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Toward superior lithium/sodium storage performance: design and construction of novel TiO_(2)-based anode materials

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Rare Metals 2021年第11期40卷 3049-3075页

作者： Pan-Pan Peng Yu-Rong Wu xue-Zhong Li jun-Hong Zhang Yan-Wei Li Ping cui Ting-Feng Yi School of Materials Science and Engineering Northeastern UniversityShenyang 110819China School of Chemistry and Chemical Engineering Anhui University of TechnologyMaanshan 243002China Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology College of Chemistry and Chemical EngineeringLiaocheng UniversityLiaocheng 252059China Department of Materials Science and Engineering University of WashingtonSeattleWA 98195USA Guangxi Key Laboratory of Electrochemical and Magneto-Chemical Function Materials College of Chemistry and BioengineeringGuilin University of TechnologyGuilin 541004China

TiO_(2)-based materials have been considered as one of most promising alternatives for high-performance Li(Na)-ion batteries because of the low cost,simple composition,easy synthesis,good environmental protection,excellent safety and relatively high specific ***,the inferior electronic conductivity and poor ion diffusion coefficients are the biggest bottlenecks that restrict the popular *** effort has been focused on resolving these problems toward large-scale applications,and numerous significant advances have been *** the present work,a comprehensive overview of structure characteristics,electrochemical reaction mechanism and modification strategies of TiO_(2)-based materials was *** recent advances of various efficient ways for improving conductivity,Li(Na)storage capacity,rate capability and cycle stability are systematically summarized,including surface engineering,constructing composite and element doping,*** TiO_(2)-based materials with novel porous heterogeneous core-shell structures have been regarded as one of the most effective ways to resolve these ***,the future research directions and development prospects of TiO_(2)-based anode materials used in the manufacture of high-performance Li(Na)-ion batteries are *** review can provide important comprehension for the construction and optimization of highperformance of TiO_(2)-based anode materials.

关键词： TiO_(2) Anode material Li-ion battery Na-ion battery Electrochemical performance

膨润土与秸秆配施对根区土壤有机碳化学结构和酶活性的影响

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中国土壤与肥料 2024年第3期 8-14页

作者：崔雪梅米俊珍刘景辉赵宝平张兰英吴胜胡可欣内蒙古农业大学农学院/全国农业科研杰出人才及其创新团队/内蒙古高校燕麦工程研究中心/内蒙古农业大学杂粮产业协同创新中心内蒙古呼和浩特010019

为揭示膨润土与秸秆配施后土壤有机碳及其化学结构特征,选取黄土高原旱作区3年田间定位试验中的秸秆还田(S)、单施膨润土(B)、膨润土配施秸秆(H)、不施膨润土和秸秆不还田(CK)4个处理,研究膨润土与秸秆配施对根际土壤有机碳含量、有机... 详细信息

为揭示膨润土与秸秆配施后土壤有机碳及其化学结构特征,选取黄土高原旱作区3年田间定位试验中的秸秆还田(S)、单施膨润土(B)、膨润土配施秸秆(H)、不施膨润土和秸秆不还田(CK)4个处理,研究膨润土与秸秆配施对根际土壤有机碳含量、有机碳化学结构和酶活性的影响。结果表明:施用膨润土和秸秆均能不同程度提高土壤有机碳含量,其中H处理较CK显著提高了19.65%。与CK相比,仅有H处理显著增加了烷基碳和烷氧碳的相对含量和脂族碳/芳香碳值,分别提高了25.53%、18.00%和50.98%;仅有H处理芳香性显著降低了30.93%;与CK相比,各处理增加了烷基碳/烷氧碳值,增幅为5.26%~17.54%,差异不显著;各处理降低了羧基碳和芳香碳相对含量,降幅分别为24.50%~38.19%和1.29%~21.97%,差异不显著。与CK相比,S、B和H处理蔗糖酶活性显著提高12.63%~33.16%;β-葡萄糖苷酶活性显著提高10.72%~45.56%;锰过氧化物酶活性显著提高25.10%~70.98%。相关性分析表明,土壤蔗糖酶、β-葡萄糖苷酶和锰过氧化物酶活性均与有机碳含量、烷基碳含量和烷基碳/烷氧碳值呈正相关,与羧基碳和芳香性呈负相关。综上所述,膨润土与秸秆配施能够提高土壤有机碳含量,提高土壤酶活性,增加活性有机碳含量,使土壤有机碳分子活化,有利于改善黄土高原旱作区土壤状况。

关键词：膨润土秸秆还田土壤有机碳有机碳化学结构酶活性

Utilizing dexamethasone intravitreal implant to control postoperative inflammation in refractory uveitis undergoing cataract surgery

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International Journal of Ophthalmology(English edition) 2021年第2期14卷 317-322页

作者： Yong-Tao Li xue-xue cui Xiao-Tong Yang Bing Li Xin-jun Ren Xiao-Rong Li Xiao-Min Zhang Tianjin Key Laboratory of Retinal Functions and Diseases Eye Institute and School of OptometryTianjin Medical University Eye HospitalTianjin 300384China

AIM:To report the effectiveness of intravitreal implantation of dexamethasone implant(Ozurdex)after phacoemulsification and intraocular lens implantation in refractory uveitis ***:This single-center retrospective study conducted for refractory pan-uveitis patients who underwent cataract surgery combined with intravitreal Ozurdex *** main outcome measurements were bestcorrected visual acuity(BCVA),central retinal thickness(CRT),grade of anterior chamber cell(AAC),intraocular pressure(IOP),and systemic/ocular adverse ***:Ten eyes of 7 patients were *** showed significant improvement at 1 mo(P=0.004),3 mo(P=0.0004),and 6 mo(P=0.001)post *** were no statistically significant differences in the postoperative CRT among follow-up groups(P>0.05).No significant differences were observed in the baseline IOP when compared to 1,3,and 6 mo(all P>0.05)post *** patient developed a transient elevated IOP post *** eyes(20%)developed posterior capsular opacifications and underwent neodymium-doped yttrium aluminum garnet(Nd:YAG)laser *** six patients(8 eyes,71.4%),the systemic steroid usage was reduced to below 10 mg/*** patients experienced a mean of 1.4±0.52 recurrences of inflammation in the 6 mo before operation and 0.7±0.48 in the 6 mon post *** mean recurrence time was 13±0.58 wk(range 12-14 wk)post *** five of seven patients(7 out of 10 eyes),inflammation relapse was developed *** one patient(2 eyes)needed increased amounts of oral *** inflammation recurrence in the remaining patients was controlled by topical ***:Ozurdex is considered a safe and effective approach to control postoperative inflammation in cataract surgery for patients with refractory uveitis in our *** the disappearance of Ozurdex’s antiinflammatory effects over time,in most cases the recurrent inflammation can be controlled by topical st

关键词： phacoem ulsification intraocular lens implantation dexamethasone intravitreal implant(Ozurdex) refractory uveitis

Volatilization behaviour and volatilization kinetics of CaF2-Na2O-CaOSiO2-Al2O3-MgO-B2O3 synthetic mould flux

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Journal of Iron and Steel Research International 2019年第4期26卷 412-421页

作者： Ya-ru cui Hao-yue Fan Zi-liang Guo Guo-hua Wang Xiao-ming Li jun-xue Zhao Ze Yang School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055ShaanxiChina Inner Mongolia Xinchuang Resources Recycling Co. Ltd.Ordos 014300Inner MongoliaChina

To reduce the volatilization of the volatile-containing slags and obtain accurate measurement results of slag performance,the volatility degree and deviation mechanism must be ***-isothermal thermogravimetric analysis at different heating rates was used to establish the volatilization kinetic model,and it reveals the volatilization mechanism of CaF2-Na2O-CaO-SiO2-Al2O3-MgO-B2O3 synthetic sodium-containing fluoride mould *** results demonstrated that the evaporation of NaF and SiF4 was the decisive factor that led to the change in composition and deviation of properties of the tested *** most probable kinetic mechanism function for the evaporation of volatile component from sodiumcontaining fluoride mould flux could be expressed by g(α)=[—ln(1-α)]^2/3,with an apparent activation energy of 164.866 kJ mol^-1 and pre-exponential factor of 2.13×10^-4 s^-1,where α is the conversion rate at any time step in the volatilization *** reaction mechanism was random nucleation followed by growth,which was the limiting factor for the volatilization of synthetic sodium-containing fluoride mould *** method of increasing heating rate and adding protection gas in the measurement system will help to obtain more accurate results of slag performance.

关键词： Fluoride Slag performance Volatilization kinetics Thermogravimetric analysis Mechanism function

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基于特征分块的赤足足迹人身识别算法

科学技术与工程 2024年第3期24卷 1125-1130页

作者：金益锋赵晓蕊崔均健陈伟卿王国栋蒋雪梅公安部鉴定中心北京100038 中国人民公安大学侦查学院北京100038 大连恒锐科技股份有限公司大连116085

为了提高赤足足迹人身识别算法的准确率,提出了一种基于深度学习的足迹识别算法。足底各区域所受压力的不同导致了它们包含的信息量存在一定的差异性,为了获取更稳定、区分度更高的特征,该算法采用ResNet50作为基础网络,在特征层进行分... 详细信息

为了提高赤足足迹人身识别算法的准确率,提出了一种基于深度学习的足迹识别算法。足底各区域所受压力的不同导致了它们包含的信息量存在一定的差异性,为了获取更稳定、区分度更高的特征,该算法采用ResNet50作为基础网络,在特征层进行分块处理。构建了一个包含2000人的赤足足迹库进行训练和一个包含3000人的赤足足迹库进行测试,该算法利用500人1000幅测试图在测试库上首位识别准确率达到了98.50%,优于常规的ResNet50网络。实验表明,基于特征分块的足迹识别算法在赤足足迹识别中获得了很好的识别效果。

关键词：足迹学人身识别深度学习特征提取特征分块

Effect of 1,25-Dihydroxyvitamin D_3 on Regulatory T Cells in Ovariectomized Mice

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Biomedical and Environmental Sciences 2014年第10期27卷 779-785页

作者： LIU jun Chen ZHOU Chen Hui ZHANG xue CHEN Yan XU Bi Lian cui Liao XU Dao Hua Department of Pharmacology Guangdong Medical College The Second Affiliated Hospital (Jiande Branch) School of Medicine ZheJiang University Institution of Traditional Chinese Medicine and New Pharmacy Development Guangdong Medical College

Objective To investigate the correlation between regulatory T （Treg） cells and postmenopausal osteoporosis and the antiosteoporotic effect of 1,25-dihydroxyvitamin D3 [1,25（OH）2D3] in relation to Treg cells. Methods Fifty female BALB/c mice were randomly divided into five groups： the basal control （BAS）, Sham, ovariectomy （OVX）, OVX＋diethylstilbestrol （OVX＋DES）, and OVX＋I,2S（OH）2D3. Tibias were harvested and processed with decalcification for quantitative bone histomorphometry. Femurs were stained by immunohistochemistry to detect Foxp3 protein expression. Spleens were used to detect Treg and Foxp3 gene expression by flow cy：ometry and quantitative RT-PCR, respectively. Results In comparison with the Sham group, a significant decrease was found in the OV~ group in such indices as trabecular bone volume/tc,tal tissue area （BV/TV）, trabecular number （Tb.N） and trabecular thickness （***）. 1,25（OH）2D3 and DES partly prevented the decrease in BV/TV, Tb.N, *** in OVX mice. Treg cell number, Foxp3 mRI~：A expression in spleen and Foxp3 protein expression in femur significantly decreased in the OVX-tr^ated group compared with those in the sham group. 1,25（OH）2D3 and DES significantly increased Treg cell number and Foxp3 expression. Treg cells and Foxp3 gene expression were related to bone histomorphometric parameters. Conclusion The decrease in Treg cell numbers is relevant to the postmenopausal osteoporosis. The antiosteoporosis of 1,25（OH）2D3 is related to regulatory T cells.

关键词： 1,25-dihydroxyvitamin D31 Osteoporosis Regulatory T cells Ovariectomy

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基于煅烧磷尾矿的磷石膏无害化处理工艺研究

化工矿物与加工 2024年第7期53卷 10-15页

作者：罗永菊崔焱焱梁梓晗杜本康薛俊曹宏武汉工程大学材料科学与工程学院国家磷资源开发利用工程技术研究中心

磷石膏是磷酸生产过程中的工业副产物，磷尾矿是磷矿选别过程中产生的固体废弃物，二者大量堆存不仅占用土地资源，还严重污染环境，制约了磷化工行业的高质量发展。为实现磷尾矿资源化利用和磷石膏的无害化处理，本文提出了以煅烧磷尾... 详细信息

磷石膏是磷酸生产过程中的工业副产物，磷尾矿是磷矿选别过程中产生的固体废弃物，二者大量堆存不仅占用土地资源，还严重污染环境，制约了磷化工行业的高质量发展。为实现磷尾矿资源化利用和磷石膏的无害化处理，本文提出了以煅烧磷尾矿无害化处理磷石膏的新路径，探究了水洗次数、磷尾矿煅烧温度、静置时间、硅酸盐水泥掺量对磷石膏中水溶性磷和水溶性氟的固化效果，结果表明：将1次水洗磷石膏配制成质量分数30%的料浆，与850℃下煅烧的磷尾矿和0.5%的普通硅酸盐水泥混合，搅拌、抽滤后静置3 d,所得磷石膏浸出液中水溶性磷质量浓度低于仪器检出限、水溶性氟质量浓度降至7.94 mg/L,pH为8.5,达到第Ⅰ类一般工业固体废物排放标准。研究成果可为磷尾矿和磷石膏的有效处理处置提供参考。

关键词：磷尾矿磷石膏无害化处理固化煅烧温度水洗净化法

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Interconnected Bi_(5)Nb_(3)O_(15)@CNTs network as high-performance anode materials of Li-ion battery

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Rare Metals 2022年第10期41卷 3401-3411页

作者： xue-Zhong Li Nan Zhang Yu-Rong Wu Qin-Zhi Lai Yan-Rong Zhu jun-Hong Zhang Ping cui Ting-Feng Yi School of Materials Science and Engineering Northeastern UniversityShenyang110819China School of Chemistry and Chemical Engineering Anhui University of TechnologyMaanshan243002China Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province Qinhuangdao066004China Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology College of Chemistry and Chemical EngineeringLiaocheng UniversityLiaocheng252059China

In this work,the facile carbon nanotubes(CNTs) modulation strategy was successfully used to fabricate Bi_(5) Nb_(3) O_(15)@CNTs composites as anode materials for lithium-ion battery by a simple solid-state *** introduction of CNTs does not change the structure of the Bi_(5) Nb_(3) O_(15) materials,the Bi_(5) Nb_(3) O_(15) particles are decorated on a three-dimensional CNTs network,and the high conductive network promotes transfer of electron/ion and relieve the volume change of Bi_(5) Nb_(3) O_(15).The Bi_(5) Nb_(3) O_(15)@CNTs(8 wt%) electrode shows a superior rate capability with charge(discharge) capacities of 490(898.7),379.1(401.6),311.3(326.9),276.5(285.5) and 243.4(252)mAh·g^(-1) at 50,100,200,300 and 500 mA·g^(-1),***,the Bi_(5) Nb_(3) O_(15) only shows charge(discharge) capacities of 431(772.6),278.6(309.9),193.1(213.7),160.8(171.1),129.9(139.1) mAh·g^(-1) at the corresponding rates,*** excellent rate capability of Bi_(5) Nb_(3) O_(15)@CNTs can be ascribed to the homogeneous distribution of Bi_(5) Nb_(3) O_(15) particles in the CNTs conductive network and the enhancement of ***,the CNTs modulation can be considered as an effective strategy to enhance electrochemical performances of Bi_(5) Nb_(3) O_(15) materials.

关键词： Bi_(5)Nb_(3)O_(15) Carbon nanotubes(CNTs) Anode Li-ion battery(LIB)

母细胞性浆细胞样树突状细胞肿瘤4例临床病理分析

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诊断病理学杂志 2024年第3期31卷 199-202,207页

作者：李君娜马佳佳于靖雯庞雪莲薛晶崔文丽新疆医科大学第一附属医院病理科乌鲁木齐830000

目的探讨母细胞性浆细胞样树突状细胞肿瘤(BPDCN)的临床病理特征、免疫表型、鉴别诊断、治疗及预后。方法回顾性分析明确诊断的4例BPDCN患者的临床特征、影像学、病理组织学、免疫表型及基因测序结果,复习国内外相关文献。结果4例BPDCN... 详细信息

目的探讨母细胞性浆细胞样树突状细胞肿瘤(BPDCN)的临床病理特征、免疫表型、鉴别诊断、治疗及预后。方法回顾性分析明确诊断的4例BPDCN患者的临床特征、影像学、病理组织学、免疫表型及基因测序结果,复习国内外相关文献。结果4例BPDCN中,男性3例,女性1例;发病年龄17~59岁,中位年龄52岁;4例均以皮肤侵犯为首发症状,2例伴淋巴结转移,3例伴骨髓累及,1例伴中枢及周围神经系统侵犯。免疫组化:肿瘤细胞均表达CD4、CD56、CD43、BCL-2,3例CD123阳性,Ki-67增殖指数20%~90%。EBER原位杂交检测均为阴性。其中1例行基因检测:染色体未见明显异常,髓系74种基因突变分析ASXL124.8%、TET220.6%。T细胞受体基因重排克隆性分析均为阴性。结论BPDCN是一种临床少见的高度侵袭性血液系统恶性肿瘤,病程进展快,预后极差,CD4、CD56、CD123及BCL-2阳性表达是其显著的免疫表型,不表达髓系细胞或B、T淋巴细胞免疫标记。诊断时除了病理形态学,还需结合临床表现、免疫表型、实验室检查等综合分析,必要时借助分子遗传学检测辅助诊断,避免误诊和漏诊。

关键词：母细胞性浆细胞样树突细胞肿瘤临床病理特征免疫表型诊断