Results 41 to 50 of about 32,539 (267)

Application of Proper Orthogonal Decomposition in Spatiotemporal Characterization and Reduced-Order Modeling of Rotor–Stator Interaction Flow Field

Aerospace
The periodic unsteady flow induced by rotor–stator interaction (RSI) is the primary cause of blade forced vibration and fatigue failure. Therefore, analyzing the excitation characteristics of RSI flow fields under multi-parameter conditions is essential ...
Yongkang Lin, Weijian Yang, Hu Wang, Fazhong Wang, Jie Hu, Jianyao Yao   +5 more
doaj   +1 more source

The Effect of Intake Valve Timing on Spark-Ignition Engine Performances Fueled by Natural Gas at Low Power

Energies, 2022
To reduce the greenhouse effect, it is important to reduce not only carbon dioxide but also methane emissions. Methane gas can be not only a fossil fuel (natural gas) but also a renewable energy source when it is extracted from biomass.
Alfredas Rimkus, Tadas Vipartas, Donatas Kriaučiūnas, Jonas Matijošius, Tadas Ragauskas   +4 more
doaj   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

Research on performance and spatial improvement for precooled ducts: parametric analysis and novel layout of parallel precoolers

Case Studies in Thermal Engineering
To meet requirements such as heat exchange capability and spatial compatibility, multiple sub-precoolers are integrated within a precooled engine.
Kun He, Yifan Wang, Huoxing Liu, Yusen Xu, Qinghui Ma   +4 more
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

The combustion and emission characteristics of the diesel engine operated on a dual producer gas-diesel fuel mode

Engineering and Applied Science Research, 2019
Producer gas is a low energy density gaseous fuel converted from carbonaceous materials through a thermochemical process. The gas can be exploited to operate a diesel engine on a dual-fuel mode to partially reduce diesel fuel use.
Monorom Rith, Bernard Buenconsejo, Jeremias A. Gonzaga, H. W. Gitano-Briggs, Neil S. Lopez, Jose Bienvenido M. Biona   +5 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

A Combined Optimization Method for the Transition Control Schedules of Aero-Engines

Aerospace
A well designed transition control schedule can enable the engine to quickly and smoothly transition from one operating state to another, thereby enhancing the maneuverability of the aircraft.
Wang Hao, Xiaobo Zhang, Baokuo Li, Zhanxue Wang, Dawei Li   +4 more
doaj   +1 more source

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

Experimental study on the influence of the Buoyancy number on heat transfer in a pin-fins channel under rotational conditions

Case Studies in Thermal Engineering
The trailing edge of turbine blades poses a significant challenge for research in internal cooling technology. In previously published studies on heat transfer coefficient (HTC), the limitations of experimental testing techniques have hindered the ...
Xuejiao Zhang, Ruquan You, Haiwang Li, Changlin Pi, Song Liu   +4 more
doaj   +1 more source