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| 1 | Static behavior and theoretical model of stud shear connectors显示文摘 | Xue Weichen Ding Min Wang Hua | 2008 | Journal of Bridge Engineering2008，13，62： | 1 |
| 2 | Long-term behavior of prestressed composite beams at service loads for one year 显示文摘 | Xue Weichen Ding Min He Chi Li Jie | 2008 | ASCE Journal of Structural Engineering2008，134，6： | 1 |
| 3 | Static behavior and theoretical model of stud shear connectors显示文摘 | XUE Weichen DING Min WANG Hua | 2008 | Journal of Bridge Engineering2008，13，6： | 1 |
| 4 | Static behavior and theoretical model of stud shear connectors显示文摘 | XUE Weichen DING Min WANG Hua | 2008 | Journal of Bridge Engineering ASCE2008，，： | 1 |
| 5 | Transplantation of urokinase‐type plasminogen activator gene‐modified bone marrow‐derived liver stem cells reduces liver fibrosis in rats显示文摘 | ChaoSun Ding‐GuoLi Yuan‐WenChen Ying‐WeiChen Bao‐CanWang Qiao‐LingSun Han‐MingLu | 2008 | Gene Med2008，，8： | 1 |
| 6 | Impacts of Atmospheric Boundary Layer Vertical Structure on Haze Pollution Observed by Tethered Balloon and Lidar显示文摘In this paper, the characteristics of the atmospheric boundary layer(ABL) vertical structure over the North China Plain(NCP) during a comprehensive observation experiment conducted during 15–21 December 2018 were investigated. Observational data were obtained with a large tethered balloon, Doppler wind lidar, and ground-level instruments. The maximum concentration of PM_(2.5) exceeded 200 μg m^(-3), and the ratio of PM_(2.5)/PM_(10) was approximately 0.4(its maxi-mum was approximately 0.8) during the whole observation period, indicating the explosive growth of dominant fine-mode aerosols in the winter heating season. Elevated concentrations of pollutants decreased the solar irradiance received by the ground, resulting in lower temperature at ground level. Our results illustrate three distinct types of vertical profiles: Type 1(convective state)—the concentration of PM_(2.5) decreased nearly linearly with increase of the height below approximately 600 m;Type 2(stable state)—the PM_(2.5) concentration sharply decreased from the ground to approximately 200 m;and Type 3(multilayer structure)—some pollutants were suspended aloft in the upper air layer. Diurnal evolution of the vertical profiles of PM_(2.5) and their relationship with the changes in meteorological factors were identified. From daytime to nighttime, the vertical profiles evolved from Type 1 to Type 2 or Type 3. All the 33 vertical PM_(2.5) profiles that we obtained showed a strong relationship with elements of the ABL structure, such as the distributions of winds, the inversion layer, and turbulence activities. A light-wind layer and weak turbulence activity, especially within the inversion layer, contributed greatly to the accumulation of pollutants.Vertical PM_(2.5) concentration patterns were also greatly affected by local ground-level emission sources and regional transport processes. | Haijiong SUN Yu SHI Lei LIU Weichen DING Zhe ZHANG Fei HU | 2021 | Journal of Meteorological Research2021，35，1： | 1 |
| 7 | Vitreous Humor:A Review of Biochemical Constituents in Postmortem Interval Estimation显示文摘Postmortem changes in the biochemical constituents of the vitreous humor have been widely used to estimate the postmortem interval(PMI)over the past several decades.However,few reviews have summarized the relationship between the postmortem vitreous biochemical constituents and time of death.Herein,the relationship between PMI and single biochemical components,including vitreous potassium,hypoxanthine,and amino acids,as well as comparisons of each statistical parameter in the formula,is summarized.We also discuss other compounds such as urea and uric acid,which have no direct relationship with PMI.Utility of multiple constituent simultaneous analysis for estimating PMI is being increasingly investigated.The promising idea of using simultaneous analysis of multiple constituents to determine PMI is proposed as a future research direction. | Weichen Li Yunfeng Chang Zijia Cheng Jiang Ling Leiming Han Xingmei Li Yanjun Ding | 2018 | Journal of Forensic Science and Medicine2018，4，2： | 0 |
| 8 | Different Turbulent Regimes and Vertical Turbulence Structures of the Urban Nocturnal Stable Boundary Layer显示文摘Turbulence in the nocturnal boundary layer(NBL)is still not well characterized,especially over complex underlying surfaces.Herein,gradient tower data and eddy covariance data collected by the Beijing 325-m tower were used to better understand the differentiating characteristics of turbulence regimes and vertical turbulence structure of urban the NBL.As for heights above the urban canopy layer(UCL),the relationship between turbulence velocity scale(VTKE)and wind speed(V)was consistent with the“HOckey-Stick”(HOST)theory proposed for a relatively flat area.Four regimes have been identified according to urban nocturnal stable boundary layer.Regime 1 occurs where local shear plays a leading role for weak turbulence under the constraint that the wind speed VVT and is mainly driven by bulk shear.Regime 3 is identified by the existence of moderate turbulence when upside-down turbulence sporadic bursts occur in the presence of otherwise weak turbulence.Regime 4 is identified as buoyancy turbulence,when V>VT,and the turbulence regime is affected by a combination of local wind shear,bulk shear and buoyancy turbulence.The turbulence activities demonstrated a weak thermal stratification dependency in regime 1,for which within the UCL,the turbulence intensity was strongly affected by local wind shear when V | Yu SHI Qingcun ZENG Fei HU Weichen DING Zhe ZHANG Kang ZHANG Lei LIU | 2023 | Advances in Atmospheric Sciences2023，40，6： | 0 |
| 9 | Achievable secrecy rate of bit-interleaved coded modulation schemes显示文摘We study the impact of various modulation mapping strategies and signal constellation shapes on the secrecy rates achievable with bit-interleaved coded modulation (BICM) schemes. Transmission over an ergodic Rayleigh fading channel is assumed throughout this work. Various constellations and mapping techniques are considered in this work to maximize the capacity difference between the main channel and the eavesdropper channel, rather than to optimize the capacity of both channels. We show that in terms of achievable secrecy rate, Gray and Quasi-Gray mappings only perform well at low SNR but outperformed by other mapping techniques when SNR increases. The proper design of signal mapping can significantly enhance the achievable secrecy rate in BICM schemes. It is indicated that the key parameter to the secrecy rate of a BICM system is the distance spectrum of Euclidean distances for mappings. | Weichen XIANG Stéphane Le Goff Zhiguo DING | 2012 | Journal of Modern Transportation2012，20，4： | 0 |
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