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| 1 | Voussoir beam model for lower strong roof strata movement in longwall mining - Case study显示文摘The paper presents the influence of varying immediate roof thickness on the lower strong roof strata movement and failure pattern in longwall coal mining with large mining height. The investigation is based on 58 geological drill holes and hydraulic shield pressure measurements around the longwall Panel 42105 of the Buertai Mine in Inner Mongolia Autonomous Region, China. The longwall Panel 42105 is characterized by relatively soft immediate roof strata of varying thickness superposed by strong strata,herein defined as lower strong roof. A voussoir beam model is adopted to interpret the structural movement of the lower strong roof strata and shield pressure measurements. It is shown that when the immediate roof is relatively thick, the broken overlying lower strong roof tends to form a stable voussoir beam with previously broken layer, thus not exerting high pressure on the hydraulic shield and working face. When the immediate roof is relatively thin, the broken overlying lower strong roof tends to behave as a cantilever beam, thus exerting higher pressure on the hydraulic shield and working face. Comparison of model predictions with measured time-weighted average shield pressure(TWAP) shows good agreement. | Chuang Liu Huamin Li Hani Mitri Dongjie Jiang Huigui Li Junfa Feng | 2017 | Journal of Rock Mechanics and Geotechnical Engineering2017，9，6： | 5 |
| 2 | Functional delivery vehicle of organic nanoparticles in inorganic crystals显示文摘Encapsulation of bioactive substances for extended shelf life and controlled,targeted release is critical for their applications in food and drug delivery.Here,a new method has been developed to encapsulate bioactive molecules in the crystal composites,showing greatly enhanced stability and unique pHtriggered response.Chlorophyll,a model bioactive,is first loaded in shellac nanoparticles via coprecipitation with a high encapsulation efficiency,and then the chlorophyll-loaded nanoparticles are incorporated into calcite crystals grown from a gel media containing the nanoparticles.Under the protection of shellac nanoparticles and calcite crystals,chlorophyll shows excellent stability even under light.Encapsulated chlorophyll could only be released by first dissolving the calcite crystals under acidic condition and then dissolving the shellac nanoparticles under alkaline condition.The unique pHtriggered release mimics the pH change from acidic in the stomach to alkaline in the intestine and is thus well suited for controlled,targeted intestinal release.This work suggests that the crystal composites are an ideal delivery vehicle for the functional design of bioactive molecules. | Linlin Kong Xinyi Jin Dapeng Hu Leyun Feng Dong Chen Hanying Li | 2019 | Chinese Chemical Letters2019，30，12： | 2 |
| 3 | Reconstruction of pattern images from scanning electron microscope images显示文摘 | Feng Hanying Ye Jtm Fabian R | 2005 | Journal of Vacuum Science and Technology2005，23，6： | 1 |
| 4 | Triple symmetri - c positive solutions for multipoint boundary value problems with one dimensional p - Laplacian 显示文摘 | Feng Hanying Ge Weigao | 2008 | Mathematical and Computer Modelling2008，47，12： | 1 |
| 5 | PERSISTENCE AND STABILITY IN A RATIO-DEPENDENT FOOD-CHAIN SYSTEM WITH TIME DELAYS显示文摘A delayed three-species ratio-dependent predator-prey food-chain model without dominating instantaneous negative feedback is investigated. It is shown that the system is permanent under some appropriate conditions,and sufficient conditions are obtained for the local asymptotic stability of a positive equilibrium of the system. | Xu Rui Feng Hanying Yang Pinghua Wang ZhiqiangDept. of Math.,Mechanical Engineering College,Shijiazhuang 050003. | 2002 | Applied Mathematics(A Journal of Chinese Universities)2002，17，1： | 1 |
| 6 | Triple symmetric positive solutions for multipoint boundary boundary-value problem with one-dimensional p-Laplacian显示文摘 | FENG HANYING GE WEIGAO | 2008 | Mathematical and Computer Modelling2008，47，： | 1 |
| 7 | Global asymptotic stability of periodic solution in N-species competition system with time delays显示文摘 | Yang Pinghua Xu Rui Feng Hanying | 1999 | Nnn of Diff Eqs1999，，14： | 1 |
| 8 | Angledependent diffraction efficiency in a thickphotorefractive hologram 显示文摘 | Hanying Zhou Feng zhao Francis T S Yu | 1995 | Applied Optics1995，，4： | 1 |
| 9 | A symmetric solution of a multipoint boundary value problem with one-dimensional p-Laplacian at resonance显示文摘 | Hanying Feng Hairong Lian Weigao Ge | 2008 | Nonlinear Analysis2008，69，11： | 1 |
| 10 | One-step signal amplified lateral flow strip biosensor for ultrasensitive and on-site detection of bisphenol A (BPA) in aqueous samples显示文摘 | Zhanlong Mei Wei Qu Yi Deng Huaqin Chu Jinxuan Cao Feng Xue Lei Zheng Hani Said El-Nezamic Yucheng Wu Wei Chen | 2013 | Biosensors and Bioelectronics2013，，： | 1 |
| 11 | Existence of three positive solutions for m-point boundary-value problems with one-dimen- sional p-Laplacian显示文摘 | FENG Hanying GE Weigao | 2008 | Nonlinear Analysis2008，68，： | 1 |
| 12 | A new fast multiphase image segmentation algorithm based on nonconvex regularizer 显示文摘 | HanY Wang W W Feng X C | 2012 | Pattern Recognition2012，45，1： | 1 |
| 13 | Triple symmetric positive solutions for multipoint boundary-value problems with one-dimensional p-Laplaeian显示文摘 | FENG Hanying GE Weigao | 2008 | Mathematical and Computer Modelling2008，47，12： | 1 |
| 14 | The existence of symmetric positive solutions for some nonlinear equation systems显示文摘 | Dehong Ji Hanying Feng Weigao Ge | 2008 | Applied Mathematics and Computation2008，197，： | 1 |
| 15 | Persistence and stability in a Delayed Ratio-Dependent Ecological System with one predator and Two preys显示文摘 | Xu Rui Yang Pinghua Feng Hanying Wang Zhiqiang | 2002 | Journal of Biomathematics2002，17，2： | 1 |
| 16 | Global asymptotic stability of periodic solution in N-species competition system with time delays显示文摘 | Yang Pinghua Xu Rui Feng Hanying | 1999 | Nnnof Diff Eqs1999，，14： | 1 |
| 17 | Existence of positions for m-point boundary-value problem with one-dimensional p-Laplacian显示文摘 | FENG Hanying GE Weigao | 2008 | Nonlinear Anal2008，68，： | 1 |
| 18 | Persistence and stability in a delayed ratio-dependent ecological system with one predator and two preys 显示文摘 | Xu Rui Yang Pinghua Feng Hanying | 2002 | Journal of Biomathematics2002，17，2： | 1 |
| 19 | Existence and uniqueness of solutions for a fourth-order boundary value problem显示文摘 | FENG HANYING JI DEHONG GE WEIGAO | 2009 | Nonlinear Analysis2009，70，10： | 1 |
| 20 | Triple positive solutions for a class of m -point dynamic equations on time scales with p -Laplacian显示文摘 | Meiqiang Feng Hanying Feng Xuemei Zhang Weigao Ge | 2008 | Mathematical and Computer Modelling2008，，7： | 1 |
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