Results 71 to 80 of about 69,983 (311)

Improvement and validation of a thermodynamic S.I. engine simulation code [PDF]

, 2003
This study was concerned with improvement and validation of a thermodynamic spark ignition engine simulation code developed in Leeds. Experimental validation data were generated using a central ignition, disc-shaped combustion chamber variant of a ...
Abdi Aghdam, Ebrahim
core  

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Absolute binding free energy thermodynamic cycle. [PDF]

, 2018
From the thermodynamic cycle, the absolute binding free energy is calculated via ΔGbind = ΔG2 − ΔG1, where ΔG3 ≡ 0.
Jochen S. Hub (1235847), Igor Ariz-Extreme (1235853)   +1 more
core   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Gas turbine transient performance modeling for engine flight path cycle analysis [PDF]

, 2010
The growth in competitiveness in airline industry has called for more advanced tool to estimate the operating costs. Engine maintenance costs are an important decisionmaking element during airline fleet selection judgment.
Janikovic, Jan
core  

Optimization of ocean thermal energy conversion based on pressure energy recovery of ammonia water working medium

Frontiers in Energy Research
Ocean thermal energy conversion is a new energy technology that utilizes the temperature difference conditions of seawater to generate electricity. This paper focuses on the closed cycle of ocean thermal energy conversion using ammonia as the working ...
Mingqian Tian, Yanni Yu, Yunxing Hou, Yun Chen, Li Zhang, Yanjun Liu, Yanjun Liu   +6 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Thermodynamics of the ATPase Cycle of GlcV, the Nucleotide-Binding Domain of the Glucose ABC Transporter of Sulfolobus solfataricus [PDF]

, 2006
ATP-binding cassette transporters drive the transport of substrates across the membrane by the hydrolysis of ATP. They typically have a conserved domain structure with two membrane-spanning domains that form the transport channel and two cytosolic ...
Schuurman-Wolters, Gea,, Pretz, Monika G., Tampé, Robert,, van der Does, Chris, Driessen, Arnold J. M., Albers, Sonja-Verena,, Tampe, Robert, Does, Chris van der,, Albers, Sonja-Verena, Schuurman-Wolters, Gea; id_orcid, Pretz, Monika G.,, Albers, Sonja Verena, Does, Chris van der, Schuurman-Wolters, Gea, Driessen, Arnold J.M.,   +14 more
core   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Spatial random permutations and Poisson-Dirichlet law of cycle lengths [PDF]

, 2011
We study spatial permutations with cycle weights that are bounded or slowly diverging. We show that a phase transition occurs at an explicit critical density.
Betz, Volker, Ueltschi, Daniel
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