Silicone material extrusion(MEX)is widely used for processing liquids and *** to the uneven linewidth and elastic extrusion deformation caused by material accumulation,products may exhibit geometric errors and perform...
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Silicone material extrusion(MEX)is widely used for processing liquids and *** to the uneven linewidth and elastic extrusion deformation caused by material accumulation,products may exhibit geometric errors and performance defects,leading to a decline in product quality and affecting its service *** study proposes a process parameter optimization method that considers the mechanical properties of printed specimens and production *** improve the quality of silicone printing samples and reduce production costs,three machine learning models,kernel extreme learning machine(KELM),support vector regression(SVR),and random forest(RF),were developed to predict these three *** data were obtained through a complete factorial experiment.A new dataset is obtained using the Euclidean distance method,which assigns the elimination *** is trained with Bayesian optimization algorithms for parameter optimization,the new dataset is input into the improved double Gaussian extreme learning machine,and finally obtains the improved KELM *** results showed improved prediction accuracy over SVR and ***,a multi-objective optimization framework was proposed by combining genetic algorithm technology with the improved KELM *** effectiveness and reasonableness of the model algorithm were verified by comparing the optimized results with the experimental results.
Aluminium 6061 composites, known for their application in the automotive, aerospace, and aviation industries, have been reinforced with Graphene Nanoplatelets (GNP) through the conventional stir casting process. The s...
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In recent years, machining of hard material is difficult and its applications are also increased due to their excellent substance properties. At the same time, better quality machined surface was not achieved through ...
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Industry 4.0 and 5.0 have led to the extensive implementation of Artificial Intelligence (AI) and Machine Learning (ML). AI and ML signify a significant breakthrough in numerous fields by enabling more efficient data ...
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Recently, there has been significant advancement in numerous applications for electronics for the needs of consumers. The equipment uses microelectronic components exposed to a tremendous amount of power, subsequent i...
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The inherent drawbacks of biodiesel,particularly its poor performance in cold climates,necessitate the use of nano-additives to improve its cold flow properties such as the cloud point(CP),pour point(PP),and cold fil...
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The inherent drawbacks of biodiesel,particularly its poor performance in cold climates,necessitate the use of nano-additives to improve its cold flow properties such as the cloud point(CP),pour point(PP),and cold filter plugging point(CFPP).In this study,transesterification was employed to produce methyl esters from waste cooking oil,corn oil,and jatropha *** biodiesels were blended with diesel fuel at a 20%biodiesel and 80%diesel volume ratio and enriched with nano-Al2O3 at concentrations of 25,50,and 100 mg/*** aim of this study is to evaluate the impact of nano-Al2O3 on engine combustion,performance,exergy,and emissions of diesel engines using different biodiesel *** addition of nano-Al2O3 to methyl ester mixtures(JB20A100,CB20A100,and WB20A100)resulted in enhancements in thermal efficiency by 8%,11%,and 13%,*** emissions were reduced by 12%,17%,and 22%for jatropha,corn,and waste cooking oil blends,respectively,with 100 ppm *** reduction in CO emissions can be linked to the enhanced oxidation process facilitated by the high surface area of the nanoparticles,which act as catalysts,promoting more complete ***,UHC emissions decreased by 14%,18%,and 23%,and smoke concentrations were significantly reduced by 14%,17%,and 24%across the biodiesel ***,the introduction of alumina led to the rise in NOx emissions by 9%,15%,and 19%for JB20A100,CB20A100,and WB20A100,*** study also revealed increases in cylinder pressure by 2%,4%,and 8%,and maximum heat release rates by 3%,6%,and 10%for JB20,CB20,and WB20,respectively,upon the incorporation of 100 ppm *** efficiencies improved by 6%,17%,and 23%for JB20A100,CB20A100,and WB20A100,respectively,and the sustainability index showed enhancements of 2%,4%,and 7%.Among the tested blends,WB20 with 100 ppm of nano-Al2O3 demonstrated the most promising results,significantly improving engine exergy,combustion,and performance while mitigati
A comprehensive numerical model is developed to simulate the growth of microalgae under light/dark cycling *** purpose of this study is to predict the growth rate of Chlorella vulgaris cultivated in photobioreactors(P...
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A comprehensive numerical model is developed to simulate the growth of microalgae under light/dark cycling *** purpose of this study is to predict the growth rate of Chlorella vulgaris cultivated in photobioreactors(PBRs)in order to improve the light conditions for microalgae and enhance the photosynthetic *** fluid dynamics(CFD)is used to simulate its internal hydrodynamic *** Lagrangian method is employed to track the movement of microalgae *** radiative transfer equation(RTE)is used to obtain light intensity *** combination of light radiation field and microalgae cell motions is used to construct the light history and they are integrated into the model of the photosynthetic units(PSU)to calculate the microalgae growth *** numerical results demonstrate that enhanced light/dark cycling frequency with ordered mixing can promote efficient microalgae *** effect of the vortex flow field generated by the baffles in an air-lift PBR is analyzed for increasing microalgae growth *** using the 1:1 baffle spacing,the biomass production of microalgae is increased by 41.8% compared to the original PBR.
The main objective of this investigation is to analyze the pressure distribution on hydrodynamic journal bearings using various lubricants like SAE20W-40, rapeseed oil, and soybean oil under different loading conditio...
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To mitigate the exhaustion of hydrocarbon fuels and the rise of pollutants, one can use biofuels in diesel engines for power generation. This study examines the possibility of enhancing the performance and reducing th...
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The present investigation aims to develop the aluminium composite to replace the conventional materials used in the vehicle wheels. The aluminium composite is developed with Aluminium 7079 alloy reinforced with 8% car...
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