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Grigori Sidorov, Fazlourrahman Balouchzahi, Sabur Butt and Alexander Gelbukh
In this paper, we analyzed the performance of different transformer models for regret and hope speech detection on two novel datasets. For the regret detection task, we compared the averaged macro-scores of the transformer models to the previous state-of...
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Aayushi Chaudhari, Chintan Bhatt, Achyut Krishna and Pier Luigi Mazzeo
In several fields nowadays, automated emotion recognition has been shown to be a highly powerful tool. Mapping different facial expressions to their respective emotional states is the main objective of facial emotion recognition (FER). In this study, fac...
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Georgios Alexandridis, Iraklis Varlamis, Konstantinos Korovesis, George Caridakis and Panagiotis Tsantilas
As the amount of content that is created on social media is constantly increasing, more and more opinions and sentiments are expressed by people in various subjects. In this respect, sentiment analysis and opinion mining techniques can be valuable for th...
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Jun Jiang, Mingxin Zhao, Chaohai Zhang, Min Chen, Haojun Liu and Ricardo Albarracín
High-frequency transformers are the core components of power electronic transformers (PET), whose insulation is deeply threatened by high voltage (HV) and high frequency (HF). The partial discharge (PD) test is an effective method to assess an electrical...
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Orestes Hernández Areu,Héctor Silvio Llamo Laborí,Raul Lorenzo Llanes
Pág. 159 a la 1
La tendencia mundial actual es incrementar la tensión de los circuitos de distribución a los niveles habitualmente empleados en las líneas de subtrasmisión. Esto se hace para evitar los costos de una etapa más de transformación y las pérdidas de energía ...
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Ruska Kattel, Bhupendra Devkota
Pág. 16 - 29
Transformer is the crucial part in any electrical system, however there are many risks associated with its use. Thus this study was focused on assessing the status of PCBs contamination and distribution of transformers in Distribution Centre-North of the...
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Ruska Kattel, Bhupendra Devkota
Pág. 16 - 29
Transformer is the crucial part in any electrical system, however there are many risks associated with its use. Thus this study was focused on assessing the status of PCBs contamination and distribution of transformers in Distribution Centre-North of the...
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Chandra Prakash Beura, Michael Beltle, Philipp Wenger and Stefan Tenbohlen
Ultra-high-frequency (UHF) partial discharge (PD) monitoring is gaining popularity because of its advantages over electrical methods for onsite/online applications. One such advantage is the possibility of three-dimensional PD source localization. Howeve...
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Xinyue Zhao, Fangxu Gui, Heng Chen, Lanxin Fan and Peiyuan Pan
Transformers, as the hub equipment of the power system, are highly valued by engineering and scientific researchers in production practice and scientific research. The goal of transformer research is to ensure the safe operation of transformers while con...
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Narendra Patwardhan, Stefano Marrone and Carlo Sansone
The field of Natural Language Processing (NLP) has undergone a significant transformation with the introduction of Transformers. From the first introduction of this technology in 2017, the use of transformers has become widespread and has had a profound ...
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Jian Li, Zhiman He, Youyuan Wang, Jinzhuang Lv and Linjie Zhao
Converter transformers are the key and the most important components in high voltage direct current (HVDC) power transmission systems. Statistics show that the failure rate of HVDC converter transformers is approximately twice of that of transformers in ...
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Jian Li, Zhiman He, Youyuan Wang, Jinzhuang Lv and Linjie Zhao
Converter transformers are the key and the most important components in high voltage direct current (HVDC) power transmission systems. Statistics show that the failure rate of HVDC converter transformers is approximately twice of that of transformers in ...
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Hao Ma, Peng Yang, Fei Wang, Xiaotian Wang, Di Yang and Bo Feng
In order to effectively carry out the heavy overload monitoring and maintenance of public transformers in the distribution network, ensure the reliability of the distribution network power supply, and improve customer satisfaction with electricity consum...
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Bonginkosi A. Thango and Pitshou N. Bokoro
In the new era of the renewable energy market in South Africa, there is a knowledge gap in the technical standards relating to distribution transformers, which are exclusively intended to serve in large-scale solar photovoltaic (PV) applications. The pro...
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Krzysztof Górecki, Kalina Detka and Krzysztof Górski
This paper presents a compact nonlinear thermal model of pulse transformers. The proposed model takes into account differentiation in values of the temperatures of a ferromagnetic core and each winding. The model is formulated in the form of an electric ...
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Olga Melnikova, Alexandr Nazarychev and Konstantin Suslov
The findings of the analysis of data on the accident rate of power transformers indicate that one of the main causes of their failures is a decrease in the dielectric strength of the insulation. To reduce failures and extend the service life of power tra...
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Valentyn Isaiev,Oleh Velychko,Yurii Anokhin
Pág. 6 - 15
Many different high-precision systems for determining the ratio error and phase displacement of current transformers have been developed by leading specialists in the world. The latest research solutions with the use of the latest measurement tools, inst...
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Carlos Javier Renedo, Agustín Santisteban, Félix Ortiz, Cristian Olmo and Alfredo Ortiz
Transformers are installed in power distribution systems to perform changes in supply voltage. Large consumers often have several transformers installed in parallel to ensure continuity of supply in the event of failure. These machines can achieve very h...
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Yang Liu, Fuyao Yang, Yu Han, Jie Gao, Dezhi Chen and Haonan Bai
Dual-phase composite magnetic materials have magnetic and permanent magnetic properties. They can realize the dual-phase conversion of soft magnetic and permanent magnetic composites with a small amount of excitation energy. They have the advantages of g...
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Matthew Mullane
Pág. 64 - 79
Au Japon, les entreprises ge´ne´rales telles que Kajima Corporation ne sont pas seulement des socie´te´s de construction, mais aussi des conglome´rats multime´dias. Cet article examine la manie`re dont des entreprises comme Kajima initie un mouvement int...
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