Results 71 to 80 of about 25,088,946 (286)

Correction to "Novel Probabilistic Neural Network Models Combined with Dissolved Gas Analysis for Fault Diagnosis of Oil-Immersed Power Transformers". [PDF]

ACS Omega, 2022
Zhou Y, Tao L, Yang X, Yang L.
europepmc   +2 more sources

Shale Gas and the EU Internal Gas Market: Beyond the Hype and Hysteria. CEPS Working Document No. 369, September 2012 [PDF]

, 2012
This paper analyses the interplay between shale gas and the EU internal gas market. Drawing on data presented in the 2012 International Energy Agency’s report on unconventional gas and additional scenario analyses performed by the Joint Research Centre ...
Teusch, Jonas
core  

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

Advanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo, João Marcos da Silva Nunes, Marcelly Cristiny Nunes de Carvalho, Alex Rojas, Cristie Luis Kugelmeier, Cristhian Ricardo Loayza Loayza, João Carlos Ferreira, Maria Veronica Goncalves Rodrigues, Rute Sayuri Kano, Isaac Araújo Furtado, Jacyara Dalylla da Silva Nunes, Jhonatan Peres de Sousa, Marcos Natan da Silva Lima, Eden Santos Silva, Gedeon Silva Reis, Samuel Filgueiras Rodrigues   +15 more
wiley   +1 more source

Microstructural, Mechanical, and Textural Evolution of Dissimilar Combination of Laser‐Welded Maraging Steel and 4340 Steel

Advanced Engineering Materials, EarlyView.
The present work reports the microstructural, mechanical, and texture evolution of a dissimilar combination laser‐welded maraging steel with 4340 steel. This is important for aerospace applications. The demand for dissimilar welding is growing rapidly with the requirement of efficient and durable joints.
Bharat Behl, Yu Dong, Alokesh Pramanik, Tapas Kumar Bandyopadhyay   +3 more
wiley   +1 more source

Hybrid Dissolved Gas-in-Oil Analysis Methods

Journal of Power and Energy Engineering, 2015
Dissolved gas analysis is the most widely used diagnostic test in power transformers. The aim of this paper is to introduce the dissolved gas analysis (DGA) methods able to diagnose the transformer conditions. The faults cause the transformer oil, pressboard, and other insulating materials to decompose and generate gases, some of which dissolve in the ...
Leonidha Londo, Rajmonda Bualoti, Marialis Çelo, Nako Hobdari   +3 more
openaire   +2 more sources

Influence of Fe Particle Size Distribution on Chemical Homogeneity, Microstructure, and Crack Formation in Fe–SiC Powder Blends Processed by PBF‐LB/M

Advanced Engineering Materials, EarlyView.
The influence of Fe particle size on in situ alloying of Fe–SiC powder blends in PBF‐LB/M is revealed. Contrary to expectations, the coarser Fe fraction provides a broader crack‐free processing window and slightly improved elemental homogeneity while producing higher but more variable hardness. The results highlight a complex trade‐off between particle
Anna Luise Strauch, Anastasiya Toenjes, Matthias Steinbacher   +2 more
wiley   +1 more source

Analyzing the influence of ZnO nanoparticles on transformer oil using dissolved gas analysis

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Transformer oil-based nanofluids have attracted considerable attention in recent years due to their improved thermal and dielectric properties, which are essential for the efficient and reliable operation of power transformers.
Abhijeet Lal, Anup Mishra, Anupam Agrawal, Rounak Kumar Tamrakar, Nagendra Tripathi, Sunil Kumar Chouhan   +5 more
doaj   +1 more source

A Ni-Doped Carbon Nanotube Sensor for Detecting Oil-Dissolved Gases in Transformers

Sensors, 2015
C2H2, C2H4, and C2H6 are important oil-dissolved gases in power transformers. Detection of the composition and content of oil-dissolved gases in transformers is very significant in the diagnosis and assessment of the state of transformer operations.
Jia Lu, Xiaoxing Zhang, Xiaoqing Wu, Ziqiang Dai, Jinbin Zhang   +4 more
doaj   +1 more source

Global nitrogen input on wetland ecosystem: The driving mechanism of soil labile carbon and nitrogen on greenhouse gas emissions

Environmental Science and Ecotechnology, 2020
Greenhouse gas emissions from wetlands are significantly promoted by global nitrogen input for changing the rate of soil carbon and nitrogen cycling, and are substantially affected by soil labile carbon and nitrogen conversely.
Mengli Chen, Lian Chang, Junmao Zhang, Fucheng Guo, Jan Vymazal, Qiang He, Yi Chen   +6 more
doaj   +1 more source

Condition monitoring of oil filled transformer utilizing dissolved gas analysis / Syahrulazam Sainan [PDF]

, 2000
This project describes the condition monitoring of oil-filled transformer utilizing Dissolved Gas Analysis. The main objective is to study and detect any defect in oil-filled transformer by using Dissolved Gas Analysis. Dissolved Gas Analysis is probably
Sainan, Syahrulazam
core