Results 61 to 70 of about 1,633,406 (302)

Accuracy Improvement of the Large-Signal Model of a High-Power GaN HEMT using Power-Dependent Constant and Tapered Thermal Resistance Methods [PDF]

Journal of Electromagnetic Engineering and Science
This study improved the accuracy of the large-signal model of a high-power gallium nitride (GaN) high electron mobility transistor (HEMT) by using power-dependent constant and tapered thermal resistance methods.
Ho-Sang Kwon, Dong-Wook Kim
doaj   +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

Thermal Tolerance and Host Plant Suitability of Bemisia tabaci MED (Gennadius) in Brazilian Legume Crops

Agronomy
The whitefly, Bemisia tabaci, is a complex of cryptic species that is a significant pest of different legume hosts that inhabits various regions worldwide with diverse climates and characteristics.
Daniel de Lima Alvarez, Rafael Hayashida, Daniel Mariano Santos, Felipe Barreto da Silva, Cristiane Müller, Renate Krause-Sakate, William Wyatt Hoback, Regiane Cristina de Oliveira   +7 more
doaj   +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

Thermal management of lithium-ion batteries using binary nanoparticle infused phase change materials

Journal of Materials Research and Technology
Phase change materials (PCMs) are widely recognized for their effectiveness in thermal management systems across various applications; however, their practical deployment is often limited by inherently low thermal conductivity.
Praveenkumar N, Lingadurai K, Ramkumar T, Bharathiraja R, Mohamed Iqbal Shajahan, Hassan Fouad, Shuichi Torii, Nasser M. Abd El-Salam   +7 more
doaj   +1 more source

A Modified Thermal Time Model Quantifying Germination Response to Temperature for C3 and C4 Species in Temperate Grassland

Agriculture, 2015
Thermal-based germination models are widely used to predict germination rate and germination timing of plants. However, comparison of model parameters between large numbers of species is rare. In this study, seeds of 27 species including 12 C4 and 15 C3
Hongxiang Zhang, Yu Tian, Daowei Zhou
doaj   +1 more source

Thermal tolerance breadths among groundwater crustaceans living in a thermally constant environment [PDF]

Journal of Experimental Biology, 2013
SummaryAbstract: The climate variability hypothesis assumes that the thermal tolerance breadth of a species is primarily determined by temperature variations experienced in its environment. If so, aquatic invertebrates living in thermally-buffered environments would be expected to exhibit narrow thermal tolerance breadths (stenothermy).
Mermillod-Blondin, Florian, Lefour, C., Lalouette, Lisa, Renault, David, Malard, Florian, Simon, Laurent, Douady, Christophe Jean   +6 more
openaire   +4 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Propagation of thermal excitations in a cluster of vortices in superfluid 3He-B

, 2011
We describe the first measurement on Andreev scattering of thermal excitations from a vortex configuration with known density, spatial extent, and orientations in 3He-B superfluid.
A. F. Andreev, A. F. Andreev, A. M. Guénault, D. Schmoranzer, J. J. Hosio, J. Mäkinen, L. Skrbek, M. Krusius, R. de Graaf, R. J. Donnelly, S. N. Fisher, V. B. Eltsov, V. B. Eltsov   +12 more
core   +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