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Complex permittivity-dependent plasma confinement-assisted growth of asymmetric vertical graphene nanofiber membrane for high-performance li-S full cells

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InfoMat 2022年第7期4卷 129-146页

作者： Yongshang Zhang Zhiheng Wu Shaobin Wang Neng li S.Ravi P.silva Guosheng Shao Peng Zhang State Center for International Cooperation on Designer Low-Carbon&Environmental Materials(CDLCEM) School of Materials Science and EngineeringZhengzhou UniversityZhengzhouChina Zhengzhou Materials Genome Institute(ZMGI) ZhengzhouChina School of Chemical Engineering and Advanced Materials University of AdelaideAdelaideSouth AustraliaAustralia State Key Laboratory of Silicate Materials for Architecture Wuhan University of TechnologyWuhanChina Nanoelectronics Center Advanced Technology InstituteUniversity of SurreyGuildfordUK

Vertical graphene(VG),possessing superior chemical,physical,and structural peculiarities,holds great promise as a building block for constructing a high-energy density lithium-sulfur(li-S)***,it is desirable to develop a new VG growth technique with a novel structure to enable wide ***,we devise a novel complex permittivity-dependent plasma confinement-assisted VG growth technique,via asymmetric growing a VG layer on one side of N-doped carbon nanofibers for the first time,using a unique lab-built high flux plasma-enhanced chemical vapor deposition system,as a bifunctional nanofiber membrane to construct li-S batteries with low neg-ative/positive(N/P)and electrolyte/sulfur(E/S)*** unique nanofiber membrane could simultaneously protect the cathode and anode,enabling an excellent electrochemical performance with low N/P and E/S ratios in li-S *** a full cell delivers high gravimetric energy density and volumetric energy density of 340 Wh kg^(-1) and 547 Wh L^(-1),respectively,at low N/P(2:1)and E/S(4:1)***,a pouch cell achieves a high areal capacity of 7.1 mAh cm^(-2) at a sulfur loading of 6 mg cm^(-2).This work put forward a novel pathway for the design of high-energy density li-S batteries.

关键词： asymmetric complex permittivity electrospinning li-S batteries vertical graphene

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长江中游牛轭湖湿地含水层沉积物中铁和有机质组成对砷赋存形态的影响

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安全与环境工程 2024年第1期31卷 182-195页

作者：李门楼金戈李甜徐泽龙汪倩中国地质大学(武汉)教育研究院湖北武汉430074 成都理工大学地球科学学院四川成都610059 中国地质大学(武汉)地质调查研究院湖北武汉430074 中国地质大学(武汉)环境学院湖北武汉430078

以长江中游天鹅洲故道牛轭湖湿地为研究对象,研究了长江中游牛轭湖湿地内外侧C3、C5两个典型钻孔沉积物中砷、铁赋存形态和有机质组成差异,并结合内外侧沉积环境的差异,查明了牛轭湖湿地内外侧不同沉积环境中铁-有机质耦合作用对含水层... 详细信息

以长江中游天鹅洲故道牛轭湖湿地为研究对象,研究了长江中游牛轭湖湿地内外侧C3、C5两个典型钻孔沉积物中砷、铁赋存形态和有机质组成差异,并结合内外侧沉积环境的差异,查明了牛轭湖湿地内外侧不同沉积环境中铁-有机质耦合作用对含水层沉积物中砷赋存形态的影响。结果表明:牛轭湖湿地外侧C3钻孔0~<10m浅层沉积物中含有更多的吸附在无定形铁氧化物和腐殖质类有机质上的强吸附态砷,牛轭湖湿地内侧C5钻孔沉积物中含有更多与硅酸盐铁结合的低活性砷;牛轭湖湿地外侧浅层沉积物中富含黏土矿物以及粒径偏细、风化程度较高的湖相沉积环境使得铁-有机质-砷共同富集,牛轭湖湿地内侧沉积物粒径偏粗、风化程度偏低的河流相沉积环境不利于活性砷和黏土矿物、有机质的赋存。

关键词：长江中游牛轭湖湿地沉积物砷形态铁氧化物有机质

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Research and Practice on the Construction of Professional Cluster in Application-Oriented Local Undergraduate Universities:Taking Environ-mental Chemical Engineering Professional Cluster in Pingdingshan University as an Example

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Asian Agricultural Research 2024年第2期16卷 36-39,42页

作者： Yanjiao li Jiafei SU Xiaonan HU Hongsheng QIAN Weishuang TONG Shiping CHENG lihua XIE Zhilu ZHANG School of Chemical and Environmental Engineering Pingdingshan UniversityPingdingshan 467000China Henan Jingtong Glass Co. Ltd.Pingdingshan 467000China

Based on the analysis of the importance of professional cluster construction by ecological theory,with the change of social demand for talents,this paper explores the practice of environmental chemical professional cluster construction in Pingdingshan University,including gradually perfecting teaching conditions and reforming teaching mode,breaking through the limitations of resources,integrating the boundaries of colleges and departments,integrating multiple resources,innovating systems and mechanisms,reconstructing professional clusters,decon-structing professional connotations,reorganizing curriculum systems,etc.,in order to better build the ecological chain network of education in application-oriented colleges and universities,realize the deep integration of industry and education,train future-oriented interdisciplinary applied talents of new engineering,and realize the construction of characteristic professional cluster in application-oriented colleges.

关键词： Professional cluster Industrial cluster Talent demand Resource integration Structural adjustment Undergraduate universities

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细粒沉积岩测井评价研究进展

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石油与天然气地质 2024年第4期45卷 954-978页

作者：庞小娇王贵文岳大力李栋李红斌王重阳匡立春赖锦油气资源与工程全国重点实验室中国石油大学(北京) 北京102249 中国石油大学(北京)地球科学学院北京102249

细粒沉积岩是致密油气、页岩油气的烃源岩层和储集层,是石油地质研究的重点和前沿领域,测井评价细粒沉积岩在非常规油气勘探开发中具有非常重要的意义。通过系统分析国内外细粒沉积岩测井评价技术进展,研究认为:细粒沉积岩在常规测井基... 详细信息

细粒沉积岩是致密油气、页岩油气的烃源岩层和储集层,是石油地质研究的重点和前沿领域,测井评价细粒沉积岩在非常规油气勘探开发中具有非常重要的意义。通过系统分析国内外细粒沉积岩测井评价技术进展,研究认为:细粒沉积岩在常规测井基础上结合新技术测井开展了岩性、物性、电性、含油性、可动性、润湿性、脆性、烃源岩特性和地应力各向异性等“七性+”特性评价。进一步发展为细粒沉积岩储集性、含油性、可动性和可压性“新四性”评价方法。依据岩性、岩相、孔隙类型和微观孔隙结构、页理、总孔隙度和有效孔隙度等参数评价细粒沉积岩储集性。根据黏土矿物分布、TOC、游离烃含量、含油饱和度、赋存状态及可动油量等参数评价细粒沉积岩含油性。通过成熟度、地层压力、原油密度、原油黏度及气/油比等参数评价细粒沉积岩油可动性。依据黏土矿物成分和含量、脆性矿物成分和含量、杨氏模量、泊松比及最大和最小主应力等参数评价细粒沉积岩可压性。通过成像测井切片技术实现细粒沉积岩米级、毫米级甚至微米级纹层的人工识别与评价。用测井资料开展细粒沉积岩岩相识别与评价。细粒沉积岩测井从常规测井法、新技术测井法向基于数学统计的人工智能法发展。

关键词：甜点分级测井评价非常规油气储层细粒沉积岩

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核苷(酸)类似物联合聚乙二醇干扰素治疗慢性乙型肝炎实现临床治愈的影响因素分析

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中华临床感染病杂志 2024年第2期17卷 126-132页

作者：胡晓宇季佳李兰娟浙江大学医学院附属第一医院传染病重症诊治全国重点实验室杭州310003

目的探究核苷(酸)类似物[nucleos(t)ide analogues,NAs]联合聚乙二醇干扰素(pegylated interferon,Peg IFN)α-2a治疗慢性乙型肝炎(chronic hepatitis B,CHB)实现临床治愈的影响因素。方法收集2013年1月1日至2023年12月1日在浙江大学医学院附属第一医院感染科门诊就诊并接受NAs与Peg IFNα-2a联合治疗≥48周的141例CHB患者临床资料,并进行回顾性分析。根据疗效分为临床治愈组(n=45)和临床未治愈组(n=96),通过多因素Logistic回归分析临床治愈的影响因素。结果多因素分析显示,基线HBsAg1 lg IU/mL(OR=0.114,95%CI 0.027~0.484,P=0.003)、使用经治策略(OR=0.351,95%CI 0.128~0.960,P=0.041)是预测联合治疗疗效的影响因素。结论经治策略疗效优于初治策略,治疗基线HBsAg水平<1500 IU/mL的病例相较基线水平高者更有希望获得临床治愈,基础疗程建议为48周,并可在48周时根据HBsAg下降程度评估是否延长治疗时间。

关键词：慢性乙型肝炎核苷(酸)类似物聚乙二醇干扰素α-2a 临床治愈

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达格列净联合二甲双胍治疗2型糖尿病的效果及安全性分析

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糖尿病新世界 2024年第5期27卷 87-90页

作者：王丽李振张双济南市济阳区中医医院药剂科山东济南251400 济南市天桥人民医院药剂科山东济南250031

目的探讨达格列净、二甲双胍共同应用在2型糖尿病(Type 2 Diabetes Mellitus,T2DM)临床治疗中的疗效和安全性。方法选取济南市济阳区中医医院于2021年10月—2023年10月收治的94例T2DM患者为研究对象,随机数表法分为观察组及对照组,各47... 详细信息

目的探讨达格列净、二甲双胍共同应用在2型糖尿病(Type 2 Diabetes Mellitus,T2DM)临床治疗中的疗效和安全性。方法选取济南市济阳区中医医院于2021年10月—2023年10月收治的94例T2DM患者为研究对象,随机数表法分为观察组及对照组,各47例。对照组单独使用二甲双胍治疗,研究组使用达格列净与二甲双胍联合治疗,比较两组治疗效果及安全性。结果治疗后,研究组患者空腹血糖、餐后2 h血糖、糖化血红蛋白水平低于对照组,差异有统计学意义(P均0.05)。结论在2型糖尿病患者的临床治疗过程中达格列净、二甲双胍共同应用具有更加明显的疗效,可改善患者的血糖和血脂指标水平,提升患者生活的质量,且具有较高的安全性。

关键词：达格列净二甲双胍 2型糖尿病临床疗效安全性

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Functional analysis of flavanone 3-hydroxylase(F3H)from Dendrobium officinale,which confers abiotic stress tolerance

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Horticultural Plant Journal 2023年第2期9卷 356-364页

作者： Can Si Wei Dong Jaime A.Teixeira da silva Chunmei He Zhenming Yu Mingze Zhang Lei Huang Conghui Zhao Danqi Zeng Chuanmao li Shengxiang Qiu Jun Duan Key laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement&Guangdong Provincial Key laboratory of Applied BotanySouth China Botanical GardenChinese Academy of SciencesGuangzhouGuangdong 510650China University of Chinese Academy of Sciences Beijing 100049China College of life Science and Technology Xi An Jiao Tong UniversityXi’anShaanxi 710049China Independent Researcher Miki-choKagawa-kenJapan Guangzhou Keneng Cosmetic Scientific Research Co. LtdGuanghzouGuangdong 510650China

Flavonoids are important bioactive components in Dendrobium officinale,a medicinal *** are involved in many biological activities,including protecting plants against biotic and abiotic *** on the key genes related to flavonoid biosynthesis in *** is *** this study,one of the key flavonoid biosynthesis genes,flavanone 3-hydroxylase(F3H),was characterized from *** open reading frame of DoF3H was 1134 bp long and it encoded a 377-amino acid *** DoF3H protein showed considerably high homology with F3H proteins from other plant species and shared a common evolutionary ancestor with other ***3H transcripts were detected in different organs of adult plants and mainly accumulated in flowers,followed by roots,stems and leaves,a pattern that was similar to the content of *** DoF3H protein,which was localized in the cytosol,could convert naringenin to *** mRNA levels of DoF3H were significantly induced by salt and cold ***,the heterologous expression of DoF3H in Escherichia coli conferred it higher tolerance to salt and cold *** results provide insight into the molecular function of DoF3H in the biosynthesis of flavonoids,and provide a new application for improvement of abiotic tolerance in ***.

关键词： Dendrobium officinale Flavanone 3-hydroxylase Dihydrokaempferol Salt stress Cold stress

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Early Cretaceous Climate Changes Recorded in Magnetic Susceptibility and Color Index Variations of the Lower liupanshan Group, Central China

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Acta Geologica Sinica(English Edition) 2016年第3期90卷 1011-1023页

作者： DAI Shuang ZHU Qiang HUANG Yongbo DA silva Anne-Christine ZHAO Jie liU Junwei KONG li PENG Dongxiang LUO lingling YAN Ningyun WANG Wenjie ZHANG Xiang Key Laboratory of Western China's Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou University Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Shandong Institute of geological survey Pétrologie sédimentaire B20Allée du Six Ao t12Quartier AgoraUniversitéde Liège State Key Laboratory of Continental Dynamics Department of GeologyNorthwest University No.4 Institute of Geological & Mineral Resources Survey of Henan

This study carried out comprehensive analysis on sedimentology, magnetic susceptibility （7of） and color data of the continental sediments of the liupanshan Group in Central China so as to obtain climatic change information during the 129.14-122.98 Ma interval. Based on the results of the Xlf and of the redness （a＊）, the section can be divided into two segments：（1） 129.14-126.3 Ma, with the lowest Xlf values and strongly variable relatively high values of redness and （2） 126.3-122.98 Ma, with high Elf values and relatively low redness. Analysis of the lithology and facies as well as the magnetic minerals and their contents points to a detrital origin of the magnetic minerals and this allow us to interpret the relationship between magnetic susceptibility variations and climate changes. Our study shows that the climate was significantly dry and hot during the whole studied interval although the interval between 126.3 Ma and 122.98 was a little bit cooler with increased humidity.

关键词： magnetic susceptibility color index climate change liupanshan Group Early Cretaceous

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In vitro antileishmanial effects of Physalis angulata root extract on Leishmania infantum

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Journal of Integrative Medicine 2018年第6期16卷 404-410页

作者： Bruno Jose Martins Da silva Sandro Wilson Gomes Pereira Ana Paula Drummond Rodrigues Jose Luiz Martins Do Nascimento Edilene Oliveira silva Laboratory of Structural Biology Institute of Biological SciencesFederal University of PardBelemPard 66075-110Brazil National Institute of Science and Technology in Structural Biology and Bioimaging(INCT-INBEB) Rio de Janeiro 21941-901Brazil Laboratory of Electron Microscopy Department of Health SurveillanceMinistry of HealthEvandro Chagas InstituteBelemPard 66087-082Brazil Laboratory of Molecular and Cellular Neurochemistry Institute of Biological SciencesFederal University of PardBelemPard 66075-110Brazil National Institute of Science and Technology in Neuroimmunomodulation(INCT-nim) Rio de Janeiro 21040-360Brazil

Objective： In the present study, we evaluated the effects of the aqueous extract of Physalis angulata root （AEPa） on Leishmania infanturn proliferation, morphology, and the driving mechanism in leishmanicidal activity and modulatory action on macrophages. Methods： I., infantum promastigotes were treated with 50 and 100 μg/mL AEPa for 72 h and then antipro- mastigote assay was performed by counts in a Newbauer chamber, morphological changes were analyzed by transmission electron microscopy and the mechanism of the leishmanicidal activity was detected. In addition, macrophages were infected with L. infantum and were used to evaluate anti-amastigote activity of AEPa and effects of AEPa on cytokine secretion after 72-hour treatment. Results： Treatment with AEPa reduced the numbers ofL infantum promastigotes （50% inhibitory concen- tration （ICso） = 65.9μg/mL; selectivity index （SI）= 22.1） and amastigotes （ICso = 37.9 μg/mL; SI = 38.5） compared with the untreated control. Amphotericin B reduced 100% of the promastigote numbers after 72 h of treatment （IC50 = 0.2μg/mL）. AEPa induced several morphological changes and increased the production of reactive oxygen species and apoptotic death in promastigotes after treating for 72 h. AEPa （100 μg/mL） promoted tumor necrosis factor-α secretion in macrophages infected with L. infantum after 72 h of treatment, but did not induce an increase in this cytokine in noninfected macrophages. In addition, AEPa showed no cytotoxic effect on J774-A1 cells （50% cytotoxic concentration 〉1000μg/mL）. Conclusion： AEPa presented antileishmanial activity against the promastigotes and amastigotes of I.. infantum without macrophage cytotoxicity; these results show that natural products such as P. angulata have leishmanicidal potential and in the future may be an alternative treatment for leishmaniasis.

关键词： Leishmanicidal activity Leishmania infantum Reactive oxygen species Apoptosis Physalis angulata

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Red-emitting CaWO4:Eu^(3+),Tm^(3+)phosphor for solid-state lighting:Luminescent properties and morphology evolution

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Journal of Rare Earths 2022年第2期40卷 226-233,I0002页

作者： L.X.Lovisa I.M.P.da silva A.A.G.Santiago M.Siu li E.Longo C.A.Paskocimas M.R.D.Bomio F.V.Motta Institute of Physics and Chemistry.Federal University of Itajubd(UNIFEI) ItajubdMG37500-903Brazil LSQM-Laboratory of Chemical Synthesis of Materials-Department of Materials Engineering Federal University of Rio Grande Do NorteP.O.Box 152459078-900Natal RNBrazil IFSC USPAv.Trabalhador Sao Carlense400CEP 13566-590Sao CarlosSPBrazil CDMF-liEC UFSCarP.O.Box 67613565-905Sao Carlos.SPBrazil

CaWO_(4):xEu^(3+),yTm^(3+)crystals were obtained by facile synthesis at low temperature by the microwaveassisted hydrothermal method(MAH).The phase formation,morphology,luminescent properties and ene rgy transfer were *** X-ray diffraction(XRD)re sults show the formation of a scheelitelike tetragonal structure without the presence of secondary *** growth mechanism of hierarchical micro structures based on self-assembly and Ostwald-ripening processes was evaluated,obtaining different types of *** luminescence spectra of CaWO_(4):Eu^(3+),Tm^(3+)at 325 nm excitation show the predominance of red emission at the 5 D0→7 F2(Eu^(3+))transition at 624 *** feature signals dominant behavior of the electric dipole *** presence of Tm^(3+)is notably evident in the absorption spectra by the related excitation transitions:3 H6→1 G4,3 H6→3 F3 and 3 H6→3 *** parameters are discussed to characterize CaWO_(4):Eu^(3+),Tm^(3+)*** study of the emission spectrum as a function of the concentration of Eu^(3+)(x mol%)and Tm^(3+)(y mol%)indicates that the CaWO_(4):Eu^(3+),Tm^(3+)phosphors show stronger red emission intensity and exhibit the CIE value of x=0.63 and y=*** photoluminescence results show 97%high color purity for CaWO_(4):4 mol%Eu^(3+),a high CRI(92%)and a low CCT of 1085 *** results demonstrate that the CaWO_(4):Eu^(3+),Tm^(3+)red phosphors are promising as color converters for application in white light-emitting diodes and display devices.

关键词： CaWO_(4):Eu^(3+),Tm^(3+)microwave-assisted hydrothermal method Photoluminescence Red phosphor Rare earths

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