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| 1 | The effect of land use structure on the distribution of soil nutrients in the hilly area of the Loess Plateau,China显示文摘The irrational land use is one of the main reasons for the soil erosion and nutrient loss in the loess hilly area of China. In this project, 4 types of typical land use structure of sustain ment for about 15 years in the loess hill slope are selected to study the effect of land use structure on the distribution of soil nutrients. From hill bottom to hill top, the patterns of land use types are:, grassland-slope farmland-forest, slope farmland-grassland-forest, terrace-grassland-forest and slope farmland-forest-grassland. By measuring the contents of the total N, total P, available N, available P and organic matter of soils, the results show that the land use structure types of slope farmland-grassland-forest and terrace-grassland-forest have a better capacity to maintain the soil nutrients. | Bojie Fu Keming Ma Huafeng Zhou Liding Chen | 1999 | Chinese Science Bulletin1999，44，8： | 32 |
| 2 | 双相障碍躁狂发作和抑郁发作及维持期药物治疗的证据及应用显示文摘双相障碍因临床表现多样、病程复杂、误漏诊多、治疗困难而受到广泛关注.即使获得正确的诊断和治疗,双相障碍的复发率仍居高不下,往往发展为慢性情感性精神疾病,从而引起患者显著的精神痛苦和功能缺陷.这类慢性精神疾患带来的临床挑战不仅包括对急性轻躁狂/躁狂、双相抑郁和混合发作的及时有效治疗,而且包括对复发的有效预防和功能恢复的全面促进.因此,寻求合适的药物以控制轻躁狂/躁狂和(或)抑郁症状并预防复发,是减少复发率、致残率和病死率的关键环节. | Keming Gao 方芳 Joseph R. Calabrese 汪作为 | 2016 | 中华精神科杂志2016，49，1： | 16 |
| 3 | ELE restrains empty glumes from developing into lemmas显示文摘Although there is evident homology among reproductive organs when comparing Poaceae (grass) and eudicots, the identity of grass specific organs, such as lodicules, palea, lemma, and glumes has been the subject of a vast and largely inconclusive discussion. Here we provide some direct evidence to support the idea that the empty glumes of rice (Oryza sativa) are counterparts of lemmas. We show that the development of empty glumes is regulated by ELE (elongated empty glume), which belongs to a plant specific novel gene family. Mutations at the ELE locus cause elongated empty glumes, which mimic the lemmas and have the epidermal morphology of lemmas with four or five vascular bundles. As a nuclear-localized gene, ELE is specifically expressed at the empty glumes of immature spikelets, and its ectopic expression causes many floral development defects, including lemma-like palea, extra palea-like structures, elongated lodicules, extra stamens and stigmas. Our result suggests that empty glumes are lemmas of the sterile florets located at the lateral side of the rice spikelet, and ELE acts as a regulator restraining its growth to maintain its small size in wild-type plants. | Lilan Hong Qian Qian Keming Zhu Ding Tang Zejun Huang Ling Gao Ming Li Minghong Gu Zhukuan Cheng | 2010 | Journal of Genetics and Genomics2010，37，2： | 11 |
| 4 | Tectonic Evolution of the Middle Frontal Area of the Longmen Mountain Thrust Belt,Western Sichuan Basin,China显示文摘由分析平衡的生气的节和 Longmen 山戳带的沉淀历史,中国,我们断定它经历了五个构造阶段:(1 ) 形成阶段(T 3 x ) Longmen 的缩影,山,早 Indosinian 运动,和 Anxian 构造运动创造了 Longmen 山;(2 ) 稳定的构造阶段(更弱的构造运动导致了 Longmen 山戳带的 J 1) 稍微正在被高举并且稍微减退低岬盆;(3 ) 强烈构造阶段(J2.3 ) ,也就是早 Yanshan 运动;(4 ) 连续构造运动(K-E ) ,也就是迟了的 Yanshan 运动和早喜玛拉雅的运动;并且(5 ) Longmen 山(N-Q ) 的形成,也就是晚喜玛拉雅的运动。在那些构造变丑阶段期间, Anxian 运动和喜玛拉雅的运动在 Longmen 山的形成起了重要作用。喜玛拉雅的运动影响了 Longmen 山大多数;阶层强烈地推进了并且严重地被侵蚀。因为一些越过水坝落下的水被推,在 Longmen 山戳带的中间的部分有某 klippes 在以后向东南构造变丑。 | JIN Wenzheng TANG Liangjie YANG Keming WAN Guimei Lü Zhizhou YU Yixin | 2009 | Acta Geologica Sinica(English Edition)2009，83，1： | 10 |
| 5 | Soil microbial properties under different vegetation types on Mountain Han显示文摘This study investigated the influence of broadleaf and conifer vegetation on soil microbial communities in a distinct vertical distribution belt in Northeast China.Soil samples were taken at 0-5,5-10 and 10-20 cm depths from four vegetation types at different altitudes,which were characterized by poplar(Populus davidiana)(1250-1300 m),poplar(P.davidiana) mixed with birch(Betula platyphylla)(1370-1550 m),birch(B.platyphylla)(1550-1720 m),and larch(Larix principis-rupprechtii)(1840-1890 m).Microbial biomass and community structure were determined using the fumigation-extraction method and phospholipid fatty acid(PLFA) analysis,and soil fungal community level physiological profiles(CLPP) were characterized using Biolog FF Microplates.It was found that soil properties,especially soil organic carbon and water content,contributed significantly to the variations in soil microbes.With increasing soil depth,the soil microbial biomass,fungal biomass,and fungal catabolic ability diminished;however,the ratio of fungi to bacteria increased.The fungal ratio was higher under larch forests compared to that under poplar,birch,and their mixed forests,although the soil microbial biomass was lower.The direct contribution of vegetation types to the soil microbial community variation was 12%.If the indirect contribution through soil organic carbon was included,variations in the vegetation type had substantial influences on soil microbial composition and diversity. | WANG Miao QU LaiYe MA KeMing YUAN Xiu | 2013 | Science China(Life Sciences)2013，56，6： | 10 |
| 6 | Influences of affiliated components and train length on the train wind显示文摘The induced airfl w from passing trains,which is recognized as train wind,usually has adverse impacts on people in the surroundings,i.e.,the aerodynamic forces generated by a high-speed train's wind may act on the human body and endanger the safety of pedestrians or roadside workers.In this paper,an improved delayed detached eddy simulation(IDDES) method is used to study train wind.The effects of the affiliate components and train length on train wind are analyzed.The results indicate that the aff liated components and train length have no effect on train wind in the area in front of the leading nose.In the downstream and wake regions,the longitudinal train wind becomes stronger as the length of the train increases,while the transverse train wind is not affected.The presence of affiliate components strengthens the train wind in the near fiel of the train because of strong fl w solid interactions but has limited effects on train wind in the far | Dilong Guo Keming Shang Ye Zhang Guowei Yang Zhenxu Sun | 2016 | Acta Mechanica Sinica2016，32，2： | 10 |
| 7 | The mechanism of neogambogic acid-induced apoptosis in human MCF-7 cells显示文摘Neogambogic 酸(NGA ) ,在 garcinia 的活跃成分,能在 anticancer 效果禁止一些稳固的肿瘤和结果的生长。我们假设那 NGA 可能为人的乳癌房间线 MCF-7 房间的增长的抑制负责。在 vitro 调查它的 anticancer 机制, MCF-7 房间与 NGA 的各种各样的集中被对待。试金显示出的 MTT (甲基 thiazolyl tetrazolum ) 的结果有 NGA 的那治疗显著地以一种剂量依赖者方式减少了 MCF-7 房间的增长。NGA 能增加 anti-apoptotic 蛋白质 Bcl-2 的表示由 mitochondrial transmembrane 损坏伴随了的 apoptosis 相关的蛋白质 FasL, caspase-3, caspase-8, caspase-9,和 Bax 和减少的表示。MCF-7 房间上的 NGA 的 antiproliferative 效果由于 Fas/FasL 和细胞色素 C 小径的 G0/G1 拘捕,增加的 apoptosis 和激活。这些结果提供重要卓见进 NGA 通过损害乳癌房间的增长的细胞、分子的机制。 | Keming Wang Yuhong Tang Ming Sun Binbin Lu Hongqin Zhu Ou Ji Qun Shen | 2011 | Acta Biochimica et Biophysica Sinica2011，43，9： | 9 |
| 8 | Contrasting elevational diversity patterns for soil bacteria between two ecosystems divided by the treeline显示文摘Above- and below-ground organisms are closely linked, but how elevational distribution pattern of soil microbes shifting across the treeline still remains unknown. Sampling of 140 plots with transect, we herein investigated soil bacterial distribution pattern from a temperate forest up to a subalpine meadow along an elevational gradient using Illumina sequencing. Our results revealed distinct elevational patterns of bacterial diversity above and below the treeline in responding to changes in soil conditions:a hollow elevational pattern in the forest(correlated with soil temperature, pH, and C:N ratio) and a significantly decreasing pattern in the meadow(correlated with soil pH, and available phosphorus). The bacterial community structure was also distinct between the forest and meadow, relating to soil pH in the forest and soil temperature in the meadow. Soil bacteria did not follow the distribution pattern of herb diversity, but bacterial community structure could be predicted by herb community composition. These results suggest that plant communities have an important influence on soil characteristics, and thus change the elevational distribution of soil bacteria. Our findings are useful for future assessments of climate change impacts on microbial community. | Guixiang Li Guorui Xu Congcong Shen Yong Tang Yuxin Zhang Keming Ma | 2016 | Science China(Life Sciences)2016，59，11： | 9 |
| 9 | Comparison on Soil Carbon Stocks Between Urban and Suburban Topsoil in Beijing, China显示文摘The urban population and urbanized land in China have both increased markedly since the 1980 s. Urban and suburban developments have grown at unprecedented rates with unknown consequences for ecosystem functions. In particular, the effect of rapid urbanization on the storage of soil carbon has not been studied extensively. In this study, we compared the soil carbon stocks of different land use types in Beijing Municipality. We collected 490 top-soil samples(top 20 cm) from urban and suburban sites within the Sixth Ring Road of Beijing, which cover approximately 2400 km2, and the densities of soil organic carbon(SOC), soil inorganic carbon(SIC), and total carbon(TC) were analyzed to determine the spatial distribution of urban and suburban soil carbon characteristics across seven land use types. The results revealed significant differences in soil carbon densities among land use types. Additionally, urban soil had significantly higher SOC and SIC densities than suburban soil did, and suburban shelterbelts and productive plantations had lower SIC densities than the other land use types. The comparison of coefficients of variance(CVs) showed that carbon content of urban topsoil had a lower variability than that of suburban topsoil. Further findings revealed that soil carbon storage increased with built-up age. Urban soil built up for more than 20 years had higher densities of SOC, SIC and TC than both urban soil with less than 10 years and suburban soil. Correlation analyses indicated the existence of a significantly negative correlation between the SOC, SIC, and TC densities of urban soil and the distance to the urban core, and the distance variable alone explained 23.3% of the variation of SIC density and 13.8% of the variation of TC density. These results indicate that SOC and SIC accumulate in the urban topsoil under green space as a result of the conversion of agricultural land to urban land due to the urbanization in Beijing. | LUO Shanghua MAO Qizheng MA Keming | 2014 | Chinese Geographical Science2014，24，5： | 8 |
| 10 | Carbon and nitrogen isotopes analysis and sources of organic matter in surface sediments from the Sanggou Bay and its adjacent areas, China显示文摘Naturally existing stable carbon and nitrogen isotopes are important in the study of sedimentary organic matter sources. To identify the sources of sedimentary organic matter in Sanggou Bay and its adjacent areas, which is characterized by high-density shellfish and seaweed aquaculture, the grain size, organic carbon(OC), total nitrogen(TN), carbon and nitrogen isotopic composition(δ13C and δ15N) of organic matter in the surface sediment were determined. The results showed that, in August, sedimentary OC and TN ranged from 0.17% to 0.76% and 0.04% to 0.14%, respectively. In November, OC and TN ranged from 0.23% to 0.87% and 0.05% to 0.14%, respectively. There was a significant positive correlation between OC and TN(R=0.98, P<0.0001), indicating that OC and TN were homologous. In August, the δ13C and δ15N of organic matter varied from-23.06‰ to-21.59‰ and 5.10‰ to 6.31‰, respectively. In November, δ13C and δ15N ranged from-22.87‰ to-21.34‰ and 5.13‰ to 7.31‰, respectively. This study found that the major sources of sedimentary organic matter were marine shellfish biodeposition, seaweed farming, and soil organic matter. Using a three-end-member mixed model, we estimated that the dominant source of sedimentary organic matter was shellfish biodeposition, with an average contribution rate of 65.53% in August and 43.00% in November. Thus, shellfish farming had a significant influence on the coastal carbon cycle. | XIA Bin CUI Yi CHEN Bijuan CUI Zhengguo QU Keming MA Feifei | 2014 | Acta Oceanologica Sinica2014，33，12： | 7 |
| 11 | Catalytic oxidation of low concentration formaldehyde over Pt/TiO_(2) catalyst显示文摘Formaldehyde(HCHO) is an important indoor pollutant.Catalytic oxidize low concentration HCHO is an effective way to eliminate indoor pollution.In this study,a series of Pt/TiO_(2) catalysts are prepared by impregnation and reduced by NaBH_4.The effects of loading amount of Pt and cry stal type of TiO_(2) on the physical and chemical properties and the catalytic performance in HCHO oxidation reaction are investigated.The results show that the quantity of active site and the oxygen vacancy of catalysts increa sed with increasing Pt content,which is beneficial to promote the further performance of catalysts.Nevertheless,with the further rises of Pt content,the specific surface area further decreases,and the proportion of Pt^(2+) species on the catalyst surface which is significant to catalytic properties also decreases,causing catalytic performance decreases.Compared with the catalyst supporting on rutile,the Pt/α-TiO_(2) catalyst supporting on anatase has larger specific surface area,more Pt^(2+) phase and easier to form oxygen vacancy in the support,which cause better catalytic performance.The catalyst with Pt content of0.1 wt% and supported by anatase TiO_(2) has the best catalytic performance.The HCHO conversion efficiency reaches 98% and 100% at 50℃ and 100 ℃, and the stabilization time is longer than 140 h. | Yuan Su Keming Ji Jiayao Xun Kan Zhang Ping Liu Liang Zhao | 2021 | Chinese Journal of Chemical Engineering2021，34，1： | 6 |
| 12 | NDRG4 prevents cerebral ischemia/reperfusion injury by inhibiting neuronal apoptosis显示文摘Cerebral ischemia is a major cause of mortality and long-term morbidity worldwide.NDRG4 has been shown to protect against cerebral ischemia,although the underlying mechanisms remain largely unclear.Here we found that NDRG4 expression was decreased in the brain tissues of ischemia/reperfusion(IR)rats,indicating increased apoptosis rates among cerebral cells.NDRG4 restoration via an adenovirus significantly attenuated cerebral infarct sizes and impairments in IR rats.Furthermore,adenovirus-mediated NDRG4 inhibited cell apoptosis in the brains of IR rats and regulated the expression of Bcl-2,Bax,caspase-3,and c-Fos.Moreover,we found that NDRG4 increased expression of BDNF,which is strongly related to cerebral ischemia and cellular apoptosis.Altogether,our findings demonstrate that NDRG4 protects cerebral IR injury by inhibiting cell apoptosis and regulates cerebral cell apoptosis by increasing BDNF expression.These results suggest that NDRG4 may be a therapeutic target for IR treatment. | Lan Wen Lei Liu Linyan Tong Jinfang Li Keming Zhang Qinbin Zhang Changqing Li | 2019 | Genes & Diseases2019，6，4： | 6 |
| 13 | Joint Beamforming Optimization for Reconfigurable Intelligent Surface-Enabled MISO-OFDM Systems显示文摘In this paper,we investigate the reconfigurable intelligent surface(RIS)-enabled multiple-input-single-output orthogonal frequency division multiplexing(MISO-OFDM)system under frequency-selective channels,and propose a low-complexity alternating optimization(AO)based joint beamforming and RIS phase shifts optimization algorithm to maximize the achievable rate.First,with fixed RIS phase shifts,we devise the optimal closedform transmit beamforming vectors corresponding to different subcarriers.Then,with given active beamforming vectors,near-optimal RIS reflection coefficients can be determined efficiently leveraging fractional programming(FP)combined with manifold optimization(MO)or majorization-minimization(MM)framework.Additionally,we also propose a heuristic RIS phase shifts design approach based on the sum of subcarrier gain maximization(SSGM)criterion requiring lower complexity.Numerical results indicate that the proposed MO/MM algorithm can achieve almost the same rate as the upper bound achieved by the semidefinite relaxation(SDR)algorithm,and the proposed SSGM based scheme is only slightly inferior to the upper bound while has much lower complexity.These results demonstrate the effectiveness of the proposed algorithms. | Keming Feng Xiao Li Yu Han Yijian Chen | 2021 | China Communications2021，18，3： | 6 |
| 14 | Differential Tectonic Deformation of the Longmen Mountain Thrust Belt,Western Sichuan Basin,China显示文摘地调查和地震的节解释证明 Longmen 山戳带有明显的微分变丑:带状配列,分割和层化。带状配列意味着那,从 NW 到 NE, Longmen 山戳带能被划分成 Songpan-Garz ê构造的带,可锻的变丑带,基础深奥的戳带,正面的褶层戳带,和低岬消沉。它能向南向北被划分成五个片断从到的分割工具:北片断, Anxian 转移地区,中心片断, Guanxian 转移地区和南部的片断。层化意味着分开层在侧面划分结构的式样。在 Longmen 山戳带的分开层能被分类进三个范畴:深水平的分开层包括外壳披风系统分开层, intracrustal 分开层,和 Presinian 系统基础分开层;中间级的分开层包括寒武纪奥陶纪的分开层,志留纪分开层,等等;并且浅水平的分开层,包括的上面的三叠纪的 Xujiahe 形成分开层和侏罗记分开层。多水平分开层在塑造和 Longmen 山戳带的进化上有很重要的效果。 | TANG Liangjie YANG Keming JIN Wenzheng WAN Guimei LüZhizhou YU Yixin | 2009 | Acta Geologica Sinica(English Edition)2009，83，1： | 6 |
| 15 | Numerical and experimental investigation into hypersonic boundary layer transition induced by roughness elements显示文摘In this work, the Direct Numerical Simulation(DNS) and Oil-Film Interferometry(OFI)technique are used to investigate the hypersonic boundary layer transition induced by single and double roughness elements at Mach number 5. For single roughness, the DNS results showed that both horseshoe vortices and hairpin vortices caused by shear layer instability can affect the boundary layer instability. The generation of the near-wall unstable structure is the key point of boundary layer transition behind the roughness element. At the downstream of the roughness element, the interaction between horseshoe vortices and hairpin vortices will spread in the spanwise direction.For double roughness elements, the effect of the spacing between roughness elements on the transition is studied. It is found that the case of higher spacing between roughness elements is more effective for inducing transition than the lower one. The interaction between two adjacent roughness elements can suppress the evolution of horseshoe vortices in the downstream and trigger the instability of shear layer. Thus, the transition will be suppressed accordingly. | Hao DONG Shicheng LIU Xi GENG Song LIU Liming YANG Keming CHENG | 2019 | Chinese Journal of Aeronautics2019，32，3： | 6 |
| 16 | Seasonal Dynamics of Nitrogen and Phosphorus in Water and Sediment of A Multi-level Ditch System in Sanjiang Plain,Northeast China显示文摘The multi-level ditch system developed in the Sanjiang Plain,Northeast China has sped up water drainage process hence transferred more pollutants from farmlands into the rivers of this region.Understanding the seasonal dynamics of nitrogen (N) and phosphorus (P) transportation in the ditch system and the role of different ditch size is thus crucial for water pollution control of the rivers in the Sanjiang Plain.In this study,an investigation was conducted in the Nongjiang watershed of the Sanjiang Plain to study the nutrient variation and the correlation between water and sediments in the ditch system in terms of ditch level.Water and sediments samples were collected in each ditch level in growing season at regular intervals (once per month),and TN,NO 3--N,NH 4+-N,TP,and PO 4 3--P were analyzed.The results show that nutrient contents in water were higher in June and July,especially in July,the contents of TN and TP were 3.21mg/L and 0.84mg/L in field ditch,4.04mg/L and 1.06mg/L in lateral ditch,2.46mg/L and 0.70mg/L in branch ditch,1.92mg/L and 0.63mg/L in main ditch,respectively.In August and September,the nutrient contents in the water were relatively lower.The peak value of nutrient in ditch water had been moving from the field ditch to the main ditch over time,showing a remarkable impact of ditch system on river water environment.The nutrient transfer in ditch sediments could only be found in rainfall season.Nutrient contents in ditch sediment had effect on that in ditch water,but nutrients in ditch water and sediments had different origination.Ditch management in terms of the key fac-tors is hence very important for protecting river water environment. | GUO Le MA Keming | 2011 | Chinese Geographical Science2011，21，4： | 5 |
| 17 | The effect of extrusion conditions on the properties and textures of AZ31B alloy显示文摘The effect of extrusion conditions on the tensile properties and texture of AZ31B alloy has been investigated by means of optical microscopy(OM),scanning electron microscopy(SEM),electron backscattered diffraction(EBSD)and tensile tests.It is found that the ultimate tensile strength(UTS),the yield strength(YS)and elongation(EN)of the extruded AZ31B alloy are more significantly influenced by extrusion velocities in contrast with temperature.Although the extrusion conditions are different,the {1102}<0101> texture is the chief texture in the AZ31B after extrusion.Moreover,the extrusion textures become scattered with increasing the temperatures at the same extrusion velocity.As the extrusion velocity is raised at the same temperature,the orientation density of textures increases and the separated textures become relatively concentrated.This leads to the changes of tensile properties at different extrusion conditions.©2017 Production and hosting by Elsevier B.V.on behalf of Chongqing University. | Qiang Liu Xiao Zhou Haitao Zhou Xiaohui Fan Keming Liu | 2017 | Journal of Magnesium and Alloys2017，5，2： | 4 |
| 18 | Power flows of three non-conservatively series-coupled oscillators, Part Ⅱ: Numerical analysis显示文摘The direct and indirect power flows among three non-conservatively series-coupled oscillators subjected to random forces have been investigated by the numerical method. The relationship between the power flows and the parameters of the oscillators and couplings have been studied. It is shown that the indirect power flow is caused by the resonant transmission between the indirectly coupled oscillators. Once the parameters of the oscillator elements have been settled, the indirect power flow is mainly determined by the coupling stiffness k3 and k4, and is less infiuenced by coupling dampings c3 and c4. The indirect power flow cannot be ignored in strong coupling conditions. Because of the resonant transmission between the indirectly coupled oscillators, the indirect power flow still cannot be neglected even if the coupling stiffness is relatively small and the coupling damping is relatively | WANG Minqing(Xi’an Jiaotong University Xi’an 710049)SHENG Meiping Ren Keming SUN Jincai(Institute of Acoustics Engineering, Northwestern Polgtechnical University Xi’an 710072) | 1998 | Chinese Journal of Acoustics1998，17，3： | 4 |
| 19 | OsAM1 is required for leptotene-zygotene transition in rice显示文摘发生在成熟分裂的发作的事件充分没被阐明。在现在的学习, OsAM1 被基于地图的克隆在米饭(Oryza sativa L.) 识别。OsAM1, Arabidopsis SWI1 的一个相当或相同的事物和玉米 AM1,与一个卷卷领域把蛋白质编码为它的中央区域。在 Osam1 异种,花粉母亲房间在 leptotene 被逮捕,证明 OsAM1 为 leptotene-zygotene 转变被要求。Immunocytological 分析表明 OsAM1 在早前期作为 foci 存在我 meiocytes。很微弱的 OsREC8 foci 在 Osam1 异种坚持了,显示 OsAM1 没为 OsREC8 的起始的 meiotic 招募被要求。当 OsAM1 不在时,包括 PAIR2, ZEP1 和 OsMER3,许多另外的批评 meiotic 部件不能正确地被安装到染色体上。在 pair2, Osmer3 和 zep1 异种,相反, OsAM1 能通常被装载,建议 OsAM1 起造在成熟分裂的开始的合适的染色体结构里的一个基本作用。 | Lixiao Che Ding Tang Kejian Wang Mo Wang Keming Zhu Hengxiu Yu Minghong Gu Zhukuan Cheng | 2011 | Cell Research2011，21，4： | 4 |
| 20 | Reduced dose of Bacillus Calmette-Guérin versus full dose of Bacillus Calmette-Guérin for non-muscle-invasive bladder cancer after transurethral resection bladder tumor: a meta-analysis of randomized controlled trials显示文摘 | Qin Xin Wu Keming Xie Libo Zhao Sixiu Lu Yiping | 2014 | Chinese Medical Journal2014，，22： | 4 |
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