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Multistage desulfurization mechanism to reduce sulfur content of high ferrotitanium prepared using thermite method

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Rare Metals 2021年第8期40卷 2313-2319页

作者： chu cheng Zhi-He Dou Ting-An Zhang Yu-Lai Song Collaborative Innovation Center of Nonferrous Metals Henan Province School of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang471003China Key Laboratory of Ecological Utilization of Multi-metal Intergrown Ores of Ministry of Education Northeastern UniversityShenyang110819China

High ferrotitanium is used as a deoxidizer and alloying agent in steelmaking processes and is mainly produced using high-cost remelting *** thermite method is a simple and low-cost method for preparing low ***,the high levels of S,Al,and O residues in the product severely restrict its applicability in the low-cost preparation of good-quality high *** this study,a novel multistage deep reduction method for preparing high-quality high ferrotitanium is proposed,and the multistage desulfurization mechanism is systematically *** results indicate that multistage desulfurization is an effective method for reducing the S content of high ferrotitanium prepared via the thermite *** the strong desulfurization stage,Ti_(2)S reacts with CaO at the slag-metal interface and produces *** S content decreases,while the O content increases,with the increase of CaO in the CaO-Al_(2)O_(3)-based *** the deep desulfurization,Ti_(2)S is deeply reduced by the Ca and produces CaS,thus further reducing the S *** S content decreases with the incremental addition of Ca and can be reduced to 0.035 wt%after multistage desulfurization.

关键词： Multistage desulfurization High ferrotitanium Thermite method Multistage reduction Deep reduction

A review of solid-state lithium metal batteries through in-situ solidification

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Science China Chemistry 2024年第1期67卷 67-86页

作者： Pan Xu Zong-Yao Shuang Chen-Zi Zhao Xue Li Li-Zhen Fan Aibing Chen Haoting Chen Elena Kuzmina Elena Karaseva Vladimir Kolosnitsyn Xiaoyuan Zeng peng Dong Yingjie Zhang Mingpei Wang Qiang Zhang Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093China Institute of Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China College of Chemical and Pharmaceutical Engineering Hebei University of Science and TechnologyShijiazhuang 050018China Ordos Carbon Neutral Research and Application Co. Ltd.Ordos City 017010China Ufa Institute of Chemistry UFRC RAS Ufa 450054Russia Institute for Carbon Neutrality Tsinghua UniversityBeijing 100084China Shanxi Research Institute for Clean Energy Tsinghua UniversityTaiyuan 030032China

High-energy-density lithium metal batteries are the next-generation battery systems of choice,and replacing the flammable liquid electrolyte with a polymer solid-state electrolyte is a prominent conduct towards realizing the goal of high-safety and high-specific-energy ***,the inherent intractable problems of poor solid-solid contacts between the electrode/electrolyte and the growth of Li dendrites hinder their practical *** in-situ solidification has demonstrated a variety of advantages in the application of polymer electrolytes and artificial interphase,including the design of integrated polymer electrolytes and asymmetric polymer electrolytes to enhance the compatibility of solid–solid contact and compatibility between various electrolytes,and the construction of artificial interphase between the Li anode and cathode to suppress the formation of Li dendrites and to enhance the high-voltage stability of polymer *** review firstly elaborates the history of in-situ solidification for solid-state batteries,and then focuses on the synthetic methods of solidified ***,the recent progress of in-situ solidification technology from both the design of polymer electrolytes and the construction of artificial interphase is summarized,and the importance of in-situ solidification technology in enhancing safety is ***,prospects,emerging challenges,and practical applications of in-situ solidification are envisioned.

关键词： in-situ solidification polymer electrolyte artificial solid electrolyte interphase rechargeable lithium metal batteries dendrite-free lithium metal anode

基于SPR的液晶填充双D型PCF双参量传感器设计

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光学学报 2024年第9期44卷 247-257页

作者：范振凯孟俊皓褚世超河北科技大学信息科学与工程学院河北石家庄050018

提出了一种基于表面等离子体共振(SPR)原理的液晶填充的双D型光子晶体光纤(PCF)传感器,用于温度和折射率(RI)的双重检测。选用金作为金属对PCF中的两个大开环以及第二包层的4个气孔进行镀膜以激发SPR现象,实现了外部传感与内部传感的结... 详细信息

提出了一种基于表面等离子体共振(SPR)原理的液晶填充的双D型光子晶体光纤(PCF)传感器,用于温度和折射率(RI)的双重检测。选用金作为金属对PCF中的两个大开环以及第二包层的4个气孔进行镀膜以激发SPR现象,实现了外部传感与内部传感的结合,并进一步增强了SPR效应。为了实现温度与RI的双重检测,将温敏材料液晶E7填入中央大气孔形成纤芯,进而提升温度传感性能,通过上下两侧的大开环与待测分析液的接触实现折射率传感。使用全矢量有限元法,在完美匹配层条件下对传感性能进行了分析,并研究了中央液晶孔、小气孔及普通气孔的大小对传感性能的影响。仿真结果表明,所设计的传感器在温度为15~50℃、折射率为1.48~1.55的检测范围内具有良好的温度和RI传感性能。

关键词：传感器光子晶体光纤表面等离子体共振双重检测传感器双D型液晶

Efficacy and safety of targeted therapy plus immunotherapy combined with hepatic artery infusion chemotherapy (FOLFOX) for unresectable hepatocarcinoma

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World Journal of Gastroenterology 2024年第17期30卷 2321-2331页

作者： Zhi-peng Lin Xiao-Long Hu Du Chen Da-Bei Huang Xu-Gong Zou Hai Zhong Sheng-Xiang Xu Yuan Chen Xiao-Qun Li Jian Zhang Department of Interventional Medicine Zhongshan People’s HospitalZhongshan 528400Guangdong ProvinceChina

BACKGROUND The advent of cutting-edge systemic therapies has driven advances in the treatment of hepatocellular carcinoma(HCC),and therapeutic strategies with multiple modes of delivery have been shown to be more efficacious than ***,the mechanisms underlying this innovative treatment modality have not been *** To evaluate the clinical efficacy of targeted therapy plus immunotherapy combined with hepatic arterial infusion chemotherapy(HAIC)of FOLFOX in patients with unresectable *** We enrolled 53 patients with unresectable HCC who received a combination of targeted therapy,immunotherapy,and HAIC of FOLFOX between December 2020 and June 2021 and assessed the efficacy and safety of the treatment *** The objective response rate was 60.4%(32/53),complete response was 24.5%(13/53),partial response was 35.9%(19/53),and stable disease was 39.6%(21/53).The median duration of response and median progression-free survival were 9.1 and 13.9 months,*** surgical conversion rate was 34.0%(18/53),and 1-year overall survival was 83.0%without critical complicating diseases or adverse events(AEs).CONCLUSION The regimen of HAIC of FOLFOX,targeted therapy,and immunotherapy was curative for patients with unresectable HCC,with no serious AEs and a high rate of surgical conversion.

关键词： Hepatocellular carcinoma Hepatic arterial infusion chemotherapy Targeted therapy Immunotherapy Adverse events

中国式现代化、要素市场化配置改革与城乡融合

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技术经济与管理研究 2024年第4期 77-82页

作者：黄楚刁东莞理工学院机械工程学院广东东莞523808 中南大学马克思主义学院湖南长沙410083

选取2012—2022年中国省级面板数据,探究中国式现代化对城乡融合的影响,以及要素市场化配置改革在其中的作用机理。研究发现:中国式现代化可显著助推城乡融合发展;人口融合、经济融合、生态融合、空间融合与社会融合是中国式现代化影响... 详细信息

选取2012—2022年中国省级面板数据,探究中国式现代化对城乡融合的影响,以及要素市场化配置改革在其中的作用机理。研究发现:中国式现代化可显著助推城乡融合发展;人口融合、经济融合、生态融合、空间融合与社会融合是中国式现代化影响城乡融合的传导路径。门槛效应分析发现,中国式现代化对城乡融合的积极效能受要素市场化配置改革的制约。耦合协调性检验得出,中国式现代化与要素市场化配置改革的耦合协调度越高,越能带动城乡融合发展。因此,应深化多领域创新改革,驱动中国式现代化发展;强化要素市场化配置,扩大创新要素流通范围;构建要素自由流通网络,协同推进中国式现代化与要素市场化配置,最终助力城乡高质量融合发展。

关键词：中国式现代化城乡融合要素市场化配置改革新型城镇化

Insights into reservoir-triggered landslides development and its influence factors in the Three Gorges Reservoir area， China

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Journal of Earth Science 2024年

作者： Shi-lin Luo Da Huang Jian-bing peng Zhou-zhou Xie Zhi-yu Yang Roberto Tomás College of Civil Engineering， Changsha University College of Civil Engineering and Geomatics， Chang'an University Hunan Provincial Key Laboratory for Big Data Smart Application of Natural Disaster Risks Survey of Highway Engineering School of Civil Engineering， Central South University Dpto.de Ingeniería Civil.Escuela Politécnica Superior de Alicante.Universidad de Alicante.

More than 5000 landslides or potential landslides have been triggered in the Three Gorges Reservoir （TGR） area since the impoundment in 2003. Aimed at investigating the reservoir-induced landslides spatiotemporal and size distribution and its influence factors in the TGR by taking 790 landslides as statistical samples. The landslides exhibit significant regional and sub-regional differences in spatially， and numerous landslides occurred at the initial three impoundment stages and the corresponding following 2–3 cycles of reservoir operations， but the landslide frequency decreased dramatically after 2010 in temporally. The relationship between landslide development and topographical， geological as well as hydrological factors were analyzed qualitatively. The reservoir-induced landslides in TGR area exhibit self-organized criticality and the rollover is nearly 2.5×104m2， which could not attribute to the data missing but the coupled influences imposed by affecting factors. Both the double Pareto and inverse gamma functions are more suitable than the power-law function to present the landslide size characteristics. In term of the fitting precious， the adaptability of the inverse gamma function is better if the landslide inventories are limited. The research results provide foundation for the landslide susceptibility maps and hazard risk assessment.

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低压Si MOSFETs对SiC/Si级联器件短路特性的影响

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电子科技大学学报 2024年第2期53卷 174-179页

作者：周郁明楚金坤周伽慧安徽工业大学安徽省高校电力电子与运动控制重点实验室马鞍山243002

由低压硅金属-氧化物-半导体场效应晶体管(Silicon Metal-Oxide-Semiconductor Field-Effect Transistor, Si MOSFET)和碳化硅结型场效应晶体管(Silicon Carbon Junction Field-Effect Transistor, SiC JFET)构成的SiC/Si级联(Cascode)器件,兼具了低压Si MOSFET易于驱动、SiC JFET高耐压低损耗等优点。该文采用实验和数值模拟的方式研究了低压Si MOSFET对SiC/Si级联器件短路特性的影响,结果表明,在短路过程中SiC/Si级联器件中的SiC JFET最高温度比单独的SiC JFET短路时的最高温度低,SiC/Si级联器件的短路失效时间得到了延长,并且随着Si MOSFET额定电压的增加,SiC/Si级联器件短路失效延长的时间也在增加。

关键词：泄漏电流 SiC/Si级联器件 SiC JFET 短路失效

Dynamic characteristics of coal specimens with varying static preloading levels under low-frequency disturbance load

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Journal of Central South University 2024年第8期31卷 2644-2657页

作者： WEN Xiao-ze FENG Guo-rui GUO Jun YU Lu-yang QIAN Rui-peng ZHANG Jie ZHANG peng-fei FENG Wen-ming College of Mining Engineering Taiyuan University of TechnologyTaiyuan 030024China Key Laboratory of Shanxi Province for Mine Rock Strata Control and Disaster Prevention Taiyuan University of TechnologyTaiyuan 030024China State Key Laboratory of Hydroelectric and Engineering Tsinghua UniversityBeijing 100084China

The mechanical properties of residual coal pillars under the influence of upward mining disturbances significantly affect the safety of residual mining activities on working *** study conducted low-frequency disturbance dynamic uniaxial compression tests on coal specimens using a self-developed dynamic-static load coupling electro-hydraulic servo system,and studied the strength evolutions,surface deformations,acoustic emission(AE)characteristic parameters,and the failure modes of coal specimens with different static preloading levels were *** disturbance damage is positively correlated with the coal specimen static preload ***,the cumulative AE count rates of the initial accelerated damage stage for the coal specimens with static preloading level of 60%and 70%of the uniaxial compressive strength(UCS)were 2.66 and 3.19 times that of the 50%UCS specimens,***,this behaviour manifested as a decrease in the compressive strength,and the mean strengths of the disturbance-damaged coal specimens with 60%and 70%of UCS static preloading decreased by 8.53%and 9.32%,respectively,compared to those of the specimens under pure static *** crack sources,such as the primary fissures,strongly control the dynamic response of the coal *** difference between the dynamic responses of the coal specimens and that of dense rocks is significant.

关键词： low-frequency disturbance dynamic response coal specimens static preloading level

Knockout of OsSPL10 confers enhanced glufosinate resistance in rice

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Plant Communications 2024年第2期5卷 7-10页

作者： Jin-Qiu Xia Qin-Yu Liang Da-Yu He Zheng-Yi Zhang Jie Wu Jing Zhang Ping-Xia Zhao Zi-Sheng Zhang cheng-Bin Xiang Division of Life Sciences and Medicine Division of Molecular&Cell BiophysicsHefei National Science Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaThe Innovation Academy of Seed DesignChinese Academy of SciencesHefeiAnhui Province 230027China

Dear Editor,Rice(Oryza sativa L.)is one of the world’s major food crops,feeding more than half of the global *** reduce labor and production costs,direct seeding is becoming popular for rice cultivation,but weeds have become a serious problem(Jin et al.,2022).Chemical herbicides are one of the most effective ways to control ***,the development of herbicide-resistant rice has great significance for modern rice production.

关键词： crops population. weed