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Early Paleozoic geodynamic evolution of the Eastern Central Asian Orogenic Belt: Insights from granitoids in the Xing’an and Songnen blocks

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Geoscience Frontiers 2020年第6期11卷 1975-1992页

作者： Xin-Lu Hu Shu-Zhen Yao Cheng-yin Tan Guo-ping Zeng Zhen-Ju Ding Mou-Chun he Faculty of Earth Resources China University of GeosciencesWuhan430074China National Demonstration Center for Experimental Mineral Exploration Education China University of GeosciencesWuhan430074China heilongjiang Mining Group Limited Liability Company Harbin150036China Wuhan Center China Geological SurveyWuhan430205China

The early Paleozoic tectonic framework and evolutionary history of the eastern Central Asian Orogenic Belt(CAOB)is poorly *** we present zircon U-Pb geochronology,whole rock geochemistry,and Sr-NdHf isotope data of the early Paleozoic granitoids in eastern CAOB to investigate the petrogenesis and geodynamic *** early Paleozoic granitoids from the Songnen Block yield zircon U-Pb ages of 523-490 Ma,negative εNd(t)values of-6.7 to-0.8,and values of-8.6 to 7.1,indicating they were generated by partial melting of ancient crustal materials with various degrees of mantle *** generally show affinities to A-type granites,implying their generation from an extensional environment after the collision between the Songnen and Jiamusi *** comparison,the early Paleozoic granitoids from the Xing’an Block have zircon U-Pb ages of 480-465 Ma,εNd(t)values of-5.4 to 5.4,andεHf(t)values of-2.2 to 12.9,indicating a dominated juvenile crustal source with some input of ancient crustal *** belong to I-type granites and were likely related to subduction of the Paleo-Asian *** statistics of TDM2 Hf model ages of the granitoids indicate that the Erguna and Jiamusi blocks contain a significant proportion of Mesoproterozoic crystalline basement,while the Xing’an Block is dominated by a Neoproterozoic *** on these observations,the early Paleozoic evolutionary history of eastern GAOB can be divided into four stages:(1)before 540 Ma,the Erguna,Xing’an,Songnen,and Jiamusi blocks were discrete microcontinents separated by different branches of the Paleo-Asian Ocean;(2)540-523 Ma,the Jiamusi Block collided with the Songnen Block along the Mudanjiang suture;(3)ca.500 Ma,the Erguna Block accreted onto the Xing’an Block along the Xinlin-Xiguitu suture;(4)ca.480 Ma,the Paleo-Asian Ocean started a double-side subduction beneath the united Erguna-Xing’an and Songnen-Jiamusi blocks.

关键词： Early Paleozoic U–Pb geochronology Sr-Nd-Hf isotopes NE China Central Asian Orogenic Belt

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Hypermethylation of thymosinβ4 predicts a poor prognosis for patients with acute-on-chronic hepatitis B liver failure

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hepatobiliary & Pancreatic Diseases International 2023年第4期22卷 373-382页

作者： he Wang Yan-ping yin Zhen-Li Wang Yu Qian Yu-Chen Fan Hui-Hui Liu Kai Wang Department of hepatology Qilu Hospital of Shandong University#107 Wenhuaxi RoadJinan 250012China Department of hepatology Qingdao Sixth People’s HospitalQingdao 266000China Department of Gastroenterology Yantaishan HospitalYantai 264000China Institute of hepatology Shandong UniversityJinan 250012China

Background:It has been demonstrated that thymosinβ4(Tβ4)could inflect the severity of acute-on-chronic hepatitis B liver failure(ACHBLF),but the relationship between its methylation status and the prognosis of liver failure is not *** study aimed to determine Tβ4 promoter methylation status in patients with ACHBLF and to evaluate its prognostic ***:The study recruited 115 patients with ACHBLF,80 with acute-on-chronic hepatitis B pre-liver failure(pre-ACHBLF),and 86 with chronic hepatitis B(CHB).In addition,there were 36 healthy controls(HCs)from the Department of hepatology,Qilu Hospital of Shandong *** 115 patients with ACHBLF were divided into three subgroups:33 with early stage ACHBLF(E-ACHBLF),42 with mid-stage ACHBLF(M-ACHBLF),and 40 with advanced stage ACHBLF(A-ACHBLF).Tβ4 promoter methylation status in peripheral blood mononuclear cells(PBMCs)was measured by methylation-specific polymerase chain reaction,and mRNA was detected by quantitative real-time polymerase chain ***:Methylation frequency of Tβ4 was significantly higher in patients with ACHBLF than in those with pre-ACHBLF,CHB or ***,expression of Tβ4 mRNA showed the opposite *** patients with ACHBLF,Tβ4 promoter methylation status correlated negatively with mRNA *** 3-month mortality of ACHBLF in the methylated group was significantly higher than that in the unmethylated ***,Tβ4 promoter methylation frequency was lower in survivors than in *** used to predict the 1-,2-,and 3-month incidence of ACHBLF,Tβ4 methylation status was better than the model for end-stage liver disease(MELD)*** predictive value of Tβ4 methylation was higher than that of MELD score for the mortality of patients with E-ACHBLF and M-ACHBLF,but not for ***:Tβ4 methylation might be an important early marker for predicting disease incidence and prognosis in patients with ACHBLF.

关键词： Acute-on-chronic hepatitis B liver failure Acute-on-chronic hepatitis B pre-liver failure Thymosinβ4 Methylation Prognosis

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Convergence of some finite element iterative methods related to different Reynolds numbers for the 2D/3D stationary incompressible magnetohydrodynamics

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Science China Mathematics 2016年第3期59卷 589-608页

作者： DONG Xiao Jing he yin Nian School of Mathematics and Statistics Xi'an Jiaotong University

Based on the finite element method(FEM), some iterative methods related to different Reynolds numbers are designed and analyzed for solving the 2D/3D stationary incompressible magnetohydrodynamics(MHD) numerically. Two-level finite element iterative methods, consisting of the classical m-iteration methods on a coarse grid and corrections on a fine grid, are designed to solve the system at low Reynolds numbers under the strong uniqueness condition. One-level Oseen-type iterative method is investigated on a fine mesh at high Reynolds numbers under the weak uniqueness condition. Furthermore, the uniform stability and convergence of these methods with respect to equation parameters R_e, R_m, S_c, mesh sizes h, H and iterative step m are provided. Finally, the efficiency of the proposed methods is confirmed by numerical investigations.

关键词： stationary incompressible magnetohydrodynamics finite element method iterative method twolevel algorithms

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Isoparametric hypersurfaces in Funk spaces

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Science China Mathematics 2017年第12期60卷 2447-2464页

作者： he Qun yin SongTing SheN YiBing School of Mathematical Sciences Tongji University Department of Mathematics and Computer Science Tongling University Department of Mathematics Zhejiang University

Funk metrics are a kind of important Finsler metrics with constant negative flag curvature. In this paper, it is proved that any isoparametric hypersurface in Funk spaces has at most two distinct principal curvatures.... 详细信息

关键词： Finsler-Laplacian isoparametric hypersurfaces Funk metric principal curvature

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A polymeric co-assembly of subunit vaccine with polyoxometalates induces enhanced immune responses

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Nano Research 2022年第5期15卷 4175-4180页

作者： Xinpei Li Xiaofeng he Dongrong he Yuan Liu Kun Chen Panchao yin South China Advanced Institute for Soft Matter Science and Technology School of Molecular Science and EngineeringSouth China University of TechnologyGuangzhou 510640China Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices South China University of TechnologyGuangzhou 510640China

Long-lasting protective immune responses are expected following ***,most vaccines alone are inability to evoke an efficient *** combinatory administration of adjuvants with vaccines is critical for generating the enhanced immune ***,with biocompatible poly(4-vinylpyridine)(P4VP)as template,2.5 nm iron/molybdenum oxide cluster,{Mo_(72)Fe_(30)},is applied as an adjuvant to co-assemble with antigens of Mycobacterium bovis via hydrogen bonding at molecular *** scale integration of the antigens and{Mo_(72)Fe_(30)}and their full exposure to body fluid media contribute to the augmentation of both humoral and cellular immune responses of the vaccines after inoculation in ***-inflammatory factor IL-10 gradually increases after 2 weeks followed by a final back to normal level by the 5th *** balance between proinflammatory cytokines and anti-inflammatory factors suggests that immune system can be activated in the early stage of infection by the antigens carried by the supra-particles and secrete acute inflammatory factors for host defense and anti-inflammatory factors for immune protection.

关键词： co-assembly immune response metal oxide cluster supramolecular interaction vaccine adjuvant

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Face Feature Selection and Recognition Using Separability Criterion and Binary Particle Swarm Optimization Algorithm

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Chinese Journal of Electronics 2014年第2期23卷 361-365页

作者： yin Hongtao FU ping SUN Zhen Automatic Test and Control Institute Harbin Institute of Technology

Discrete cosine transform(DCT) is an effective method to extract proper features for face recognition. Discrete cosine transform can only map the resource data to another data field instead of compress *** to select the DCT coefficients that are most effective for classification is an important problem. This paper proposes a novel method to search the best discriminant combination of DCT coefficients. A feature selection algorithm according to the separability criterion is used to preselect the DCT coefficients, and then follows a search algorithm based on binary particle swarm optimization and support vector machine to find an optimal combination of the DCT coefficient. The performance of the algorithm is assessed by computing the recognition rate and the number of selected features on ORL database and Cropped Yale database.

关键词： Separability criterion Binary particle swarm optimization Support vector machine Face recognition Feature selection

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New Approach for Measured Surface Localization Based on Umbilical Points

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Chinese Journal of Mechanical Engineering 2017年第5期30卷 1203-1215页

作者： Xiao-ping Xiao Ming yin Liang heng Guo-Fu yin Zi-Sheng Li School of Manufacturing Science and Engineering Sichuan University Center of Engineering and Technology Southwest University of Science and Technology School of Manufacturing Science and Engineering Southwest University of Science and Technology

Measured surface localization （MSL） is one of the key essentials for the assessment of form error in pre- cision manufacturing. Currently, the researches on MSL have focused on the corresponding relation search between two surfaces, the performance improvement of localization algorithms and the uncertainty analysis of localization. However, low efficiency, limitation of localization algo- rithms and mismatch of multiple similarities of feature points with no prior are the common disadvantages for MSL. In order to match feature points quickly and fulfill MSL efficiently, this paper presents a new localization approach for measured surfaces by extracting the generic umbilics and estimating their single complex variables, describing the match methods of ambiguous relation at umbilics, presenting the initial localization process of one pair matched points, refining MSL on the basis of obtained closet points for some measured points by the improvement directed projection method. In addition, the proposed algorithm is simulated in two different types of surfaces,two different localization types and multiple similar sur- faces, also tested with the part of B-spline surface machined and bottle mould with no knowledge, finally the initial and accurate rigid body transformation matrix, localization errors between two surfaces and execution time are got. The experimental results show that the pro- posed method is feasible, more accurate in localization and high in efficiency. The proposed research can not only improve the accuracy and performance of form error assessment, but also provide an effective guideline for the integration of different types of measured surfaces.

关键词： Measured surface localization Umbilicalpoints and complex variable Similar surface patchesInitial and accurate localization

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A NOVEL SYNTheTIC METHOD FOR The CLUSTERS FeCo_2(CO)_9- (RCCR)(R=MeO_2C,EtO_2C).X-RAY CRYSTAL STRUCTURE ANALYSESOF The CLUSTERS FeCo_2(CO)_9(MeO_2CCCCO_2Me) and Co_4(CO)_(10)-(EtO_2CCCCO_2Et)

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Chinese Chemical Letters 1996年第6期7卷 585-588页

作者： Wu, he ping yin, Yuan Qi Yu, Kai Bei Huang, Xiao ying Lanzhou Inst. of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 Chengdu Anal. Determination Center Chinese Academy of Sciences Chengdu 610041 Fuzhou Inst. Res. Struct. of Matter Chinese Academy of Sciences State Key Lab. of Struct. Chemistry Fuzhou 350002

A novel synthetic method for the clusters FeCo2(CO)9(RCCR)(R=MeO2C,MeO2C), which isthe reaction of Co4(CO)10(RCCR) with Na2[Fe(CO)4], have been found by studying on tile thermal reactionbetween RCCo3(CO)9 with Na2[Fe(CO)4]. X-ray crystal structural determinations have been made for theclusters FeCo2(CO)9(MeO2CCCCO2Me) and Co4(CO)10(EtO2CCCCO2Et)

关键词： CO FeCo2 RCCR ANALYSES CLUSTERS

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CO_(2) emissions reduction performance of China’s HSR based on substitution effect and demand effect

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Transportation Safety and Environment 2023年第3期5卷 38-45页

作者： Liying Wang ping yin Shangqing Liu School of Economics and Management Beijing Jiaotong UniversityBeijing 100044China

As an important transportation infrastructure and transportation backbone in China,high-speed rail(HSR)plays a critical role in promoting the development of green and low-carbon *** the CO_(2) emissions reduction performance of HSR will be conduci v e to pr omote the CO_(2) emissions r eduction w ork of the r ail w *** on the Dalkic HSR CO_(2) emissions r eduction performance model,by adjusting the HSR CO_(2) emission factor(CEF HSR),the annual times of departures(T)and other parameters,this study develops a Chinese HSR CO_(2) emissions reduction performance *** the Beijing-Shanghai HSR as the resear c h object,this study conducts a questionnaire survey to explore the substitution effect and demand effect of HSR on different transportation modes;collects data such as passenger v olume,av era ge electricity use and annual times of departures of the Beijing-Shanghai HSR in 2019;and calculates the CO_(2) emissions reduction performance of the Beijing-Shanghai *** study has two main results:(1)It builds a Chinese HSR CO_(2) emissions reduction performance model based on substitution effect and demand effect.(2)In 2019,the CO_(2) emissions of the Beijing-Shanghai HSR are 2898233.62 t,the CO_(2) emissions reduction performance of the Beijing-Shanghai HSR is 17999482.8 t,the annual CO_(2) emissions of the Beijing-Shanghai line in‘No HSR’case are 7.2 times as in the’HSR’case and the PKT of the HSR is 10.2 g/*** on the research results,this study proposes three CO_(2) emissions reduction policy *** study would be helpful for further HSR CO_(2) emissions reduction resear c h and departments related to railway transportation management to make CO_(2) emissions reduction policies.

关键词： high-speed rail(HSR) CO_(2)emissions CO_(2)emissions reduction performance model Beijing-Shanghai HSR

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Application of Non-invasive Microsensing System to Simultaneously Measure Both H^＋ and O2 Fluxes Around the Pollen Tube

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Journal of Integrative Plant Biology 2006年第7期48卷 823-831页

作者： Yue Xu Tong Sun Li-ping yin College of Life Sciences Capital Normal University Beijing 100037 China Younger USA Company Cary NC 27513 USA Vibrating Probe Facility Biology Department University of Massachusetts at Amherst MA 01003 USA

Various Ionic and molecular activities in the extraceUular environment are vital to plant cell physiological processes. A noninvasive microsensing system （NMS） based on either the scanning ion-selective electrode technique （SIET） or the scanning polarographlc electrode technique （SPET） is able to obtain information regarding the transportation of various Ions/molecules in Intact samples under normal physiological conditions. The two-probe simultaneous test system （2STS） Is an Integrated system composed of SIET, SPET, and a Xu-Kunkel sampling protocol. In the present study, 2STS was able to simultaneously measure fluxes of H^＋ and O2 of the Uly （Lillum Iongiflorum Thunb. cv. Ace） pollen tube while avoiding interference between the two probes. The results Indicate that the proton fluxes were effluxes, whereas the oxygen fluxes were Influxes, and they were closely correlated to each other surrounding the constitutive alkaline band region. Specifically, when the proton effluxes increased, the oxygen Influxes also increased. Therefore, the hypothesis of condensed active mitochondria existing in the alkalized area of the pollen tube proposed by hepler＇s group is supported.

关键词： non-invasive microsensing system (NMS) oxygen fluxes pollen tube proton fluxes scanning ion-selective electrode technique (SIET) scanning polarographic electrode technique (SPET) two-probe simultaneous test system (2STS).

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