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| 1 | Component azimuths of the CEArray stations estimated from P-wave particle motion显示文摘The recently built China Digital Seismic Network consists of the China National Digital Seismic Network (CNDSN),31 regional seismic networks and several small aperture arrays with more than 1 000 stations including 850+ broadband stations.It forms a gigantic seismic array that provides an unprecedented opportunity to study the Earth's deep interior besides its routine task of seismic monitoring.Many modern seismic studies rely on rotation of vertical and horizontal components in order to separate different types of seismic waves.Knowledge of the orientations of the two horizontal components thus is important to perform a correction rotation.We analyzed particle motions of teleseismic P waves recorded by the network and used them to estimate the northcomponent azimuth of each station.An SNR-weighted-multi-event method was introduced to obtain component azimuths that best explain the P-wave particle motions of all the events recorded at a station.The method provides robust estimates including a measurement error calculated from background noise levels.We found that about one third of the stations have some sort of problems,including misorientation of the two horizontal components,mislabeling and polarity reversal in one or more components.These problems need to be taken into account for any rotation based seismic studies. | Fenglin Niu Juan Li | 2011 | Earthquake Science2011,24,1: | 43 |
| 2 | Effects of mixture ratio on anaerobic co-digestion with fruit and vegetable waste and food waste of China显示文摘The biochemical methane potentials for typical fruit and vegetable waste (FVW) and food waste (FW) from a northern China city were investigated,which were 0.30,0.56 m 3 CH 4/kgVS (volatile solids) with biodegradabilities of 59.3% and 83.6%,respectively.Individual anaerobic digestion testes of FVW and FW were conducted at the organic loading rate (OLR) of 3 kg VS/(m 3 ·day) using a lab-scale continuous stirred-tank reactor at 35℃.FVW could be digested stably with the biogas production rate of 2.17 m 3/(m 3 ·day) and methane production yield of 0.42 m 3 CH 4/kg VS.However,anaerobic digestion process for FW was failed due to acids accumulation.The effects of FVW:FW ratio on co-digestion stability and performance were further investigated at the same OLR.At FVW and FW mixing ratios of 2:1 and 1:1,the performance and operation of the digester were maintained stable,with no accumulation of volatile fatty acids (VFA) and ammonia.Changing the feed to a higher FW content in a ratio of FVW to FW 1:2,resulted in an increase in VFAs concentration to 1100-1200mg/L,and the methanogenesis was slightly inhibited.At the optimum mixture ratio 1:1 for co-digestion of FVW with FW,the methane production yield was 0.49 m 3 CH 4/kg VS,and the volatile solids and soluble chemical oxygen demand (sCOD) removal efficiencies were 74.9% and 96.1%,respectively. | Jia Lin Jiane Zuo Lili Gan Peng Li Fenglin Liu Kaijun Wang Lei Chen Hainan Gan | 2011 | Journal of Environmental Sciences2011,23,8: | 36 |
| 3 | Developing the Science Product Algorithm Testbed for Chinese Next-Generation Geostationary Meteorological Satellites:Fengyun-4 Series显示文摘Fengyun-4A(FY-4A), the first of the Chinese next-generation geostationary meteorological satellites, launched in2016, offers several advances over the FY-2: more spectral bands, faster imaging, and infrared hyperspectral measurements. To support the major objective of developing the prototypes of FY-4 science algorithms, two science product algorithm testbeds for imagers and sounders have been developed by the scientists in the FY-4 Algorithm Working Group(AWG). Both testbeds, written in FORTRAN and C programming languages for Linux or UNIX systems, have been tested successfully by using Intel/g compilers. Some important FY-4 science products, including cloud mask, cloud properties, and temperature profiles, have been retrieved successfully through using a proxy imager, Himawari-8/Advanced Himawari Imager(AHI), and sounder data, obtained from the Atmospheric Infra Red Sounder, thus demonstrating their robustness. In addition, in early 2016, the FY-4 AWG was developed based on the imager testbed—a near real-time processing system for Himawari-8/AHI data for use by Chinese weather forecasters.Consequently, robust and flexible science product algorithm testbeds have provided essential and productive tools for popularizing FY-4 data and developing substantial improvements in FY-4 products. | Min MIN Chunqiang WU Chuan LI Hui LIU Na XU Xiao WU Lin CHEN Fu WANG Fenglin SUN Danyu QIN Xi WANG Bo LI Zhaojun ZHENG Guangzhen CAO Lixin DONG | 2017 | Journal of Meteorological Research2017,31,4: | 35 |
| 4 | DUF221 proteins are a family of osmosensitive calciumpermeable cation channels conserved across eukaryotes显示文摘 | Congcong Hou Wang Tian Thomas Klelst Kai He Veder Garcia Fenglin Bai Yanli Hao Sheng Luan Legong Li | 2014 | Cell Research2014,24,5: | 22 |
| 5 | A Combination of N2 and CO2 Adsorption to Characterize Nanopore Structure of Organic-Rich Lower Silurian Shale in the Upper Yangtze Platform, South China: Implications for Shale Gas Sorption Capacity显示文摘The pores in shales are mainly of nanometer-scale,and their pore size distribution is very important for the preservation and exploitation of shale gas.This study focused on the organic-rich Lower Silurian black shale from four wells in the Upper Yangtze Platform,and their TOC,mineralogical composition and pore characterization were investigated.Low pressure N_2 and CO_2 adsorption were conducted at 77.35 K and 273.15 K,respectively,and the pore structures were characterized by modified Brunauer-Emmett-Teller(BET),Dubinin-Radushkevich(DR),t-plot,BarrettJoyner-Halenda(BJH) and density functional theory(DFT) methods and then the relationship between pore structure and shale gas sorption capacity was discussed.The results indicate that(1) The Lower Silurian shale has high TOC content of 0.92%-4.96%,high quartz content of 30.6%-69.5%,and high clays content of 24.1%-51.2%.The total specific surface area varies from 7.56 m^2/g to 25.86 m^2/g.Both the total specific surface area and quartz content are positively associated with the TOC content.(2)Shale samples with higher TOC content have more micropores,which results in more complex nanopore structure.Micropore volumes/surface areas and non-micropore surface areas all increase with the increasing TOC content.(3) A combination of N_2 and CO_2 adsorption provides the most suitable detection range(~0.3-60 nm) and has high reliability and accuracy for nanopore structure characterization.(4) The TOC content is the key factor to control the gas sorption capacity of the Lower Silurian shale in the Upper Yangtze Platform. | CHEN Lei JIANG Zhenxue LIU Keyu GAO Fenglin WANG Pengfei | 2017 | Acta Geologica Sinica(English Edition)2017,91,4: | 21 |
| 6 | The Impact of the Linked Factors of Provenance,Tectonics and Climate on Potash Formation:An Example from the Potash Deposits of Lop Nur Depression in Tarim Basin,Xinjiang,Western China显示文摘Potash deposits commonly accumulate in highly restricted settings at the final stage of brine evaporation. This does not mean that potash deposits are formed simply as a result of the evaporation concentration of seawater or lake water, but rather as a coupling result of particular provenance, tectonics and climate activities. In this paper, we focus on the formative mechanism of the potash deposits of Lop Nur depression in Tarim Basin to interpret the detailed coupling mechanism among provenance, tectonics and climate. In terms of the provenance of Lop Nur Lake, the water of the Tarim River which displays 'potassium-rich' characteristics play an important role. In addition, the Pliocene and Lower-Middle Pleistocene clastic beds surrounding Lop Nur Lake host a certain amount of soluble potassium and thus serves as 'source beds' for potash formation. During the late Pliocene, the Lop Nur region has declined and evolved into a great lake from the previous piedmont and diluvial fan area. Since the mid Pleistocene, the great-united Lop Nur Lake has been separated and has generated a chain system consisting of Taitema Lake, Big Ear Lake and Luobei Lake which has turned into the deepest sag in Lop Nur Lake. Dry climate in Lop Nur region has increased since the Pliocene, and became extreme at the late Pleistocene. The study implies that potash formation in Lop Nur Lake depends on the optimal combination of extreme components of provenance, tectonics and climate during a shorter-term period. The optimal patterns of three factors are generally characterized by the long-term accumulation and preliminary enrichment of potassium, the occurrence of the deepest sub-depression and the appearance of an extremely arid climate in Lop Nur region. These factors have been interacting synergistically since the forming of the saline lake and in the later stages strong 'vapor extraction' caused by extremely arid climate is needed to trigger large scale mineralization of potash deposits. | LIU Chenglin JIAO Pengcheng Lü Fenglin WANG Yongzhi SUN Xiaohong ZHANG Hua WANG Licheng YAO Fojun | 2015 | Acta Geologica Sinica(English Edition)2015,89,6: | 18 |
| 7 | Effects of COD/N ratio and DO concentration on simultaneous nitrification and denitrification in an airlift internal circulation membrane bioreactor显示文摘The effects of chemical oxygen demand and nitrogen(COD/N)ratio and dissolved oxygen concentration(DO)on simultaneous nitrification and denitrification(SND)were investigated using an airlift internal circulation membrane bioreactor(AIC-MBR)with synthetic wastewater.The results showed that the COD efficiencies were consistently greater than 90% regardless of changes in the COD/N ratio.At the COD/N ratio of 4.77 and 10.04,the system nitrogen removal efficiency became higher than 70%.However,the nitrogen rem... | Meng Qingjuan Yang Fenglin Liu Lifen Meng Fangang | 2008 | Journal of Environmental Sciences2008,20,8: | 18 |
| 8 | Slip rate along the Lijiang-Ninglang fault zone estimated from repeating microearthquakes显示文摘Seismicity 并且沿着在 1999 和 2006 之间的 Lijiang-Ninglang 差错地区滑动率被调查,波形数据由云南数字地震网络记录了。由双差别方法的重定位的 seismicity 清楚地展出在北、南部的片断之间的不同特征。超过 76% 地震在丽江区域附近发生在差错的南部的片断。重定位的 seismicity 看起来反映学习区域的外壳的速度结构。用跨关联的分析,我们识别了显示出高波形类似的 92 件马甲和 70 根多重谱线的一个总数。大多数这些序列是非周期的,复发间隔从一些分钟变化到几百天。用在学习时期上定期发生了的二个序列,我们获得了一个差错在 ∼23 km 滑动约 5 mm/a 的率,在对的好同意地质并且表面 GPS 测量。 | LI Le CHEN QiFu NIU FengLin FU Hong LIU RuiFeng HOU YanYan | 2009 | Chinese Science Bulletin2009,54,3: | 16 |
| 9 | Isoliquiritigenin inhibits TGF-β1-induced fibrogenesis through activating autophagy via PI3K/AKT/mTOR pathway in MRC-5 cells显示文摘Isoliquiritigenin(ISL),a natural flavonoid derived from the root of liquorice,has been reported to possess anti-inflammatory and antioxidant activities.Previous studies have found that ISL plays a crucial role in anti-fibrosis of adipose tissue and renal tissue;however,its effect on pulmonary fibrogenesis has not been demonstrated.In this study,we aimed to explore the roles and the underlying mechanisms of ISL in TGF-β1-induced fibrogenesis using human lung fibroblast-derived MRC-5 cells.Cell proliferation and migration were determined by MTT and wound healing assay,respectively.The expression levels of alpha-smooth muscle actin(α-SMA),collagen type I alpha 1(COLIA1)and fibronectin(FN),microtubule-associated protein light chain 3(LC3)and related signaling molecules were detected by quantitative real-time PCR,western blot and immunofluorescence assay,correspondingly.EGFP-LC3 transfection was used for autophagy analysis.The results showed that ISL inhibited the TGF-β1-induced proliferation and migration,and down-regulated the expressions ofα-SMA,COLIA1 and FN.ISL treatment led to up-regulation of LC3 in TGF-β1-treated MRC-5 cells,accompanied by significant decrease in the phosphorylation levels of phosphatidylinositol 3-kinase(PI3K),protein kinase B(AKT),and mammalian target of rapamycin(mTOR).In addition,the inhibitory effects of ISL on TGF-β1-induced fibrogenic features in MRC-5 cells were enhanced by pretreatment with autophagy activator Rapmycin and PI3K/AKT inhibitor LY294002 and reversed by autophagy inhibitor 3-methyladenine and PI3K/AKT activator IGF-1.Taken together,our results demonstrated that ISL could attenuate the fibrogenesis of TGF-β1-treated MRC-5 cells by activating autophagy via suppressing the PI3K/AKT/mTOR pathway.Therefore,ISL holds a great potential to be developed as a novel therapeutic agent for the treatment of pulmonary fibrosis. | Jinjuan He Hao Peng Meifang Wang Ying Liu Xingrong Guo Bin Wang Longjun Dai Xueqin Cheng Zhongji Meng Leyong Yuan Fenglin Cai Yijun Tang | 2020 | Acta Biochimica et Biophysica Sinica2020,52,8: | 16 |
| 10 | Removing phosphorus from aqueous solutions by using iron- modified corn straw biochar显示文摘修改铁的玉米稻草 biochar 被用作吸附物把磷从农业流量移开。什么时候有一个总数的农业流量 1.86 mg ī的磷(TP ) | Fenglin LIU Jiane ZUO Tong CHI Pei WANG Bo YANG | 2015 | Frontiers of Environmental Science & Engineering2015,9,6: | 13 |
| 11 | DNA chip-based expression profile analysis indicates involvement of the phosphatidylinositol signaling pathway in multiple plant responses to hormone and abiotic treatments显示文摘The phosphatidylinositol (PI) metabolic pathway is considered critical in plant responses to many environmental factors,and previous studies have indicated the involvement of multiple PI-related gene families during cellular responses.Through a detailed analysis of the Arabidopsis thaliana genome,82 polypeptides were identified as being involved in PI signaling. These could be grouped into different families including PI synthases (PIS),PI-phosphate kinases (PIPK),phospholipases (PL),inositol polyphosphate phosphatases (IPPase),inositol polyphosphate kinases (IPK),PI transfer proteins and putative inositol polyphosphate receptors. The presence of more than 10 isoforms of PIPK,PLC,PLD and IPPase suggested that these genes might be differentially expressed during plant cellular responses or growth and development. Accordingly,DNA chip technology was employed to study the expression patterns of various isoforms.In total,79 mRNA clones were amplified and used for DNA chip generation. Expression profile analysis was performed using samples that represented multiple tissues or cellular responses. Tested samples included normal leaf,stem and flower tissues,and leaves from plants treated with various hormones (auxin,cytokinin,gibberellin,abscisic acid and brassinosteroid) or environmental factors (temperature,calcium,sodium,drought,salicylic acid and jasmonic acid).Results showed that many PI pathway-related genes were differentially expressed under these experimental conditions.In particular,the different isoforms of each family were specifically expressed in many cases,suggesting their involvement in tissue specificity and cellular responses to environmental conditions. This work provides a starting point for functional studies of the relevant PI-related proteins and may help shed light onto the role of PI pathways in development and cellular responses. | Wen Hui LIN, Rui YE, Hui MA, Zhi Hong XU, Hong Wei XUE National Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences and Partner Group of Max-Planck-Institute of Molecular Plant Physiology (MPI-MP) on 'Plant Molecular Physiology and Signal Transduction', 300 Fenglin Road, 200032 Shanghai, China | 2004 | Cell Research2004,14,1: | 12 |
| 12 | Simultaneous removal of COD and nitrogen using a novel carbon-membrane aerated biofilm reactor显示文摘膜给简历电影反应堆充气了是为废水处理的一种有希望的技术。在这研究,碳膜给简历电影反应堆(CMABR ) 充气了被开发了,到同时把碳 organics 和氮从一个反应堆移开。当它与 20 h 的一水力的保留时间(HRT ) 被操作,结果证明 CMABR 有一个高化学的氧要求(货到付款) 和氮移动效率,并且它也显示出完美的表演,就算 HRT 被弄短到 12 h。在这个时期,货到付款,氨氮(NH4+-N ) ,和总氮(TN ) 的移动效率分别地到达了 86% , 94% ,和 84% 。然而,当 HRT 被弄短到 8 h, NH4+-N 和 TN 的移动效率很快衰退了。这因为非编织的纤维和很高器官的装载率上的生物资源的过多的生长。荧光原位杂交(鱼) 分析显示氧化的氨细菌(AOB ) 主要在简历电影的内部层被散布。在一部简历电影的 AOB 和 eubacteria 的共存能提高货到付款和氮的同时的移动。 | HU Shaowei YANG Fenglin SUN Cui ZHANG Jianye WANG Tonghua | 2008 | Journal of Environmental Sciences2008,20,2: | 12 |
| 13 | Graphene-supported nanoscale zero-valent iron:Removal of phosphorus from aqueous solution and mechanistic study显示文摘Excess phosphorus from non-point pollution sources is one of the key factors causing eutrophication in many lakes in China,so finding a cost-effective method to remove phosphorus from non-point pollution sources is very important for the health of the aqueous environment. Graphene was selected to support nanoscale zero-valent iron(nZVI)for phosphorus removal from synthetic rainwater runoff in this article. Compared with nZVI supported on other porous materials,graphene-supported nZVI(G-nZVI) could remove phosphorus more efficiently. The amount of nZVI in G-nZVI was an important factor in the removal of phosphorus by G-nZVI,and G-nZVI with 20 wt.% nZVI(20% G-nZVI)could remove phosphorus most efficiently. The nZVI was very stable and could disperse very well on graphene,as characterized by transmission electron microscopy(TEM) and scanning electron microscopy(SEM). X-ray photoelectron spectroscopy(XPS),Fourier Transform infrared spectroscopy(FT-IR) and Raman spectroscopy were used to elucidate the reaction process,and the results indicated that Fe-O-P was formed after phosphorus was adsorbed by G-nZVI. The results obtained from X-ray diffraction(XRD) indicated that the reaction product between nZVI supported on graphene and phosphorus was Fe3(PO4)2·8H2O(Vivianite). It was confirmed that the specific reaction mechanism for the removal of phosphorus with nZVI or G-nZVI was mainly due to chemical reaction between nZVI and phosphorus. | Fenglin Liu JingHe Yang Jiane Zuo Ding Ma Lili Gan Bangmi Xie Pei Wang Bo Yang | 2014 | Journal of Environmental Sciences2014,26,8: | 12 |
| 14 | Performance and mechanism for cadmium and lead adsorption from water and soil by corn straw biochar显示文摘 | Tong Chi Jiane Zuo Fenglin Liu | 2017 | Frontiers of Environmental Science & Engineering2017,11,2: | 11 |
| 15 | Suitable internal control genes for qRT-PCR normalization in cotton fiber development and somatic embryogenesis显示文摘The mechanisms of cotton fiber development and somatic embryogenesis have been explored sys-tematically with microarray and suppression subtractive hybridization. Real-time RT-PCR provides the simultaneous measurement of gene expression in many different samples,with which the data from microarray or others can be confirmed in detail. To achieve accurate and reliable gene expression re-sults,normalization of real-time PCR data against one or several internal control genes is required,which should not fluctuate in different tissues during various stages of development. We assessed the gene expression of 7 frequently used housekeeping genes,including 18S rRNA,Histone3,UBQ7,Actin,Cyclophilin,Gbpolyubiquitin-1 and Gbpolyubiquitin-2,in a diverse set of 21 cotton samples. For fiber developmental series the expression of all housekeeping genes had the same down tendency after 17 DPA. But the expression of the AGP gene(arabinogalactan protein) that has high expression level at the later fiber development stage was up-regulated from 15 to 27 DPA. So the relative absolute quanti-fication should be an efficient and convenient method for the fiber developmental series. The expres-sion of nonfiber tissues series varied not so much against the fiber developmental series. And three best control genes Histone3,UBQ7 and Gbpolyubiquitin-1 have to be used in a combinated way to get better normalization. | TU LiLi ZHANG XianLong LIU DiQiu JIN ShuangXia CAO JingLin ZHU LongFu DENG FengLin TAN JiaFu ZHANG CunBin | 2007 | Chinese Science Bulletin2007,52,22: | 10 |
| 16 | Design and Implementation of a 3D Ocean Virtual Reality and Visualization Engine显示文摘In this study,a 3D virtual reality and visualization engine for rendering the ocean,named VV-Ocean,is designed for marine applications.The design goals of VV-Ocean aim at high fidelity simulation of ocean environment,visualization of massive and multidimensional marine data,and imitation of marine lives.VV-Ocean is composed of five modules,i.e.memory management module,resources management module,scene management module,rendering process management module and interaction management module.There are three core functions in VV-Ocean:reconstructing vivid virtual ocean scenes,visualizing real data dynamically in real time,imitating and simulating marine lives intuitively.Based on VV-Ocean,we establish a sea-land integration platform which can reproduce drifting and diffusion processes of oil spilling from sea bottom to surface.Environment factors such as ocean current and wind field have been considered in this simulation.On this platform oil spilling process can be abstracted as movements of abundant oil particles.The result shows that oil particles blend with water well and the platform meets the requirement for real-time and interactive rendering.VV-Ocean can be widely used in ocean applications such as demonstrating marine operations,facilitating maritime communications,developing ocean games,reducing marine hazards,forecasting the weather over oceans,serving marine tourism,and so on.Finally,further technological improvements of VV-Ocean are discussed. | CHEN Ge LI Bo TIAN Fenglin JI Pengbo LI Wenqing | 2012 | Journal of Ocean University of China2012,11,4: | 10 |
| 17 | Monte Carlo Method for the Uncertainty Evaluation of Spatial Straightness Error Based on New Generation Geometrical Product Specification显示文摘Straightness error is an important parameter in measuring high-precision shafts. New generation geometrical product specification(GPS) requires the measurement uncertainty characterizing the reliability of the results should be given together when the measurement result is given. Nowadays most researches on straightness focus on error calculation and only several research projects evaluate the measurement uncertainty based on 'The Guide to the Expression of Uncertainty in Measurement(GUM)'. In order to compute spatial straightness error(SSE) accurately and rapidly and overcome the limitations of GUM, a quasi particle swarm optimization(QPSO) is proposed to solve the minimum zone SSE and Monte Carlo Method(MCM) is developed to estimate the measurement uncertainty. The mathematical model of minimum zone SSE is formulated. In QPSO quasi-random sequences are applied to the generation of the initial position and velocity of particles and their velocities are modified by the constriction factor approach. The flow of measurement uncertainty evaluation based on MCM is proposed, where the heart is repeatedly sampling from the probability density function(PDF) for every input quantity and evaluating the model in each case. The minimum zone SSE of a shaft measured on a Coordinate Measuring Machine(CMM) is calculated by QPSO and the measurement uncertainty is evaluated by MCM on the basis of analyzing the uncertainty contributors. The results show that the uncertainty directly influences the product judgment result. Therefore it is scientific and reasonable to consider the influence of the uncertainty in judging whether the parts are accepted or rejected, especially for those located in the uncertainty zone. The proposed method is especially suitable when the PDF of the measurand cannot adequately be approximated by a Gaussian distribution or a scaled and shifted t-distribution and the measurement model is non-linear. | WEN Xiulan XU Youxiong LI Hongsheng WANG Fenglin SHENG Danghong | 2012 | Chinese Journal of Mechanical Engineering2012,25,5: | 10 |
| 18 | Effect of substrate COD/N ratio on performance and microbial community structure of a membrane aerated biofilm reactor显示文摘Two parallel carbon-membrane aerated biofilm reactors were operated at well-defined conditions to investigate the effect of substrate COD/N ratios on the performance and microbial community structure of the bioreactor.Results showed that at substrate COD/N of 5,organic and nitrogen could be eliminated simultaneously,and COD removal degree,nitrification and denitrification efficiency reached 85%,93% and 92%,respectively.With increasing substrate COD/N ratios,the specific oxygen utilization rates of nitrifying bacteria in biofilm were found to decrease,indicating that nitrifying population became less dominant.At substrate COD/N ratio of 6,excessive heterotrophs inhibited the activity of nitrifying bacteria greatly and thus led to poor nitrification process.With the help of fluorescence in situ hybridization(FISH),Nitrosomonas and Nitrosospira were identified as dominant ammonia-oxidizing bacteria in the biofilm at substrate COD/N of 0,whereas only Nitrosospira were detected in the biofilm at COD/N ratio of 5.Nitrospira were present as dominant nitrite-oxidizing bacteria in our study.Confocal laser scanning microscopy images revealed that at substrate COD/N ratio of 0 nitrifying bacteria existed throughout the biofilm and that at COD/N ratio of 5 they were mainly distributed in the inner layer of biofilm. | Huijun Liu Fenglin Yang Shuyi Shi Xincheng Liu | 2010 | Journal of Environmental Sciences2010,22,4: | 9 |
| 19 | Receiver function study of the crustal structure of Northeast China:Seismic evidence for a mantle upwelling beneath the eastern flank of the Songliao Basin and the Changbaishan region显示文摘Northeast China is a unique place to study intra-plate volcanism.We analyzed P-wave receiver function data recorded by 111 permanent broadband seismic stations in Northeast China.The results show that the crustal thickness varies from 27.9 km beneath the eastern flank of the Songliao Basin to 40.7 km beneath the Great Xing'an Range region.The large depth variations of the Moho can be largely but not completely explained by surface topography.The residual Moho depth calculated based on the Airy's isostasy model indicates that the Moho is dynamically uplifted by <3 km beneath the eastern flank of the Songliao Basin and the Changbaishan region.We suggest that a mantle upwelling,which has been proposed by several recent seismic studies,might have caused the uplift. | Huafeng Liu Fenglin Niu | 2011 | Earthquake Science2011,24,1: | 9 |
| 20 | Inflammatory pseudotumor of the liver: 13 cases of MRI findings显示文摘INTRODUCTIONInflammatory pseudotumor of the liver ,a rare benign lesion ,is often confused with the malignant tumors .Until 1998,less than 80 cases had been reported in the world [1,2].The accuracy of the pre-surgical diagnosis was low p[3,4] ,and very few materials on the diagnosis using dynamic MRI were reported [5-7] .We collected thirteen cases of inflammatory pseudotumor of the liver were collected and roved by pathology with MRI studies .Our purpose is to describe and analyze the MRI findings of this lesion and find out the valuable signs suggesting the diagnosis so as to avoid unnecessary operations. | Fu Hua Yan Kang Rong Zhou Ya Ping Jiang Wei Bin Shi Department of Radiology,Zhongshan Hospital,Medical Center of Fudan University (Former Shanghai Medical University),180 Fenglin Road,Shanghai 200032,ChinaDr.Fu Hua Yan graduated from Shanghai Medical University as a postgraduate in 1996,now an associated professor,a radiologist in chief specialized in the diagnosis of CT and MRI in hepatic diseases,having 22 papers published.She is the associated editor of the books Spiral CT and Body MRI. | 2001 | World Journal of Gastroenterology2001,7,3: | 8 |