validated by drawing a comparison from the best practice methodologies. The article provides insights of several cloud adoption strategies that are most likely to be successful to be implemented in the developing countries.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"9 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":"127348216","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}
Yosua Heru Irawan, D. Sugati, Harianto, M. Abdulkadir, Y. O. Agus Jayatun, Dandung Rudy Hartana
{"title":"Investigating the Temperature and Air Velocity Distribution of Split- Type Air Conditioners Using Computational Fluid Dynamics","authors":"Yosua Heru Irawan, D. Sugati, Harianto, M. Abdulkadir, Y. O. Agus Jayatun, Dandung Rudy Hartana","doi":"10.1109/ICSTC.2018.8528596","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528596","url":null,"abstract":"An air conditioning (AC) system is defined as a system that regulates the temperature, movement, and humidity of air in a particular room. An air conditioning system is said to have good performance if it is able to ensure a room is in a comfortable condition. A college classrooms is one place where teaching and learning activities are conducted. In general, classroom capacity ranges from 20 to 50 people. To avoid noise pollution from the surrounding environment, classrooms should be designed as closed rooms. A problem that often arises in classrooms is the uneven distribution of air temperature and circulation. In this research, numerical simulation is done using the classroom model at Sekolah Tinggi Teknologi Nasional (STTNAS) Y ogyakarta. The air conditioning system installed in the classroom includes two split-type AC units. Numerical simulation is performed on the classroom model using ANSYS Fluent software and a transient pressure-based solver to investigate the temperature and air velocity distribution of the air conditioning system. The room is simulated for 10 minutes, with a time step size of 1 second and total of 600 time steps. The maximum number of iterations per time step is set 100 iterations. Based on numerical simulations, it can be concluded that temperature distribution in the front of the room is higher than in other parts of the room. Furthermore, air velocity distribution in the front of the room is also lower than in other parts of the room. Temperature and air velocity distribution is uneven in the front of the room, a situation caused by improper placement of an indoor air conditioning unit.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"44 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":"124753827","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}
R. Ginting, N. Andini, Arfianto Fahmi, Vinsensius Sigit Widhi Prabowo
{"title":"Waterfilling Power Control on Proportional Fair Algorithm to Maintain Fairness and Saves Power for MIMO-OFDMA 2×2","authors":"R. Ginting, N. Andini, Arfianto Fahmi, Vinsensius Sigit Widhi Prabowo","doi":"10.1109/ICSTC.2018.8528672","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528672","url":null,"abstract":"The energy consumption level become a new consideration in resources management scheme. This works proposed power transmit allocation using waterfilling method combined with proportional fair allocation algorithm on Multiple Input Multiple Output (MIMO) 2×2 OFDMA system. Waterfilling power allocation is a scheme that try to optimize the energy consumption level by giving more transmit power to user that has bad channel condition, and less power to user that good channel condition. The purpose of this waterfilling scheme is to decrease the energy consumption level of the system. This waterfilling power allocation performed on the system after proportional fair allocation algorithm. The proposed system (waterfilling-proportional fair algorithm) is compared with basic proportional fair algorithm with equal power allocation (EPA). Both are tested on varied user and cell radius. Simulation shows that, proposed waterfilling scheme give improvement in fairness by 4.12% and decrease transmitted power by 11.84% or 4.74 watt.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"46 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":"131842146","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":"The Implementation of Genetic Algorithm in Smote (Synthetic Minority Oversampling Technique) for Handling Imbalanced Dataset Problem","authors":"Tince Etlin Tallo, Aina Musdholifah","doi":"10.1109/ICSTC.2018.8528591","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528591","url":null,"abstract":"An imbalanced dataset is a condition that has a minority class which is a class has far fewer instance distributions than other classes. The imbalanced condition can affect the performance of standard classifier algorithms that lead to the biased of the results classification or tend to become a majority class. The SMOTE method overcomes the imbalanced masses by creating synthetic instances of minority classes. However, the implementation of SMOTE resulted in overgeneralization because generated instances have the same amount regardless of the distribution of instances. As a result, the boundaries between classes are unclear. The SMOTE-Simple Genetic Algorithm (SMOTE-SGA) method is used to determine the sampling rate of each instance in order to obtain unequal amounts of synthetic instances. The tests were performed using some imbalanced datasets by comparing the classification results measured using G-means and F-Measure. The results of the application of genetic algorithm at SMOTE can improve the classification result by obtaining better G-means and F-measure value.","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":"130534161","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. Fikri, Ahmad Ashari, Andi Dharmawan, Bakhtiar Alldino
{"title":"An Overview of Fundamental Step Using Wi-Fi Communication for Flight Formation Quadrotors","authors":"M. Fikri, Ahmad Ashari, Andi Dharmawan, Bakhtiar Alldino","doi":"10.1109/ICSTC.2018.8528700","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528700","url":null,"abstract":"A quadrotor is one of Unmanned Aerial Vehicle that has a capability to flight in the restricted area. Quadrotor as the flying robot attracted the interest from various groups such as researchers, hobbyists, and military for doing particular tasks. Although a single quadrotor is capable of overcoming multiple missions, however, a multi quadrotor has advantages for overcoming communication failures. Multi quadrotor in its application is identical with a formation that required leader-follower, behavioral structure, virtual structure, multiple-input-multiple-output approaches for communication between quadrotor. In this study, communication system and multi quadrotor established using AR.Drone 2.0. A study of a formation based on connection has made by AR.Drone. Wi-Fi communication types designed as the communication which is subsequently tested with various flight movements to study the responses that obtained from each AR.Drone. The test results in the study showed that communication system built on multi quadrotor had been done. There is conformity between AR.Drone 1 and AR.Drone 2 motion due to navigation data is taken from a roll, pitch, and yaw parameters.","PeriodicalId":196768,"journal":{"name":"2018 4th International Conference on Science and Technology (ICST)","volume":"16 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":"122323199","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}
Kadinar Novel, Sfenrianto Sfenrianto, W. Gata, Kaman Nainggolan, M. Wahyudi
{"title":"Specify of Estimation Using C4.5 Algorithm of Software Project Estimation at the Point of Sales Application with Cocomo II","authors":"Kadinar Novel, Sfenrianto Sfenrianto, W. Gata, Kaman Nainggolan, M. Wahyudi","doi":"10.1109/ICSTC.2018.8528638","DOIUrl":"https://doi.org/10.1109/ICSTC.2018.8528638","url":null,"abstract":"In software development, it is required an appropriate estimate. One of the most commonly used software project estimation models is Constructive Cost Model(COCOMO II). The model is often used to obtain accurate results in estimating important factors such as cost and human resources. However, to obtain the more accurate estimation results, this study proposes a C4.5 algorithm based on COCOMO II estimation results. In this study, software project estimates are used in the Point of Sales (POS) applications. Based on these data with COCOMO II method, it is estimated that the schedule, staff, and cost are also specifying estimation from the result of COCOMO II using a C4.5 algorithm. The accuracy of the estimation results is around 90% with Algorithm C4.5. The value can be used as a reference for the development of the next POS software project.","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":"129990503","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}