Animal emotion detection, including elephant emotions, is highly possible, but what the traditional emotion detection approaches highlight is their blatant ignorance of adopting edge-enabled intelligence and serverles...
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Predicting and controlling crowd dynamics in emergencies is one of the main objectives of simulated emergency exercises. However, during emergency exercises, there is often a lack of sense of danger by the actors invo...
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To investigate the assumptions proposed in this paper,the evolution law governing the strength and expansion performance of MgO and nano-MgO micro-expansive concrete in the environment of mineral powder was firstly ob...
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To investigate the assumptions proposed in this paper,the evolution law governing the strength and expansion performance of MgO and nano-MgO micro-expansive concrete in the environment of mineral powder was firstly observed in this ***,SEM,XRD,and TG-DSC microscopic tests were conducted to reveal the effects of the active mineral-powder admixture on the hydration degree and expansion performance of MgO and nano-MgO in *** experimental results successfully verified our hypothesis,which indicated that the expansion performance of macro-MgO and nano-MgO was indeed depressed by the addition of active mineral power admixtures,even though the mechanical property of concrete composites was effectively ***,the hydration test also demonstrated the negative interference on the mineral powders,which was induced by the expansion *** is found the amounts of hydrates tend to decrease because the mineral powder ratio reaches and exceeds 40%.Moreover,it is also concluded the effect of expansion agents is governed by the alkalinity cement paste,especially for the *** other words,the expansion performance of nano-MgO will vary more obviously with the hydration process,than *** results of this study provide that effective experimental and theoretical data support the hydration-inhibition mechanism of magnesium expansive agents.
A novel triplex heat treatment was designed to simultaneously improve the high-temperature strength and ductility of titanium matrix composites(TMCs)by modulating the microstructure and(TiB+TiC)reinforcements and prom...
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A novel triplex heat treatment was designed to simultaneously improve the high-temperature strength and ductility of titanium matrix composites(TMCs)by modulating the microstructure and(TiB+TiC)reinforcements and promoting the precipitation of(Ti,Zr)_(6)Si_(3) silicides and theα2 phase.
Perceptual image hashing is a significant and time-effective method for recognizing images within extensive databases, focusing on achieving two key objectives: robustness and discrimination. The right balance between...
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The rapid expansion of Internet of Things (IoT) devices and applications necessitates the need for more efficient computational and data management strategies. The Fog-enabled UAV-as-a-Service (FU-Serve) platform addr...
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In solving multi-objective vehicle routing problems with time windows (MOVRPTW),most existing algorithms focus on the optimization of a single problem formulation. However,little effort has been devoted to exploiting ...
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In solving multi-objective vehicle routing problems with time windows (MOVRPTW),most existing algorithms focus on the optimization of a single problem formulation. However,little effort has been devoted to exploiting valuable knowledge from the alternate formulations of MOVRPTW for better optimization performance. Aiming at this insufficiency,this study proposes a decomposition-based multi-objective multiform evolutionary algorithm (MMFEA/D),which performs the evolutionary search on multiple alternate formulations of MOVRPTW simultaneously to complement each other. In particular,the main characteristics of MMFEA/D are three folds. First,a multiform construction (MFC) strategy is adopted to construct multiple alternate formulations,each of which is formulated by grouping several adjacent subproblems based on the decomposition of MOVRPTW. Second,a transfer reproduction (TFR) mechanism is designed to generate offspring for each formulation via transferring promising solutions from other formulations,making that the useful traits captured from different formulations can be shared and leveraged to guide the evolutionary search. Third,an adaptive local search (ALS) strategy is developed to invest search effort on different alternate formulations as per their usefulness for MOVRPTW,thus facilitating the efficient allocation of computational resources. Experimental studies have demonstrated the superior performance of MMFEA/D on the classical Solomon instances and the real-world instances.
In modern supply chain management, efficient communication and timely decision-making are essential to ensuring smooth operations and avoiding descriptions. This is ensured by efficient communication and timely decisi...
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Brain tumors are one of the deadliest diseases and require quick and accurate methods of detection. Finding the optimum image for research goals is the first step in optimizing MRI images for pre- and post-processing....
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The ductility and toughness of peak-aged(PA)Mg-RE alloys are significantly influenced by their grain structure *** investigate this issue,we examined PA Mg-8.24Gd-2.68Y(wt.%)alloys with two distinct grain structures:a...
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The ductility and toughness of peak-aged(PA)Mg-RE alloys are significantly influenced by their grain structure *** investigate this issue,we examined PA Mg-8.24Gd-2.68Y(wt.%)alloys with two distinct grain structures:an extruded-PA sample with dynamic recrystallized(DRXed)fine grains and coarse hot-worked grains,and an extrusion-solution treated and PA sample with grown large equiaxed *** results showed that the extruded-PA sample demonstrated a favorable combination of tensile strength(426 MPa)and ductility(7.0%).Although intergranular microcracks nucleated in the DRXed region due to strain incompatibility,crack propagation was impeded by the DRXed fine grains,inducing intrinsic and extrinsic toughening *** the other hand,the hot-worked grains in the extruded-PA sample initiated transgranular cracks after a relatively high strain,attributed to the strain partitioning effect,ultimately leading to *** comparison,the solution-treated-PA sample exhibited lower tensile strength and ductility(338 MPa and 3.7%,respectively).Intergranular cracks nucleated in the CG sample before necking,and the readily formed critical crack,facilitated by the large grain size,exhibited unstable crack growth,resulting in premature *** work offers valuable insights for designing high-performance PA Mg-RE alloys and preventing premature failure in practical applications.
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