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Villages Status Classification Analysis Involving K-Means Algorithm to Support Kementerian Desa Pembangunan Daerah Tertinggal dan Transmigrasi Work programs 1

Villages Status Classification Analysis Involving K-Means Al...

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1st International Conference on Advanced Information Scientific Development, ICAISD 2020

作者： Hasugian, Paska Marto Hutahaean, Harvei Desmon Sinaga, Bosker Sriadhi Silaban, Saranom Informatics Engineering Study Program STMIK Pelita Nusantara Computer Science and Informatics Education Study Program Faculty of Engineering Universitas Negeri Medan Medan20221 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. © 2020 Published under licence by IOP Publishing Ltd.

关键词： K-means clustering

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Analysis of emotional condition based on electrocardiogram signals 1

Analysis of emotional condition based on electrocardiogram s...

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1st International Conference on electrical engineering and Computer science, ICEECS 2014

作者： Hardani, Dian Nova Kusuma Wahyunggoro, Oyas Nugroho, Hanung Adi Faisal, N. Department of Electrical Engineering and Information Technology Universitas Gadjah Mada Yogyakarta Indonesia Study Program of Electrical Engineering Faculty of Engineering Muhammadiyah University of Purwokerto Purwokerto Indonesia

ISBN: (纸本)9781479984770

Emotion is a mental condition that appears spontaneously based on self-conscious effort and usually followed by physiological changes. Emotion is especially caused by stimulation. The related information with emotional condition by someone is communicated to all body through ECG. Therefore, it is important to conduct a research in analysis of emotion based on the measurement of ECG. Data emotion was categorised according to the stimulation that had been given to the subject by using video and music as long as ECG recorded. ICA method analysis with FastICA algorithm could be developed to obtain emotion feature. Feature classification was based on statistical approach from the independent component with higher of kurtosis value. The proposed method in classification was based on decision tree using Random Forest algorithm. The classification result shows that the emotional recognition based on ECG signals can be well implemented by system. The developed method successfully classifies the emotional condition from ECG signals. The method achieves the accuracy of 92.2% for identification of neutral emotion, 93.9% for negative emotion and 92.1% for positive emotion. The value of ICSI is obtained about 81.2% for neutral conditions, 88.3% for negative emotions and 85.1% for positive emotions, it means that the system is successfully to classify individually and effective for overall. © 2014 IEEE.

关键词： Electrocardiograms

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Calibration of 100 A/50mA instrument current transformer energy meter using bisection method 2

Calibration of 100 A/50mA instrument current transformer ene...

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2nd IEEE International Conference on Innovative Research and Development, ICIRD 2019

作者： Bimantoro, Renardi Ardiya Rahardjo, Amien Husnayain, Faiz Aryani, Dwi Riana Hudayala, Chairul Universitas Indonesia Department of Electrical Engineering Faculty of Engineering Depok16424 Indonesia Energy System Engineering Master Study Program Faculty of Engineering Universitas Indonesia Depok16424 Indonesia

ISBN: (纸本)9781728128252

Instrument current transformers (CTs) are widely used in various types of electrical energy measurement. Eddy current losses, losses of hysteresis, a saturation of CT, and inevitable flux leaks could lead to errors including errors in the ratio and phase angle. Improving the accuracy of CT measurement could be achieved in many ways. In this study, a bisection calibration method to overcome the error by implementing correction factor integrated with the Arduino codes is investigated. The reliability of this system has been tested in two different situations, which are a constant and variable load experiments. The result shows that the readout of the developed instrument using 100 A/50mA CT could achieve the deviation value of less than 2%, confirming the excellence accuracy of energy meter. © 2019 IEEE.

关键词： Electric instrument transformers

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Batik Industrial Waste Monitoring and Control System Based on the Internet of Things 5

Batik Industrial Waste Monitoring and Control System Based o...

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5th International Conference on electrical, Electronics, Informatics, and Vocational Education, ICEELINVO 2022

作者： Ali, M. Firdaus, M.F. Electrical Engineering Education Department Faculty of Engineering Universitas Negeri Yogyakarta Indonesia Electrical Study Program Vocational School Universitas Negeri Yogyakarta Indonesia

The aims of this research are to (1) Design and build a Batik Industrial Waste Monitoring and Control System Based on the Internet of Things (BIWMCS -IoT);(2) Test the performance of the BIWMCS-IoT system. The design and implementation of the BIWMCS-IoT system consist of five stages, namely: (1) Needs analysis, (2) Design, consisting of electronic planning, hardware, and software;(3) Development, including hardware and software development;(4) Testing, and (5) implementation. The BIWMCS-IoT system consists of a sensor unit to measure the parameters of water turbidity, temperature, Power of Hydrogen (pH), and the flow velocity of the wastewater then obtained by the microcontroller and the results are sent to the Wi-Fi module to adjust the solenoid valve opening and closing. Based on the testing of the system, has been shown that the BIWMCS-IoT system can work well according to the standards in the Minister of Indonesian Environment Regulation Number 05 of 2014. The reading accuracy of the batik waste monitoring system reaches 96.6% with the delivery time to the smartphone less than 30 seconds. This shows that this system can work well to monitor and control the liquid waste produced by the batik industry. © Published under licence by IOP Publishing Ltd.

关键词： Internet of things

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Evaluation electrical System of Mini Plant Waste Energy on Institut Teknologi PLN 2

Evaluation Electrical System of Mini Plant Waste Energy on I...

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2nd International Conference on Converging Technology in electrical and Information engineering, ICCTEIE 2023

作者： Pawenary Listiawati, Dwi Hendri Insitut Teknologi PLN Electrical Engineering Study Program Faculty of Electricity and Renewable Energy Jakarta Indonesia

ISBN: (纸本)9798350370645

Waste is a problem in almost every region, especially related to how the processing of waste can be converted into other forms as a form of energy that can be utilized, one of which is waste processing by pyrolysis is one of the technologies to convert waste into useful energy or fuel. At this time waste processing requires waste processing machines ranging from organic and un-organic waste shredding machines, briquette processing machines, pellets, using star-delta 3-phase motors, generally still conventional/manually. Current research, the author began to develop a waste and flue gas particle handling machine, a non-incinerator pyrolysis machine with the wet method, a high efficiency cyclone system which originally used a machine manually/ conventionally, replaced with a Delta series Star - Delta series with interlock and interface) automatically. Garbage processing The machine in addition to aiming to reduce waste waste, the machine must be made automatically and friendly to the operator who runs it. © 2023 IEEE.

关键词： Pyrolysis

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Prediction of power transformers lifetime using thermal modeling analysis 2

Prediction of power transformers lifetime using thermal mode...

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2nd IEEE International Conference on Innovative Research and Development, ICIRD 2019

作者： Afifah, Sarah Nainggolan, Jannus Maurits Wibisono, Gunawan Hudaya, Chairul Universitas Indonesia Departement of Electrical Engineering Faculty of Engineering Depok16424 Indonesia Energy System Engineering Master Study Program Faculty of Engineering Universitas Indonesia Depok16424 Indonesia

ISBN: (纸本)9781728128252

Transformer is one of the main components in distribution system of electrical power system towards the consumers, thereby any damage to the transformers will hinder the distribution of electricity towards the consumers, and in turn will make the SAIDI and SAIFI levels go up. High temperature in transformers can cause degradation in the insulation of transformers which in turn will cause failure in transformers. When the temperature in winding reaches or goes beyond the limit of 110°C, a degradation in insulation will start happening and the remaining life of transformers will decrease. Damage in transformers will cause disturbance in electrical power system and result in a major economic loss. Before damages occur, transformers need to be changed up until it is deemed to be no longer efficient, this can be done by replacing the transformer that is about to be damaged. To predict when a transformer is about to break, a calculation is made based on thermal modelling according to IEEE Std C57.91-1995 with its most prominent variable being Hot Spot Temperature (HST). HST is obtained by MATLAB programming using Annex G of IEEE Std. C57.91-1995. By obtaining HST, thus the remaining lifetime of transformers can be predicted. This study analysed the effect of loading, hot-spot temperature, and ambient temperature on the remaining lifetime of a transformer. The higher those three factors, the quicker the transformer will break, with loss of life percentage increasing exponentially. The highest loading, hot spot temperature, and ambient temperature given in this research gives percent loss of life of 0.0888332%, 0.0193394%, 0.020753% respectively. © 2019 IEEE.

关键词： Power transformers

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Novel insights into curcumin adsorption: Kinetics and mechanisms of decolorization using Pondoh snake fruit seed biochar

Next Research

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Next Research 2025年第2期2卷

作者： Wilna Iznilillah Mohamad Ali Fulazzaky Arti Hastuti Asep Bayu Dani Nandiyanto Meli Fiandini Khalida Muda Faculty of Halal Food Science Universitas Djuanda Jalan Tol Ciawi No 1 Ciawi Bogor 16720 Indonesia Study Program of Environmental Science Faculty of Engineering and Science Universitas Ibn Khaldun Bogor Jalan Sholeh Iskandar Kedungbadak Bogor 16162 Indonesia Faculty of Mathematics and Natural Science Education Universitas Pendidikan Indonesia Jalan Dr Setiabudhi No 229 Bandung 40154 Indonesia Faculty of Civil Engineering Universiti Teknologi Malaysia 81310 UTM Skudai Johor Bahru Malaysia

Utilizing natural waste materials to decolorize synthetic and natural dyes offers a promising solution for mitigating environmental pollution. The adsorption isotherms and decolorization kinetics of curcumin onto Pondoh snake fruit seed (PSFS) biochar were predicted using ten isotherm models and the Generalized Fulazzaky (GF) equations, respectively, providing insights into the behavioral characteristics of the adsorption process. Simulations using the Harkin-Jura model demonstrated a good fit, with R ² values exceeding 0.6909 across PSFS biochar granular sizes of 13.65, 25.49, and 65.13 μm, indicating capillary condensation and multilayer adsorption, which validates the GF equations’ applicability. Applying the GF equations to adsorption kinetics simulations showed that declining external mass transfer (EMT) rates were offset by increasing internal mass transfer (IMT) rates. The increase in IMT rates ([ k L a ] d < 0.0 min −1 ) was less pronounced than the decrease in EMT rates ([ k L a ] f > 0.0 min −1 ), suggesting IMT governs curcumin adsorption’s rate-limiting step. PSFS biochar with an average granular size of 25.49 μm proved most effective for decolorizing 100 mg L −1 curcumin, exhibiting a global mass transfer rate range of 0.0020 to 0.0079 min −1 . Utilizing PSFS biochar for curcumin removal contributes to sustainable environmental remediation by advancing green technologies and informing dye effluent management strategies.

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Path Planning for an Autonomous Vehicle based on the Ant Colony Algorithm: A Review

Path Planning for an Autonomous Vehicle based on the Ant Col...

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2023 International Workshop on Artificial Intelligence and Image Processing, IWAIIP 2023

作者： Sari, Desi Windi Dwijayanti, Suci Suprapto, Bhakti Yudho Universitas Sriwijaya Faculty of Engineering Department of Electrical Engineering Palembang Indonesia Universitas Sriwijaya Doctoral Program in Engineering Science Faculty of Engineering Palembang Indonesia

ISBN: (纸本)9798350382914

Efficient path planning technology for autonomous vehicles not only yields significant time savings but also contributes to reducing fuel usage. Various methodologies have been introduced and documented in the literature concerning the path planning of autonomous vehicles. While these methodologies may not ensure an optimal solution, they have demonstrated successful applications in their respective contexts, especially the ant colony algorithm. Nevertheless, not many papers discuss the literature review from the viewpoint of ant colony-based path planning. This paper aims to provide a comprehensive review encompassing the modeling, optimization criteria, and solution algorithms related to the ant colony for path planning. In this study, the review of the ant colony algorithm is divided into global and local path planning. Based on the review results, the ant colony algorithm appears suitable for global path planning. To achieve better performance, it can be combined with other algorithms such as artificial potential field (APF), genetic algorithm, and particle swarm algorithm. These studies are conducted solely in simulations. Therefore, further research should be carried out to ensure the performance of combining the ant colony and APF for autonomous vehicles for both global and local path planning. © 2023 IEEE.

关键词： Autonomous vehicles

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Synthesis and characterization biocomposite collagen-chitosan- glycerol as scaffold for gingival recession therapy

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Journal of International Dental and Medical Research 2017年第1期10卷 118-122页

作者： Rosdiani, Azizah Fresia Widiyanti, Prihartini Rudyarjo, Djoni Izak Biomedical Engineering Study Program Faculty of Science and Technology Universitas Airlangga Indonesia Institute of Tropical Disease Universitas Airlangga Indonesia Physics Study Program Faculty of Science and Technology Universitas Airlangga Indonesia

Gingivitis is considered high prevalence since nearly 75-90% of the world population suffers gingivitis in moderate category. The development of biomaterial in dentistry is divided into synthetic biomaterial and tissue engineering biomaterial includes scaffold engineering. Scaffold biomaterial engineering technique includes the development of tissue engineering and cell. The aim of this study is to determine the best compositions of collagen-chitosan scaffold by adding glycerol, marked by its mechanic characteristic. The synthesis process of the collagen-chitosan-glycerol scaffold is by freeze-dry method to form pores in the scaffold. The characterization of the synthesis was conducted through morphology test, tensile test, toxicity test, swelling test, and biodegradation test. Morphology test results in 50.89 - 143.5 μm pore size and thickness value of 412.0 - 514.9 mm which are appropriate for periodontal applications, especially gingivitis. The tensile test result is 0.46 MPa - 2.36 MPa and the highest value was seen on the variation of 0.46 with 2.36 MPa tensile strength value which is close to the value of UTS for periodontal. While the swelling test results in 1354.04 - 413.9%. Based on the characterization results in this study, the collagen-chitosan scaffold with the addition of glycerol is a potent periodontal scaffold candidate, especially gingivitis.

关键词： Chitosan Collagen Gingivitis Glycerol Scaffold

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Evaluation of communal wastewater treatment plant based on technical, institutional, and community participation aspects in South Surabaya 1

Evaluation of communal wastewater treatment plant based on t...

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1st International Conference on science and Technology for Environmental Protection, ICSTEP 2018

作者： Purnawanti, E. Oktavitri, N.I. Isnadina, D.R.M. Fitriani, N. Environmental Engineering Study Program Department of Biology Faculty of Science and Technology Universitas Airlangga Indonesia

This study aims to discover the obstacles and provide recommendations on the technical and institutional aspects of the chosen communal WWTP. The methods used in this study were field survey and questionnaire. the data were analyzed using quantitative, qualitative, and SWOT analysis. There are 11 out of 13 communal WWTPs that do not work optimally. The technical obstacle encountered in the operation of the chosen communal WWTPs is the huge building capacity that does not meet the criteria of HRT design. The recommendations for the technical problem include lowering the water level and reducing the number of baffles in communal WWTP. The obstacle faced in the operation of chosen communal WWTPs in terms of institutional and community participation aspects is that the maintenance is only known by few people. The recommendation for the aspects of institutional and community participation is for KPP to arrange a socialization on the maintenance of communal WWTP based on its maintenance module. © 2019 IOP Publishing Ltd.

关键词： Maintenance

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