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A high-entropy-designed cathode with V5+-V2+ multi-redox for high energy density sodium-ion batteries

Journal of Energy Chemistry 2024年第10期97卷 429-437页

作者： xiang ding Xiaofen Yang Yibing Yang Liangwei Liu Yi Xiao Lili Han College of Chemistry and Materials Science Fujian Normal University State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

Na3V2（PO4）3（NVP） is gifted with fast Na+conductive NASICON *** it still suffers from low electronic conductivity and inadequate energy ***,a high-entropy modification strategy is realized by doping V3+site with Ga3+/Cr3+/Al3+/Fe3+/In3+simultaneously(***3V2-x（GaCrAlFeIn）x（PO4）3;x=0,0.04,0.06,and 0.08) to stimulate the V5+■V2+reversible multi-electron *** configuration high-entropy can effectively suppress the structural collapse,enhance the redox reversibility in high working voltage（4.0 V）,and optimize the electronic induced *** in-situ X-ray powder diffraction and in-situ electrochemical impedance spectroscopy tests efficaciously confirm the robust structu ral recovery and far lower polarization throughout an entire charge-discharge cycle during 1.6-4.3 V,***,the density functional theory calculations clarify the stronger metallicity of high-entropy electrode than the bare that is derived from the more mobile free electrons surrounding the vicinity of Fermi *** grace of high-entropy design and multi-electron transfer reactions,the optimal Na3V1.7（GaCrAlFeIn）0.06（PO4）3can exhibit perfect cycling/rate performances(90.97%@5000 cycles@30 C;112 mA h g-1@10 C and 109 mA h g-1@30 C,2.0-4.3 V).Furthermore,it can supply ultra-high185 mA h g-1capacity with fa ntastic energy density(522 W h kg-1) in half-cells（1.4-4.3 V）,and competitive capacity(121 mA h g-1) as well as energy density(402 W h kg-1) in full-cells（1.6-4.1 V）,demonstrating enormous application potential for sodium-ion batteries.

关键词： High energy density High-entropy Na3V2(PO4)3 Sodium-ion batteries V5+⇋V2+ multi-redox

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Effects of Lactobacillus paracasei N1115 on gut microbial imbalance and liver function in patients with hepatitis B-related cirrhosis

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World Journal of Gastroenterology 2024年第11期30卷 1556-1571页

作者： Yan-Chao Hu xiang-Chun ding Hui-Juan Liu Wan-Long Ma Xue-Yan Feng Li-Na Ma Department of Infectious Disease General Hospital of Ningxia Medical UniversityYinchuan 750004Ningxia Hui Autonomous RegionChina Infectious Disease Clinical Research Center of Ningxia Yinchuan 750004Ningxia Hui Autonomous RegionChina

BACKGROUND Hepatitis B cirrhosis(HBC)is a chronic disease characterized by irreversible diffuse liver damage and aggravated by intestinal microbial imbalance and metabolic *** the relationship between certain single probiotics and HBC has been explored,the impact of the complex ready-to-eat Lactobacillus paracasei N1115(LP N1115)supplement on patients with HBC has not been *** To compare the changes in the microbiota,inflammatory factor levels,and liver function before and after probiotic treatment in HBC *** This study included 160 HBC patients diagnosed at the General Hospital of Ningxia Medical University between October 2018 and December *** were randomly divided into an intervention group that received LP N1115 supplementation and routine treatment and a control group that received routine treatment *** samples were collected at the onset and conclusion of the 12-wk intervention *** structure of the intestinal microbiota and the levels of serological indicators,such as liver function and inflammatory factors,were *** Following LP N1115 intervention,the intestinal microbial diversity significantly increased in the intervention group(P<0.05),and the structure of the intestinal microbiota was characterized by an increase in the proportions of probiotic microbes and a reduction in harmful ***,the intervention group demonstrated notable improvements in liver function indices and significantly lower levels of inflammatory factors(P<0.05).CONCLUSION LP N1115 is a promising treatment for ameliorating intestinal microbial imbalance in HBC patients by modulating the structure of the intestinal microbiota,improving liver function,and reducing inflammatory factor levels.

关键词： Hepatitis B cirrhosis N1115 ready-to-eat lactobacillus Inflammation Liver function Lachnospiraceae incertae sedis Probiotic

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Optimization for epitaxial fabrication of infinite-layer nickelate superconductors

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Frontiers of physics 2024年第3期19卷 61-69页

作者： Minghui Xu Yan Zhao xiang ding Huaqian Leng Shu Zhang Jie Gong Haiyan Xiao Xiaotao Zu Huiqian Luo Ke-Jin Zhou Bing Huang Liang Qiao School of Physics University of Electronic Science and Technology of ChinaChengdu 610054China Beijing Computational Science Research Center Beijing 100193China Diamond Light Source Harwell CampusDidcot OX110DEUnited Kingdom Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Songshan Lake Materials Laboratory Dongguan 523808China

The discovery of nickelates superconductor creates exciting opportunities to unconventional superconductivity. However, its synthesis is challenging and only a few groups worldwide can obtain samples with zero-resistance. This problem becomes the major barrier for this field. From plume dynamics perspective, we found the synthesis of superconducting nickelates is a complex process and the challenge is twofold, i.e., how to stabilize an ideal infinite-layer structure Nd_(0.8)Sr_(0.2)NiO_(2), and then how to make Nd_(0.8)Sr_(0.2)NiO_(2) superconducting? The competition between perovskite Nd_(0.8)Sr_(0.2)NiO_(3) and Ruddlesden−Popper defect phase is crucial for obtaining infinite-layer structure. Due to inequivalent angular distributions of condensate during laser ablation, the laser energy density is critical to obtain phase-pure Nd_(0.8)Sr_(0.2)NiO_(3). However, for obtaining superconductivity, both laser energy density and substrate temperature are very important. We also demonstrate the superconducting Nd_(0.8)Sr_(0.2)NiO_(2) epitaxial film is very stable in ambient conditions up to 512 days. Our results provide important insights for fabrication of superconducting infinite-layer nickelates towards future device applications.

关键词： nickelate superconductivity infinite-layer plasma condensate plume dynamics

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Preparation and properties of ZrO_(2)-strengthened porous mullite insulation materials using Y_(2)O_(3) additive

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Journal of Iron and Steel Research International 2024年第6期31卷 1514-1521页

作者： Wang-zhi Yu Yi-hong Shi Ping Liu Yong-wan Wu Cheng-hao Song Xian-gong Deng xiang ding Song-lin Ran Yi Zhang Hai-jun Zhang Hai-liang Deng Advanced Ceramics Research Center School of Materials Science and EngineeringAnhui University of TechnologyMa'anshan 243002AnhuiChina The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina

ZrO_(2)-strengthened porous mullite insulation materials were prepared by foaming technology utilizing ZrSiO_(4) and Al_(2)O_(3) as primary materials and Y_(2)O_(3) as an *** effects of Y_(2)O_(3) contents on the phase composition,microstructure,mechanical properties,and heat conductivity of the porous mullite insulation materials were investigated.A suitable Y_(2)O_(3) content could promote phase transition of monoclinic ZrO_(2)(m-ZrO_(2))to tetragonal ZrO_(2)(t-ZrO_(2)),reduce pore size,and improve the strengths of as-prepared *** cold crushing strength and bending strength of as-prepared specimens with a 119µm spherical pore size using 6 wt.%Y_(2)O_(3) were 35.2 and 13.0 MPa,respectively,with a heat conductivity being only 0.248 W/(m K).

关键词： Porous mullite insulation material Zirconium oxide Y_(2)O_(3) Mechanical property Heat conductivity

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冷喷涂Zn-Al合金涂层组织结构和力学性能研究

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功能材料 2024年第3期55卷 3107-3112页

作者：李瑞祺丁翔丁彰雄武汉理工大学交通与物流工程学院武汉430063

以Q235钢为基体制备高压冷喷涂Zn-Al合金涂层,研究了基体粗糙度对冷喷涂Zn-Al合金涂层组织结构、显微硬度和结合强度的影响。研究表明,冷喷涂Zn-Al合金涂层具有致密的组织结构,涂层孔隙率在0.5%以下,并且在喷涂过程中没有产生粉末相变... 详细信息

以Q235钢为基体制备高压冷喷涂Zn-Al合金涂层,研究了基体粗糙度对冷喷涂Zn-Al合金涂层组织结构、显微硬度和结合强度的影响。研究表明,冷喷涂Zn-Al合金涂层具有致密的组织结构,涂层孔隙率在0.5%以下,并且在喷涂过程中没有产生粉末相变和氧化,随着基体粗糙度增加,涂层-基体界面的机械咬合得到明显改善。基体粗糙度对涂层显微硬度的影响主要集中在涂层-基体界面附近,随着基体粗糙度增加,该界面附近涂层的显微硬度随之增加,而远离该界面的涂层显微硬度受基体粗糙度的影响不大。基体粗糙度对涂层结合强度有显著影响,当基体粗糙度由1.6增加到10.2μm时,涂层结合强度由7.5增加到46.4 MPa,拉伸断裂失效模式由粘着断裂转变为粘着断裂、粘聚断裂的复合失效模式。

关键词：冷喷涂技术粗糙度显微组织结构显微硬度结合强度

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Finite dimensional irreducible representations of Lie superalgebra D(2,1;α)

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Communications in Theoretical Physics 2024年第2期76卷 14-28页

作者：陈曦杨文力丁祥茂张耀中 College of Intelligent Systems Science and Engineering Hubei Minzu University 445000China Institute of Modern Physics Northwest UniversityXian 710069China Institute of Applied Mathematics Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100080China School of Mathematics and Physics The University of QueenslandBrisbaneQLD 4072Australia

This paper focuses on the finite dimensional irreducible representations of Lie superalgebra D(2,1;α).We explicitly construct the finite dimensional representations of the superalgebra D(2,1;α)by using the shift operator and differential operator *** ordinary Lie algebra representation,there are typical and atypical representations for most ***,its typical and atypical representation conditions are also *** results are expected to be useful for the construction of primary fields of the corresponding current superalgebra of D(2,1;α).

关键词： superalgebra representations shift operator conformal field theory

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Organizing pneumonia secondary to pulmonary tuberculosis:A case report

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World Journal of Clinical Cases 2024年第26期12卷 5974-5982页

作者： Min Liu Xi-Yang Dong Zhi-xiang ding Qing-Hai Wang De-Hui Li Department of Infectious Diseases Changde HospitalXiangya School of MedicineCentral South University(The First People’s Hospital of Changde City)Changde 415000Hunan ProvinceChina

BACKGROUND Organizing pneumonia secondary to pulmonary tuberculosis is ***,the temporal boundary between pulmonary tuberculosis and secondary organizing pneumonia has not been *** report a case of secondary organizing pneumonia associated with pulmonary tuberculosis occurring after nine months of antituberculosis *** SUMMARY A 54 years old man,previously diagnosed with pulmonary tuberculosis and tuberculous pleurisy,underwent nine months of antituberculosis ***-up lung computed tomography revealed multiple new subpleural groundglass opacities in both lungs,and a lung biopsy confirmed organizing *** continued with anti-tuberculosis agents and hormone therapy,and subsequent dynamic pulmonary computed tomography exams demonstrated improvement in lesion *** disease recurrence was observed after corticosteroid therapy *** When treating patients with active pulmonary tuberculosis,if an increase in lesions is observed during anti-tuberculosis treatment,it is necessary to consider the possibility of tuberculosis-related secondary organizing pneumonia,timely lung biopsy is essential for early intervention.

关键词： Pulmonary tuberculosis Antituberculosis treatment Lung biopsy Organizing pneumonia Corticoids Case report

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高温溶液法生长4H–SiC单晶的助溶剂研究进展

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硅酸盐学报 2024年第7期52卷 2425-2441页

作者：丁祥钱昊梁刚强陈雅薇刘源安徽工业大学冶金减排与资源综合利用教育部重点实验室安徽马鞍山243002 清华大学材料学院北京100084 先进成形制造教育部重点实验室北京100084

碳化硅(SiC)作为第三代半导体材料,不仅在化学性能上相对稳定,而且具有一系列突出的物理性能优势,如器件极限工作温度高、临界击穿电场强度大及热导率高等,是目前相对成熟且应用最广的宽禁带材料。为满足SiC在新能源汽车、太阳能光伏及... 详细信息

碳化硅(SiC)作为第三代半导体材料,不仅在化学性能上相对稳定,而且具有一系列突出的物理性能优势,如器件极限工作温度高、临界击穿电场强度大及热导率高等,是目前相对成熟且应用最广的宽禁带材料。为满足SiC在新能源汽车、太阳能光伏及风力发电等领域的大规模应用需求,高质量、大尺寸、低成本的SiC单晶生长工艺仍是未来研究重点。其中,高温溶液生长法(HTSG)获得的SiC单晶具有晶体位错少、易扩径且易实现P型掺杂、成本低等优势,弥补了物理气相传输法(PVT)生长出的晶体缺陷多且高能耗、高成本等不足。在HTSG法生长SiC单晶中,助溶剂的合理选择是提高SiC晶体生长效率与生长质量的关键因素;目前,常用的助溶液体系为Si–Cr二元或Si–Cr–Al三元体系。4H碳化硅(4H–SiC)作为一种典型的SiC晶体结构,存在一个六方格点和一个立方格点,且双原子层以ABCB–ABCB形式连接,这种排列方式使得4H–SiC晶体具有较高硬度及热稳定性。本文首先总结了HTSG法生长4H–SiC单晶中助溶剂的研究历程,然后从热力学角度分析了助溶液体系对晶体生长的影响,并归纳总结了针对助溶剂的研究所采用的不同方法,最后提出了HTSG法生长4H–SiC单晶中助溶剂研究的重点和难点。

关键词：碳化硅高温溶液法助溶剂热力学计算

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Vasculogenic mimicry:a pivotal mechanism contributing to drug resistance in antiangiogenic therapy

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Oncology and Translational Medicine 2024年第3期10卷 119-125页

作者： Shu-Min Dang Dan Yang Zhi-Yi Wang xiang-Ming ding Xiu-Ling Li De-Yu Li Dong-Xiao Li Department of Gastroenterology People’s Hospital of Zhengzhou UniversityHenan Provincial People’s HospitalZhengzhouHenanChina Henan Key Medical Laboratory for Molecular Immunology of Digestive Diseases Henan Provincial People’s HospitalZhengzhouHenanChina Department of Hepatobiliary Surgery People’s Hospital of Zhengzhou UniversityHenan Provincial People’s HospitalZhengzhouHenanChina Henan Provincial Key Medical Laboratory for Hepatobiliary and Pancreatic Diseases Henan Provincial People’s HospitalZhengzhouHenanChina

The growth of solid tumors relies on establishing a robust blood supply,with angiogenesis playing a key role in this intricate *** on this understanding,therapeutic strategies targeting tumor angiogenesis have been ***,the clinical effectiveness of antiangiogenic therapy(AAT)in treating tumors has not lived up to *** recent years,vasculogenic mimicry(VM)has attracted increasing attention from the academic community as a longstanding but often overlooked mechanism of nonangiogenic tumor *** the tumor microenvironment,neoplastic cells can autonomously form vessel-like structures,creating a blood supply that does not rely on endothelial *** phenomenon,known as VM,is a critical marker of aggressive tumors and may play a significant role in conferring resistance to *** this review,we thoroughly examine the evidence,clinical characteristics,and mechanisms of VM across various tumor types and explore its potential role and importance in resistance to AAT and the development of new antitumor therapies.

关键词： Vasculogenic mimicry Antiangiogenic therapy Angiogenesis Tumor microenvironment Immunotherapy

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双循环背景下双向FDI协调发展对经济高质量发展影响研究

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铜陵学院学报 2024年第1期23卷 56-61页

作者：丁香丁家云安徽工业大学商学院安徽马鞍山243000 铜陵学院经济学院安徽铜陵244061

基于2008—2021年中国30个省份的面板数据,利用耦合协调度和熵权法计算出双向FDI协调发展水平,并从新发展理念视角构建指标体系测度经济高质量发展水平,采用空间计量模型分析双向FDI协调发展对经济高质量发展的影响。结果显示:双向FDI... 详细信息

基于2008—2021年中国30个省份的面板数据,利用耦合协调度和熵权法计算出双向FDI协调发展水平,并从新发展理念视角构建指标体系测度经济高质量发展水平,采用空间计量模型分析双向FDI协调发展对经济高质量发展的影响。结果显示:双向FDI协调发展和经济高质量发展存在显著的空间自相关性;双向FDI协调发展显著促进本地区以及邻近地区经济高质量发展;分地区看,双向FDI协调发展对东部地区经济高质量发展的促进作用最大,中部地区次之,对西部地区无明显影响。为此,政府需提高双向FDI协调发展水平,促进要素在各省份间流动,实行差异化投资政策。

关键词：双向FDI协调发展经济高质量发展空间杜宾模型

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