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Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion, MEDPOWER 2018

作者： Noskov, Robert Petrovic, Ivica Glavaš, Hrvoje Šljivac, Damir Baric, Tomislav Croatian Transmission System Operator Ltd. Vukovarska cesta 217 Osijek31000 Croatia Faculty of Electrical Engineering Computer Science and Information Technology Osijek Ulica Kneza Trpimira 2b Osijek31000 Croatia

ISBN: (纸本)9781839531330

Various EU regulations have established rules for accessing the electricity exchange grid in order to ensure proper functioning of the electricity market while maintaining a proper level of system security. system security depends on the technical capabilities of its components to withstand disturbances and to help prevent serious interruptions or to re-establish system operation after a breakdown occurs. This paper generally gives a theoretical and practical overview of measures for the automatized protection against voltage disruption and reduction of the active or reactive load of lines or transformers in the subsystem PrP Osijek. In addition to automatic protection, measures of excluding certain elements of the grid will be shown, as well as functions for blocking/activating the regulation of grid elements in order to reduce active and reactive loads of lines or transformers. The analysis gives the effect of some measurements on a real transmission grid model. The model had to be adjusted with the grid state and load requirements that anticipated various unfavourable scenarios, which could cause the power system to break down. © 2018 Institution of Engineering and technology. All rights reserved.

关键词： Electric power transmission networks

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Author Correction: Supply chains create global benefits from improved vaccine accessibility

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Nature communications 2023年第1期14卷 5462页

作者： Daoping Wang Ottar N Bjørnstad Tianyang Lei Yida Sun Jingwen Huo Qi Hao Zhao Zeng Shupeng Zhu Stéphane Hallegatte Ruiyun Li Dabo Guan Nils C Stenseth Department of Computer Science and Technology University of Cambridge Cambridge UK. The World Economic Forum Geneva Switzerland. Center for Infectious Disease Dynamics Department of Entomology Pennsylvania State University State College PA USA. Department of Earth System Science Tsinghua University Beijing China. College of Management and Economics Tianjin University Tianjin China. Advanced Power and Energy Program University of California Irvine Irvine CA USA. The World Bank Washington DC USA. Centre for Ecological and Evolutionary Synthesis Department of Biosciences Faculty of Mathematics and Natural Sciences University of Oslo Oslo Norway. Department of Earth System Science Tsinghua University Beijing China. guandabo@***. The Bartlett School of Sustainable Construction University College London London UK. guandabo@***. Centre for Ecological and Evolutionary Synthesis Department of Biosciences Faculty of Mathematics and Natural Sciences University of Oslo Oslo Norway. n.c.stenseth@mn.uio.no. Centre for Pandemics and One Health Research Faculty of Medicine University of Oslo Oslo Norway. n.c.stenseth@mn.uio.no.

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Safe Distance Detector to Watching Television

Safe Distance Detector to Watching Television

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International Conference on Informatics and Computing (ICIC)

作者： N.S Salahuddin M.F Riza M.F.N. R Ghifari Sri Poernomo Sari Computer System Gunadarma University Jakarta Indonesia Faculty of Industrial Technology Gunadarma University Jakarta Indonesia

ISBN: (纸本)9781538669228

Most people in the world have the habit of watching television, sometimes watching television can be a necessity for the community and some people assume that watching television at home can improve their quality of life. But being too close to watching television is not good for eye health because the eyes focus on the television, so the eye muscles will become tense. This is what can cause a decrease in eye function, especially watching in a dark room. The risk of eye pain is much greater. This is a problem that occurs in our environment so there needs to be equipment or detectors that can inform the safe distance for watching television. The purpose of this study is to produce detectors that can inform the safe distance of watching television. The detector has been designed consisting of a motion sensor (PIR sensor) that detects moving objects (humans), proximity sensors (ultrasonic sensors) detects a safe distance to watch television, the keypad to enter the diagonal size of the television screen, LCD to display safe distance and the bell produces sound if the distance is not safe to watch television. Test results show that this detector can work well to inform safe or unsafe distances when someone is watching in front of the television. This detector is ready for use in the community to prevent damage to the eyes.

关键词： TV Detectors Liquid crystal displays Meters Acoustics Testing Microcontrollers

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A Feature clustering approach based on histogram of oriented optical flow and superpixels

arXiv

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arXiv 2018年

作者： Bandara, A.M.R.R. Ranathunga, .L. Abdullah, N.A. Department of Information Technology Faculty of Information Technology University of Moratuwa Moratuwa Department of Computer System and Technology University of Malaya Kuala Lumpur

Visual feature clustering is one of the cost-effective approaches to segment objects in videos. However, the assumptions made for developing the existing algorithms prevent them from being used in situations like segmenting an unknown number of static and moving objects under heavy camera movements. This paper addresses the problem by introducing a clustering approach based on superpixels and short-Term Histogram of Oriented Optical Flow (HOOF). Salient Dither Pattern Feature (SDPF) is used as the visual feature to track the flow and Simple Linear Iterative Clustering (SLIC) is used for obtaining the superpixels. This new clustering approach is based on merging superpixels by comparing short term local HOOF and a color cue to form high-level semantic segments. The new approach was compared with one of the latest feature clustering approaches based on K-Means in eight-dimensional space and the results revealed that the new approach is better by means of consistency, completeness, and spatial accuracy. Further, the new approach completely solved the problem of not knowing the number of objects in a scene. Copyright © 2018, The Authors. All rights reserved.

关键词： Cost effectiveness

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Correction to: Quantitative measurement of density fluctuations with a full‑field laser interferometric vibrometer

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Experiments in Fluids 2020年第4期61卷 1-1页

作者： Greiffenhagen, Felix Woisetschläger, Jakob Gürtler, Johannes Czarske, Jürgen Institute for Thermal Turbomachinery and Machine Dynamics Graz University of Technology Graz Austria Laboratory of Measurement and Sensor System Technique Faculty of Electrical and Computer Engineering Technische Universität Dresden Dresden Germany

The original published article contains error in equation and reference.

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Proposed TRUTAUT model of technology ddoption for LAPOR!

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IOP Conference Series: Materials Science and Engineering 2020年第1期725卷

作者： Darmawan Napitupulu Petrus Dwi Ananto Pamungkas Bernadus Gunawan Sudarsono Sri Poedji Lestari Alexius Ulan Bani Research Center for Quality System and Testing Technology Indonesian Institute of Sciences Serpong Banten Indonesia Faculty of Information Technology Universitas Budi Luhur Jakarta Selatan Indonesia Department of Informatics STMIK Bina Insani Bekasi Indonesia Faculty of Computer Science Universitas Bung Karno Jakarta Pusat Indonesia

This study aims to formulate a model for adopting the LAPOR! application technology. based on the user's perspective. The method used is a comprehensive literature review of the previous two best practice models, TRI and UTAUT. The results showed that there were 13 hypotheses and 10 constructs from the proposed combination model. The entire construct is optimism, innovativeness, discomfort, insecurity, performance expectancy, effort expectancy, social influence, facilitating conditions, behavioral intention and use behavior. In the TRUTAUT combination model, the personality traits aspects of TRI became antacedents of the cognitive aspects of the UTAUT model. The implication of this research is that government institutions can better understand what factors influence the use of technology, especially the LAPOR! application in Indonesia.

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Package Placement Application Based on Location Tracking on Android Platform

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Journal of Physics: Conference Series 2019年第1期1230卷

作者： Ibnu Reza El Islamy Denzy Riko Marsela Rio Filanno Delima Sitanggang Hendra Pasaribu Mardi Turnip Department of Information System Faculty of Technology and Computer Sciences Universitas Prima Indonesia Indonesia

JNE has a pickup service program to pick up a package of loyal online shop customers. This system still has limitations in terms of interaction with customers and JNE customer service. This causes less than the maximum number of customers or partners to get better service. Based on these problems starting with the manufacture of input-output design with the tracking location method will facilitate customers in the package pick-up process. This research will produce a package pickup application on the Android platform that is created using the Java programming language and uses the MySQL database so that JNE can do its business activities in a shorter and timely manner. With the use of this application can cause process time savings reaching package pick-up more efficiently, this application can be a better substitute for the previous system.

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Performance analysis of heterogeneous database management system (DBMS) synchronization using message digest 5

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AIP Conference Proceedings 2020年第1期2291卷

作者： Ayu Helinda Zuhar Musliyana Desita Ria Yusian TB Mahendar Dwipayana Julinawati Suanda Atikah Nor Johari 1Department of Engineering Informatics Faculty of Computer Science Ubudiyah Indonesia University Acheh Indonesia 2Department of Information System Faculty of Computer Science Ubudiyah Indonesia University Acheh Indonesia 3Center of Excellence Geopolymer & Green technology (CEGeoGTech) Universiti Malaysia Perlis Perlis Malaysia

Currently, the Database Management system (DBMS) keeps growing and is available on various platforms. The use of various types of DBMS in a system can cause problems with limitations in the synchronization process because each DBMS only provides synchronization methods for similar DMBS. Previous research has examined heterogeneous database synchronization algorithms on mobile devices using the Message Digest 5 (MD5) method. The process of synchronization with this method is done by comparing the hash values of each record data in the source table with the data hash values in the destination table. If a different hash value is obtained, the synchronization process is based on the type of transaction that has been determined. Based on the principle of work, this algorithm requires a long synchronization time for large-scale databases because it has to check the hash values of each data record. This study examined the performance analysis of the DBMS synchronization method using MD5. The testing was performed by observing the parameters of execution time of synchronization ptocess for the MySQL DBMS and PostgreSQL types. The results showed that the execution time of the MD5 synchronization process was proportional to the number of data records that need to be synchronized. This is because the hashing process that must be done on every data record and synchronization mechanism requires all data to be sent to check and compare the hash values of each data record in the destination synchronization database even though the data has not changed.

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Implementation of Data Mining to Classify the Consumer's Complaints of Electricity Usage Based on Consumer's Locations Using Clustering Method 1

Implementation of Data Mining to Classify the Consumer's Com...

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1st Workshop on Environmental Science, Society, and technology, WESTECH 2018

作者： Pardede, A.M.H. Sembiring, Yusdiana Br Iskandar, Akbar Pitasari, Dyah Retno Sriadhi, S. Rianita, Dian Arifin, Muhammad Ririhena, Mersy Yoslin Siregar, Nurintan Asyiah Supriyono Sari, Ayu Esteka Tondo, Simson Zarlis, Muhammad Winarno, Edy Tulus STMIK Kaputama Sumatera Utara Binjai Indonesia Department of Informatics STMIK AKBA Makassar Indonesia Department of Law Universitas Halmahera Tobelo Indonesia Department of Electrical Engineering Universitas Negeri Medan Indonesia Department of Public Administrations Universitas Lancang Kuning Indonesia Department of Information System Faculty of Engineering Universitas Muria Kudus Indonesia Department of Accounting Universitas Halmahera Indonesia Department of Management STIE Labuhanbatu Sumatera Utara Indonesia Department of Information System Universitas Muria Kudus Kudus Indonesia Department of Management STIE Sakti Alam Kerinci Jambi Indonesia Department of Public Administration Universitas Halmahera Tobelo Indonesia Department of Computer Science Universitas Sumatera Utara Medan Indonesia Faculty of Information Technology Universitas Stikubank Semarang Indonesia Department of Mathematics Universitas Sumatera Utara Medan Indonesia

Data collected by PLN staff on customer's complaints in the usage of electricity are very huge and accumulate. Previously, there was no information about these kinds of complaints in all sub-districts included inside the company, PT. PLN Binjai. On the other hand, each year company experienced problems to classify all complaints in order to obtain customers with information to later be used as a basis for making policy/decision. Data mining used clustering method and K-Means algorithm to classify the data so that important information is obtained from customer's complaints on the electricity usage, using variable: types of complaints, power using by consumer and consumer's region. Data was analyzed using Matlab to produce cluster centers and obtained a relationship between variables obtained with groups with high number of complaints. Results revealed that from 500 customers who have complained, cluster 1 had 218 complaints namely NT Fuse Putus with power used was 1300 watt and was located in Binjai. © Published under licence by IOP Publishing Ltd.

关键词： Data mining

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Reducing the Severity of Black Hole and DDoS Attacks in MANETs by Modifying AODV Protocol using MAC Authentication and Symmetric Encryption

Reducing the Severity of Black Hole and DDoS Attacks in MANE...

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International Conference on Telematics and Future Generation Networks (TAFGEN)

作者： Samia Khan Fazirulhisyam Hashim Mohd Fadlee A. Rasid Thinagaran Perumal Department of Computer and Communication Systems Engineering Faculty of Engineering Malaysia Department of Computer and Communication System Engineering Faculty of Engineering Malaysia Department of Computer and Communication Systems Engineering Faculty of Engineering Serdang Malaysia Department of Computer Science Faculty of Computer Science and Information Technology Serdang Malaysia

In Mobile Ad hoc Networks (MANET), Ad hoc On Demand Distance Vector (AODV) protocol suffers from the black hole attacks that disrupts the functionality of the network by displaying false information during routing process. Such an attack eventually affects the network performance. In this paper, an authentication mechanism based on lightweight encryption algorithm and Media Access Control (MAC) authentication are proposed for black hole and Distributed Denial of Service (DDoS) attacks. The proposed technique is validated in Network Simulator 2 (NS2) whose results show that the approach offers prompt route verification with high throughput and generating less routing overhead avoiding black hole attacks.

关键词： Ad hoc networks Mobile computing Routing computer crime Routing protocols Cryptography Servers

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