|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Distribution of wall shear stress in carotid plaques using magnetic resonance imaging and computational fluid dynamics analysis: a preliminary study显示文摘背景墙砍应力是在动脉粥样硬化患者匾的 destabilization 的一个重要因素。这研究的目的是估计墙的分发砍在使用高分辨率的先进颈动脉匾强调磁性的回声成像和计算液体 dynamics.Methods 八 diseased 在七个病人的内部颈动脉动脉被评估。高分辨率磁性的回声成像被用来设想匾结构,并且在匾的技工压力被把脉管的成像 processing 以后与计算液体 dynamics.Results 墙相结合获得砍在在所有情况中的匾的压力比在控制的那些高组。最大砍在匾的压力在匾的匾山,以及肩膀的顶被观察。在他们之中,最大砍在破裂的匾的应力在二种情况中在三种情况中并且在含纤维的帽子的肩膀在破裂地点被观察。最大砍应力也在石灰化的区域被看见在血栓区域并且在在另外的三个盒子中的匾的最厚的区域, respectively.Conclusion 决心最大砍在匾的应力可能为预言匾的破裂地点是有用的并且可以在估计匾危险起一个重要作用。 | JING Li-na GAO Pei-yi LIN Yan SUI Bin-bin QIN Hai-qiang MA Li XUE Jing | 2011 | Chinese Medical Journal2011,,10: | 10 |
| 2 | Mortality outcomes of low-dose computed tomography screening for lung cancer in urban China:a decision analysis and implications for practice显示文摘Background: Mortality outcomes in trials of low-dose computed tomography(CT) screening for lung cancer are inconsistent. This study aimed to evaluate whether CT screening in urban areas of China could reduce lung cancer mortality and to investigate the factors that associate with the screening effect.Methods: A decision tree model with three scenarios(low-dose CT screening, chest X-ray screening, and no screening) was developed to compare screening results in a simulated Chinese urban cohort(100,000 smokers aged45-80 years). Data of participant characteristics were obtained from national registries and epidemiological surveys for estimating lung cancer prevalence. The selection of other tree variables such as sensitivities and specificities of low-dose CT and chest X-ray screening were based on literature research. Differences in lung cancer mortality(primary outcome), false diagnoses, and deaths due to false diagnosis were calculated. Sensitivity analyses were performed to identify the factors that associate with the screening results and to ascertain worst and optimal screening effects considering possible ranges of the variables.Results: Among the 100,000 subjects, there were 448,541, and 591 lung cancer deaths in the low-dose CT, chest X-ray, and no screening scenarios, respectively(17.2% reduction in low-dose CT screening over chest X-ray screening and 24.2% over no screening). The costs of the two screening scenarios were 9387 and 2497 false diagnoses and 7and 2 deaths due to false diagnosis among the 100,000 persons, respectively. The factors that most influenced death reduction with low-dose CT screening over no screening were lung cancer prevalence in the screened cohort, lowdose CT sensitivity, and proportion of early-stage cancers among low-dose CT detected lung cancers. Considering all possibilities, reduction in deaths(relative numbers) with low-dose CT screening in the worst and optimal cases were16(5.4%) and 288(40.2%) over no screening, respectively.Conclusions: In terms of mortality outcomes, our findings favor conducting low-dose CT screening in urban China.However, approaches to reducing false diagnoses and optimizing important screening conditions such as enrollment criteria for screening are highly needed. | Zixing Wang Wei Han Weiwei Zhang Fang Xue Yuyan Wang Yaoda Hu Lei Wang Chunwu Zhou Yao Huang Shijun Zhao Wei Song Xin Sui Ruihong Shi Jingmei Jiang | 2017 | Chinese Journal of Cancer2017,36,8: | 9 |
| 3 | Preparation of multi-walled carbon nanotube-reinforced TiNi matrix composites from elemental powders by spark plasma sintering显示文摘Carbon nanotube (CNT)-reinforced TiNi matrix composites were synthesized by spark plasma sintering (SPS) employing elemental powders.The phase structure,morphology and transformation behaviors were studied.It was found that thermoelastic martensitic transformation be-haviors could be observed from the samples sintered above 800 ℃ even with a short sintering time (5min),and the transformation tempera-tures gradually increased with increasing sintering temperature because of more Ti-rich TiNi phase formation.Although decreasing the sin-tering temperature and time to 700 ℃ and 5min could not protect defective MWCNTs from reacting with Ti,still-perfect MWCNTs re-mained in the specimens sintered at 900 ℃.This method is expected to supply a basis for preparing CNT-reinforced TiNi composites. | CAI Wei,FENG Xue,and SUI Jiehe National Key Laboratory Precision Hot Processing of Metals,School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China | 2012 | Rare Metals2012,31,1: | 7 |
| 4 | Spectrum-Effect Relationship Between High Performance Liquid Chromatography Fingerprints and Anticoccidial Activities of a Compound Chinese Medicine显示文摘Quality control and screening of active substances in traditional Chinese medicines have been performed using fi ngerprint analysis. The spectrum-effect relationship between chromatography fi ngerprints and effi cacy of herbal drugs is considered as a potentially useful method for determining active ingredients in complex mixtures. The study was designed to develop a method for determining the bioactive components of a compound Chinese medicine called Tiefeng based on spectrum-effect relationships between high-performance liquid chromatography(HPLC) fi ngerprints and anticoccidial activities. Four peaks of the established HPLC fi ngerprint indicate the main bioactive components of this medicine. In addition, pharmacodynamic atlas was defi ned and used to assess the anticoccidial activity of Tiefeng from different sources for the fi rst time. We found that the level of anticoccidial activity of Tiefeng was consistent with the degree of similarity between the pharmacodynamic atlas and chromatogram of any sample. Furthermore, effect of this medicine was related with the main active constituents, along with the origin and the harvesting time. | XIAO Sui FEI Chen-zhong ZHANG Li-fang ZHENG Wen-li ZHANG Ke-yu XUE Fei-qun | 2014 | Journal of Integrative Agriculture2014,13,5: | 5 |
| 5 | The efficacy and safety of nimodipine in acute ischemic stroke patients with mild cognitive impairment: a double-blind, randomized,placebo-controlled trial显示文摘Nimodipine might be effective in subcortical vascular dementia(VaD). Its benefit in preventing further cognitive decline in patients with acute ischemic stroke(AIS) and vascular mild cognitive impairment(VaMCI) remains to be established. In this multicenter, double-blind trial, we randomly assigned 654 eligible patients to nimodipine 30 mg three times a day or placebo. The primary outcome was any cognitive decline defined by the changes on the Mini-Mental State Examination(DMMSE à3) or vascular AD assessment scale cognitive subscale(DADAS-cog ! 4) at 6 months. Secondary outcomes included any distribution shift of DADAS-cog, DMMSE or cognitive improvement defined by DADAS-cog à2, or DMMSE ! 0. The primary outcome in the nimodipine group and placebo group were similar for DMMSE à3(4.18% and 7.22%, respectively, P = 0.15) and DADAS-cog ! 4(8.36% and 8.93% respectively,P = 0.88). The distribution shift of DADAS-cog and DMMSE differed significantly between the two groups(P = 0.03 and P = 0.05 respectively). Cognitive improvement occurred in 55.4% in the nimodipine group and 43.6% in the placebo group measured by DADAS-cog à2(Odds Ratio, 1.54; 95% confidence interval[CI] 1.10–2.14, P < 0.01) or 84.0% and 74.6% respectively by DMMSE ! 0(Odds Ratio, 1.79; 95% CI 1.18–2.70, P < 0.01). Nimodipine was associated with better cognitive function in the memory domain. The adverse events rate was similar in two groups. This study is registered with ClinicalTrials.gov,NCT01220622. Nimodipine did not show benefit to prevent cognitive decline in AIS patients with VaMCI, but improved cognition moderately, especially measured in the memory domain. | Huaguang Zheng Yilong Wang Anxin Wang Hao Li David Wang Xingquan Zhao Penglian Wang Haipeng Shen Lijun Zuo Yuesong Pan Zixiao Li Xia Meng Xianwei Wang Weixiong Shi Yi Ju Liping Liu Kehui Dong Chunxue Wang Rubo Sui Rong Xue Xiaoping Pan Xiaoyua Niu Benyan Luo Yi Sui Huali Wang Tao Feng Yongjun Wang | 2019 | Science Bulletin2019,64,2: | 5 |
| 6 | Cell cycle-related kinase reprograms the liver immune microenvironment to promote cancer metastasis显示文摘The liver is an immunologically tolerant organ and a common metastatic site of multiple cancer types.Although a role for cancer cell invasion programs has been well characterized,whether and how liver-intrinsic factors drive metastatic spread is incompletely understood.Here,we show that aberrantly activated hepatocyte-intrinsic cell cycle-related kinase(CCRK)signaling in chronic liver diseases is critical for cancer metastasis by reprogramming an immunosuppressive microenvironment.Using an inducible liverspecific transgenic model,we found that CCRK overexpression dramatically increased both B16F10 melanoma and MC38 colorectal cancer(CRC)metastasis to the liver,which was highly infiltrated by polymorphonuclear-myeloid-derived suppressor cells(PMNMDSCs)and lacking natural killer T(NKT)cells.Depletion of PMN-MDSCs in CCRK transgenic mice restored NKT cell levels and their interferon gamma production and reduced liver metastasis to 2.7% and 0.7%(metastatic tumor weights)in the melanoma and CRC models,respectively.Mechanistically,CCRK activated nuclear factor-kappa B(NF-κB)signaling to increase the PMN-MDSC trafficking chemokine C-X-C motif ligand 1(CXCL1),which was positively correlated with liver-infiltrating PMN-MDSC levels in CCRK transgenic mice.Accordingly,CRC liver metastasis patients exhibited hyperaaivation of hepatic CCRK/NF-κB/CXCL1 signaling,which was associated with accumulation of PMN-MDSCs and paucity of NKT cells compared to healthy liver transplantation donors.In summary,this study demonstrates that immunosuppressive reprogramming by hepatic CCRK signaling undermines antimetastatic immunosurveillance.Our findings offer new mechanistic insights and therapeutic targets for liver metastasis intervention. | Xuezhen Zeng Jingying Zhou Zhewen Xiong Hanyong Sun Weiqin Yang Myth T.S.Mok Jing Wang Jingqing Li Man Liu Wenshu Tang Yu Feng Hector Kwong-Sang W ang Shun-Wa Tsang King-Lau Chow Philip Chun Yeung John Wong Paul Bo-San Lai Anthony Wing-Hung Chan Ka Fai To Stephen Lam Chan Qiang Xia Jing Xue Xiao Chen Jun Yu Sui Peng Joseph Jao-Yiu Sung Ming Kuang Alfred Sze-Lok Cheng | 2021 | Cellular & Molecular Immunology2021,18,4: | 5 |
| 7 | 3D building modeling,organization and application in digital city system显示文摘The real world is a three-dimensional(3D)space requiring that 3D geospatial information applications be developed in alignment with the observer’s visual and perceptive habits.Particularly,3D building model data are required in a wide range of areas such as urban planning,environmental protection,real estate management and emergency response.At the same time,the development of Web service[LU1]technologies allows the possibility of the widely distributed 3D geospatial data on the web.3D city building model with its related information is an important part in the construction of a digital city system,and has become a staple resource on the web nowadays.In view of the hierarchical representation of a 3D building model,an abstract of a 3D building model based on structure details is studied,and a novel representation approach named 3D transparent building hierarchical model is presented in this paper.This approach fully uses both the existing 3D modeling technologies and CAD constructing mapping data.By the spatial relationship description,structural components inside a building can be represented and integrated as hierarchical models in a unified 3D space.In addition,based on the characteristics of the 3D building model data,a service-oriented architecture and Web service technologies for 3D city building models are discussed.The aim of the approach is that 3D city building models can be used as a kind of data resource service on the web,and can also exist independently in various different web applications. | YANG Xue 1,WENG JingNong 1,2,XIA YuBin 2,WU Lun 3 & SUI ZhengWei 3 1 College of Software,Beihang University,Beijing 100191,China 2 College of Computer,Beihang University,Beijing 100191,China 3 Institute of Remote Sensing and GIS,Peking University,Beijing 100871,China | 2010 | Science China(Technological Sciences)2010,53,S1: | 4 |
| 8 | Analysis of expressed sequence tags of a marine red alga,Gracilaria lemaneiformis显示文摘The expressed sequence tags (EST) has been proved to be a useful tool for discovering and identifying functional genes, especially in some species whose genetic information is unavailable. A total of 180 ESTs have been generated from a cDNA library of gametophytic Gracilaria lemaneiformis in this study. These clones are clustered into 151 groups, among which 8 groups are highly homologous to chloroplast genes and are abundant in the library. After searching for matches in the EST database of red alga, 22 groups are found to match with the registered ESTs of Rhodophyta and 6 with Gracilaria. Searching in the protein database reveal that 73 non-redundant clones have significant similarity to some known sequences, the majority of which are involved in photosynthesis, DNA transcription or translation, and 6, 4 and 3 clones are associated with growth or development, signal transduction and stress or defense response, respectively. | SUN Xue, YANG Guanpin, MAO Yunxiang, ZHANG Xuecheng, SUI Zhenghong and QIN Song(1. College of Marine Life Sciences, Ocean University of Qingdao, Qingdao 266003, China 2. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China) | 2002 | Progress in Natural Science:Materials International2002,12,7: | 4 |
| 9 | Identification of Phase and Sex-related ISSR Markers of Red Alga Gracilaria lemaneiformis显示文摘六份 ISSR 教材被采用显示不同阶段的多型性和红水藻 Gracilaria lemaneiformis 的性,并且他们中的二个, P1 和 P3,放大不同乐队模式。女配偶体的教材 P1 放大的 ISSR 模式与那 oftetrasporophyte 相同,但是从男配偶体的不同。教材 P3 生产的乐队,一个人对女配偶体特定。三片词法上类似的复叶能容易用 ISSR 技术被识别。二个特定的标记, SM1 andSF3 与男配偶体和女配偶体有关,被克隆并且定序。SM1 的相应序列被发现编码假想蛋白质。没有能在 GenBank 被发现的 SF3 的相应顺序。 | SUN Xue ZHANG Xuecheng MAO Yunxiang SUI Zhenghong QIN Song | 2006 | Journal of Ocean University of China2006,5,1: | 4 |
| 10 | 中国城市人群低剂量计算机断层扫描筛查肺癌的死亡率结果:决策分析和实践意义显示文摘背景与目的不同低剂量计算机断层扫描(computed tomography,CT)筛查肺癌试验得出的死亡率结果不一致。本研究旨在评价中国城市CT筛查是否能够降低肺癌死亡率,并探讨影响筛查效果的因素。方法建立了3种场景(低剂量CT筛查、胸部X线筛查和无筛查)的决策树模型来比较模拟的中国城市人群(100,000例年龄45–80岁的吸烟者)的筛查结果。从国家登记和流行病学调查中获得了参与者特征数据并估算了肺癌患病比例。根据文献调研选择了低剂量CT和胸部X线筛查的灵敏度和特异度等其他树变量。计算了3种筛查方法间肺癌死亡率(主要结局)、误诊和误诊导致死亡的差异。通过敏感性分析找出了与筛查结果相关的因素,并确定了在变量可能范围内的最差和最优筛查效果。结果 100,000例研究对象中,低剂量CT、胸部X线和无筛查场景分别有448例、541例和591例肺癌死亡(低剂量CT筛查比胸部X线筛查死亡人数减少17.2%,比无筛查减少24.2%)。100,000例研究对象中,2种筛查场景的代价分别为9387例和2497例误诊及7例和2例误诊导致的死亡。低剂量CT筛查比无筛查的死亡数降低,影响最大的因素是筛查人群的肺癌患病比例、低剂量CT的灵敏度和低剂量CT检出肺癌中早期癌的比例。综合了所有可能性,低剂量CT筛查肺癌的死亡人数(相对数)在最坏和最好情况下分别比无筛查降低了16例(5.4%)和288例(40.2%)。结论就死亡率结局而言,我们的研究结果支持在中国城市人群中进行低剂量CT筛查。然而,急需策略来减少误诊和优化纳入标准等重要筛查条件。 | Zixing Wang Wei Han Weiwei Zhang Fang Xue Yuyan Wang Yaoda Hu Lei Wang Chunwu Zhou Yao Huang Shijun Zhao Wei Song Xin Sui Ruihong Shi Jingmei Jiang | 2018 | 癌症2018,37,8: | 3 |
| 11 | Characteristics of Long-term Nonprogressors and Viremia Controllers Infected with HIV-1 via Contaminated Blood Donations or Transfusions Conducted 20 Years Earlier显示文摘To characterize long‐term nonprogressors(LTNPs)and viremia controllers(VCs),infected with HIV‐1 through contaminated blood donation or transfusion between 1992 and 1996 in Henan,China.LTNPs and VCs were defined by CD4+T lymphocyte(CD4)count and viral load(VL).Of29,294 patients infected with HIV‐1 via contaminated blood donation or transfusion that had conducted for more than 20 years,92 were LTNPs/VCs.There were 70 LTNPs(0.24%),43 | LIU Jia FAN Pan Ying XUE Xiu Juan YAN Jiang Zhou SUN Guo Qing LIU Chun Hua TIAN Sui An LI Ning SUN Ding Yong ZHU Qian WANG Zhe | 2017 | Biomedical and Environmental Sciences2017,30,12: | 3 |
| 12 | Defective Ni_(3)S_(2)nanowires as highly active electrocatalysts for ethanol oxidative upgrading显示文摘Electrochemical upgrading of biomass ethanol to value-added chemicals is promising for sustainable society.Here,we synthesize defective Ni_(3)S_(2) nanowires(NWs),which show high activity towards electrochemical oxidation of ethanol to acetate.The Ni_(3)S_(2) NWs are formed by the oriented attachment mechanism,and rich defects are introduced during the growth.A low onset potential of 1.31 V and high mass activity of 8,716 mA·mgNi^(-1) at 1.5 V are achieved using the synthesized Ni_(3)S_(2) NWs toward the ethanol electro-oxidation,which are better than the Ni(OH)2 NWs and the Ni_(3)S_(2) nanoparticles(NPs).And the selectivity for the acetate generation is ca.99%.The high activity of Ni_(3)S_(2) NWs is attributed to the easier oxidation of Ni(II)to the catalytically active Ni(III)species with the promotion from S component and rich defects.These results demonstrate that the defective NWs can be synthesized by the oriented attachment method and the defective Ni_(3)S_(2) NWs structure as the efficient nonnoble metal electrocatalysts for oxidative upgrading of ethanol. | Yufeng Zhang Wei Zhu Jinjie Fang Zhiyuan Xu Yanrong Xue Di Liu Rui Sui Qingqing Lv Xuerui Liu Yongsheng Wang Wei Chen Zhongbin Zhuang | 2022 | Nano Research2022,15,4: | 2 |
| 13 | Petrogenesis of Early Carboniferous Ultramafic-Mafic Volcanic Rocks in the Southern Changning-Menglian Belt,Southeastern Tibetan Plateau:Implications for the Evolution of the Paleo-Tethyan Ocean显示文摘The Changning-Menglian Belt represents the main Paleo-Tethyan Suture in the southeastern Tibetan Plateau,which divides Gondwana-and Eurasia-derived continental fragments from each other.The belt contains ultramafic-mafic volcanic rocks that provide evidence of the tectonic processes which operated during the evolution of the Paleo-Tethyan Ocean.New geochemical data for Early Carboniferous volcanics in the southern Changning-Menglian Belt show that wehrlites have cumulate and poikilitic textures,and contain low-Fo(84.2-87.2)olivine,clinopyroxene with low Mg#values(79.4-85.6),and spinel with high Cr#values(67.8-72.4).Estimated equilibrium temperatures obtained using olivine-spinel Fe-Mg exchange geothermometry range from 978℃ to 1373℃(mean=1205℃;n=3).These observations combined with a lack of reaction or melt impregnation textures indicate that these units represent magmatic cumulates rather than having formed as a result of mantle-melt reactions.Both wehrlites and basalts in the belt have subparallel rare earth element(REE)-and primitive-mantle-normalized multi-element patterns with slightly positive Nb-Ta anomalies,but negligible Eu and Zr-Hf anomalies.The volcanics have similar Sr-Nd-Pb isotopic compositions withεNd(t)values of 4.2-4.5(mean=4.3;n=3)and 4.0-4.4(mean 4.2;n=4),respectively,and also have similar immobile element ratios,such as Nb/La,Nb/U,Th/La,Zr/Nb,Th/Ta,La/Yb,Nb/Th,Nb/Y,and Zr/Y.These characteristics indicate both units have ocean island basalt(OIB)-like geochemical affinities,consistent with the fact that the clinopyroxene in the wehrlites is compositionally similar to OIB-related cumulus clinopyroxene.This suggests that both the wehrlites and basalts were derived from similar parental magmas that underwent generally closed-system magmatic differentiation dominated by fractionation of the olivine and clinopyroxene.This parental magma was likely generated in an oceanic seamount setting from an OIB-type mantle source(i.e.,asthenospheric mantle)containing garnet-spinel lherzolite material.Combing this new data with that from oceanic seamount volcano-sedimentary suites derived from previous research enables the identification of a mature late Paleozoic ocean basin between the passive northeastern Gondwanan margin and the northward-migrating microcontinent of Lanping-Simao. | XIE Zhipeng WU Xuelu WANG Tengfei XUE Chuandong YANG Tiannan WANG Wei SUI Binxi XIN Di | 2022 | Acta Geologica Sinica(English Edition)2022,96,3: | 2 |
| 14 | Electron-phonon coupling-assisted universal red luminescence of o-phenylenediamine-based carbon dots显示文摘Due to the complex core-shell structure and variety of surface functional groups,the photoluminescence(PL)mechanism of carbon dots(CDs)remain unclear.o-Phenylenediamine(oPD),as one of the most common precursors for preparing red emissive CDs,has been extensively studied.Interestingly,most of the red emission CDs based on oPD have similar PL emission characteristics.Herein,we prepared six different oPD-based CDs and found that they had almost the same PL emission and absorption spectra after purifiication.Structural and spectral characterization indicated that they had similar carbon core structures but diffferent surface polymer shells.Furthermore,single-molecule PL spectroscopy confirmed that the multi-modal emission of those CDs originated from the transitions of different vibrational energy levels of the same PL center in the carbon core.In addition,the phenomenon of'spectral splitting'of single-particle CDs was observed at low temperature,which confirmed these oPD-based CDs were unique materials with properties of both organic molecules and quantum dots.Finally,theoretical calculations revealed their potential polymerization mode and carbon core structure.Moreover,we proposed the PL mechanism of red-emitting CDs based on oPD precursors;that is,the carbon core regulates the PL emission,and the polymer shell regulates the PL intensity.Our work resolves the controversy on the PL mechanism of oPD-based red CDs.These findings provide a general guide for the mechanism exploration and structural analysis of other types of CDs. | Boyang Wang Zhihong Wei Laizhi Sui Jingkun Yu Baowei Zhang Xiaoyong Wang Shengnan Feng Haoqiang Song Xue Yong Yuxi Tian Bai Yang Siyu Lu | 2022 | Light(Science & Applications)2022,11,7: | 2 |
| 15 | Optimized operation of cascade reservoirs on Wujiang River during 2009-2010 drought in southwest China显示文摘The effects of optimized operation principles implemented at reservoirs on the Wujiang River in southwest China between September 2009 and April 2010 under drought conditions were analyzed based on operational data collected from the Guizhou Wujiang Hydropower Development Co., Ltd. A set of linear regression equations was developed to identify the key factors impacting the electric power generation at reservoirs. A 59% reduction in the inflow discharge at the Hongjiadu Reservoir led to a decrease of only 38% in the total electric power generation at the Hongjiadu, Dongfeng, Suofengying, and Wujiangdu reservoirs on the Wujiang River, indicating that optimized operation can play an important role in drought management. The water level and the amount of other water inputs at the Hongjiadu Reservoir and the outflow discharge at all of the reservoirs except the Wujiangdu Reservoir were key factors affecting the total electric power generation at reservoirs on the Wujiang River under optimized operation. | Xin SUI Sai-nan WU Wen-gen LIAO Lan JIA Tian-tian JIN Xue ZHANG | 2013 | Water Science and Engineering2013,6,3: | 2 |
| 16 | The spatiotemporal changes of marshland and the driving forces in the Sanjiang Plain, Northeast China from 1980 to 2016显示文摘Background:Wetland loss is a global concern due to its enormous ecosystem services.Marshland,a typical natural wetland,which is concentrated in the Sanjiang Plain,has undergone dramatic loss in the last several decades.The spatiotemporal changes in marshland were studied based on Landsat images of the Sanjiang Plain from 1980 to 2016 with the land use maps in 1980,1995,2000,2005,2010,and 2016 using land use dynamic degree and landscape indices.The driving forces of marshland loss,including biophysical factors,socio-economic factors,and land management,were analyzed with boosted regression trees(BRTs)methods.Results:The area of marshland loss was 7372 km^(2),which accounted for 65.7%of the area of marshland in 1980;however,the paddy field area was expanded by 22,313 km^(2).The lost marshland was mainly converted to dry farmland(47.5%)and paddy field(47.2%)during 1980-2016.Both the landscape pattern of the study area and marshland became increasingly fragmented.The relatively important factors responsible for marshland loss were biophysical factors,socio-economic factors,and land management,which accounted for 65.2%,25.5%,and 8.4%,respectively.The most important driving forces with high“relative influence”were“distance to river,”which accounted for 20.6%of the total variance explained.The“relative influence”of potential crop yield and ditch density reached 20.2%and 8.4%,respectively.Conclusion:Significant land use changes have occurred in the Sanjiang Plain over the past 37 years,with characteristics of rapid paddy field expansion and drastic marshland loss.Meanwhile,marshland fragmentation continued to increase.Reclamation was the main reason for the large-scale marshland loss.Biophysical factors influenced the decisions regarding the locations of marshland loss.Moreover,climate factors(i.e.,average annual precipitation and average annual temperature)also played an important role in marshland loss.These results can provide helpful knowledge for understanding the patterns and reasons for marshland loss and protecting and managing strategies for wetlands restoration. | Zhen Li Miao Liu Yuanman Hu Zhenshan Xue Jinling Sui | 2020 | Ecological Processes2020,9,1: | 2 |
| 17 | Phase Boundary Mapping in ZrNiSn Half-Heusler for Enhanced Thermoelectric Performance显示文摘The solubility range of interstitial Ni in the ZrNi1+xSn half-Heusler phase is a controversial issue,but it has an impact on the thermoelectric properties.In this study,two isothermal section phase diagrams of the Zr-Ni-Sn ternary system at 973K and 1173 K were experimentally constructed based on the binary phase diagrams of Zr-Ni,Zr-Sn,and Ni-Sn.The thermodynamic equilibrium phases were obtained after a long time of heating treatment on the raw alloys prepared by levitation melting.Solubilities of x<0:07 at 973 K and x<0:13 at 1173 K were clearly indicated.An intermediate-Heusler phase with a partly filled Ni void was observed,which is believed to be beneficial to the lowered lattice thermal conductivity.The highest ZT value~0:71 at 973 K was obtained for ZrNi_(1.11)Sn_(1.04).The phase boundary mapping provides an important instruction for the further optimization of ZrNiSn-based materials and other systems. | Xiaofang Li Pengbo Yang Yumei Wang Zongwei Zhang Dandan Qin Wenhua Xue Chen Chen Yifang Huang Xiaodong Xie Xinyu Wang Mujin Yang Cuiping Wang Feng Cao Jiehe Sui Xingjun Liu Qian Zhang | 2020 | Research2020,,1: | 2 |
| 18 | The association of interleukin-16 gene polymorphisms with IL-16 serum levels and risk of nasopharyngeal carcinoma in a Chinese population显示文摘 | Xue Qin Qiliu Peng Xiaoxia Lao Zhiping Chen Yu Lu Xianjun Lao Cuiju Mo Jingzhe Sui Junrong Wu Limin Zhai Shi Yang Shan Li Jinmin Zhao | 2014 | Tumor Biology2014,,3: | 2 |
| 19 | Cloning, Sequencing and Phylogenetic Study of rbcL Gene from Cyanobacteria Arthrospira and Spirulina显示文摘Large subunit gene of rubisco (rbcL) of cyanobacteria Arthrospira platensis FACHB341, A. Platensis FACHB439, A. Maxima OUQDSM and Spirulina sp. FACHB440 is cloned, sequenced and characterized. Results show that GC content of the gene in strain Spirulina sp. FACHB440 is higher than that in the others. The alignments based on deduced amino acid sequences indicate that Spirulina sp. FACHB440 is different from that in other three samples of Arthrospira, though they have the same conserved functional sites (95, 98, 121, 124, 221, 257). The nucleotide sequence similarity among the three strains of the genus of Arthrospira (96.5~99.6%) is higher than that between Arthrospira and Spirulina (78.1~78.5%). By comparison of the corresponding sequence of other cyanobacteria, a phylogenetic tree with two clusters is constructed. A. Platensis FACHB341, A. Maxima OUQDSM and A. Platensis FACHB439 form the monophyletic linage, which is fully supported by bootstrap values (1000), while Spirulina sp. FACHB440 and Anabaena sp. PCC7120 cluster in another linage with the bootstrap value of 909. | 刘金姐 Zhang Xuecheng Sui Zhenghong Mao Yunxiang SUN Xue | 2004 | High Technology Letters2004,10,1: | 2 |
| 20 | Wettability and interfacial reaction of alumina and zirconia by reactive silver-indium base alloy at mid-temperature显示文摘 | Wang J T Sui Z T | 1993 | J Mater Sci1993,28,: | 1 |