检索结果-南通市图书馆

Photoelectrocatalytic hydrogen evolution and synchronous degradation of organic pollutants by pg-c_(3)N_(4)/β-FeOOH S-scheme heterojunction

引用

Sc.ence china(Technological Sc.ences) 2024年第4期67卷 1238-1252页

作者： LI XiBao HAN Tao ZHOU YingTang XIE Yu LUO YiDan HUANG juntong c.en Zhi DenG Fang School of Materials Sc.ence and engineering Nanchang Hangkong UniversityNanchang 330063China National-Local Joint engineering Research center of Heavy Metal Pollutants control and Resource Utilization Nanchang Hangkong UniversityNanchang 330063China Zhejiang Key Laboratory of Petrochemical environmental Pollution control National Engineering Research Center for Marine AquacultureMarine Science and Technology CollegeZhejiang Ocean UniversityZhoushan 316022China

crafting photoelectrocatalytic materials with robust oxidation-reduction properties for simultaneous hydrogen evolution and pollutant degradation poses a formidable *** this study,a pg-c_(3)N_(4)/β-FeOOH S-scheme heterostructure with a special energy band structure was developed by anchoring porous pg-c_(3)N_(4)on needle shapedβ-*** as a hole extraction layer,needle-leaf-likeβ-FeOOH can facilitate effic.ent hole migration and enhance charge ***,the optimized 0.2-pg-c_(3)N_(4)/β-FeOOH could degrade 78%of ofloxacin(OFLO)in 90 *** organic pollutants could absorb a large number of holes,which prompted a greater proportion of photogenerated electrons to actively participate in the hydrogen evolution reaction at the ***,the hydrogen production of 0.2-pg-c_(3)N_(4)/β-FeOOH reached 1452.88μmol cm^(-2)h^(-1),exhibiting a notable increase of 61.81-165.12μmol cm^(-2)h^(-1)compared with that in the absence of *** and theoretical calculation results underscore that this investigation is grounded in a distinctive electron and hole dual channel transfer *** findings offer novel insights for the future development of S-scheme heterojunction photoelectrocatalytic materials capable of concurrently degrading pollutants and promoting hydrogen evolution.

关键词： photoelectrocatalysis hydrogen evolution degradation synchronous S-scheme heterojunction

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Pleistocene glaciation advances the cryptic speciation of Stellera chamaejasme *** a major biodiversity hotspot

引用

Journal of Integrative Plant Biology 2024年第6期66卷 1192-1205页

作者： Santosh Kumar Rana Hum Kala Rana Jacob BLandis Tianhui Kuang juntong c.en Hengchang Wang Tao Deng charles c.Davis Hang Sun cAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Arkansas Biosc.ences Institute Arkansas State UniversityJonesboroArkansas 72401USA School of Integrative Plant Sc.ence Section of Plant Biology and the L.H.Bailey HortoriumCornell UniversityIthacaNew York 14853USA BTI computational Biology center Boyce Thompson InstituteIthacaNew York 14853USA cAS Key Laboratory of Plant Germplasm enhancement and Specialty Agriculture Chinese Academy of SciencesWuhan Botanical GardenWuhan 430074China Department of Organismic and Evolutionary Biology HerbariaHarvard UniversityCambridgeMassachusetts 02138USA

The mountains of Southwest china comprise a significant large mountain range and biodiversity hotspot imperiled by global climate *** high species diversity in this mountain system has long been attributed to a complex set of factors,and recent large-scale macroevolutionary investigations have placed a broad timeline on plant diversification that stretches from 10 million years ago(Mya)to the *** our increasing understanding of the temporal mode of speciation,finer-scale populationlevel investigations are lacking to better refine these temporal trends and illuminate the abiotic and biotic influences of cryptic *** is largely due to the dearth of organismal sampling among closely related species and populations,spanning the incredible size and topological heterogeneity of this *** study dives into these evolutionary dynamics of speciation using genomic and ecomorphological data of Stellera chamaejasme *** identified four previously unrecognized cryptic species having indistinct morphological traits and large metapopulation of evolving lineages,suggesting a more recent diversification(~2.67-0.90 Mya),largely influenced by Pleistocene glaciation and biotic *** factors likely influenced allopatric speciation and advocated cyclical warming–cooling episodes along elevational gradients during the *** study refines the evolutionary timeline to be much younger than previously implicated and raises the concern that projected future warming may influence the alpine species diversity,necessitating increased conservation efforts.

关键词： cryptic speciation glacial-interglacial Hengduan Mountains north-south migration Stellera chamaejasme

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

corrigendum to“3cpro of FMDV inhibits type II interferon-stimulated JAK-STAT signaling pathway by blocking STAT1 nuclear translocation”[Virol Sin 38(2023)387–397]

引用

Virologica Sinica 2024年第2期39卷 351-354页

作者： Xiangju Wu Lei c.en chao Sui Yue Hu Dandan Jiang Fan Yang Laura c.Miller juntong Li Xiaoyan cong Nataliia Hrabc.enko changhee Lee Yijun Du Jing Qi Shandong Key Laboratory of Animal Disease control and Breeding Key Laboratory of Livestock and Poultry Multi-omics of MARAInstitute of Animal Science and Veterinary MedicineInstitute of Crop Germplasm ResourcesShandong Academy of Agricultural SciencesJinan250100China college of Life Sc.ence Shandong Normal UniversityJinan250358China State Key Laboratory of Veterinary Etiological Biology National Foot and Mouth Disease Reference LaboratoryKey Laboratory of Animal Virology of Ministry of AgricultureLanzhou Veterinary Research InstituteChinese Academy of Agricultural SciencesLanzhou730050China Department of Diagnostic Medicine and Pathobiology College of Veterinary MedicineKansas State UniversityManhattanKS66506USA college of Veterinary Medicine and Virus Vaccine Research center Gyeongsang National UniversityJinju52828Republic of Korea

Due to our negligence,the original version of this article,published online on Mar 14,2023,contained some mistakes in several *** Fig.2D,the positions of the bands for protein 3A and 3B were incorrectly *** has been m... 详细信息

关键词： STAT1 FMDV bands

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国两种紫堇属植物新记录——中尼黄堇和厚叶紫堇

引用

植物科学学报 2024年第3期42卷 275-281页

作者：杨舜铨陈俊通邓涛李志敏云南师范大学生命科学学院昆明650500 中国科学院昆明植物研究所植物多样性与特色经济作物全国重点实验室昆明650201

在对2018年采自西藏自治区的高山冰缘带紫堇属(corydalis)植物的标本进行鉴定时,发现两个中国新记录种——中尼黄堇(*** Prain)和厚叶紫堇(*** Royle),本文根据标本首次提供了物种详细的中文形态描述和彩色照片。中尼黄堇与角状黄堇(***... 详细信息

在对2018年采自西藏自治区的高山冰缘带紫堇属(corydalis)植物的标本进行鉴定时,发现两个中国新记录种——中尼黄堇(*** Prain)和厚叶紫堇(*** Royle),本文根据标本首次提供了物种详细的中文形态描述和彩色照片。中尼黄堇与角状黄堇(*** Royle)在形态上较为相似,主要区别在于中尼黄堇茎纤细;外花瓣龙骨状突起的先端部位具暗紫红色斑块或无;上花瓣的瓣片宽展,3裂,具极矮的鸡冠状突起;距平直,圆筒状,与花瓣片近等长;下花瓣近菱形,先端骤缩为短尖头;柱头方形,具10个乳突。厚叶紫堇在形态上与囊果紫堇(*** Ludlow)相似,区别在于其具有不同的叶形及叶裂、总状花序、不增粗果梗。此次新发现丰富了西藏紫堇属植物的物种多样性,为紫堇属植物的区系研究和资源开发提供了新的数据资料。

关键词：中尼黄堇厚叶紫堇中国新记录罂粟科

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Observation of ambipolar photoresponse from 2D MoS_(2)/MXene heterostructure

引用

Nano Research 2021年第10期14卷 3416-3422页

作者： juntong Zhu Hao Wang Liang Ma Guifu Zou college of energy Soochow Institute for Energy and Materials Innovationsand Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006China Research Institute of Superconductor Electronics Nanjing UniversityNanjing 210023China School of Physical Sc.ences University of Chinese Academy of SciencesBeijing 100190China

Two-dimensional materials have been demonstrated as promising toolboxes for *** metal carbides and nitrides(MXenes),members of an emerging family of two-dimensional materials,have drawn extensive attention in optoelectronics owing to their excellent conductivity and tunable electronic ***,a photodetector based on the two-dimensional van der Waals heterostructure of Ti_(3)c_(2)T_(x)MXene and a MoS_(2)monolayer was constructed to observe the ambipolar photoresponse,which showed a positive photoresponse in the visible spectrum(500-700 nm)and a negative photoresponse at longer wavelengths(700-800 nm).The device exhibited a high negative responsivity of 1.9 A/W and a detectivity of 2.1×10^(10)Jones under 750 nm light *** experiments demonstrate that the negative photoresponse arises from the heterostructureinduced trap energy level,which confines the excited photoelectrons and leads to an inverse *** work demonstrates a unique optoelectronic phenomenon in MoS_(2)/MXene heterostructures and provides valuable insights into the development of new photodetection materials.

关键词： MXene MoS_(2) two-dimensional heterostructure photodetector ambipolar photoresponse

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

胶东地区黄金矿山细尾砂胶结充填应用研究

引用

黄金科学技术 2024年第3期32卷 425-436页

作者：胡松涛朱庚杰张军童徐世群寇云鹏山东黄金集团有限公司山东济南250000 山东黄金矿业科技有限公司山东济南250101 山金重工有限公司山东莱州261400

为探究胶东地区黄金矿山细尾砂充填可行性,分析了细尾砂粒级和矿物特征,使用新型胶凝材料制备了细尾砂充填料,通过开展流变和管路输送性能试验,研究了充填料流动性,分析了充填体强度及其形成机理。结果表明:(1)比表面积大和黏土矿物含... 详细信息

为探究胶东地区黄金矿山细尾砂充填可行性,分析了细尾砂粒级和矿物特征,使用新型胶凝材料制备了细尾砂充填料,通过开展流变和管路输送性能试验,研究了充填料流动性,分析了充填体强度及其形成机理。结果表明:(1)比表面积大和黏土矿物含量高是造成细尾砂充填料流动阻力大和强度低的内因;(2)细尾砂料浆更易出现层流,且层流—紊流临界流速随浓度的增加先缓慢增长再快速增长,结合流变建立的层流—紊流临界流速模型结果可指导控制管路输送流速;(3)随着钙矾石(AFt)和水化硅铝酸钙(c-AS-H)的生成,细尾砂料浆自由水转化成结合水,同时充填体结构在水化产物的填充和包裹作用下不断致密,二者促进了充填体强度的增长。该研究证明通过确定合适浓度和使用新型胶凝材料能够获得满足矿山需求的细尾砂充填体强度。

关键词：细尾砂物化性质矿渣基胶凝材料管输性能水化产物微观结构强度

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Increased Oxygen Evolution Activity in pH-Universal Electrocatalyst: Urea-Modified NiFecocN Medium-entropy Alloy

引用

chinese Journal of chemistry 2023年第23期41卷 3290-3298页

作者： Hongwei Lv Zhiguo Ye Feng Pei Xinyuan Peng juntong Huang Duosheng Li Zhong Jin School of Material Sc.ence and engineering Nanchang Hangkong University696#FengHeNan RoadNanchangJiangxi330063 China State Grid Jiangxi Electric Power Research Institute NanchangJiangxi330096 China MOE Key Laboratory of Mesoscopic chemistry MOE Key Laboratory of High Performance Polymer Materials and TechnologyJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjingJiangsu210023 China

The kinetic process of a slow oxygen evolution reaction (OER) always constrains the effic.ency of overall water electrolysis for H2 *** particular,nonprecious metal electrodes for the OER have difficulty in possessing excellent electrocatalytic activity and stability in pH-universal media *** this work,urea is first used as a pore-forming agent and active c/N source to fabricate a nanoporous NiFecocN medium-entropy alloy (MEA) by high-temperature sintering based on the nanoscale Kirkendall *** NiFecocN MEA achieves an overpotential of 432 mV at a current density of 10 mA·cm^(-2) and a lower Tafel slope of 52.4 mV·dec^(-1) compared to the IrO_(2)/Ti electrode (58.6 mV·dec^(-1)) in a 0.5 mol/L H_(2)SO_(4) *** a 1 mol/L KOH solution,the NiFecocN MEA obtains an overpotential of 175 mV for 10 mA·cm^(-2) and a Tafel slope of 40.8 mV·dec^(-1),which is better than IrO_(2)/Ni *** work proves a novel strategy to design and prepare nanoporous MEA materials with desirable c/N species,which provides promising prospects for the industrial production of H2 energy.

关键词： Oxygen evolution reaction Medium-entropy alloy Urea Electrocatalytic activity Stability

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中药复方益糖康对db/db小鼠小肠肠道屏障损伤的修复作用及机制探讨

引用

辽宁中医药大学学报 2024年第7期26卷 31-36页

作者：陈胡蓉安继仁杨宇峰刘军彤石岩辽宁中医药大学辽宁沈阳110847 河北中医药大学河北石家庄050200

目的观察中药复方益糖康对db/db小鼠小肠炎症的抑制作用及小肠黏膜损伤的修复作用并探讨其作用机制。方法将24只db/db小鼠随机分为模型组(db/db组)、益糖康组(YTK组)以及阳性药(选用利拉鲁肽Liraglutide)对照组(Liraglutide组),另选择8... 详细信息

目的观察中药复方益糖康对db/db小鼠小肠炎症的抑制作用及小肠黏膜损伤的修复作用并探讨其作用机制。方法将24只db/db小鼠随机分为模型组(db/db组)、益糖康组(YTK组)以及阳性药(选用利拉鲁肽Liraglutide)对照组(Liraglutide组),另选择8只c57BL/6J小鼠为对照组(con组)。YTK组小鼠予以益糖康煎剂灌胃30 g·kg^(-1)·d^(-1),Liraglutide组每日腹腔注射利拉鲁肽200μg·kg^(-1)·d^(-1),con组和db/db组给予等量蒸馏水灌胃,给药时间共计5周。药物处理5周后,对小鼠禁食12 h,取小鼠尾尖血进行血糖检测,之后进行动物取材和组织分离。用ELISA检测白细胞介素-1β(IL-1β)、白细胞介素-6(IL-6)表达;免疫荧光法检测Occludin、F4/80、cD86、cD206表达;Western blot检测法检测小肠Occludin、ZO-1、TNF-α蛋白表达。结果与con组相比,db/db组小鼠血糖明显升高(Pccludin和ZO-1表达较明显增强(Pccludin蛋白表达与免疫荧光趋势一致(Pcon组相比,db/db组小鼠血清炎症因子IL-6与IL-1β均明显升高(Pcon组比较,db/db小鼠小肠黏膜及黏膜下层IL-1β、IL-6表达量明显增强(PcD86和cD206在con组小鼠小肠表达较弱;在db/db组表达明显增强(PcD86表达更为显著,而Liraglutide组与YTK组明显改善(PcD86和cD206等巨噬细胞相关蛋白的表达,缓解小肠巨噬细胞聚集和活化,下调小肠IL-Iβ、IL-6和TNF-α等炎症因子,上调肠通道蛋白Occludin和ZO-1表达,修复db/db小鼠小肠黏膜损伤。

关键词：糖尿病小肠炎症巨噬细胞益糖康肠道屏障

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Experimental and DFT studies of flower-like Ni-doped Mo_(2)c on carbon fiber paper:A highly effic.ent and robust HER electrocatalyst modulated by Ni(NO_(3))_(2)concentration

引用

Journal of Advanced ceramics 2022年第8期11卷 1294-1306页

作者： Lei ZHANG Zhihui HU juntong HUANG Zhi c.en Xibao LIa Zhijun FenG Huiyong YANG Saifang HUANG Ruiying LUO School of Materials Sc.ence and engineering Nanchang Hangkong UniversityNanchang 330063China School of Materials Sc.ence and engineering Jiangsu University of Science and TechnologyZhenjiang 212003China Research Institute for Frontier Sc.ence Beihang UniversityBeijing 100191China

Developing highly effic.ent and stable non-precious metal catalysts for water splitting is urgently *** this work,we report a facile one-step molten salt method for the preparation of self-supporting Ni-doped Mo_(2)c on carbon fiber paper(Ni–Mo_(2)ccB/cFP)for hydrogen evolution reaction(HER).The effects of nickel nitrate concentration on the phase composition,morphology,and electrocatalytic HER performance of Ni-doped Mo_(2)c@cFP electrocatalysts was *** the continuous increase of Ni(NO_(3))_(2)concentration,the morphology of Mo_(2)c gradually changes from granular to flower-like,providing larger specific surface area and more active *** nickel(Ni)into the crystal lattice of Mo_(2)c largely reduces the impedance of the electrocatalysts and enhances their electrocatalytic *** as-developed Mo_(2)c–3 M Ni(NO_(3))_(2)/cFP electrocatalyst exhibits high catalytic activity with a small overpotential of 56 mV at a current density of 10 mA·cm^(-2).This catalyst has a fast HER kinetics,as demonstrated by a very small Tafel slope of 27.4 mV·dec^(-1),and persistent long-term stability.A further higher Ni concentration had an adverse effect on the electrocatalytic *** functional theory(DFT)calculations further verified the experimental *** doping could reduce the binding energy of Mo–H,facilitating the desorption of the adsorbed hydrogen(Hads)on the surface,thereby improving the intrinsic catalytic activity of Ni-doped Mo_(2)c-based ***,excessive Ni doping would inhibit the catalytic activity of the *** work not only provides a simple strategy for the facile preparation of non-precious metal electrocatalysts with high catalytic activity,but also unveils the influence mechanism of the Ni doping concentration on the HER performance of the electrocatalysts from the theoretical perspective.

关键词： Mo_(2)c@cFP electrocatalyst nickel(Ni)doping hydrogen evolution reaction(HER) water splitting molten salt method

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

基于改进的Googlenet-ResNet算法的路基病害智能分类方法

引用

计算机测量与控制 2024年第8期32卷 250-256,294页

作者：陈登峰杨小燕张温何拓航陈俊彤西安建筑科技大学建筑设备科学与工程学院西安710000 西安建筑科技大学管理学院西安710000 西安建筑科技大学公共管理学院西安710000

针对路基病害分类算法存在的复杂病害辨识难度大、多视图雷达图像特征利用不充分等问题,提出一种基于改进的Googlenet-ResNet算法的路基病害智能分类方法;首先,引入坐标注意力和改进的Inception模块对Googlenet网络结构进行优化;然后,... 详细信息

针对路基病害分类算法存在的复杂病害辨识难度大、多视图雷达图像特征利用不充分等问题,提出一种基于改进的Googlenet-ResNet算法的路基病害智能分类方法;首先,引入坐标注意力和改进的Inception模块对Googlenet网络结构进行优化;然后,利用改进的Googlenet学习c-scan数据特征剔除非目标病害,实现病害目标的粗分类;最后,将分类成病害的b-scan数据输入基于迁移学习的ResNet50,实现病害的细分类;实验表明,改进的Googlenet进行病害粗分类的准确率可达到98.2%,检测速度可达90.9 fps;基于迁移学习的ResNet50进行病害细分类的准确率可达90.5%,检测速度可达52.6 fps;该算法的准确率比单独的改进的Googlenet网络高10.1%,比单独的ResNet50网络高7.4%,有效地提高了道路路基病害的识别精度与效率。

关键词：道路工程路基病害识别级联神经网络多视图雷达图像三维探地雷达

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：