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| 1 | Simulation of Quasi-Linear Mesoscale Convective Systems in Northern China:Lightning Activities and Storm Structure显示文摘Two intense quasi-linear mesoscale convective systems(QLMCSs) in northern China were simulated using the WRF(Weather Research and Forecasting) model and the 3D-Var(three-dimensional variational) analysis system of the ARPS(Advanced Regional Prediction System) model.A new method in which the lightning density is calculated using both the precipitation and non-precipitation ice mass was developed to reveal the relationship between the lightning activities and QLMCS structures.Results indicate that,compared with calculating the results using two previous methods,the lightning density calculated using the new method presented in this study is in better accordance with observations.Based on the calculated lightning densities using the new method,it was found that most lightning activity was initiated on the right side and at the front of the QLMCSs,where the surface wind field converged intensely.The CAPE was much stronger ahead of the southeastward progressing QLMCS than to the back it,and their lightning events mainly occurred in regions with a large gradient of CAPE.Comparisons between lightning and non-lightning regions indicated that lightning regions featured more intense ascending motion than non-lightning regions;the vertical ranges of maximum reflectivity between lightning and non-lightning regions were very different;and the ice mixing ratio featured no significant differences between the lightning and non-lightning regions. | Wanli LI Xiushu QIE Shenming FU Debin SU Yonghai SHEN | 2016 | Advances in Atmospheric Sciences2016，33，1： | 7 |
| 2 | Low-frequency sea level variation and its correlation with climate events in the Pacific显示文摘Global mean sea level(GMSL) has not only significant secular trend and seasonal variations,but also inter-annual and decadal variations.This paper reconstructs the time series of GMSL variations between 1948 and 2007 by combining satellite altimeter measurements and tide gauge observations.Based on the time series,the acceleration of GMSL rise in the second half of 20th century is estimated to be 0.010±0.009 mm/a 2,and multi-scale low frequency sea level oscillations including decadal variations are detected,and the high-rate of GMSL rise during 1993-2003 is locate in the ascending phase of low frequency oscillation.Then,using the reconstructed GMSL time series after removing the secular trend from satellite altimetry and tide gauges measurements,it shows that low frequency signal of sea level variation has strong correlations with the index of El Ni o/Southern Oscillation(ENSO) and Pacific Decadal Oscillation(PDO).But in several time periods,they have large difference due to effects of both high frequency occurrence of El Ni o and La Ni a phenomenon and short term switch of PDO events. | JIN TaoYong LI JianCheng JIANG WeiPing CHU YongHai | 2012 | Chinese Science Bulletin2012，57，27： | 6 |
| 3 | Study on Compressive Properties of Z-pinned Laminates in RTD and Hygrothermal Environment显示文摘Compressive tests of [0] 12 and [90] 12 unidirectional laminates and [45/0/-45/90] 2S quasi-isotropic laminates are accomplished in both room-temperature and dry (RTD) and hygrothermal environment. And simulation studies on the compressive strength of Z-pinned laminates of [0] 12 and [45/0/-45/90] 2S are conducted by using finite element analysis (FEA). A microstructural unit cell for FEA is created to simulate a representative laminates unit with one pin. Within the unit cell, the first directions of the elements’ material coordinate systems are changed to simulate the fibres’ deflecting around the pin. The hygrothermal effect is simulated by the material properties’ adjustments which are determined by the compressive tests of non-pined laminates. The experimental results indicate that the percentage of reduction in the compressive modulus of Z-pinned laminates caused by Z-pin becomes smaller with the percentage of 0° fibres decreasing in the laminates; the compressive strength of quasi-isotropic laminates reduces and the percentage of the reduction in the compressive strength declines with Z-pin volume content increasing, and the moisture absorption ratio of the Z-pinned specimens is greater than that of the non-pinned specimens, because the cracks around Z-pin increase the moisture absorption. In addition, the simulations show that the deflection of fibres around Z-pin is the main factor for the reduction in the compressive strength of Z-pinned unidirectional laminates, the dilution of fibre volume content caused by resin-rich pocket is the principal factor for the decline in the compressive strength of Z-pinned quasi-istropic laminates, and the compressive strength of Z-pinned specimens in hygrothermal environment reduces as the result of superimposition of some factors, including the changes in material properties caused by hygrothermal environment, the deflection of fibres and the resin-rich pocket caused by Z-pin. | LI Chenghu YAN Ying WANG Ping QI Desheng WEN Yonghai | 2012 | Chinese Journal of Aeronautics2012，25，1： | 4 |
| 4 | Kinetic granular temperature and its measurement using speckle visibility spectroscopy显示文摘The occurrence of a mesoscopic scale in granular materials leads to a sharp increase in the number of interaction processes at both intra-and inter-scale levels.The mesoscopic scale is the main source of the complex macroscopic properties of granular materials.The quantification of mesoscopic disordered movements is often referred to as granular temperature.In this paper,we first introduce the physical meaning of the original granular temperature of a kinetic nature,Tk,and then briefly summarize the advances made over the past few decades.Our research group has focused on Tk measurement using speckle visibility spectroscopy.The principle of this technique and the instruments developed in our research group are briefly introduced.Our work shows great promise in the measurement of kinetic granular temperature.Finally,a summary of granular temperature and some recent developments in speckle visibility spectroscopy measurements are presented. | Hui Yang Yonghai Zhu Ran Li Qicheng Sun | 2020 | Particuology2020，18，1： | 4 |
| 5 | Analysis for remedial alternatives of unregulated municipal solid waste landfills leachate-contaminated groundwater显示文摘地下水流动和溶质运输模型为预报沾染物运输并且基于 unregulated 垃圾堆的案例研究估计补救选择的效果用视觉 Modflow 被开发在东方中国的污染 leachate 的地下水。结果证明那根砷羽毛是到达在八年,和砷羽毛的最长侧面、纵的距离以后在下游的农田抽很好是分别地到达 200 m 和 260 m。但是砷羽毛的区域是不显然从八年增加到十年和羽毛的高集中的区域是在 20 年以后传播到下游的河和农田区域;当垃圾堆磨擦了时被变硬,羽毛是不在八年以后到达下游的农田区域;当抽的井下游地在羽毛被安装,分泌物率是 200m ^ 时,啜 3 ^/d,羽毛将有效地被制止;为防漏的障碍,它可能有效地在一个程度时间范围以内保护敏感目标的地下水。要不是连续的点来源,羽毛仍然是防漏的障碍到圆;当排水阴沟的分泌物率是 170.26 m ^ 时,啜 3 ^/d,羽毛有效地被控制;有排水阴沟的联合地面变硬能在控制沾染物散开给最好的效果的全面方法,和分泌物率将被归结为 111.43 m ^ 啜 3 ^/d。因此,当 leachate 漏发生在 unregulated 垃圾堆时,有排水阴沟的全面补救其他的联合地面变硬将为阻止地下水污染被推荐[出版摘要] | Da AN Yonghai JIANG Beidou XI Zhifei MA Yu YANG Queping YANG Mingxiao LI Jinbao ZHANG Shunguo BAI Lei JIANG | 2013 | Frontiers of Earth Science2013，7，3： | 3 |
| 6 | Systematic centroid error compensation for the simple Gaussian PSF in an electronic star map simulator显示文摘Simulated star maps serve as convenient inputs for the test of a star sensor, whose standardability mostly depends on the centroid precision of the simulated star image, so it is necessary to accomplish systematic error compensation for the simple Gaussian PSF(or SPSF, in which PSF denotes point spread function). Firstly, the error mechanism of the SPSF is described, the reason of centroid deviations of the simulated star images based on SPSF lies in the unreasonable sampling positions(the centers of the covered pixels) of the Gaussian probability density function. Then in reference to the IPSF simulated star image spots regarded as ideal ones, and by means of normalization and numerical fitting, the pixel center offset function expressions are got, so the systematic centroid error compensation can be executed simply by substituting the pixel central position with the offset position in the SPSF. Finally, the centroid precision tests are conducted for the three big error cases of Gaussian radius r = 0.5, 0.6, 0.671 pixel, and the centroid accuracy with the compensated SPSF(when r = 0.5) is improved to 2.83 times that of the primitive SPSF, reaching a 0.008 pixel error, an equivalent level of the IPSF. Besides its simplicity, the compensated SPSF further increases both the shape similarity and the centroid precision of simulated star images, which helps to improve the image quality and the standardability of the outputs of an electronic star map simulator(ESS). | Wang Haiyong Wang Yonghai Li Zhifeng Song Zhenfei | 2014 | Chinese Journal of Aeronautics2014，27，4： | 3 |
| 7 | Three-dimensional electrochemical process for wastewater treatment: a general review 显示文摘 | ZHAO Chao JIANG Yonghai LI Yulin | 2013 | Chemical Engineering Journal2013，228，： | 1 |
| 8 | Determination of tetracycline in milk by using nucleotide/lanthanide coordination polymer-based ternary complex显示文摘 | Hongliang Tan Chanjiao Ma Yonghai Song Fugang Xu Shouhui Chen Li Wang | 2013 | Biosensors and Bioelectronics2013，，： | 1 |
| 9 | Noble-metal-based high-entropy-alloy nanoparticles for electrocatalysis显示文摘Since the two seminal papers were published independently in 2004, high-entropy-alloys(HEAs) have been applied to structural and functional materials due to the enhanced mechanical properties, thermal stability, and electrical conductivity. In recent years, HEA nanoparticles(HEA-NPs) were paid much attention to in the field of catalysis for the promoted catalytic activity. Furthermore, the various ratios among the metal components and tunable bulk and surface structures enable HEAs have big room to enhance the catalytic performance. Especially, noble-metal-based HEAs displayed significantly improved performance in electrocatalysis, where the ‘core effects’ were employed to explain the superior catalytic activity. However, it is insufficient to understand the essential mechanism or further guide the design of electrocatalysts. Structure–property relationship should be disclosed for the catalysis on HEA-NPs to accelerate the process of seeking high effective and efficient electrocatalysts. Therefore, we summarized the recent advances of noble-metal-based HEA-NPs applied to electrocatalysis, such as hydrogen evolution reaction, oxygen evolution reaction, oxygen reduction reaction, methanol oxidation reaction, ethanol oxidation reaction, formic acid oxidation reaction, hydrogen oxidation reaction, carbon dioxide reduction reaction and nitrogen reduction reaction. For each electrocatalytic reaction, the reaction mechanism and catalyst structure were presented, and then the structure–property relationship was elaborated. The review begins with the development, concept, four ‘core effect’ and synthesis methods of HEAs. Next,the electrocatalytic reactions on noble-metal-based HEA-NPs are summarized and discussed independently. Lastly, the main views and difficulties pertaining to structure–property relationship for HEAs are discussed. | Xianfeng Huang Guangxing Yang Shuang Li Hongjuan Wang Yonghai Cao Feng Peng Hao Yu | 2022 | Journal of Energy Chemistry2022，31，5： | 1 |
| 10 | Biquadratic finite volume element methods based on optimal stress points for parabolic problems显示文摘 | Changhua Yu Yonghai Li | 2011 | Journal of Computational and Applied Mathematics2011，236，6： | 1 |
| 11 | A novel hy- drogen peroxide sensor based on horseradish peroxidase immobilized in DNA films on a gold electrode显示文摘 | Yonghai Song Li Wang Chunbo Ren eta | 2006 | Sen- sors and Actuators B: Chemical2006，114，2： | 1 |
| 12 | A hydrogen peroxide sensor based on electrochemically roughened silverelectrodes显示文摘 | Li Wang Yonghai Song Wenping Lian | 2009 | Electrochimica Acta2009，54，： | 1 |
| 13 | Determination of tetracycline in milk by using nucleotide/lanthanide coordination polymer-based ternary complex显示文摘 | Hongliang Tan Chanjiao Ma Yonghai Song Fugang Xu Shouhui Chen Li Wang | 2013 | Biosensors and Bioelectronics2013，，： | 1 |
| 14 | Prediction of Gravity Anomalies Over the South China and Philippine Seas from Multi-satellite Altimeter Sea Surface Heights显示文摘2.5 ×上的严肃异例在一个非潮汐的系统的 2.5 弧分钟格子从多卫星测高法数据在华南和菲律宾的海上被导出。vertical 的偏转的诺思和东方部件在转线路地点,和 gridded 从导出高度表的海面高度被计算到 2.5 ×上 2.5 弧分钟决定格子。进 2.5 弧分钟分辨率当时是的 2.5 × 的vertical 和严肃异例 gridded 的偏转的 导出EGM96 的部件在一个移开恢复过程把全球重力势模型数量用作引用经由1D快速傅里叶变换技术实现反的 Vening Meinesz 公式从 gridded 在华南和菲律宾的海上预言严肃异例vertical 的偏转的导出高度表的部件。统计比较在之间导出高度表并且舷侧严肃异例证明有在他们之间的 5.7 mgals 的一个 root-mean-square 协议。 | Isaac Dadzie LI Jiancheng CHU Yonghai | 2008 | Geo-Spatial Information Science2008，11，3： | 1 |
| 15 | Influence of Load Capacity on Hydraulic Journal Support Deformation in Finite Ele- ment Calculation 显示文摘 | SHAO Junpeng ZHANG Yanqin LI Yonghai | 2008 | Journal of Central South University of Technology : English Edition2008，15，2： | 1 |
| 16 | Three-dimensional electrochemical process for wastewater treatment: A general review 显示文摘 | Zhang Chao Jiang Yonghai Li Yunlin | 2013 | Chemical Engineering Journal2013，228，： | 1 |
| 17 | Inducible IL-23p19 expression in human microglia via p38 MAPK and NF-κB signal pathways显示文摘 | Li Yonghai Chu Niansheng Hu Aihua | 2008 | Exp Mol Pathol2008，84，1： | 1 |
| 18 | Biquadratic finite volume element methods based on optimal stress points for parabolic problems显示文摘 | YU Changhua LI Yonghai | 2011 | Journal of Computational and Applied Mathematics2011，236，6： | 1 |
| 19 | Hybrid Simi- larity Measure for Case Retrieval in CBR and Its Application to Emergency Response Towards Gas Explosion 显示文摘 | Fan ZhiPing Li YongHai Wang XiaoHuan | 2014 | Expert Sys- tems with Applications2014，41，5： | 1 |
| 20 | Strengthening of a high strength Fe 85 Ni 15 alloy by tempering treatment显示文摘 | Yonghai Kang Licai Fu Jiqiang Ma Fei Li Zhuhui Qiao Jun Yang Qinling Bi Weimin Liu | 2013 | Materials Science & Engineering A2013，，： | 1 |
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