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| 1 | A spatial-explicit dynamic vegetation model that couples carbon,water,and nitrogen processes for arid and semiarid ecosystems显示文摘Arid and semiarid ecosystems,or dryland,are important to global biogeochemical cycles.Dryland's community structure and vegetation dynamics as well as biogeochemical cycles are sensitive to changes in climate and atmospheric composition.Vegetation dynamic models has been applied in global change studies,but the complex interactions among the carbon(C),water,and nitrogen(N) cycles have not been adequately addressed in the current models.In this study,a process-based vegetation dynamic model was developed to study the responses of dryland ecosystems to environmental changes,emphasizing on the interactions among the C,water,and N processes.To address the interactions between the C and water processes,it not only considers the effects of annual precipitation on vegetation distribution and soil moisture on organic matter(SOM) decomposition,but also explicitly models root competition for water and the water compensation processes.To address the interactions between C and N processes,it models the soil inorganic mater processes,such as N mineralization/immobilization,denitrification/nitrification,and N leaching,as well as the root competition for soil N.The model was parameterized for major plant functional types and evaluated against field observations. | Chi ZHANG ChaoFan LI Xi CHEN GePing LUO LongHui LI XiaoYu LI Yan YAN Hua SHAO | 2013 | Journal of Arid Land2013，5，1： | 8 |
| 2 | Kinetics and Mechanism of Interfacial Reaction in a SiC_f/Ti Composite显示文摘In order to evaluate the interfacial reaction, a SiCf/Ti (TA1) composite was fabricated by a vacuum hot pressingmethod and then heat-treated in vacuum at 800℃ for up to 100 h. The elemental distributions of C, Si and Ti at theinterfacial reaction zone were investigated. It was found that the reaction zone occurs during the fabrication processand continuously grows at high temperature because the Si and C atoms diffuse from SiC fibers to the matrix and Tiatoms diffuse in the opposite direction. The growth of the reaction zone is diffusion controlled and the mechanismof the reaction can be described by a reactive diffusion model of solid-state growth of an AmBn layer between twoelementary substances A and B. | Guoxing ZHANG, Qiang KANG, Nanlin SHI, Geping LI and Dong LIInstitute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China | 2003 | Journal of Materials Science & Technology2003，19，5： | 7 |
| 3 | Modeling grassland net primary productivity and water-use efficiency along an elevational gradient of the Northern Tianshan Mountains显示文摘Mountainous ecosystems are considered highly sensitive and vulnerable to natural disasters and climatic changes.Therefore,quantifying the effects of elevation on grassland productivity to understand ecosystem-climate interactions is vital for mountainous ecosystems.Water-use efficiency(WUE)provides a useful index for understanding the metabolism of terrestrial ecosystems as well as for evaluating the degradation of grasslands.This paper explored net primary productivity(NPP)and WUE in grasslands along an elevational gradient ranging from 400 to 3,400 m asl in the northern Tianshan Mountains-southern Junggar Basin(TMJB),Xinjiang of China,using the Biome-BGC model.The results showed that:1)the NPP increased by 0.05 g C/(m2·a)with every increase of 1-m elevation,reached the maximum at the mid-high elevation(1,600 m asl),and then decreased by 0.06 g C/(m2·a)per 1-m increase in elevation;2)the grassland NPP was positively correlated with temperature in alpine meadow(AM,2,700-3,500 m asl),mid-mountain forest meadow(MMFM,1,650-2,700 m asl)and low-mountain dry grassland(LMDG,650-1,650 m asl),while positive correlations were found between NPP and annual precipitation in plain desert grassland(PDG,lower than 650 m asl);3)an increase(from 0.08 to 1.09 g C/(m2·a))in mean NPP for the grassland in TMJB under a real climate change scenario was observed from 1959 to 2009;and 4)remarkable differences in WUE were found among different elevations.In general,WUE increased with decreasing elevation,because water availability is lower at lower elevations;however,at elevations lower than 540 m asl,we did observe a decreasing trend of WUE with decreasing elevation,which may be due to the sharp changes in canopy cover over this gradient.Our research suggests that the NPP simulated by Biome-BGC is consistent with field data,and the modeling provides an opportunity to further evaluate interactions between environmental factors and ecosystem productivity. | QiFei HAN GePing LUO ChaoFan LI Hui YE YaoLiang CHEN | 2013 | Journal of Arid Land2013，5，3： | 5 |
| 4 | An analysis of oasis evolution based on land use and land cover change: A case study in the Sangong River Basin on the northern slope of the Tianshan Mountains显示文摘自从1950年代,调查绿洲进化和外设的变化由重建七张陆地盖子地图在 Sangong 河盆抛弃的这研究源于黑白天线相片( 1958 , 1968 ,和 1978 ),一张颜色红外线的天线相片( 1987 ), Landsat 题目的 Mapper ( TM )形象( 1998 ),卫星倒 lObservation de la Terre (点)形象( 2004 ),和 Landsat 运作的陆地成像器( OLI )形象( 2014 )。结果显示出那:(1 ) 自从 1950,绿洲连续地从一把冲积扇子膨胀了超过四次到一个冲积平原,引起荒芜的风景的收缩那被一个 Haloxylon ammodendron Bunge 社区(HBC ) 和一个 Tamarix chinensis 愁相社区(TLC ) 统治。而且,主要(1958-1968 ) 并且期末考试(2004-2014 ) 舞台是最重要的时期在哪个农业土地在时期 1958-1968 期间经历了最快速的扩大期间,并且布满建筑物区域在 2000 年代以后显示出最快速的扩大。(2 ) 二个基本管理模式,本地政府形成的一个本地模式和一个农场管理模式由 Xinjiang 生产和构造军团发展了,一起在各种各样的陆地使用和 landcover (LULC ) 下面的支持的绿洲进化上演。(3 ) 现代绿洲的进化在 1950s-2004 期间显示出干旱绿洲的一般特征,当在 2004-2014 的时期期间它被大规模内部盆的水消遣或新水来源的进口描绘时。(4 ) 绿洲在损坏荒芜的植被的情况下膨胀了,导致在荒芜的植物社区的结构的不同变化,它将使保护荒芜的生态系统更困难。 | ZHANG Qi LUO Geping LI Longhui ZHANG Miao LV Nana WANG Xinxin | 2017 | Journal of Geographical Sciences2017，27，2： | 4 |
| 5 | Underwater acoustic multipath sparse channel estimation via gridless relevance vector machine method显示文摘In the scenario of underwater acoustic sparse channel estimation with trainingsequences, grid points in the measuring matrix are caused by discretizing procedure. Estimatedaccuracy might not be guaranteed with the state-of-the-art methods when multipath delaysdon't exactly locate on the grid points. In this paper, we construct a gridless measuring matrixfor sparse channel estimation which contains an off-grid adjusting factor. The Relevance VectorMachine (RVM) algorithm is employed to estimate this factor. The numerical experiments fortwo different underwater channels are performed to testify the newly proposed method. Tileresults demonstrate that this method outperforms conventional ones in terms of estimatingerror and bit error rate, especially when the grid gets coarser. | LIN Geping MA Xiaochuan YAN Shefeng JIANG Li | 2016 | Chinese Journal of Acoustics2016，35，4： | 4 |
| 6 | Modeling the contribution of abiotic exchange to CO_2 flux in alkaline soils of arid areas显示文摘Recent studies on alkaline soils of arid areas suggest a possible contribution of abiotic exchange to soil CO2 flux(Fc).However,both the overall contribution of abiotic CO2 exchange and its drivers remain unknown.Here we analyzed the environmental variables suggested as possible drivers by previous studies and constructed a function of these variables to model the contribution of abiotic exchange to Fc in alkaline soils of arid areas.An automated flux system was employed to measure Fc in the Manas River Basin of Xinjiang Uygur autonomous region,China.Soil pH,soil temperature at 0–5 cm(Ts),soil volumetric water content at 0–5 cm(θs)and air temperature at10 cm above the soil surface(Tas)were simultaneously analyzed.Results highlight reduced sensitivity of Fc to Ts and good prediction of Fc by the model Fc=R10Q10(Tas–10)/10+r7q7(pH–7)+λTas+μθs+e which represents Fc as a sum of biotic and abiotic components.This presents an approximate method to quantify the contribution of soil abiotic CO2 exchange to Fc in alkaline soils of arid areas. | WenFeng WANG Xi CHEN GePing LUO LongHui LI | 2014 | Journal of Arid Land2014，6，1： | 2 |
| 7 | The relationship between soil,climate and forest development in the mid-mountain zone of the Sangong River watershed in the northern Tianshan Mountains,China显示文摘The mountainous forests in arid regions, being sensitive to climate change, are one of the key research topics related to the mechanism of interaction between climate and the terrestrial ecosystem. In this study, the spatial distribution of a mid-mountain forest and its environmental factors were investigated by using a combination of remote sensing technology, field survey, climate indices and soil nutrient analysis in the Sangong River watershed of the northern Tianshan Mountains. The forest(Picea schrenkiana) was distributed between 1,510 and 2,720 m asl. Tree height and diameter at breast height(DBH) exhibited a bi-modal pattern with increasing elevation, and rested at 2,450 and 2,250 m asl, respectively. The two maxima of DBH appeared at 2,000 and 2,550 m asl, and the taller trees were observed at 2,100 and 2,600 m asl. For the annual mean temperature, the difference was approximately 5.8°C between the lowest and the highest limits of the forest, and the average decreasing rates per hundred meters were 0.49°C and 0.55°C with increasing altitude between 1,500 and 2,000 m asl and above 2,000 m asl, respectively. The annual precipitation in the forest zone first increased and then decreased with the increase of altitude, and the maximum value was at 2,000 m asl. For per hundred meters, the annual precipitation increased with the rate of 31 mm between 1,500 and 2,000 m asl and decreased by 7.8 mm above 2,000 m asl. The SOM, TN and TP were high between 2,000 and 2,700 m asl and low at the lower and upper forest limits. The minimum Ca CO3 concentration, p H value and EC coincided with the maximum precipitation belt at 2,000 m asl. The SOM, TN and TP were high in the topsoil(0–10 cm) and differed significantly from the values observed in the deep soil layers(>10 cm). The soil nutrients exhibited spatial heterogeneity and higher aggregation in the topsoil. In conclusion, soil and climate are closely related to each other, working synergistically to determine the development and spatial distribution of the mid-mountain forest in the study area. The order of the importance of environmental factors to forest development in this study is as follows: soil nutrients>precipitation>elevation>temperature. | Li DAI YiXing FENG GePing LUO YanZhong LI WenQiang XU | 2015 | Journal of Arid Land2015，7，1： | 2 |
| 8 | The influence of microtexture on the formation mechanism of nodules in Zircaloy-4 alloy tube显示文摘Corrosion re sistance of Zircaloy-4 alloy tube in superheated steam at 673 K/10.3 MPa is anisotropic.A part of the surface undergoes uniform corrosion while the other suffers nodular corrosion.Narrow and wide nodules are observed after an exposure period of 3 and 30 days,respectively.A new matrix transformation method is established in order to study the formation mechanism of nodules in the cross-section(CS) of Zircaloy-4 alloy tube using the EBSD technique,while the CS perpendicular to axial direction(AD).The results reveal that the microtexture is a key factor behind the two types of corrosion.Furthermore,the oxide layers grow anisotropically over the corroded surface.A thick oxide layer forms over the nodular corrosion region on the grains with c-axis oriented in the range of 40° around tangential direction(TD),whereas a thin oxide layer over the uniform corrosion region is detected on the grains with c-axis oriented in the range of 68° around TD.In short,the anisotropic growth of oxide layer was caused by the change of microtexture of the Zr-4 alloy tube,and this anisotropic growth of oxide layer contributed to the nodules formation. | Yingdong Zhang Fusen Yuan Fuzhou Han Muhammad Ali Wenbin Guo Geping Li Chengze Liu Hengfei Gu | 2020 | Journal of Materials Science & Technology2020，47，12： | 2 |
| 9 | Electrochemically-driven interphase conditioning of magnesium electrode for magnesium sulfur batteries显示文摘The earth-abundant magnesium metal is a kind of promising anode material due to its low reduction potential (-2.356V vs. SHE), high volumetric and gravimetric specific capacities of 3882 mAh cm-3 and 2234 mAh g_1 respectively [1]. Moreover, the magnesium anode shows high safety due to the non-dentritic electrodeposition mechanism during cycling, which is related to the strong Mg-Mg bonding and the consequent high energy barrier between the crystal boundaries of different crystal orientation [2]. | Yaqi Li Pengjian Zuo Ruinan Li Mengxue He Yulin Ma Yingxin Shi Xinqun Cheng Chunyu Du Geping Yin | 2019 | Journal of Energy Chemistry2019，28，10： | 1 |
| 10 | Theoretical investigations of oligo(phenylene ethylene)molecular wire: Effects from substituents and external electric field显示文摘 | Yanwei Li Jianwei Zhao Geping Yin | 2007 | Computational Materials Science2007，39，4： | 1 |
| 11 | Low-cost and durable catalyst support for fuel cells: Graphite submicronparticles显示文摘 | Sheng Zhang Yuyan Shao Xiaohong Li Zimin Nie Yong Wang Jun Liu Geping Yin Yuehe Lin | 2009 | Journal of Power Sources2009，，2： | 1 |
| 12 | Microstructure and Mechanical Properties of Ti-35V-15Cr-0.05C Nonburning Titanium Alloy显示文摘Ti-35V-15Cr-0.05C 是新非燃烧的钛合金。结构的分析证明合金由贝它阶段和像板条的高山组成哈在贝它谷物以内散布的阶段,和一些碳化钛粒子出现在谷物边界。用黑暗的地 TEM 方法, TiCr//2 阶段一致地在高山猛抛,这也被发现哈阶段。在在为 15 min 的 900 度 C 的热处理以后, equiaxed 贝它在直径和像板条的高山 60-80 亩 m 分阶段执行哈 1-2% 体积部分的阶段被观察。这合金拥有吸引人的机械性质。(编辑作者摘要) 5 个裁判员。 | Li, Geping Li, Dong Liu, Yuyin Wang, Qingjiang Guan, Shaoxuan Li,
Qingchun | 1998 | Journal of Materials Science & Technology1998，14，5： | 1 |
| 13 | Nano-refinement of the face-centered cubic Zr(Fe,Cr)_(2)secondary phase particles in Zircaloy-4 alloy via localized-shearing/bending-driven fracture under high-temperature compression显示文摘Nanoparticles are extensively introduced to improve the mechanical,physical,and chemical properties of alloys.In the present study,the underlying nano-refinement mechanisms of face-centered cubic Zr(Fe,Cr)_(2)secondary phase particles(SPPs)that precipitated in Zircaloy-4 alloy under high-temperature compression were investigated in detail by utilizing high-resolution transmission electron microscopy(HRTEM)and conventional TEM techniques.The frequently observed Zr(Fe,Cr)_(2)SPPs were incoherent with the matrix and exhibited brittle fracture behaviors without measurable plasticity.HRTEM observations revealed two mechanisms underlying the nano-refinement of incoherent micro-sized SPPs via localized shear fracture on{11¯2}SPP and nanoprecipitate-assisted bending fracture,respectively.The latter was,for the first time,found to occur when the movements of large SPPs were blocked by nanometer-sized SPP during alloy deformation.Accordingly,two force models were proposed to visualize their potential nano-refinement processes.The knowledge attained from this study sheds new light on the deformation behaviors of Zr(Fe,Cr)_(2)SPPs and their associated size refinement mechanisms under high-temperature compression,and is expected to greatly benefit the process optimization of zirconium alloys to achieve precipitate nano-refinement. | Fuzhou Han Geping Li Fusen Yuan Wenbin Guo Jie Ren Qichen Wang Yingdong Zhang Ali Muhammad Chengze Liu Hengfei Gu | 2023 | Journal of Materials Science & Technology2023，，34： | 0 |
| 14 | Analysis of Rent Seeking and Benchmark Management in Information Industry Administration Sector显示文摘 | Xuejun Li Geping Song | 2004 | China-USA Business Review2004，3，7： | 0 |
| 15 | I Have a Dream显示文摘Qu Geping was born in June 1930 in Feicheng,Shandong Province.In 1976 he was appointed China’s chief representative to the United Nations Environment Program(UNEP),and later became the first director of the State Bureau of Environmental Protection and chairman of the Environmental Protection and Resources Conservation Committee of the National People’s Congress (NPC).He received many international awards for his outstanding contributions, including the UNEP Sasakawa Environment Prize in 1992 and the Blue Planet Prize in 1999. | QU GEPING LI YONGFENG | 2009 | China Today2009，58，10： | 0 |
| 16 | Stabilizing electrode-electrolyte interface for high-performance SiO_(x) anode by dual electrolyte additive显示文摘Macro-and micro-interface instability of SiO_(x)anode caused by its dramatic volume variation during cycling will result in low Coulombic efficiency and rapid capacity degradation.In this work,an organic-inorganic composite interfacial layer rich in benzene ring groups,polyisocyanates,and LiF was obtained on SiO_(x)anode by the introduction of 4-fluorophenyl isocyanate(FPI)and fluoroethylene carbonate(FEC)co-additives in electrolyte.The SiO_(x)anode material shows a capacity retention of 69.2%after 100 cycles at a current density of 1 A g^(-1)and rate capacity of 523 m A h g^(-1)at the current density of 3A g^(-1),while the SiO_(x)anode cycling in reference electrolyte has almost no capacity. | Renlong Li Binghan Cui Qingjie Zhou Xue Mu Yunzhi Gao Geping Yin Chuankai Fu Pengjian Zuo | 2023 | Journal of Energy Chemistry2023，，11： | 0 |
| 17 | Primary pulmonary rhabdomyosarcoma in adult:A case report显示文摘Primary pulmonary rhabdomyosarcoma (PPR) in adult is an extremely rare disease, and because of its early metastasis, the prognosis of it is poor. PPR should be included in consideration in the diagnosis and differential diagnosis of lung tumors. | Qu Geping Xiu Qingyu Li Bing Shi Zhaoquan | 2009 | Journal of Medical Colleges of PLA(China)2009，24，6： | 0 |
| 18 | DISTRIBUTION OF Nd-RICH PHASE PARTICLES IN AS-CAST Ti-5Al-4Sn-2Zr-1Mo-0.25Si-1Nd ALLOY显示文摘For the as一cast Ti一55 alloy,the morphology of the alloy riser consists of coarse dendritezone and equiaxial grain zone the second phase particles are 2.0~25 μm in diameterSome particles appear at grain boundaries,the others precipitate within grains the shapesof the particles are mainly ellipsoids,and a few kinds of short needle-like and blockymorphologies The Nd-rich phase particles are enriched in the liquid be fore the interfaceand are engulfed along the solidification plane-front Finally bands of Nd-rich phase particles form parallel to the advancing solidification | LI Geping, LI Dong, LIU Yuyin, HU ZhuangqiInstitute of Metal Research, Chinese Academy of Sciences, Shenyang,China | 1994 | Acta Metallurgica Sinica(English Letters)1994，7，3： | 0 |
| 19 | Spontaneous decoration of ionic compounds at perovskite interfaces to achieve 23.38% efficiency with 85% fill factor in NiO_X-based perovskite solar cells显示文摘Inorganic hole transport materials, particularly NiO_X, have shown considerable promise in boosting the efficiency and stability of perovskite solar cells. However, a major barrier to commercialization of NiO_X-based perovskite solar cells with positive-intrinsic-negative architectures is their direct contact with the absorbing layer, which can lead to losses of photovoltage and fill factor. Furthermore, highly positive under-coordinated Ni cations degrade the perovskite at the interface. Here, we address these issues with the use of an ionic compound(QAPyBF_(4)) as an additive to passivate defects throughout the perovskite layer and improve carrier conduction and interactions with under-coordinated Ni cations. Specifically,the highly electronegative inorganic anion [BF_(4)]~- interacts with the NiO_x/perovskite interface to passivate under-coordinated cations(Ni^(≥3+)). Accordingly, the decorated cells achieved a power conversion efficiency of 23.38% and a fill factor of 85.5% without a complex surface treatment or NiO_X doping. | Geping Qu Deng Wang Xiaoyuan Liu Ying Qiao Danish Khan Yinxin Li Jie Zeng Pengfei Xie Yintai Xu Peide Zhu Limin Huang Yang-Gang Wang Baomin Xu Zong-Xiang Xu | 2023 | Journal of Energy Chemistry2023，，10： | 0 |
| 20 | Surface Microcracks and Relief Caused by Lamella Sliding during High Temperature Tension of Titanium Alloy with Lamella Structure显示文摘张力的样品的破裂附近的侧面的表面被在氧化物电影搬迁前后扫描电子显微镜学(SEM ) 检验。在表面形态学和微观结构之间的关系被建立。微裂缝被表面氧化物的易碎物破裂引起的结果表演由于高山拍摄哈薄片沿着高山滑动哈薄片边界。并且滑动排列高山哈薄片相对优先的样品表面带给微快克形成而且殖民地的加薪不仅。A 滑倒模型,描绘在表面形态学和微观结构之间的关系,向前被带分析观察。 | Feng XU Geping LI Mesut VARLIOGLU Philip NASH Rui YANG | 2006 | Journal of Materials Science & Technology2006，22，4： | 0 |
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