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Leaching behavior and mineralogical evolution of vanadium released from sodium roasted-acid leaching tailing of vanadium slag

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Journal of Iron and Steel Research International 2022年第5期29卷 772-782页

作者： Bao Liu Jin Li qian-qian ren Shuang Cai Xue Yang Ya-nan Zeng Jun-guo Li College of Metallurgy and Energy North China University of Science and TechnologyTangshan063210HebeiChina

The sodium roasted-acid leaching tailing(SRALT)of vanadium slag with a certain amount of vanadium exhibits potential environmental *** investigate the leaching behavior of vanadium from the SRALT,neutral batch leaching tests were *** evolution of vanadium concentration,pH,redox potential(Eh),dissolved oxygen,and conductivity as a function of time was *** diagrams of V–H2O system with different vanadium concentrations were obtained to identify the ionic speciation of vanadium in leachate.X-ray diffraction,X-ray photoelectron spectroscopy,field emission-scanning electron microscopy,and thermogravimetry–differential scanning calorimetry analysis were conducted to investigate the mineralogical evolution of the SRALT during the leaching *** was found that the major minerals of the original SRALT are titanomagnetite,spinel,olivine,and *** valence states of V existing in the original SRALT are V^(3+)and V^(5+).The pH and Eh values of the obtained leachates are 10.00–10.58 and(−43)–(+67)mV,*** this pH and Eh region,the released vanadium is mainly present as HVO_(4)^(2−).The FeOOH and CaCO_(3)would form during the leaching *** HVO_(4)^(2−)would be mainly adsorbed by the FeOOH and slightly incorporated into the CaCO_(3),resulting in the decline in the vanadium *** vanadium concentration above 27 mg L^(−1)and the dissolved oxygen value below 5.0 mg L^(−1)can be obtained after a short leaching *** a V(V)-releasing and oxygen-depleting substance,the leaching toxicity of the SRALT should not be ignored.

关键词： Vanadium Vanadium slag Tailing Leaching toxicity Mineralogical analysis

Structure characterization and grinding performance of gas-quenched steel slag abrasive

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Journal of Iron and Steel Research International 2021年第4期28卷 383-390页

作者： Jing-jing Pei Jin-hu Wu Wen-qing Huo Yu-zhu Zhang Hong-wei Xing qian-qian ren College of Metallurgy and Energy North China University of Science and TechnologyTangshan 063210HebeiChina

Gas-quenched steel slag abrasive was obtained by gas quenching with high-temperature liquid steel slag as raw *** phase composition,thermal properties,micromorphology,magnetic properties,and mechanical properties of the par-ticles were characterized by using an X-ray diffractometer,a differential thermal analyzer,a scanning electron microscope,a magnetic property meter,and a compressive strength tester,*** show that the gas-quenched steel slag abrasive is a monodisperse regular *** compressive strength of a single particle is 34 *** product is ferromag-netic and has good thermal *** micromorphology and flatness of the workpiece before and after grinding with the gas-quenched steel slag abrasive were measured using a three-dimensional *** reveal that the surface roughness of the workpiece is reduced to 1.526,0.623,and 0.227μm after grinding for 5,10,and 20 min,*** surface profile fluctuation decreases to±1.0μ***,the workpiece surface tends to be flat without obvious scratches.

关键词： Gas-quenched steel slag abrasive Thermal property Magnetic property Compressive strength Surface roughness Micromorphology

Crystallization behavior of blast furnace slag modified by adding iron ore tailing

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Journal of Iron and Steel Research International 2017年第6期24卷 601-607页

作者： qian-qian ren Yu-zhu Zhang Yue Long Shao-sheng Chen Zong-shu zou Jie Li Chen-guang Xu School of Metallurgy Northeastern University Shenyang 110819 Liaoning China State Key Laboratory of Advanced Steel Processes and Products Central Iron and Steel Research Institute Beijing 100081 China College of Metallurgy and Energy North China University of Science and Technology Tangshan 063009 Hebei China

Blast furnace （BF） slag is a by-product of the ironmaking process and could be utilized to manufacture slag fiber by adding iron ore tailing. The crystallization behavior of the modified BF slag is significant to the fi- brosis process. To investigate the influence of basieity on the crystallization behavior, BF slag was modi- fied by adding iron ore tailing at room temperature and melted at 1 500 ℃. FactSage simulation, X-ray dif- fraction, scanning electron microscopy backscattered electron imaging coupled to an energy dispersive spectrometer, and hot thermocouple technique analysis were performed to explore the crystallization be- havior of the modified BF slag during the cooling process. It was found that the initial crystallization tem- perature increased with the increase in basicity. Melilite, anorthite, clinopyroxene, and wollastonite could be generated during the cooling process as basicity ranged from 0.7 to 0.9. Spinel could be found as one of the phases; however, wollastonite disappeared under a basicity of 1.0. The initial crystallization tempera- ture was controlled by the crystallization of melilite during the cooling process when the basicity of the modified BF slag ranged from 0. 7 to 1.0. Moreover, the cooling rate could also influence the crystalliza- tion of the modified BF slag.

关键词： Crystallization behaviorModified blast furnaceslagBasicityInitial crystallizationtemperatureIron ore tailing

Human leukocyte antigen and donor-specific antibodies in liver transplantation

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World Journal of Gastroenterology 2025年第2期31卷 157-160页

作者： Qimudesiren Sha-Na Chen Li-ren qian School of Clinical Medicine Inner Mongolia Minzu UniversityTongliao 028000Inner Mongolia Autonomous RegionChina Department of Hematology International Mongolian Hospital of Inner MongoliaHohhot 010065Inner Mongolia Autonomous RegionChina Senior Department of Hematology The Fifth Medical Center of PLA General HospitalBeijing 100071China The Second School of Clinical Medicine Southern Medical UniversityGuangzhou 510515Guangdong ProvinceChina

In this article,we comment on an article published in a recent issue of the World Journal of *** specifically focus on the roles of human leukocyte antigen(HLA)and donor-specific antibodies(DSAs)in pediatric liver transpl-antation(LT),as well as the relationship between immune rejection after LT and ***,LT remains the standard of care for pediatric patients with end-stage liver disease or severe acute liver ***,acute and chronic re-jection continues to be a significant cause of graft dysfunction and *** mismatch significantly reduces graft survival and increases the risk of acute *** them,D→R one-way mismatch at three loci was significantly related to graft-versus-host disease incidence after *** adverse impact of HLA-DSAs on LT recipients is already ***,the evaluation of HLA and DSA is crucial in pediatric LT.

关键词： Liver transplantation Human leukocyte antigen Donor-specific antibodies De novo donor-specific antibody Antibody-mediated rejection

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影响体外鼠胚试验标准化的要素分析

中国比较医学杂志 2017年第7期27卷 102-106页

作者：史建峰韩倩倩王春仁中国食品药品检定研究院医疗器械检定所生物材料室北京102629

不孕症已成为影响人类生殖健康的全球性问题,作为治疗不孕症的一种重要治疗手段,辅助生殖技术经过几十年的发展已经获得长足进步。辅助生殖技术用医疗器械产业快速发展,对此类产品进行风险管理,制定相应的安全性评价检测方法已势在必行... 详细信息

不孕症已成为影响人类生殖健康的全球性问题,作为治疗不孕症的一种重要治疗手段,辅助生殖技术经过几十年的发展已经获得长足进步。辅助生殖技术用医疗器械产业快速发展,对此类产品进行风险管理,制定相应的安全性评价检测方法已势在必行。2016年行业标准YY/T 1434-2016《人类体外辅助生殖技术用医疗器械体外鼠胚试验》已经发布,本文就体外鼠胚试验中的关键节点和试验体系要素进行简要综述。

关键词：辅助生殖技术体外鼠胚试验 2-细胞阻滞医疗器械

Mechanism of action of Linggui Zhugan Decoction in treating non-alcoholic fatty liver disease using untargeted metabolomics approach

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Traditional Medicine Research 2025年第2期10卷 65-76页

作者： Huan Pei ren-Lin Li Xin-Ran Song qian-qian Wan Yu-Ming Wang Han-Zhou Li Wei-Quan Xu Jia-Bao Liao Wei-Bo Wen Jing Miao Huan-Tian Cui School of Basic Medicine Yunnan University of Chinese MedicineKunming 650599China School Clinical Medical College Yunnan University of Chinese MedicineKunming 650599China First School of Clinical Medicine Yunnan University of Chinese MedicineKunming 650599China School of Integrative Chinese and Western Medicine Tianjin University of Traditional Chinese MedicineTianjin 301617China Department of Pharmacy Tianjin Second People's HospitalTianjin 300192China

Background:Non-alcoholic fatty liver disease(NAFLD)is a liver disorder characterized by the accumulation and degeneration of fat in the liver cells,a condition that may further deteriorate and lead to cirrhosis and liver *** studies showed that metabolic dysfunction can promote NAFLD *** Zhugan Decoction(LGZGD)has therapeutic effects on *** mechanism of LGZGD still remains *** study was to examine the impact of LGZGD on the metabolic processes involved in the development of ***:A mice model of NAFLD was treated with *** therapeutic potential of LGZGD was evaluated by assessing the activity of transaminases,lipids levels of blood,and pathological changes in the liver of the mice model of ***,this study also evaluated the influence of LGZGD on liver inflammation and oxidative ***:The results of untargeted metabolomics analysis showed that LGZGD reduced the disordered lipid metabolism in NAFLD *** improved the oxidative stress and also reduced the levels of pro-inflammatory cytokines in the *** metabolomics analysis of liver samples revealed that LGZGD treatment improved metabolic disorders,including alanine,aspartate,glutamate,glycerophospholipid metabolism,and citrate *** RT-qPCR and Western blot results showed that LGZGD could regulate the expression of key enzymes in the metabolic pathway of the citrate cycle,including ATP-citrate lyase(ACLY),alanine-glyoxylate aminotransferase-2(AGXT2),phosphatidylethanolamine N-methyltransferase(PEMT),and succinate dehydrogenase(SDH).Conclusion:We found that LGZGD can treat NAFLD by reducing inflammatory responses,inhibiting oxidative stress,regulating alanine,aspartate,glutamate,and glycerophospholipid metabolism,and citrate cycle pathways.

关键词： NAFLD LGZGD untargeted metabolomics glycerophospholipid metabolism citrate cycle

Global trends and hotspots of type 2 diabetes in children and adolescents:A bibliometric study and visualization analysis

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World Journal of Diabetes 2025年第1期16卷 140-168页

作者： Fang-Shuo Zhang Hai-Jing Li Xue Yu Yi-Ping Song Yan-Feng ren Xuan-Zhu qian Jia-Li Liu Wen-Xun Li Yi-Ran Huang Kuo Gao School of Acupuncture-Moxibustion and Tuina Beijing University of Chinese MedicineBeijing 100029China School of Traditional Chinese Medicine Beijing University of Chinese MedicineBeijing 100029China

BACKGROUND Epidemiological surveys indicate an increasing incidence of type 2 diabetes mellitus(T2DM)among children and adolescents *** to rapid disease progression,severe long-term cardiorenal complications,a lack of effective treatment strategies,and substantial socioeconomic burdens,it has become an urgent public health issue that requires management and *** T2DM differs from adult *** a significant increase in our understanding of youth-onset T2DM over the past two decades,the related review and evidence-based content remain *** To visualize the hotspots and trends in pediatric and adolescent T2DM research and to forecast their future research *** This study utilized the terms“children”,“adolescents”,and“type 2 diabetes”,retrieving relevant articles published between 1983 and 2023 from three citation databases within the Web of Science Core Collection(SCI,SSCI,ESCI).Utilizing CiteSpace and VoSviewer software,we analyze and visually represent the annual output of literature,countries involved,and participating *** allows us to predict trends in this research *** analysis encompasses co-cited authors,journal overlays,citation overlays,time-zone views,keyword analysis,and reference analysis,*** A total of 9210 articles were included,and the annual publication volume in this field showed a steady growth *** United States had the highest number of publications and the highest *** United States also had the most research institutions and the strongest research *** global hot journals were primarily diabetes professional journals but also included journals related to nutrition,endocrinology,and *** analysis showed that research related to endothelial dysfunction,exposure risk,cardiac metabolic risk,changes in gut microbiota,the impact on comorbidities and outcomes,etc.,were emerging *** have maintained their popularity in this field,sugges

关键词： Child Adolescent Type 2 diabetes mellitus Bibliometrics Knowledge mapping Visualization CiteSpace VOSviewer

Biomechanics of Musculoskeletal System and Its Biomimetic Implications： A Review

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Journal of Bionic Engineering 2014年第2期11卷 159-175页

作者： Lei ren Zhihui qian Luquan ren School of Mechanical Aerospace and Civil Engineering University of Manchester Manchester M13 9PL UK Key Laboratory of Bionic Engineering (Ministry of Education China) Jilin University Changchun 130022 P. R. China

Biological musculoskeletal system （MSK）, composed of numerous bones, cartilages, skeletal muscles, tendons, ligaments etc., provides form, support, movement and stability for human or animal body. As the result of million years of selection and evolution, the biological MSK evolves to be a nearly perfect mechanical mechanism to support and transport the human or animal body, and would provide enormously rich resources to inspire engineers to innovate new technology and methodology to develop robots and mechanisms as effective and economical as the biological systems. This paper provides a general review of the current status of musculoskeletal biomechanics studies using both experimental and computational methods. This includes the use of the latest three-dimensional motion analysis systems, various medical imaging modalities, and also the advanced rigid-body and continuum mechanics musculoskeletal modelling techniques. Afterwards, several representative biomimetic studies based on ideas and concepts inspired from the structures and biomechanical functions of the biological MSK are dis- cussed. Finally, the major challenges and also the future research directions in musculoskeletal biomechanics and its biomimetic studies are proposed.

关键词： musculoskeletal system biomechanics multi-scale biomimetics biologically inspired robots and mechanisms

Molecular Mechanism of Rice Necrotic Lesion for Optimized Yield and Disease Resistance

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Rice science 2024年第3期31卷 285-299页

作者： HOU Xinyue WANG Yuping qian qian ren Deyong State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 310006China State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Rice Research InstituteSichuan Agricultural UniversityChengdu 611130China

How to balance rice resistance and yield is an important issue in rice *** with mutated necrotic lesion genes often have persistent broad-spectrum resistance,but this broad-spectrum resistance usually comes at the expense of ***,many necrotic lesion mutants in rice have been identified,and these genes are involved in disease resistance *** review provides a detailed introduction to the characteristics,classification,and molecular mechanisms of necrotic lesion ***,we review the molecular regulatory pathways of genes involved in rice disease ***,we summarize the relationship between resistance and yield in rice using newly developed gene editing *** discuss a rational and precise breeding strategy to better utilize molecular design technology for breeding disease-resistant and high-yield rice varieties.

关键词： rice necrotic lesion regulation mechanism high yield high resistance