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| 1 | Submarine Landslides on the North Continental Slope of the South China Sea显示文摘Recent and paleo-submarine landslides are widely distributed within strata in deep-water areas along continental slopes, uplifts, and carbonate platforms on the north continental margin of the South China Sea(SCS). In this paper, high-resolution 3D seismic data and multibeam data based on seismic sedimentology and geomorphology are employed to assist in identifying submarine landslides. In addition, deposition models are proposed that are based on specific geological structures and features, and which illustrate the local stress field over entire submarine landslides in deep-water areas of the SCS. The SCS is one of the largest fluvial sediment sinks in enclosed or semi-enclosed marginal seas worldwide. It therefore provides a set of preconditions for the formation of submarine landslides, including rapid sediment accumulation, formation of gas hydrates, and fluid overpressure. A new concept involving temporal and spatial analyses is tested to construct a relationship between submarine landslides and different time scale trigger mechanisms, and three mechanisms are discussed in the context of spatial scale and temporal frequency: evolution of slope gradient and overpressure, global environmental changes, and tectonic events. Submarine landslides that are triggered by tectonic events are the largest but occur less frequently, while submarine landslides triggered by the combination of slope gradient and overpressure evolution are the smallest but most frequently occurring events. In summary, analysis shows that the formation of submarine landslides is a complex process involving the operation of different factors on various time scales. | WANG Weiwei WANG Dawei WU Shiguo VOKER David ZENG Hongliu CAI Guanqiang LI Qingping | 2018 | Journal of Ocean University of China2018，17，1： | 11 |
| 2 | Research of a novel biodegradable surgical staple made of high purity magnesium显示文摘Surgical staples made of pure titanium and titanium alloys are widely used in gastrointestinal anastomosis.However the Ti staple cannot be absorbed in human body and produce artifacts on computed tomography(CT)and other imaging examination,and cause the risk of incorrect diagnosis.The bioabsorbable staple made from polymers that can degrade in human body environment,is an alternative.In the present study,biodegradable high purity magnesium staples were developed for gastric anastomosis.U-shape staples with two different interior angles,namely original 90and modified 100,were designed.Finite element analysis(FEA)showed that the residual stress concentrated on the arc part when the original staple was closed to B-shape,while it concentrated on the feet for the modified staple after closure.The in vitro tests indicated that the arc part of the original staple ruptured firstly after 7 days immersion,whereas the modified one kept intact,demonstrating residual stress greatly affected the corrosion behavior of the HP-Mg staples.The in vivo implantation showed good biocompatibility of the modified Mg staples,without inflammatory reaction 9 weeks post-operation.The Mg staples kept good closure to the Anastomosis,no leaking and bleeding were found,and the staples exhibited no fracture or severe corrosion cracks during the degradation. | Hongliu Wu Changli Zhao Jiahua Ni Shaoxiang Zhang Jingyi Liu Jun Yan Yigang Chen Xiaonong Zhang | 2016 | Bioactive Materials2016，1，2： | 3 |
| 3 | Study of Cell Behaviors on Anodized TiO_2 Nanotube Arrays with Coexisting Multi-Size Diameters显示文摘It has been revealed that the different morphologies of anodized TiO_2 nanotubes, especially nanotube diameters, triggered different cell behaviors. However, the influence of TiO_2 nanotubes with coexisting multi-size diameters on cell behaviors is seldom reported. In this work, coexisting four-diameter TiO_2 nanotube samples, namely,one single substrate with the integration of four different nanotube diameters(60, 150, 250, and 350 nm), were prepared by repeated anodization. The boundaries between two different diameter regions show well-organized structure without obvious difference in height. The adhesion behaviors of MC3T3-E1 cells on the coexisting fourdiameter TiO_2 nanotube arrays were investigated. The results exhibit a significant difference of cell density between smaller diameters(60 and 150 nm) and larger diameters(250 and 350 nm) within 24 h incubation with the coexistence of different diameters, which is totally different from that on the single-diameter TiO_2 nanotube arrays. The coexistence of four different diameters does not change greatly the cell morphologies compared with the singlediameter nanotubes. The findings in this work are expected to offer further understanding of the interaction between cells and materials. | Yifan Chen Jiahua Ni Hongliu Wu Ruopeng Zhang Changli Zhao Wenzhi Chen Feiqing Zhang Shaoxiang Zhang Xiaonong Zhang | 2016 | Nano-Micro Letters2016，8，1： | 2 |
| 4 | Translational status of biomedical Mg devices in China显示文摘Magnesium(Mg)and its alloys as temporary medical implants with biodegradable and properly mechanical properties have been investigated for a long time.There are already three kinds of biodegradable Mg implants which are approved by Conformite Europeene(CE)or Korea Food and Drug Administration(KFDA),but not China Food and Drug Administration(CFDA,now it is National Medical Products Administration,NMPA).As we know,Chinese researchers,surgeons,and entrepreneurs have tried a lot to research and develop biodegradable Mg implants which might become other new approved implants for clinical applications.So in this review,we present the representative Mg implants of three categories,orthopedic implants,surgical implants,and intervention implants and provide an overview of current achievement in China from academic publications and Chinese patents.We would like to provide a systematic way to translate Mg and its alloy implants from experiment designs to clinical products. | Yu Sun Hongliu Wu Wenhui Wang Rui Zan Hongzhou Peng Shaoxiang Zhang Xiaonong Zhang | 2019 | Bioactive Materials2019，4，1： | 2 |
| 5 | In vitro crevice corrosion of biodegradable magnesium in different solutions显示文摘Magnesium(Mg)is a promising biomedical metal because of its biodegradability.The crevice between tissue and Mg implant can not be neglected in some implantation sites due to inducing crevice corrosion of Mg.In this paper,a new single mold was designed to build the in vitro experimental setup and four kinds of solutions,i.e.the deionized water(DW),the 0.9 wt.%sodium chloride solution(NaCl),the phosphate buffer saline(PBS)and the modified simulated body fluid(m-SBF)were used to explore necessary factors of crevice corrosion in Mg.It was observed that crevice corrosion in Mg sheets would occur in NaCl and PBS solution under 0.2,0.5 and 0.8 mm crevice thickness.And it was found that there were two necessary factors,i.e.chloride ion and crevice dimension,in crevice corrosion.For the high-purity Mg cannulated screws,crevice corrosion could occur inside tunnel when immersed in PBS. | Bowei Chen Hongliu Wu Ruibang Yi Wenhui Wang Haidong Xu Shaoxiang Zhang Hongzhou Peng Junwei Ma Haomiao Jiang Rui Zan Shuang Qiao Yu Sun Peng Hou Pei Han Jiahua Ni Xiaonong Zhang | 2020 | Journal of Materials Science & Technology2020，52，17： | 0 |
| 6 | Sandbody architecture of the bar finger within shoal water delta front:Insights from the Lower Member of Minghuazhen Formation,Neogene,Bohai BZ25 Oilfield,Bohai Bay Basin,East China显示文摘Core, well logging and seismic data were used to investigate sandbody architectural characteristics within Lower Member of Minghuazhen Formation in Neogene, Bohai BZ25 Oilfield, and to analyze the sedimentary microfacies, distribution and internal architecture characteristics of the bar finger within shoal water delta front. The branched sand body within shoal water delta front is the bar finger, consisting of the mouth bar, distributary channel over bar, and levee. The distributary channel cuts through the mouth bar, and the thin levee covers the mouth bar which is located at both sides of distributary channel. The bar finger is commonly sinuous and its sinuosity increases basinward. The distributary channel changes from deeply incising the mouth bar to shallowly incising top of the mouth bar.The aspect ratio ranges from 25 to 50 and there is a double logarithmic linear positive relationship between the width and thickness for the bar finger, which is controlled by base-level changing in study area. For the bar finger, injection and production in the same distributary channel should be avoided during water flooding development. In addition, middle–upper distributary channel and undrilled mouth bar are focus of tapping remaining oil. | XU Zhenhua WU Shenghe LIU Zhao ZHAO Junshou GENG Hongliu WU Junchuan ZHANG Tianyou LIU Zhaowei | 2019 | Petroleum Exploration and Development2019，46，2： | 0 |
| 7 | A NOTE ON RECURRENT SETS显示文摘ANOTEONRECURRENTSETS￥WENZHIYING;WULIMING;ZHONGHONGLIU(DepartmeDtofMathematics,WuhanUniversitysWuhan430072,China.)Abstract:The... | WEN ZHIYING WU LIMING ZHONG HONGLIU(DepartmeDt of Mathematics, Wuhan Universitys Wuhan 430072, China.) | 1994 | Chinese Annals of Mathematics,Series B1994，15，3： | 0 |
| 8 | Problem Analysis of Agricultural Products Sales Channels in Shishan Area of Northwest Guangxi and Countermeasures Study:A Case Study of Nandan County of Hechi City显示文摘The level of agricultural product sales is one of the important factors that directly affect the economic income of rural villagers.Due to the limitations of geographical conditions and the lagging economic and social development,there are major problems in the sales of agricultural products in Shishan area.To better help the sales of agricultural products in Shishan area of northwest Guangxi,Nandan County of Hechi City is taken as research object.Current situation of agricultural products production and sales channels in Nandan County is understood,and problems existing in the sales of agricultural products in Nandan County are analyzed.Moreover,targeted opinions and suggestions are put forward from the aspect of innovating the sales channels of agricultural and sideline products,thereby helping quality improvement and development of agricultural industry. | Hongliu FENG Ping WU Jinping CHEN Yongxian LIU | 2022 | Meteorological and Environmental Research2022，13，4： | 0 |
| 9 | Doping inorganic ions to regulate bioactivity of Ca–P coating on bioabsorbable high purity magnesium显示文摘Performance of biomaterials was strongly affected by their surface properties and could be designed artificially to meet specific biomedical requirements. In this study, F(F), Si O2 4(Si), or HCO 3(C)-doped Ca–P coatings were fabricated by biomimetic deposition on the surface of biodegradable high-purity magnesium(HP Mg). The crystalline phases, morphologies and compositions of Ca–P coatings had been characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM) and energy-dispersive spectroscopy(EDS). The biomineralization and corrosion resistance of doped Ca–P coatings had also been investigated. The results showed that the Ca–P coating with or without doped elements mainly contained the plate-like dicalcium phosphate dehydrate(DCPD) phase. The doped F, Si, or C changed the surface morphology of Ca–P coatings after mineralization. Doped F enhanced the mineralization of Ca–P coating, and doped Si retarded the mineralization of Ca–P coating.However, H2 evolution of HP Mg discs with different Ca–P coatings was close to 0.4–0.7 ml/cm2 after two-week immersion. That meant that the corrosion resistance of the Ca–P coatings with different or without doped elements did not change significantly. | Hongliu Wu Ruopeng Zhang Xiao Li Jiahua Ni Changli Zhao Yang Song Jiawei Wang Shaoxiang Zhang Yufeng Zheng Xiaonong Zhang | 2014 | Progress in Natural Science:Materials International2014，24，5： | 0 |
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