4篇
您的检索式：作者名="Li Bingjing"
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| 1 | Image-based numerical study of three-dimensional meso-structure effects on damage and failure of heterogeneous coal-rock under dynamic impact loads显示文摘This paper proposes a numerical three-dimensional(3D)mesoscopic approach based on the discrete element method combined with X-ray computed tomography(XCT)images to characterize the dynamic impact behavior of heterogeneous coal-rock(HCR).The dynamic impact loading in three directions was modelled to investigate the effects of the 3D meso-structure on the failure patterns and fracture mechanism,with different impact velocities.The XCT image-based discrete element model of HCR was calibrated through appropriate standard uniaxial compression tests.Numerical simulations were carried out to investigate how the breakage behaviors are affected by different loading directions with different impact velocities.The loading direction,input energy,and spatial distribution of the mineral phase had a remarkable influence on the failure patterns and load-carrying capacities.The shape of the gangue phase and the approximate location of the gangue interfaces are key parameters to consider when investigating the failure patterns and fracture mechanism of heterogeneous rock materials.The damage and fracture tended to propagate from the surfaces to the HCR interior.The gangue phase area contacting the loading wall,growth direction of the strong gangue interfaces,and loading directions greatly influenced the failure patterns of the heterogeneous rock materials. | Kehong Zheng Bingjing Qiu Zhenyu Wang Xuefeng Li Jianping Li Kuidong Gao | 2020 | Particuology2020，18，4： | 1 |
| 2 | Deformation forecast of flexible material process by spline finite element method and application 显示文摘 | DENG Yaohua LI Bingjing CHEN Sicheng | 2013 | International Journal on Smart Sensing and Intelligent Systems2013，6，1： | 1 |
| 3 | Preparation and Application of Biomass-based Sprayable Hydrogels显示文摘Hydrogels have three-dimensional network structures that have been widely applied owing to their high water content,excellent biocompatibility,and physicochemical properties.Compared with conventional hydrogels,sprayable hydrogels exhibit excellent temporal and spatial controllability.Biomass materials offer easy accessibility,biocompatibility,biodegradability,and other physicochemical properties that are extensively used in the formation of sprayable hydrogels.In situ formed biomass-based sprayable hydrogels are realized by chemical or physical crosslinking.Rapid spray filming,in situ drug delivery,high permeability,and flexible portability enable biomass-based sprayable hydrogels to show great potential for topical drug delivery,wound healing,and other applications.This review describes in detail the status of research on the preparation and application of biomassbased sprayable hydrogels and suggests prospects for their future development. | Yujiao Tan Bingjing Cai Xiaoyun Li Xiaoying Wang | 2023 | Paper And Biomaterials2023，8，2： | 0 |
| 4 | Thickness Method for Measuring Hair Density of Rex Rabbit显示文摘[Objective] The paper was to characterize hair density by changes in hair thickness under certain pressure.[Method] The effects of weight of thickness tester and wafer area at the bottom of presser foot on measurement results were studied,and the optimal measuring weight and wafer diameter was determined.The measurement results of hair thickness under the above condition were compared with the results of manual counting.Meanwhile,the effects of hair length and hair fineness on hair density were analyzed.[Result] The hair density obtained by manual counting had consistent change trend with the hair thickness measured under certain conditions.If the length and fineness of hairs were introduced for modification,the correlation between hair thickness and hair density would be better.There were little changes in hair length and fineness of rex rabbit,and their effects on hair thickness could be ignored under general condition.[Conclusion] It is completely feasible to characterize hair density of rex rabbit by hair thickness under pressure. | Gao Haiqi Li Bingjing Liu Han Zhang Zongcai | 2018 | Animal Husbandry and Feed Science2018，10，2： | 0 |
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