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A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation

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Green Energy & Environment 2024年第1期9卷 152-162页

作者： Jingwen Ma Xiang li Guangyu lei Jun Wang Juan Wang Jian liu Ming ke Yang li Chunwen Sun School of Chemical and Environmental Engineering China University of Mining and Technology(Beijing)Beijing100083China State key laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China lab of Advanced Nano-structures&Transfer Processes Department of Chemical EngineeringTianjin UniversityTianjin300354China PetroChina Planning and Engineering Institute Beijing100083China

The exploitation of electrocatalysts with high activity and durability for HER is desirable for future energy systems,but it is still a *** have attracted increasing attentions,but the preparation process often needs toxic regents or dangerous reaction ***,we develop a general green method to fabricate metal-rich NMPs anchored on NPG through pyrolyzing DNA cross-linked *** obtained Ru_(2) P-NPG exhibits an ultrasmall overpotential of 7 mV at 10 mA cm^(2) and ultralow Tafel slope of 33 mV dec^(-1) in 1.0 mol l?1 kOH,even better than that of commercial Pt/*** addition,Ru 2 P-NPG also shows low overpotentials of 29 and 78 mV in 0.5 mol l^(-1) H_(2)SO_(4) and 1.0 mol l^(-1) PBS,*** superior activity can be attributed to the ultrafine dispersion of Ru 2 P nanoparticles for more accessible sites,more defects formed for abundant active sites,the two-dimensional plane structure for accelerated electron transfer and mass transport,as well as the regulation of electron distribution of the ***,the synthetic method can also be applied to prepare other metal-rich noble metal phosphides(Pd_(3)P-NPG and Rh_(2)P-NPG),which also exhibits high activity for *** work provides an effective strategy for designing NMP-based electrocatalysts.

关键词： Noble metal phosphides Electrocatalyst Deoxyribonucleic acid Hydrogen evolution pH universal

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Performance evaluation of the effect of humic acid on Anammox granular sludge:Apparent morphology,nitrogen removal and microbial community

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Journal of Environmental Sciences 2024年第10期144卷 148-158页

作者： Wenhui Huang Peiling Xu Xiang li Yong Huang Hao Sun Wei li Mao Zhang Miao Shi Yan Yuan School of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China Suzhou Hongyu Environmental Technology Company limited by Shares Suzhou 215011China Suzhou Tianjun Environmental Technology limited Company Suzhou 215011China Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment Suzhou University of Science and TechnologySuzhou 215009China

Humic acid(HA)is a typical refractory organicmatter,so it is of great significance to investigate its effect on the performance of Anammox granular *** the dosage ofHA≤50 mg/l,HA promotes the total nitrogen removal rate(NRR)to 1.45 kg/(m^(3)·day).When HA was between 50 and 100 mg/l,the NRR of Anammox was *** this time,the adsorption of HA causes the sludge to gradually turn fromred to brown,but the activities of heme and enzymes showed that its capacitywas not *** HA levels reached 250 mg/l,the NRR dropped to 0.11 kg/(m3·day).Moderate HA levels promoted the release of extracellular polymeric substance(EPS),but excessive HA levels lead to a decrease in EPS *** inhibited Anammox activity,which indirectly hindered the transmission of substrate and accumulated substrate *** HA promoted the increase of heterotrophicmicrobial abundance in Anammox system,the microbial diversity decreased *** the increase of HA concentration,the abundance of Candidatus_Brocadia,the main functional microorganism of Anammox system,decreased gradually,while the abundance of Candidatus_kuenenia increased gradually.

关键词： Anammox landfill leachate Humic acid Heme Microbial community Enzyme activity

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Electrochemical Activation-Induced Structural Transformation in Ni（OH）2/Ti3C2Tx/NF Systems with Enhanced Electrochemical Performance for Hybrid Supercapacitors

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Energy & Environmental Materials 2024年第4期7卷 277-284页

作者： Chuming Xu lu Dai Yiming Zhao Shuang li Yapan Wu Xueqian Wu Gaixia Zhang Shuhui Sun Dongsheng li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Department of Electrical Engineering école de Technologie Supérieure (éTS) Institut National de la Recherche Scientifique (INRS) Centre énergie Matériaux Télécommunications

Exploring a novel strategy for large-scale production of battery-type Ni（OH）2-based composites,with excellent capacitive performance,is still greatly ***,we developed a facile and cost-effective strategy to in situ grow a layer of Ni（OH）2/Ti3C2Txcomposite on the nickel foam（NF） collector,where Ti3C2Txis not only a conductive component,but also a catalyst that accelerates the oxidation of NF to Ni（OH）2.

关键词： electrochemical activation hybrid supercapacitors Ni(OH)2 Ti3C2Tx

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基于频域分解与重采样的结构欠采样模态辨识

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振动．测试与诊断 2024年第1期44卷 107-112,200页

作者：利雅洁吕中荣汪利中山大学航空航天学院深圳518107

为了研究欠采样情况下的结构模态辨识问题,首先,在频域分解法识别结构模态参数的基础上,引入重采样策略,对不同采样频率下的参数进行辨识;其次,使用模态确认准则进行模态匹配,结合扇形折叠曲线对欠采样下发生混叠的模态参数进行还原,还... 详细信息

为了研究欠采样情况下的结构模态辨识问题,首先,在频域分解法识别结构模态参数的基础上,引入重采样策略,对不同采样频率下的参数进行辨识;其次,使用模态确认准则进行模态匹配,结合扇形折叠曲线对欠采样下发生混叠的模态参数进行还原,还原出结构的真实频率以及阻尼比;最后,通过一个8自由度仿真模型和一个4层框架实验案例,证明所提方法能够准确识别欠采样结构的频率、阻尼比和振型,重采样策略能够切实解决欠采样模态辨识问题,从而验证了该方法的正确性和可行性。

关键词：模态辨识欠采样模态混叠频域分解法重采样

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Development of a prognostic scoring system for hepatic vena cava Budd-Chiari syndrome with hepatocellular carcinoma

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Hepatobiliary & Pancreatic Diseases International 2024年第4期23卷 370-375页

作者： Sheng-Yan liu lu-Hao li Zhao-Chen liu Su-Xin li Xiao-Wei Dang Department of Hepatopancreatobiliary Surgery the First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Budd-Chiari Syndrome Diagnosis and Treatment Center of Henan Province Zhengzhou 450052China

Background:Hepatocellular carcinoma(HCC)is a serious complication of hepatic vena cava Budd-Chiari syndrome(HVC-BCS)that significantly reduces the survival time of *** study aimed to analyze the prognostic factors influencing the survival of HVC-BCS patients with HCC and to develop a prognostic scoring ***:The clinical and follow-up data of 64 HVC-BCS patients with HCC who received invasive treatment at the First Affiliated Hospital of Zhengzhou University between January 2015 and December 2019 were retrospectively ***-Meier curves and log-rank tests were used to analyze the survival curve of patients and the difference in prognoses between the *** and multivariate Cox regression analyses were performed to analyze the influence of biochemical,tumor,and etiological characteristics on the total survival time of patients,and a new prognostic scoring system was developed according to the regression coefficients of the independent predictors in the statistical *** prediction efficiency was evaluated using the time-dependent receiver operating characteristics curve and concordance ***:Multivariate analysis showed that serum albumin levell[hazard ratio(HR)=4.207,95%confidence interval(CI):1.816-8.932,P=0.001],maximum tumor diameter>7 cm(HR=8.623,95%CI:3.771-19.715,Pl.A prognostic scoring system was developed according to the above-mentioned independent predictors,and patients were classified into grades A,B,C and *** differences in survival were found among the four ***:This study successfully developed a prognostic scoring system for HVC-BCS patients with HCC,which is helpful for clinical evaluation of patient prognosis.

关键词： Budd-Chiari syndrome Hepatocellular carcinoma Prognostic factors Inferior vena cava stenosis Prognostic scoring system

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Rapid analysis of metal ions and organic compounds in strong acidic solutions by nano-ESI mass spectrometry

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Chinese Chemical letters 2024年第2期35卷 516-520页

作者： Jiaquan Xu Ting li Zhendong Yu lili Song Xiu-Xiu Xu Hui li Jiangxi key laboratory for Mass Spectrometry and Instrumentation East China University of TechnologyNanchang 330013China Department of Rehabilitation Medicine The First Affiliated Hospital of Nanchang UniversityNanchang 330006China

Rapid analysis of metal ions and organic compounds in strong acidic solutions is of sustainable interest in multiple ***,complicated and time-consuming pretreatments are always required for MS analysis of the compounds in strong acidic ***,it will result in a weak signal and cause serious damage to the mass ***,a simple method inherited from nano-ESI MS was developed for rapid analysis of strong acidic ***(nl)strong acidic solution was first loaded in the nano-ESI emitter,followed by evaporation to remove the H+and leave the analytes on the wall of the nano-ESI *** evaporation process can be completed within 1 min because of the extremely tiny volume(≤1 nl)of the loaded ***,the dried analytes on the wall of the nano-ESI emitter were redissolved by loading a new solvent,followed by nano-ESI MS *** using this method,metal ions and organic compounds in the strong acidic solution can be detected with low sample consumption(1 nl),high speed(le),high sensitivity(limit of detection=0.2µg/l),and high accuracy(>90%).Proof-of-concept applications of the present method have been successfully achieved for the analysis of gastric juice(pH of the sample=1),monitoring reaction catalyzed by strong acid(pH of the system=0),and micro-area analysis of ores(pH of the extraction solvent=0),showing great application potential in multiple fields.

关键词： Strong acidic solutions Nano-ESI MS Rapid analysis Reaction monitoring Micro-area analysis Gastric juice analysis

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β-Carboline alkaloids from the roots of Peganum harmala l.

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Chinese Journal of Natural Medicines 2024年第2期22卷 171-177页

作者： li Shengge ZHANG Qin WANG Yuetong liN Bin li Dahong HUA Huiming HU Xu Henan key laboratory of Zhang Zhongjing Formulate and Herbs for Immunoregulation Zhang Zhongjing Traditional School of Chinese MedicineNanyang Institute of TechnologyNanyang 473004China key laboratory of Structure-Based Drug Design&Discovery Ministry of EducationShenyang Pharmaceutical UniversityShenyang 110016China Wuya College of Innovation Shenyang Pharmaceutical UniversityShenyang 110016China School of Pharmaceutical Engineering Shenyang Pharmaceutical UniversityShenyang 110016China

This study reports the isolation of four newβ-carboline alkaloids(1−4)and six previously identified alkaloids(5−10)from the roots of Peganum harmala *** these compounds,1 and 2 were characterized as rareβ-carboline-quinazoline dimers exhibiting axial *** 3 possessed a unique 6/5/6/7 tetracyclic ring system with an azepine ring,and compound 4 was a novel annomontineβ-*** structures of these compounds were elucidated by spectroscopic data and quantum mechanical *** biosynthetic pathways of 1−3 were ***,the cytotoxicity of some isolates against four cancer cell lines(Hl-60,A549,MDA-MB-231,and DU145)was ***,compound 4 exhibited significant cytotoxicity against Hl-60,A549,and DU145 cells with IC_(50) values of 12.39,12.80,and 30.65μmol·l^(−1),***,compound 2 demonstrated selective cytotoxicity against Hl-60 cells with an IC_(50) value of 17.32μmol·l^(−1).

关键词： β-Carboline alkaloids Peganum harmala Structure elucidation Cytotoxic activity

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Effects of antioxidant‑rich lactiplantibacillus plantarum inoculated alfalfa silage on rumen fermentation, antioxidant and immunity status, and mammary gland gene expression in dairy goats

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Journal of Animal Science and Biotechnology 2024年第3期15卷 1227-1240页

作者： Yixin Zhang Samaila Usman Qiang li Fuhou li Xia Zhang luiz Gustavo Nussio Xusheng Guo State key laboratory of Grassland Agro‑ecosystems School of Life SciencesLanzhou UniversityLanzhou 730000PR China Probiotics and life Health Institute Lanzhou UniversityLanzhou 730000PR China Probiotics and Biological Feed Research Centre Lanzhou UniversityLanzhou 730000PR China Department of Animal Science Luiz de Queiroz College of AgricultureUniversity of Sao PauloPiracicaba 13418‑900Brazil

Background Milk synthesis in lactating animals demands high energy metabolism,which results in an increased production of reactive oxygen metabolites(ROM)causing an imbalance between oxidants and antioxidants thereby inducing oxidative stress(OS)on the *** mitigate OS and postpartum disorders in dairy goats and gain insight into the impact of dietary choices on redox status during lactation,a feeding trial was conducted using alfalfa silage inoculated with a high-antioxidant strain of lactiplantibacillus *** Twenty-four Guanzhong dairy goats(38.1±1.20 kg)were randomly assigned to two dietary treatments:one containing silage inoculated with *** MTD/1(RSMTD-1),and the other containing silage inoculated with high antioxidant activity *** 24-7(ES24-7).Results ES24-7-inoculated silage exhibited better fermentation quality and antioxidant activity compared to *** ES24-7 diet elevated the total antioxidant capacity(T-AOC),superoxide dismutase(SOD),glutathione peroxi-dase(GSH-Px),and catalase(CAT)activities in milk,serum,and feces of lactating goats(with the exception of T-AOC in milk).Additionally,the diet containing ES24-7 inoculated silage enhanced casein yield,milk free fatty acid(FFA)content,and vitamin A level in the goats’***,an increase of immunoglobulin(Ig)A,IgG,IgM,inter-leukin(Il)-4,and Il-10 concentrations were observed,coupled with a reduction in Il-1β,Il-2,Il-6,interferon(IFN)-γ,and tumor necrosis factor(TNF)-αconcentrations in the serum of lactating goats fed *** concentrations of total volatile fatty acid(VFA),acetate,and propionate were observed in the rumen fluid of dairy goats fed ES24-7 inoculated ***,the diet containing ES24-7 inoculated silage significantly upregulated the expression of nuclear factor erythroid 2 like 2(NFE2l2),beta-carotene oxygenase 1(BCO1),SOD1,SOD2,SOD3,GPX2,CAT,glu-tathione-disulfide reductase(GSR),and heme oxygenase 1(HMOX1)genes in the mammary gland,

关键词： Alfalfa silage Antioxidant activity Gene expression Goats Immunity lactation

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CPl-active hybrid copper(Ⅰ)halides enabled by cation inclusion with chiral crown-ether

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Science China Chemistry 2024年第10期67卷 3283-3290页

作者： Peng Fan li-Xuan Cai Xiao-Fang Duan Fan Yin Chen-Chen li Zhong-Hua Deng Xiao-Zhen li Qing-Fu Sun College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350117China Strait Institute of Flexible Electronics(Future Technologies) Fujian Key Laboratory of Flexible ElectronicsFujian Normal University and Strait Laboratory of Flexible ElectronicsFuzhou 350117China State key laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian College University of Chinese Academy of SciencesFuzhou 350002China

Chiral hybrid metal halides with high photoluminescence quantum yield(PlQY)and superior dissymmetry factor(g_(lum))are promising candidates for circularly polarized luminescence(CPl)emitting ***,it is a great challenge to achieve both high g_(lum)and large ***,we report a new supramolecular strategy to fabricate chiral hybrid Cu(Ⅰ)-halides with nearunity quantum yields and intense CPl *** dissymmetry factor can be dramatically modulated by tuning the hostguest *** to the chirality and variable conformations of the host-guest complexes,a series of chiral[G@l^(R/S)]_(2)Cu_(4)I_(6)have been *** incorporation of different cations within the chiral l^(R/S)hosts leads to variations of packing modes along the c-axis and different extent of distortions in the[Cu_(4)I_(6)]_(2)-*** them,[H_(3)O@l^(R/S)]+cations are stacked based on Van der Waals interactions and hierarchically self-assemble into a right/left-handed helix in[H_(3)O@l^(R/S)]_(2)Cu_(4)I_(6),which results in a high g_(lum)of-7×10^(-3)and a large PlQY of 96.92%.Notably,[G@l^(R/S)]_(2)Cu_(4)I_(6)shows promising applications in single-component white light emitting diodes(WlEDs),exhibiting a maximum dissymmetry factor of-1.2×10^(-3).The effective host-guest complexation and oriented hierarchical self-assembly provide an effective strategy for the development of high-performance CPl materials.

关键词： host-guest interaction circularly polarized luminescence copper iodide cluster hierarchical self-assembly chirality

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An unprotected vulnerable relict subtropical conifer-keteleeria evelyniana: Its forests, populations, growth and endangerment by invasive alien plant species in China

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Plant Diversity 2024年第5期46卷 648-660页

作者： Cindy Q.Tang Min-Rui Du Huan-Chong Wang You-Cai Shi Jia-le Zeng Shu-li Xiao Peng-Bin Han Jian-Ran Wen Shi-Qian Yao Ming-Chun Peng Chong-Yun Wang Yong-Ping li Jordi lópez-Pujol Institute of Ecology and Geobotany College of Ecology and Environmental ScienceYunnan UniversityBuilding#3Guozhong DalouDongwaihuan South RoadUniversity TownChenggong New DistrictKunming 650504YunnanChina College of life Sciences Yunnan UniversityShengming Kexueyuan Building#2Chenggong CampusDongwaihuan South RoadUniversity TownChenggong New DistrictKunming 650504YunnanChina College of Natural Resources Yunnan UniversityChenggong CampusDongwaihuan South RoadUniversity TownChenggong New DistrictKunming 650504YunnanChina Botanic Institute of Barcelona(IBB CSIC-CMCNC)Passeig del Migdia s/nBarcelona 08038CataloniaSpain Escuela de Ciencias Ambientales Universidad Espíritu Santo(UEES)Samborondon 091650Ecuador

Relict subtropical coniferous forests in China face severe fragmentation,resulting in declining populations,and some are under significant threat from invasive alien *** the crucial importance of understanding forest dynamics,knowledge gaps persist,particularly regarding the impact of invasive plants on vulnerable natives like keteleeria *** this study,we investigated the impact of invasive plants on the regeneration of forests dominated by ***,a subtropical relict species in southwestern *** this purpose,we characterized forest dynamics of 160 forest plots featuring *** as the primary dominant species and determined whether the presence of invasive plants was correlated with regeneration of *** identified four distinct forest types in which *** was *** found that radial growth of *** trees is faster in younger ageclasses today than it was for older trees at the same *** population structure of *** in each forest type exhibited a multimodal age-class ***,three forest types lacked established saplings younger than 10 years old,a situation attributed to the dense coverage of the invasive alien Ageratina *** invasive species resulted in a reduction of understory species ***,our analysis uncovered a significant negative correlation in phylogenetic relatedness(net relatedness index)between native and invasive alien plant species in eastern *** suggests closely related invasive species face heightened competition,hindering successful *** together,our findings indicate that successful establishment and habitat restoration of *** seedling/saplings require effective measures to control invasive plants.

关键词： keteleeria evelyniana Age structure Regeneration Species diversity Invasive alien species Phylogenetic relatedness

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