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| 1 | Evolution and variation of the Tsushima warm current during the late Quaternary: Evidence from planktonic foraminifera, oxygen and carbon isotopes显示文摘The evolution and variation history of the Tsushima warm current during the late Quaternary was reconstructed based on the quantitative census data of planktonic foraminiferal fauna, together with oxygen and carbon isotope records of mixed layer dweller G. ruber and thermocline dweller N. dutertrei in piston core CSH1 and core DGKS9603 collected separately from the Tsushima warm current and the Kuroshio dominated area. The result showed that the Tsushima warm current vanished in the lowstand period during 40―24 cal ka BP, while the Kuroshio still flowed across the Okinawa Trough, arousing strong upwelling in the northern Trough. Meanwhile, the influence of freshwater greatly increased in the northern Okinawa Trough, as the broad East China Sea continental shelf emerged. The freshwater reached its maximum during the last glacial maximum (LGM), when the upwelling obviously weakened for the lowest sea-level and the depression of the Kuroshio. The modern Tsushima warm current began its development since 16 cal ka BP, and the impact of the Kuroshio increased in the middle and north- ern Okinawa Trough synchronously during the deglaciation and gradually evolved as the main water source of the Tsushima current. The modern Tsushima current finally formed at about 8.5 cal ka BP, since then the circulation structure has been relatively stable. The water of the modern Tsushima cur- rent primarily came from the Kuroshio axis. A short-term wiggle of the current occurred at about 3 cal ka BP, probably for the influences from the enhancement of the winter monsoon and the depression of the Kuroshio. The cold water masses greatly strengthened during the wiggle. | LI TieGang SUN RongTao ZHANG DeYu LIU ZhenXia LI Qing JIANG Bo | 2007 | Science China Earth Sciences2007，50，5： | 15 |
| 2 | A broad deglacial δ^(13)C minimum event in planktonic foraminiferal records in the Okinawa Trough显示文摘The equatorial Pacific upwelling zone has been suspected of playing an important role in the global atmospheric CO2 changes associated with glacial-interglacial cycles. In order to assess the influencing scope of the surface water deglacial δ13C minimum in the tropical low-latitude Pacific, the core DGKS9603, collected from the middle Okinawa Trough, was examined for δ13C records of planktonic fo-raminifera N. dutertrei and G. ruber. The planktonic fo-raminiferal δ13C records show a clear decreasing event from 20 to 6 cal. kaBP., which is characterized by long duration of about 14 ka and amplitude shift of 0.4×10-3. Its minimum value occurred at 15.7 cal kaBP. The event shows fairly synchrony with the surface water deglacial δ13C minimum identified in the tropical Pacific and its marginal seas. Because there is no evidence in planktonic foraminiferal fauna and δ18O records for upwelling and river runoff enhancement, the broad deglacial δ13C minimum event in planktonic foraminiferal records | LI Tiegang, LIU Zhenxia, M. A. Hall, Y. Saito, S. Berne, GANG Shuxi & CHENG ZhenboInstitute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China The First Institute of Oceanography, State Oceanic Administration, Qingdao 266003, China Godwin I | 2002 | Chinese Science Bulletin2002，47，7： | 7 |
| 3 | The sedimentation rates in the Okinawa Trough during the Late Quaternary显示文摘On the basis of accelerator mass spectrometer radiocarbon (AMS14C) dating, sedimentation rates of 11 cores collected from thenorthern to southern Okinawa Trough are discussed. The sedimentation rates in the Okinawa Trough roughly range from 11 to 39cm/ka, and the average is 23.0 cm/ka. China’s continental matter is the main sediment source of the middle Okinawa Trough and hasimportant contribution to the northern and southern Okinawa Trough. The sedimentation rates during the marine oxygen isotope (MIS)2 are uniformly higher than those during MIS 1 in the northern and middle Okinawa Trough while they are on the contrary in thesouthern Okinawa Trough. Sedimentation rates in the Okinawa Trough can be one of the proxies of sediment source and an indicatorof cooling events. | XIONG Yingqian LIU Zhenxia LI Tiegang LIU Yanguang YU Hua | 2005 | Acta Oceanologica Sinica2005，24，4： | 3 |
| 4 | Microstructure and Wear Behavior of Ti-6Al-4V Treated by Plasma Zr-alloying and Plasma Nitriding显示文摘A duplex treatment of plasma Zr-alloying and plasma nitriding was used to improve the tribological properties of Ti-6Al-4V. The microstructure of the Zr-N composite(alloyed) layer formed on Ti-6Al-4V and its hardness, friction and wear properties were investigated by using OM, SEM, GDOES, EDS, microhardness tester as well as ball-on-disk tribometer. The results of microstructural analysis show that the alloyed layer is compact and uniform and is mainly composed of ZrN, TiN_(0.3) and AlN. A very tiny adhesive and slight oxidation wear is the primary wear mechanism for the modified Ti-6Al-4V. The tribological property is improved significantly after the duplex treatment. The good combination of antifriction and wear resistance for modified Ti-6Al-4V is mainly attributed to the higher surface hardness of metal nitrides formed on the surface and enhanced supporting of the Zr-diffusing layer. | 陈凯 刘小萍 LIU Xiaozhen MENG Tianxu GUO Qi WANG Zhenxia LIN Naimin | 2016 | Journal of Wuhan University of Technology(Materials Science)2016，31，5： | 2 |
| 5 | 电磁监测试验卫星及其初步成果显示文摘As the first satellite of the China national geophysical field observation series of stllite missions,the China Seismo--Electromagnetic Satellite(CSES)was designed upon an optimized CAST2000 platform for a sun synchronous orbit.Onboard CSES,there are total eight types of scientific payloads including the Search-coil Magnetometer,Electric Field Detector,High Precision Magnetometer,GNSS Occupation Receiver,Plasma Analyzer,Langmuir Probe,Energetic Particle Detector Package,and a Three-band Transmitter to individually acquire the global eletromagnetic field,elec-tromagnetic waves,ionospheric plasma parameters as well as energetic particles.Up to now,CSES has been operating normally in orbit for 2 years.By using the various sensor data acquired by CSES,we have achieved scientfic research in the areas of the global geomagnetic field modeling,space weather,earthquake event analysis,the Lithosphere-Atmo-sphere-lonosphere coupling mechanism and so on.. | SHEN Xuhui ZEREN Zhima YUAN Shigeng DAI Jianping HUANG Jianping ZHU Xinghong YANG Yanyan YAN Rui ZHAO Shufan LIU Dapeng ZHANG Zhenxia WANG Qiao CHU Wei LU Hengxin XU Song GUO Feng TAN Qiao LI Wenjing ZHOU Na | 2020 | Aerospace China2020，21，1： | 2 |
| 6 | Three-Dimensional Numerical Simulation of Ice Crystal Melting in Jet Engine显示文摘A method was presented for calculating the melting rate of ice crystals in different axial positions in a compressor. The volume of fluid model and enthalpy-porosity model were used to simulate the melting process of single ice crystal. The result was validated by experimental data from literature. The change of the liquid fraction of the ice crystals with the axial position was obtained when the temperature distribution inside the compressor was introduced into the melting process. The liquid fraction of the spherical ice crystals was fitted with the ice crystal diameter as a variable, and the general distribution function for computing liquid fraction in any axial position in the compressor was obtained. The function of axial position as a variable for non-spherical ice crystal was also got. | ZHU Pengfei ZHANG Jiachen HAN Bingbing ZHANG Lifen LIU Zhenxia | 2019 | Journal of Thermal Science2019，28，5： | 2 |
| 7 | Reduced miR-125a-5p expression is associated with gastric carcinogenesisthrough the targeting of E2F3显示文摘 | Yanjun Xu Zhenxia Huang Yueli Liu | 2014 | Molecular Medicine Reports2014，，5： | 1 |
| 8 | An Experimental Study on the Effects of a Film Cooling Configuration and Mainstream Temperature on Depositing显示文摘The effects of a film cooling configuration and mainstream temperature on the depositing of particles are experimentally studied by using plate models. The particles are generated by melting wax and atomizing it. One model has a film cooling configuration and the other does not. The experimental results show that the film cooling configuration does not influence the depositing on the leading edge of the model very significantly. However, the film cooling configuration could increase the depositing on the upper surface of the model dramatically since the flow structure on the upper surface is changed due to the film cooling configuration. The effect of the mainstream temperature on the depositing is studied by using the model with film cooling configuration. The lower and higher mainstream temperature both could reduce the depositing. However, the mechanisms are different. The lower mainstream temperature could make more molten particles become solid particles, which could rebound from the surface of the model, reducing the depositing. The higher mainstream temperature could make all particles remain molten with higher temperature. In this case, more particles could splash from the surface of the model. Therefore, there may be a mainstream temperature at which the depositing mass is maximum. | LIU Zhengang LIU Zhenxia ZHANG Fei LIU Yanan | 2019 | Journal of Thermal Science2019，28，2： | 1 |
| 9 | Wear and Corrosion Properties of Mo Surface-modified Layer in TiNi Alloy Prepared by Plasma Surface Alloying显示文摘In order to improve the wear resistance and restrain nickel release of TiNi alloys,the Mo modified layers on TiNi substrates were obtained using the double glow plasma surface alloying technique.Scanning electron microscopy(SEM),glow discharge optical emission spectroscopy(GDOES) and X-ray diffraction(XRD) were employed to investigate the morphology,composition and structure.Microhardness test and scratch test were performed to analyze the microhardness and coating/substrate adhesion.Tribological and electrochemical behaviors of the Mo modified layers on TiNi were tested by the reciprocating wear instrument and electrochemical measurement system.The Ni concentrations in Hanks' solution where surface electrochemical tests took place were measured by mass spectrometry.The surface-modified layer contained a Mo deposition layer and a Mo diffusion layer.The X-ray diffraction analysis revealed that the modified layers were composed of Mo,MoTi,Mo Ni,and Ti_2Ni.The microhardnesses of the Mo modified layers treated at 900 ℃ and 950 ℃ were 832.8 HV and 762.4 HV,respectively,which was about 3 times the microhardness of the TiNi substrate.Scratch tests indicated that the modified layers possessed good adhesion with the substrate.Compared with as-received TiNi alloy,the modified alloys exhibited significant improvement of wear resistance against Si_3N_4 with low normal loads during the sliding tests.Mass spectrometry displayed that the Mo alloy layers had successfully inhibited the Ni release into the body. | 张红前 WANG Zhenxia YANG Hongyu SHAN Xiaolin LIU Xiaoping YU Shengwang 贺志勇 | 2016 | Journal of Wuhan University of Technology(Materials Science)2016，31，4： | 1 |
| 10 | Balan- cing of flexible rotors without trial weights based on fi- nite element modal analysis 显示文摘 | LI Xiaofeng ZHENG Longxi LIU Zhenxia | 2013 | Journal of Vibration and Control2013，19，3： | 1 |
| 11 | Study on chemical mechanical polishing process of lithium niobate显示文摘 | WANG Shengli LIU Yuling LI Zhenxia | 2007 | SPIE2007，6722，67： | 1 |
| 12 | Yangtze shoal: A modern tidal sand sheet in the northwestern part of the East China Sea显示文摘 | LIU Zhenxia | 1997 | Marine Geology1997，137，： | 1 |
| 13 | Tidal- depositional systems of China's continental shelf, with special reference to the eastern Bohai Sea显示文摘 | Liu Zhenxia Xia Dongxing Berne S | 1998 | Marine Geology1998，145，34： | 1 |
| 14 | Tidal deposition systems of Chinas continental shelf, with special reference to the eastern Bohai Sea显示文摘 | Liu Zhenxia Xia Dongxing Bernfi S | 1998 | Marine Geology1998，145，34： | 1 |
| 15 | An Improved CFD-synthesis Method for Predicting Inlet Dynamic Distortion显示文摘对综合CFD与畸变合成方法进行了改进。通过CFD求解,获得AIP上各稳态气动参数。采用BP人工神经网络直接求解高度非线性的湍流相关方程,该方程将CFD求解的稳态气动参数与试验测得湍流度进行关联。经过训练的网络可根据稳态CFD结果预测湍流度。之后根据CFD计算的稳态总压和神经网络预测的湍流度合成动态压力。最后根据合成的动态压力寻找最大瞬时畸变。文中使用了六个工况的飞行数据验证该方法的准确度并且与原方法的计算结果进行了比较。结果表明该方法预测的畸变值与试验畸变值吻合较好,且预测结果较原方法与试验值更接近,该方法能够在试验前用来预测动态畸变,具有很强的工程价值。 | Zhang Lifen Liu Zhenxia Qu Jiyun Wang Xiaofeng | 2009 | Chinese Journal of Aeronautics2009，22，5： | 1 |
| 16 | Tidal deposition systemsof China' s continental shelf, with special reference to the eastern BohaiS ea显示文摘 | Liu Zhenxia Xia Dongxing Berne S | 1998 | Marine Geology1998，145，34： | 1 |
| 17 | Provenance discrimination of siliciclasic sediments in the middle Okinawa Trough since 30 ka: Constraints from rare earth element com- positions 显示文摘 | Dou Yanguang Yang Shouye Liu Zhenxia | 2010 | Marine Geology2010，275，： | 1 |
| 18 | The warm temperature acclimation protein Wap65 as an immune response gene: Its duplicates are differentially regulated by temperature and bacterial infections显示文摘 | Zhenxia Sha Peng Xu Tomokazu Takano Hong Liu Jeffery Terhune Zhanjiang Liu | 2007 | Molecular Immunology2007，，5： | 1 |
| 19 | Internal architecture and mob- ility of tidal sand ridges in the east China sea显示文摘 | Liu Zhenxia Bern4 S Saito Y | 2007 | Continental Shelf Research2007，27，13： | 1 |
| 20 | Provenance discrimination of siliciclastic sediments in the middle Okinawa Trough since 30<ce:hsp sp='0.25'/>ka: Constraints from rare earth element compositions显示文摘 | Yanguang Dou Shouye Yang Zhenxia Liu Peter D. Clift Xuefa Shi Hua Yu Serge Berne | 2010 | Marine Geology2010，，1： | 1 |
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