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Bibliometric analysis of the status and trend of biological soil crusts research from 1912 to 2023

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Research in Cold and Arid Regions 2024年第2期16卷 98-108页

作者： xiaoju Yang FaSi Wu Long li Qinglin Guo ZongRen Yu SongCong Chen XueYong Zhao Naiman Desertification Research Station Northwest Institute of Eco-Environment and ResourcesChinese Academy of Sciences University of Chinese Academy of Sciences National Research Center for Conservation of Ancient Wall Paintings and Earthen Sites Dunhuang Academy Gansu Provincial Research Center for Conservation of Dunhuang Cultural Heritage Cultural Heritage Conservation and Design Consulting Co. Ltd. of Mogao Grottoes

Biological soil crusts(BSCs) play an important role in soil development and ecological function, and it is more important for quantitatively analyzing the processes and trends of BSCs to identify the advantages and disadvantages of BSCs research for the development and application of BSCs theory. Bibliometric analysis of 2,186BSCs literatures from Web of Science showed an exponential growth trend, as China and the United States as the top 2 in terms of publication volume. High quality publications are mainly from European and American countries, such as the United States, Germany and Spain. The top 3 publishers are Journal of Arid Environments, Soil Biology & Biochemistry and Plant and Soil, and disciplines include ecology, environmental science, and soil science, etc.. Research institutions mainly affiliate to the Chinese Academy of Sciences, United States Department of the Interior, United States Geological Survey, Hebrew University of Jerusalem, Consejo Superior de Investigaciones Cientificas, and Universidad Rey Juan Carlos. Authors mainly come from United States, Israel, Spain and China. Funds are mainly from the National Natural Science Foundation of China, Spanish Government,Chinese Academy of Sciences, and National Science Foundation of the United States. Biological soil crusts(biocrusts, cyanobacteria, lichens, moss crusts, bryophytes), drylands, climate change, photosynthesis and desert are high-frequency keywords. Future research will focus on the driving mechanisms of BSCs on global biogeochemical cycles, maintaining global biodiversity on important ecological processes, global C, N, and P cycles. The impact on biological invasion, sandstorms, and water balance, multifunctional and reciprocal mechanisms for maintaining the stability of desert and sandy ecosystems, and impact on the formulation of management policies for arid ecosystems, corresponding to global climate change, and the estimation of regional, local, and microscale distribution of BSCs based on machine deep learning modeling gradually fo

关键词： Biological soil crusts Bibliometric analysis Web of science CiteSpace VOSviewer

Development of a 2D spatial displacement estimation method for turbulence velocimetry of the gas puff imaging system on EAST

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Plasma Science and Technology 2024年第3期26卷 17-24页

作者：李乐天刘少承颜宁刘晓菊高翔 Anhui University Hefei 230039People's Republic of China Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People's Republic of China

A gas puff imaging(GPI)diagnostic has been developed and operated on EAST since 2012,and the time-delay estimation(TDE)method is used to derive the propagation velocity of fluctuations from the two-dimensional GPI data.However,with the TDE method it is difficult to analyze the data with fast transient events,such as edge-localized mode(ELM).Consequently,a method called the spatial displacement estimation(SDE)algorithm is developed to estimate the turbulence velocity with high temporal resolution.Based on the SDE algorithm,we make some improvements,including an adaptive median filter and super-resolution technology.After the development of the algorithm,a straight-line movement and a curved-line movement are used to test the accuracy of the algorithm,and the calculated speed agrees well with preset speed.This SDE algorithm is applied to the EAST GPI data analysis,and the derived propagation velocity of turbulence is consistent with that from the TDE method,but with much higher temporal resolution.

关键词： gas puff imaging spatial displacement estimation SDE edge turbulence velocity TDE EAST tokamak

Structural and chemical engineering of metal-organic framework-derived nickel disulfide nanosheets as the compacted cathode matrix for lithium-sulfur batteries

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Chinese Journal of Structural Chemistry 2023年第9期42卷 34-40页

作者： Qi Zhang Wenxiang Shen Pengyue li Jinshang Song lingzhi Zhu Enshan Han Ruihu Wang xiaoju li Hebei Key Laboratory of Functional Polymer School of Chemical Engineering and TechnologyHebei University of TechnologyTianjin300130China Fujian Provincial Key Laboratory of Polymer Materials College of Chemistry and Materials ScienceFujian Normal UniversityFuzhou350007China

lithium-sulfur(li–S)batteries are recognized as promising high-energy-density storage systems.It is crucial to develop the compacted sulfur cathodes with high sulfur content and high sulfur loading for practical applications.The metal-containing nanosheets are promising cathode matrix to mediate the accompanying problems,such as low sulfur utilization,unavoidable polysulfides shuttling and poor rate performance.Herein,we develop Ni-MOF-based strategy to fabricate nickel disulfide nanosheets on the reduced graphene oxide surface(NSG).Benefiting from nanosheets structure,strong polysulfides affinity,high electronic conductivity and superior electrocatalytic effect of NSG heterostructure,the resultant electrode exhibits high electrochemical performance with 0.021%capacity decay per cycle in 1000 cycles.Remarkably,the electrode with 88 wt%sulfur content and 5.9 mg cm^(−2) sulfur loading delivers reversible capacity of 945 mA h g^(−1),areal capacity of 6.1 mA h cm^(−2) and volumetric capacity of 997 mA h cm^(−3) at 0.5 C,which is comparable with the state-of-the-art those in the reported energy storage systems.This work provides methodology guidance for the development of cathode matrix to achieve high-energy-density and long-life li–S batteries.

关键词： lithium-sulfur batteries Metal-organic frameworks Nanosheets Nickel disulfide Shuttling effect

Recent advances in non-precious metal electrocatalysts for pH-universal hydrogen evolution reaction

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Green Energy & Environment 2021年第4期6卷 458-478页

作者： Shen Zhang Xing Zhang Yuan Rui Ruihu Wang xiaoju li Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials ScienceFujian Normal UniversityFuzhouFujian350007China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China

Hydrogen production by water electrolysis is a compelling technology to produce fuels and chemicals powered by renewable energy.It is highly desirable to develop cost-effective and durable electrocatalysts for hydrogen evolution reaction(HER).This review has summarized recent progress in mechanism understanding of non-precious metal electrocatalysts for pH-universal HER.The general approaches have been demonstrated to overcome the activity/stability limitations of the electrocatalysts for HER in a broad pH range.The perspectives and challenges for the development of p H-universal HER electrocatalysts have also been proposed.This review sheds light on the design and fabrication of high-performance electrocatalysts for versatile HER-related energy technologies.

关键词： Electrocatalysis Hydrogen evolution reaction Transition metal Nanomaterials Water electrolysis

Facile fabrication of ultrafine nickel-iridium alloy nanoparticles/graphene hybrid with enhanced mass activity and stability for overall water splitting

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Journal of Energy Chemistry 2020年第10期29卷 166-173页

作者： Shen Zhang Xing Zhang Xuerong Shi Feng Zhou Ruihu Wang xiaoju li Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials ScienceFujian Normal UniversityFuzhou 350007FujianChina State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002FujianChina School of Material Engineering Shanghai University of Engineering Science333 Longteng RoadSongjiang DistrictShanghai 201620China

Developing active and durable electrocatalysts for overall water splitting is desirable but challenging to realize sustainable hydrogen production.Here,we report a facile and general method to prepare ultrafine nickel(Ni)-iridium(Ir)alloy nanoparticles/graphene hybrids for overall water splitting.The optimized hybrid with 4.9 wt%Ir exhibits much higher catalytic activity and durability than commercial 20 wt%Ir/C for both oxygen evolution reaction(OER)and hydrogen evolution reaction(HER).Theoretical simulations reveal that the incorporation of Ir in metallic Ni lattice regulates hydrogen adsorption free energy to the optimum level,thus improving HER activity,while in situ generated amorphous Ir-Ni hydr(oxy)oxides around metallic Ni-Ir core have been demonstrated to be the active species under OER conditions,which switches OER rate-determining step to energy-favorable pathway.The overall water splitting electrolyzer assembled by the optimized electrocatalyst shows a low cell voltage of only 1.52 V and excellent stability to deliver a current density of 10 m A cm-2.This work provides a powerful strategy toward general synthesis of ultrafine alloy nanoparticles for high-performance overall water splitting.

关键词： Alloy nanoparticles Iridium Electrocatalysts Water splitting Mass activity

创新思路增强保障超大城市主要农产品供应安全能力

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宏观经济管理 2024年第3期 75-81页

作者：杨杰夏勇赵筱菊杨历成都市发展改革委成都市经济发展研究院(成都市经济信息中心)价格研究所

保障粮食和重要农产品稳定安全供给始终是建设农业强国的头等大事,是牢牢端稳饭碗、应对世界动荡变革、把稳强国复兴主动权、确保国家大局稳定的关键和基础。超大城市人口多、耕地面积少、农产品种养品类受限,保障其主要农产品供应安全... 详细信息

保障粮食和重要农产品稳定安全供给始终是建设农业强国的头等大事,是牢牢端稳饭碗、应对世界动荡变革、把稳强国复兴主动权、确保国家大局稳定的关键和基础。超大城市人口多、耕地面积少、农产品种养品类受限,保障其主要农产品供应安全更具有十分重要的意义。虽然超大城市在农产品自给、流通、应急保障和食品质量安全能力不断增强,但还存在机制尚未健全、流通效率不高、储备能力参差不齐、安全管控隐患犹存等问题,下一步,应创建供需互补智慧调度等新平台、政策标准等新支撑、质检联动等机制,增强保障超大城市主要农产品供应安全能力。

关键词：超大城市主要农产品供应安全

急性冠脉综合征患者血清补体C1q/肿瘤坏死因子相关蛋白5水平与冠状动脉病变程度及心肌纤维化蛋白指标的相关性研究

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中国全科医学 2024年第27期27卷 3365-3371页

作者：李勇李占虎靳博伟李原张宏博苏亚坤闫小菊河北省衡水市人民医院心血管内科 053000

背景急性冠脉综合征(ACS)是威胁人类健康的常见心血管疾病,严重的冠状动脉病变及心肌纤维化影响患者预后。应用无创血清学指标评估冠状动脉病变程度和心肌纤维化有助于ACS患者早期危险分层及治疗管理。目的探讨ACS患者血清补体C1q/肿瘤... 详细信息

背景急性冠脉综合征(ACS)是威胁人类健康的常见心血管疾病,严重的冠状动脉病变及心肌纤维化影响患者预后。应用无创血清学指标评估冠状动脉病变程度和心肌纤维化有助于ACS患者早期危险分层及治疗管理。目的探讨ACS患者血清补体C1q/肿瘤坏死因子相关蛋白5(CTRP5)水平与冠状动脉病变程度、心肌纤维化相关蛋白指标的关系,为临床判断冠状动脉病变程度和心肌纤维化提供指导。方法选取2021年2月—2022年2月在衡水市人民医院心血管内科住院阻塞性狭窄的ACS患者184例,另选取同期行冠状动脉造影未见明显阻塞性狭窄的100例ACS患者作为对照。收集患者一般资料,行多普勒超声心动图检查,测定血清CTRP5、Ⅰ型前胶原(PCⅠ)、Ⅲ型前胶原(PCⅢ)。将阻塞性狭窄的ACS患者按照临床诊断标准分为不稳定型心绞痛(UA)组(n=67)、ST段抬高型心肌梗死(STEMI)组(n=57)和非ST段抬高型心肌梗死(NSTEMI)组(n=61);根据冠状动脉造影病变支数分为单支病变组(n=42)、双支病变组(n=69)和三支病变组(n=73)。根据SYNTAXⅡ评分标准分为低危组(n=77)、中危组(n=73)和高危组(n=34)。根据PCⅠ中位数分为低PCⅠ水平组(n=95)和高PCⅠ水平组(n=89),依据PCⅢ中位数分为低PCⅢ水平组(n=93)、高PCⅢ水平组(n=91)。采用多因素Logistic回归分析探究冠状动脉病变程度的影响因素。绘制受试者工作特征(ROC)曲线分析血清CTRP5对冠状动脉病变程度的诊断价值。结果ACS患者白细胞计数、中性粒细胞计数、中性粒细胞/淋巴细胞比值、空腹血糖(FBG)、超敏肌钙蛋白I、血清CTRP5、超敏C反应蛋白(hs-CRP)、PCⅠ、PCⅢ水平高于对照患者(P<0.05)。NSTEMI组、STEMI组患者血清CTRP5、hs-CRP高于UA组(P<0.05)。三支病变组患者血清CTRP5、PCⅠ、PCⅢ、hs-CRP水平高于单支病变组、双支病变组(P<0.05)。高危组患者血清CTRP5、PCⅠ、PCⅢ、hs-CRP水平高于低危组、中危组(P<0.05)。高PCⅠ水平组血清CTRP、hs-CRP水平高于低PCⅠ水平组(P<0.05)。高PCⅢ水平组血清CTRP、hs-CRP水平高于低PCⅢ水平组(P<0.05)。多因素Logistic回归分析结果显示,FBG、hs-CRP和CTRP5升高是冠状动脉多支病变的危险因素(P<0.05)。血清CTRP5、hs-CRP、FBG预测冠状动脉多支病变的ROC曲线下面积(AUC)分别为0.736(95%CI=0.678~0.794)、0.687(95%CI=0.625~0.748)、0.649(95%CI=0.585~0.713)。结论血清CTRP5水平对ACS患者冠状动脉病变程度具有较好的预测价值,且CTRP5水平升高与心肌纤维化的发生可能存在关联。

关键词：冠心病急性冠脉综合征心内膜心肌纤维化症补体C1q/肿瘤坏死因子相关蛋白5

正念冥想训练结合焦点解决模式对精神分裂症患者自我效能感的影响

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中西医结合护理（中英文） 2024年第1期10卷 100-102页

作者：李娜童小桔厦门市仙岳医院、厦门医学院附属仙岳医院、福建省精神医学中心、福建省精神医学研究中心福建厦门361012

目的探讨正念冥想训练结合焦点解决模式在精神分裂症(SCH)患者中的应用价值。方法选择2020年7月至2021年8月厦门市仙岳医院收治的186例SCH患者为研究对象,按照随机数字表法将其分为观察组(93例)与对照组(93例)。对照组采用常规护理,观... 详细信息

目的探讨正念冥想训练结合焦点解决模式在精神分裂症(SCH)患者中的应用价值。方法选择2020年7月至2021年8月厦门市仙岳医院收治的186例SCH患者为研究对象,按照随机数字表法将其分为观察组(93例)与对照组(93例)。对照组采用常规护理,观察组采用正念冥想训练结合焦点解决模式护理。比较2组的自我效能感、自知力及社会功能。结果护理4周及8周后,2组的一般自我效能感量表、自知力和治疗态度问卷评分,以及住院精神病人社会功能评定量表中的各领域评分及总分均高于护理前(P均<0.05),且观察组的上述评分均高于同期对照组(P均<0.05)。结论将正念冥想训练结合焦点解决模式用于SCH患者,能够有效提高其自我效能感及自知力,促使其社会功能得到恢复。

关键词：精神分裂症正念冥想训练焦点解决模式自我效能感社会功能

氟胁迫条件下茶树叶部实时荧光定量PCR分析中内参基因的筛选与验证

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茶叶科学 2024年第1期44卷 27-36页

作者：李庆会李睿温晓菊倪德江王明乐陈玉琼华中农业大学园艺林学学院果蔬园艺作物种质创新与利用全国重点实验室湖北武汉430070

为了筛选氟胁迫条件下茶树(Camellia sinensis)叶部用于实时荧光定量PCR(qRT-PCR)分析的内参基因,以课题组前期筛选的低氟茶树品种福鼎大白茶和高氟茶树品种金观音为试验材料,利用qRT-PCR技术结合geNorm、NormFinder和BestKeeper软件,... 详细信息

为了筛选氟胁迫条件下茶树(Camellia sinensis)叶部用于实时荧光定量PCR(qRT-PCR)分析的内参基因,以课题组前期筛选的低氟茶树品种福鼎大白茶和高氟茶树品种金观音为试验材料,利用qRT-PCR技术结合geNorm、NormFinder和BestKeeper软件,分析氟胁迫条件下(0.42 mmol·L^(-1)NaF)8个候选内参基因(CsACTIN、CsEF-1α、CseIF-4α、CsGAPDH、CsPP2A、CsTBP、CsTIP41和CsUBC)在茶树不同叶位(新梢和老叶)、不同胁迫时间(0、1、3、7 d)的表达稳定性。结果显示,在氟胁迫条件下,茶树新梢中最优内参基因组合是CsEF-1α、CsTIP41、CsTBP和CsACTIN,老叶中最优内参基因组合是CsPP2A和CsUBC。利用筛选得到的最优内参基因组合分析氟输出蛋白基因(CsFEX)的表达情况,发现CsFEX在两个茶树品种的新梢和老叶中的表达趋势一致,说明筛选的内参组合可用于氟胁迫条件下茶树新梢和老叶中目的基因的检测。

关键词：茶树氟内参基因实时荧光定量PCR 基因表达