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Optimizing Average Electric Power During the Charging of Lithium-Ion Batteries Through the Taguchi Method

Transactions of Tianjin University 2024年第2期30卷 152-166页

作者： Mohd h.S.Alrashdan Department of Electrical Engineering Al-Hussein Bin Talal UniversityMaan 71110Jordan

In recent times, lithium-ion batteries have been widely used owing to their high energy density, extended cycle lifespan, and minimal self-discharge rate. The design of high-speed rechargeable lithium-ion batteries faces a significant challenge owing to the need to increase average electric power during charging. This challenge results from the direct influence of the power level on the rate of chemical reactions occurring in the battery electrodes. In this study, the Taguchi optimization method was used to enhance the average electric power during the charging process of lithium-ion batteries. The Taguchi technique is a statistical strategy that facilitates the systematic and efficient evaluation of numerous experimental variables. The proposed method involved varying seven input factors, including positive electrode thickness, positive electrode material, positive electrode active material volume fraction, negative electrode active material volume fraction, separator thickness, positive current collector thickness, and negative current collector thickness. Three levels were assigned to each control factor to identify the optimal conditions and maximize the average electric power during charging. Moreover, a variance assessment analysis was conducted to validate the results obtained from the Taguchi analysis. The results revealed that the Taguchi method was an eff ective approach for optimizing the average electric power during the charging of lithium-ion batteries. This indicates that the positive electrode material, followed by the separator thickness and the negative electrode active material volume fraction, was key factors significantly infl uencing the average electric power during the charging of lithium-ion batteries response. The identification of optimal conditions resulted in the improved performance of lithium-ion batteries, extending their potential in various applications. Particularly, lithium-ion batteries with average electric power of 16 W and 17

关键词： Lithium-ion batteries Average electric power during charging Taguchi method COMSOL Multiphysics software C rate L27 orthogonal array

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Decomposition solutions and B?cklund transformations of the B-type and C-type Kadomtsev–Petviashvili equations

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Communications in Theoretical Physics 2024年第6期 36-46页

作者： Xiazhi hao S y Lou College of Science Zhejiang University of Technology School of Physical Science and Technology Ningbo University

This paper introduces a modified formal variable separation approach, showcasing a systematic and notably straightforward methodology for analyzing the B-type Kadomtsev–Petviashvili(BKP) equation. Through the application of this approach, we successfully ascertain decomposition solutions, B?cklund transformations, the Lax pair, and the linear superposition solution associated with the aforementioned equation. Furthermore, we expand the utilization of this technique to the C-type Kadomtsev–Petviashvili(CKP) equation, leading to the derivation of decomposition solutions, B?cklund transformations, and the Lax pair specific to this *** results obtained not only underscore the efficacy of the proposed approach, but also highlight its potential in offering a profound comprehension of integrable behaviors in nonlinear systems. Moreover, this approach demonstrates an efficient framework for establishing interrelations between diverse systems.

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Addressing poxvirus challenges in the Middle East to enhance biosafety and biosecurity measures

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Journal of Biosafety and Biosecurity 2024年第3期6卷 142-156页

作者： Laith N.AL-Eitan haneen O.Ali hana S.Abu Kharmah Maryam K.Alasmar Iliya y.Khair Ahmad h.Mihyar Department of Applied Biological Sciences Jordan University of Science and Technology22110 IrbidJordan Department of Biotechnology and Genetic Engineering Jordan University of Science and Technology22110 IrbidJordan

The emergence and zoonotic transmission of poxviruses in the Middle East have been recognized as complex public health ***,a vast family of DNA viruses,can infect many hosts,including animals and *** Middle East has had multiple epidemics of poxvirus infections(e.g.,Monkeypox,Smallpox,and Camelpox)that have raised concerns owing to their detrimental effects on livestock,wildlife,and sporadic human *** review aims to thoroughly examine the complexity of the epidemiological patterns,intricate genetic diversity,and several contributing factors that support the emergence and zoonotic transmission of poxviruses in the Middle *** aspects of poxviruses contribute to the emergence of endemics and zoonotic breakouts,such as the complex nature of human-animal interactions,environmental changes,and their subtle capacity for viral *** review was compiled in the hopes of contributing to the current understanding of poxvirus biology and its implications for human and animal health in the Middle *** provide a comprehensive overview of the most common poxviruses in the Middle East,including their classification,structure,replication cycle,pathogenesis,route of transmissions,and of how the Middle East has developed ways to mitigate these biological threats.

关键词： Pox viruses Middle East Emergence Zoonotic Transmission

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Prospect Theory Based Individual Irrationality Modelling and Behavior Inducement in Pandemic Control

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Computer Modeling in Engineering & Sciences 2024年第7期140卷 139-170页

作者： Wenxiang Dong h.Vicky Zhao Department of Automation BNRistTsinghua UniversityBeijing100084China

Understanding and modeling individuals’behaviors during epidemics is crucial for effective epidemic ***,existing research ignores the impact of users’irrationality on decision-making in the ***,existing disease control methods often assume users’full compliance with measures like mandatory isolation,which does not align with the actual *** address these issues,this paper proposes a prospect theorybased framework to model users’decision-making process in epidemics and analyzes how irrationality affects individuals’behaviors and epidemic *** to the analysis results,irrationality tends to prompt conservative behaviors when the infection risk is low but encourages risk-seeking behaviors when the risk is ***,this paper proposes a behavior inducement algorithm to guide individuals’behaviors and control the spread of *** and real user tests validate our analysis,and simulation results show that the proposed behavior inducement algorithm can effectively guide individuals’behavior.

关键词： Disease spread behavior model irrationality prospect theory

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由超拍电子伏特加速器产生的超高能伽马射线气泡

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Science Bulletin 2024年第4期69卷 449-457页

作者： LhAASO Collaboration Zhen Cao Chuandong Gao Cong Li Ruo-yu Liu Ruizhi yang 不详 Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduChina Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China University of Science and Technology of China Hefei 230026China

We report the detection of aγ-ray bubble spanning at least 100deg2 in ultra-high energy(UhE)up to a few PeV in the direction of the star-forming region Cygnus X,implying the presence super PeVatron(s)accelerating protons to at least 10 PeV.A log-parabola form with the photon indexΓ(E)=(2.71±0.02)+(0.11±0.02)×log10(E/10 TeV)is found fitting the gamma-ray energy spectrum of the bubble *** sources,“hot spots”correlated with very massive molecular clouds,and a quasi-spherical amorphousγ-ray emitter with a sharp central brightening are observed in the *** the core of~0.5°,spatially associating with a region containing massive OB association(Cygnus OB2)and a microquasar(Cygnus X-3),as well as previously reported multi-TeV sources,an enhanced concentration of UhEγ-rays is observed with 2 photons at energies above 1 *** general feature of the bubble,the morphology,and the energy spectrum,are reasonably reproduced by the assumption of a particle accelerator in the core,continuously injecting protons into the ambient medium.

关键词： Cosmic rays γ-rays Interstellar medium Star cluster

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An MPI parallel DEM-IMB-LBM framework for simulating fluid-solid interaction problems

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第6期16卷 2219-2231页

作者： Ming Xia Liuhong Deng Fengqiang Gong Tongming Qu y.T.Feng Jin yu hunan Key Laboratory of Geomechanics and Engineering Safety Xiangtan UniversityXiangtan411105China School of Civil Engineering Southeast UniversityNanjing211189China Department of Civil and Environmental Engineering Hong Kong University of Science and TechnologyHong KongChina Zienkiewicz Centre for Computational Engineering Swansea UniversitySwanseaSA18ENUK Fujian Research Center for Tunneling and Urban Underground Space Engineering Huaqiao UniversityXiamen361021China

The high-resolution DEM-IMB-LBM model can accurately describe pore-scale fluid-solid interactions,but its potential for use in geotechnical engineering analysis has not been fully unleashed due to its prohibitive computational *** overcome this limitation,a message passing interface(MPI)parallel DEM-IMB-LBM framework is proposed aimed at enhancing computation *** framework utilises a static domain decomposition scheme,with the entire computation domain being decomposed into multiple subdomains according to predefined processors.A detailed parallel strategy is employed for both contact detection and hydrodynamic force *** particular,a particle ID re-numbering scheme is proposed to handle particle transitions across sub-domain *** benchmarks are conducted to validate the accuracy and overall performance of the proposed ***,the framework is applied to simulate scenarios involving multi-particle sedimentation and submarine *** numerical examples effectively demonstrate the robustness and applicability of the MPI parallel DEM-IMB-LBM framework.

关键词： Discrete element method(DEM) Lattice Boltzmann method(LBM) Immersed moving boundary(IMB) Multi-cores parallelization Message passing interface(MPI) CPU Submarine landslides

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Prediction of the undrained shear strength of remolded soil with non-linear regression,fuzzy logic,and artificial neural network

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Journal of Mountain Science 2024年第9期21卷 3108-3122页

作者： yÜNKÜL Kaan KARAÇOR Fatih GÜRBÜZ Ayhan BUDAK TahsinÖmür Department of Civil Engineering Faculty of Engineering and ArchitectureTokat Gaziosmanpaşa UniversityTokat 60100Türkiye Department of Civil Engineering Faculty of Engineering and ArchitectureKafkas UniversityKars 36000Türkiye Department of Civil Engineering Faculty of EngineeringGazi UniversityAnkara 06570Türkiye Ministry of youth and Sports Ankara 06090Türkiye

This study aims to predict the undrained shear strength of remolded soil samples using non-linear regression analyses,fuzzy logic,and artificial neural network modeling.A total of 1306 undrained shear strength results from 230 different remolded soil test settings reported in 21 publications were collected,utilizing six different measurement *** water content,plastic limit,and liquid limit were used as input parameters for fuzzy logic and artificial neural network modeling,liquidity index or water content ratio was considered as an input parameter for non-linear regression *** non-linear regression analyses,12 different regression equations were derived for the prediction of undrained shear strength of remolded ***-Forward backpropagation and the TANSIG transfer function were used for artificial neural network modeling,while the Mamdani inference system was preferred with trapezoidal and triangular membership functions for fuzzy logic *** experimental results of 914 tests were used for training of the artificial neural network models,196 for validation and 196 for *** was observed that the accuracy of the artificial neural network and fuzzy logic modeling was higher than that of the non-linear regression ***,a simple and reliable regression equation was proposed for assessments of undrained shear strength values with higher coefficients of determination.

关键词： Undrained shear strength Liquidity index Water content ratio Non-linear regression Artificial neural networks Fuzzy logic

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DFT investigation of half-metallic ferromagnetic rare earth based spinels Mgho_(2)Z_(4)(Z=S,Se)

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Journal of Rare Earths 2024年第1期42卷 121-128,I0005页

作者： Maiza Zanib Mumtaz Manzoor N.A.Noor M.Waqas Iqbal Mazia Asghar h.h.hegazy A.Laref Department of Physics Riphah International UniversityLahore CampusPakistan Research Centre for Advanced Materials Science King Khalid UniversityP.O.Box 9004AbhaSaudi Arabia Department of Physics Faculty of ScienceKing Khalid UniversityP.O.Box 9004AbhaSaudi Arabia Department of Physics and Astronomy College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia

half-metallic ferromagnetism,mechanical as well as thermoelectric properties for rare earth-based spinels Mgho_(2)Z_(4)(Z=S,Se)were investigated using density functional theory(DFT).Structural optimization was done with Perdew-Burke-Ehrenzorf(PBE)sol-generalized gradient approximation(GGA)to calculate the lattice constant of both spinels comparable to experimental *** addition,Born stability criteria and negative formation energy show that our studied spinels are also structurally and dynamically stable in the cubic *** ferromagnetic(FM)state stability,we also calculated the energy differences among FM,antiferromagnetic(AFM),and non-magnetic(NM)***,Curie temperatures of ferromagnetic phases were also *** used Trans-Blaha improved BeckeJohnson(TB-mBJ)potential functional for electronics as well as magnetic characteristics,which lead to the consistent explanation of half-metallic ferromagnetism,representing the whole band-occupancy in material with exact detail of density of states(DOS).The stable FM state was examined in spinels due to the exchange splitting of ho cation consisting of p-d hybridizations compatible with the result achieved for electronics band structure and ***,spin magnetic moment was explained in terms of anion,cation,and sharing charge on studied *** addition,the calculated thermoelectric properties clearly show that operation range of these systems may be utilized by future experimental works for identifying the potential applications of these systems.

关键词： ho-based spinels DFT simulations Mechanical parameters Electronic properties hM ferromagnetism Figure of merit

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铁磁薄膜快速稳定的磁化动力学控制

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上海大学学报（自然科学版） 2024年第4期30卷 758-768页

作者：李欣和班玥上海大学材料科学与工程学院上海200444

提出了亚微米铁磁薄膜磁化动力学的快速控制方案.由于自旋轨道耦合作用,外加电场所激发的自旋极化电流通过s-d交换耦合引起铁磁层的局域磁矩发生偏转.使用量子绝热捷径技术反控制法在亚微米铁磁薄膜模型中提出了电场控制方案,实现了磁... 详细信息

提出了亚微米铁磁薄膜磁化动力学的快速控制方案.由于自旋轨道耦合作用,外加电场所激发的自旋极化电流通过s-d交换耦合引起铁磁层的局域磁矩发生偏转.使用量子绝热捷径技术反控制法在亚微米铁磁薄膜模型中提出了电场控制方案,实现了磁化向量方向快速反转,并对电场强度进行了最优化设计.另外,分析了铁磁薄膜形状各向同性和异性下的电场控制方案.相比于现有方法,该方案将磁化向量反转时间缩短了约一个数量级,并且具有更好的鲁棒性.

关键词：铁磁性材料磁化动力学自旋轨道耦合量子绝热捷径技术

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Cost effectiveness of nonpharmacological prevention programs for diabetes:A systematic review of trial-based studies

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Chronic Diseases and Translational Medicine 2024年第1期10卷 12-21页

作者： yongyi Xiong Zhaohua huo Samuel y.S.Wong Benjamin h.K.yip Jockey Club School of Public health and Primary Care Prince of Wales HospitalThe Chinese University of Hong KongShatinHong KongChina

Trial-based economic value of prevention programs for diabetes is *** aimed to review the cost-effectiveness of nonpharmacological interventions to prevent type-2 diabetes mellitus(T2DM)for high-risk *** electronic databases were searched up to March *** assessing both the cost and health outcomes of nonpharmacological interventions for people at high-risk of T2DM were *** quality of the study was assessed by the Consolidated health Economic Evaluation Reporting Standards 2022 *** primary outcome for synthesis was incremental cost-effectiveness ratios(ICER)for quality-adjusted life years(QALys),and costs were standardized in 2022 US *** synthesis was performed,considering different types and delivery methods of *** studies included five based on the US diabetes prevention program(DPP),six on non-DPP-based lifestyle interventions,four on health education,and one on screening plus lifestyle *** with usual care,lifestyle interventions showed higher potential of cost-effectiveness than educational *** lifestyle interventions,DPP-based programs were less cost-effective(median of ICERs:$27,077/QALy)than non-DPP-based programs(median of ICERs:$1395/QALy)from healthcare perspectives,but with larger decreases in diabetes ***,the cost-effectiveness of interventions was more possibly realized through the combination of different delivery *** interventions to prevent T2DM in high-risk populations are both cost-effective and feasible in various ***,economic evidence from low-and middle-income countries is still lacking,and interventions delivered by trained laypersons and combined with peer support sessions or mobile technologies could be potentially a cost-effective solution in such settings with limited resources.

关键词： economic evaluation nonpharmacological interventions pre-diabetes prevention

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