JISTECH: Journal of Information Science and Technology https://jurnal.unipa.ac.id/index.php/istech <p><span style="color: rgba(0, 0, 0, 0.87); font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">Jurnal JISTECH merupakan jurnal ilmu Sains dan Teknologi yang diterbitkan dua kali dalam setahun pada bulan April dan Oktober. Redaksi menerima tulisan ilmiah hasil penelitian dan non penelitian di Bidang Sains dan Teknologi berupa penelitian dasar, perencanaan, perancangan, dan studi pengembangan dengan kontribusi yang orisinil dan jelas.</span></p> <p><span style="color: rgba(0, 0, 0, 0.87); font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">Template Artikel untuk jurnal JISTECH: <a title="template jistech" href="https://docs.google.com/document/d/168PVxSMd2EQHwkEgT5fzJr4GKV63xjXbPGNv-a42qZ0/edit?usp=sharing" target="_blank" rel="noopener">https://docs.google.com/document/d/168PVxSMd2EQHwkEgT5fzJr4GKV63xjXbPGNv-a42qZ0/edit?usp=sharing</a><br /></span></p> en-US JISTECH: Journal of Information Science and Technology 2085-6245 Comparative Analysis of Naïve Bayes Algorithm and C4.5 in Predicting Student Graduation (Case Study: Department of Informatics Engineering, University of Papua) https://jurnal.unipa.ac.id/index.php/istech/article/view/107 <p>The number of students who graduate on time is an important indicator that must be considered considering that it is included in the internal quality assurance standards of a university and can be useful for students themselves when entering the world of work. To predict the pass rate, data mining techniques can be used with a classification function where the algorithm examples are Naïve Bayes, kNN (K-Nearest Neighbor), C4.5, and SVM (Support Vector Machine). With so many algorithms that can be used, it is important to know which algorithm is the most effective in classifying data according to the case under study. So that in this study a comparison of classification algorithms in this case is Naïve Bayes and C4.5 and from the analysis process that has been carried out it can be concluded that the C4.5 algorithm is a more effective algorithm used to predict student graduation than Nave Bayes with accuracy values of 76,23%, precision of 50,00%, recall is 19,05%, error is 23,77% and AUC value is 0.669.</p> Muhammad Fikri Indriawan Julius Panda Putra Naibaho Marlinda Sanglise Copyright (c) 2022 Muhammad Fikri Indriawan, Julius P. P. Naibaho, Marlinda Sanglise https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 11 24 Papuan mop application based on android using kodular https://jurnal.unipa.ac.id/index.php/istech/article/view/109 <p>Mop is a Papuan humorous story that satirizes and laughs at the habits of the Papuan people of various ethnicities, ages, professions, and economic status. If the Indonesian people are more familiar with the term stand-up comedy, the mop can be said to be similar to the comedy style. It's just that the mop uses a Papuan accent. The purpose of this research is to design an android-based application which can introduce Papuan mops to all Indonesian people in order to attract their attention that Papua has an entertaining hereditary culture. The development of technology in this era is so rapid that it spreads to various aspects of life. One of them is the world of entertainment. Where technology greatly facilitates access to entertainment at this time. This research is a form of applying the Papuan mop so that it can be used as an entertainment media that is more accessible and at any time. This application is built using kodular and uses a firebase database. The design is made using use case diagrams, activity diagrams, class diagrams and use case scenarios. The testing technique used is black box testing. The Papuan mop application that is designed consists of 2 types of users. User type admin and visitor. The menu options available are read cheats, add cheats, delete cheats, change passwords, give testimonials and read testimonials.</p> Julius Panda Putra Naibaho Ari Nur Safitri Prameti Ningsih Nur Jamila Copyright (c) 2022 Ari Nur Safitri Prameti Ningsih, Julius Naibaho, Nur Jamila https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 32 43 Design and Build a Web-Based Rapid Test Data Administration System Using PHP and MySQL (Case Study: Papua Medika Clinic) https://jurnal.unipa.ac.id/index.php/istech/article/view/111 <p>The Rapid test data administration system at the Papua Medika Clinic which is still offline is a reference for creating titles that can be submitted to lecturers. Data input and data storage of patients who perform rapid test examinations are only carried out in Microsoft Excel, and the storage of daily rapid test results is combined. In addition, the data stored in Microsoft Excel is still based offline, as a consequence the admin who works is difficult to match and view patient data if the computer condition is being updated, temporary loss of electricity, viruses, and various kinds of disturbances on other computer devices. To overcome these problems, it is necessary to design a web-based Rapid Test data administration system to assist admins in managing patient data, as well as reports. Furthermore, the Rapid Test data administration system was built using the PHP programming language and MySQL Database Management System (DBMS). With this Administration system, the process of managing data, and printing results to patients is faster and more efficient.</p> Prasetya Dwi Syahputra Julius Panda Putra Naibaho Fridolin F. Paiki Copyright (c) 2022 Prasetya Dwi Syahputra, Julius P.P. Naibaho, Fridolin F. Paiki https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 58 72 Analysis of Feasibility for Taxiway Light (Case Study in Rendani Airport of Manokwari) https://jurnal.unipa.ac.id/index.php/istech/article/view/113 <p>Taxiway Light is a road that connects between the apron and the runway. Its existence is very important because with the taxiway light, the aircraft can go to an apron safely without disturbing other aircraft. CCR or Constant Current Regulator as a component, its functions to regulates a current fixed and constant in taxiway light with the lighting level divided into five levels, namely step 1 to step 5. The electrical system on the taxiway light is assembled and installed in series with the intention that if one of the circuits is extinguished, the other system is still running. The electrical system on the taxiway light uses the CCR components to produce a constant current. This research used the case study method. The existing load data on step1 is 3,727 Watts, step 2 is 4,495 Watts, step 3 is 5,450 Watts, step 4 is 6,896 Watts, step 5 is 8,723 Watts and step 1for load calculation data is 3,527 Watts, step 2 is 4,488 Watts, step 3 is 5,438 Watts, step 4 is 6,864 Watts, step 5 is 8,712 Watts which means that the results of the comparison at Rendani Airport are feasible because the existing load data is greater than the load data of the calculation results.</p> Raja H. Tampubolon Henny A. B. Lesnussa Abdul Z. Patiran Copyright (c) 2022 Raja H. Tampubolon, Henny A. B. Lesnussa, Abdul Z. Patiran https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 Study on Design of Rooftop On-Grid Solar Power Plant at the Rectorate Building of Papua University https://jurnal.unipa.ac.id/index.php/istech/article/view/115 <p>The demand for electrical energy needs is always projected to increase by 2,214 (TWh) in 2050 or an increase of 9 times compared to the previous years of 254.6 TWh, it's just that current energy needs are still dominated by non-renewable energy which has limitations and does not require energy. environmentally friendly. Therefore, renewable and environmentally friendly energy sources are needed. Utilization of solar energy which is converted into electrical energy is a solution to reduce the use of non-renewable energy. The average daily solar radiation in Indonesia is 4.8 kWh/m². The purpose of this research is to design PLTS Rooftop at the Rectorate Building of the Papua University using helioscope software and to analyze the estimation of electrical energy savings. In designing, using 198 Tallmax TSM-PD14 320 Wp solar modules, SMA Sunny Tripower 20000TL-US brand inverter with a capacity of 4 units (20kW) and an AC Combiner Box containing protective equipment. The simulation results show that the highest electricity production was in May at 8,031.50 kWh and the lowest was in February at 5,997.60 kWh. So from the calculation, the estimated average electrical energy savings is 18%</p> Roy Charly Workala Antonius Duma Palintin Jamius Bin Stepanus Copyright (c) 2022 Roy Charly Workala, Antonius Duma Palintin, Jamius Bin Stepanus https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 97 106 Arduino Based Automatic Disinfectant Sprayer For New Normal Classroom https://jurnal.unipa.ac.id/index.php/istech/article/view/106 <p>Covid-19 is an infectious disease that attacks the respiratory system caused by the corona virus found in 2019. It spread all over the world and declare as a pandemic by the WHO. Thus, also affect Indonesia. One way to prevent the spread of Covid-19, especially in the closed public area, is by spraying disinfectant. This study aims to design an automatic sprayer that could prevent Covid-19 spread in the classroom and used automatically. The system using an Arduino UNO microcontroller. The disinfectant sprayer design to work automatic that will reduce the need for an operator. The tool works well as the system can automatically spray disinfectant to the classroom. Moreover, the automatic sprayer arranges according to the class timetable. However, the system cannot work outside the class timetable, such as additional classes needed.</p> Yanty Rumengan Abdul Zaid Patiran Ernes Bevin Copyright (c) 2022 Yanty Rumengan, Abdul Zaid Patiran, Ernes Bevin https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 1 10 Rancang Bangun Aplikasi Resep Kuliner Berbasis Android Menggunakan Kodular https://jurnal.unipa.ac.id/index.php/istech/article/view/108 <p>Indonesian food is one form of culinary that reflects the diversity of cultures that exist in Indonesia (Dewi, 2020). Culinary results from processed dishes such as side dishes, food and drinks. Culinary is inseparable from cooking activities related to food, starting from the preparation of tools and materials, how to cook, serve and enjoy the results of the dishes. Currently, there are a lot of information media about recipes ranging from recipe books, magazines, internet and so on. However, every recipe in it uses measured ingredients such as measuring cups, measuring spoons and scales. those of us who do not have these tools will estimate carelessly so as to produce less than optimal dishes. Based on these problems, a culinary recipe application was made. The method used for research is the waterfall method, where each stage is done first before moving on to the next stage. With the results of the study using application testing, namely Black Box testing and user surveys in the form of questionnaires. The results of the application test show that the application can run well and the results of the user survey show that the highest number of respondents scores in agree with a total of 60 points and strongly agrees with 30 points, while the lowest agrees with 9 points and disagrees with 1 point. The final result in the research that the author has done is that the culinary recipe application can help users find recipes and get to know and be able to cook dishes using existing tools and materials, with this application users do not need to come to the store to buy recipe books.</p> Fitri Eka Budi Suciati Julius Panda Putra Naibaho Lion Ferdinand Marini Copyright (c) 2022 Fitri Eka Budi Suciati, Julius P. P. Naibaho, Lion Ferdinand Marini https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 25 31 ARCHIPELAGO - Augmented Reality (AR) Application Recognition Of Indonesian National Heroes With Image Tracking Method Based On Android https://jurnal.unipa.ac.id/index.php/istech/article/view/110 <p>The history of the struggle of Indonesian national heroes is unknown to the majority of people and students.Users may find it simpler to learn the history of the introduction of national heroes if the application of hero figures is used. Utilizing the Waterfall development model, research is conducted using R&amp;D.Utilizing UML tools, use cases, activity diagrams, and sequence diagrams, as well as vuforia unity, the development methodology is supported. The functional average - average answers for users based on standard usageIn the meantime, 25 out of 30 respondents stated that the display color selection in the application was in accordance with the eligibility standards.The application's overall design view is 95% related to the application's design.</p> Yohanes Alfian Richiansyah Julius Panda Putra Naibaho Parma Hadi Rantelinggi Copyright (c) 2022 Yohanes Alfian Richiansyah, Julius P.P. Naibaho, Parma Hadi Rantelinggi https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 44 57 Applications for Sunday School Stories at the Sanggeng Logos Congregation Using Kodular https://jurnal.unipa.ac.id/index.php/istech/article/view/112 <p>Protestant Christian education is one of the basic needs of children where at this age children like to play and explore the surrounding environment. There are three learning styles in children, namely auditory, visual and kinesthetic. This is what can be utilized with the use of smartphones because it can provide applications that can apply the learning styles that have been mentioned. With the aim of creating learning media in the form of illustrated stories based on bible stories based on android applications aimed at Sunday school children of the Logos Sanggeng congregation. The author conducted research using the waterfall method in developing Sunday school story applications by utilizing Kodular tools. This study resulted in an application that can be used as an educational medium for children and Sunday school teachers with a learning concept that is easy to understand because it is based on illustrated stories that are very close to children's characters. Sunday school applications are also very easy to learn by children and Sunday school teachers, because the application has an easy-to-learn interface. Application testing is carried out using the black box method on each function with successful test results.</p> Jein Yohana Karubaba Cristian Dwi Suhendra Lion Ferdinand Marini Copyright (c) 2022 Jein Yohana Karubaba, Cristian Dwi Suhendra, Lion Ferdinand Marini https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 73 82 Designing a Rooftop Solar Power Plant at the Faculty of Engineering University of Papua using PVSyst and EasySolar Software https://jurnal.unipa.ac.id/index.php/istech/article/view/114 <p>Electrical energy used in Manokwari, West Papua, is still dominated by fossil energy sources. One of the efforts to reduce the use of fossil energy is to utilize potential renewable energy sources in Manokwari. One of these sources is solar energy with irradiation of 4,859 kWh/m²/day. Rooftop PV is one application of the use of solar energy. In this study, the design of the rooftop solar power plant in the Faculty of Engineering, University of Papua was simulated using EasySolar and PVSyst software. With an azimuth angle of 36°, a roof slope of 35°, a roof area of 1,184.94 m², and an installed power of 66 kWp, it takes 220 panels with a capacity of 300 Wp, 2 inverters with a capacity of 33.3 kW. The layout of PV module on the rooftop is simulated using EasySolar software resulting a total of 220 modules on required a roof area of 594 m². In the simulation output using PVsyst software, it is obtained 99.07 MWh per year and the percentage of savings per year is 102.5%.</p> Martinus Kual Antonius D. Palintin Pandung Sarungallo Copyright (c) 2022 Martinus Kual, Antonius D. Palintin, Pandung Sarungallo https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 89 96 Analysis of Electrical Power System Reliability at PT. PLN (Persero) Rayon Fakfak Using the Loss of Load Probability Method https://jurnal.unipa.ac.id/index.php/istech/article/view/116 <p>The level of reliability determines the continuity of electricity distribution in the power system, the availability of insufficient power will affect the level of reliability of the system. The Loss of Load Probability (LOLP) method is a popular method to calculate the reliability of an electric power system. A high level of reliability is obtained with a small level of risk. The value of the disturbance in the generating units, or the forced outage rate (FOR), is calculated using the installed power data and the disturbance data of each unit. The probability of each generating unit, the probability when another generating unit is added, and the cumulative probability can be calculated based on the FOR value. From the intersection point of the interval of the load curve in one year, the intersection is reached on the 346th day with 720 kW, which is the force outage limit. The results of the LOLP calculations show that the electric power system at PT. PLN Rayon (Persero) Fakfak has experienced a forced outage for about 90.5828 days per year.</p> Zulfikar Bungin Adelhard Beni Rehiara Yanty Rumengan Copyright (c) 2022 Zulfikar Bungin, Adelhard Beni Rehiara, Yanty Rumengan https://creativecommons.org/licenses/by/4.0 2023-01-24 2023-01-24 11 2 107 113