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Pettifor maps of complex ternary two-dimensional transition metal sulfides

npj Computational Materials 2022年第1期8卷 1692-1702页

作者： Andrea Silva Jiangming Cao Tomas Polcar Denis Kramer Faculty of Engineering and Physical Sciences University of SouthamptonUniversity RoadSO171BJSouthamptonUK National Centre for Advanced Tribology Study University of SouthamptonSouthamptonUK Faculty of Mechanical and Civil Engineering Helmut-Schmidt-Universität/Universität der Bundeswehr HamburgHolstenhofweg 8522043HamburgGermany Advanced Materials Group Department of Control EngineeringFaculty of Electrical EngineeringCzech Technical University in Prague(CTU)PragueCzech Republic Department of Heterogeneous Catalysis Helmholtz-Zentrum HereonMax-Planck-Strasse 1GeesthachtGermany

Alloying is an established strategy to tune the properties of bulk compounds for desired *** the advent of nanotechnology,the same strategy can be applied to 2D materials for technological applications,like single-layer transistors and solid *** we present a systematic analysis of the phase behaviour of substitutional 2D alloys in the Transition Metal Disulfides(TMD)*** phase behaviour is quantified in terms of a metastability metric and benchmarked against many-body expansion of the energy *** show how the metastability metric can be directly used as starting point for setting up rational search strategies in phase space,thus allowing for targeted further computational prediction and analysis of *** results presented here also constitute a useful guideline for synthesis of TMDs binary alloys via a range of synthesis techniques.

关键词： alloys sulfide behaviour

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Design and Implementation of Decisioning System for Wifi Access Point Installation using Genetic Algorithm

Design and Implementation of Decisioning System for Wifi Acc...

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2022 International electrical engineering Congress, iEECON 2022

作者： Thitinaruemit, Aphirak Sitjongsataporn, Suchada Prongnuch, Sethakarn Mahanakorn University of Technology Electrical Engineering Graduate Program Faculty of Engineering and Technology Bangkok Thailand Faculty of Engineering and Technology Dept. of Electronic Engineering Bangkok Thailand Suan Sunandha Rajabhat University Faculty of Industrial Technology Dept. of Robotics Engineering Bangkok Thailand

ISBN: (纸本)9781665402064

This paper presents the design and implementation of a WiFi indoor localization system using genetic algorithm. The coverage capability of the wireless access point is an important parameter in the design to estimate the distance from the transmitted and received signals. The main purpose of this work is to find the effective number of wireless access points in the design area by using genetic algorithm. The Received Signal Strength (RSSI) is measured for the signal quality. The test area consists of the multiple classrooms on the same floor inside the building and the conditions are unobstructed and used the line-of-sight for transmitted and received signals. The experimental results by measuring the received signal through a laptop are indicated that RSSI = -35 dBm at a distance of 5 meters is a prominent indicator of signal quality that can be used to search a variety of information from internet inside the classroom. © 2022 IEEE.

关键词： Genetic algorithms

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LoRa Network Design for Monitoring Landslides on 150 KV Delivery Tower

LoRa Network Design for Monitoring Landslides on 150 KV Deli...

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International Conference on Smart Computing & Communications (ICSCC)

作者： I Wayan Dikse Pancane I Putu Gelgel Astika Putra I Wayan Gede Suarjana Agus Supranartha Electrical Engineering Study Program Universitas Pendidikan Nasional Denpasar Indonesia Department of Public Health Faculty of Sport Science and Public Health Universitas Negeri Manado Sulawesi Indonesia Electro Enginering Elektrical Engineering Program Study Politechnic Negeri Bali Badung Indonesia

ISBN: (数字)9798350363104

ISBN: (纸本)9798350363111

The objective of this research is to design and develop an integrated landslide early detection system at Tower Number Eight, 150 kV Gianyar. The research is expected to result in the construction of a communication system based on LoRa technology that will serve to reduce the potential damage from landslides. In order to achieve this, several parameters must be considered as benchmarks. These include RSSI, SNR, BER and PDR. The device operates by monitoring changes in position, soil moisture and rainfall, and then transmitting the data via LoRa technology. At the sink, the data is recorded and monitored for RSSI, SNR, PDR and BER values. In the test, the source 1 node, situated 300 metres away, exhibited an RSSI value of −100 to −109 dBm and an SNR value of 6.75 to −6.7 in both sunny and rainy weather, with a PDR value of 100%. The source 2 node, situated 600 metres away, exhibited an RSSI value of −97 to −109 dBm and an SNR value of 8.5 to −11.75 dB, with a PDR value of 70 to 100%. It should be noted that the number of bits in the sensor data sent is always complete. This is evidenced by the bit error ratio (BER) value, which is always 0 on both source nodes.

关键词： Rain Electricity Poles and towers Soil moisture LoRa Terrain factors Reliability Monitoring Signal to noise ratio Meteorology

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Convolutional Neural Network for Microhydro Power Forecasting

Convolutional Neural Network for Microhydro Power Forecastin...

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Energy and Sustainable Development

作者： Happy Aprillia Amalia Rizqi Utami Anjas Nur Salam Adi Mahmud Jaya Marindra Riza Hadi Saputra Industrial Technology & Process Department Electrical Engineering Study Program Institut Teknologi Kalimantan Balikpapan Indonesia

ISBN: (数字)9798331517076

ISBN: (纸本)9798331517083

The demand for electrical energy is always fluctuating, influenced by several factors such as household, industrial, commercial, and other public service electricity usage. Moreover, estimates of future electricity demand play a crucial role in the operation of the power system, ranging from power generation planning to power flow analysis and energy system operation costs. electrical power forecasting aims to prevent sudden decreases or increases in electricity demand. Moreover, in tropical countries, the wet season and rivers offer many opportunities for micro-hydro potentials that can be harnessed in combination with solar energy. To manage the forecasting modeling, Convolutional Neural Network (CNN) is utilized CNN for short-term forecasting in Microhydro Power Plants. The anticipated outcomes aim to contribute to effective electricity demand management, facilitating the estimates of variation in microhydro power generation.

关键词： Microhydro power Accuracy Electricity Systems operation Solar energy Predictive models Rivers Convolutional neural networks Forecasting Root mean square

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Stunting Classification in Toddlers: Implementation and Evaluation of the Decision Tree Algorithm

Stunting Classification in Toddlers: Implementation and Eval...

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Information Technology and Computing (ICITCOM), International Conference on

作者： Debby Alita Imam Ahmad Rhaishudin Jafar Rumandan Moh Erkamim Widyasmoro Faculty of Engineering and Computer Science Universitas Teknokrat Indonesia Bandarlampung Indonesia Islamic Education Management Study Program Institut Agama Islam Negeri Ambon Ambon Indonesia Smart City Information Systems Study Program Universitas Tunas Pembangunan Surakarta Indonesia Department of Electrical Engineering Faculty of Engineering Universitas Muhammadiyah Yogyakarta Yogyakarta Indonesia

ISBN: (数字)9798350379839

ISBN: (纸本)9798350379846

Stunting in toddlers is a chronic nutritional issue that affects the physical and cognitive development of children, with serious long-term consequences such as reduced cognitive function and an increased risk of chronic diseases in adulthood. Therefore, early identification and prevention efforts for stunting are crucial. Classifying toddlers into categories of at-risk for stunting or not is essential to provide timely and appropriate interventions. This study employs data mining techniques using the decision tree algorithm to expedite the stunting detection process and improve the accuracy of nutritional status classification in children. The results indicate that the constructed decision tree model can classify children's nutritional status with an accuracy of 83.26%. The decision tree achieves high accuracy in classifying stunting in toddlers due to its ability to handle complex data and identify significant patterns within the data.

关键词： Pediatrics Accuracy Computational modeling Prevention and mitigation Data models Classification algorithms Decision trees Data mining Information technology Diseases

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Secure E-Voting System for Student Associations in Private University Using Paillier Algorithm

Secure E-Voting System for Student Associations in Private U...

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Student Conference on Research and Development (SCOReD)

作者： Ivan Tenusa Eunike Endariahna Surbakti Fenina Adline Twince Tobing Adhi Kusnadi Informatics Study Program Informatics and Engineering Faculty Universitas Multimedia Nusantara

ISBN: (数字)9798350318821

ISBN: (纸本)9798350318838

The representatives of student associations at Private University are entrusted with the responsibility of empowering, facilitating, and nurturing the growth of the students, lecturers, and alumni within their respective programs. If the elected representatives do not align with the general consensus, problems are bound to arise. Therefore, student participation during the annual voting period is of utmost importance. When voting participation is low, the risk of the majority voice not being heard increases. Data from the General Election Commission in the private university reveals that among the four student associations in the Tech and IT faculty, three of them have a participation rate lower than 50%.This research aims to develop an E-Voting system for Student Associations within the university, with the intention of replacing the currently utilized Google Form system and enhancing student participation in future voting periods. While constructing an electronic voting system, the security and confidentiality of participants are vital. The Paillier homomorphic encryption algorithm is employed in the system to encrypt and decrypt voting messages sent by voters, ensuring their confidentiality. This algorithm was chosen due to its relative recency, speed, and relevance to this research in comparison to other algorithms. A user acceptance test conducted using the Technology Acceptance Model (TAM) has demonstrated that the application has been successfully developed, with user assessments of 87.50% for perceived ease of use, 72.27% for perceived usefulness, 74.74% for behavioral intention, and 86.46% for actual usage.

关键词： Technology acceptance model Electronic voting systems Internet Cryptography Electronic voting Homomorphic encryption Research and development

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RFI measurements at Bosscha observatory to prepare a new VGOS station

RFI measurements at Bosscha observatory to prepare a new VGO...

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2023 International Symposium From the Universe Back to Earth: Developing Astronomy to Meet Today's Natural Challenges

作者： Ramadhan, S. Hidayat, T. Suryana, J. Romadhoni, A. Kurniasari, M. Bosscha Observatory Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung Indonesia Astronomy Study Program Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung Indonesia Laboratory of Radio and Microwave Telecommunication School of Electronics and Informatics Engineering Institut Teknologi Bandung Indonesia

A new VGOS (VLBI Global Observing System) radio telescope will be constructed at Bosscha Observatory Lembang, West Java, in cooperation between Shanghai Astronomical Observatory (SHAO) and Institut Teknologi Bandung. One of the preparation steps is to conduct RFI (Radio Frequency Interference) measurements to obtain the RFI environment from the vicinity of the observatory. In this work, we report preliminary measurements of the RFIs that were done for several days in August and September 2023. Instruments used includes: A-INFOTM LB-20180 horn antenna, Wright TechnologiesTM low noise amplifier, and AaroniaTM Spectran V5 80200 OEM spectrum analyzer. The frequency range of 2.0 - 18.0 GHz is targeted referring to VGOS frequencies. Measurements in one day are carried out for about 24 hours in eight cardinal directions and two polarizations. The results and analysis are presented in spectral power flux density plots. © Published under licence by IOP Publishing Ltd.

关键词： Observatories

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Novel Hybrid Algorithm for Investigation of Dissolved Gas Analysis for Alternate Dielectric Fluids of Power Transformer 1

Novel Hybrid Algorithm for Investigation of Dissolved Gas An...

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1st IEEE International Conference on Smart and Sustainable Developments in electrical engineering, SSDEE 2025

作者： Soni, Rahul Raj, Raymon Antony Silwal, Bishal Prasojo, Rahman Azis Darwish, M.M.F. Bakar, Norazhar Abu Electrical and Electronics Engineering Program Navrachana University Gujarat Vadodara India Kongu Engineering College Perundurai Department of Electrical and Electronics Engineering Tamil Nadu Erode India Pulchowk Department of Electrical Engineering Lalitpur Nepal Politeknik Negeri Malang Department of Electrical Engineering Malang Indonesia Shoubra Benha University Faculty of Engineering Department of Electrical Engineering Cairo Egypt Universiti Teknologi PETRONAS Faculty of Engineering Department of Electrical Engineering Perak Malaysia

ISBN: (纸本)9798331542108

The power transformer is the most important element of equipment in an electrical transmission and distribution network. The power and voltage levels that these transformers can manage determine their size, and as the transformer's volume increases, internal isolation and cooling become more challenging. The most popular insulating fluid used in transformers for insulation and cooling is mineral-based oil, which has demonstrated exceptional dielectric and thermal qualities. However, alternative oil technologies have been sought to replace mineral-based oils in recent years because to concerns about safety, cost, and environmental impact. In this context, extensive research efforts have emerged on biological oils for use in transformers. This paper examines the sustainability, safety, and electrical performance of bio-based ester oil in transformer applications with respect to dissolved gas analysis (DGA). AI-based Fuzzy logic controller (FLC) with Duval's triangle (DT) and Duval's pentagon (DP), IEC, CIGRE reports are used in a hybrid manner to identify the possible incipient faults inside the oil-immersed transformers. The graphical analysis of various fuzzy logic plots along with DT and DP are utilized to critically analyze the possible incipient faults arrayed due to DGA. The proposed work proficient compared to previously published results. Highest efficiency of DT and DP based FLC (92%), followed by furan analysis (82.3%). Lastly, recommendations are made on potential fixes for the problems raised and the future course of study for alternate dielectric fluids-based power transformers. The suggested techniques in this research offer a higher diagnostic accuracy than the present approach. © 2025 IEEE.

关键词： Power transformers

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Malaysian Sign Language Translator for Mobile Application 11th

Malaysian Sign Language Translator for Mobile Application

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11th International Conference on Robotics, Vision, Signal Processing and Power Applications, RoViSP 2021

作者： Ke, Soong Cheng Mahamad, Abd. Kadir Saon, Sharifah Fadlilah, Umi Handaga, Bana Faculty of Electrical and Electronic Engineering Universiti Tun Hussein Onn Malaysia Johor Batu Pahat Parit Raja86400 Malaysia Informatics Study Program Faculty of Communication and Informatics Universitas Muhammadiyah Surakarta Surakarta Indonesia

ISBN: (纸本)9789811681288

The society often faces a communication barrier with the deaf and mute community due to the lack of sign language translators. Hand gestures are used as a sign language to communicate between the ordinary people and the deaf people. However, the existing way to learn sign language is ineffective and inconvenient. The number of mobile translator applications for the Malaysian Sign Language on the market is less. The proposed system contains a sign detector mechanism using Support Vector Machine (SVM) to detect and interpret Malaysian Sign Language. The software used in this project were IntelliJ IDEA and Android Studio. This project's development consists of four main phases: dataset acquisition, dataset trainer, shape classification, and sign recognition. Each character is tested ten times to measure the performance of the developed system. The application is performed using an Android smartphone and successfully tested with character A to Z in a normal light condition with a maximum distance of 0.7 m. The successfully testing rate of this developed system is 90%. This application allows people to easily communicate with the deaf community because it is user-friendly and does not require an internet connection. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Support vector machines

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A Dynamic Model for Pauses in the Synthesized Speech of Mathematical Expressions in MathML 14

A Dynamic Model for Pauses in the Synthesized Speech of Math...

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14th International Conference on Education Technology and Computers, ICETC 2022

作者： Souza, Adriana Freitas, Diamantino Bahia Federal Institute of Education Science and Technology Porto Seguro Bahia Brazil Doctoral Program in Digital Media Faculty of Engineering Faculty of Engineering of University of Porto Porto Portugal Department of Electrical and Computer Engineering Faculty of Engineering of University of Porto Porto Portugal

ISBN: (纸本)9781450397766

Voice synthesizers still present several challenges in the speech of mathematical content, as spoken mathematics has quite peculiar rules. In the synthesized speech, pauses help blind and visually impaired students identify the limits of mathematical operators and subexpressions. However, most studies on pauses define them uniformly or use simple punctuation marks to force the synthesizer to introduce pauses in certain parts of the expression. Speech is a dynamic process and pauses in expressions also need to be dynamic to make the synthetic speech of expressions more natural, as this can help in memorizing this type of content. This work proposed a dynamic model of pauses for mathematical expressions. Collected math expressions spoken by teachers were used to create the model. These expressions were useful for identifying patterns and creating a linear regression model. Blind and visually impaired students evaluated the model. Some improvements were observed when we compared the synthesized mathematical expressions with the model and Audiomath, the parameter tool used in this study. © 2022 ACM.

关键词： Dynamic models

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