Results 81 to 90 of about 3,816 (209)

Occurrence of arsenic species in algae and freshwater plants of an extreme arid region in northern Chile, the Loa River Basin [PDF]

, 2017
This study reports data on arsenic speciation in two green algae species (Cladophora sp. and Chara sp.) and in five aquatic plants (Azolla sp., Myriophyllum aquaticum, Phylloscirpus cf.
Barbero Castro, Mercedes, Díaz-Palma, Paula, López Sánchez, José Fermín, Márquez, Anna, Pell i Lorente, Albert, Queirolo, Fabrizio, Rubio i Rovira, Roser, Stegen, Susana   +7 more
core   +1 more source

Artificial Intelligence in Power Oil Transformers Diagnostics [PDF]

, 2013
Disertační práce se zabývá aplikací expertních systémů a softcomputingových metod v problematice diagnostiky výkonových olejových transformátorů. Práce je rozdělena na část teoretickou a část praktickou.
Janda, Ondřej
core  

Fungsi Minyak Isolasi Pada Tranformator Yang Berkapasitas Besar [PDF]

, 2015
Sekarang seperti kita ketahui, pada era globalisasi kebutuhan akan Tenaga Listrik cenderung sudah merupakan hal yang sangat vital, atau sangat dibutuhkan.
Sabari, S. (Sabari)
core   +2 more sources

Strategic Design of Oxophilic Dopants for Active and Durable Alkaline Hydrogen Evolution Reaction Under Seawater

Advanced Functional Materials, Volume 36, Issue 3, 8 January 2026.
This study explores a cost‐effective alternative by incorporating oxophilic dopants into non‐precious metal hosts to enhance water dissociation and catalyst stability. Computational screening identified Ni─V, Ni─Mo, and Co─V as top candidates. Subsequent experiments confirmed Ni20V exhibits superior HER activity, achieving 76 mV lower overpotential ...
Hyeonjung Jung, Yechan Lee, Kyuri Cho, Tae Yong Kim, Jihyeon Song, Han Sol Jung, Sung Il Park, Yoojin Lee, Jinuk Moon, Wongyu Park, Jaewoo Nam, Sangmin Park, Wooyul Kim, Jeong Woo Han   +13 more
wiley   +1 more source

Analyzing the Impact of TiO₂ Nanoparticles in Transformer Oil-Based Nanofluids Through Dissolved Gas Analysis

IEEE Access
Nanofluids based on transformer oil have emerged as promising candidates for improving insulation performance in high-voltage equipment. This study investigates the influence of TiO2 nanoparticles on the dielectric strength and dissolved gas behavior of ...
Abhijeet Lal, Anup Mishra, Anupam Agrawal, Raunak Kumar Tamrakar, Nagendra Tripathi, Sunil Kumar Chouhan, Narendra Khatri   +6 more
doaj   +1 more source

DEVELOPMENT OF FUZZY NEURAL NETWORK FOR THE INTERPRETATION OF THE RESULTS OF DISSOLVED IN OIL GASES ANALYSIS

Electrical engineering & Electromechanics, 2017
Purpose. The purpose of this paper is a diagnosis of power transformers on the basis of the results of the analysis of gases dissolved in oil. Methodology. To solve this problem a fuzzy neural network has been developed, tested and trained. Results.
V.Е. Bondarenko, O.V. Shutenko
doaj   +1 more source

Complementary Surface Motifs Enhance NO3RR Performance in NiFe Alloys

ChemSusChem, Volume 19, Issue 1, January 2026.
Mixed NiFe surface sites promote critical nitrate reduction reaction steps relative to pure Ni(111) and Fe(110), leveraging multiple adjacent sites to enhance ammonium selectivity and overall Faradaic efficiency. Elemental first row transition metal electrocatalysts typically exhibit a tradeoff between Faradaic efficiency (FE) for the nitrate reduction
Jorin Dawidowicz, O. Quinn Carvalho, Shinnosuke Kamohara, Mohammad A. Zaki, Líney Árnadóttir, Kelsey A. Stoerzinger   +5 more
wiley   +1 more source

Intelligent Fault Detection of MV/HV Transformers Using Fuzzy Logic Based on DGA

Eng
Dissolved Gas Analysis (DGA) of power system transformers has emerged as one of the most effective transformer health diagnosing tools by analyzing the gases dissolved in the insulating oil.
Lone Larona Mogotsi, Akhtar Rasool, Edwin Matlotse, Sadaqat Ali, Ahmed Ali   +4 more
doaj   +1 more source

Transformer Oil Quality Diagnostic Using Spectroscopy Techniques - a Review [PDF]

, 2019
Transformer serves as a vital component in the electrical energy supply system. In order to have an uninterrupted power supply, it is essential to timely monitor the condition of the transformer.
Deb, H. (Hironmay), Jidung, S. (Superdao), Naiding, M. M. (Mun), Nunisa, J. (Javin), Sarmah, D. (Dipankar)   +4 more
core   +1 more source

Analysis of Transformer Oil Condition of Dissolved Gas Analysis (DGA) Testing Results with Modified Conventional Methods

International Journal of Electrical, Computer, and Biomedical Engineering
Power transformers are one of the most widely used important components in the electric power system. Dissolved Gas Analysis (DGA) testing is used to diagnose transformer failures before more severe damage occurs by analyzing gas indicators dissolved in transformer oil through several methods, one of which uses conventional methods.
Randy Purnawan Budhihadi, Budi Sudiarto
openaire   +1 more source