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Acta Metallurgica Sinica(English Letters) 2024年第2期37卷 283-292页

作者： yong-chao gai Rui Zhang Chuan-yong Cui Zi-Jian Zhou Yi Tan Yi-Zhou Zhou Xiao-Feng Sun Key Laboratory of Materials Modification by Laser Ionand Electron Beams(Ministry of Education)School of Materials Science and EngineeringDalian University of TechnologyDalian116024China Shi-Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang110016China

The hot compression behavior and tensile strength after compression of a new Ni-Co-based superalloy produced using electron beam smelting layered(EBSL)solidification technology were *** compression tests were performed at temperatures of 1120℃and 1150℃,with strain rates of 1 s^(-1) and 0.01 s^(-1),reaching a true strain of *** strength was evaluated at room *** results revealed that this EBSL technology accelerates dynamic recrystallization(DRX),without compromising the strength of alloy.A significant correlation between the volume fraction of DRX and the strain rate was observed,with higher fractions at lower strain rates,leading to higher tensile ***,at the same strain rate,the specimens compressed at 1120℃exhibited higher tensile strength due to undissolvedγ′*** solution and aging heat treatment,the alloy maintained high tensile *** results suggested that the EBSL Ni-Co-based superalloy offers excellent prospects for practical applications.

关键词： Ni-Co-based superalloy Hot deformation Electron beam smelting Tensile strength

State-of-the-art advancements of transition metal oxides as photoelectrode materials for solar water splitting

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Rare Metals 2022年第7期41卷 2370-2386页

作者： gai-Li Ke Bi Jia Hui-chao He yong Zhou Ming Zhou State Key Laboratory of Environmental-Friendly Energy Materials School of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang 621010China Institute of Environmental Energy Materials and Intelligent Devices School of Metallurgy and Materials EngineeringChongqing University of Science and TechnologyChongqing 401331China Ecomaterials and Renewable Energy Research Center School of PhysicsNanjing UniversityNanjing 211102China Department of Chemistry State University of New YorkBinghamton NY 13902USA

Photoelectrochemical(PEC)water splitting can convert renewable solar energy into clean hydrogen *** are the core components of water-splitting *** the past 40 years,a series of binary and ternary transition metal oxides have been investigated as photo-electrode materials for solar water splitting,and numerous studies have been carried out to modify their water-split-ting *** satisfactory transition metal oxide photoelectrode materials have not been found,it is necessary to summarize the recent advancements in tran-sition metal oxide photoelectrode materials to guide future *** this review,the background and principle of PEC water splitting are *** semiconductor properties and modification progress of typical binary and ternary metal oxide photoanodes and photocathodes for solar water splitting are *** on the newly developed strategies in recent years,a brief outlook is presented for efficient PEC water splitting using transition metal oxide photoelectrodes.

关键词： Transition metal oxides Photoanodes Photocathodes Water splitting Review

Hydrogen sulfide reduces oxidative stress in Huntington's disease via Nrf2

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Neural Regeneration Research 2025年第6期20卷 1776-1788页

作者： Zige Jiang Dexiang Liu Tingting Li Chengcheng gai Danqing Xin Yijing Zhao Yan Song Yahong Cheng Tong Li Zhen Wang Department of Physiology School of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong ProvinceChina Department of Medical Psychology and Ethics School of Basic Medicine SciencesCheeloo College of MedicineShandong UniversityJinanShandong ProvinceChina Department of Neurosurgery Surgery Qingdao Municipal HospitalQingdaoShandong ProvinceChina

The pathophysiology of Huntington's disease involves high levels of the neurotoxin quinolinic acid. Quinolinic acid accumulation results in oxidative stress, which leads to neurotoxicity. However, the molecular and cellular mechanisms by which quinolinic acid contributes to Huntington's disease pathology remain unknown. In this study, we established in vitro and in vivo models of Huntington's disease by administering quinolinic acid to the PC12 neuronal cell line and the striatum of mice, respectively. We observed a decrease in the levels of hydrogen sulfide in both PC12 cells and mouse serum, which was accompanied by down-regulation of cystathionine β-synthase, an enzyme responsible for hydrogen sulfide production. However, treatment with NaHS(a hydrogen sulfide donor) increased hydrogen sulfide levels in the neurons and in mouse serum, as well as cystathionine β-synthase expression in the neurons and the mouse striatum, while also improving oxidative imbalance and mitochondrial dysfunction in PC12 cells and the mouse striatum. These beneficial effects correlated with upregulation of nuclear factor erythroid 2-related factor 2 expression. Finally, treatment with the nuclear factor erythroid 2-related factor 2inhibitor ML385 reversed the beneficial impact of exogenous hydrogen sulfide on quinolinic acid-induced oxidative stress. Taken together, our findings show that hydrogen sulfide reduces oxidative stress in Huntington's disease by activating nuclear factor erythroid 2-related factor 2,suggesting that hydrogen sulfide is a novel neuroprotective drug candidate for treating patients with Huntington's disease.

关键词： apoptosis cystathionine-β-synthase nuclear factor erythroid 2-related factor 2 Huntington's disease hydrogen sulfide mitochondrion neuroplasticity oxidative stress quinolinic acid reactive oxygen species

Geochemistry, Sr-Nd-Pb Isotopic Compositions and Zircon U-Pb Geochronology of Neoproterozoic Mafic Dyke in the Douling Complex, South Qinling Belt, China

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Journal of Earth Science 2020年第2期31卷 237-248页

作者： Tong Li Liang Liu Xiao-Ying Liao yong-Sheng gai Tuo Ma chao Wang State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi'an 710069China

Mafic dyke swarm is widely developed in Proterozoic continental *** Gangou diabase dyke from the Xixia area,intruded into the Douling complex of the South Qinling belt,yields zircon UPb age of 731 *** has low SiO2 content(49.02 wt.%-49.37 wt.%)and Mg^#(34.0–37.7)and shows characteristics of subalkaline tholeiite *** show highΣREE(155.5×10^-6–184.7×10^-6),weak negative Eu anomaly(δEu=0.88-0.93),slight depletion of Nb and Ta,and enrichment of *** major and trace element,Sr-Nd-Pb isotope and clinopyroxene compositions indicate that it originated from the partial melting of the asthenospheric mantle within-plate extension setting and was slightly contaminated by crust *** similarities of formation age,petrogenesis,source characteristic and tectonic setting for Gangou diabase with mafic dykes in Wudang Block and mafic volcanic rocks in Yaolinghe Group indicate that the South Qinling belt underwent strong continental extension in Neoproterozoic during 796–685 Ma most likely correspondence to the breaking-up of the Rodinia supercontinent.

关键词： Douling complex diabase dyke LA-ICP-MS zircon U-Pb dating Sr-Nd-Pb isotope Rodinia supercontinent break-up

Computation of rolling resistance caused by rubber hysteresis of truck radial tire

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第5期8卷 778-785页

作者： MA gai-ling XU Hong CUI Wen-yong College of Mechanical and Electrical Engineering Beijing University of Chemical Technology Beijing 100029 China

Applying the results of stress and strain calculated by 3D finite element model of truck radial tire 11.00R20, a MATLAB program used to compute rolling resistance of the tire caused by hysteresis rolling resistance (HRR) is worked out. The HRR distribution on different part of tire section, and the effects of speed, load, internal pressure and the width of the rim on HRR are analyzed. The analysis results showed that energy loss produced by tread rubber contributes the most part to HRR of the whole tire, and that to decrease the HRR, the hysteresis factor of the tread rubber should be reduced, and the distribution of the stress and strain on the section be optimized.

关键词： Truck radial tire Hysteresis rolling resistance (HRR) Finite element analysis (FEA) Hysteresis factor Tire structuredesign

采用感受野优化与渐进特征融合的图像超分辨率算法

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西安交通大学学报 2025年第1期59卷 136-147页

作者：吴洪伍盖绍彦达飞鹏东南大学自动化学院 210096南京东南大学复杂工程系统测量与控制教育部重点实验室 210096南京

针对现有基于深度学习的超分辨率方法存在参数冗余以及难以学习到全局上下文信息、重建图像高频特征能力欠佳的问题,提出一种基于感受野优化与渐进特征融合的超分辨率网络(RPSRnet),其在单幅图像重建方面实现了较高的性能。该网络采用... 详细信息

针对现有基于深度学习的超分辨率方法存在参数冗余以及难以学习到全局上下文信息、重建图像高频特征能力欠佳的问题,提出一种基于感受野优化与渐进特征融合的超分辨率网络(RPSRnet),其在单幅图像重建方面实现了较高的性能。该网络采用像素注意力机制与大感受野卷积相结合的方式,设计两条渐进路径将输入表征为不同层次的特征抽象,增强网络捕获上下文信息的能力,同时减少了网络参数冗余。通过分层卷积和多重感受野分支,在保持轻量卷积的前提下,于分层的多路径上学习不同尺度的融合特征,增强网络重建边缘细节和复杂纹理特征的能力。实验结果表明:相比于先进算法,所提算法在基准测试集Set5上的峰值信噪比达到32.47 dB,在测试集Set14上达到28.81 dB,优于现有的先进算法,且网络参数更少,实现了9%的参数缩减,从而验证了算法的有效性。

关键词：超分辨率注意力机制感受野优化特征融合

Classification and Early Warning Model of Terrorist Attacks Based on Optimal GCN

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Chinese Journal of Electronics 2020年第6期29卷 1193-1200页

作者： FENG yong gai Ming WANG Fuhai WANG Rongbing XU Xiaowei College of Information Liaoning University Department of Information Science University of Arkansas at Little Rock

Aiming at the lack of effective quantitative model to support the analysis of terrorist attacks,a multilayer depth Neural network(NN) Graph convolutional networks(GCN) model(NNGCN) was put forward to realize the classification and early warning of terrorist *** proposed model optimized the traditional GCN with the help of complex *** concept of link index was introduced into the NNGCN *** is combined with the important information between event *** information includes the similarity of events and link *** with the original unoptimized model,the improved model increased the classification accuracy of terrorist *** the model uses the node’s feature information and the link relationship of graph structure,it can also warn the sudden terrorist attacks effectively.

关键词： graph theory neural nets optimisation probability terrorism graph structure multilayer depth neural network graph convolutional network model optimal GCN early warning model terrorist attacks classification accuracy unoptimized model NNGCN model effective quantitative model Terrorist attack Correlation analysis Classification Early warning Link index GCN

High Strength Electrospun Single Copolyacrylonitrile(coPAN)Nanofibers with Improved Molecular Orientation by Drawing

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Chinese Journal of Polymer Science 2021年第2期39卷 174-180,I0006页

作者： Tang-Cheng Xu Dong-Hua Han yong-Mei Zhu gai-gai Duan Kun-Ming Liu Hao-Qing Hou Department of Chemistry and Chemical Engineering Jiangxi Normal UniversityNanchang 330022China Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China School of Metallurgical and Chemical Engineering Jiangxi University of Science and TechnologyGanzhou 341000China

High-performance carbon nanofibers are highly dependent on the performance of their precursors,especially polyacrylonitrile(PAN).In this work,the copolymer of PAN(coPAN)was synthesized for electrospinning.A self-assembling set-up was used for the stretching of single coPAN *** and Raman spectroscopies were used to characterize the chemical structure of coPAN *** electron microscopy(SEM)and atomic force microscopy(AFM)were used to monitor the morphology of single coPAN nanofibers under different drawing ***-tensile test was used to determine the mechanical properties of single coPAN *** results indicated that the drawing led to an increase in degree of molecular orientation along the fiber axis from 0.656 to 0.808,tensile strength from 304 MPa to 595 MPa,and modulus from 3.1 GPa to 12.4 *** research would provide fundamental information of high-performance electrospun coPAN nanofibers and offer opportunities for the preparation of high-performance carbon nanofibers.

关键词： Single nanofiber Electrospinning Polyacrylonitrile Molecular orientation Mechanical property

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Asian Journal of Andrology 2023年第1期25卷 132-136页

作者： Wei-Hao Shao Cai-Fang Zheng yong-chao Ge Xiao-Rui Chen Bo-Wen Zhang gai-Li Wang Wei-Dong Zhang Department of Epidemiology School of Public HealthZhengzhou UniversityZhengzhou 450001China Department of Urology The Third People's Hospital of ZhengzhouZhengzhou 450000China

A cross-sectional study was conducted to estimate the age-stratified normal levels and age-related changes in the risk predictors of benign prostatic hyperplasia(BPH)progression.A total of 4706 male participants aged 40 years or older in Zhengzhou(China)were *** values of the International Prostate Symptom Score(IPSS),prostate-specific antigen(PSA),prostate volume(PV),and postvoid residual urine volume(PVR)significantly increased with *** relationships between age and IPSS scores≥8(P for nonlinearity=0.046),PSA level≥1.6 ng ml^(-1),PV≥31 ml,or PVR≥39 ml(all P for nonlinearity1),regardless of the predictors of the IPSS score,PSA level,PV,or PVR;and the OR values increased ***,after the age of 61 years,the risk predictors related to BPH progression were positively correlated with age.

关键词： aging lower urinary tract symptoms postvoid residual urine volume prostate-specific antigen prostate volume

Numerical simulation of dewatering thick unconsolidated aquifers for safety of underground coal mining

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Mining Science and Technology 2009年第3期19卷 312-316页

作者： HANG Yuan ZHANG gai-ling YANG Guo-yong State Key Laboratory for Coal Resources and Mining Safety School of Resources and Geoscience China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China

With an increase of mining the upper limits under unconsolidated aquifers, dewatering of the bottom aquifer of the Quaternary system has become a major method to avoid water and sand *** the 8th District of the Taiping Coal Mine in south-western Shandong province, the bottom aquifer of the Quaternary system is moderate to excellent in water-yielding *** base rock above the coal seam is very thin in the concealed coal field of the Carboniferous and Permian ***, a comprehensive dewatering plan from both the ground surface and the panel was proposed to lower the groundwater level in order to ensure mining *** to the hydrogeologic conditions of the 8th District, we established a numerical model so that we could simulate the groundwater flow in the dewatering *** obtained the simulation parameters from previous data using backward modeling, such as the average coefficient of permeability of 12 m/d and the elastic storage coefficient of *** the same model, we predicted the movement of groundwater and water level variables and obtained the visible effect of the dewatering *** the overburden failure during mining, no water and/or sand inrush occurred because the groundwater level in the bottom aquifer was lowered to a safe water level.

关键词： mining under water body water and sand inrush unconsolidated aquifer drainage numerical simulation