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| 1 | An integrated virtual geographic environmental simulation framework:a case study of flood disaster simulation显示文摘Dynamic flood disaster simulation is an emerging and promising technology significantly useful in urban planning,risk assessment,and integrated decision support systems.It is still an important issue to integrate the large assets such as dynamic observational data,numerical flood simulation models,geographic information technologies,and computing resources into a unified framework.For the intended end user,it is also a holistic solution to create computer interpretable representations and gain insightful understanding of the dynamic disaster processes,the complex impacts,and interactions of disaster factors.In particular,it is still difficult to access and join harmonized data,processing algorithms,and models that are provided by different environmental information infrastructures.In this paper,we demonstrate a virtual geographic environments-based integrated environmental simulation framework for flood disaster management based on the notion of interlinked resources,which is capable of automated accumulating and manipulating of sensor data,creating dynamic geo-analysis and three-dimensional visualizations of ongoing geo-process,and updating the contents of simulation models representing the real environment.The prototype system is evaluated by applying it as a proof of concept to integrate in situ weather observations,numerical weather and flood disaster simulation models,visualization,and analysis of the real time flood event.Case applications indicate that the developed framework can be adopted for use by decision-makers for short-term planning and control since the resulting simulation and visualization are completely based on the latest status of environment. | Yulin DING Qing ZHU Hui LIN | 2014 | Geo-Spatial Information Science2014，17，4： | 9 |
| 2 | A Double Input-parallel-output-series Hybrid Switched-capacitor Boost Converter显示文摘A double input-parallel-output-series hybrid switched-capacitor boost(DIPOS-HSCB)converter is proposed which consists of two different kinds of input-parallel-output-series(IPOS)circuits,i.e.,inner IPOS circuit and outer IPOS circuit.Two boost modules and one switched-capacitor network build an inner IPOS circuit based IPOS-HSCB converter and two IPOS-HSCB converters develop the outer IPOS circuit based DIPOS-HSCB converter.With the proposed DIPOS-HSCB converter,a high voltage-gain with low component stress and small input current ripple are achieved.Furthermore,an automatic current balancing function for all input inductor currents can be also achieved using a special carrier phase-shifted modulation scheme.A prototype rated at 200 V/120 W has been developed and the maximum efficiency of the proposed DIPOS-HSCB converter is 95% at 120 W.Both steady and dynamic results are presented to validate the effectiveness of the proposed DIPOS-HSCB converter. | Jianfei Chen Kewei Ding Yulin Zhong Fujin Deng Sayed Abulanwar | 2020 | Chinese Journal of Electrical Engineering2020，6，4： | 2 |
| 3 | Effects of surface states over core-shell Ni@SiO_2 catalysts on catalytic partial oxidation of methane to synthesis gas显示文摘In the present work, core-shell Ni@Si O2 catalysts were investigated in order to evaluate the relevance of catalytic activity and surface states of Ni core as well as Ni nanoparticles size to catalytic partial oxidation of methane(POM). The catalysts were characterized by N2 adsorption,H2-TPR, XRD, TEM and XPS techniques. The catalytic performance of the core-shell catalysts was found to be dependent on the surface states of catalyst, which influenced the formation of products. It was considered that carbon dioxide formed on the oxidized nickel sites(Ni O)and carbon monoxide produced on the reduced sites(Ni). The surface states of active metal in the dynamic were influenced both by the size of Ni core and the porosity of silica shell. However, the catalytic activity would be debased when the size of Ni core was under a certain extent,which can be ascribed to the fact the carbon deposition increased with the increasing content of Ni O. The effects of surface states of Ni@Si O2 catalyst on the catalytic performance were discussed and the reaction pathway over Ni core encapsulated inside silica shell was proposed. | Chuanmin Ding Xiaofeng Gao Yulin Han Xishun Ma Junwen Wang Shibin Liu Kan Zhang | 2015 | Journal of Energy Chemistry2015，24，1： | 2 |
| 4 | Astrocyte reactivity in related brain regions in a mouse model of MPTP-induced Parkinson's disease显示文摘BACKGROUND:Severe injury to dopaminergic neuronal cell bodies and their axon terminals in the substantia nigra pars compacta(SNC) has been observed in both Parkinson's disease(PD) patients or in 1-methy-4-phenyl-1,2,3,6-tetrahydropyrindine(MPTP)-induced PD animal models, but only slight injury occurs in the adjacent ventral tegmental area(VTA).The mechanisms underlying this selective injury remain poorly understood. OBJECTIVE:To comparatively observe astrocyte reactivity in the SNC,caudate putamen(CPu), VTA,and frontal association cortex(FrA). DESIGN,TIME AND SETTING:A cellular and molecular biology,randomized,controlled experiment was performed at the Institute of Neurobiology,Department of Human Anatomy, Medical School of Nantong University,between December 2006 and September 2008. MATERIALS:A total of 80 healthy adult male C57BL/6 mice were included in this study.MPTP was purchased from Sigma,USA. METHODS:Mice were randomly divided into a model group(n=64) and a sham-operated group (n=16).PD was induced in the mice from the model group by intraperitoneal injection of 20 mg/kg MPTP,once every three hours,for a total of 4 times. MAIN OUTCOME MEASURES:Tyrosine hydroxylase(TH)-immunoreactive neurons and glial fibrillary acidic protein(GFAP)-immunoreactive astrocytes were examined by dual immunofluorescence labeling.GFAP-immunoreactive astrocytes in the CPu and FrA were determined by immunofluorescent staining.GFAP mRNA expression in the SNC,CPu,VTA,and FrA was detected using real-time polymerase chain reaction.TH protein levels in the TH-immunoreactive axon terminals of the CPu and FrA were detected by Western blotting. RESULTS:Numbers of TH-immunoreactive neurons in the SNC,and TH protein level in the CPu, markedly decreased(by approximately 68%) 1 day after MPTP injection,and gradually increased at 3 days.Simultaneously,astrocyte reactivity was strengthened,in particular at 7 days.However, after MPTP injection,decreases in the numbers of TH-immunoreactive neurons in the VTA,and TH protein levels in the FrA,were less apparent(approximately 15%).Also,no obvious astrocyte reactivity was observed. CONCLUSION:In a mouse model of PD,astrocyte reactivity was apparent in the SNC and CPu, but not the VTA or FrA.In addition,astrocyte reactivity was greater in regions where injury to dopaminergic neurons was more severe. | Zhijun Zhang Chunlin Xia Yulin Dong Guangming Lü Juan Liu Lin Ding Hengjian Ni | 2009 | Neural Regeneration Research2009，4，2： | 1 |
| 5 | The investi- gation on the workability of fibre cocktail reinforced self- compacting high performance concrete 显示文摘 | Ding Yining Liu Siguo Zhang Yulin | 2008 | Construction and Building Materials2008，22，7： | 1 |
| 6 | Rational design of a hollow porous structure for enhancing diffusion kinetics of K ions in edge-nitrogen doped carbon nanorods显示文摘The high electrical conductivity makes it possible for one-dimensional(1D)carbon materials to be used as the promising anodes for potassium ion batteries(PIBs),however,the sluggish diffusion kinetics caused by large-sized potassium ions(K^(+))limits their practical applications in energy storage systems.In this work,hollow carbon nanorods were rationally designed as a case to verify the superiority of 1D hollow structure to improve the diffusion kinetics of K^(+).Simultaneously,edge-N(pyridinic-N and pyrrolic-N)atoms were also introduced into 1D hollow carbon structure,which can provide ample active sites and defects in graphitic lattices to adsorb K^(+),providing extra capacitive storage capacity.As expected,the optimized edge-N doped hollow carbon nanorods(ENHCRs)exhibits a high reversible capacity of 544 mAh·g^(−1)at 0.1 A·g^(−1)after 200 cycles.Even at 5 A·g^(−1),it displays a long-term cycling stability with 255 mAh·g^(−1)over 10,000 cycles.The electrochemical measurements confirm that the hollow structure is favorable to improve the transfer kinetics of K^(+)during cycling.And the theoretical calculations demonstrate that edge-N doping can enhance the local electronegativity of graphitic lattices to adsorb much more K^(+),where edge-N doping synergizes with 1D hollow structure to achieve enhanced K^(+)-storage performances. | Ping Niu Yang Yang Zhiqiang Li Gaohui Ding Lingzhi Wei Ge Yao Helin Niu Yulin Min Fangcai Zheng Qianwang Chen | 2022 | Nano Research2022，15，9： | 1 |
| 7 | Effect of longitudinal lift distribution on sonic boom of a canard-wing-stabilator-body configuration显示文摘After the last flight of the Concorde in 2003,sonic boom has been one of the obstacles to the return of a supersonic transport aircraft to service.To reduce the sonic boom intensity to an acceptable level,it is of great significance to study the effect of lift distribution on far-field sonic boom,since lift is one of the most important contributors to an intense sonic boom.Existing studies on the longitudinal lift distribution used low-fidelity methods,such as Whitham theory,and in turn,only preliminary conclusions were obtained,such as that extending the lift distribution can reduce sonic boom.This paper uses a newly developed high-fidelity prediction method to quantitatively study the effect of longitudinal lift distribution on the sonic boom of a Canard-Wing-Stabilator-Body(CWSB)configuration.This high-fidelity prediction method combines near-feld CFD simulation with far-field propagation by solving the augmented Burgers equation.A multipole analysis method is employed for the extraction of near-field waveform in order to reduce computational cost.Seven configurations with the same total lift but different distributions are studied,and the quantitative relationship between the longitudinal lift distribution and far-field sonic boom intensity is investigated.It is observed that a small lift generated by the stabilator can prevent aft-stabilator and aft-fuselage shocks from merging,while the balanced lift generated by the canard and wing can effectively keep the corresponding shocks further apart,which is beneficial for reducing both the on-track and off-track sonic boom.In turn,the acoustic level perceived at the ground can be reduced by 5.9 PLdB on-track and 5.4 PLdB off-track,on average. | Liwen ZHANG Zhonghua HAN Jianling QIAO Wenping SONG Yulin DING Xuehe WANG | 2023 | Chinese Journal of Aeronautics2023，36，6： | 1 |
| 8 | Integrated representation of geospatial data,model,and knowledge for digital twin railway显示文摘The real-time accurate description of all spatial features of railway and their spatiotemporal relationships is a crucial factor in realizing comprehensive management and related decision-making within the entire life cycle of railways.Nevertheless,available spatiotemporal data models mainly use static historical sequence data,which are insufficient to support multi-source heterogeneous real-time sensed data;they lack a systematic depiction of the interactive relationships among multiple feature entities,and are limited to low-level descriptive analysis.Therefore,this study proposes a data-model-knowledge integrated representation data model for a digital twin railway,which explicitly describes the spatiotemporal,and interaction relationships among railway features through a conceptual knowledge graph.This study first analyzes the characteristics of railway features from above ground to underground,and then constructs a conceptual model to clearly describe the complex relationships among railway features.Secondly,a logical model is developed to illustrate the basic data structure.Thirdly,an ontology model is constructed as a basic framework for further deepening the domain knowledge graph.Finally,considering the prevention of landslides as an example,it demonstrates the abundant spatiotemporal relationships among railway related features.The results of this study bring more clear understanding of the complex interactive relationships of railway entities. | Hankan Li Qing Zhu Liguo Zhang Yulin Ding Yongxin Guo Haoyu Wu Qiang Wang Runfang Zhou Mingwei Liu Yan Zhou | 2022 | International Journal of Digital Earth2022，15，1： | 1 |
| 9 | Fibres for enhancing of the bond capacity between GFRP rebar and concrete 显示文摘 | DING Yining NING Xiliang ZHANG Yulin | 2014 | Construction and Building Materials2014，51，： | 1 |
| 10 | An integrated geospatial information service system for disaster management in China显示文摘The Chinese Government and citizens face enormous challenges of disaster management as widespread devastation,economic damages,and loss of human lives caused by increasing natural disasters.Disaster management requires a complicated iterative process that includes disaster monitoring,early detection,forecasting,loss assessment,and efficient analysis of disaster reduction.Each task typically involves the use of technologists and multiple geospatial information resources,including sensors,data sources,models,geo-tools,software packages,and computing resources.However,most existing disaster management systems operate in a typical passive data-centric mode,where resources cannot be fully utilized.This impediment is partially being addressed by the increasingly complex application requirements and the growing availability of diverse resources.In this paper,we summarize and analyze the practical problems experienced by the National Disaster Reduction Application System of China.To address the issues of data-centric,centralized,isolated solutions,we propose a novel Focusing Service Mechanism,which is capable of scheduling and allocating for optimum utilization of multiple resources,to dynamically generate collaborative and on-demand disaster information services.We also demonstrate the design and implementation of the Integrated Disaster Information Service System(IDISS).Through the service strategies of Virtualizing,Wrapping,and Integrating,disasterrelated resources are constructed into services in the IDISS.These services are dynamically aggregated into focusing service chains,for diverse disaster management tasks.Actual applications illustrate that the proposed service system can significantly improve the capability of disaster management in China. | Yulin Ding Yida Fan Zhiqiang Du Qing Zhu Wei Wang Sanchao Liu Hui Lin | 2015 | International Journal of Digital Earth2015，8，11： | 1 |
| 11 | A long non-coding RNA LncSync regulates mouse cardiomyocyte homeostasis and cardiac hypertrophy through coordination of miRNA actions显示文摘Dear Editor,Maintenance of cardiomyocyte(CM)homeostasis is essential for normal heart function.Long-term imbalance in heart homeostasis could elicit irreversible adaptive change in cell structure and function and tissue architecture,exemplified as cardiac hyper-trophy and fibrosis,and eventually develop into heart failure(Shiojima et al.,2005).Therefore,identifying new genes and path-ways regulating CM homeostasis may help better understand the cause of cardiac hypertrophy. | Rujin Huang Jinyang Liu Xi Chen Ying Zhi Shuangyuan Ding Jia Ming Yulin Li Yangming Wang Jie Na | 2023 | Protein & Cell2023，14，2： | 0 |
| 12 | Benzothiophene and benzosulfone fused pyrazino[2,3-g]quinoxaline:Synthesis and semiconducting properties显示文摘A novel air-stable n-type benzothiaphene endcapped azaarene(BTPQ) and its sulfonated derivative(BSPQ) were prepared via two pathways and characterized by NMR, UV–vis, fluorescence and cyclic voltammetry spectroscopy. Symmetrically introducing four nitrogen atoms into acenes, the semiconductor properties could be changed from p-type to n-type detected through the space charge limited current(SCLC) method. After sulfonation of BTPQ, BSPQ is with deeper frontier orbital energy levels and enhanced the electron mobility. | Fangwei Ding Debin Xia Xiping Ding Ruibin Deng Congwu Ge Yulin Yang Ruiqing Fan Kaifeng Lin Xike Gao | 2023 | Chinese Chemical Letters2023，34，2： | 0 |
| 13 | Versioned geoscientific workflow for the collaborative geosimulation of human-nature interactions-a case study of global change and human activities显示文摘Global change refers to changes in the relationship between humans and nature.It is desirable to actively integrate human social activities into the unified framework of global change so that their mutual relations and functional mechanisms can be understood.This complicated issue necessitates an appropriate method allowing domain experts to collaboratively contribute their knowledge to geoscientific research.Also,an efficient approach to optimize experimentation is of great importance.The reproducibility of research methods and results needs to be improved to boost the sharing of geographic knowledge and resources.This paper proposes a versioned geoscientific workflow and characterizes its full lifecycle using Virtual Geographic Environments,intending to facilitate and improve research related to the interactions between global change and human activities.The geoscientific workflow management is realized using the concept of version management,making geographic simulation methods and computational results easily reproducible and extendable.The sharing and reuse of geographic knowledge in various forms are archived through version management of geoscientific workflows.A versatile prototype system is implemented which enables the visual modeling of geoscientific workflows,the interactive optimization and collaborative evaluation of geoscientific workflows at runtime,the multi-dimensional dynamic visualization of geo-workflow outputs,and role-based access control for data security. | Yuting Chen Hui Lin Ling Xiao Qi Jing Lan You Yulin Ding Mingyuan Hu Adam Thomas Devlin | 2021 | International Journal of Digital Earth2021，14，4： | 0 |
| 14 | Commissioning Test of Cold Neutron Source with Hydrogen without Reactor Power in CARR显示文摘The single-phase liquid deuterium was adopted and used as the moderator of cold neutron in China Advanced Research Reactor(CARR).Liquid deuterium moderator go through in-pile device where heat exchanger and thermosiphon loop located and was cooled by the closed naturally cycling and helium interlining in cryogenic helium(about 19K)maintain a | LI Jianlong ZOU Ziquan ZHANG Shuai LI Xuehui Victor Mitiukhliae ZHEN Jianxiao DING Li WANG Yulin | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 15 | Trade Credit and Buyer Financing显示文摘This study investigates trade credit and early payment financing in a three-party supply chain consisting of a manufacturer,a capital-constrained distributor,and a retail platform.The manufacturer or the platform provides the financing service to the distributor.Two different leadership structures are investigated,namely,platform and manufacturer leadership Stackelberg game,where the platform or manufacturer first makes the decision,respectively.Under trade credit financing,the manufacturer and the whole supply chain face loss when the commission rate increases.However,under buyer financing,they benefit from the high commission rate.Under platform leadership,the distributor,the manufacturer,and the supply chain perform better with trade credit if and only if the commission rate is small or the production cost is high,while the platform always prefers buyer financing.Under manufacturer leadership,the distributor,manufacturer,and supply chain perform better with trade credit under low production cost and commission rate.The platform prefers trade credit when production cost is in the intermediate range.By further analyzing the case that both financing channels are available and the distributor decides which one to choose,we find that the financing services competition hurts only the platform's profits.And under certain conditions,trade credit and early payment can achieve the same performance for every supply chain member.These findings enhance our understanding of the supply chain risk allocation efficiency of trade credit and early payment financing under different leadership structures.Neither risk allocation form outperforms the other,and the relative efficiency depends on supply chain characteristics. | Weihua Zhou Yulin Hu Tiantian Lin Zhigang Ding | 2022 | Journal of Systems Science and Systems Engineering2022，31，3： | 0 |
| 16 | An adaptive LIC based geographic flow field visualization method by means of rotation distance显示文摘Geographic visualization is essential for explaining and describing spatiotemporal geographical processes in flow fields.However,due to multi-scale structures and irregular spatial distribution of vortices in complex geographic flow fields,existing two-dimensional visualization methods are susceptible to the effects of data accuracy and sampling resolution,resulting in incomplete and inaccurate vortex information.To address this,we propose an adaptive Line Integral Convolution(LIC)based geographic flow field visualization method by means of rotation distance.Our novel framework of rotation distance and its quantification allows for the effective identification and extraction of vortex features in flow fields effectively.We then improve the LIC algorithm using rotation distance by constructing high-frequency noise from it as input to the convolution,with the integration step size adjusted.This approach allows us to effectively distinguish between vortex and non-vortex fields and adaptively represent the details of vortex features in complex geographic flow fields.Our experimental results show that the proposed method leads to more accurate and effective visualization of the geographic flow fields. | Yulin Ding Daiyu Shang Tingchen Wu Qing Zhu Liguo Zhang Yongxin Guo | 2023 | International Journal of Digital Earth2023，16，1： | 0 |
| 17 | Potential impacts of climate and anthropogenic-induced changes on DOM dynamics among the major Chinese rivers显示文摘Dissolved organic matter (DOM) is closely linked to human activities in drainage basins and plays a crucial role in maintaining ecosystem functioning and reflecting environmental quality. However, the impacts of climate and anthropogenic-induced changes on DOM in riverine systems under increasingly warming conditions still need to be better understood, particularly at large regional scales. To address this knowledge gap, we analyzed a dataset containing 386 published measurements for nine major Chinese river systems, examining dissolved organic carbon (DOC) concentrations and optical properties of chromophoric DOM (CDOM) under diverse envi- ronmental conditions, including mean air temperature, precipitation, surface solar radiation, population density, and land use. Our findings indicate that riverine DOC concentrations are significantly higher in northern China (at ∼46.8%) than in the south. This disparity is primarily due to the high input of soil erosion-induced DOM from drying-affected lands (57.0%), farmland (49.1%), and forests in the north. The high temperate and strong hydrological conditions would lead to DOM degradation easily in the riverine system in the south of China. Our study highlights that various climatic and anthropogenic factors, such as agriculture, vegetation coverage, soil erosion, surface solar radiation, and precipitation, individually or in combination, can affect DOM dynamics in river systems. Therefore, considering alterations in DOM dynamics resulting from climate and environmental changes is crucial for carbon-neutral policies and sustainable river ecosystem assessments. | Si-Liang Li Hao Zhang Yuanbi Yi Yutong Zhang Yulin Qi Khan MG Mostofa Laodong Guo Ding He Pingqing Fu Cong-Qiang Liu | 2023 | Geography and Sustainability2023，4，4： | 0 |
| 18 | A Hf_(0.5)Zr_(0.5)O_(2)ferroelectric capacitor-based half-destructive read scheme for computing-in-memory显示文摘The emerging non-volatile memories(NVMs),including resistive random access memory(RRAM)[1],phase-change memory(PCM)[2],and ferroelectric random access memory(Fe RAM)[3],have broad application prospects owing to their non-volatility and near-zero static energy consumption.Compared to other NVMs,ferroelectric capacitors(Fe CAPs)ofer advantages in energy consumption and endurance.However,the destructive read operation of capacitors(e.g.,DRAMs and Fe CAPs)destroys the stored data. | Yulin ZHAO Yuan WANG Donglin ZHANG Zhongze HAN Qiao HU Xuanzhi LIU Qingting DING Jinhui CHENG Wenjun ZHANG Yue CAO Ruixi ZHOU Qing LUO Jianguo YANG Hangbing LV | 2023 | Science China(Information Sciences)2023，66，5： | 0 |
| 19 | ABE-induced PDGFD start codon silencing unveils new insights into the genetic architecture of sheep fat tails显示文摘Sheep is an important livestock species raised globally to produce meat,milk,wool,and other by-products.During the Neolithic Revolution,sheep were domesticated in the Fertile Crescent of Southwest Asia around 10,000 years ago(Chessa et al.,2009). | Peter Kalds Shuhong Huang Shiwei Zhou Siyuan Xi Yumeng Fang Yawei Gao Kexin Sun Chao Li Bei Cai Yao Liu Yige Ding Qifang Kou Tad Sonstegard Bjöm Petersen Stephen Kemp Baohua Ma Jian-Lin Han Yulin Chen Xiaolong Wang | 2023 | Journal of Genetics and Genomics2023，50，12： | 0 |
| 20 | Surgical Correction of Coronary Artery Ectasia Combining Congenital Coronary Artery Fistula显示文摘Background:Coronary artery ectasia(CAE)complicated with concomitant congenital coronary artery fistula(CCAF)is rare.This study characterizes the clinical characteristics of CAE combining CCAF,and reports a single-institution experience with surgical correction of CAE combining CCAF.Methods:A total of 24 symptomatic patients(8 males,median 52.5 years old)who underwent surgical correction of CAE combining CCAF in this center were reviewed.Based on the size of ectatic segment,the CAE were classified as a giant CAE(>20 mm,n=14)and a non-giant CAE(≤20 mm,n=10).Individualized surgical approaches were chosen.The patients were followed up for a median of 3.8 years.Results:The overwhelming majority of CAEs were solitary,and only 4.2%of CAEs were associated with multiple lesions.CAEs were predominantly located in the right coronary artery with predilection to women more than to men(2:1).95.8%of patients with the CCAF had single fistula defect.The right atrium was the most frequent drainage site(33.3%)followed by the left ventricle(25.0%).Surgical mortality was 4.2%.All 22 follow-up patients survived with recovery from symptoms and New York Heart Association(NYHA)functional class I-II.In 10 patients with non-giant CAEs undergoing closure of fistula alone,favorable in-hospital outcomes were recorded,but residual fistula(one patient)and acute inferior wall myocardial infarction related to intracoronary thrombosis(one patient)were observed at follow-up.In 11 patients with giant CAEs undergoing aneurysm resection plus distal bypass grafting at the time of closure of fistula,favorable in-hospital outcomes and encouraging midterm results were recorded.Additionally,in 3 patients with giant CAEs undergoing closure of fistula plus aneurysmal plication,adverse events occurred,including surgical death related to rupture of the ectatic segment(one patient),perioperative myocardial infarction caused by acute thromboembolism(one patient),nonfatal inferior wall myocardial infarction related to intracoronary thrombosis(one patient)at follow-up.Conclusion:Individualized surgical approaches based on the size and the location of ectatic coronary artery as well as fistula should be offered to symptomatic patients with CAE combining CCAF. | Yulin Wang Ye Yang Limin Xia Wenjun Ding Qiang Ji Chunsheng Wang | 2021 | Congenital Heart Disease2021，16，1： | 0 |
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