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"Performance characteristics"
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Microstructural Evolution and Applied Performance of a Highly Undercooled Bulk Ni-5% Cu Alloy
Rapid solidification with a high degree of undercooling is an important method for investigating the metastable solidification of metallic materials. In this paper, we study the microstructural evolution and applied performance characteristics of bulk Ni-5% Cu alloys with degrees of undercooling ranging from 53 to 380 K by a glass fluxing technique. The microstructure homogeneity increases, and the grain refinement increases with increasing degree of undercooling. The global microstructure transforms from a coarse dendrite microstructure into a refined equiaxed grain microstructure as the degree of undercooling increases. Additionally, EDS results illustrate that the segregation less solidification with a remarkable solute trapping effect is preferentially achieved under high undercooling conditions. The compressive yield strength, Vickers hardness and bending modulus of the bulk Ni-5% Cu alloy all increase with increasing melt undercooling. Moreover, the soft magnetic properties of the alloy are modulated when the degree of undercooling changes.
Journal Article
Trusting performance : a cognitive approach to embodiment in drama
\"Argues for the exploration of drama as a conduit to deep emotional learning that has the ability to change the somatic identity of performers and audiences alike\"-- Provided by publisher.
Book
Analysis of the effect of oil inlet size on the static performance characteristics of non-Newtonian lubricated hole-entry hybrid journal bearings
In this study, the influence of inlet pocket size on the static performance of non-Newtonian lubricated hole-entry hybrid journal bearings is theoretically analyzed. The oil film of the bearing is discretized into a nonuniform mesh containing the geometric characteristics of the oil inlet pocket, and the inlet pocket is treated as a micro-oil recess. The Reynolds equation is solved by the finite element method based on Galerkin's techniques, and a new solution strategy to solve the recess/pocket pressure is proposed. The power-law model is used to introduce the non-Newtonian effect. The results show that the static performance characteristics of this type of bearing are greatly affected by the pocket size at both zero speed and high speed.
Journal Article
Naming theatre : demonstrative diagnosis in performance
\"Reading a range of work from the U.S. and UK over the last two decades, this is an innovative study of theatres growing obsession with technologies and effects of naming. How does theatre reflect, and intervene in, naming practices across domains such as philosophy, computing, journalism, anthropology, advertising, military training, and genetics?\"--Provided by publisher.
BOOK
Investigation of the performance characteristics of a diesel engine operating with alcohol
The present study aims to evaluate the impact of adding n -butanol to diesel fuel on the performance characteristics of a diesel engine. Experimental tests were carried out under various load conditions, comparing the engine behavior when operating on conventional diesel fuel (without a biocomponent) and on blends containing n -butanol in volumetric concentrations of 10% (N10), 20% (N20), and 30% (N30). The analysis focused on performance parameters such as specific fuel consumption, effective torque, and effective power output.
Journal Article
Effect of Selective Laser Melting Process Parameters on the Quality of Al Alloy Parts: Powder Characterization, Density, Surface Roughness, and Dimensional Accuracy
Additive manufacturing (AM) of high-strength Al alloys promises to enhance the performance of critical components related to various aerospace and automotive applications. The key advantage of AM is its ability to generate lightweight, robust, and complex shapes. However, the characteristics of the as-built parts may represent an obstacle to the satisfaction of the parts’ quality requirements. The current study investigates the influence of selective laser melting (SLM) process parameters on the quality of parts fabricated from different Al alloys. A design of experiment (DOE) was used to analyze relative density, porosity, surface roughness, and dimensional accuracy according to the interaction effect between the SLM process parameters. The results show a range of energy densities and SLM process parameters for AlSi10Mg and Al6061 alloys needed to achieve “optimum” values for each performance characteristic. A process map was developed for each material by combining the optimized range of SLM process parameters for each characteristic to ensure good quality of the as-built parts. This study is also aimed at reducing the amount of post-processing needed according to the optimal processing window detected.
Journal Article
Formation behavior of truncated hypervelocity shaped charge jet
Truncated liner shaped charge(TLSC) structure can form truncated hypervelocity shaped charge jet(THSCJ), which is significantly different from the ordinary shaped charge jet(OSCJ). The formation behavior of THSCJ is studied by numerical simulation and theoretical analysis. The results show that the additional liner can enhance the propagation of detonation wave and the improvement of jet velocity. The head velocity of THSCJ is obviously higher than that of OSCJ. The influence of liner structure on the formation performance of THSCJ is investigated by changing the protruding length of the additional liner and the height of the truncated liner. Within the given range of structural parameters, when the protruding length of the additional liner is 1.5mm, and the truncation height is 1/3 of the total height of the liner, the performance characteristics of THSCJ is more stable.
Journal Article