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ELECTRODE PERFORMANCES OF MELT-SPINNED AB_2 TYPE Zr-BASED HYDROGEN STORAGE ALLOYS

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中国有色金属学会会刊：英文版 1998年第4期8卷 75-78页

作者： Yang, XG Shu, KY Zhang, XB lei, yq Wang, QD Zhang, WK Lu, GL Zhejiang Univ Dept Mat Sci & Engn Hangzhou 310027 Peoples R China Zhejiang Univ Technol Dept Appl Chem Hangzhou 310014 Peoples R China Hangzhou Univ Cent Lab Hangzhou 310028 Peoples R China

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关键词： Zr based hydrogen storage alloy rapid solidification electrode performances

Factor-adjusted tests for generalized linear models with multimodal data:An application to breast cancer data

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Science China Mathematics 2025年第2期68卷 447-484页

作者： Dongyu Li lei Wang School of Statistics and Data Science KLMDASRLEBPSand LPMCNankai UniversityTianjin 300071China

With the advancement of modern scientific research,multimodal data is increasingly being collected from multiple sources or *** outcomes derived from generalized linear models with high-dimensional and multimodal covariates,we develop two distinct factor-adjusted tests to assess the significance of high-dimensional modality data and specific low-dimensional linear combinations of predictors from one or more modalities,***,we propose a factor-adjusted decorrelated score test to evaluate the significance of a single *** approach simultaneously transforms a high-dimensional test into a fixed low-dimensional one while addressing the impact of high-dimensional nuisance ***,we construct a factor-adjusted Wald test based on partial penalized estimation to assess the significance of certain low-dimensional combinations of variables from one or more *** limiting distributions of these two proposed tests are analyzed under both the null hypothesis and local alternatives to characterize the asymptotic type-I errors and *** finite sample performance of our proposed tests is evaluated through simulations and further demonstrated with a breast cancer dataset.

关键词： decorrelated score factor model high-dimensional data integrative analysis partial penalized Wald test

Phase structures and electrochemical hydrogen storage properties of V2.1TiNi0.4Zr0.06Mnx(x=0-0.20) alloys

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Phase structures and electrochemical hydrogen storage proper...

Liquid metal catalyst for ammonia synthesis at low pressure

第九届全国氢能学术会议

作者： F.Y Liu,L.X.Chen,Y.M.Jia,T.Ying,S.Q.Li,yq.lei Zhejiang University,China

Recently,the V-Ti-Ni based hydrogen storage electrode alloys with dual-phases structure have been attractive for their potential application in the Ni-MH battery because of their large hydrogen storage *** our previous study,it was found that VTiNiZr alloy showed a large initial discharge capacity and a poor cycling *** order to improve its electrochemical properties further,we chose Mn as the added alloying element and investigated the microstructure and electrochemical hydrogen storage properties of

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cnki会议

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Science China Materials 2025年第2期68卷 681-682页

作者： Ziyue Zeng Chenyang Wang lei Fu College of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072China The Institute for Advanced Studies Wuhan UniversityWuhan 430072China

Liquid metal(LM)has attracted immense interest as a novel catalyst in the past few years for its distinctive physicochemical properties,encompassing superior electrical and thermal conductivities,as well as exceptional fluidity characteristics at low temperatures[1].In contrast to conventional solid heterogeneous catalysts,the fluidic characteristics of liquid metal catalysts enhance the interaction between catalysts and reactants,boosting mass transfer at the reaction interface.

关键词： catalyst ammonia synthesis

Automatic and Rapid Throughflow-Based Optimal Design Method for Multi-Stage Axial-Flow Compressors

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Journal of Thermal Science 2025年第1期34卷 77-91页

作者： lei Fan ZHANG Xiawen JU Yaping ZHANG Chuhua Department of Fluid Machinery and Engineering School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049China State Key Laboratory for Strength and Vibration of Mechanical Structures Xi'an Jiaotong UniversityXi'an 710049China Production and Environmental Department China Huaneng Group.Co.Ltd.Beijing 100031China

Throughflow design has the advantages of less time consumption and large optimization space,and thus is the corner stone of advanced design system of multi-stage axial-flow *** majority of relevant studies were limited to the throughflow inverse designs,and quite few works have been till now devoted to the throughflow optimal *** this work,an automatic and rapid throughflow-based optimal design method is proposed for axial-flow compressors in which a throughflow inverse design solver is embedded in optimal genetic algorithm to improve the design efficiency of axial-flow *** types of design parameters in the throughflow inverse design of axial-flow compressors,i.e.,swirl and shroud curve,are simultaneously used to optimize both the blade shape and flow *** proposed method is validated by the redesign optimization of the benchmark axial-flow compressor NASA Stage 35,and the CFD predictions show that the throughflow-based optimization leads to 1.18% efficiency benefit at design *** proposed method is then utilized to the two-dimensional throughflow optimal design of a large-scale 6.5-stage axial-flow industrial *** optimal design results are confirmed by CFD predictions,indicating that the proposed method can effectively improve the design adiabatic efficiency of the compressors by 1.09% within a few minutes on desk-top *** throughflow design implications are also obtained for advanced axial-flow industrial *** work could enhance the capability of throughflow design method and has engineering application value to explore the throughflow optimization space of multi-stage axial-flow compressors.

关键词： multi-stage axial-flow compressor throughflow design empirical correlations genetic algorithm aerodynamic optimization

Attention Eraser and Quantitative Measures for Automated Bone Age Assessment

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Computers, Materials & Continua 2025年第1期82卷 627-644页

作者： Liuqiang Shu lei Yu College of Computer and Information Science Chongqing Normal UniversityChongqing401331China

Bone age assessment(BAA)aims to determine whether a child’s growth and development are normal concerning their chronological *** predict bone age more accurately based on radiographs,and for the left-hand X-ray images of different races model can have better adaptability,we propose a neural network in parallel with the quantitative features from the left-hand bone measurements for *** this study,a lightweight feature extractor(LFE)is designed to obtain the featuremaps fromradiographs,and amodule called attention erasermodule(AEM)is proposed to capture the fine-grained ***,the dimensional information of the metacarpal parts in the radiographs is measured to enhance the model’s generalization capability across images fromdifferent *** is trained and validated on the RSNA,RHPE,and digital hand atlas datasets,which include images from various racial *** model achieves a mean absolute error(MAE)of 4.42 months on the RSNA dataset and 15.98 months on the RHPE *** to ResNet50,InceptionV3,and several state-of-the-art methods,our proposed method shows statistically significant improvements(p<0.05),with a reduction in MAE by 0.2±0.02 years across different racial ***,t-tests on the features also confirm the statistical significance of our approach(p<0.05).

关键词： Bone age assessment attention eraser quantitative feature metacarpal bones

STIL enhances the development of lung adenocarcinoma by regulating the glycolysis pathway

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Oncology Research 2025年第1期33卷 123-132页

作者： lei WANG XIANJIN XIE Department of Respiratory Medicine Jen Ching Memorial HospitalSuzhou215300China Department of Respiratory Medicine Shandong Provincial Third HospitalJinan250010China

Background:To investigate SCL/TAL 1 interrupting locus(STIL)’s role and prognostic significance in lung adenocarcinoma(LUAD)progression,we examined STIL and E2 promoter binding factor 1(E2F1)expression and their impacts on LUAD prognosis using Gene Expression Profiling Interactive Analysis(GEPIA).Methods:Functional assays including CCK-8,wound-healing,5-ethynyl-2-deoxyuridine(EdU),Transwell assays,and flow cytometry,elucidated STIL and E2F1’s effects on cell viability,proliferation,apoptosis,and *** set enrichment analysis(GSEA)identified potential pathways,while metabolic assays assessed glucose ***:Our findings reveal that STIL and E2F1 are overexpressed in LUAD,correlating with adverse *** enhances cell proliferation,migration,and invasion,and suppresses apoptosis,activating downstream of *** E2F1 reversed the promotion effect of the STIL overexpression on cell viability and ***,STIL modulates glycolysis,influencing glucose consumption,lactate production,and energy balance in LUAD ***:Our model,incorporating STIL,age,and disease stage,robustly predicts patient prognosis,underscored STIL’s pivotal role in LUAD pathogenesis through metabolic *** comprehensive approach not only confirms STIL’s prognostic value but also highlights its potential as a therapeutic target in LUAD.

关键词： SCL/TAL1 interrupting locus(STIL) Lung adenocarcinoma E2 promoter binding factor 1 Glycolysis

PltcRB:a practical distributed randomness beacon with optimal amortized communication complexity

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Science China(Information Sciences) 2025年第2期68卷 269-284页

作者： Zheyi WU Haolin LIU lei WANG School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University

The distributed randomness beacon(DRB) is a crucial tool for continuously generating unpredictable, bias-resistant,and publicly verifiable random numbers on a regular basis. This is particularly useful for applications such as lotteries, electronic voting, and cryptographic parameter generation. However, existing studies either require complex communication or rely on a public bulletin board to meet security requirements. This brings a performance bottleneck when dealing with a large number of participants. This paper introduces a novel DRB protocol PltcRB based on timed commitments, eliminating the need for a public bulletin board. Our approach achieves optimal communication complexity of O(n) while maintaining the desired properties of a DRB protocol. The computation complexity is also O(n) when n is larger than the security parameter κ. These results demonstrate the practicality and performance of PltcRB, supported by our experimental analysis under various configurations.

关键词： timed commitment randomness beacon random number optimal communication complexity permissionlessłinebreak setting

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EFFECT OF ANNEALING ON THE ELECTRODE PERFORMANCESOF ZrTi(MnVCoNi)_2 HYDROGEN STORAGE ALLOY

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Acta Metallurgica Sinica(English Letters) 1999年第6期12卷 0-0,0-0+0-0页

作者： X.G, Yang Q.A. Zhang K. Y Shu YL. Du yq. lei and Q.D. Wang (Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China )W.K. Zhang(Department of Applied Chemistry, Zhejiang University of Technology, Hangzhou 3100l4, C

The annealing treatment was found to improve the cyclic stability but to degmde discharpe capacity, activation and high-rate discharpeability for the Ti-substituted AB2type alloy electrode. A larper polarization was found in the annealed alloy because of its poor discharpe kinetics resulted hem the structural homogeneity. At larae discharpe cumnts, the hydmpen dchsion in the bulk of the alloy was mpaofed as the mte-determining step. Based on the P ressure-composition isotherm measurement, we concluded that the decrease in discharpeability of the annealed alloy is owing to the low and flat pressure plateau, as well as the large hysteresis, but the hydrgen stomge density almost remains unchangeable after annealing.

关键词： AB_2 hydrogen storage alloy annealing electrochemical property homogeneity P-C-T