Results 101 to 110 of about 7,117 (296)

A Novel Power Transformer Condition Monitoring System Based on Wide-Band Measurement of Core Earth Signals and Correlation Analysis With Multi-Source Data

IEEE Access, 2019
On-line condition monitoring and real-time fault detection are essential to protect power transformers from unscheduled outage of services. The core earth signals (CES) are valuable for fault detection and diagnosis of power transformers, as they are ...
Xuezhi Ke, Lisheng Pang, Xiang Dong, Zhaohui Li   +3 more
doaj   +1 more source

The Human–Nature Relationship and Its Impact on Health: A Critical Review [PDF]

, 2016
Within the past four decades, research has been increasingly drawn toward understanding whether there is a link between the changing human–nature relationship and its impact on people’s health.
Adger, Ashford, Badyaev, Bahn, Baird, Barton, Baum, Bechard, Bennett, Bird, Bloomfield, Blum, Bolhuios, Boyce, Boyd, Brofenbrenner, Brofenbrenner, Brulle, Buckeridge, Burton, Buss, Cameron, Carrera-Bastos, Cavalli-Sforza, Chevalier, Clark, Cohen, Coley, Conn, Cosmides, Darwin, Davis, Depledge, Depledge, Diamond, Donaldson, Figueiro, Fisher, Fleuret, Foster, Foucault, Frankham, Glacken, Grinde, Gual, Guerry, Guiney, Gullone, Hancock, Hancock, Hardin, Hardin, Hay, Heerwagen, Hinchliffe, Hodder, Howell, Huber, Hunt, Jones, Joye, Kamberi, Kaplan, Karrenberg, Laland, Linley, Liu, Louv, Lovelock, Lumsden, Luniak, Maas, Malik, Marmot, Marmot, Max-Neef, Mayer, Miles, Min, Mulihill, Naess, Navarro, Nelson, Nisbet, Nisbet, Noble, Onwuegbuzie, Onwuegbuzie, Orr, Ortega, Ostrom, O’Brien, Park, Park, Pellow, Peters, Ploeger, Powell, Premack, Prout, Pyle, Radkau, Radkau, Relph, Richards, Ryan, Sallis, Saracci, Schultz, Seligman, Seligman, Sharov, Simon, Slocombe, Small, Stedman, Stuckler, Sullivan, Tashakkori, Taylor, Tennant, Thompson Coon, Tidball, Tuan, Tulloch, Turner, UK Department of Health, Ulrich, Van Vugt, VanLeeuwen, Westerterp, White, Whited, Wilson, Wolch, Wolf, World Commission on Environment and Development, Ziersch, Zinsstag   +138 more
core   +3 more sources

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source

Effect of high resistive barrier on earthing system

, 2003
Substation earthing provides a low impedance path and carries current into ground under normal and fault conditions without adversely affecting continuity of service.
Chen, G, Osman, M, Pilling, N
core  

Production improvement in ACM manufacturing company using lean manufacturing approach [PDF]

, 2013
ACM Sdn. Bhd. is a manufacturing company, in which to continuously commit on improvement process which based on the fundamental goal, to minimize or eliminate waste while maximizing production flow.
Sidek, Kamsidi @ Abd Malek
core  

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

PERATION PECULIARITIES OF SINGLE-WIRE HIGH FREQUENCY POWER TRANSMISSION LINES

Сельскохозяйственные машины и технологии, 2017
Increasing efficiency of power transmission lines is an important factor for providing agricultural objects with electric power. During the development power transmission systems, lines direct current, lines alternating voltage of industrial frequency ...
L. Yu. Yuferev
doaj   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Interaction between interconnected and isolated grounding systems: a case study of transferred potentials [PDF]

, 2014
The effect caused by ground fault current in a complex system of interacting electrodes is theoretically studied. The calculation applies to a specific case in which a set of interconnected electrodes, which are part of a grounding ...
Asensio Madrid, Gabriel, Denche Castejón, Gregorio, Faleiro Usanos, Eduardo, Garcia Puertas, Daniel, Moreno Mohino, Jorge, Pazos, Francisco Javier   +5 more
core   +2 more sources