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| 1 | China's wetland change (1990-2000) determined by remote sensing显示文摘Two wetland maps for the entire China have been produced based on Landsat data acquired around 1990 and 2000. Wetlands in China have been divided into 3 broad categories with 15 sub-categories except rice fields. In 1990, the total wetland area in China was 355208 km2 whereas in 2000 it dropped to 304849 km2 with a net loss of 50360 km2. During an approximate 10-year period, inland wetland reduced from 318326 to 257922 km2, coastal wetland dropped from 14335 to 12015 km2, while artificial wetland increased from 22546 to 34911 km2. The greatest natural wetland loss occurred in Heilongjiang, Inner Mon- golia, and Jilin with a total loss of over 57000 km2 of wetland. In western China, over 13000 km2 of wetlands were newly formed in Xinjiang, Tibet, and Qinghai. About 12000 km2 of artificial wetlands were also added for fish farm and reservoir constructions. The newly formed wetlands in western China were caused primarily by climate warming over that region whereas the newly created artificial wetlands were caused by economic developments. China’s wetland loss is caused mainly by human activities. | Peng Gong ZhenGuo Niu Xiao Cheng KuiYi Zhao DeMin Zhou JianHong Guo Lu Liang XiaoFeng Wang DanDan Li HuaBing Huang et al. | 2010 | Science China Earth Sciences2010，53，7： | 28 |
| 2 | Comparative Analysis of JmjC Domain-containing Proteins Reveals the Potential Histone Demethylases in Arabidopsis and Rice显示文摘Histone methylation homeostasis is achieved by controlling the balance between methylation and demethylation to maintain chromatin function and developmental regulation. In animals, a conserved Jumonji C (JmjC) domain was found in a large group of histone demethylases. However, it is still unclear whether plants also contain the JmjC domaincontaining active histone demethylases. Here we performed genome-wide screen and phylogenetic analysis of JmjC domain-containing proteins in the dicot plant, Arabidopsis, and monocot plant rice, and found 21 and 20 JmjC domaincontaining, respectively. We also examined the expression of JmjC domain-containing proteins and compared them to human JmjC counterparts for potential enzymatic activity. The spatial expression patterns of the Arabidopsis JmjC domaincontaining genes revealed that they are all actively transcribed genes. These active plant JmjC domaincontaining genes could possibly function in epigenetic regulation to antagonize the activity of the large number of putative SET domaincontaining histone methyltransferase activity to dynamically regulate histone methylation homeostasis. | Falong Lu Guanglin Li Xia Cui Chunyan Liu Xiu-Jie Wang Xiaofeng Cao | 2008 | Journal of Integrative Plant Biology2008，50，7： | 24 |
| 3 | 5-Methylcytosine RNA Methylation in Arabidopsis Thaliana显示文摘5-Methylcytosine (m 5 C ) 是描绘得好的 DNA 修正,并且主要也在初核质和优核质在丰富的非编码的 RNA 被报导。然而,分发和 m 5 在植物 mRNAs 的 C 仍然保持大部分未知。这里,我们报导 RNA m 5 在由使用 m 5 C RNA immunoprecipitation 由一条深定序的途径列在后面(m 5 C-RIP-seq ) 。LC-MS/MS 和点污点分析揭示 m 5 在各种各样的纸巾并且在不同发展阶段的 C mRNA 修正。m 5 C-RIP-seq 分析识别了 6045 m 5 在 4465 的 C 山峰在年轻幼苗表示了基因。我们发现那 m 5 C 在编码序列,二座山峰在开始 codons 以后并且在站 codons 前立即定位了被充实,并且随低翻译与 mRNAs 被联系活动。我们进一步表明了那 RNA (cytosine-5 )-methyltransferase,tRNA 特定的 methyltransferase 4B (TRM4B ) ,展览 m 5 C RNA methyltransferase 活动。在 TRM4B 的变化在根开发和减少的 m 5 C 山峰。TRM4B 影响涉及根开发的基因的抄本层次,它断然与他们的 mRNA 稳定性和 m 5 C 层次。我们的结果建议那 m 5 在 mRNA 的 C 是新 epitranscriptome 标记 inArabidopsis,并且这修正的那条规定是基因的不可分的部分规章的网络位于 \O 下面植物开发。 | Xuean Cui Zhe Liang Lisha Shen Qian Zhang Shengjie Bao Yuke Geng Bin Zhang Vonny Leo Leah A. Vardy Tiegang Lu Xiaofeng Gu Hao Yu | 2017 | Molecular Plant2017，10，11： | 19 |
| 4 | N6-Methyladenine DNA Methylation in Japonica and Indica Rice Genomes and Its Association with Gene Expression,Plant Development, and Stress Responses显示文摘N6-Methyladenine (6mA)DNA methylation has recently been implicated as a potential new epigenetic marker in eukaryotes,including the dioot modelArabidopsis thaliana.However,the conservation and divergence of 6mA distribution patterns and functions in plants remain elusive.Here we report high-quality 6mA methylomes at single-nucleotide resolution in rice based on substantially improved genome sequences of two rice cultivars,Nipponbare (Nip;Japonica)and 93-11 (Indica).Analysis of 6mA genomic distribution and its association with transcription suggest that 6mA distribution and function is rather conserved between rice and Arabidopsis.We found that 6mA levels are positively correlated with the expression of key stressrelated genes,which may be responsible for the difference in stress tolerance between Nip and 93-11. Moreover,we showed that mutations in DDM1 cause defects in plant growth and decreased 6mA level. Our results reveal that 6mA is a conserved DNA modification that is positively associated with gene expression and contributes to key agronomic traits in plants. | Qian Zhang Zhe Liang Xuean Cui Changmian Ji Yun Li Pingxian Zhang Jingrong Liu Adeel Riaz Pu Yao Min Liu Yunpeng Wang Tiegang Lu Hao Yu Donglei Yang Hongkun Zheng Xiaofeng Gu | 2018 | Molecular Plant2018，11，12： | 18 |
| 5 | miR-27b inhibits gastric cancer metastasis by targeting NR2F2显示文摘增加的注意在癌症过程集中于 miRNAs 的下面规定。原子受体亚科 2 (NR2F2,也作为 COUP-TFII 知道) 涉及癌症的许多类型的发展,但是它在胃的癌症的角色留下逃犯。在这个实验, oncomine 和 Kaplan-meier 数据库表明 NR2F2 在胃的癌症是起来调整的并且高 NR2F2 表示贡献了差的幸存。MicroRNA-27b 被指向并且由在人的胃的癌症纸巾和房间的 NR2F2 下面调整。miR-27b 的宫外的表示在 vitro 并且在 vivo 禁止了胃的癌症房间增长和肿瘤生长。试金建议 miR-27b 的 overexpression 能支持 MGC-803 房间移植和侵略并且延迟他们的转移到肝。另外, miR-27b 的下面规定在 vitro 提高了 GES-1 房间增长和转移。这些调查结果表明 miR-27b 为改进病人是在胃的癌症和 biomarker 的肿瘤 suppressor 幸存。 | Qingzhao Feng Xionglin Wu Fuchao Li Beibei Ning Xiaofeng Lu Yin Zhang Ying Pan Wenxian Guan | 2017 | Protein & Cell2017，8，2： | 16 |
| 6 | Geographical characteristics of China’s wetlands derived from remotely sensed data显示文摘In this paper, we report the first wetland mapping of the entire China using Landsat enhanced thematic mapper plus (ETM+) data. These data were obtained from the Global Land Cover Facility at the University of Maryland spanning from 1999 to 2002. A total of 597 scenes of Landsat images were georeferenced and mosaiced. Manual image interpretation of satellite images was aided with elevation data, soil data, land cover/land use data and Google Earth. The minimum mapping unit is 10 pixel × 10 pixel, equivalent to 9 ha. The aim of our first round of mapping was only targeted at the boundary delineation of any type of wetland except those wetlands that are under agricultural use (i.e., paddy fields), which has already been well mapped by others. Our interpretation results indicate that a total of 359478 km2 of wetlands are of non-agricultural use. Among our preliminarily mapped wetland, 339353 km2 are inland wetland, 2786 km2 are non-agricultural artificial wetland, and 17609 km2 are coastal wetland. Because low-tide is rarely captured in satellite images, an under-estimation of coastal wetland is inevitable. We conducted some statistics based on our mapped wetlands and compared them with those previously obtained from a number of sources including a land cover/land use map made with satellite images during the late 1990s and early 2000s, a marshland map developed in approximately the same period, survey data of coastal wetland in early 1980s, and area data for approximately 400 larger patches of marshland in China compiled in 1996. Because some inconsistencies exist in the guidelines of those different wetland surveys, difference in area is expected. Some further comparison indicates that the wetland distributions derived from the preliminary wetland map are reasonable and more objective than other sources. The mapping process also indicated that the method adopted by us was efficient and cost-effective. We also found that in order to ensure comparability of the wetland maps developed at different times, a set of standard guidelines on the wetland categories to be mapped, and the mapping methods to be used must be well conceived, developed and effectively employed. We carried out some initial geographical analysis on the distribution of wetlands. | NIU ZhenGuo GONG Peng CHENG Xiao GUO JianHong WANG Lin HUANG HuaBing SHEN ShaoQing WU YunZhao WANG XiaoFeng WANG XianWei YING Qing LIANG Lu ZHANG LiNa WANG Lei YAO Qian YANG ZhenZhong GUO ZiQi DAI YongJiu | 2009 | Science China Earth Sciences2009，52，6： | 15 |
| 7 | The RNA Editing Factor WSP1 Is Essentia for Chloroplast Development in Rice显示文摘尽管在 Arabidopsis thaliana 的质体编辑因素(MORF ) 的多重 organellar RNA 是位于下面 MORF 怎么在另外的种类影响植物开发的广泛地学习的、分子的细节,特别地在米饭,仍然保持大部分未知。这里,我们描述 wsp1 的描述,有白条纹的叶子和圆锥花序的米饭异种。尤其是, wsp1 在出发舞台展出了将近白的不成熟的圆锥花序。传播电子显微镜学分析和叶绿素内容测量揭示了叶绿体在 wsp1 的发展缺点和减少的叶绿素累积。在 Os04g51280 发现一个点变化的 WSP1 的位置的克隆,份额其通常认为的产品高与 MORF 蛋白质定序类似。互补实验证明 WSP1 为 wsp1 的使成杂色的显型负责。WSP1 对叶绿体局部性,在 wsp1 的点变化影响编辑多重 organellar RNA 地点。由于在编辑的质体 RNA 的缺点,叶绿体核糖体生物的续生说并且 ndhA 拼接也在 wsp1 被损害,它可以在出发阶段在叶子和圆锥花序影响正常叶绿体开发。一起,我们的结果在叶绿体开发表明米饭 WSP1 蛋白质的重要性并且在米饭关于 MORF 家庭成员拓宽我们的知识。 | Zhiguo Zhang Xuean Cui Yanwei Wang JinxiaWu Xiaofeng Gu Tiegang Lu | 2017 | Molecular Plant2017，10，1： | 15 |
| 8 | Comparative Analysis of Influence Factors on Arable Land Use Intensity at Farm Household Level:A Case Study Comparing Suyu District of Suqian City and Taixing City,Jiangsu Province,China显示文摘Using data from the farm household survey conducted in 2009,arable land use intensity(ALUI)and its influence factors at farm household level were investigated by the Tobit model.Suyu District of Suqian City and Taixing City of Jiansu Province,China were chosen as the regions for comparison.The results show that:1)On the average, the ALUI,labor intensity,yield-increasing input,and labor-saving input are 15 238.14 yuan(RMB)/ha,192 d/ha, 7233.01 yuan/ha,and 2451.32 yuan/ha in the less economically developed Suyu District,and 13 020.65 yuan/ha,181 d/ha,5871.82 yuan/ha,and 2625.97 yuan/ha in more economically developed Taixing City.The figures indicate that Suyu District has higher ALUI and labor intensity input but lower labor-saving input.2)Comparing all the influence factors,the total arable land area in available and average plot size have bigger effects on arable land intensive use;to a small degree,family′s non-farm income affects labor intensity,yield-increasing input,and labor-saving input;the yield-increasing input decreases significantly when the householder has higher education attainment;the commercialization rates of agricultural products and the planting proportion of cash crops both have unstable influence on ALUI; the share of arable land rented in has few impacts on labor intensity,yield-increasing input,and labor-saving input. 3)There are no differences found in the internal impact mechanism of influence factors on the arable land intensive use behaviors of farm households.However,there are conspicuous disparities in the impact degrees and statistical significance based on varying economic levels.4)Using the results as bases,this study proposes that the government should implement land management and agricultural policies according to local condition.And these policies should decrease land fragmentation to promote scale management of land and arable land use intensification. | LU Xiao HUANG Xianjin ZHONG Taiyang ZHAO Xiaofeng CHEN Yingxue GUO Shuiqiong | 2012 | Chinese Geographical Science2012，22，5： | 14 |
| 9 | JMJ14 is an H3K4 demethylase regulating flowering time in Arabidopsis显示文摘 | Falong Lu Xia Cui Shuaibin, Zhang Chunyan Liu Xiaofeng Cao | 2010 | Cell Research2010，20，3： | 13 |
| 10 | Herbgenomics: A stepping stone for research into herbal medicine显示文摘From the prehistoric era until the publishing of the Compendium of Materia Medica and the first scientific Nobel Prize in the Chinese mainland for Tu's discovery on anti-malarial tablets,each milestone and stepping stone in the developmental history of herbal medicine involved intrepid exploration,bold hypothesis formulation,and cautious verification.After thousands of years of discovery and development,herbal research has entered a new era—the era of herbgenomics.Herbgenomics combines herbal and genomic research,bridging the gap between traditional herbal medicine and cutting-edge omics studies.Therefore,it provides a general picture of the genetic background of traditional herbs,enabling researchers to investigate the mechanisms underlying the prevention and treatment of human diseases from an omics perspective. | Haoyu Hu Xiaofeng Shen Baosheng Liao Lu Luo Jiang Xu Shilin Chen | 2019 | Science China(Life Sciences)2019，62，7： | 13 |
| 11 | Humoral immune response to circulating SARS-CoV-2 variants elicited by inactivated and RBD-subunit vaccines显示文摘SARS-CoV-2 variants could induce immune escape by mutations on the receptor-binding domain(RBD)and N-terminal domain(NTD).Here we report the humoral immune response to circulating SARS-CoV-2 variants,such as 501Y.V2(B.1.351),of the plasma and neutralizing antibodies(NAbs)elicited by CoronaVac(inactivated vaccine),ZF2001(RBD-subunit vaccine)and natural infection.Among 86 potent NAbs identified by high-throughput single-cell VDJ sequencing of peripheral blood mononuclear cells from vaccinees and convalescents,near half anti-RBD NAbs showed major neutralization reductions against the K417N/E484K/N501Y mutation combination,with E484K being the dominant cause.VH3-53/VH3-66 recurrent antibodies respond differently to RBD variants,and K417N compromises the majority of neutralizing activity through reduced polar contacts with complementarity determining regions.In contrast,the 242–244 deletion(242–244Δ)would abolish most neutralization activity of anti-NTD NAbs by interrupting the conformation of NTD antigenic supersite,indicating a much less diversity of anti-NTD NAbs than anti-RBD NAbs.Plasma of convalescents and CoronaVac vaccinees displayed comparable neutralization reductions against pseudo-and authentic 501Y.V2 variants,mainly caused by E484K/N501Y and 242–244Δ,with the effects being additive.Importantly,RBD-subunit vaccinees exhibit markedly higher tolerance to 501Y.V2 than convalescents,since the elicited anti-RBD NAbs display a high diversity and are unaffected by NTD mutations.Moreover,an extended gap between the third and second doses of ZF2001 leads to better neutralizing activity and tolerance to 501Y.V2 than the standard three-dose administration.Together,these results suggest that the deployment of RBD-vaccines,through a third-dose boost,may be ideal for combating SARS-CoV-2 variants when necessary,especially for those carrying mutations that disrupt the NTD supersite. | Yunlong Cao Ayijiang Yisimayi Yali Bai Weijin Huang Xiaofeng Li Zhiying Zhang Tianjiao Yuan Ran An Jing Wang Tianhe Xiao Shuo Du Wenping Ma Liyang Song Yongzheng Li Xiang Li Weiliang Song Jiajing Wu Shuo Liu Xuemei Li Yonghong Zhang Bin Su Xianghua Guo Yangyang Wei Chuanping Gao Nana Zhang Yifei Zhang Yang Dou Xiaoyu Xu Rui Shi Bai Lu Ronghua Jin Yingmin Ma Chengfeng Qin Youchun Wang Yingmei Feng Junyu Xiao Xiaoliang Sunney Xie | 2021 | Cell Research2021，31，7： | 12 |
| 12 | Construction of a host range-expanded hybrid baculovirus of BmNPV and AcNPV, and knockout of cysteinase gene for more efficient expression显示文摘AcNPV (Autographa californica nuclear polyhedrosis virus) and BmNPV(Bombyx mori nuclear polyhedrosis virus) are two principal insect-baculovirus expression systems, each having different characteristics. AcNPV has a wider host range and can infect a series of cell lines thus making it suitable for cell suspension culture expression, but the small size of the host insect, A. californica, makes AcNPV less suitable for large scale protein synthesis. In contrast, BmNPV can only infect the silkworm, Bombyx mori, which is well-known for its easy rearing and large size. These characteristics make the BmNPV system especially suitable for large-scale industrial ex-pression. To utilize the advantages of both AcNPV and BmNPV, we tried to expand their host range through homologous recombination and successfully constructed a hybrid baculovirus of AcNPV and BmNPV, designated as HyNPV. The hybrid baculovirus can infect the hosts of both AcNPV and BmNPV. Taking the human basic fibroblast growth factor (bFGF) gene as an appli-cation example, we constructed a recombinant, HyNPV-bFGF. This construct is able to express the bFGF protein both in silkworm larvae and in common-use cell lines, sf21, sf9 and High-five. Moreover, to reduce the loss of recombinant protein due to degradation by proteases that are simultaneously expressed by the baculovirus, we knocked out the cysteinase gene coding for one of the most important baculovirus proteases. This knockout mutation improves the produc-tion efficiency of the bFGF recombinant protein. | WU Xiaofeng, CAO Cuiping, XU Yaxiang & LU Xingmeng College of Animal Sciences, Zhejiang University, Huajiachi Campus, Hangzhou 310029, China | 2004 | Science China(Life Sciences)2004，47，5： | 12 |
| 13 | Arabidopsis co-chaperonin CPN20 antagonizes Mg-chelatase H subunit to derepress ABA-responsive WRKY40 transcription repressor显示文摘Our previous study demonstrated that a chloroplast co-chaperonin 20(CPN20),one of the interaction partners of the magnesium-protoporphyrin IX chelatase H subunit(CHLH/ABAR),negatively regulates ABA signaling at the same node with ABAR but upstream of WRKY40 transcription repressor in Arabidopsis thaliana.In the present experiment,we showed that ABA directly inhibits the ABAR-CPN20 interaction,and also represses expression of CPN20,which depends on ABAR.CPN20 inhibits ABAR-WRKY40 interaction by competitively binding to ABAR.ABAR downregulates,but CPN20 upregulates,WRKY40 expression.The cpn20-1 mutation induces downregulation of WRKY40,and suppresses the upregulated level of WRKY40 due to the cch mutation in the ABAR gene.ABA-induced repressive effect of the WRKY40 gene is strengthened by downregulation of CPN20 but reduced by upregulation of CPN20.Together with our previously reported genetic data,we provide evidence that CPN20 functions through antagonizing the ABAR-WRKY40 coupled pathway,and ABA relieves this pathway of repression by inhibiting the ABAR-CPN20 interaction to activate ABAR-WRKY40 interaction. | ZHANG XiaoFeng JIANG Tao YU YongTao WU Zhen JIANG ShangChuan LU Kai FENG XiuJing LIANG Shan LU YanFen WANG XiaoFang ZHANG DaPeng | 2014 | Science China(Life Sciences)2014，57，1： | 11 |
| 14 | Modes of Grain Selection in Spiral Selector during Directional Solidification of Nickel-base Superalloys显示文摘The modes of grain selection in spiral selector were investigated by both a ProCAST simulation and experimental confirmation.The results show that the efficiency of grain selection in starter block is associated with the geometry shape.At the early stage of grain selection,the optimization of grain orientation is dominated by competitive grain growth,but the optimization of grain orientation in starter block is gradually dominated by geometry shape at the later stage of grain selection.Besides,the spiral part could also optimize the orientation of the selected single crystal when the initial angle is large enough,and the single crystal selection in spiral parts with different pitch lengths and initial angles is dominated by different modes.The simulation results agree well with experimental ones. | Xiangbin Meng Qi Lu Jinguo Li Tao Jin Xiaofeng Sun Jun Zhang ZhongqiangChen Yanhui Wang Zhuangqi Hu | 2012 | Journal of Materials Science & Technology2012，28，3： | 8 |
| 15 | Research on Pavement Roughness Based on the Laser Triangulation显示文摘人行道粗糙是为估价高速公路建设的最重要的因素之一。在这篇论文,我们选激光为三角测量测量人行道粗糙。激光三角测量的原则和配置被介绍。把技术基于这,道路表面的人行道粗糙被测量。测量结果在这篇论文被给。这个系统的测量范围是 50 m。这种技术的测量错误被分析。这种技术有重要意义在工作量的结束以后估价高速公路的质量。 | Wenxue CHEN Zhibin NI Xinhan HU Xiaofeng LU | 2016 | Photonic Sensors2016，6，2： | 8 |
| 16 | Reversal effect of bufalin on multidrug resistance in K562/VCR vincristine-resistant leukemia cell line显示文摘OBJECTIVE: To probe insights into the reversal effect of bufalin on vincristine-acquired multidrug resistance(MDR) in human leukemia cell line K562/VCR.METHODS: Proliferative inhibition rate and the reversal index(RI) of bufalin were determined by Methyl thiazolyl tetrazolium assay. The uptake of Adriamycin(ADM) in K562/VCR cells, cell cycle and apoptosis rate were determined by flow cytometry(FCM). Cell morphologic changes were observed with Wright-Giemsa staining. The expression of P-glycoprotein(P-gp), multidrug-associated protein-1(MRP1), Bcl-x L and Bax protein were measured by immunocytochemistry.RESULTS: The human leukemia multidrug resistant K562/VCR cells showed no cross-resistance to bufalin. The RIs of bufalin at concentrations of 0.0002,0.001 and 0.005 μmol/L were 4.85, 6.94 and 14.77,respectively. Preincubation of 0.001 μmol/L bufalin for 2 h could increase intracellular ADM fluorescence intensity to 28.07%(P<0.05) and down-regulate MRP1 expression simultaneously, but no remarkable effect was found on P-gp protein. Cell cycle analysis indicated increased apoptosis rate and apparent decreased G2/M phase proportion after treatment with bufalin. When exposed to 0.01μmol/L bufalin, typical morphological changes of apoptosis could be observed. Down-regulation of Bcl-x L and up-regulation of Bax expression in K562/VCR cells could be detected by immunocytochemistry.CONCLUSION: Bufalin could partly reverse the MDR of K562/VCR cells, with a possible mechanism of down-regulating MRP1 expression and activating apoptosis pathway by altering Bcl-x L/Bax ratio. | Xiaofeng Zhai Jianying Lu Ying Wang Fanfu Fang Bai Li Wei Gu | 2014 | Journal of Traditional Chinese Medicine2014，34，6： | 7 |
| 17 | Global methane and nitrous oxide emissions from terrestrial ecosystems due to multiple environmental changes显示文摘Greenhouse gas(GHG)-induced climate change is among the most pressing sustainability challenges facing humanity today,posing serious risks for ecosystem health.Methane(CH_(4))and nitrous oxide(N_(2)O)are the two most important GHGs after carbon dioxide(CO_(2)),but their regional and global budgets are not well known.In this study,we applied a process-based coupled biogeochemical model to concurrently estimate the magnitude and spatial and temporal patterns of CH_(4)and N_(2)O fluxes as driven by multiple environmental changes,including climate variability,rising atmospheric CO_(2),increasing nitrogen deposition,tropospheric ozone pollution,land use change,and nitrogen fertilizer use.The estimated CH_(4)and N_(2)O emissions from global land ecosystems during 1981-2010 were 144.39±12.90 Tg C/yr(mean 62 SE;1 Tg=1012 g)and 12.52±0.74 Tg N/yr,respectively.Our simulations indicated a significant(P,0.01)annually increasing trend for CH_(4)(0.43±0.06 Tg C/yr)and N_(2)O(0.14±0.02 Tg N/yr)in the study period.CH_(4)and N_(2)O emissions increased significantly in most climatic zones and continents,especially in the tropical regions and Asia.The most rapid increase in CH_(4)emission was found in natural wetlands and rice fields due to increased rice cultivation area and climate warming.N_(2)O emission increased substantially in all the biome types and the largest increase occurred in upland crops due to increasing air temperature and nitrogen fertilizer use.Clearly,the three major GHGs(CH_(4),N_(2)O,and CO_(2))should be simultaneously considered when evaluating if a policy is effective to mitigate climate change. | Hanqin Tian Guangsheng Chen Chaoqun Lu Xiaofeng Xu Wei Ren Bowen Zhang Kamaljit Banger Bo Tao Shufen Pan Mingliang Liu Chi Zhang Lori Bruhwiler Steven Wofsy | 2015 | Ecosystem Health and Sustainability2015，1，1： | 7 |
| 18 | Optical observations of LIGO source GW 170817 by the Antarctic Survey Telescopes at Dome A,Antarctica显示文摘The LIGO detection of gravitational waves(GW) from merging black holes in 2015 marked the beginning of a new era in observational astronomy. The detection of an electromagnetic signal from a GW source is the critical next step to explore in detail the physics involved. The Antarctic Survey Telescopes(AST3),located at Dome A, Antarctica, is uniquely situated for rapid response time-domain astronomy with its continuous night-time coverage during the austral winter. We report optical observations of the GW source(GW 170817) in the nearby galaxy NGC 4993 using AST3. The data show a rapidly fading transient at around 1 day after the GW trigger, with the i-band magnitude declining from 17:23 ± 0:13 magnitude to 17:72 ± 0:09 magnitude in ~1:8 h. The brightness and time evolution of the optical transient associated with GW 170817 are broadly consistent with the predictions of models involving merging binary neutron stars. We infer from our data that the merging process ejected about ~10^(-2) solar mass of radioactive material at a speed of up to 30% the speed of light. | lei hu xuefeng wu igor andreoni michael c.b.ashley jeff cooke xiangqun cui fujia du zigao dai bozhong gu yi hu haiping lu xiaoyan li zhengyang li ensi liang liangduan liu bin ma zhaohui shang tianrui sun n.b.suntzeff charling tao syed a.uddin lifan wang xiaofeng wang haikun wen di xiao jin xu ji yang shihai yang xiangyan yuan hongyan zhou hui zhang jilin zhou zonghong zhu | 2017 | Science Bulletin2017，62，21： | 6 |
| 19 | Mechanism of vertical crack formation in Yb_(2)SiO_(5) coatings deposited via plasma spray-physical vapor deposition显示文摘Plasma spray-physical vapor deposition(i.e.,PS-PVD)is a promising method for obtaining advanced environmental barrier coatings(EBCs).The EBCs must meet some requirements in the application,in which the thermal cycle performance affects the service lifetime.The preparation of artificial vertical cracks in Yb_(2)SiO_(5) coatings is an effective approach for meeting the requirements above because vertical cracks provide a strain tolerance.To clarify the formation mechanism of vertical cracks during the PSPVD,the effects of coating thickness and substrate temperature on the formation of vertical cracks were investigated.In addition,the interactions of spray powder and plasma flame during coating deposition were also characterized by optical spectroscopy.It is indicated that vertical cracks are formed due to a thermal expansion mismatch between Yb_(2)SiO_(5) and mullite coating,transient cooling after deposition and the nucleation of evaporated Yb_(2)SiO_(5) as well. | Xiaofeng Zhang Chao Wang Ruijun Ye Chunming Deng Xinghua Liang Ziqian Deng Shaopeng Niu Jinbing Song Guo Liu Min Liu Kesong Zhou Jian Lu Junli Feng | 2020 | Journal of Materiomics2020，6，1： | 6 |
| 20 | Statistical and frequency analysis of the pressure fluctuation in a fluidized bed of non-spherical particles显示文摘In this paper,the pressure fluctuation in a fluidized bed was measured and processed via standard deviation and power spectrum analysis to investigate the dynamic behavior of the transition from the bubbling to turbulent regime.Two types[Geldart B and D) of non-spherical particles,screened from real bed materials,and their mixture were used as the bed materials.The experiments were conducted in a semiindustrial testing apparatus.The experimental results indicated that the fluidization characteristics of the non-spherical Geldart D particles differed from that of the spherical particles at gas velocities beyond the transition velocity U_c.The standard deviation of the pressure fluctuation measured in the bed increased with the gas velocity,while that measured in the plenum remained constant.Compared to the coarse particles,the fine particles exerted a stronger influence on the dynamic behavior of the fluidized bed and promoted the fluidization regime transition from bubbling toward turbulent.The power spectrum of the pressure fluctuation was calculated using the auto-regressive(AR) model;the hydrodynamics of the fluidized bed were characterized by the major frequency of the power spectrum of the pressure fluctuation.By combining the standard deviation analysis,a new method was proposed to determine the transition velocity U_k via the analysis of the change in the major frequency.The first major frequency was observed to vary within the range of 1.5 to 3 Hz. | Honghao He Xiaofeng Lu Wei Shuang Quanhai Wang Yinhu Kang Liyun Yan Xuanyu Ji Guangyu Luo Hai Liu | 2014 | Particuology2014，12，5： | 6 |
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