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| 1 | The strengthening East Asia summer monsoon since the early 1990s显示文摘Previous studies have documented a weakening tendency of the East Asian summer monsoon (EASM) since the end of the 1970s. In this study, we report that the EASM has been recovering since the early 1990s, although its strength is still less than in previous decades (averaged over the period 1965-1980). Following the recovery of the EASM, there has been a tendency in the last decade toward northward-moving rainbands and excessive rainfall in the Huaihe River valley (110°-120°E, 30°-35°N). There is evidence suggesting that the strengthening EASM since the early 1990s is linked to interdecadal change of land-sea thermal contrast. | LIU HaiWen ZHOU TianJun ZHU YuXiang LIN YiHua | 2012 | Chinese Science Bulletin2012，57，13： | 23 |
| 2 | Does conflict matter in the success of mass collaboration? Investigating antecedents and consequence of conflict in Wikipedia显示文摘Purpose: Web2.0 has facilitated the emergence of mass collaboration. Being a new model of virtual collaboration, mass collaboration has distinct characteristics such as self-organized voluntary participation and many-to-many communications mechanism. Behind the sparking achievements, mass collaboration systems are suffering from high coordination cost, reflecting intense conflict among the participants. This study explains how conflict interacts with its antecedents(participation and task complexity) and decedent(group performance) related to the mass collaboration process.Design/methodology/approach: Theoretical model is built upon literatures. Twenty-six measurable items, including social network indices used to reflect conflicts(e.g., density and degree), are extracted from Wikipedia database. The structural equation modeling is used to validate the proposed model.Findings: Participation increases task complexity, conflict and performance; task complexity and conflict increase group performance, but task complexity decreases conflict.Research limitations: This study is limited to one mass collaboration platform, other contexts can cause variance in the result. More characteristics of conflict network(e.g., self-loop)should be taken into consideration in future studies.Practical implications: Conflict management is critical to mass collaboration, and functions that increase the awareness of conflict may motivate users to participant, resulting better group performance.Originality/value: Few studies have investigated the consequences of conflict in mass collaboration context. Meanwhile, limited number of social network studies build network based on negative link. Moreover, most of extant studies on Wiki are descriptive researches without theoretical model. This study builds a theoretical model and incorporates social network approach to explore the influence of conflict. | Kewen WU Qinghua ZHU Julita VASSILEVA Yuxiang ZHAO | 2012 | Chinese Journal of Library and Information Science2012，，1： | 8 |
| 3 | Long-term effects of early antibiotic intervention on blood parameters,apparent nutrient digestibility, and fecal microbial fermentation profile in pigs with different dietary protein levels显示文摘Backgroud: This study aimed to determine the effects of early antibiotic intervention(EAI) on subsequent blood parameters, apparent nutrient digestibility, and fecal fermentation profile in pigs with different dietary crude protein(CP) levels. Eighteen litters of piglets(total 212) were randomly allocated to 2 groups and were fed a creep feed diet with or without in-feed antibiotics(olaquindox, oxytetracycline calcium and kitasamycin) from postnatal d 7 to d 42. On d 42, the piglets within the control or antibiotic group were mixed, respectively, and then further randomly assigned to a normal-(20%, 18%, and 14% CP from d 42 to d 77, d 77 to d 120, and d 120 to d 185,respectively) or a low-CP diet(16%, 14%, and 10% CP from d 42 to d 77, d 77 to d 120, and d 120 to d 185,respectively), generating 4 groups. On d 77(short-term) and d 185(long-term), serum and fecal samples were obtained for blood parameters, microbial composition and microbial metabolism analysis.Results: EAI increased(P < 0.05) albumin and glucose concentrations in low-CP diet on d 77, and increased(P < 0.05) urea concentration in normal-CP diet. On d 185, EAI increased(P < 0.05) globulin concentration in normal-CP diets, but decreased glucose concentration. For nutrient digestibility, EAI increased(P < 0.05)digestibility of CP on d 77. For fecal microbiota, the EAI as well as low-CP diet decreased(P < 0.05) E. coli count on d 77. For fecal metabolites, on d 77, EAI decreased(P < 0.05) total amines concentration but increased skatole concentration in low-CP diet. On d 185, the EAI increased(P < 0.05) putrescine and total amines concentrations in low-CP diets but reduced(P < 0.05) in the normal-CP diets. The low-CP diet decreased the concentrations of these compounds.Conclusions: Collectively, these results indicate that EAI has short-term effects on the blood parameters and fecal microbial fermentation profile. The effects of EAI varied between CP levels, which was characterized by the significant alteration of glucose and putrescine concentration. | Miao Yu Chuanjian Zhang Yuxiang Yang Chunlong Mu Yong Su Kaifan Yu Weiyun Zhu | 2018 | Journal of Animal Science and Biotechnology2018，9，1： | 6 |
| 4 | Molecular mechanism of endocrine-disruptive effects induced by Bisphenol A:The role of transmembrane G-protein estrogen receptor 1 and integrin αvβ3显示文摘Bisphenol A(BPA) is one of the highest volume industrial products worldwide and has been widely used to make various products as the intermediates of polycarbonate plastics and epoxy resins.Inevitably, general population has been widely exposed to BPA due to extensive use of BPAcontaining products. BPA has similar chemical structure with the natural estrogen and has been shown to induce a variety of estrogen-like endocrine effects on organism in vivo or in vitro. High doses of BPA tend to act as antagonist of estrogen receptors(ERs) by directly regulating the genomic transcription. However, BPA at environmentally relevant low-dose always disrupt the biological function via a non-genomic manner mediated by membrane receptors, rather than ERs. Although some studies had investigated the non-genomic effects of low-dose BPA, the exact molecular mechanism still remains unclear. Recently, we found that membrane G protein-coupled estrogen receptor 1 and integrin αvβ3 and its relative signal pathways participate in the induction of male germ cell proliferation and thyroid transcription disruption by the low-dose BPA. A profound understanding for the mechanism of action of the environmentally relevant BPA exposure not only contributes to objectively evaluate and predict the potential influence to human health, but also provides theoretical basis and methodological support for assessing health effects trigged by other estrogen-like environmental endocrine disruptors. Based mainly on our recent findings, this review outlines the research progress of molecular mechanism on endocrine disrupting effects of environmental low-dose BPA, existing problems and some consideration for future studies. | Zhiguo Sheng Cong Wang Furong Ren Yuxiang Liu Benzhan Zhu | 2019 | Journal of Environmental Sciences2019，31，1： | 6 |
| 5 | Petrogenesis and Tectonic Implications of Peralkaline A-Type Granites and Syenites from the Suizhou-Zaoyang Region,Central China显示文摘In this study, we present systematic petrological, geochemical, LA-ICP-MS zircon U-Pb ages and Nd isotopic data for the A-type granites and syenites from Suizhou-Zaoyang region. The results show that the peralkaline A-type granites and syenites were episodically emplaced in Suizhou-Zaoyang region between 450±3 and 441±7 Ma which corresponds to Late Ordovician and Early Silurian periods, respectively. Petrologically, the syenite-peralkaline granite association comprises of nepheline normative-syenite and alkaline granite in Guanzishan and quartz normative syenite and alkaline granite in Huangyangshan. The syenite-granite associations are ferroan to alkali in composition. They depict characteristics of typical OIB(oceanic island basalts) derived A-type granites in multi-elements primitive normalized diagram and Yb/Ta vs. Y/Nb as well as Ce/Nb vs. Y/Nb binary plots. Significant depletion in Ba, Sr, P, Ti and Eu indicates fractionation of feldspars, biotite, amphiboles and Ti-rich augite. The values of ?Nd(t) in Guanzishan nepheline syenite and alkaline granite are +1.81 and +2.26, respectively and the calculated two-stage model age for these rocks are 1 040 and 1 003 Ma, respectively. On the other hand, the Huangyangshan alkaline granite has ?Nd(t) values ranging from +2.61 to +3.46 and a relatively younger two-stage Nd model age values ranging from 906 to 975 Ma, respectively. Based on these data, we inferred that the Guanzishan nepheline syenites and granites were formed from fractional crystallization of OIB-like basic magmas derived from upwelling of metasomatized lithospheric mantle. The Huangyangshan quartz syenite and granite on the other hand, were formed from similar magmas through fractional crystallization with low input from the ancient crustal rocks. Typically, the rocks exhibit A1-type granite affinity and classified as within plate granites associated with the Ordovician crustal extension and the Silurian rifting. | Hafizullah Abba Ahmed Changqian Ma Lianxun Wang Ladislav A.Palinkas Musa Bala Girei Yuxiang Zhu Mukhtar Habib | 2018 | Journal of Earth Science2018，29，5： | 5 |
| 6 | Expression Analysis of Genes Related to Auxin Metabolism at Different Growth Stages of Pak Choi显示文摘Pak choi is a low-temperature vernalized plant that readily undergoes premature bolting during spring, but little is known about the governing molecular regulation of vernalization. In order to enhance our understanding of mechanism about premature bolting, we discussed the relationship between auxin(indole-3-acetic acid, IAA) and flowering of pak choi. During vernalization, hormone metabolism is an important regulatory pathway, and IAA plays a specific role. IAA metabolism has been studied in Arabidopsis thaliana and other plants, but not in pak choi. In this paper, the IAA content in pak choi shoot apices during vernalization and different growth stages was compared. The IAA content decreased significantly after low-temperature treatment(4 °C) and then increased rapidly during vegetative growth. During floral bud initiation,the IAA content decreased rapidly and was the lowest. Expressions of genes encoding key IAA metabolic enzymes were analyzed, and a major synthetase-encoding gene was downregulated, while a key degrading enzyme-encoding gene was upregulated during each comparison period,resulting in decreased IAA content. Expressions of four genes(Bra034975, Bra030246, Bra012239 and Bra040296) were consistent with changes in the IAA content. The functions of differentially expressed genes(DEGs) were analyzed, and 15 DEGs were found to be related to IAA metabolism.The findings illuminated the molecular mechanism regulating IAA content during vernalization in pak choi. | Yuxiang Hou Xueting Wang Zhujun Zhu Mengxia Sun Meilan Li Leiping Hou | 2020 | Horticultural Plant Journal2020，6，1： | 4 |
| 7 | Understanding pitting corrosion behavior of AZ91 alloy and its MAO coating in 3.5%NaCl solution by cyclic potentiodynamic polarization显示文摘The pitting corrosion behavior of AZ91 alloy before and after micro-oxidation treatment in 3.5%Na Cl solution was investigated by cyclic potentiodynamic polarization(CPDP)and optical and SEM observations of corroded surfaces at different polarization potentials.The CPDP results show that both the alloy and the MAO-coated alloy suffer from pitting corrosion and it is difficult for pits to stop growth once the pits initiates.It is revealed that the air-formed Mg O film on AZ91 alloy,the MAO coating along with corrosion products(mainly Mg(OH))formed during CPDP can significantly influence the kinetics of the redox reactions of Mg,and further influence the propagation behavior of pitting corrosion.The optical and SEM images show that the corrosion products on AZ91 alloy are dense and protective but on the MAO-coated corrosion products are very loose.Such observations support the analyses of CPDP results that pits on AZ91 alloy spread to the width whereas pits on MAO-coated alloy propagate to the depth.Overall,pitting corrosion on the MAO-coated alloy can be very severe once the coating ruptures and post-treatments are necessary to provide a promising corrosion protection for the Mg alloys. | Yuxiang Liu Zhu Liu Anyang Xu Xiaoting Liu | 2022 | Journal of Magnesium and Alloys2022，10，5： | 3 |
| 8 | High-performance all-polymer solar cells enabled by a novel low bandgap non-fully conjugated polymer acceptor显示文摘The non-fully conjugated polymer as a new class of acceptor materials has shown some advantages over its small molecular counterpart when used in photoactive layers for all-polymer solar cells(all-PSCs),despite a low power conversion efficiency(PCE)caused by its narrow absorption spectra.Herein,a novel non-fully conjugated polymer acceptor PFY-2TS with a low bandgap of~1.40 eV was developed,via polymerizing a largeπ-fused small molecule acceptor(SMA)building block(namely YBO)with a non-conjugated thioalkyl linkage.Compared with its precursor YBO,PFY-2TS retains a similar low bandgap but a higher LUMO level.Moreover,compared with the structural analog of YBO-based fully conjugated polymer acceptor PFY-DTC,PFY-2TS shows a similar absorption spectrum and electron mobility,but significantly different molecular crystallinity and aggregation properties,which results in optimal blend morphology with a polymer donor PBDB-T and physical processes of the device in all-PSCs.As a result,PFY-2TS-based all-PSCs achieved a PCE of 12.31%with a small energy loss of 0.56 eV enabled by the reduced non-radiative energy loss(0.24 eV),which is better than that of 11.08%for the PFY-DTC-based ones.Our work clearly demonstrated that non-fully conjugated polymers as a new class of acceptor materials are very promising for the development of high-performance all-PSCs. | Qunping Fan Ruijie Ma Tao Liu Jianwei Yu Yiqun Xiao Wenyan Su Guilong Cai Yuxiang Li Wenhong Peng Tao Guo Zhenghui Luo Huiliang Sun Lintao Hou Weiguo Zhu Xinhui Lu Feng Gao Ellen Moons Donghong Yu He Yan Ergang Wang | 2021 | Science China Chemistry2021，64，8： | 3 |
| 9 | Novel magnetic silk fibroin scaffolds with delayed degradation for potential long-distance vascular repair显示文摘Although with the good biological properties,silk fibroin(SF)is immensely restrained in long-distance vascular defect repair due to its relatively fast degradation and inferior mechanical properties.It is necessary to construct a multifunctional composite scaffold based on SF.In this study,a novel magnetic SF scaffold(MSFCs)was prepared by an improved infiltration method.Compared with SF scaffold(SFC),MSFCs were found to have better crystallinity,magnetocaloric properties,and mechanical strength,which was ascribed to the rational introduction of iron-based magnetic nanoparticles(MNPs).Moreover,in vivo and in vitro experiments demonstrated that the degradation of MSFCs was significantly extended.The mechanism of delayed degradation was correlated with the dual effect that was the newly formed hydrogen bonds between SFC and MNPs and the complexing to tyrosine(Try)to inhibit hydrolase by internal iron atoms.Besides,theβ-crystallization of protein in MSFCs was increased with the rise of iron concentration,proving the beneficial effect after MNPS doped.Furthermore,although macrophages could phagocytose the released MNPs,it did not affect their function,and even a reasonable level might cause some cytokines to be upregulated.Finally,in vitro and in vivo studies demonstrated that MSFCs showed excellent biocompatibility and the growth promotion effect on CD34-labeled vascular endothelial cells(VECs).In conclusion,we confirm that the doping of MNPs can significantly reduce the degradation of SFC and thus provide an innovative perspective of multifunctional biocomposites for tissue engineering. | Xin Liu Yuxiang Sun Bo Chen Yan Li Peng Zhu Peng Wang Sen Yan Yao Li Fang Yang Ning Gu | 2022 | Bioactive Materials2022，7，1： | 3 |
| 10 | A new sodium iron phosphate as a stable high-rate cathode material for sodium ion batteries显示文摘Low-cost room-temperature sodium-ion batteries (SIBs) are expected to promote the development of stationary energy storage applications.However,due to the large size of Na+,most Na+ host structures resembling their Li+ counterparts show sluggish ion mobility and destructive volume changes during Na ion (de)intercalation,resulting in unsatisfactory rate and cycling performances.Herein,we report a new type of sodium iron phosphate (Na0.71Fe1.07PO4),which exhibits an extremely small volume change (~ 1%) during desodiation.When applied as a cathode material for SIBs,this new phosphate delivers a capacity of 78 mA·h·g-1 even at a high rate of 50 C and maintains its capacity over 5,000 cycles at 20 C.In situ synchrotron characterization disclosed a highly reversible solid-solution mechanism during charging/discharging.The findings are believed to contribute to the development of high-performance batteries based on Earth-abundant elements. | Xiaobo Zhu Takashi Mochiku Hiroki Fujii Kaibin Tang Yuxiang Hu Zhenguo Huang Bin Luo Kiyoshi Ozawa Lianzhou Wang | 2018 | Nano Research2018，11，12： | 3 |
| 11 | The early-warning effects of assimilation of the observations over the large-scale slope of the “World Roof” on its downstream weather forecasting显示文摘To improve the numerical simulation of the severe snow storms occurred in the south of China and the middle/lower reaches of Changjiang River during January of 2008, the observations from the automatic weather stations (AWS) over the Qinghai-Xizang Plateau (QXP) and its surrounding areas were assimi-lated into the Weather Research and Forecasts (WRF) model using multi-cycle 3-dimensional varia-tional data assimilation (3DVAR). Due to the large-scale special topography of the QXP and its sur-rounding areas which may reach up to the mid-troposphere, the AWS located at different height on the deep slope of the plateau are different to those located on plains and take a role analogous in some extent to that of radio soundings in obtaining the vertical 'profile' information of the atmosphere, and have the advantages in the aspects of sampling frequency, location/height fixing, and synchronization. The information captured by these AWS may carry the early-warning 'strong signals' in the upstream sensitive area for the downstream weather systems to the east of the plateau and thus the assimilation of these AWS data is expected to lead to significant improvements on the simulation of the severe weather system occurred in its downstream areas through adjusting the 3-dimensional structures of the atmospheric thermal-dynamics for the initial conditions of the model. This study indicates that the assimilated information of moisture, temperature and pressure carried in the observations of AWS over the Qinghai-Xizang Plateau and its surrounding areas is very important and useful in the forecasting of precipitation in its downstream areas. | PENG ShiQiu XU XiangDe SHI XiaoHui WANG DongXiao ZHU YuXiang PU JingJiao | 2009 | Chinese Science Bulletin2009，54，4： | 2 |
| 12 | Dissimilatory iron reduction contributes to anaerobic mineralization of sediment in a shallow transboundary lake显示文摘Dissimilatory iron reduction(DIR)coupled with carbon cycling is increasingly being recognized as an influential process in freshwater wetland soils and sediments.The role of DIR in organic matter(OM)mineralization,however,is still largely unknown in lake sediment environments.In this study,we clarified rates and pathways of OM mineralization in two shallow lakes with seasonal hydrological connectivity and different eutrophic situations.We found that in comparison with the domination of DIR(55%)for OM mineralization in Lake Xiaoxingkai,the contribution of methanogenesis was much higher(68%)in its connected lake(Lake Xingkai).The differences in rates and pathways of sediment OM mineralization between the two lakes were attributed to higher concentrations of carbonate associated iron oxides(Fecarb)in Lake Xiaoxingkai compared to Lake Xingkai(P=0.002),due to better deposition mixing,more contributions of terrigenous detrital materials,and higher OM content in Lake Xiaoxingkai.Results of structural equation modeling showed that Fecarb and total iron content(TFe)regulated 25%of DIR in Lake Xiaoxingkai and 76%in Lake Xingkai,accompanied by a negative effect of TFe on methanogenesis in Lake Xingkai.The relative abundance and diversity of Fe-reducing bacteria were significantly different between the two lakes,and showed a weak effect on sediment OM mineralization.Our findings emphasize the role of iron minerals and geochemical characterizations in regulating rates and pathways of OM mineralization,and deepen the understanding of carbon cycling in lake sediments. | Yuxiang Yuan Cong Ding Haitao Wu Xue Tian Min Luo Weiyi Chang Lei Qin Liang Yang Yuanchun Zou Kaikai Dong Xiaoyan Zhu Ming Jiang Marinus L.Otte | 2023 | Fundamental Research2023，3，6： | 2 |
| 13 | Knowledge of“Guidelines for the prevention of intravascular catheter-related infections(2011)”:A survey of intensive care unit nursing staffs in China显示文摘Aims and objectives:To evaluate intensive care unit(ICU)nurses'knowledge of the updated guidelines for the prevention of intravascular catheter-related infections;to identify the factors that affect the nurses'knowledge and to explore the barriers to adherence to evidence-based guidelines in clinical practice in China.Methods:Cross-sectional surveys were carried out in Chinese ICUs from January 2013 to March 2014.The nurses'demographic information,knowledge of the guidelines,and barriers to adherence were assessed by a validated questionnaire and then analyzed statistically.Results:The questionnaires were completed by 455 ICU nurses from 4 provinces of China.The mean score was 8.17 of 20,and higher scores were significantly associated with province,years of experience,and years of ICU experience.Forty-nine(10.7%)nurses had not heard of the guidelines,whereas 231(50.7%)nurses heard of the guidelines but did not receive training for them.Trained nurses'scores were higher than untrained nurses'scores.The three main barriers to compliance with the guidelines were an unfamiliarity with them,an excessive workload due to a shortage of nurses,and a lack of training.Conclusions:ICU nurses'knowledge of the updated guidelines is quite low,which could be a potential risk factor for patient safety.Multidisciplinary interventions and continuous. | Shaolin Chen Jun Yao Jianhua Chen Lijuan Liu Aifeng Miu Yulan Jiang Jie Zhu Siyuan Tang Yuxiang Chen | 2015 | International Journal of Nursing Sciences2015，2，4： | 2 |
| 14 | Geochronology,Geochemistry and Sr-Nd-Pb Isotopic Study of the Wulong Flower-Like Glomerophyric Diorite Porphyry(Central China):Implications for Tectonic Evolution of Eastern Qinling显示文摘The Wulong diorite porphyry displays a very unusual flower-like glomerophyric texture and is thus well-known as a gemstone type of 'Luoyang peony stone' for non-geologists. Hereby, we present a comprehensive study in terms of petrography, zircon U-Pb geochronology, geochemistry and Sr-Nd-Pb isotope. The rock exposed as small-scale dykes in the field, intruding in the Archean migmatized biotiteplagioclase genesis at the southern margin of the North China Craton. It exhibits typical porphyrite texture with plagioclase and amphibole as dominant and subdominant phenocrysts, respectively. The diorite porphyry rocks contain 51 wt.%–59 wt.% SiO_2, belonging to medium-K calc-alkaline rock series. They are characterized by enrichment of large ion lithophile elements(LILEs, e.g., Ba) and depletion of high field-strength elements(HFSEs, e.g., Nb, Ta, Zr and Hf), resembling island arc magmatic rocks. They show high initial Sr isotopic ratios(0.710 7–0.715 8), low ε_(Nd)(t) values(-9.9 to-13.3) and variable initial Pb isotopic ratios(^(206)Pb/^(204)Pb vary from 17.3 to 19.3), similar to the coeval intermediate and mafic magmatic rocks of adjacent region. These geochemical features indicate that the Wulong diorite porphyry is likely to originate from an enriched mantle with contamination of crustal materials. Zircon U-Pb dating results reveal a magma crystallization age of 480±3 Ma, consistent with the summit of the magmatic events of the Qinling orogenic belt and reflecting the northernmost Paleozoic magmatic activity of the belt. This may indicate the influence of northward subduction of Paleotethyan oceanic slab can extend a distance of ca. 200 km to the north and reach Luoyang-Songshan region in the East Qinling Orogen. | Yuxiang Zhu Lianxun Wang Changqian Ma Chao Zhang Ke Wang | 2018 | Journal of Earth Science2018，29，5： | 2 |
| 15 | Evaluation on crowdsourcing research: Current status and future direction显示文摘 | Yuxiang Zhao Qinghua Zhu | 2014 | Information Systems Frontiers2014，，3： | 2 |
| 16 | ESMD-Flow: An Intelligent Flow Forwarding Scheme with Endogenous Security Based on Mimic Defense in Space-Air-Ground Integrated Network显示文摘The Space-Air-Ground Integrated Network(SAGIN) realizes the integration of space, air,and ground networks, obtaining the global communication coverage.Software-Defined Networking(SDN) architecture in SAGIN has become a promising solution to guarantee the Quality of Service(QoS).However, the current routing algorithms mainly focus on the QoS of the service, rarely considering the security requirement of flow. To realize the secure transmission of flows in SAGIN, we propose an intelligent flow forwarding scheme with endogenous security based on Mimic Defense(ESMD-Flow). In this scheme, SDN controller will evaluate the reliability of nodes and links, isolate malicious nodes based on the reliability evaluation value, and adapt multipath routing strategy to ensure that flows are always forwarded along the most reliable multiple paths. In addition, in order to meet the security requirement of flows, we introduce the programming data plane to design a multiprotocol forwarding strategy for realizing the multiprotocol dynamic forwarding of flows. ESMD-Flow can reduce the network attack surface and improve the secure transmission capability of flows by implementing multipath routing and multi-protocol hybrid forwarding mechanism. The extensive simulations demonstrate that ESMD-Flow can significantly improve the average path reliability for routing and increase the difficulty of network eavesdropping while improving the network throughput and reducing the average packet delay. | Ziyong Li Yuxiang Hu Di Zhu JiangxingWu Yunjie Gu | 2022 | China Communications2022，19，1： | 1 |
| 17 | MicroRNAs‐372/373 promote the expression of hepatitis B virus through the targeting of nuclear factor I/B显示文摘 | Hongyan Guo Haiying Liu Keith Mitchelson Huiying Rao Mingyong Luo Lan Xie Yimin Sun Liang Zhang Ying Lu Ruyu Liu Aihui Ren Shuai Liu Shaozhen Zhou Jiye Zhu Yuxiang Zhou Ailong Huang Lai Wei Yong Guo Jing Cheng | 2011 | Hepatology2011，，3： | 1 |
| 18 | Parameter optimization of fluted-roller meter using discrete element method显示文摘The most important performance indicator of a fertilizer metering mechanism is the evenness of fertilizer flow.In this study,a regression mathematical model between the key operating parameters of the fluted roller meter and the flow evenness was developed to simulate a fluted-roller meter for metering diammonium phosphate fertilizer using the discrete element method(DEM).The model was verified by bench test using the same equipment and parameters as the DEM model.Selected working parameters of the fluted-roller meter,including roll length(L),roll rotational speed(n),and flap angle(α)(for fertilizer discharge control),were optimized to maximize the flow evenness.Flow evenness was assessed by the coefficient of variation(CV)of the discharging mass during the operation.The simulation and experiment results showed the similar trends,in terms of effects of machine parameters on the CV.The relative errors ranged from 0.2%to 34.6%with a mean of 10.5%.This demonstrated that the DEM model was feasible to simulate the metering process of the fluted-roller meter.The machine parameters that significantly affected the values of CV in descending order wereα,L and n.Both simulation and measurement results revealed that the optimal machine parameters,represented by the minimum value of CV,were observed at L=45 mm,n=55 r/min andα=22.5°.This combination of parameters returned CV values of 10.89%and 9.55%for simulations and measurements,respectively.The study provided useful information for guiding the design and selection of machine parameters for metering devices for fertilizer applications. | Yuxiang Huang Botao Wang Yuxiang Yao Shangpeng Ding Junchang Zhang Ruixiang Zhu | 2018 | International Journal of Agricultural and Biological Engineering2018，11，6： | 1 |
| 19 | A Case Similarity Calculation Model Based on the Urban Flooding Case with Stratified Data Characteristics显示文摘As the pace of urbanization is accelerating, increasing amount of floodplain has been projected as the future cities. Subsequently, urban flooding is being studied by global emergency management exports due to its increasingly significant impact on us. Some existing research on flooding emergency management based on the case-based reasoning(CBR) method have made tremendous progress, but the urban flooding case with its stratified data characteristics is required a new methodology which is different from the ones applied to flash floods. So, based on the case-based reasoning(CBR) method, this paper proposed a CPIE-CBR model with four layers, classification filtration, punctiform similarity, interval similarity and entropy weight method, to calculate the case similarity among the urban flooding case with stratified data characteristics. Then we carry out the numerical simulation with the real data about China and conduct some comparison with original ways so that we observe the validity and efficiency of our model in the end. | Xiaoyu ZHU Yuxiang FAN Junguang GAO | 2018 | Journal of Systems Science and Information2018，9，2： | 1 |
| 20 | Evaluations on social network analysis (SNA) research in China's Mainland:A critical assessment of journal literatures显示文摘Social network analysis(SNA)has been introduced to China's Mainland since the end of last century.It is often stated that SNA research has experienced rapid growth in China over these years,but few studies have been conducted to prove the statement.This paper aims at exploring the research status and development of SNA in China by a critical assessment of journal articles.Our findings show that SNA is an evolving and diversified research area which has rich themes and topics,and can be applied to those studies on different levels,context and disciplines,and attract researchers and scholars from various fields and domains.In addition,the information community(Library&Information Science and Information Systems)plays a leading role in the SNA related researches.The paper also points out the research on SNA in China has some limitations,so it proposes several implications for the future development of SNA research from perspectives of information science. | ZHAO Yuxiang Wu Kewen ZHU Qinghua | 2010 | Chinese Journal of Library and Information Science2010，，4： | 1 |
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