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Energy-efficient buffer and service rate allocation in manufacturing systems using hybrid machine learning and evolutionary algorithms

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Advances in Manufacturing 2024年第2期12卷 227-251页

作者： si-Xiao Gao Hui liu Jun Ota Key Laboratory of Traffic Safety on Track of ministry of Education Institute of Artificial Intelligence and Robotics(IAIR)School of Traffic and Transportation EngineeringCentral South UniversityChangsha410075People’s Republic of China Research into Artifacts Center for Engineering School of EngineeringThe University of TokyoTokyoJapan

Currently,simultaneous buffer and service rate allocation is a topic of interest in the optimization of manufacturing *** allocation problems have been solved previously to satisfy economic requirements;however,owing to the progress of green manufacturing,energy conservation and environmental protection have become increasingly ***,an energy-efficient approach is developed to maximize the throughput and minimize the energy consumption of manufacturing systems,subject to the total buffer capacity,total service rate,and predefined energy *** energy-efficient approach integrates the simulated annealing-non-dominated sorting genetic algorithm-II with the honey badger algorithm-histogram-based gradient boosting regression *** former algorithm searches for Pareto-optimal solutions of sufficient *** latter algorithm builds prediction models to rapidly calculate the throughput,energy consumption,and energy *** examples show that the proposed hybrid approach can achieve a better solution quality compared with previously reported ***,the prediction models can rapidly evaluate manufacturing systems with sufficient *** study benefits the multi-objective optimization of green manufacturing systems.

关键词： Energy-efficient allocation Multi-objective optimization Energy efficiency Energy consumption Machine learning

Structure and 2p decay mechanism of^(18)Mg

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Nuclear Science and Techniques 2024年第6期35卷 145-154页

作者： Long Zhou De-Qing Fang si-min Wang Hui Hua Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Research Center for Theoretical Nuclear Physics NSFC and Fudan UniversityShanghai 200438China School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijing 100871China

The recently discovered,extremely proton-rich nuclide 18 Mg exhibits ground-state decay via two sequential two-proton(2p)emissions through the intermediate nucleus,*** study investigates the structure and the initial 2p decay mechanism of^(18)Mgby examining the density and correlations of the valence protons using a three-body Gamow coupled-channel *** results show that the ground state of^(18)Mgis significantly influenced by the continuum,resulting in a significant s-wave ***,based on the current framework,this does not lead to a significant deviation in mirror symmetry in either the structure or spectroscopy of the 18Mg-18C ***,the time evolution analysis of the^(18)Mgground state suggests a simultaneous 2p emission during the first step of *** observed nucleon-nucleon correlations align with those of the light-mass 2p emitters,indicating a consistent decay behavior within this nuclear region.

关键词： Structure of^(18)Mg Two-proton decay Proton-proton correlation

Measurement of Photorefractive Two-Wave Coupling Exponential Gain Coefficient of LiNbO_(3) : Fe Crystal

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Chinese Physics Letters 1998年第5期15卷 348-350页

作者： SUN Qian LI Yu-dong XU Jing-jun liu si-min ZHANG Guang-yin ZHANG Xin-zheng ZHANG Guo-quan Department of Physics Nankai UniversityTianjin 300071

For a photorefractive crystal,the exponential gain coefficient of two-wave coupling,Г,is a *** this paper,the constantГof a LiNbO_(3):Fe crystal is measured by using Gaussian beams and quasi-uniform *** difference b... 详细信息

关键词： crystal attributed exponential

Stationary Photorefractive Self-Pump Phase-Conjugation with Stimulated Backward Scattering in LiNbO_(3):Fe Crystals

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Chinese Physics Letters 1999年第1期16卷 29-31页

作者： XU Jing-jun ZHANG Xin-zheng SUN Qian ZHANG Guo-quan N.Kamber liu si-min ZHANG Guang-yin Photonics Research Center College of Physical ScienceNankai UniversityTianjin 300071

Stationary photorefractive self-pumped phase-conjugation with one four-wave-mixing interaction region,stimulated by the photorefractive amplified backward scattering,is obtained in LiNbO3:Fe crystals,in which the strong backward scattered light is gotten by putting a scattering particle on the backface of the *** though its reflectivities are not high(its temporal and stationary reflectivities are 10%and 3%,respectively),due to the low electrooptic coefficients of LiNbO3:Fe crystals,our experimental results prove that this mechanism is effective and simple comparing with the“cat”self-pumped phase-conjugator.

关键词： scattering pumped Photorefractive

Design of efficient thermoelectric generators

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Science China Materials 2024年第1期67卷 377-378页

作者： min liu Yanzhong Pei Interdisciplinary Materials Research Center School of Materials Science and EngineeringTongji UniversityShanghai 201804China

Thermoelectricity,which enables direct conversion between heat and electricity,undergoes impressive developments in recent decades,and is particularly promising for recovering low-grade heat of<600 K[1,2].Currently,only Bi2Te3-based thermoelectric devices are commercialized[3].However,the scarcity of tellurium(Te)(Fig.1a)is the main *** leads to numerous recent efforts on the development of efficient nonBi2Te3 thermoelectrics as potential alternatives,and successful examples(Fig.1b)include Mg3Sb2-alloys[2,3]and MgAgSb[1,2].

关键词： enable efficient electricity

Can serum immunoglobulin G4 levels and age serve as reliable predictors of relapse in autoimmune pancreatitis?

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World Journal of Gastroenterology 2024年第5期30卷 512-515页

作者： Jun-min Song si-Yu Sun Department of Gastroenterology Shengjing Hospital of China Medical UniversityShenyang 110004Liaoning ProvinceChina

We are writing in response to the paper published in the World Journal of Gastroenterology by Zhou et *** authors identified higher serum immunoglobulin(Ig)G4 levels and age over 55 years as independent risk factors for disease *** notable strengths,it is crucial to address potential ***,the cohort study included 189 patients with autoimmune pancreatitis(AIP)type 1(with higher IgG4 seropositivity and higher relapse)and 24 with type 2(with lower IgG4 seropositivity and lower relapse).Consequently,most,if not all,AIP type 2 patients were assigned to the normal group,possibly inflating the association of higher serum IgG4 levels with relapse and potentially exaggerating the association of older age with ***,the authors did not provide sufficient details regarding AIP diagnosis,such as the ratio of definitive vs probable cases and the proportion of *** cases where histological evidence is unavailable or indeterminate,AIP type 2 may be misdiagnosed as definitive type 1,and type 1 may also be misdiagnosed as probable type 2,particularly in cases with normal or mildly elevated serum IgG4 ***,in this retrospective study,approximately one-third of the consecutive patients initially collected were excluded for various ***,the impact of nonrandom exclusion on relapse outcomes should be carefully *** conclusion,the paper by Zhou et al offers plausible,though not entirely compelling,evidence suggesting a predictive role of elevated serum IgG4 levels and advanced age in AIP *** foundation for future investigations lies in ensuring a reliable diagnosis and accurate disease subtyping,heavily dependent on obtaining histological *** this regard,endoscopic ultrasound-guided fine-needle biopsy emerges as a pivotal component of the diagnostic process,contributing to mitigating biases in future explorations of the disease.

关键词： Autoimmune pancreatitis Immunoglobulin Endoscopic ultrasound Relapse Age

Pump Intensity Dependence of Two-Beam Coupling in Doped Lithium Niobate Crystals

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Chinese Physics Letters 2000年第6期17卷 431-432页

作者： Nouel Y.Kamber XU Jing-Jun Sonia M.Mikha SONG Feng ZHANG Guo-Quan ZHANG Xin-Zheng liu si-min ZHANG Guang-Yin Photonics Research Center College of Physics ScienceNankai UniversityTianjin 300071

We demonstrated experimentally the dependence of two-beam coupling on the incident pump intensity in our samples of doped LiNbO_(3)*** results show that there is an optimum pump intensity for the signal beam amplification,which can be easily controlled by doping the LiNbO_(3)crystal with suitable concentrations of Fe and damage-resistant dopants such as Mg,In,and Zn.

关键词： pump dopant beam

Reduction of the Resolution Losses in Dual-Wavelength Storage

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Chinese Physics Letters 2000年第9期17卷 663-665页

作者： ZHANG Xin-Zheng XU Jing-Jun SUN Qian Nouel Y.Kamber liu si-min LI Fei-Fei HUANG Hui ZHGNG Guang-Yin Photonics Research Center College of Physical ScienceNankai UniversityTianjin 300071

The dual-wavelength storage for multi-page storage with the nondestructive readout is investigated in the double doped lithium niobate *** image field losses are minimized by adjusting the readout wave vectors,and the... 详细信息

关键词： lithium vectors Resolution

The Effect of Key Nodes on theMalware Dynamics in the Industrial Control Network

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Computers, Materials & Continua 2024年第4期79卷 329-349页

作者： Qiang Fu JunWang Changfu si Jiawei liu College of Computer Science and Technology Shenyang University of Chemical TechnologyShenyang110142China College of Computer Science and Engineering Northeastern UniversityShenyang110169China

As industrialization and informatization becomemore deeply intertwined,industrial control networks have entered an era of *** connection between industrial control networks and the external internet is becoming increasingly close,which leads to frequent security *** paper proposes a model for the industrial control *** includes a malware containment strategy that integrates intrusion detection,quarantine,and ***,the role of keynodes in the spreadofmalware is studied,a comparisonexperiment is conducted to validate the impact of the containment *** addition,the dynamic behavior of the model is analyzed,the basic reproduction number is computed,and the disease-free and endemic equilibrium of the model is also obtained by the basic reproduction ***,through simulation experiments,the effectiveness of the containment strategy is validated,the influence of the relevant parameters is analyzed,and the containment strategy is *** otherwords,selective immunity to key nodes can effectively suppress the spread ofmalware andmaintain the stability of industrial control *** earlier the immunization of key nodes,the *** the time exceeds the threshold,immunizing key nodes is almost *** analysis provides a better way to contain the malware in the industrial control network.

关键词： Key nodes dynamic model industrial control network simulation