Results 101 to 110 of about 7,147 (316)

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

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

Design and implementation of equipment for monitoring the salinity in the subsoil [PDF]

Ra Ximhai, 2012
Geochemical exploration equipments to explore the contaminants and structures geological in the subsoil come from abroad are expensive and sometimes parts for replacement are not available in the market.
Mariano Norzagaray Campos, Patricia Muñoz Sevilla, Cipriano García Gutiérrez   +2 more
doaj  

Modeling of Lightning Transients in Photovoltaic Bracket Systems

IEEE Access, 2019
The lightning transient calculation is carried out in this paper for photovoltaic (PV) bracket systems. The electrical parameters of the conducting branches and earthing electrodes are represented by resistances, capacitances, and inductances.
Yaowu Wang, Xiaoqing Zhang, Shiqi Tao
doaj   +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  

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

Long term monitoring of the geoelectric field in the UK – 2012–2024 [PDF]

Geoscientific Instrumentation, Methods and Data Systems
During severe geomagnetic storms, rapid changes in the Earth's magnetic field can induce a significant geoelectric field in the conductive subsurface. This field can cause large potential differences in grounded systems that have long conductors between ...
R. Lyon, G. S. Richardson, O. Baillie
doaj   +1 more source

A BEM approach for grounding grid computation [PDF]

, 1994
16th International Conference on Boundary Element Methods, 1994, Southampton, England[Abstract] Grounding systems are designed to preserve human safety and grant the integrity of equipments under fault conditions. To achieve these goals, the equivalent
Casteleiro, Manuel, Colominas, Ignasi, Navarrina, Fermín   +2 more
core  

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

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source