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Cryo-EM structure of R-loop monoclonal antibody S9.6 in recognizing RNA:DNA hybrids

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Journal of Genetics and Genomics 2022年第7期49卷 677-680页

作者： Qin li Chao lin Zhipu Luo haitao li Xueming li Qianwen Sun Center for Plant Biology School of Life SciencesTsinghua UniversityBeijing 100084China Beijing Advanced Innovation Center for Structural Biology Tsinghua UniversityBeijing 100084China Institute of Molecular Enzymology School of Biology and Basic Medical SciencesSoochow UniversitySuzhouJiangsu 215123China University Beijing 100084China Tsinghua-Peking Center for life Sciences Beijing 100084China

Three-stranded chromatin structure R-loops are thought to be formed co-transcriptionally with newly synthesized RNA behind RNA polymerases,and play essential biological roles(Costantino and Koshland,2015;Santos-Pereir... 详细信息

关键词： monoclonal structure

Wandesia(***.)boyani li&Guo,***.,a new species representing a newly recorded subfamily Wandesiinae Schwoerbel,1961 from China

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Zoological Systematics 2021年第2期46卷 176-181页

作者： haitao li Xinyao Gu Daochao Jin Jianjun Guo Institute of Entomology Guizhou UniversityGuizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous RegionScientific Observing and Experimental Station of Crop Pests in GuiyangMinistry of Agriculture and Rural Affairs of the People's Republic of ChinaGuiyang 550025P.R.China

A new species,Wandesia(***.)boyani li&Guo,***.,is described and illustrated in detail,which is collected from Qinghai-Tibet plateau,***,and represents a newly recorded subfamily Wandesiinae(Acari:Hydrachnidiae:Hydryphantidae)to Chinese *** new species is distinguished from its congeners by having stalked acetabula ranged triangularly,developed pregenital sclerite lily-like,E4 at the middle of Ac-1 and Ac-2.

关键词： Taxonomy water mite new species new record Sichuan

CdTe QDs@SiO_(2) composite material for efficient photocatalytic degradation of tetracycline composites

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Green Chemical Engineering 2024年第4期5卷 533-542页

作者： Taihang Zhou Fen Qiao Sen Qian Shoaib Muhammad haitao li Yanzhen liu School of Energy&Power Engineering Jiangsu UniversityZhenjiang212013China Institute for Energy Research Jiangsu UniversityZhenjiang212013China

In the contemporary context,tetracycline is widely utilized as a prevalent antibiotic in various facets of ***,the excessive use of antibiotics has caused visible environmental ***,the scientific community has increasingly focused on developing catalysts that exhibit exceptional efficacy in the proficient degradation of *** this study,a novel nanomaterial was developed to encapsulate Cd Te quantum dots(QDs)with a SiO_(2)*** distinct synthesis approach generated a composite material that showed heterogeneity and considerably increased the contact area with ***,the transfer of photoelectron to the SiO_(2)spheres was significantly improved,leading to a more efficient separation during the catalytic *** study investigated how different factors,such as the loading of the catalyst,the initial concentration of tetracycline,p H levels,and the wight ratio of Cd Te QDs(SiO_(2)+Cd Te QDs)affected the effectiveness of photocatalytic tetracycline *** findings indicated that the optimal degradation efficiency was observed at a catalyst concentration of 0.25 g/L and a solution p H of 9,leading to an impressive degradation rate of 96%within a mere 2 h timeframe.

关键词： Photocatalysis Silica-based catalyst Photocatalytic degradation Photocatalytic mechanism

Lateral Performance for Wood-Frame Shear Walls–A Critical Review

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Journal of Renewable Materials 2023年第5期11卷 2143-2169页

作者： Wei Xu Ottavia Corbi Seithati Mapesela Yue Chen Milan Gaff haitao li School of Civil Engineering Nanjing Forestry UniversityNanjing210037China Joint International Research Laboratory of Bio-Composite BuildingMaterials and Structures Nanjing Forestry UniversityNanjing210037China University of Naples Federico II Via Claudio 21Naples80133Italy Department of Furniture Design and Habitat BrnoMendel University in BrnoBrno61300Czech Republic Department of Wood Processing Faculty of Forestry and Wood SciencesCzech University of Life Sciences PragueSuchdol16521Czech Republic

Wood is a green material in line with the sustainable development *** the excellent performance of engineering wood products,modern wood structures represented by light wood structures have gained more development *** an indispensable part of light wood structure systems,the wood-frame shear wall plays a vital role in the bearing capacity and earthquake resistance of light wood structure *** paper is focused on a review of the lateral performance of wood-frame shear walls and classifies the influencing factors in relevant experimental research into three categories,including internal factors such as shear wall structure,external factors such as test scheme,and other factors of material production and test ***,the research prospects in this field were introduced based on the summary of the research *** work can be a reference for further research on the lateral performance of wood-frame shear walls.

关键词： light wood structure lateral performance shear wall basic structure influence factor

A Review of Basic Mechanical Behavior of Laminated Bamboo Lumber

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Journal of Renewable Materials 2022年第2期10卷 273-300页

作者： Assima Dauletbek haitao li Rodolfo Lorenzo Ileana Corbi Ottavia Corbi Mahmud Ashraf College of Civil Engineering Nanjing Forestry UniversityNanjing210037China Joint International Research Laboratory for Bio-Composite Building Materials and Structures Nanjing Forestry UniversityNanjing210037China University College London LondonWC1E 6BTUK University of Naples Federico II Naples80133Italy Deakin University GeelongVIC 3216Australia

Over the past decade,the physical and mechanical performances of laminated bamboo lumber(LBL)–a bamboo-based structural material,have been extensively studied using experimental,analytical,and numerical *** paper presents a review of existing knowledge in the literature about the mechanical properties of *** paper involved the review of the response of LBL to different types of loading such as tension,bending,compres-sion,and *** on results of the literature reviewed,the strength of LBL parallel to grain was 90–124 MPa with MOE of 10700 MPa in tension,29.55–72.60 MPa,and MOE of 8396–11022 MPa in compression,63.87–128.4 MPa,and MOE of 8320–10912 MPa in bending,and 7.15–17.5 MPa in *** average strength of LBL was similar and in some cases exceeded the average values of bamboo-or wood-based materials,while the variability of its mechanical parameters was *** variability in strength values of LBL was affected by bamboo species,density and thickness of bamboo strips,growth portion,type of treatment,strips arrange-ments,and type of adhesive which in turn calls for classification of LBL by strength grades,degree of hardness,the capability of impregnation and penetration,as well as by areas of application in *** study pro-vided and discussed concluding observations,the current research gap,and future research directions on the mechanical properties of LBL.

关键词： Laminated bamboo lumber mechanical properties composites

Review on Bond Properties between Wood and Fiber Reinforced Polymer

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Journal of Renewable Materials 2020年第8期8卷 993-1018页

作者： Zhen Wang haitao li Rodolfo Lorenzo Ileana Corbi Ottavia Corbi Changhua Fang College of Civil Engineering Nanjing Forestry UniversityNanjing210037China Department of Biomaterials International Centre for Bamboo and RattanBeijing100102China University College London LondonWC1E 6BTUK University of Naples Federico II Naples80133Italy

Retrofitting of existing ancient and modern timber structures has been an important project *** it triggers a need of excellent strengthening methods,so does the strengthening of newly built *** strengthening methods have shortcomings such as high costing and destroying the aesthetic of the structure,many of which can be overcome by means of using fiber reinforced polymer(FRP)***,the behavior of FRP-towood systems has yet to be thoroughly researched compared with their FRP-toconcrete or FRP-to-steel *** FRP retrofitting and strengthening timber structures has a promising future,better understanding of their failure modes will enable more precise designs balancing safety and *** of the most common FRP-to-wood systems in the literature are discussed in this paper,namely,the externally bonded reinforcement(EBR),the near-surface mounted(NSM)and the glued-in rods(GiR)*** of the FRP from the substrate is one of the most common failure modes,which exhibits the significance of the interface bond between FRP laminates and ***,bond properties and behavior of FRP-to-wood composite systems are described,parameters influencing the composite action are summarized in this paper,previous works on the bond interface of FRP and timber element are reviewed and future topics are also *** work can provide a reference for future research and engineering applications.

关键词： FRP wood bond strength strengthening retrofitting

The Impact of Aqueous Medium on Gas Yields and Kinetic Behaviors of Hydrogen Isotope Fractionation during Organic Matter Thermal Degradation

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Acta Geologica Sinica(English Edition) 2011年第6期85卷 1466-1477页

作者： LU Shuangfang WANG Min XUE haitao li Jijun CHEN Fangwen XU Qingxia Northeast Petroleum University Heilongjiang Province 163318 China

In order to recognize the impact of aqueous medium on gas yields and the kinetic behaviors of hydrogen isotope fractionation during organic matter thermal degradation, the gold tube apparatus was used to conduct thermal simulation experiments by mixing the nC18 with the water of different properties and proportions. The yields of natural gas components, the relation among hydrogen isotope composition of each component and the experimental temperatures vs. heating rates have been obtained, and the results indicate that under the higher temperature conditions, the hydrous experiment has obvious impact on gas yields, such as when more water is added, higher amounts of hydrocarbon gas and H2 are yielded, and the existence of water obviously prolongs the temperature interval with the existence of heavy hydrocarbon gas. It also shows that the hydrogen isotope of hydrocarbon gas generated by the hydrous experiment is obviously lighter than that generated by the anhydrous experiment, and with the increasing amount of added water, the δD value of hydrocarbon gas gradually decreases. Compared with gas yields, the variation of δD value is more sensitive to aqueous medium in the thermal simulation experiment. However, compared with the amount of the added water, the aqueous medium property has smaller impact on the gas yields, which still shows the inherit effect on hydrogen isotope composition of aqueous medium. Through the model simulation and the isotope fractionation behavior analysis, it is validated that the hydrogen isotope fractionation process can be well described by the chemical kinetic model. The difference of reaction fraction of normal methane and D-containing methane is large, corresponding to the same activation energy. The content of normal methane is obviously higher in the part with lower activation energy, while the content of D-containing methane is higher in the part with higher activation energy. Therefore, it will result in larger hydrogen isotope fracti

关键词： hydrogen isotope fractionation chemical kinetics nC18 gas generation hydrous experiment

A Review of Experimental Research on the Mode I Fracture Behavior of Bamboo

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Journal of Renewable Materials 2023年第6期11卷 2787-2808页

作者： Yue Chen haitao li Lei Gao Wei Xu Rodolfo Lorenzo Milan Gaff College of Civil Engineering Nanjing Forestry UniversityNanjing210037China Joint International Research Laboratory for Bio-Composite Building Materials and Structures Nanjing Forestry UniversityNanjing210037China Department of Civil and Airport Engineering Nanjing University of Aeronautics and AstronauticsNanjing211106China University College London LondonWC1E 6BTUK Department of Furniture Design and Habitat BrnoMendel University in BrnoBrno61300Czech Republic Faculty of Civil Engineering Experimental CentreCzech Technical University in PragueThakurova 7Prague16629Czech Republic

Bamboo is an eco-friendly material with light weight,high strength,short growth cycle and high sustainability,which is widely used in building *** bamboo has further promoted the development of modern bamboo structures due to its unrestricted size and ***,as a fiber-reinforced material,fracture damage,especially Mode I fracture damage,becomes the most likely damage mode of its structure,so Mode I fracture characteristics are an important subject in the research of mechanical properties of *** paper summarizes the current status of experimental research on the Mode I fracture properties of bamboo based on the three-point bending(TPB)method,the single-edge notched beam(SENB)method,the compact tension(CT)method and the double cantilever beam(DCB)method,compares the fracture toughness of different species of bamboo,analyzes the toughening mechanisms and fracture damage modes,discusses the applicability of different theoretical calculation methods,and makes suggestions for future research priorities,aiming to provide a reference for future research and engineering applications in related fields.

关键词： Mode I fracture properties test method toughening mechanism fracture damage modes

（4-Ferrocenylethyne） phenylamine on Graphene as the Signal Amplificator to Determinate Dopamine and Acetaminophen Simultaneously

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Chinese Journal of Chemistry 2013年第6期31卷 845-854页

作者： linping Wang Meiling liu Yue Meng haitao li Youyu Zhang Shouzhuo Yao Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) College of Chemistry and Chemical Engineering Hunan Normal University Changsha Hunan 410081 China

A novel （4-ferrocenylethyne） phenylamine functionalized graphene sheets （FEPA-GR）, coupling with chitosan （CS） were used as a signal amplification platform for simultaneous and sensitive determination of dopamine （DA） and acetaminophen （AC）. In this work, FEPA used as electron transfer mediator can be immobilized on GR surface via strong π-π stacking interaction between the conjugate chain of FEPA and GR, which effectively prevents FEPA electron mediator leaking from the electrode surface and amplified the signal. Transmission electron microscopy, FT-IR spectroscopy, UV-vis spectroscopy and electrochemical experiments results are all demonstrated the strong π-π stacking interaction between FEPA and GR. The resulted biosensor exhibited a fast response, remarkable electrocatalytic activity, perfect anti-interference ability and good stability for simultaneous detection of DA and AC. Under the optimum conditions, the oxidation peak currents of DA and AC were linearly correlated to their concentrations in the range of 2.0-135.0 μmol·L-1 and 0.3--80.0μmol·L 1, respectively. The lower detection limits for DA and AC were 0.30 and 0.05 μmol·L-1, respectively. The feasibility of the proposed method was validated by successfully applied to the simultaneous determination of DA and AC in serum samples with the standard addition method.

关键词： simultaneous electrochemical detection (4-ferrocenylethyne) phenylamine π-π stacking