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65篇 您的检索式:作者名="Longhai"
    题名 作者 年代 出处 被引量
1Sediment Transport in the Nearshore Area of Phoenix Island显示文摘Based on the measured data, suspended sediment concentration, surface sediment grain size, current and waves, the sediment transport mechanisms and pathways in the Phoenix Island area were analyzed using methods of flux decomposition and Grain Size Trend Analysis(GSTA). The results show that net suspended sediment is mainly transported by average current, Stokes drift, and gravitational circulation. The transport direction of suspended sediment is varying and basically following the direction of residual tidal currents. Surface sediment transport pathways are primarily parallel to the coastline along with two convergent centers. Waves and longshore currents have a significant influence on sediment transport, but the influence is limited due to a steep and deep underwater bank. Tidal current is the main controlling factor for sediment transport, especially in the deep water area. Neither suspended nor surface sediment is transported towards the southwest. The South Shandong Coastal Current(SSCC) has little effect on sediment transport processes in the nearshore area of Phoenix Island.HU Rijun MA Fang WU Jianzheng ZHANG Wei JIANG Shenghui XU Yongchen ZHU Longhai WANG Nan LIU Aijiang 2016Journal of Ocean University of China2016,15,5:4
2Suspended Sediment Transport and Deposition in the Zhoushan Archipelago Sea Area显示文摘The transport mechanism and settlement characteristics of suspended sediments are analyzed in this article on the basis of measured data. Results indicate that the concentration and flux of suspended sediments decrease sharply from Hangzhou Bay to the offshore area. Suspended sediment transport is mainly controlled by advection transport and gravitational circulation transport. The settling velocity of suspended sediments gradually decreases from Hangzhou Bay to the offshore area. The settlement of suspended sediments mainly takes place during the turning phase of the tidal currents.HU Rijun WU Jianzheng ZHU Longhai MA Fang 2009Journal of Ocean University of China2009,8,4:4
3miR-888 in MCF-7 Side Population Sphere Cells Directly Targets E-cadherin显示文摘Side population(SP) cells are a small subset of cells isolated from a cultured cancer cell line that exhibit characteristics similar to those of cancer stem cells(CSCs), such as high metastatic and tumorigenic potential. The molecular mechanisms that give rise to the malignant properties of SP cells are not clear. We isolated SP cells from the MCF-7 breast cancer cell line and profiled microRNA(miRNA)expression patterns between SP cell-derived spheroids and non-SP cells. SP spheroids were found to possess 42 up-regulated miRNAs and27 down-regulated ones(above 5-fold changes). One of the up-regulated miRNAs, miR-888 computationally predicted to participate in the adherens junction(AJ) pathway, was investigated. Over-expression of miR-888 in MCF-7 cells reduced the mRNA levels of all four AJ pathway genes(E-cadherin, ACTG1, PTPRT and CDC42) that were selected for testing, whereas knocking down miR-888 reversed the trends. Western blot and flow cytometric quantitation of the membrane E-cadherin levels showed the same trend of change under these treatments. Luciferase reporter assay showed E-cadherin is a direct target of miR-888. As a potential role in intercellular adhesiveness and maintenance of malignant tissue architecture, the results indicate that miR-888 is a repressor of the AJ pathway in MCF-7 cells and that up-regulation of miR-888 contributes to aggressiveness in MCF-7 SP cells.Shengjian Huang Ming Cai Yinghui Zheng Longhai Zhou Qiang Wang Liangbiao Chen 2014Journal of Genetics and Genomics2014,41,1:3
4Beach Morphology and Coastline Evolution in the Southern Bohai Strait显示文摘The beach studied in this paper spans a length of 51 km and is one of several long sandy beaches in the southern Bohai Strait. Due to the obstruction of islands in the northeast and the influence of the underwater topography, the wave environment in the offshore area is complex; beach types and sediment transport characteristics vary along different coasts. The coastlines extracted from six aerial photographs in different years were compared to demonstrate the evolving features. Seven typical beach profiles were selected to study the lateral beach variation characteristics. Continuous wind and wave observation data from Beihuangcheng ocean station during 2009 were employed for the hindcast of the local wave environment using a regional spectral wave model. Then the results of the wave hindcast were incorporated into the LITDRIFT model to compute the sediment transport rates and directions along the coasts and analyze the longshore sand movement. The results show that the coastline evolution of sand beaches in the southern Bohai Strait has spatial and temporal variations and the coast can be divided into four typical regions. Region(I), the north coast of Qimudao, is a slightly eroded and dissipative beach with a large sediment transport rate; Region(II), the southwest coast of Gangluan Port, is a slightly deposited and dissipative beach with moderate sediment transport rate; Region(III), in the central area, is a beach that is gradually transformed from a slightly eroded dissipative beach to a moderately or slightly strong eroded bar-trough beach from west to east with a relatively moderate sediment transport rate. Region(IV), on the east coast, is a strongly eroded and reflective beach with a weak sediment transport rate. The wave conditions exhibit an increasing trend from west to east in the offshore area. The distribution of the wave-induced current inside the wave breaking region and the littoral sediment transport in the nearshore region exhibit a gradual weakening tendency from west to east, which is opposite to the trend of the wave conditions outside the breaking region. The presence of submerged shoal(Dengzhou Shoal), deep trough(Dengzhou Channel), islands and irregular topography influnces the wave climate, beach types, wave-induced current features, littoral sediment transport trends and coastline evolution patterns in the southern Bohai Strait. Human activities, such as the sand exploitation of Dengzhou Shoal and other coastal engineering projects, also influence the beach morphology and coastline evolution.ZHANG Wei WU Jianzheng LI Weiran ZHU Longhai HU Rijun JIANG shenghui SUN Yonggen WANG Huijuan 2015Journal of Ocean University of China2015,14,5:3
5A nanotheranostic agent based on Nd^(3+)-doped YVO_(4) with blood-brain-barrier permeability for NIR-Ⅱ fluorescence imaging/magnetic resonance imaging and boosted sonodynamic therapy of orthotopic glioma显示文摘The specific diagnosis and treatment of gliomas is a primary challenge in clinic due to their high invasiveness and blood-brain barrier(BBB)obstruction.It is highly desirable to find a multifunctional agent with good BBB penetration for precise theranostics.Herein,we design and construct a core-shell structured nanotheranostic agent(YVO_(4):Nd^(3+)-HMME@MnO_(2)-LF,marked as YHM)with YVO_(4)∶Nd^(3+) particles as the core and MnO_(2) nanosheets as the shell.Sonosensitizer hematoporphyrinmonomethyl ether(HMME)and lactoferrin(LF)were further loaded and modified on the surface,giving it a good ability to cross the BBB,near-infrared fluorescence imaging in the second window(NIR-Ⅱ)/magnetic resonance imaging(MRI)bimodality,and highly efficient sonodynamic therapy(SDT)of orthotopic gliomas.The YVO_(4):Nd^(3+)(25%)core exhibited good NIR-Ⅱ fluorescence properties,enabling YHM to act as promising probes for NIR-Ⅱ fluorescence imaging of vessels and orthotopic gliomas.MnO_(2) shell can not only provide O2 in the tumor microenvironments(TME)to significantly improve the healing efficacy of SDT,but also release Mn^(2+) ions to achieve T1-weight MRI in situ.Non-invasive SDT can effectively restrain tumor growth.This work not only demonstrates that multifunctional YHM is promising for diagnosis and treatment of orthotopic glioma,but also provides insights into exploring the theranostic agents based on rare earth-doped yttrium vanadate nanoparticles.Zhijia Lv Longhai Jin Yue Cao Hao Zhang Dongzhi Xue Na Yin Tianqi Zhang Yinghui Wang Jianhua Liu Xiaogang Liu Hongjie Zhang 2022Light(Science & Applications)2022,11,6:3
6From Cultural Negation to Cultural Hybridity——On Whitman Ah Sing’s Pilgrimage in Tripmaster Monkey His Fake Book显示文摘本文运用后殖民主义批评家霍米·巴巴的'超越'理论分析美国华裔作家汤亭亭的《引路人孙行者:他的即兴曲》中的主人翁惠特曼·阿新的心路成长历程。阿新最初否认中国文化,一心向往主流文化,结果使得自己被双重边缘化。经过一系列挫折之后,阿新开始进行文化商讨,直至后来的文化杂交,成功地获得属于自己、适应自己的文化属性。Zhang Longhai,Xiamen University 2006Comparative Literature:East & West2006,,1:3
7Sandwiching Sulfur into the Dents Between N,O Co-Doped Graphene Layered Blocks with Strong Physicochemical Confinements for Stable and High-Rate Li-S Batteries显示文摘The development of lithium-sulfur batteries(LSBs)is restricted by their poor cycle stability and rate performance due to the low conductivity of sulfur and severe shuttle effect.Herein,an N,O co-doped graphene layered block(NOGB)with many dents on the graphene sheets is designed as effective sulfur host for high-performance LSB s.The sulfur platelets are physically confined into the dents and closely contacted with the graphene scaffold,ensuring structural stability and high conductivity.The highly doped N and O atoms can prevent the shuttle effect of sulfur species by strong chemical adsorption.Moreover,the micropores on the graphene sheets enable fast Li^+transport through the blocks.As a result,the obtained NOGB/S composite with 76 wt%sulfur content shows a high capacity of 1413 mAh g^-1 at 0.1 C,good rate performance of 433 mAh g^-1 at 10 C,and remarkable stability with 526 mAh g^-1 at after 1000 cycles at 1 C(average decay rate:0.038%per cycle).Our design provides a comprehensive route for simultaneously improving the conductivity,ion transport kinetics,and preventing the shuttle effect in LSBs.Mengjiao Shi Su Zhang Yuting Jiang Zimu Jiang Longhai Zhang Jin Chang Tong Wei Zhuangjun Fan 2020Nano-Micro Letters2020,12,11:3
8Boosting Chemodynamic Therapy by the Synergistic Effect of Co‑Catalyze and Photothermal Effect Triggered by the Second Near‑Infrared Light显示文摘In spite of the tumor microenvironments responsive cancer therapy based on Fenton reaction(i.e.,chemodynamic therapy,CDT)has been attracted more attentions in recent years,the limited Fenton reaction efficiency is the important obstacle to further application in clinic.Herein,we synthesized novel FeO/MoS2 nanocomposites modified by bovine serum albumin(FeO/MoS2-BSA)with boosted Fenton reaction efficiency by the synergistic effect of co-catalyze and photothermal effect of MoS2 nanosheets triggered by the second near-infrared(NIR II)light.In the tumor microenvironments,the MoS2 nanosheets not only can accelerate the conversion of Fe3+ions to Fe2+ions by Mo4+ions on their surface to improve Fenton reaction efficiency,but also endow FeO/MoS2-BSA with good photothermal performances for photothermal-enhanced CDT and photothermal therapy(PTT).Consequently,benefiting from the synergetic-enhanced CDT/PTT,the tumors are eradicated completely in vivo.This work provides innovative synergistic strategy for constructing nanocomposites for highly efficient CDT.Songtao Zhang Longhai Jin Jianhua Liu Yang Liu Tianqi Zhang Ying Zhao Na Yin Rui Niu Xiaoqing Li Dongzhi Xue Shuyan Song Yinghui Wang Hongjie Zhang 2020Nano-Micro Letters2020,12,12:2
9Synthesis and characterization of ferroelectric side chain liquid crystal polymers bearing barana-shaped ehiral mesogens显示文摘Wu Longhai Chu Chwnsan Janarthanan N 2000Journal of Polymer Research2000,7,2:1
10Synthesis and characterization of thionphene-containing liquid crystals显示文摘Wu Longhai Wang Yenchin Hsn Chainshu 2000Liq Cryst2000,27,11:1
11Preparation and charac- terization of graphitie carbon nitride through pyrolysis of mela- mine显示文摘Li Xuefei Zhang Jian Shen Longhai 2009Applied Physics A2009,94,2:1
12Preparation and Properties of Nano-SiO_2/TDE-85/BMI/BAD Cy Composites显示文摘A new type of the nanometer particles and epoxy/bismaleimide-triazine nanocomposites were prepared using a nanometer silica (nano-SiO2), a 4,5-epoxycyclohexane 1,2-dicarboxylic acid dilycidyl (TDE-85) epoxy resin, a 4,4'-bismaleimidodiphenymethane (BMI) and a bisphenol a dicyanate (BADCy). The properties of nano-SiO2/TDE-85/BMI/BADCy composites, such as mechanical and thermal properties, were systemically investigated in detail by mechanical measurement, scanning electron microscope (SEM), dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA). The experimental results showed that the addition of the appropriate amount of nano-SiO2 could improve the impact strength and the flexural strength of the nano-SiO2/TDE-85/BMI/BADCy composites. Simultaneously, the thermal stability of the blends was found to be higher than that of the TDE-85/BMI/BADCy copolymers.吴广磊 KOU Kaichang CHAO Min ZHUO Longhai ZHANG Jiaoqiang 2013Journal of Wuhan University of Technology(Materials Science)2013,28,2:1
13The formation mechanism of titania nanotube arrays in hydrofluoric acid electrolyte显示文摘Jing Bai Baoxue Zhou Longhai Li Yanbiao Liu Qing Zheng Jiahui Shao Xinyuan Zhu Weimin Cai Junsheng Liao Lexi Zou 2008Journal of Materials Science2008,,6:1
14Silicon-plus photonics显示文摘因为他们与成熟互补金属氧化物半导体技术的相容性,硅 photonics 变得很流行。然而,纯硅仍然是很困难的被利用获得各种各样的 photonic 为大规模 photonic 集成的功能的设备由于内在的性质。硅正的 photonics,哪个 pluses 打破硅的限制的另外的材料,当前并且以后正在起一个很重要的作用。在这份报纸,我们给 siliconplus 的进步上的评论和讨论 photonics,包括结构。Daoxin DAI Yanlong YIN Longhai YU Hao WU Di LIANG Zhechao WANG Liu LIU 2016Frontiers of Optoelectronics2016,9,3:1
15Formation and growth mechanism of ripple-like A1N nanowires 显示文摘Longhai Shen Xuefei Li Qiliang Cui 2010Appl Phys A2010,99,1:1
16Calculation of physica| optics integrals over NURBS surface using a delamlnatlng quad- rature method 显示文摘Li Jianbing Wang Xuesong Qu Longhai 2012IEEE Transactions on Antennas and Propaga- tion2012,60,5:1
17Effect of excess Pb inPT layers on microstructure and dielectric characteristic of PT/PZT/PT thin films显示文摘Wang Longhai Yu Jun Yang Weiming 2005Integrated Ferroelectrics2005,75,1:1
18Comparison investigatingproperties of the Pb-based multilayer ferroelectric thin films forFeRAM显示文摘Wang Longhai Yu Jun Wang Yunbo 2006J Materials Science:Materials in Electronics2006,17,7:1
19Synthesis of Soluble and Thermally Stable Polyimides with Phthalimide as Pendent Group from Pyridine-Containing Triamine 显示文摘ZHUO Longhai KOU Kaichang WANG Yiqun 2014J Mater Sci2014,49,14:1
20Clinical and biologic analysis of pancreatoblastoma显示文摘Sheng L Weixia Z Longhai Y 2005Pancreas2005,30,:1
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