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Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： Jie wang Wei wang Xuheng Chen Junfang Bao Qiuyue Hao Heng Zheng Runsheng Xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model

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simulation Study of Potential Impacts of Tidal Farm in the Eastern Waters of Chengshan Cape, China

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Journal of Ocean University of China 2019年第5期18卷 1041-1050页

作者： LIU Xiaodong yuan Peng wang Shujie yuan Shuai TAN Junzhe si Xiancai College of Engineering Ocean University of ChinaQingdao 266100China Ocean Engineering Key Laboratory of Qingdao Qingdao 266100China

The sea area east of Chenshan Cape has peak tidal current flows that exceed 2.3 m s^-1,which make it a promising site for the development of tidal current *** these resources can be exploited,a comprehensive assessment is needed of the potential environmental impacts of the extraction of this *** this paper,we describe our construction of a three-dimensional hydrodynamic model of the waters near Chengshan Cape,and verify the performance of the model using continuous data measured in *** modeled the potential impacts of the exploitation of these resources on the flow field by adding a momentum loss term in the governing equation of the *** results show that an assumed tidal farm with an estimated power output of 20.34 MW would have a significant impact on the surrounding water level,especially next to the farm,where fluctuation could reach 6 *** maximum drop in the flow velocity in the wake of the farm was predicted to be more than 0.8 m s^-1,and this influence would extend 10 km downstream.

关键词： tidal current energy impact tidal farm Chenshan Cape hydrodynamics model Delft 3D

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Use of breakthrough experiment to evaluate the performance of hydrogen isotope separation for metal-organic frameworks M-MOF-74(M=Co, Ni, Mg, Zn)

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Science China Chemistry 2020年第7期63卷 881-889页

作者： Yanan si Wenjing wang El-Sayed M.El-Sayed Daqiang yuan State Key Laboratoty of Structural Chemistry Fujian Institute o f Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of the Chinese Academy of Sciences Beijing 100049China Chemical Refining Laboratory Refining DepartmentEgyptian Petroleum Research InstituteNasr CityCairoEgypt

The unique adsorption performance of metal-organic frameworks(MOFs) indicates a new direction for gas separation and purification. The low-temperature distillation, as a traditional technique for hydrogen isotope separation, is limited as it is a high energy-and cost-intensive process. Instead of utilizing such a conventional separation route, we use ordered microporous frameworks based on a physical adsorption mechanism to solve the challenge of hydrogen isotope separation. Herein we analyze M-MOF-74(M=Co, Ni, Mg, Zn), featuring a hexagonal channel about 11 ? and high density of open metal sites, for their ability to separate and purify deuterium from the hydrogen isotope mixture by dynamic column breakthrough experiments. Our results show that the combination of the strength of binding sites, density of coordinatively unsaturated metal sites and hydrogen isotope adsorption capacity of materials renders Co-MOF-74 as an optimal adsorbent for the capture of deuterium from hydrogen isotope mixtures in a simulated industrial process.

关键词： hydrogen isotope separation breakthrough experiment MOF-74

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滨水空间视觉特征的注意力和情绪效应——基于高校在校学生眼动追踪实验的证据

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中山大学学报（自然科学版）（中英文） 2025年第1期64卷 207-217页

作者：罗玮菁袁媛王琳婷吴丽娟中山大学地理科学与规划学院广东广州510006 广东省城市化与地理环境空间模拟重点实验室广东广州510006 广州市城市规划勘测设计研究院有限公司广东广州510060

随着社会竞争压力倍增以及城市生活高速运转,高校在校学生心理健康问题日益凸显。大量研究证实蓝绿空间具有多重健康效益。作为一种日常疗愈景观,蓝绿空间是促进心理健康的重要“自然处方”和环境资产。本研究基于视觉景观感知理论,采... 详细信息

随着社会竞争压力倍增以及城市生活高速运转,高校在校学生心理健康问题日益凸显。大量研究证实蓝绿空间具有多重健康效益。作为一种日常疗愈景观,蓝绿空间是促进心理健康的重要“自然处方”和环境资产。本研究基于视觉景观感知理论,采用虚拟现实眼动追踪实验,收集51名高校在校学生的眼动行为和情绪数据,探究滨水空间视觉特征对高校在校学生注意力分配和情绪反应的作用。结果显示:公共活动型水岸引起的注视行为和愉悦情绪显著更多,不同观赏视角之间滨水空间感知的瞳孔反应和愉悦情绪存在差异。不同水平植被密度、植被结构层次和水面可视度对注意力和情绪的影响存在显著差异,且在不同空间类型和观赏视角下显示出异质性特征,即滨水空间属性之间具有交互作用。研究有助于丰富蓝绿空间人地感知理论的实验性循证探索和差异化研究,结论可为人本尺度下滨水空间精细化场所营造提供参考,以期为我国青年友好滨水空间建设提供实证支撑。

关键词：滨水空间注意力情绪眼动实验青年友好

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Highly effective H_(2)/D_(2)separation in a stable Cu-based metalorganic framework

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Nano Research 2021年第2期14卷 518-525页

作者： Yanan si Xiang He Jie Jiang Zhiming Duan Wenjing wang Daqiang yuan State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Department of Chemistry College of SciencesShanghai UniversityShanghai 200444China University of the Chinese Academy of Sciences Beijing 100049China

A three-dimensional copper metal-organic framework with the rare chabazite(CHA)topology namely FJI-Y11 has been constructed with flexibly carboxylic ligand 5,5'-[(1,4-phenylenebis(methylene))bis(oxy)]diisophthalic acid(H_(4)L).FJI-Y11 exhibits high water stability with the pH range from 2 to 12 at temperature as high as 373 ***,FJI-Y11 also shows high efficiency of hydrogen isotope separation using dynamic column breakthrough experiments under atmospheric pressure at 77 *** to its excellent structural stability,FJI-Y11 possesses good regenerated performance and maintains high separation efficiency after three cycles of breakthrough experiments.

关键词： metal-organic framework(MOFs) hydrogen isotope separation breakthrough experiments

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湘潭市2010年-2016年重症手足口病病原学监测及流行特征分析

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中国卫生检验杂志 2017年第9期27卷 1311-1313页

作者：李巧玲肖娜陈思源王中秋湘潭市疾病预防控制中心湖南湘潭411100

目的了解湘潭市2010年-2016年手足口病重症患者的病原学类型及流行特征,为本地区的重症手足口病综合防控提供参考资料。方法收集2010年-2016年湘潭地区所有临床诊断为手足口病重症病例的标本,应用实时荧光RT-PCR技术检测肠道病毒通用型(... 详细信息

目的了解湘潭市2010年-2016年手足口病重症患者的病原学类型及流行特征,为本地区的重症手足口病综合防控提供参考资料。方法收集2010年-2016年湘潭地区所有临床诊断为手足口病重症病例的标本,应用实时荧光RT-PCR技术检测肠道病毒通用型(EV)、肠道病毒71型(EV71)、柯萨奇病毒A组16型(Cox A16)。结果 168例手足口病重症病例中,EV阳性率为91.07%,其中EV71型病毒占70.24%,Cox A16型病毒占2.8%,其他肠道病毒占18.45%;各型别之间阳性率整体差异有统计学意义(P<0.01);发病时间主要集中在4月-6月,占76.78%,与其他月份发生率差异有统计学意义(P<0.01);不同年龄组构成比总体差异有统计学意义(P<0.01),以1岁~组最多;不同样品阳性率总体差异有统计学意义(P<0.05),以混合样品阳性率最高。结论 EV71型是湘潭地区手足口病重症病例的主要致病病毒类型,其流行具有明显的年龄、季节界限。为提高重症手足口病实验室检出率,提倡对病例多部位联合采样。

关键词：重症手足口病肠道病毒71型柯萨奇病毒A组16型

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Dual modulation of homogeneous nanomaterialization and electrochemical activation enhancing zinc ion storage

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Science China Chemistry 2025年第01期 385-393页

作者： Jianwei wang Huan wang Kangning wang Wenhui wang Wenlin Zhang Yanzhong Zhen School of Chemistry & Chemical Engineering Yan'an University

Vanadium-based electrode materials are widely investigated,but the low specific capacity and slow electrochemical kinetics in aqueous zinc-ion batteries still limit their commercial ***,the VS2/Ca V4O9material with the morphology of nanoflower was synthesized by a one-step hydrothermal *** to the blocky structure of pure VS2material,the VS2/Ca V4O9material is composed of thinner homogeneous *** open structures could provide abundant electrochemical active sites and ion transport channels,and then promote the electrochemical reaction *** addition,they can also buffer the bulk strain during the reaction *** improve the utilization of vanadium elements,an in-situ electrochemical activation strategy is used to explore the storage performance of the VS2/Ca V4O9material,the different activation voltage range of 0.4–1.6 and 0.4–1.4 V are selected,*** with the longer activation plateau of activated-VS2,the VS2/Ca V4O9cathode could quickly reach the activation state in the range of 1.4–1.6 V and cause the release of additional Zn storage sites *** VS2/Ca V4O9cathode delivers a higher power density of 37,000 W kg-1and a significant energy density of 423 Wh *** the high current density of 15 A g-1,the VS2/Ca V4O9cathode still has a discharge capacity of 183.9m Ah g-1after 5,000 cycles,and the capacity decay rate per cycle is only 0.0042%.Continuous cyclic voltammetry （CV） curves,electrochemical impedance spectroscopy （EIS） measurements,density functional theory （DFT） calculation and galvanostatic intermittent titration technique （GITT） measurements demonstrate that the VS2/Ca V4O9cathode has a faster ion diffusion/charge transfer ***,the assembled flexible device has an excellent mechanical stability.

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Cerebral fat embolism following autologous fat injection in facial reconstruction:A case report

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World Journal of Clinical Cases 2025年第2期13卷 50-58页

作者： Xiu-Ying Chen Fa Shen Chang Cheng Yu-Han wang Wen-Chao Cheng De-Zhi yuan Wen Huang Department of Neurology Chongqing Emergency Medical CenterChongqing University Central HospitalChongqing 400000China Department of Neurology Xinqiao HospitalThe Army Medical University(Third Military Medical University)Chongqing 400000China

BACKGROUND Autologous fat injection in facial reconstruction is a common cosmetic *** cerebral fat embolism(CFE)as a complication is rare,it carries serious health *** SUMMARY We present a case of a 29-year-old female patient who developed acute CFE following facial fat filling *** the surgery,the patient experienced symptoms including headache,nausea,vomiting,and difficulty breathing,which was followed by neurological symptoms such as slurred speech and left-sided *** physical examination and auxiliary investigations,including blood tests,head and neck computed tomography angiography,and cranial magnetic resonance diffusion-weighted imaging,were performed upon *** clinical diagnosis was acute cerebral embolism following facial fat filling *** included measures to improve cerebral circulation,dehydration for intracranial pressure reduction,nutritional support,and rehabilitation therapy for left limb *** patient showed a significant improvement in symptoms after 2 weeks of *** recovered left limb muscle strength to grade 5,had clear speech,and experienced complete relief of *** Our case highlights the potential occurrence of severe complications in patients undergoing fat injection in facial *** prevent these complications,plastic surgeons should enhance their professional knowledge and skills.

关键词： Cerebral fat embolism Mechanical thrombectomy Thrombolysis Steroid therapy Symptomatic treatment Case report

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畜禽粪便沼液肥对苦瓜光合作用、产量的影响

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中国沼气 2017年第2期35卷 110-114页

作者：李然余雪标高刘杨青青崔喜博李思远王牌海南大学环境与植物保护学院海南海口570228

试验将畜禽粪便资源化利用为沼液,后续处理为沼液肥,研究不同浓度畜禽粪便沼液肥对苦瓜光合作用及产量的影响,并与空白和常规施肥进行对照。结果表明:畜禽粪便沼液肥对苦瓜光合作用和产量均有明显提高和促进作用,且随沼液肥施用浓度不... 详细信息

试验将畜禽粪便资源化利用为沼液,后续处理为沼液肥,研究不同浓度畜禽粪便沼液肥对苦瓜光合作用及产量的影响,并与空白和常规施肥进行对照。结果表明:畜禽粪便沼液肥对苦瓜光合作用和产量均有明显提高和促进作用,且随沼液肥施用浓度不同影响程度不同,随沼液肥浓度增加,对苦瓜光合作用和产量效果可以与常规施肥持平,甚至超过常规施肥的效果,说明畜禽粪便沼液肥在农业生产中是一种优良的液态肥,进一步说明将畜禽粪便资源化利用为沼液在实际应用是一种优良方式。

关键词：沼液肥苦瓜光合作用产量

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复杂越野场景无人履带平台3D语义占据预测方法

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北京理工大学学报 2025年第1期45卷 1-10页

作者：陈慧岩司璐璐王旭睿王文硕北京理工大学机械与车辆学院

为了理解和处理复杂越野场景中环境要素形状不规则、地形多变及路面属性复杂等问题，提出了一种基于多模态融合感知的3D语义占据预测方法.首先，基于图像和激光雷达融合网络获取初始3D语义标签；然后，对越野场景稀疏点云采用贝叶斯稠... 详细信息

为了理解和处理复杂越野场景中环境要素形状不规则、地形多变及路面属性复杂等问题，提出了一种基于多模态融合感知的3D语义占据预测方法.首先，基于图像和激光雷达融合网络获取初始3D语义标签；然后，对越野场景稀疏点云采用贝叶斯稠密化算法补全3D语义占据标签；最后，生成包含复杂环境要素大小、位置和语义信息的3D语义占据栅格地图.试验结果表明，该方法能够有效地提取和表示复杂越野环境中的3D信息，为复杂越野环境下无人履带平台的路径规划提供了更加准确和丰富的先验信息.

关键词：无人履带平台多模态融合 3D语义占据预测

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