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2nd Nommensen International Conference on Technology and engineering, NICTE 2018

作者： Satria, Ady Sihombing, Poltak Sawaluddin Informatics Engineering Study Program Magister Faculty of Computer Science and Information Technology University of Sumatera Utara Indonesia

Load Balancing is very well applied to the distribution of internet access at any point of the Wi-Fi area so that the use of limited devices can be optimal and on target. The proper use of the Greedy Algorithms when applied to an access point device is very capable in resolving excessive loading in a single resource to take the best choice at every stage in an optimum process. Access point device is also a success factor in running the optimization of the distribution of Wi-Fi access on the Access Point is strongly influenced by the parameters set. In this research, user access factor in one very high Wi-Fi area also influences the possibility of incoming access failure. For the application of the results of this study can be utilized on all access point devices that have limits, but for speed internet access remains at the capacity provided bandwidth. © Published under licence by IOP Publishing Ltd.

关键词： Wireless local area networks (WLAN)

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A Design for Three Phase Electronic Controller for Electric Motor Cycle Equivalent to 100-125 Cc Engine Power with Regenerative Braking System

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Journal of Physics: Conference Series 2021年第1期1764卷

作者： Umar Tsani Asep Saepudin Pria Sukamto Informatics Engineering Study Program Sekolah Tinggi Teknologi Muhammadiyah Cileungsi Jl. Anggrek No. 25 Perum PT. Semen Cibinong Cileungsi Bogor Mechanical Engineering Study Program Sekolah Tinggi Teknologi Muhammadiyah Cileungsi Jl. Anggrek No. 25 Perum PT. Semen Cibinong Cileungsi Bogor

Technology always have the potential to disruptive the society, especially electronics since this technology follows Moore Laws. Electric vehicle is predicted to change how individuals are going to do their daily commute. Electric motor cycle is an answer to eco-friendly transportation, economical in the operation and will be more affordable in the future for the people. One of the main component for this vehicle is the 3 phase motor controller. Three phase electric motor has an advantage of being light weight, low cost and more compact compare with dc motors with a comparable power. The design is featuring a regenerative braking system which brings back the mechanical energy back to the system on braking time hence a significant advantage to increase energy efficiency, since a major power lost is happening during braking on conventional vehicle. The design on purpose is using 100-125 cc equivalent of gasoline engine since this engine has the most market in Indonesia. Which is about 10 to 15 KW 3 phase AC motor.

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Secure and Effective Reengineering Information System and Business Processes of Cross-Border Control between the Republic of Indonesia and the Republic Democratic of Timor-Leste 6

Secure and Effective Reengineering Information System and Bu...

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6th International Conference on Cyber and IT Service Management, CITSM 2018

作者： Fransiskus Tjiptabudi, M.H. Igon, Skolastika Siba Bernardino, Raul Muharram, Asep T. Study Program Information System STIKOM Uyelindo Kupang Indonesia Informatics Engineering Department Pamulang University Banten Indonesia

ISBN: (纸本)9781538654330

Technology disruption had boost every sector to adapt and to adjust an infrastructure and system according to the specific needs and business process which can improve an effective operation for the decision making processes and reporting systems within the workflow, social capability, data integrity, and open standard frameworks. Current administration process for capturing cross-border (traveler) in terrestrial immigration posts are used a conventional or handwriting;-passport information is collected on arrival or departure immigration cards or use of ' Pas Lintas Batas' (PLB) special cards for the inhabitant was living alongside both countries border. It is quite difficult to organize cross-border cards for the archiving, filing system, retrieve data, and recapitulate numbers of cross borders for reporting purposes such as individual activities per cities and aims, daily, weekly, and monthly reports. The research will use waterfall with subprojects method within the mentioned modern framework. The aim of this research is to produce an effective and secure information system application prototype for immigration authorities, especially for terrestrial border control system. © 2018 IEEE.

关键词： Information systems

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In silico analysis of tetrahydroxycurcumin compound in tumeric (Curcuma longa) as inhibitor of SARS-CoV-2 virus replication

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AIP Conference Proceedings 2023年第1期2748卷

作者： Mohamad Amin Nanda Hilda Khikmawati Suryadi Suryadi Rifcha Fachrunnisa Ihya Fakhrurizal Amin Dina Maulina Ahya Zhilalikbar Amin Nik Ahmad Nizam Nik Malek Restu Fitriani Department of Biology Faculty of Mathematics and Natural Sciences Universitas Negeri Malang Jl. Semarang No.5 Malang 65145 Indonesia Special Education Department Faculty of Education Universitas Negeri Malang Jl. Semarang No.5 Malang 65145 Indonesia Faculty of Medicine Universitas Indonesia Jakarta Indonesia Biology Education Study Program Faculty of Teacher Training and Education Universitas Lampung Lampung Indonesia Department of Biosciences Faculty of Science Universiti Teknologi Malaysia Johor Malaysia Study Program of Informatics Engineering Faculty of Computer Sciencies Universitas Brawijaya Malang Indonesia Biotechnology Program Faculty of Mathematics and Natural Sciences Universitas Negeri Malang Jl. Semarang No.5 Malang 65145 Indonesia

There are many uses of natural ingredients to find out their potential in overcoming Coronavirus Disease 2019. One of the plants that is often used to treat various diseases, including SARS-Cov2 infection is turmeric. Turmeric contains Tetrahydroxycurcumin compounds. The aim of this research was to study the potential of Tetrahydroxycurcumin in preventing infection with the SARS-CoV-2 virus. The results showed that Tetrahydroxicurcumin has the potential to inhibit Tyrosine protein kinase ABL1, which is a protein that plays a role in the preparation of the cytoskeleton during viral infection. The binding affinity of Tetrahydroxycurcumin for this protein is -8.4 kcal/mol.

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Application of K-Medoids Cluster Result with Particle Swarm Optimization (PSO) in Toddler Measles Immunization Cases

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Journal of Physics: Conference Series 2021年第1期1933卷

作者： Eka Pandu Cynthia Indra Riyana Rahadjeng Erfan Karyadiputra Fauzi Yusa Rahman Agus Perdana Windarto Martalina Limbong Teguh Iman Hermanto E. Rusiadi Y Yarmani Informatics Engineering Study Program Faculty of Science and Technology UIN Sultan Syarif Kasim Riau Indonesia Universitas Bina Sarana Informatika Jakarta Indonesia Universitas Islam Kalimantan Muhammad Arsyad Al Banjari Banjarmasin Indonesia STIKOM Tunas Bangsa Pematangsiantar Indonesia Akademi Keperawatan Surya Nusantara Pematangsiantar Indonesia Informatics Engineering Study Program Sekolah Tinggi Teknologi Wastukancana Indonesia Universitas Pembangunan Panca Budi Medan Indonesia Universitas Bengkulu Bengkulu Indonesia

The objective of the research was to analyze the clustering method by optimizing Particle Swarm Optimization (PSO) in the case of measles immunization for children under the age of 5. The research data source used is the North Sumatra Province Central Bureau of Statistics (https://***/). The data used in 2019 included 33 records with variables BCG, DPT-HB3/DPT-HB/Hib3, CAMPAK (MEASLES + RUBELLA), POLIO 4 and HEPATITIS B. The methods used were k-medoids and PSOs. This method is used to determine the value of the Davies Bouldin Index (DBI) before the cluster value is determined (k). The resulting k values were compared to k-medoids without PSO. The best results of k-medoid and PSO will be tested by classification to see the accuracy value of the cluster formed. The results showed that the optimization of k-medoids and PSO was better with the number of clusters (k = 5) than 0.078. (DBI). The results also show that the accuracy of the cluster formed is 95% with a correlation of 0.98.

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Villages Status Classification Analysis Involving K-Means Algorithm To Support Kementerian Desa Pembangunan Daerah Tertinggal dan Transmigrasi Work programs

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Journal of Physics: Conference Series 2020年第1期1641卷

作者： Paska Marto Hasugian Harvei Desmon Hutahaean Bosker Sinaga Sriadhi Saranom Silaban Informatics Engineering Study Program STMIK Pelita Nusantara Medan Indonesia Computer Science and Informatics Education Study Program Faculty of Engineering Universitas Negeri Medan Medan 20221 Indonesia Departement of chemistry Universitas Negeri Medan Medan 20221 Indonesia

Data mining is a technique of extracting information that has not been known before in a collection of data in the database. Data mining has been applied in various fields that require extracting information, some of the work that can be generated with data mining is classification, prediction, and data grouping. In this study, an analysis of village data collection was carried out to explore the potential or knowledge of the data that has been presented with the main objective of producing a grouping of village status. To support clustering or grouping activities the K-means algorithm used with the general process is to carry out the modeling process without supervision and is one of the methods for grouping data with a system partition, with the principle of allocating each data to the centroid or the closest average, work steps conducted in support of this research is to collect data related to the analysis of data grouping and proceed with the calculation process in accordance with the work steps of the K-means algorithm, the amount of data used as a test of 303 villages scattered in the old Padang regency. The results of calculations by displaying a new group of Cluster 0 is occupied by 120 villages, cluster 1 with a total data of 123 villages, Cluster 2 with a total of 6 villages, cluster 3 with a total of 33 villages while cluster 4 with a total of 21.

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Optimization of short message media in the Arduino and Bluetooth-based blank spot areas

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IOP Conference Series: Materials Science and engineering 2021年第4期1098卷

作者： I Sulistiyowati F A Hanif M Nasar M P T Sulistyanto M Ahsan Faculty of Science and Technology University of Muhammadiyah Sidoarjo Sidoarjo Indonesia Electrical Engineering University of Muhammadiyah Malang Malang Indonesia Informatics Study Program Faculty of Science and Technology Universitas Kanjuruhan Malang Malang Indonesia

Communication is important in human life because communication can bridge all forms of ideas to be conveyed by someone. And the communication media commonly used today are via mobile phones, which can be via SMS messages, WhatsApp, or telephone. The problem is, in some areas the absence of signals or blank spots is a problem for those who rely on communication via mobile phones. For this reason, it is necessary to optimize the short message media in the Arduino and Bluetooth-based blank spot areas. Here the main goal is to make it easier for humans to communicate via mobile phones even in difficult conditions and without a data packet or WIFI signal. The tools used are android, the Lo-Ra module as a long-distance wireless transmission technology platform that can reach distances of 10km, and then also use the Arduino Pro Mini as a microcontroller board and Bluetooth terminal that functions to transmit data from android to Arduino and then forward it to Lo Ra. From the test results, it was found that this tool works well in the blank spot area or difficult to signal, without the need for data packages or WIFI we can still communicate well through the short message media on the cell phone. From the test results, it was found that this tool works well in the blank spot area or difficult to signal, without the need for data packages or WIFI we can still communicate well through the short message media on the cell phone. So, with the invention of this tool, we can still communicate through the medium of short messages even though we are in the blank spot area, and even when we do not have a data package or WIFI.

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Improving students’ mathematical problem-solving ability using differentiated instruction approach

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AIP Conference Proceedings 2022年第1期2468卷

作者： Ade Evi Fatimah Muhammad Daut Siagian Suwanto Fitry Wahyuni Azrina Purba 1Computer Informatics Engineering Education Study Program STKIP Al-Maksum Langkat Jl. Sei Batang Serangan Kwala Bingai Kec. Stabat Kabupaten Langkat Sumatera Utara 20811 Indonesia 2Mathematics Education Study Program Universitas Islam Sumatera Utara Jl. Sisingamangaraja Teladan- Medan Sumatera Utara 20217 Indonesia 3Mathematics Education Study Program STKIP Asy-Syafi’iyah Internasional Medan Jl. Karya Tani No. 1 Pangkalan Masyhur Kec. Medan Johor Kota Medan Sumatera Utara 20146 Indonesia 4Corporate Management Study Program Akademi Perniagaan dan Perusahaan APIPSU Medan Jalan Rasmi No. 28 Medan Sumatera Utara 20123 Indonesia 5Science Education Study Program STKIP Al-Maksum Langkat Jl. Sei Batang Serangan Kwala Bingai Kec. Stabat Kabupaten Langkat Sumatera Utara 20811 Indonesia

Problem-solving abilities are very important in mathematics, not only for those who will study mathematics in the future but also for those who will apply it in other fields of study and in everyday life because in the process of learning and solving it, students can gain experience using knowledge and skills already possessed to be applied in solving non-routine problems. This study aims to analyze and describe students' mathematical problem-solving abilities through the application of the Differentiated Instruction approach. This research is quantitative research with a quasi-experimental method. This research was conducted in one of the Vocational High Schools in Deli Serdang Regency, North Sumatra, for grade 10 students consisting of two classes, namely the control class and the experimental class, where each class consisted of 24 students. The sampling technique with cluster random sampling was used to collect data. Data collection is done by giving a test on trigonometry material. Data analysis was performed using a two-way ANOVA test. The results of this study indicate that the increase in mathematical problem-solving abilities of students who receive learning using the Differentiated Instruction approach is better than students who receive direct learning.

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Intelligent System of Automatic Shrimp Feeding

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IOP Conference Series: Materials Science and engineering 2020年第1期854卷

作者： N Novianda F Liza I Ahmad Informatics Engineering Study Program Faculty of Engineering Samudra University Meurandeh Langsa Lama Village Langsa City Aceh 24354

Feeding on shrimp culture is important to the shrimp growth process so that the expected yields are achieved. Feeding must be balanced and timely, there are no advantages or disadvantages in feeding because all the feed provided is not necessarily completely consumed by shrimp, therefore it is necessary to have technology that can control shrimp feeding. Automatic shrimp feed technology can be a solution to the problem of feeding to support the productivity of shrimp culture. Automatic shrimp feeder is built using an arduino microcontroller module, RTC module (Real Time Clock), and feed throwing system. The shrimp feeding method with the working principle of shrimp feeder is shrimp feed thrown horizontally due to centrifugal force. With the influence of the centrifugal force from the propeller spreader, the feed will be thrown throughout the surface of the pond. Feeding is controlled using Arduino by setting the time. Shrimp feeding is done every 4 hours and the appliance is on for 7 minutes to spread 10 kg of feed for the number of shrimps 1,500 and the width of kolan 400 m2 with a minimum throwing distance of feed 1 meter and a maximum of 7 meters.

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Analysis validation of gamification fashion photography

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IOP Conference Series: Materials Science and engineering 2021年第2期1098卷

作者： S C Wibawa D E Dermawan N G A G E Martiningsih M Mashudi C In Information Technology Informatics Engineering Universitas Negeri Surabaya 60231 Indonesia Faculty of Agriculture Universitas Mahasaraswati Denpasar Bali Indonesia Islamic Education Study Program The State Islamic Institute of Jember (IAIN) Indonesia 68136

The objectives of this study are: 1) developing game interactive for learning photography in fashion, 2) analysis validation of the application. Development of game using the R&D method with Hannafin and Peck Adaptation, which includes several stages, namely needs analysis, design, development, and implementation. In this case, the game can be applied in fashion education student who takes related computer courses in fashion photography. The result of this research are applications about the game of learning how to photograph and the object in Fashion. Analysis validation such as validation value for the aspect of media display obtained 94% results, for the programming aspect it obtained a validation result of 90%, while for the benefit aspect it obtained a value of 90% for the usefulness of media. Based on the average of all components of the instrument question obtained a percentage of 92%. It can be concluded that the media used can help replace the role of lecturers in learning, and students can play the role of a fashion photographer.

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