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Prediction of suitable water content in granulation of sintering mixture based on Litster's model

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Journal of Iron and Steel Research International 2024年第3期31卷 552-560页

作者： Fang-lei Dai xiao-hui Fan xiao-xian Huang Xu-ling Chen Min Gan Zhi-yun Ji Zeng-qing Sun School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083HunanChina

Suitable water content plays a decisive role in the granulation of sintering ***,a method was proposed to predict the suitable water content for effective granulation on the basis of Litster's granulation *** granulation effectiveness of a sintering mixture was predicted by the model,with the allowance error of±10%.The effects of the water absorption properties,particle size composition and content of adhesive particles on the suitable water content were *** results showed that the allowable error of prediction was within±0.5%compared to the experimentally determined suitable water *** an increase in adhesive powder content of mixtures with higher water absorption,the suitable water content increased to achieve similar granulation ***,as the amount of concentrates increased,the suitable water content first increased and then remained *** influence of the water absorption characteristics of the adhesive particles on the suitable water content was less than that of their particle size composition in the mixture.

关键词： Adhesive particle Sintering mixture Granulation effectiveness Suitable water content

Comprehensive analysis and mitigation strategies for safety issues of sodium-ion batteries

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Rare Metals 2024年第4期43卷 1343-1349页

作者： Tao Wei xiao-Ling xian Shi-Xue Dou Wei Chen Shu-Lei Chou Institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035China Wenzhou Key Laboratory of Sodium-Ion Batteries Wenzhou University Technology Innovation Institute for Carbon NeutralizationWenzhou325035China Zhejiang Key Laboratory of Carbon Materials College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou325035China Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsUniversity of WollongongInnovation CampusWollongongNSW2522Australia

Sodium-ion batteries show great potential as an alternative energy storage system,but safety concerns remain a major hurdle to their mass *** paper analyzes the key factors and mechanisms leading to safety issues,including thermal runaway,sodium dendrite,internal short circuits,and gas *** promising solutions are proposed,such as high-safety electrode materials in the cathode and anode,high-safety electrolytes,and external battery management *** in also we emphasize the importance of selecting appropriate analysis methods and developing reliable failure models while suggesting advanced machine learning tools for *** a comprehensive approach,this study offers valuable recommendations to optimize materials and solutions for improving the safety of sodium-ion batteries.

关键词： Sodium-ion batteries Safety issues Thermal runaway Sodium dendrites

A topology approach to overcome the pore size/volume trade-offs for autonomous indoor humidity control

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Science China Chemistry 2024年第9期67卷 2968-2974页

作者： Zhi-Shuo Wang Xue-Wen Zhang Kai Zheng xiao-xian Chen Dong-Dong Zhou Jie-Peng Zhang MOE Key Laboratory of Bioinorganic and Synthetic Chemistry GBRCE for Functional Molecular EngineeringSchool of ChemistryIGCMESun Yat-Sen UniversityGuangzhou 510275China Chemistry and Chemical Engineering Guangdong Laboratory Shantou 515021China

Autonomous indoor humidity control is gaining more and more attention but is limited by the trade-offs among pore volume,pore size and water stability of water *** solve this problem by using a unique coordination network topology combined with hydrolytically stable M(Ⅲ)carboxylate *** extending the ligand length from 9.0 to 11.2 and 13.7?,the pore volume significantly increases from 0.99 to 1.40 and 1.78 cm^(3)g^(-1),which proportionally increases the saturated water adsorption ***,the pore size slightly increases from 10.4 to 11.0 and 13.5A,which restricts the isotherm inflection pressure and hysteresis width to meet the requirement of indoor humidity *** single-crystals suitable for Xray diffraction studies were obtained by using Fe(Ⅲ)salts,while isostructural frameworks with sufficiently high water stabilities were synthesized by using Cr(Ⅲ)salts,which offer record working capacity of 0.90 and 1.10 g g^(-1)for indoor humidity control.

关键词： metal-organic frameworks water adsorption indoor humidity control water stability pore engineering

Influence of oxygen-rich hot air composite gas medium on sintering performance and function mechanism

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Journal of Iron and Steel Research International 2024年第5期31卷 1071-1081页

作者： Min Gan Hao-xiang Zheng xiao-hui Fan Zhi-yun Ji Qiang Li Ming Wu Yi-fan Wang xiao-long Wang Yu-feng Wu Xu-ling Chen Zeng-qing Sun xiao-xian Huang School of Minerals Processing and Bioengineering Central South UniversityChangsha410083HunanChina Shanxi Taigang Stainless Steel Co. Ltd.Taiyuan030003ShanxiChina

Hot air sintering technology is used to improve the quality and production efficiency of sintered ***,the current thick layer condition highlights the disadvantage of the low oxygen potential of the hot air sintering ***,it is considered to use oxygen enrichment sintering to improve the environment of hot air *** sintering,hot air sintering,and oxygen-rich hot air sintering were compared through sintering cup experiments,and the influence of hot air and oxygen-rich hot air on sintering indexes was *** air reduced the vertical sintering velocity,while improved the yield and tumbler ***-rich hot air sintering contributed to improving the vertical sintering velocity while ensuring the quality of sintered ore,thus comprehensively improving production *** the action of hot air,the highest temperature of the sintering layer increased and the high-temperature holding time was *** oxygen enrichment,the combustion efficiency of fuels in the upper layer of materials was promoted,which optimized heat distribution in the middle and lower layers of materials and increased the content of calcium ferrite in the sintered ore,thus strengthening the sintering process.

关键词： Iron ore sintering Hot air sintering Oxygen enrichment Function mechanism

Correlation between serum markers and transjugular intrahepatic portosystemic shunt prognosis in patients with cirrhotic ascites

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World Journal of Gastrointestinal Surgery 2024年第2期16卷 481-490页

作者： xiao-Gang Hu xiao-xian Yang Jun Lu Gang Li Jian-Ji Dai Jia-Min Wang Yi Deng Rui Feng Department of Interventional Radiology The Affiliated Jinhua HospitalZhejiang University School of MedicineJinhua 321000Zhejiang ProvinceChina Medical College Jinhua PolytechnicJinhua 321017Zhejiang ProvinceChina Department of Interventional Medicine Zhejiang Provincial People’s HospitalPeople’s Hospital of Hangzhou Medical CollegeHangzhou 310000Zhejiang ProvinceChina

BACKGROUND Individuals with refractory ascites in the context of liver cirrhosis typically face an adverse *** transjugular intrahepatic portosystemic shunt(TIPS)is an efficacious intervention,but there is a lack of reliable tools for postoperative pro-gnosis *** utilized clinical biochemical markers,such as the serum albumin concentration(Alb),sodium(Na+)concentration,and serum creatinine(Scr),have limited predictive ***,the quest for novel,specific biomarkers to evaluate the post-TIPS prognosis in patients with liver cirrhosis and refractory ascites holds significant practical importance.A retrospective analysis was conducted on 75 patients with liver cirrhosis and refractory ascites who underwent TIPS at our institution from August 2019 to August *** patients were followed up regularly for two years,and the death toll was meticulously *** patients were allocated into a survival group(n=45 patients)or a deceased group(n=30 patients)based on their prognosis *** clinical data of the two groups were collected,and Child-Pugh scores and MELD scores were calculated for *** correlation analysis was carried out to evaluate the correlation of prognosis with Child-Pugh grade,MELD score,and Cys C ***,a multiple-factor analysis utilizing the Cox proportional hazard model was used to identify independent risk factors affecting the post-TIPS prognosis of patients with liver cirrhosis and refractory *** receiver operating characteristic curve(ROC)ascertained the predictive value of the Cys C concen-tration,Child-Pugh grade,and MELD score for the prognosis of liver cirrhosis with refractory ascites in post-TIPS *** During a 2-year follow-up period,among 75 patients with liver cirrhosis and refractory ascites who underwent TIPS treatment,30 patients(40.00%)passed *** deceased cohort exhibited heightened aspartate aminotrans-ferase,alanine aminotransferase,total b

关键词： Liver cirrhosis Refractory ascites Transjugular intrahepatic portosystemic shunt Cystatin C

“大写的科学革命”思想史研究论纲辨析——对王荣江、黄翔、齐文涛的回应

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自然辩证法研究 2024年第7期40卷 24-32页

作者：肖显静华南师范大学科学技术与社会研究院广州510006

《科学思想史》一书遵循“综合论”研究纲领,以科学史为基础,沿着“自然观变革、方法论创新与科学革命”的主线,系统地呈现不同历史阶段的“大写的科学的革命”,能够应对“吉尔挑战”。“大写的”和“小写的”科学革命的内涵和区别是明... 详细信息

《科学思想史》一书遵循“综合论”研究纲领,以科学史为基础,沿着“自然观变革、方法论创新与科学革命”的主线,系统地呈现不同历史阶段的“大写的科学的革命”,能够应对“吉尔挑战”。“大写的”和“小写的”科学革命的内涵和区别是明确的,其演进模式和范式变革不同于库恩的科学革命理论。对不同历史阶段所发生的“大写的科学革命”的概括——“神学式科学”“哲学式科学”“机械式科学”“有机式科学”“地方性科学”,是恰当的。

关键词：科学思想史范式科学革命大写的科学革命小写的科学革命

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Chinese Journal of Integrative Medicine 2024年第8期30卷 684-691页

作者： CAO Wei WANG Lu HOU Ting-hui SHI Yun-zhou ZHENG Qian-hua ZHENG Hui ZOU Zi-hao QIN Di YANG Qian CHEN Si-jue WANG Hai-yan xiao xian-jun LI Ying Department of Acupuncture and Moxibustion Chengdu University of Traditional Chinese MedicineChengdu610000China Acupuncture and Moxibustion School of Health Preservation and Rehabilitation Chengdu University of Traditional Chinese MedicineChengdu610000China

Objective: To explore the demographic and disease-related factors associated with acupuncture response in patients with chronic tension-type headache(CTTH). Methods: Using data from the randomized clinical trial(218 cases) consisting of 4 weeks of baseline assessment, 8 weeks of treatment, and 24 weeks of follow-up, participants were regrouped into responders(at least a 50% reduction in monthly headache days at week 16 compared with baseline) and non-responders. Twenty-three demographic and disease-related factors associated with acupuncture response in 183 participants were analyzed by multivariable logistic regression. Results: One hundred and nineteen(65.0%) participants were classified as responders. Four factors were significantly independently associated with acupuncture response, including treatment assignment, headache intensity at baseline, and 2 domains [general health(GH) and social functioning(SF)] from the 36-Item Short Form Health Survey quality of life questionnaire. Treatment assignment was associated with nonresponse: participants receiving true acupuncture were 3-time more likely to achieve a CTTH response than those receiving superficial acupuncture [odds ratio(OR) 0.322, 95% confidence interval(CI) 0.162 to 0.625, P=0.001]. Compared with patients with mild-intensity headache, patients with moderate-intensity headache were twice as likely to respond to acupuncture(OR 2.001, 95% CI 1.020 to 4.011, P=0.046). The likelihood of non-response increased by 4.5% with each unit increase in the GH grade(OR 0.955, 95% CI 0.917 to 0.993, P=0.024) while decreased by 3.8% with each unit increase in the SF grade(OR 1.038, 95% CI 1.009 to 1.069, P=0.011). Conclusions: Greater headache intensity, lower GH score, and higher SF score were associated with better acupuncture responses in CTTH patients. These 3 factors require independent validation as predictors of acupuncture effectiveness in CTTH.

关键词： acupuncture chronic tension-type headache logistic regression quality of life Chinese medicine

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以色列对国内阿拉伯人的政策及其成因

西亚非洲 2024年第1期 76-101,154,155页

作者：肖宪张庶云南大学国际关系研究院

以色列自1948年建国以来,对国内阿拉伯人实施表面上平等自治、实质上歧视压制分化的民族政策。在建构主义理论视角下,以色列歧视性民族政策源于犹太复国主义思想、基于恶劣地缘环境而产生的绝对安全观,以及国内阿拉伯人“威胁”犹太人... 详细信息

以色列自1948年建国以来,对国内阿拉伯人实施表面上平等自治、实质上歧视压制分化的民族政策。在建构主义理论视角下,以色列歧视性民族政策源于犹太复国主义思想、基于恶劣地缘环境而产生的绝对安全观,以及国内阿拉伯人“威胁”犹太人主体民族数量的认知焦虑。排他性的犹太复国主义思想不仅阻碍了将阿拉伯民族融进以色列国家的路径,同时反向促进了阿拉伯人自身独立性的构建,而恶劣的地缘安全形势使得阿拉伯人长期被以色列社会看作“第五纵队”,无法被主流社会接纳。以色列本土主体族群人口不足、阿拉伯人数量增加的情势,使以色列的本土犹太人产生了前所未有的极大的不安与危机感,推动以色列政府事实上对阿拉伯人实行歧视性政策。该政策使得以色列阿拉伯人在政治、经济和文化各个方面都被以色列主流社会边缘化,同时更破坏了以色列的民主制与国家构建。以色列只有采取更公平的民族政策,才能在族群政治的现实中实现以色列族群关系的和谐,构建合理的国家认同,实现民族国家的稳定构建。

关键词：民族政策以色列阿拉伯人犹太—阿拉伯关系建构主义

What are the changes in the hotspots and frontiers of microRNAs in hepatocellular carcinoma over the past decade?

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World Journal of Clinical Oncology 2024年第1期15卷 145-158页

作者： Lu Zhang Zu-Yuan Chen xiao-xian Wei Jian-Di Li Gang Chen Department of Pathology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina

BACKGROUND Emerging research suggests that microRNAs(miRNAs)play an important role in the development of hepatocellular carcinoma(HCC).A comprehensive analysis of recent research concerning miRNAs in HCC development could provide researchers with a valuable reference for further *** To make a comprehensive analysis of recent studies concerning miRNAs in *** All relevant publications were retrieved from the Web of Science Core Collection *** software,VOSviewer software and CiteSpace software were used to visually analyze the distribution by time,countries,institutions,journals,and authors,as well as the keywords,burst keywords and thematic *** A total of 9426 publications on this topic were found *** to the keywords analysis,we found that the studies of miRNAs focused on their expression level,effects,and mechanisms on the biological behaviour of *** bursting analysis showed that in the early years(2013–2017),“micro-RNA expression”,“gene expression”,“expression profile”,“functional polymorphism”,“circulating microRNA”,“susceptibility”and“mir 21”started to attract *** the latest phase(2018–2022),the hot topics turned to“sorafenib resistance”,“tumor microenvironment”and so *** This study provides a comprehensive overview of the role of miRNAs in HCC development based on bibliometric *** hotspots in this field focus on miRNAs expression level,effects,and mechanisms on the biological behavior of *** frontiers turned to sorafenib resistance,tumor microenvironment and so on.

关键词： miRNA Hepatocellular carcinoma Bibliometric VOSviewer CiteSpace