In recent years, blockchain technology has gained immense popularity due to its decentralized and secure nature. However, traditional blockchain systems still face security challenges in terms of confidentiality, inte...
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In this study, the primary stability of two widely used imported dental implants in the Iranian market, referred to here as Implant A and Implant B, was investigated and compared. This comparison was conducted through...
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The optimal control problem with the minimization of a quadratic functional is solved for the process of heat transfer in rarefied media with heat-conduction viscosity. The process is described by the third order part...
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Constrained Friction processing(CFP)is a novel solid-state processing technique suitable for lightweight materials,such Mg-and *** technique enables grain size refinement to fine or even ultrafine *** this study,the e...
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Constrained Friction processing(CFP)is a novel solid-state processing technique suitable for lightweight materials,such Mg-and *** technique enables grain size refinement to fine or even ultrafine *** this study,the effect of CFP on the microstructural refinement of AM50 rods is investigated in terms of particle size and morphology of the eutectic and secondary phases originally present in the base material,in particular the eutecticβ-Mg_(17)Al_(12)and Al-Mn *** that purpose,as-cast and solution heat-treated base material and processed samples were *** Al_(8)Mn_(5) intermetallic phase was identified as the main secondary phase present in all samples before and after the processing.A notorious refinement of these particles was observed,starting from particles with an average equivalent length of a few micrometers to around 560 nm after the *** refinement of the secondary phase refinement is attributed to a mechanism analogous to the attrition comminution,where the combination of temperature increase and shearing of the material enables the continuous breaking of the brittle intermetallic particles into smaller *** for the eutectic phase,the results indicate the presence of the partially divorcedβ-Mg_(17)Al_(12)particles exclusively in the as-cast base material,indicating that no further phase transformations regarding the eutectic phase,such as dynamic precipitation,occurred after the *** the case of the processed as-cast material analyzed after the CFP,the thermal energy generated during the processing led to temperature values above the solvus limit of the eutectic phase,which associated with the mechanical breakage of the particles,enabled the complete dissolution of this ***,CFP was successfully demonstrated to promote an extensive microstructure refinement in multiple aspects,in terms of grain sizes of theα-Mg phase and presence and morphology of the Al-Mn and eutecticβ-Mg_(17)Al_(12).
Conveyor belts are the essential components in majority of the industries, facilitating the efficient movement of coal and minerals from one location to another. Unfortunately, over time, these conveyor belts may beco...
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The textile industry supply chains (SC) face numerous risks and disruptions due to the changing dynamics of high demand and limited resources. The impact of epidemics and regional conflicts further complicates global ...
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Cloud computing is a world view appropriately characterized for IT contributions where data and resources are aggregated by web-based cloud administration organizations using planned hardware and packages, primarily b...
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The necessity of managing the dangers of chemical exposure, fire, and explosion has increased as a result of industrial accidents. In the chemical industry, process flaws or human error often result in accidents despi...
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In modern manufacturing systems and service industries, job scheduling problems are key to optimizing productionprocesses, improving efficiency, and reducing costs. Particularly, the issue of minimizing the maximum p...
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ISBN:
(数字)9798350388077
ISBN:
(纸本)9798350388084
In modern manufacturing systems and service industries, job scheduling problems are key to optimizing productionprocesses, improving efficiency, and reducing costs. Particularly, the issue of minimizing the maximum processing time has attracted widespread attention. This paper introduces an innovative dual-population strategy and combines genetic algorithms with simulated annealing, aiming to efficiently solve job scheduling problems by leveraging the advantages of both. In this strategy, the main population is primarily driven by genetic algorithms, while the exploration population integrates the simulated annealing process, seeking a good balance between global search and local optimization. The dual-population approach not only expands the search space but also increases the diversity of solutions, thereby enhancing the possibility of finding solutions close to the global optimum. Through empirical validation, this paper's algorithm not only provides an effective new tool for solving complex scheduling problems but also offers useful references for the future application of intelligent algorithms in other fields.
Skip-Lot Sampling Plans (SkSP) reduce inspection costs while maintaining quality in continuous production. The SkSP-2L.1 method, a two-level skip-lot sampling plan, enhances flexibility by using two inspection rates b...
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