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| 1 | Nonfatal Child Pedestrian Injury in Two Urban Cities of Guangdong Province,China:Results from a Cross-sectional Survey显示文摘Objective To describe the epidemiological characteristics of nonfatal child pedestrian injuries and provide information to help understand an important public-health problem.Methods This was a school-based,cross-sectional questionnaire survey.The sample (42 750 children) was obtained from two urban cities of Guangdong Province,China,using multi-stage randomized sampling.Information was collected by the respondents self-reporting in the classroom.Results The incidence rate of nonfatal child pedestrian injuries in the cities was 2.0%.Boys had a higher incidence rate (2.6%) than girls (1.4%).Compared to other children,those aged 10 years are at the highest risk.The primary places of occurrence were sidewalks,residential roads,and crosswalks.High-risk behavior of the children immediately prior to injury included mid-block crossings,playing on roads,and crossing on red lights.The major vehicles that caused pedestrian injuries were bicycles,car or vans,and motorcycles.Bruises,fractures,and injuries to the internal organs were the top three types of injuries.Almost 40% of victims were hospitalized,and nearly 30% of the victims suffered long-term disabilities.Conclusion This study shows that nonfatal child pedestrian injuries are a very serious public-health problem in the urban cities of Guangdong.Based on the epidemiological characteristics,prevention strategies and further research should be carried out to reduce the occurrence of injuries. | MA WenJun NIE ShaoPing XU HaoFeng XU YanJun XIE HuiYan ZHANG YuRun | 2011 | Biomedical and Environmental Sciences2011，24，4： | 4 |
| 2 | The Relationship between Melt Season Sea Ice over the Bering Sea and Summer Precipitation over Mid-Latitude East Asia显示文摘Independent datasets consistently indicate a significant correlation between the sea ice variability in the Bering Sea during melt season and the summer rainfall variability in the Lake Baikal area and Northeastern China.In this study,four sea ice datasets(HadISST1,HadISST2.2,ERA-Interim and NOAA/NSIDC)and two global precipitation datasets(CRU V4.01 and GPCP V2.3)are used to investigate co-variations between melt season(March−April−May−June,MAMJ)Bering Sea ice cover(BSIC)and summer(June−July−August,JJA)East Asian precipitation.All datasets demonstrate a significant correlation between the MAMJ BSIC and the JJA rainfall in Lake Baikal−Northeastern China(Baikal−NEC).Based on the reanalysis datasets and the numerical sensitivity experiments performed in this study using Community Atmospheric Model version 5(CAM5),a mechanism to understand how the MAMJ BSIC influences the JJA Baikal−NEC rainfall is suggested.More MAMJ BSIC triggers a wave train and causes a positive sea level pressure(SLP)anomaly over the North Atlantic during MAMJ.The high SLP anomaly,associated with an anti-cyclonic wind stress circulation anomaly,favors the appearance of sea surface temperature(SST)anomalies in a zonal dipole-pattern in the North Atlantic during summer.The dipole SST anomaly drives a zonally orientated wave train,which causes a high anomaly geopotential height at 500 hPa over the Sea of Japan.As a result,the mean East Asian trough moves westward and a low geopotential height anomaly occurs over Baikal−NEC.This prevailing regional low pressure anomaly together with enhanced moisture transport from the western North Pacific and convergence over Baikal−NEC,positively influences the increased rainfall in summer. | Yurun TIAN Yongqi GAO Dong GUO | 2021 | Advances in Atmospheric Sciences2021，38，6： | 4 |
| 3 | A CaS:Ce,Sm-based dosimeter for online dosimetry measurement显示文摘A film dosimeter based on optically stimulated luminescence (OSL) material of CaS:Ce,Sm was developed for online irradiation dosimetry measurement.The stimulation is provided by a laser with a wavelength of 980 nm,and the OSL luminescenceis collected by a photodiode.Using 60Co γ-rays,we investigated the dosimetry characteristic of the dosimeter at different dose rates and total doses.The real-time detection results showed that the OSL signals versus total ionizing dose exhibited a good linearity in a dose range of 0.1-185 Gy. | SUN Yurun CHEN Zhaoyang FAN Yanwei YAN Shiyou HE Chengfa | 2011 | Nuclear Science and Techniques2011，22，2： | 3 |
| 4 | Infection-responsive long-term antibacterial bone plates for open fracture therapy显示文摘The infections in open fracture induce high morbidity worldwide.Thus,developing efficient anti-infective orthopedic devices is of great significance.In this work,we designed a kind of infection-responsive long-term antibacterial bone plates.Through a facile and flexible volatilization method,a multi-aldehyde polysaccharide derivative,oxidized sodium alginate,was crosslinked with multi-amino compounds,gentamycin and gelatin,to fabricate a uniform coating on Ti bone plates via Schiff base reaction,which was followed by a secondary crosslinking process by glutaraldehyde.The double-crosslinked coating was stable under normal condition,and could responsively release gentamycin by the triggering of the acidic microenvironment caused by bacterial metabolism,owning to the pH-responsiveness of imine structure.The thickness of the coating was ranging from 22.0μm to 63.6μm.The coated bone plates(Ti-GOGs)showed infection-triggered antibacterial properties(>99%)and high biocompatibility.After being soaked for five months,it still possessed efficient antibacterial ability,showing its sustainable antibacterial performance.The in vivo anti-infection ability was demonstrated by an animal model of infection after fracture fixation(IAFF).At the early stage of IAFF,Ti-GOGs could inhibit the bacterial infection(>99%).Subsequently,Ti-GOGs could promote recovery of fracture of IAFF.This work provides a convenient and universal strategy for fabrication of various antibacterial orthopedic devices,which is promising to prevent and treat IAFF. | Lujiao Zhang Yurun Yang Yan-Hua Xiong Yu-Qing Zhao Zongpeng Xiu Hui-Min Ren Kai Zhang Shun Duan Ying Chen Fu-Jian Xu | 2023 | Bioactive Materials2023，，7： | 2 |
| 5 | Flow-restricted Etching Method on Isotropic Substrates and Its Mechanism显示文摘With the development of analytical instrumentation to minimization,integration and automation,the microfluidic chips,which are more integrated,complex and diversified,have been applied widely on the manufacturing of analytical instrumentation.However,the present photolithography-based microfabrication technology,which is only able to pattern microchannels with simple inside structures,can not follow the rapid development of requirements.For solving the problem,a fabrication method based on the restricting effect of laminar flow is proposed for the micro etching on isotropic substrates.Experiments were conducted inside glass-based microchannels,in which certain etchant was used to form complicated microstructures.The flow parameters' effects on the aspect ratio,side wall profile and etching rate were revealed by the experiments.The experimental results reveal that the topography of micro structures patterned with the restricted flow etching method is mainly determined by the flowrates of separator and etchant.The computational fluid dynamics(CFD) model on the interface between multiple streams was established for the etching process,and analysis on the causes of various micro topographies was conducted based on the CFD simulation results.The experimental data consisted with the simulation results very well.The investigation depicted in this paper indicate that the flow restricted etching method provides sufficient references for the research and understanding on the mass transport at the liquid-liquid surface in the microchannel and can be used to pattern complex micro structures with high aspect ratios,meantime,it greatly enriches the microfabrication technology for microfluidic chips. | XIE Haibo ZHENG Yi FAN Yurun FU Xin YANG Huayong | 2010 | Chinese Journal of Mechanical Engineering2010，23，5： | 1 |
| 6 | Sorption and diffusion of ethanoi vapor in polybutadiene/acrylonitrile,polybutadiene/styrene and polybutadiene based polyurethanes显示文摘 | Yurun Yang Yongmin Huang Dening Wang Honglai Liu Chunpu Hu | 2004 | European Polymer Journal2004，，40： | 1 |
| 7 | High-order finite element methods for steady viscoelastic flows 显示文摘 | Fan Yurun Crochet M J | 1995 | Non-Newton Fluid Mech1995，57，3： | 1 |
| 8 | Effect of Groove on the Behavior of Flow Between Hydro-viscous Drive Plates显示文摘 | Huang Jiahai Fan Yurun Qiu Minxiu | 2012 | Jour- nal of Central South University of Technology2012，19，： | 1 |
| 9 | 1064 nm InGaAsP multi-junction laser power converters显示文摘Laser photovoltaic devices converting 1064 nm light energy into electric energy present a promising prospect in wireless energy transmission due to the commercial availability of high power 1064 nm lasers with very small divergence. Besides their high conversion efficiency, a high output voltage is also expected in a laser energy transmission system. Meanwhile,1064 nm InGaAsP multi-junction laser power converters have been developed using p^+-InGaAs/n^+-InGaAs tunnel junctions to connect sub-cells in series to obtain a high output voltage. The triple-junction laser power converter structures are grown on p-type InP substrates by metal-organic chemical vapor deposition(MOCVD), and InGaAsP laser power converters are fabricated by conventional photovoltaic device processing. The room-temperature I–V measurements show that the 1 × 1 cm^2 triplejunction InGaAsP laser power converters demonstrate a conversion efficiency of 32.6% at a power density of 1.1 W/cm^2, with an open-circuit voltage of 2.16 V and a fill factor of 0.74. In this paper, the characteristics of the laser power converters are analyzed and ways to improve the conversion efficiency are discussed. | Jiajing Yin Yurun Sun Shuzhen Yu Yongming Zhao Rongwei Li Jianrong Dong | 2020 | Journal of Semiconductors2020，41，6： | 1 |
| 10 | Stress boundary layers in the viscoelastic flow past a cylinder in a channel:limiting solutions显示文摘The flow past a cylinder in a channel with the aspect ratio of 2: 1 for the upper convected Maxwell (UCM) fluid and the Oldroyd-B fluid with the viscosity ratio of 0.59is studied by using the Galerkin/Least-square finite element method and a p-adaptive refinement algorithm. A posteriori error estimation indicates that the stress-gradient error dominates the total error. As the Deborah number, De, approaches 0.8 for the UCM fluid and 0.9 for the Oldroyd-B fluid, strong stress boundary layers near the rear stagnation point are forming, which are characterized by jumps of the stress-profiles on the cylinder wall and plane of symmetry, huge stress gradients and rapid decay of the gradients across narrow thicknesses. The origin of the huge stress-gradients can be traced to the purely elongational flow behind the rear stagnation point, where the position at which the elongation rate is of 1/2De approaches the rear stagnation point as the Deborah number approaches the critical values. These observations imply that the cylinder problem for the UCM and Oldroyd-B fluids may have physical limiting Deborah numbers of 0.8 and 0.9, respectively. | Yurun Fan Huayong Yang Roger I. Tanner | 2005 | Acta Mechanica Sinica2005，21，4： | 1 |
| 11 | Experimental study of vertical and batter pile groups in saturated sand using a centrifuge shaking table显示文摘To study the dynamic response of vertical and batter pile groups in saturated sand,dynamic tests of these pile groups in saturated sand were carried out using the ZJU400 geotechnical centrifuge at Zhejiang University.The following results were obtained.(1)As the motion intensity increased,the peak acceleration in soil layers at different depths significantly decreased,indicating that the soil stiffness was significantly reduced.(2)During the motion process,the instantaneous bending moment of the vertical and batter pile groups at different depths changed continuously,which had a strong relationship with the saturated sand liquefaction.In the process of sand liquefaction,the residual bending moment generated by the batter pile was more obvious than that of the vertical pile.(3)With the liquefaction of the saturated sand,the distribution of the maximum bending moment of the vertical pile group changed,and the bending moment near the pile cap of the vertical and batter pile groups was always large.(4)In certain cases,the horizontal acceleration and dynamic displacement of the vertical pile cap were amplified.When the motion intensity was large,residual displacement of the batter pile cap occurred. | Zhang Jian Li Yurun Yan Zhixiao Huang Da Rong Xian Liang Yan | 2022 | Earthquake Engineering and Engineering Vibration2022，21，1： | 1 |
| 12 | Time-dependent viscoelastic behavior of an LDPE melt显示文摘二个微分组成的方程,即 Giesekus 模型和 Johnson Segalman 模型这里被雇用预言时间依赖者 LDPE 的粘弹性的行为融化在 thixotropy 环实验和步砍率实验。多重松驰模式被采用,并且过去常在二个模型描述非线性的粘弹性的参数被适合砍变瘦粘性获得。那些上的预言短暂砍由二个模型的特征在对我们的以前的实验的质的同意被发现。Johnson Segalman 模型在 thixotropy 环和步预言摆动行为砍评估实验,而 Giesekus 模型不做。两个模型更高预言砍在砍的长时间的情况中比试验性的数据强调,暗示两个模型不能完全描绘时间依赖者砍 melt 在的应力高砍率。 | Shuxin Huang Chuanjing Lu Yurun Fan | 2006 | Acta Mechanica Sinica2006，22，3： | 1 |
| 13 | Rheological scaling and modeling of shear-enhanced crystallization rate of polypropylene显示文摘 | Qing Chen Yurun Fan Qiang Zheng | 2006 | Rheologica Acta2006，，2： | 1 |
| 14 | Bioinspired Functional Surfaces for Medical Devices显示文摘Medical devices are a major component of precision medicine and play a key role in medical treatment,particularly with the rapid development of minimally invasive surgery and wearable devices.Their tissue contact properties strongly affect device performance and patient health(e.g.,heat coagulation and slipperiness on surgical graspers).However,the design and optimization of these device surfaces are still indistinct and have no supporting principles.Under such conditions,natural surfaces with various unique functions can provide solutions.This review summarizes the current progress in natural functional surfaces for medical devices,including ultra-slipperiness and strong wet attachment.The underlying mechanisms of these surfaces are attributed to their coupling effects and featured micronano structures.Depending on various medical requirements,adaptable designs and fabrication methods have been developed.Additionally,various medical device surfaces have been validated to achieve enhanced contact properties.Based on these studies,a more promising future for medical devices can be achieved for enhanced precision medicine and human health. | Liwen Zhang Guang Liu Yurun Guo Yan Wang Deyuan Zhang Huawei Chen | 2022 | Chinese Journal of Mechanical Engineering2022，35，3： | 1 |
| 15 | High-order finite element methods for steady viscoelasticflows显示文摘 | Fan yurun Crochet M J | 1995 | Non-Newton fluid mech1995，57，3： | 1 |
| 16 | Characterizations of high-voltage vertically-stacked GaAs laser power converter显示文摘Six-junction vertically-stacked Ga As laser power converters(LPCs) with n^+-Ga As/p^+-Al0.37 Ga0.63 As tunnel junctions have been designed and grown by metal-organic chemical vapor deposition for converting the power of 808 nm lasers. The LPC chips are characterized by measuring current–voltage(I–V) characteristics under 808 nm laser illumination, and a maximum conversion efficiency ηc of 53.1% is obtained for LPCs with an aperture diameter of 2 mm at an input laser power of 0.5 W. In addition, the characteristics of the LPCs are analyzed by a standard equivalent-circuit model, and the reverse saturation current, ideality factor, series resistance and shunt resistance are extracted by fitting of the I–V curves. | Jie Huang Yurun Sun Yongming Zhao Shuzhen Yu Kuilong Li Jianrong Dong Jiping Xue Chi Xue Yang Ye | 2018 | Journal of Semiconductors2018，39，9： | 1 |
| 17 | Gas Permeability and Free Volume Hole Properties of Interpenetrating Polymer Network Studied by Positrons显示文摘A series of polyurethane/epoxy resin interpenetrating polymer networks (PU/ER IPN) were studied by positron annihilation lifetime spectroscopy (PALS). The effects of epoxy resin type and content on the free volume properties in IPN were investigated. We found that in PU/ER IPN, the free volume hole size and fractional free volume showed a negative deviation due to closer segmental chain packing through some chemical bonding between PU and epoxy resin. Direct relationship between the gas permeability and the free volume has been established based on the free volume theory. Experimental results revealed that the free volume plays an important role in determining the gas diffusion and permeability. | QI Ning GONG Wei WANG Zhifen WANG Bo YANG Yurun HU Chunpu | 2007 | Wuhan University Journal of Natural Sciences2007，12，2： | 0 |
| 18 | Modified room temperature solid-state synthesis of yttria-stabilized zirconia(YSZ) nano-powders for solid oxide fuel cells显示文摘High-performance solid oxide fuel cell(SOFC) is in urgent need of high-quality electrolyte powders with high reactivity and chemical uniformity.Here,8 mol% Y_(2)O_(3) doped ZrO_(2)(YSZ) nano-powders were synthesized by an improved solid-state reaction method at ambient temperature,and were applied to the fabrication of SOFC electrolytes.YSZ nano-powders show average grain sizes of ^(2)0 nm and high dispersibility,which is comparable with or even better than some other chemical methods.Benefitting from their high reactivity,dense YSZ electrolytes(relative density of 97.9%) can be obtained at a relatively low sintering temperature of 1400℃.The optimized electrical conductivity reaches up to a high value of0.034 S/cm at 800 0C in air.The anode supported single cell with the construction of Ni-YSZ/YSZ/Sm_(0.2)Ce_(0.8)O_(2-δ)(SDC)/La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3-δ)(LSCF) exhibits the peak power density of 0.827 W/cm^(2) at800℃ while taking wet H_(2) as fuels and ambient air as oxidants. | Xiaoqian Xu Yurun Feng Zhaoyu Zhong Xue Guo Zhenhao Zhang Jiao Li Shikai Zhao Shigang Wu Haibin Sun | 2023 | Journal of Rare Earths2023，41，9： | 0 |
| 19 | Extraction of Flavonoids from Leaves of Coix lacryma-jobi L.显示文摘[Objectives] To extract the flavonoids from leaves of Coix lacryma-jobi L. [Methods] Ethanol extraction method was adopted,spectrophotometry was used,and single factor experiment and orthogonal experiment were carried out to study the effects of ethanol percentage,extraction temperature,solid-to-liquid ratio and extraction time on the extraction of total flavonoids from leaves of C. lacryma-jobi L.[Results] The order of 4 factors influencing the extraction of flavonoids from leaves of C. lacryma-jobi L. was: solid-to-liquid ratio > extraction time > ethanol percentage > extraction temperature. When the extraction temperature was 70℃,the extraction time was 1. 5 h and the solid-liquid ratio was 1: 10,the ethanol percentage was 60%,the extraction effect was the best,extraction of flavonoids was 0. 107 5 mg/m L.[Conclusions] This study is expected to provide a theoretical basis for further development and utilization of C. lacryma-jobi L. | Xiaoxiong FENG Yurun LIANG Aiyue LUO Jiandan NONG Shaomei MO Yan NING Suoyi HUANG | 2018 | Medicinal Plant2018，9，1： | 0 |
| 20 | Dynamic Modeling and Sensitivity Analysis for an MEA-Based CO_(2) Capture Absorber显示文摘The absorber is the key unit in the post-combustion monoethanolamine(MEA)-based carbon dioxide(CO_(2))capture process.A rate-based dynamic model for the absorber is developed and validated using steady-state experimental data reported in open literature.Sensitivity analysis is performed with respect to important model parameters associated with the reaction,mass transport and phy-sical property relationships.Then,a singular value decomposition(SVD)-based subspace parameter estimation method is proposed to improve the model accu-racy.Finally,dynamic simulations are carried out to investigate the effects of the feed rate of lean MEA solution and the flue inlet conditions.Simulation results indicate that the established dynamic model can reasonably reflect the physical behavior of the absorber.Some new insights are gained from the simulation results. | Hongwei Guan Lingjian Ye Yurun Wang Feifan Shen Yuchen He | 2023 | Intelligent Automation & Soft Computing2023，，6： | 0 |
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