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| 1 | Biological productivity and carbon cycling in the Arctic Ocean显示文摘Primary production, bacterial production, par-ticulate organic carbon fluxes and organic carbon burial rates were quantified during the summer period of 1999 in the Arctic Ocean via 14C uptake, 3H uptake, 234Th/238U disequilibrium and 210Pbex dating, respectively. The integrated primary production in the water column was as high as 197 mmolC/(m2·d) in the Chukchi shelf and was 3.8 mmolC/(m2·d) in the Canada Basin. These rates are higher than those reported previously. The ratios of bacterial production to primary production in the study region were higher than 0.5, indicating that microbial activity is not depressed but important in cold Arctic waters. 234Th/238U dis-equilibria were evident at the station in the Canada Basin. The presence of significant 234Th deficiency suggested that scavenging and removal processes are also important to bio-geochemical cycles of trace elements in the Arctic Ocean. Particulate organic carbon export flux was estimated to be 1.0 mmolC/(m2·d). Measurements of sediment | CHEN Min HUANG Yipu GUO Laodong CAI Pinghe YANG Weifeng LIU Guangshan QIU Yusheng | 2002 | Chinese Science Bulletin2002，47，12： | 17 |
| 2 | The mean residence time of river water in the Canada Basin显示文摘Seawater was collected from the western Arctic Ocean for measurements of 18O, 226Ra and 228Ra. The fractions of river runoff and sea ice melt-water in water samples were estimated by using δ18O-S-PO* tracer system. The mean residence time of river water in the Canada Basin was calculated based on the relationship between 228Ra/226Ra)A.R. and the fractions of river runoff in the shelf and deep ocean. Our results showed that the river runoff fractions in the Canada Basin were significantly higher than those in the shelf regions, suggesting that the Canada Basin is a major storage region for Arctic river water. 228Ra activity concentrations in the Chukchi shelf and the Beaufort shelf ranged from 0.16 to 1.22 Bq/m3, lower than those reported for shelves in the low and middle latitudes, indicating the effect of sea ice melt-water. A good positive linear relationship was observed between 228Ra/226Ra)A.R. and the fraction of river runoff for shelf waters, while the 228Ra/226Ra)A.R. in the Canada Basin was located below this re-gressive line. The low 228Ra/226Ra)A.R. in the Canada Basin was ascribed to 228Ra decay during shelf wa-ters transporting to the deep ocean. The residence time of 5.0―11.0 a was estimated for the river water in the Canada Basin, which determined the time response of surface freshening in the North Atlantic to the river runoff into the Arctic Ocean. | CHEN Min XING Na HUANG YiPu QIU YuSheng | 2008 | Chinese Science Bulletin2008，53，5： | 9 |
| 3 | The input/removal rates of size-fractionated ^210Po in the Jiulongjiang estuary and its implications显示文摘The geochemical behaviors of dissolved (<0.4 mm), low molecular weight (<10 kDa) and colloidal (10 kDa- 0.4 mm) 210Po in surface waters from the Jiulongjiang estuary were examined and the input/removal rates of different 210Po species were estimated. Both dissolved and low molecular weight 210Po were considerably removed during estuarine mixing. However, colloidal 210Po was removed only at low salinity regions (S <15) but had input behavior at high salin-ity surface waters (S >15). The input/removal rates of three species indicate that 210Po was removed rapidly in the Jiu-longjiang estuary. The discrepancy of input/removal rates between 210Po species suggests different geochemical be-havior and a dynamic transformation between 210Po species. Low molecular weight 210Po may be more appropriate for characterizing the 210Po behavior in estuary zone than the traditional dissolved 210Po. | YANG Weifeng, CHEN Min, HUANG Yipu, QIU Yusheng, ZHANG Lei, XING Na & LI Yanping Department of Oceanography, Xiamen University, Xiamen 361005, China Correspondence should be addressed to Huang Yipu (e-mail: yphuang@ jingxina.xmu.edu.cn) | 2003 | Chinese Science Bulletin2003，48，21： | 8 |
| 4 | Export and remineralization of POM in the Southern Ocean and the South China Sea estimated from ^(210)Po/^(210)Pb disequilibria显示文摘Disequilibria between 210Po and 210Pb in the upper water and their potential applications as a proxy of particle export and remineralization were examined in the Southern Ocean (station IV3) and the South China Sea (NS44). 210Po was deficit in surface waters but excessive relative to 210Pb in subsurface waters. Good positive correlation between 210Po and particulate organic carbon (POC) indicated deficits and excess of 210Po resulted from particulate organic matter (POM) export and remineralization respectively, which was also supported by the decreased δ 13C and increased δ 15N downwards as a result of particle remineralization. On the basis of 210Po/210Pb box-model, POC export flux out of the surface waters were 1.2 mmol C·m-2·d-1 and 2.3 mmol C·m-2·d-1 for station NS44 and IV3, respectively. In the subsurface waters, remineralization fluxes of 210Po were 0.062 Bq·m-2·d-1 and 0.566 Bq·m-2·d-1 for station NS44 and IV3 along with the recycle efficiency of 52±26% and 119±52%, respectively. Remineralized fluxes of POM derived from 210Po and exported POC were 0.6 mmol C·m-2·d-1 and 2.7 mmol C·m-2·d-1 for NS44 and IV3. This study suggested that 210Po was a powerful tracer of particle export and remineralization. | YANG WeiFeng HUANG YiPu CHEN Min QIU YuSheng PENG AnGuo ZHANG Lei | 2009 | Chinese Science Bulletin2009，54，12： | 6 |
| 5 | Export of particulate organic carbon estimated from ^(234)Th-^(238)U disequilibria and its temporal variation in the South China Sea显示文摘Activities of 234Th and nutrient concentrations in the upper 500 m water column were measured at a time-series station in the South China Sea over a time span of 12.3 d. Results showed a reduction of dissolved 234Th and an overall increase of particulate 234Th during the period. Meanwhile, activities of total 234Th kept fairly constant, implying rapid transformation of 234Th between the dissolved and particulate forms. Vertical profiles of total 234Th showed evident deficit of 234Th relative to 238U in the upper 500 m water column. Using an irreversible steady-state model of thorium scavenging, export fluxes of particulateorganic carbon (POC) corresponding to time points T1 and T2 were estimated to be 46.5 and 13.1 mmolC .m-2. d-1. It was demonstrated that the estimation of POC export was greatly dependent on the POC/234Thp ratios and the bias caused by the different models of 234Th scavenging, however, was considered to be of minor importance. | CAI Pinghe, HUANG Yipu, CHEN Min, LIU Guangshan & QIU YushengDepartment of Oceanography, Xiamen University, Xiamen 361005, China | 2001 | Chinese Science Bulletin2001，46，20： | 6 |
| 6 | ^(226)Ra evidence for the ecosystem shift over the past 40 years in the North Pacific Subtropical Gyre显示文摘Surface seawater was collected for ^(226)Ra measurement in the North Pacific Subtropical Gyre from July to October, 1999 and October to December, 2003. Combined with the historical data reported for this sea area, a declined trend of surface ^(226)Ra concentrations was observed since 1960s, indicating the ecosystem shift in response to global warming. On one side, the enhanced stratification of the upper water column resulting from global warming reduced the ^(226)Ra input from the depth, on the other, the temporal increase of biological production resulting from the climate-related ecosystem structure change strengthened the ^(226)Ra removal from the surface ocean. Both the physical and biological processes resulted in the decrease of surface ^(226)Ra concentrations in the North Pacific Subtropical Gyre. The temporal trend of surface ^(226)Ra concentrations was consistent with the trends of chlorophyll a, silicate, phosphate and primary production previously reported. This study provided ^(226)Ra evidence for the ecosystem shift under global change. | YANG JunHong CHEN Min QIU YuSheng LI YanPing MA Qiang LUE E ZHANG Run HUANG YiPu | 2007 | Chinese Science Bulletin2007，52，6： | 5 |
| 7 | CCT family genes in cereal crops: A current overview显示文摘Control of flowering time is crucial for reproductive success of cereal crops, and has a significant impact on grain yield as well as adaptation to diverse environmental conditions.Plants integrate signals from both environmental cues and endogenous regulatory pathways to fine-tune flowering time. The CCT domain originally described to a 43-amino acid sequence at the C-terminus of three Arabidopsis proteins, namely CONSTANS(CO),CO-LIKE, and TIMING OF CAB1(TOC1). The CCT domain-containing genes(CCT genes),which encode transcription co-factors, are the major genetic determinants that modulate flowering time, and this in turn enables plants to effectively expand their territory to take advantage of favorable habitats. Moreover, certain CCT genes have pleiotropic effects on morphological traits and confer resistance/tolerance to biotic/abiotic stresses. CCT genes can be classified into three families, namely COL(CONSTANS-like), PRR(Pseudo-response regulator), and CMF(CCT motif family),based on their non-CCT domains. During domestication, natural and artificial selection resulted in reduced nucleotide diversity of CCT genes in modern cultivated cereals than their wild types. Here, we review the features and functions of CCT genes in cereal crops and propose future research to focus on CCT genes and their utilization in crop breeding. | Yipu Li Mingliang Xu | 2017 | The Crop Journal2017，5，6： | 5 |
| 8 | Fate of particle-reactive pollutants in the Xiamen Bay显示文摘A simple model is established to describe the fate of particle-reactive pollutants in the Xiamen Bay. Based on the conditional distribution coefficients (Kd ) of chemicals and residence times of particle and waters, the model can be used to predict the fractions of pollutants which would be scavenged to sediments and would escape from the system. The model is calibrated using scavenging data derived from 234 Th - 238U disequilibrium. The fate of a potential pollutant which will be scavenged is a function of the properties of the chemical, of the particle dynamics, and of the waters dynamics in the environment. It is inappropriate to overlook any factor. | Chen Min and Huang Yipu (Department of Oceanography, Xiamen University, Xiamen 361005, China) | 1998 | Acta Oceanologica Sinica1998，17，4： | 4 |
| 9 | Excess polonium-210 in the coastal atmosphere originating from marine biogenic material显示文摘The depositional fluxes of atmospheric polonium-210 were measured at one site in Xiamen from August 2001 to March 2002. With predominant marine air mass, the depositional fluxes of atmospheric polonium-210 ranged from 0.01 to 0.09 Bq/(m 2 ·d), with an average of 0.04 Bq/(m 2 ·d). The seasonal pattern showed elevated polonium-210 fluxes in summer and autumn rather than in winter. Atmospheric depositional fluxes of polonium-210 showed a good correlation with beryllium-7 (r 2 =0.85) and lead-210 fluxes (r 2 =0.71), indicating their similar removal mechanism from atmosphere. The relationship between the polonium-210 depositional fluxes and the precipitation amount demonstrated that the precipitation dominates the polonium-210 removal from the atmosphere. The observed high activity ratios of polonium-210 to lead-210 indicated the occurrence of excess polonium-210 in coastal atmosphere, which may originate from marine surface waters either by indirect (foam), or more likely, direct (air-sea exchange) input of marine biogenic material into the atmosphere. This source is even more important than the in situ decay of lead-210. | YANG Weifeng CHEN Min HUANG Yipu LIU Guangshan JIA Chengxia | 2006 | Acta Oceanologica Sinica2006，25，6： | 3 |
| 10 | Measurement of ^(129)I in ferromanganese crust with AMS显示文摘In the present study,the analytical method for 129iodine(129I) in ferromanganese crusts is developed and129iodine/127iodine(129I/127I) ratio in ferromanganese crusts is measured by the accelerator mass spectrometry(AMS).The developed method is applied to analyze 129I/127 I ratio in two ferromanganese crusts MP5D44 and CXD08-1 collected from the Mid-Pacific Ocean.The results show that 129I/127 I ratio in MP5D44 and CXD08-1crusts varies from 7×10–14 to 1.27×10–12,with the lowest value falling on the detection limit level of AMS reported by previous literatures.For the depth distribution of 129I/127 I,it is found that both MP5D44 and CXD08-1 crusts have two growth generations,and the 129I/127 I profiles in two generations all displayed an approximate exponential decay.According to the 129I/127 I ratio,the generate age of bottom layer of MP5D44 and CXD08-1 was estimated to be 54.77 and 69.69 Ma,respectively. | JI Lihong LIU Guangshan CHEN Zhigang HUANG Yipu XING Na JIANG Shan HE Ming | 2015 | Acta Oceanologica Sinica2015，34，10： | 2 |
| 11 | Blind Channel Identification for Cyclic-Prefixed MIMO-OFDM Systems with Virtual Carriers显示文摘This paper applies the repetition index scheme(RIS)to the channel identification of cyclic prefixed(CP)multiple-input multiple-output orthogonal frequency division multiplexing(MIMO-OFDM)systems with virtual carriers(VCs)in the environment of the number of receive antennas being no less than that of transmit antennas.The VCs will cause a rank deficiency problem in computing the subspace information.With the subcarrier mapping matrix,the received signal is simplified to remove the rank deficiency.We use the RIS scheme to generate many times of equivalent symbols so the channel identification can converge with few received OFDM blocks.The RIS scheme will convert the white noise into non-white noise.With the Cholesky factorization,a noise whitening technique is developed to turn the non-white noise back to white noise.We further analyze the necessary conditions of identifiability of channel estimation.Simulations are performed to show the superiority of the proposed method. | Jung-Lang Yu Biling Zhang Yipu Yuan Wei-Ting Hsu | 2020 | China Communications2020，17，3： | 2 |
| 12 | Experimental repetitive quantum channel simulation显示文摘Universal control of quantum systems is a major goal to be achieved for quantum information processing,which demands thorough understanding of fundamental quantum mechanics and promises applications of quantum technologies. So far, most studies concentrate on ideally isolated quantum systems governed by unitary evolutions, while practical quantum systems are open and described by quantum channels due to their inevitable coupling to environment. Here, we experimentally simulate arbitrary quantum channels for an open quantum system, i.e. a single photonic qubit in a superconducting quantum circuit.The arbitrary channel simulation is achieved with minimum resource of only one ancilla qubit and measurement-based adaptive control. By repetitively implementing the quantum channel simulation,we realize an arbitrary Liouvillian for a continuous evolution of an open quantum system for the first time. Our experiment provides not only a testbed for understanding quantum noise and decoherence,but also a powerful tool for full control of practical open quantum systems. | Ling Hu Xianghao Mu Weizhou Cai Yuwei Ma Yuan Xu Haiyan Wang Yipu Song Chang-Ling Zou Luyan Sun | 2018 | Science Bulletin2018，63，23： | 2 |
| 13 | 嵌合人偏肺病毒表位的重组流感病毒毒株的构建显示文摘目的构建和拯救重组嵌合表达人偏肺病毒(human metapneumovirus,hMPV)表位的流感病毒株。方法将通过生物信息学软件预测的hMPVB细胞表位、CTL表位和Th表位串联为不同表位组合,将其表位蛋白基因分别插入A/PR/8/34(PR8)流感病毒非结构蛋白NS1基因,利用8质粒系统共转染293T/MDCK细胞,拯救重组流感病毒毒株,全基因组测序鉴定重组流感病毒。同时测定重组病毒的血凝素(HA)活性和半数细胞感染量(TCID50)及生长曲线。结果在hMPV不同表位间引入间隔序列GPGPG和KK,构建串联多表位抗原,将该抗原基因插入PR8流感病毒非结构蛋白NS基因,经反向遗传学成功拯救出3株重组流感病毒毒株。经MDCK细胞传代3次,鸡胚传代1次,3株重组流感病毒毒株增殖稳定。流感病毒全基因组测序证实,重组的3株流感病毒毒株分别嵌入了hMPV的B细胞表位、CTL表位/Th细胞表位和B细胞表位/Th细胞表位,命名为rFLU/hMPV/B、rFLU/hMPV/CTL-Th、rFLU/hMPV/B-Th。HA滴度分别为128、128、256,TCID50分别为10^7.0/ml、10^6.8/ml和10^7.0/ml。生长曲线试验结果表明重组流感病毒毒株可在MDCK细胞中有效复制。结论成功拯救出3株嵌合有hMPVB细胞表位、CTL表位/Th细胞表位和B细胞表位/Th细胞表位的重组流感病毒株,为后续评价该重组病毒株的免疫效果及是否有潜在疫苗应用价值提供实验资料。 | 李晓燕 Lin Yipu 孔梅 郭丽茹 邹明 苏旭 | 2019 | 中华微生物学和免疫学杂志2019，39，1： | 2 |
| 14 | The distribution of iodine and effects of phosphatization on it in the ferromanganese crusts from the Mid-Pacific Ocean显示文摘In the present paper, iodine(I), iron(Fe), manganese(Mn), cobalt(Co), phosphorus(P) and calcium(Ca)contents in three ferromanganese crusts from the Pacific Ocean are measured by spectrophotometric method and inductively coupled plasma atomic emission spectrometers(ICP-AES) to investigate the contents and distribution of iodine in ferromanganese crusts. The results show that iodine contents in three crusts vary between 27.1 and 836 mg/kg, with an average of 172 mg/kg, and the profile of iodine in the three crusts all exhibits a two-stage distribution zone: a young non-phosphatized zone and an old phosphatized zone that is rich in I, P and Ca. The iodine content ratios of old to young zone in MP5D44, CXD62–1 and CXD08–1 are 2.3, 3.4 and 13.7, respectively.The boundary depths of two-stage zone in MP5D44, CXD62–1 and CXD08–1 locate at 4.0 cm, 2.5 cm and 3.75 cm,respectively, and the time of iodine mutation in three crusts ranges from 17–37 Ma derived from 129 I dating and Co empirical formula, which is consistent with the times of Cenozoic phosphatization events. The present study shows that the intensity of phosphatization is the main responsible for the distribution pattern of iodine in the crusts on the basis of the correlation analysis. Consequently, iodine is a sensitive indicator for phosphatization. | JI Lihong LIU Guangshan HUANG Yipu XING Na CHEN Zhigang | 2015 | Acta Oceanologica Sinica2015，34，8： | 2 |
| 15 | Studies on diffusion and profiles of elements in deep-sea manganese nodules显示文摘Elemental compositions are measured in manganese nodules collected from the Northern Mid-Pacific floor by inductively-coupled plasma atomic emission spectrometry (1CP-AES) and their growth rates are determined by radiometric methods. The result shows that depth distributions of elements in nodules vary with depth as follows; (i) increase, (ii) decrease and (iii) fluctuation. These internodule variations in elemental compositions are considered to be caused by diffusion and migration of elements in nodules and heterogeneities in textures of nodules. In the present paper, a diffusive model is used to elucidate the inward-increase profile of some elements in nodules. The effective diffusive coefficients are estimated to be of the order of 10-9 cm2/a for Ni, V and Zn in the nodules, which is less than the value reported for radionuclides. | Luo Shangde , Wang Lei and Huang Yipu Department of Oceanography, Xiamen University, Xiamen, China | 1989 | Acta Oceanologica Sinica1989，8，3： | 1 |
| 16 | Theory of the magnon Kerr effect in cavity magnonics显示文摘We develop a theory for the magnon Kerr effect in a cavity magnonics system, consisting of magnons in a small yttrium iron garnet(YIG) sphere strongly coupled to cavity photons, and use it to study the bistability in this hybrid system. To have a complete picture of the bistability phenomenon, we analyze two different cases in driving the cavity magnonics system, i.e.,directly pumping the YIG sphere and the cavity, respectively. In both cases, the magnon frequency shifts due to the Kerr effect exhibit a similar bistable behavior but the corresponding critical powers are different. Moreover, we show how the bistability of the system can be demonstrated using the transmission spectrum of the cavity. Our results are valid in a wide parameter regime and generalize the theory of bistability in a cavity magnonics system. | GuoQiang Zhang YiPu Wang JianQiang You | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，8： | 1 |
| 17 | An ultrathin two-dimensional iridium-based perovskite oxide electrocatalyst with highly efficient{001}facets for acidic water oxidation显示文摘The oxygen evolution reaction(OER)is an electrochemical bottleneck half-reaction in some important energy conversion systems(e.g.,water splitting),which is traditionally mediated by iridium oxides in acidic environment.Perovskite-structured Ir-containing oxides(e.g.,SrIrO_(3))are a family of striking electrocatalysts due to their high specific activity,but this excellent quality is difficultly transferred to a nano-electrocatalyst with large active surface and good structural stability.Here,we present a synthesis method that produces a 2D ultrathin{001}-faceted SrIrO_(3)perovskite(2D-SIO)with a thickness of∼5 nm and high surface area(57.6 m^(2)g^(−1)).We show that 2D-SIO can serve as a highly active and stable electrocatalytic nanomaterial for OER under acidic conditions.This perovskite nanomaterial produces 10 mA cm^(−2)current density at a low overpotential(η,243 mV),and maintains its catalytic activity after 5000 continuous cyclic measurements.Besides ultrathin structure and large surface area,the exposed{001}facets are found to be the most crucial and unique structural factor for achieving high catalytic activity and structural stability.Our joint experimental and theoretical results demonstrate that these advantageous microstructural features of 2D-SIO endow it with a strong capability to generate the key O^(*)intermediates,and thereby facilitate O–O bond formation and the OER. | Lan Yang Kexin Zhang Hui Chen Lei Shi Xiao Liang Xiyang Wang Yipu Liu Qing Feng Mingjie Liu Xiaoxin Zou | 2022 | Journal of Energy Chemistry2022，31，3： | 1 |
| 18 | 禽流感病毒H5N1基因突变对神经氨酸酶抑制剂敏感性和神经氨酸酶活性的影响显示文摘目的 研究感染人的禽流感病毒H5N1神经氨酸酶突变I117V,I314V,I117V+I314V对神经氨酸酶抑制剂(NAIs)敏感性和神经氨酸酶(NA)活性的影响.方法 定点突变技术将变异位点引入禽流感病毒株A/Vietnam/1203/04(H5N1)(VN1203)的NA基因中,以A/WSN/33(H1N1)为背景,通过反向遗传学方法构建重组流感病毒,鸡胚传代增殖病毒,荧光定量评估病毒对NAIs的敏感性和NA活性(IC50值和Km,Ki值).结果 与野生株VN1203相比,I117V使NA对奥司他韦敏感性降低(IC50值升高了17倍,Ki值升高了20倍),对扎那米韦敏感性无明显影响(IC50值升高了2倍,Ki值升高了3倍),NA活性降低(Km值升高了23倍).I314V对NAIs敏感性和NA活性均无明显影响.结论 初步结果认为NA突变I117V和I314V对感染人的禽流感病毒H5N1并不产生NAIs耐药,临床上仍然可以用奥司他韦或扎那米韦抗病毒治疗. | 谌资 郑煜煌 Yipu Lin Patrick J Collins Alan J Hay | 2010 | 中华医学杂志2010，90，27： | 1 |
| 19 | 显示文摘 | Zhang Xianghui Zhang Ye Song Yipu | 2005 | Phys E2005，28，： | 1 |
| 20 | Following Trends of the Times and Seeking Common Progress显示文摘Forty years ago,the CPC central leadership with Deng Xiaoping at the core clarified that the essence of socialism is liberation and development of productive forces,elimination of exploitation and polarization,and the ultimate achievement of prosperity for all.Guided by this understanding,China has achieved a tremendous transformation:it has stood up,grown rich,and is becoming strong. | XIA YIPU | 2018 | China Today2018，67，7： | 1 |
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