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8篇 您的检索式:作者名="ZHOU FengXi"
    题名 作者 年代 出处 被引量
1Propagation of plane wave in non-homogeneously saturated soils显示文摘Based on Biot's model for fluid-saturated media,which takes the inertial,fluid viscous,mechanical couplings,compressibility of grains and fluid into account,the dispersion equations of plane waves in non-homogeneously saturated soil are established by using reverberation ray matrix method(RRMM) with the aid of Helmholtz theorem.The non-homogeneity considered is a gradient variation in material properties with depth.The propagation characteristic of elastic waves in non-homogeneously saturated soil is analyzed by numerical example in this paper.The results show that the wave number and dissipation change little for two kinds of compression along the variation direction of the material properties,however,the non-homogeneity has significant effect on the wave number and dissipation of shear wave.ZHOU FengXi LAI YuanMing SONG RuiXia 2013Science China(Technological Sciences)2013,56,2:15
2Neuroprotective effects of Ginkgo biloba extract and GinkgoUde B against oxygen-glucose deprivation/reoxygenation and glucose injury in a new in vitro multicellular network model显示文摘Xiaohan Yang Tiezheng Zheng Hao Hong Nan Cai Xiaofeng Zhou Changkai Sun Liying Wu Shuhong Liu Yongqi Zhao Lingling Zhu Ming Fan Xuezhong Zhou Fengxie Jin 2018Frontiers of Medicine2018,12,3:12
3Exact solution for capillary interactions between two particles with fixed liquid volume显示文摘The capillary interactions,including the capillary force and capillary suction,between two unequal-sized particles with a fixed liquid volume are investigated.The capillary interaction model is used within the Young-Laplace framework.With the profile of the meridian of the liquid bridge,the capillary suction,and the liquid volume as state variables,the governing equations with two-fixed-point boundary are first derived using a variable substitution technique,in which the gravity effects are neglected.The capillary suction and geometry of the liquid bridge with a fixed volume are solved with a shooting method.In modeling the capillary force,the Gorge method is applied.The effects of various parameters including the distance between two particles,the ratio of particle radii,and the liquid-solid contact angles are discussed.Fengxi ZHOU Qiang MA 2016Applied Mathematics and Mechanics(English Edition)2016,37,12:5
4Introduction of a multicenter online database for non-metastatic breast cancer in China显示文摘Dear Editor,Breast cancer is now the most frequently diagnosed cancer and is the fifth leading cause of cancer-related death in Chinese women. Therefore, the burden of breast cancer in China is gradually increasing. According to figures released by the Chinese Cancer Center in 2018, the number of newly diagnostic breast cancer is about 278,900 cases, accounting for 16.51%of all women who were diagnosed with the first primary malignant tumors;and 66,000 cases of breast cancer died in 2014 (Chen et al., 2016).Yaping Yang Jieqiong Liu Min Peng Fengxi Su Xiaoming Xie Zhenzhen Liu Jundong Wu Wei Wei Dongxian Zhou Weiwen Li Ailing Zhang Guosen Su Weixiong Yang Jishang Chen Dekui Ma Yongguang Cai Kai Chen Liling Zhu Qiang Liu Erwei Song 2020Science China(Life Sciences)2020,63,9:4
5Induction of fibroblasts to neurons through adenoviral gene delivery显示文摘Fengxi Meng Siye Chen Qinglong Miao Kechun Zhou Qicheng Lao Xiaohui Zhang Wenyi Guo Jianwei Jiao 2012Cell Research2012,22,2:4
6Design,synthesis and in vitro cytotoxicity evaluation of 5-(2-carboxyethenyl)isatin derivatives as anticancer agents显示文摘Han Kailin Zhou Yao Liu Fengxi 2014Bioorganic & Medicinal Chemistry Letters2014,24,2:1
7Thermal–moisture dynamics and thermal stability of active layer in response to wet/dry conditions in the central region of the Qinghai–Tibet Plateau,China显示文摘The amount of rainfall varies unevenly in different regions of the Qinghai-Tibet Plateau, with some regions becoming wetter and others drier. Precipitation has an important impact on the process of surface energy balance and the energy-water transfer within soils. To clarify the thermal-moisture dynamics and thermal stability of the active layer in permafrost regions under wet/dry conditions, the verified water-vapour-heat coupling model was used. Changes in the surface energy balance, energy-water transfer within the soil, and thickness of the active layer were quantitatively analyzed. The results demonstrate that rainfall changes significantly affect the Bowen ratio, which in turn affects surface energy exchange. Under wet/dry conditions, there is a positive correlation between rainfall and liquid water flux under the hydraulic gradient;water vapour migration is the main form under the temperature gradient, which indicates that the influence of water vapour migration on thermalmoisture dynamics of the active layer cannot be neglected. Concurrently, regardless of wet or dry conditions,disturbance of the heat transport by conduction caused by rainfall is stronger than that of convection by liquid water. In addition, when rainfall decreases by 1.5 times(212 mm) and increases by 1.5 times(477 mm), the thickness of the active layer increases by 0.12 m and decreases by 0.21 m, respectively. The results show that dry conditions are not conducive to the preservation of frozen soil;however, wet conditions are conducive to the preservation of frozen soil, although there is a threshold value. When this threshold value is exceeded, rainfall is unfavourable for the development of frozen soil.MingLi Zhang ZhiXiong Zhou Zhi Wen FengXi Zhou Zhao Ma BingBing Lei 2023Research in Cold and Arid Regions2023,15,1:0
8Calculation of salt-frost heave of sulfate saline soil due to long-term freeze−thaw cycles显示文摘Based on salt-frost heave tests of sulfate saline soil under repeated freeze−thaw cycles,this paper discusses the mechanism of the salt-frost heave under long-term freeze−thaw cycles.The results show that the salt-frost heave can be restricted considerably by loads,and there is a critical load for the salt-frost heave cumulative effect.Under this load,peak values of salt-frost heave approach a constant,and the residual values become 0.There is no longer structure heave or cumulative effect of saline soil exposed to freeze−thaw cycles under the critical load.Taking cumulative effect into account in calculations of salt-frost heave,a salt-frost heave model under freeze−thaw cycles is developed.Tao Wen Sai Ying FengXi Zhou 2020Research in Cold and Arid Regions2020,12,5:0
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