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Carbon Resources Conversion 2018年第3期1卷 209-217页

作者： Zhi-bing Chang Mo Chu Chao Zhang Shu-xia Bai Sheng-tao Wang bao-man liu School of Chemical and Environmental Engineering China University of Mining and Technology(Beijing)Beijing 100083China

In this study,the Huadian oil shale(HD-R)and Balikun oil shale(BLK-R)were pyrolyzed in a fixed-bed pyrolyzer at 360–530℃.Based on the migration and conversion of organic carbon,their pyrolysis characteristics were investigated and *** aliphaticity of Huadian kerogen(HD-K)and Balikun kerogen(BLK-K)are 80.53%and 52.83%,*** HD-K contains more C=O,which will render the depolymerization and decomposition of kerogen to occur at low temperatures to produce volatile ***,the cumulative conversion of the Huadian shale oil is greater than the Balikun shale oil at 390–435℃.The aliphatic carbons of the BLK-K are mainly present as short methylene chains attached to aromatic *** will leave the kerogen matrix with the breakage of relatively weaker CeC bonds at β-sites from aromatic rings at medium *** contrast,aliphatic carbons of the HD-K are dominated by long aliphatic *** temperature is necessary to break other stronger CeC to form shale oil and gaseous species,which appears to make the oil accumulation conversion of BLK-R exceed that of HD-R at 450–510℃.

关键词： Oil shale Pyrolysis Kerogen Organic carbon Thermal bitumen Shale oil

Asymptotic false discovery control of the Benjamini-Hochberg procedure for pairwise comparisons

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Science China Mathematics 2025年第1期 223-252页

作者： Weidong liu Dennis Leung Qi-man Shao School of Mathematical Sciences Shanghai Jiao Tong University School of Mathematics and Statistics University of Melbourne Department of Statistics and Data Science SICMSouthern University of Science and Technology

In a one-way analysis-of-variance(ANOVA) model,the number of pairwise comparisons can become large even with a moderate number of *** by this,we consider a regime with a growing number of groups and prove that,when testing pairwise comparisons,the Benjamini-Hochberg(BH) procedure can asymptotically control false discoveries,despite the fact that the involved t-statistics do not exhibit the wellknown positive dependence structure required for exact false discovery rate(FDR) *** Tukey's perspective that the difference between the means of any two groups cannot be exactly zero,our main result provides control over the directional false discovery rate and directional false discovery proportion.A key technical contribution of our work is demonstrating that the dependence among the t-statistics is sufficiently weak to establish the convergence result typically required for asymptotic FDR *** analysis does not rely on conventional assumptions such as normality,variance homogeneity,or a balanced design,thereby offering a theoretical foundation for applications in more general settings.

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乳糜泻合并自身免疫性肝病10例临床特征

世界华人消化杂志 2017年第21期25卷 1968-1975页

作者：康改玲徐芸保洁刘香漫侯宇格李巧利郑州大学第一附属医院消化内科河南省郑州市450052

目的通过分析乳糜泻(celiac disease,CD)合并自身免疫性肝病(autoimmune liver disease,AILD)的临床特点及预后,提高对CD合并AILD的诊疗水平.方法回顾性分析2012-2016年在郑州大学第一附属医院确诊的10例合并AILD的CD患者和34例单纯CD... 详细信息

目的通过分析乳糜泻(celiac disease,CD)合并自身免疫性肝病(autoimmune liver disease,AILD)的临床特点及预后,提高对CD合并AILD的诊疗水平.方法回顾性分析2012-2016年在郑州大学第一附属医院确诊的10例合并AILD的CD患者和34例单纯CD患者的临床资料,以临床转归为终点事件,比较2组患者临床资料和预后.结果2组无症状、乏力、纳差、腹痛、腹泻、口干和/或眼干差异无统计学意义,白蛋白、凝血酶原时间活动度、钠离子、钾离子、钙离子及免疫球蛋白M、γ-球蛋白、血红蛋白和麦胶特异性抗体滴度差异无统计学意义,黄疸、体质量下降、谷丙转氨酶、谷草转氨酶、谷氨酰转肽酶、碱性磷酸酶、总胆红素,免疫球蛋白G等差异有统计学意义(P<0.05).合并AILD的患者中7例(7/10)经治疗后临床症状及生化检测恢复正常,3例(3/10)死亡,34例CD患者中33例(33/34)好转,1例(1/34)死亡.2组预后差异有统计学意义(P=0.032).结论CD合并AILD并非少见,以合并原发性胆汁性肝硬化(primary biliary cirrhosis,PBC)、自身免疫性肝炎(autoimmune hepatitis,AIH)+PBC型重叠综合征居多,其临床症状不典型,部分患者无胃肠道症状.严格无麦胶饮食(gluten-free diet,GFD)联合激素和/或硫唑嘌呤、熊去氧胆酸治疗有效;CD合并AILD和CD的临床表现、IgG水平存在差异性,CD合并AILD预后更差.

关键词：乳糜泻自身免疫性肝炎原发性胆汁性肝硬化重叠综合征

Improved mass relations of mirror nuclei

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Nuclear Science and Techniques 2024年第9期35卷 178-185页

作者： Cheng Xu man bao Department of Physics University of Shanghai for Science and TechnologyShanghai 200093China

In this study,we revisit the previous mass relations of mirror nuclei by considering 1/N-and 1/Z-dependent terms and the shell effect across a *** root-mean-squared deviation is 66 keV for 116 nuclei with neutron number N≥10,as com-pared with experimental data compiled in the AME2020 *** predicted mass excesses of 173 proton-rich nuclei,including 98 unknown nuclei,are tabulated in the Supplemental Material herein with competitive accuracy.

关键词： Nuclear mass Mirror nuclei Proton-rich nuclei

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Mesh-supported V2O5-WO3/TiO2 nanosheet array catalysts for efficient removal of NOx

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Tungsten 2025年第1期 100-111页

作者： Zhi-Qi Zhang liu Yang Wen Luo Vladimir An Jing Li bao-Dan liu School of Materials Science and Engineering Northeastern University Foshan Graduate School of Innovation Northeastern University Kizhner Research Center School of Advanced Manufacturing Technologies Tomsk Polytechnic University

The design and synthesis of vanadium-based denitration catalysts with low-temperature activity pose significant challenges in the field of toxic gas *** this study,we have developed a novel approach to fabricate highly efficient V2O5-WO3/TiO2monolithic mesh catalysts for NOxreduction at low ***,TiO2nanosheets with strong adhesion and large surface area were grown on Ti mesh using plasma electrolytic oxidation technology and hydrothermal ***,super-small traces of WO3and V2O5active nano-species were subsequently deposited on TiO2nanosheets using the deposition-precipitation *** to traditional ceramic-based V2O5-WO3/TiO2catalysts,our V2O5-WO3/TiO2monolithic mesh catalyst exhibits superior mechanical performance,excellent thermal conductivity,lower pressure drop,higher utilization of active components,and stronger synergistic ***,the V2O5-WO3/TiO2monolithic mesh catalysts exhibited excellent low-temperature catalytic activity with 98% of NOxconversion at 220℃,and remarkable long-term SO2tolerance and water resistance in the selective catalytic reduction（SCR） of NOxwith *** SCR reaction of tiny V2O5and WO3active species supported on TiO2nanosheets directly demonstrated to follow the Eley-Rideal mechanism by in situ infrared spectra.

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基于自适应续流比的混合式步进电机转矩脉动抑制方法

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陕西科技大学学报 2025年第1期43卷 142-151,202页

作者：王焜刘宝泉刘艺张浩铭刘俊陕西科技大学电气与控制工程学院陕西西安710021 西安西电高压开关有限责任公司陕西西安710018

混合式步进电机细分驱动存在较大的电流纹波,导致转矩脉动明显.通过分析H桥驱动电路的续流过程,提出一种基于自适应续流比的混合式步进电机转矩脉动抑制方法.该方法利用环型分配器产生的细分指令电流i ref与实际电流i相比较,以区分当前... 详细信息

混合式步进电机细分驱动存在较大的电流纹波,导致转矩脉动明显.通过分析H桥驱动电路的续流过程,提出一种基于自适应续流比的混合式步进电机转矩脉动抑制方法.该方法利用环型分配器产生的细分指令电流i ref与实际电流i相比较,以区分当前时刻所需的续流模式.在快速续流模式下,实时监测电流指令与实际电流的差值Δi ref,通过自适应系数k动态调节续流时间,直至电机相电流快速下降至给定电流i ref后切换至缓慢续流模式.对续流时长与快速续流占总续流时间的比例自适应调节以适应不同工况下步进电机的平稳运行,有效降低了转矩脉动.最后,搭建MATLAB/Simulink仿真平台并进行实验验证,结果表明,与传统混合续流控制相比,所提方法能够有效减小步进电机的转矩脉动.

关键词：混合式步进电机自适应续流比电流纹波转矩脉动

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Non-isothermal reduction process analysis of iron-bearing burden with charging iron coke hot briquette under simulated blast furnace conditions

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Journal of Iron and Steel Research International 2022年第5期29卷 741-750页

作者： Hong-tao Wang man-sheng Chu Ji-wei bao Zheng-gen liu Hong-ming Long School of Metallurgy Engineering Anhui University of TechnologyMa’anshan243032AnhuiChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang110819LiaoningChina School of Metallurgy Northeastern UniversityShenyang110819LiaoningChina Key Laboratory of Metallurgical Emission Reduction&Resources Recycling Anhui University of TechnologyMinistry of EducationMa’anshan243032AnhuiChina

Highly reactive iron coke hot briquette(ICHB)prepared by carbonizing the agglomerate of iron-bearing substance and blended coals is regarded as an alternative fuel to mitigate carbon emission and energy consumption of blast ***,the reduction process of iron-bearing burden is extremely crucial for blast furnace *** effects of ICHB on the non-isothermal reduction process of iron-bearing burden with different reduction properties were thus experimentally studied under the conditions of simulated blast furnace lump zone(below 1100°C),and the related mechanism was discussed and *** results showed that the non-isothermal reduction process of iron-bearing burden is promoted by adding *** the charging ratio of ICHB is increased from 0%to 30%,the reduction degree of pellet is increased from 22.91%to 36.62%,but the increased amplitude is leveled ***,the reduction degree of sinter is raised from 35.10%to 93.33%.It is also indicated that the promotion effect of ICHB on the non-isothermal reduction of iron-bearing burden depends on the reduction property of *** with the burden with poor reduction performance(such as pellet 1),the promotion is more significant for the burden with good reduction property(such as sinter 1)since the reduction reaction of iron oxide in iron-bearing burden and the gasification of carbon in ICHB are remarkably reinforced each *** practical application of ICHB in blast furnace should be utilized with highly reductive iron-bearing burden.

关键词： Iron coke hot briquette Non-isothermal reduction Iron-bearing burden Low carbon emission Blast furnace

Evolution behavior and mechanism of iron carbon agglomerates under simulated blast furnace smelting conditions

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Journal of Iron and Steel Research International 2023年第9期30卷 1714-1731页

作者： Ji-wei bao man-sheng Chu Zheng-gen liu Wei Lv Dong Han Li-feng Zhang School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina Institute for Frontier Technologies of Low-Carbon Steelmaking Northeastern UniversityShenyang 110819LiaoningChina Liaoning Province Engineering Research Center for Technologies of Low-Carbon Steelmaking Northeastern UniversityShenyang 110819LiaoningChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819LiaoningChina

Iron carbon agglomerates(ICA)are the composite burden for low-carbon blast furnace(BF)*** order to optimize the reactivity of ICA according to the evolution characteristics of ICA in the BF smelting process,the evolution behavior and mechanism of different reactive ICA under simulated BF smelting conditions were *** results show that the existence of more sillimanite and aluminosilicate and less active sites of metallic iron will weaken gasification reaction and carburization ability of ICA-1(containing 10%iron ore).It weakens the promoting effect of ICA-1 on the reduction,softening,and melting of ferrous burdens and the dripping of *** aluminosilicate with a high melting point decreases,the low melting point slag phase and Fe–Si alloy increase,and many active sites of metallic iron exist,which strengthen the gasification reaction and carburization ability of ICA-2(containing 30%iron ore).The promoting effect of ICA-2 on the reduction,softening,and melting of ferrous burdens and the dripping of slag-iron is significantly *** gasification reaction capacity of ICA-3(containing 35%iron ore)is reduced,and the improvement in ICA-3 on the softening–melting performance of mixed burdens is *** appropriate proportion of iron ore in ICA is about 30%.

关键词： Iron carbon agglomerate Reactivity Evolution behavior Evolution mechanism Blast furnace Softening–melting–dripping property

CytoBrain:Cervical Cancer Screening System Based on Deep Learning Technology

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Journal of Computer Science & Technology 2021年第2期36卷 347-360页

作者： Hua Chen Juan liu Qing-man Wen Zhi-Qun Zuo Jia-Sheng liu Jing Feng bao-Chuan Pang Di Xiao Institute of Artificial Intelligence School of Computer ScienceWuhan UniversityWuhan 430072China Landing Artificial Intelligence Center for Pathological Diagnosis Wuhan UniversityWuhan 430072China

Identification of abnormal cervical cells is a significant problem in computer-aided diagnosis of cervical *** this study,we develop an artificial intelligence(AI)system,named CytoBrain,to automatically screen abnormal cervical cells to help facilitate the subsequent clinical diagnosis of the *** system consists of three main modules:1)the cervical cell segmentation module which is responsible for efficiently extracting cell images in a whole slide image(WSI);2)the cell classification module based on a compact visual geometry group(VGG)network called CompactVGG which is the key part of the system and is used for building the cell classifier;3)the visualized human-aided diagnosis module which can automatically diagnose a WSI based on the classification results of cells in it,and provide two visual display modes for users to review and *** model construction and validation,we have developed a dataset containing 198952 cervical cell images(60238 positive,25001 negative,and 113713 junk)from samples of 2312 adult *** CompactVGG is the key part of CytoBrain,we conduct comparison experiments to evaluate its time and classification performance on our developed dataset and two public datasets *** comparison results with VGG11,the most efficient one in the family of VGG networks,show that CompactVGG takes less time for either model training or sample *** with three sophisticated deep learning models,CompactVGG consistently achieves the best classification *** results illustrate that the system based on CompactVGG is efficient and effective and can support for large-scale cervical cancer screening.

关键词： cervical cancer screening visual geometry group(VGG) deep learning artificial intelligence(AI) classification

Adsorption properties of Ⅴ(Ⅳ) on resin-activated carbon composite electrodes in capacitive deionization

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International Journal of Minerals,Metallurgy and Materials 2021年第11期28卷 1777-1787页

作者： Xiao-man Tian Shen-xu bao Yi-min Zhang School of Resources and Environmental Engineering Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Mineral Resources Processing and Environment Wuhan University of TechnologyWuhan 430070China Hubei Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources Hubei Provincial Engineering Technology Research Center of High Efficient Cleaning Utilization for Shale Vanadium ResourceWuhan University of Science and TechnologyWuhan 430081China

Composite electrodes prepared by cation exchange resins and activated carbon(AC)were used to adsorb Ⅴ(Ⅳ)in capacitive deionization(CDI).The electrode made of middle resin size(D860/AC M)had the largest specific surface area and mesoporous content than two other composite *** analysis showed that D860/AC M presents higher specific capacitance and electrical double layer capacitor than the others,and significantly lower internal diffusion ***,D860/AC M exhibits the highest adsorption capacity and rate of Ⅴ(Ⅳ)among three *** intra-particle diffusion model fits well in the initial adsorption stage,while the liquid film diffusion model is more suitable for fitting at the later *** pseudo-second-order kinetic model is suited for the entire adsorption *** adsorption of Ⅴ(Ⅳ)on the composite electrode follows that of the Freundlich *** analysis indicates that the adsorption of Ⅴ(Ⅳ)is an exothermic process with entropy reduction,and the electric field force plays a dominant role in the CDI *** work aims to improve our understanding of the ion adsorption behaviors and mechanisms on the composite electrodes in CDI.

关键词： capacitive deionization composite electrode vanadium electrochemical behavior kinetics

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