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A h.gh.y sensitive LITES sensor based on a multi-pass cell with.dense spot pattern and a novel quartz tuning fork with.low frequency

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Opto-Electronic Advances 2024年第3期7卷 26-34页

作者： Yah.i liu Sh.nda Qiao Ch.o fang Ying h. h.iyue Sun Jian liu Yufei Ma National Key Laboratory of Science and Tech.ology on Tunable Laser Harbin Institute of TechnologyHarbin 150000China Zh.ngzh.u Research.Institute Harbin Institute of TechnologyZhengzhou 450000China Advanced Microscopy and Instrumentation Research.Center School of Instrumentation Science and EngineeringHarbin Institute of TechnologyHarbin 150080China.

A h.gh.y sensitive ligh.-induced th.rmoelectric spectroscopy(LITES)sensor based on a multi-pass cell(MPC)with.dense spot pattern and a novel quartz tuning fork(QTF)with.low resonance frequency is reported in th.s *** erbi-um-doped fiber amplifier(EDFA)was employed to amplify th. output optical power so th.t th. signal level was furth.r *** optical path.length.OPL)and th. ratio of optical path.length.to volume(RLV)of th. MPC is 37.7 m and 13.8 cm^(-2),respectively.A commercial QTF and a self-designed trapezoidal-tip QTF with.low frequency of 9461.83 h. were used as th. detectors of th. sensor,*** target gas selected to test th. performance of th. system was acetylene(C2h.).Wh.n th. optical power was constant at 1000 mW,th. minimum detection limit(MDL)of th. C2h.-LITES sensor can be ach.eved 48.3 ppb wh.n using th. commercial QTF and 24.6 ppb wh.n using th. trapezoid-al-tip *** improvement of th. detection performance by a factor of 1.96 was ach.eved after replacing th. commer-cial QTF with.th. trapezoidal-tip QTF.

关键词： ligh.-induced th.rmoelectric spectroscopy quartz tuning fork multi-pass cell gas sensing

Regulating^(*)COOh.intermediate via amino alkylation engineering for exceptionally effective ph.tocatalytic CO_(2) reduction

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Journal of Energy Ch.mistry 2024年第5期92卷 282-291页

作者： Ch.ngch.ng Ch.n Qiaoyu Zh.ng fangting liu Zh.ngguo Zh.ng Qiong liu Xiaoming fang Key Laboratory of Enh.nced h.at Transfer and Energy Conservation The Ministry of EducationSchool of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510640GuangdongChina Guangdong Provincial Key Laboratory of Ch.mical Measurement and Emergency Test Tech.ology(Ch.na) Institute of AnalysisGuangdong Academy of Sciences(China National Analytical CenterGuangzhou)Guangzhou 510070GuangdongChina Guangdong Engineering Tech.ology Research.Center of Efficient h.at Storage and Application South China University of TechnologyGuangzhou 510640GuangdongChina Guangdong Provincial Key Laboratory of Fuel Cell Tech.ology South China University of TechnologyGuangzhou 510640GuangdongChina

Ph.tocatalytic reduction of CO_(2) into fuel represents a promising approach.for ach.eving carbon neutrality,wh.le realizing h.gh.selectivity in th.s process is ch.llenging due to uncontrollable reaction intermediate and retarded desorption of target *** th. interface microenvironment of catalysts h.s been proposed as a strategy to exert a significant influence on reaction outcomes,yet it remains a significant *** th.s study,amino alkylation was successfully integrated into th. melem unit of polymeric carbon nitrides(PCN),wh.ch.could efficiently drive th. ph.tocatalytic CO_(2) *** ch.racterization and th.oretical calculations revealed th.t th. introduction of amino alkylation lowers th. energy barrier for CO_(2) reduction into^(*)COOh.intermediate,transforming th. adsorption of^(*)COOh.intermediate from th. endoth.rmic to an exoth.rmic ***,th. as-prepared materials demonstrated outstanding performance in ph.tocatalytic CO_(2) reduction,yielding CO_(2)at a rate of 152.8μmol h.(-1) with.a h.gh.selectivity of 95.4%and a quantum efficiency of 6.6%.

关键词： Polymeric carbonnitride Regulate intermediate Ph.tocatalytic CO_(2)reduction Amino alkylation ^(*)COOh.adsorption

Strong h.tero-interface interaction in 2D/2D WSe2/ZnIn2S4 h.terostructures for h.gh.y-efficient ph.tocatalytic h.drogen generation

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Journal of Energy Ch.mistry 2024年第10期97卷 379-387页

作者： Xu Guo Xing liu Jing Sh.n Zh.o Xu Zh.ming fang Lu Wang Sh.ngzh.ng liu Sch.ol of Energy Power and Mechanical Engineering North China Electric Power University Sh.anxi Key Laboratory for Advanced Energy Devices School of Materials Science and Engineering Shaanxi Normal University Qingh.i Advanced Energy Storage Laboratory SPIC Qinghai Photovoltaic Industry Innovation Center Co. Ltd.State Power Investment Corporation Key Laboratory of Ph.toelectric Conversion and Utilization of Solar Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

Green h.drogen is urgently required for sustainable development of h.man beings and rational construction of h.terostructures h.lds great promising for ph.tocatalytic h.drogen ***,2D/2D WSe2/ZnIn2S4h.terostructures with.strong h.tero-interface interaction and abundant contact were constructed via an impregnation-annealing *** ch.rge transfer from ZnIn2S4to WSe2was evidenced by transient absorption spectroscopy in crafted h.terostructures owing to th. tigh. and2D face-to-face *** a result,th. prepared WSe2/ZnIn2S4h.terostructures exh.bited boosted ph.tocatalytic performance and a h.gh.st h.drogen evolution rate of 3.377 mmol/（g h. was ach.eved with.an apparent quantum yield of 45.7% at 420 *** work not only provides new strategies to ach.eve efficient 2D/2D h.terostructures but also paves th. way for th. development of green h.drogen in th. future.

关键词： Indium compounds

Kelp Fucoidans Facilitate Vascular Recanalization via Inh.biting Excessive Activation of Platelet in Deep Venous Th.ombosis Model of Mouse

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Journal of Ocean University of Ch.na 2024年第2期23卷 550-556页

作者： SUN Taoh.a liu Jie YAN Taish.n Ch.N Anjin Zh.NG fang Department of Clinical Drug Trials Qingdao Municipal HospitalQingdao 266100China Department of Ph.rmacy Qingdao Municipal HospitalQingdao 266100China

Th.s study was carried out explore th. mech.nism underlying th. inh.bition of platelet activation by kelp fucoidans in deep venous th.ombosis(DVT)*** th. control and sh.m mice,th. walls of deep vein were regular and smooth.with.intact intima,myometrium and *** blood vessel was wrapped with.th. tissue and th.re was no th.ombosis in th. *** th. DVT model,th. wall was uneven with.th.cken intima,myometrium and *** treated with.fucoidans LF1 and LF2,th. th.ombus was dissolved and th. blood vessel was *** with.th. control group,th. ROS content,ET-1 and VWF content and th. expression of PKC-βand NF-κB in th. model were significantly h.gh.r(Ph.se levels were significantly reduced following treatments with.LF2 and *** with.h.(2)O_(2)treated-h.VECs,combined LF1 and LF2 treatment resulted in significant decrease in th. expression of PKC-β,NF-κB,VWF and TM protein(Ph.t LF1 and LF2 reduces DVT-induced ET-1,VWF and TM expressions and production of ROS,th.s inh.biting th. activation of PKC-β/NF-κB signal path.ay and th. activation of coagulation system and ultimately reducing th. formation of venous th.ombus.

关键词： kelp fucoidans LF1 LF2 deep vein th.ombosis platelet

Compreh.nsive analyses of th. proteome and ubiquitome revealed mech.nism of h.gh.temperature accelerating petal abscission in tree peony

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h.rticultural Plant Journal 2024年第1期10卷 205-222页

作者： Ch.nying liu Ziqi liu Yanch.o Yuan Yuxi Zh.ng Yifu fang Junqiang Ch.n Sh.peng Gai Key Laboratory of Plant Biotech.ology in Sh.ndong Province College of Life SciencesQingdao Agricultural UniversityQingdaoShandong 266109China Sh.ndong Academy of Forestry JinanShandong 250014China

Tree peony(Paeonia suffruticosa Andrews)is a well-known ornamental plant with.h.gh.economic value,but th. sh.rt fluorescence is a key obstacle to its ornamental value and industry *** temperature accelerates flower senescence and abscission,but th. associated mech.nisms are poorly *** th.s study,th. tandem mass tag(TMT)proteome and label-free quantitative ubiquitome from tree peony cut flowers treated with.20℃for 0 h.RT0),20℃or 28℃for 60 h.RT60 or h.60)were examined based on morph.logical observation,***,6970 proteins and 1545 lysine ubiquitinated(Kub)sites in 844 proteins were *** residues(such.as glutamate and aspartate)neigh.oring th. Kub sites were in preference,and 36.01%of th. Kub sites were located on th. protein *** differentially expressed proteins(DEPs)and Kub-DEPs in h.60 vs RT60 were mainly enrich.d in ribosomal protein,protein biosynth.sis,secondary metabolites biosynth.sis,flavonoid metabolism,carboh.drate catabolism,and auxin biosynth.sis and signaling revealed by GO and KEGG analysis,accompanying th. increase of endogenous abscisic acid(ABA)accumulation and decrease of endogenous indoleacetic acid(IAA)***,th. expression patterns of six enzymes(SAMS,ACO,YUC,Ch.,ANS and PFK)putatively with.Kub modifications were analyzed by proteome and real-time quantitative *** cell-free degradation assays sh.wed PsSAMS and PsACO proteins could be degraded via th. 26 S proteasome system in tree peony ***,a working model was proposed for th. acceleration of flower senescence and abscission by h.gh.*** summary,all results contributed to understanding th. mech.nism of flower senescence induced by h.gh.temperature and prolonging fluorescence in tree peony.

关键词： Tree peony Proteome Ubiquitome h.gh.temperature Flower senescence

Effect of h.midity on Formaldeh.de Oxidation over Ce_(0.8)Zr_(0.2)O_(y)Catalyst

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Journal of Wuh.n University of Tech.ology(Materials Science) 2024年第5期39卷 1108-1115页

作者： TANG Ruijiu YANG Zonglin liu Xiang JIA Lijuan WANG fang DUAN Kaijiao liu Tianch.ng College of Ch.mistry and Environment Yunnan Minzu UniversityTechnology Innovation Team of Green Purification Technology for Industrial Waste GasEducation Department of YunnanKey Laboratory of Environmental Functional Materials of Yunnan Province Education DepartmentKunming 650504China

In th. preparation of a series of Ce_(0.8)Zr_(0.2)O_(y)catalysts catalyzing th. removal of formaldeh.de,BET,h.-TPR,IR,SEM,XPS,and XRD were used to ch.racterize th. catalyst,and th. influence of h.midity on th. catalyst activity was studied by adjusting th. h.midity during th. *** experimental results sh.wed th.t th. formaldeh.de removal rate increased with.th. increase of *** th. h.midity was h.gh.r th.n 50%,th. formaldeh.de removal rate decreased by 3%over th.t wh.n th. h.midity was 50%.Th. ch.racterization results sh.wed th.t h.midity facilitated th. activation of oxygen and th. formation of h.droxyl groups,wh.ch.both.promoted th. formation and oxidative decomposition of intermediates and prevented th. deposition of intermediates th.t clogged th. pores,allowing more formaldeh.de to be adsorbed and oxidized,wh.ch.increased th. activity of th. *** provides new mech.nistic evidence for th. oxidation of formaldeh.de and h.lps in th. development of relatively low-cost materials for formaldeh.de purification.

关键词： formaldeh.de h.midity Ce_(0.8)Zr_(0.2)O_(y) catalytic oxidation

SGT-Net: A Transformer-Based Stratified Graph.Convolutional Network for 3D Point Cloud Semantic Segmentation

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Computers, Materials & Continua 2024年第6期79卷 4471-4489页

作者： Suyi liu Jianning Ch. Ch.ngdong Wu fang Xu Xiaosh.ng Yu Faculty of Robot Science and Engineering Northeastern UniversityShenyang110167China State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang110016China Institutes for Robotics and Intelligent Manufacturing Chinese Academy of SciencesShenyang110169China SIASUN Robot&Automation Co. Ltd.Shenyang110169China

In recent years,semantic segmentation on 3D point cloud data h.s attracted much.*** 2D images wh.re pixels distribute regularly in th. image domain,3D point clouds in non-Euclidean space are irregular and inh.rently ***,it is very difficult to extract long-range contexts and effectively aggregate local features for semantic segmentation in 3D point cloud *** current meth.ds eith.r focus on local feature aggregation or long-range context dependency,but fail to directly establish.a global-local feature extractor to complete th. point cloud semantic segmentation *** th.s paper,we propose a Transformer-based stratified graph.convolutional network(SGT-Net),wh.ch.enlarges th. effective receptive field and builds direct long-range ***,we first propose a novel dense-sparse sampling strategy th.t provides dense local vertices and sparse long-distance vertices for subsequent graph.convolutional network(GCN).Secondly,we propose a multi-key self-attention mech.nism based on th. Transformer to furth.r weigh. augmentation for crucial neigh.oring relationsh.ps and enlarge th. effective receptive *** addition,to furth.r improve th. efficiency of th. network,we propose a similarity measurement module to determine wh.th.r th. neigh.orh.od near th. center point is *** demonstrate th. validity and superiority of our meth.d on th. S3DIS and Sh.peNet *** ablation experiments and segmentation visualization,we verify th.t th. SGT model can improve th. performance of th. point cloud semantic segmentation.

关键词： 3D point cloud semantic segmentation long-range contexts global-local feature graph.convolutional network dense-sparse sampling strategy

Mach.ne learning and bioinformatics to identify biomarkers in response to Burkh.lderia pseudomallei infection in mice

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BIOCELL 2024年第4期48卷 613-621页

作者： YAO fang FEI XIA FEIFEI TIAN L EI QU fang YANG JUAN fang Zh.Nh.NG h. h.ICh.O liu Department of Respiratory and Critical Care Medicine General Hospital of Center Theater of PLAWuhan430070China Sch.ol of Medicine Wuhan University of Science and TechnologyWuhan430065China Sch.ol of Life Science and Engineering Southwest Jiaotong UniversityChengdu611756China

Objective:In th. realm of Class I path.gens,Burkh.lderia pseudomallei(BP)stands out for its propensity to induce severe *** th. intricate interactions between BP and h.st cells is imperative for compreh.nding th. dynamics of BP infection and discerning biomarkers indicative of th. h.st cell response ***:mRNA extraction from BP-infected mouse macroph.ges constituted th. initial step of our *** gene expression arrays,th. extracted RNA underwent conversion into digital *** percentile sh.ft meth.d facilitated data processing,with.th. identiﬁcation of genes manifesting signiﬁcant differences accomplish.d th.ough.th. application of th. ***,a compreh.nsive analysis involving Gene Ontology enrich.ent and Kyoto Encyclopedia of Genes and Genomes path.ay was conducted on th. differentially expressed genes(DEGs).Leveraging th. ESTIMATE algorith.,gene signatures were utilized to compute risk scores for gene expression *** vector mach.ne analysis and gene enrich.ent scores were instrumental in establish.ng correlations between biomarkers and macroph.ges,followed by an evaluation of th. predictive power of th. identiﬁed ***:Th. functional and path.ay associations of th. DEGs predominantly centered around G protein-coupled receptors.A noteworth. positive correlation emerged between th. blue module,consisting of 416 genes,and th. ***4,identiﬁed th.ough.support vector mach.ne analysis among intersecting genes,indicated a robust interaction with.macroph.ges,suggesting its potential as a robust ***4 exh.bited commendable predictive efﬁcacy,with.BP infection inducing its expression in both.macroph.ges and mouse lung *** blotting in macroph.ges conﬁrmed a signiﬁcant upregulation of FZD4 expression from 0.5 to 24 h.*** mouse lung tissue,FZD4 manifested h.gh.r expression in th. cytoplasm of pulmonary epith.lial cells in BP-infected lungs th.n in th.

关键词： Burkh.lderia pseudomallei Microarray assay Mach.ne learning Bioinformatics FZD4

Sequence-Controlled Synth.sis of Alternating Poly(ester amide)s using Water as Control Agent in One-Pot

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Ch.nese Journal of Polymer Science 2024年第8期42卷 1015-1020页

作者： Tao liu fang-fang Niu Kan Ch.ng Yu-Min Xia Bo-Mou Ma Xue-Li Wang Jian-Yong Yu Yong h. State Key Laboratory for Modification of Ch.mical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Innovation Center for Textile Science and Tech.ology Donghua UniversityShanghai 201620China

Poly(ester amide)s(PEAs)attract much.attention as a new kind of biodegradable ***,th. synth.sis of PEAs with.sequence-regulated ch.in structures is still complicated due to th. multistep polymerization,h.gh.monomer purity,as well as th. usage of organic solvents,wh.ch.greatly inh.bits its development and ***,a one-pot strategy with.ut solvent was developed to synth.size th. alternating PEA fromα,ω-amino alcoh.l and dicarboxylic acid by sequential polycondensation,wh.re water was used as th. controlling agent for amidation and ***,th. amidation and esterification were controlled to proceed in turn by adding or removing water,realizing th. one-pot preparation of alternating *** resultant PEA is ch.racterized by^1h.and^(13)C-NMR,and its ch.in structure is confirmed to be h.gh.y quasi-alternating similar to alternating PEAs prepared by classical meth.ds Th. evaluations from DSC and DMA demonstrate th.t th. properties of quasi-alternating PEA(T_(m)=102℃,Δh.(m)=30J·g^(-1))are far superior to th.se of random PEA(T_(m)=72℃,Δh.(m)<1 J·g^(-1)).

关键词： Biodegradable macromolecules Polymer arch.tectures Sequence-controlled synth.sis One-pot polymerization