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| 1 | Climate change, water resources and sustainable development in the arid and semi-arid lands of Central Asia in the past 30 years显示文摘The countries of Central Asia are collectively known as the five '-stans': Uzbekistan, Kyrgyzstan, Turkmenistan, Tajikistan and Kazakhstan. In recent times, the Central Asian region has been affected by the shrinkage of the Aral Sea, widespread desertification, soil salinization, biodiversity loss, frequent sand storms, and many other ecological disasters. This paper is a review article based upon the collection, identification and collation of previous studies of environmental changes and regional developments in Central Asia in the past 30 years. Most recent studies have reached a consensus that the temperature rise in Central Asia is occurring faster than the global average. This warming trend will not only result in a higher evaporation in the basin oases, but also to a significant retreat of glaciers in the mountainous areas. Water is the key to sustainable development in the arid and semi-arid regions in Central Asia. The uneven distribution, over consumption, and pollution of water resources in Central Asia have caused severe water supply problems, which have been affecting regional harmony and development for the past 30 years. The widespread and significant land use changes in the 1990 s could be used to improve our understanding of natural variability and human interaction in the region. There has been a positive trend of trans-border cooperation among the Central Asian countries in recent years. International attention has grown and research projects have been initiated to provide water and ecosystem protection in Central Asia. However, the agreements that have been reached might not be able to deliver practical action in time to prevent severe ecological disasters. Water management should be based on hydrographic borders and ministries should be able to make timely decisions without political intervention. Fully integrated management of water resources, land use and industrial development is essential in Central Asia. The ecological crisis should provide sufficient motivation to reach a consensus on unified water management throughout the region. | YU Yang PI Yuanyue YU Xiang TA Zhijie SUN Lingxiao Markus DISSE ZENG Fanjiang LI Yaoming CHEN Xi YU Ruide | 2019 | Journal of Arid Land2019,11,1: | 20 |
| 2 | Brown adipose tissue transplantation improves whole-body energy metabolism显示文摘 | Qingsheng Chi Dehua Wang Zhaoyun Zhang Chenzhong Li Yiming Li Yaoming Xue John R Speakma Wanzhu Jin Xiaomeng Liu Zongji Zhen Xiaoming Zhu Minghui Meng Lan Li Yanyan Shen | 2013 | Cell Research2013,23,6: | 11 |
| 3 | Preparation of photoanode and its application to flexible dye-sensitized solar cells显示文摘A TiO2 slurry was prepared by hydrothermal treating mixture of commercial TiO2 (P25),ethanol and distilled water in an autoclave.A flexible photoanode and dye-sensitized solar cell (DSSC) was fabricated on an ITO-coated poly (ethylene naphthalate) sheet (ITO/PEN) substrate by a doctor-blade technique.The sample was characterized with SEM,UV-vis,FTIR,and the photoelectric properties of the DSSC were measured.The influence of preparation conditions on the properties of the flexible DSSC was investigated.It is found that the TiO2 slurry hydrothermally treated in 185°C for 12 h has good stability and uniformity.Based on the slurry,a flexible DSSC with light-to-electric conversion efficiencies of 3.4% is achieved under irradiation with a simulate solar light intensity of 100 mW/cm2. | XIAO YaoMing,WU JiHuai,LI QingHua,XIE GuiXiang,YUE GenTian,YE HaiFeng,LAN Zhang,HUANG MiaoLiang & LIN JianMing Englineering Research Center of Environment-Friendly Functional Materials,Minsitry of Education,China The Key Laboratory for Functional Materials of Fujian Higher Education,Institute of Materials Physical Chemistry,Huaqiao University,Quanzhou 362021,China | 2010 | Chinese Science Bulletin2010,55,10: | 10 |
| 4 | Land-surface processes and summer-cloud-precipitation characteristics in the Tibetan Plateau and their effects on downstream weather:a review and perspective显示文摘Correct understanding of the land-surface processes and cloud-precipitation processes in the Tibetan Plateau(TP)is an important prerequisite for the study and forecast of the downstream activities of weather systems and one of the key points for understanding the global atmospheric movement.In order to show the achievements that have been made,this paper reviews the progress on the observations for the atmospheric boundary layer,land-surface heat fluxes,cloud-precipitation distributions and vertical structures by using ground-and space-based multiplatform,multisensor instruments and the effect of the cloud system in the TP on the downstream weather.The results show that the form drag related to the topography,land-atmosphere momentum and scalar fluxes is an important part of the parameterization process.The sensible heat flux decreased especially in the central and northern TP caused by the decrease in wind speeds and the differences in the ground-air temperatures.Observations show that the cloud and precipitation over the TP have a strong diurnal variation.Studies also show the compressed-air column in the troposphere by the higher-altitude terrain of the TP makes particles inside clouds vary at a shorter distance in the vertical direction than those in the non-plateau area so that precipitation intensity over the TP is usually small with short duration,and the vertical structure of the convective precipitation over the TP is obviously different from that in other regions.In addition,the influence of the TP on severe weather downstream is preliminarily understood from the mechanism.It is necessary to use model simulations and observation techniques to reveal the difference between cloud precipitation in the TP and non-plateau areas in order to understand the cloud microphysical parameters over the TP and the processes of the land boundary layer affecting cloud,precipitation and weather in the downstream regions. | Yunfei Fu Yaoming Ma Lei Zhong Yuanjian Yang Xueliang Guo Chenghai Wang Xiaofeng Xu Kun Yang Xiangde Xu Liping Liu Guangzhou Fan Yueqing Li Donghai Wang | 2020 | National Science Review2020,7,3: | 10 |
| 5 | A new species of Gobiconodon(Triconodonta, Mammalia) and its implication for the age of Jehol Biota显示文摘A new species of Gobiconodon is found from the Yixian Formation of western Liaoning, China. The new taxa, G. zofiae sp. nov., has a confluent opening for branches Ⅱ and Ⅲ of the trigeminal nerve on the anterior lamina of the petrosal. G. zofiae sp. nov. is similar to Repenomamus in having an ossified Meckels cartilage connecting the lower jaws and ear region. The new species, with enlarged I1/I1, posteriorly located infraorbital foramen and four mental foramina, distinctly differs from the other species of Gobiconodon. The new material indicates that Gobiconodon has four, not five, upper molariforms. The presence of Gobiconodon in Jehol Biota makes it possible to correlate Jehol Biota with faunas in eastern Asia and North America, and suggests the age of the Yixian Formation to be Early Cretaceous. | LI Chuankui WANG Yuanqing HU Yaoming MENG Jin | 2003 | Chinese Science Bulletin2003,48,11: | 10 |
| 6 | Over-activation of TLR5 signaling by high-dose flagellin induces liver injury in mice显示文摘Flagellin 是涉及天生、适应的免疫的大量房间类型的有势力使活跃之物。因此,它是疫苗的一个好辅助候选人,并且它可能在癌症放射疗法和放射紧急情况的一个缓和者期间对主要尖锐放射症候群作为生物杀虫撒布剂工作。然而,积累证据含有在一些煽动性的疾病的出现的 flagellin 例如尖锐的肺发炎,心血管的倒塌和煽动性的肠疾病。这研究的目的是阐明 flagellin-TLR5 发信号激活是否仅仅或是否在肝的 pathophysiology 起一个作用某另外的 flagellin 活动也经由细菌的感染或在临床的应用期间贡献肝损害。Recombinant flagellin 蛋白质与或没有刺激 TLR5 活动被用来评估 flagellin-TLR5 在肝损害发信号在的角色野类型并且 TLR5 击倒老鼠。粗野损害和 hepatocellular 坏死的大区域在 100 或 200 µ 的 intraperitoneal 管理以后在肝织物 12 h 被观察;在一个剂量依赖者的 g flagellin (警察) 和在野类型的老鼠,然而并非在 TLR5 击倒老鼠的时间依赖者举止。flagellin 的 N 终端或 TLR5 绑定域的删除禁止了导致 flagellin 的煽动性的回答和随后的尖锐的肝函数反常和损坏。这些数据证实 flagellin 是肝损害的一个必要决定因素并且证明由高剂量的 flagellin 发信号的 TLR5 的在激活上在肝引起了尖锐煽动性的回答,嗜中性的累积和氧化应力,它贡献导致 flagellin 的肝损害的前进和严厉。 | Yang Xiao Fang Liu Jingyi Yang Maohua Zhong Ejuan Zhang Yaoming Li Dihan Zhou Yuan Cao Wei Li Jie Yu Yi Yang Huimin Yan | 2015 | Cellular & Molecular Immunology2015,12,6: | 9 |
| 7 | Application of upconversion luminescence in dye-sensitized solar cells显示文摘An upconversion luminescence powder TiO2:(Er3+,Yb3+) is prepared by a hydrothermal method and used to fabricate dye-sensitized solar cell (DSSC).The TiO2:(Er3+,Yb3+) powder undergoes upconversion luminescence,converting infrared light which the dye can not absorb into visible light with wavelengths of 510-700 nm which the dye can absorb,increasing the photocurrent of the DSSC.TiO2:(Er3+,Yb3+) also acts as a p-type dopant,heightening the Fermi level of the oxide film,which increases the photovoltage of the DSSC.The best performance of the DSSC is found when the ratio of TiO2/luminescence powder is 1/3 in the luminescence layer.Under simulated solar irradiation of 100 mW cm-2 (AM 1.5),the DSSC containing TiO2:(Er3+,Yb3+) doping achieves a light-to-electricity energy conversion efficiency of 7.28% compared with 6.41% for the undoped DSSC. | XIE GuiXiang LIN JianMing WU JiHuai LAN Zhang LI QingHua XIAO YaoMing YUE GenTian YUE HaiFeng HUANG MiaoLiang | 2011 | Chinese Science Bulletin2011,56,1: | 6 |
| 8 | Diversity of methanotrophs in Zoige wetland soils under both anaerobic and aerobic conditions显示文摘Zoige wetland is one of the most important methane emission centers in China. The oxidation of methane in the wetland affects global warming, soil ecology and atmospheric chemistry. Despite their global significance, microorganisms that consume methane in Zoige wetland remain poorly characterized. In this study, we investigated methanotrophs diversity in soil samples from both anaerobic site and aerobic site in Zoige wetland using pmoA gene as a molecular marker. The cloning library was constructed according to the pmoA sequences detected. Four clusters of methanotrophs were detected. The phylogenetic tree showed that all four clusters detected were affiliated to type I methanotrophs. Two novel clusters (cluster 1, cluster 2) were found to relate to none of the recognized genera of methanotrophs. These clusters have no cultured representatives and reveal an ecological adaptation of particular uncultured methanotrophs in Zoige wetland. Two clusters were belonging to Methylobacter and Methylococcus separately. Denaturing gradient gel electrophoresis gel bands pattern retrieved from these two samples revealed that the community compositions of anaerobic soil and aerobic soil were different from each other while anaerobic soil showed a higher metanotrophs diversity. Real-time PCR assays of the two samples demonstrated that aerobic soil sample in Zoige wetland was 1.5 times as much copy numbers as anaerobic soil. These data illustrated that methanotrophs are a group of microorganisms influence the methane consumption in Zoige wetland. | Juanli Yun Anzhou Ma Yaoming Li Guoqiang Zhuang Yanfen Wang Hongxun Zhang | 2010 | Journal of Environmental Sciences2010,22,8: | 6 |
| 9 | Preparation of Gd_2O_3:Eu^(3+) downconversion luminescent material and its application in dye-sensitized solar cells显示文摘Gd_2O_3 :Eu^(3+) downconversion luminescent powder was prepared using the homogeneous precipitation method. Its optical properties were analyzed and it was introduced into a dye-sensitized solar cell (DSSC). As a luminescence medium, Gd_2O_3 :Eu^(3+) improved light harvesting via conversion luminescence and increased the photocurrent of the DSSC. As a p-type dopant insulating rare earth oxides form an energy barrier, and the Gd_2O_3 :Eu^(3+) elevated the energy level of the oxide film and increased the photovoltage. The photoelectric conversion efficiency for a DSSC with Gd_2O_3 :Eu^(3+) doping (6 : 100) reached 7.01%, which was 17.4% higher than the photoelectrical conversion efficiency of a DSSC without Gd 2 O 3 :Eu 3+ doping. | LI QingBei LIN JianMing WU JiHuai LAN Zhang WANG JiangLi WANG Yue PENG FuGuo HUANG MiaoLiang XIAO YaoMing | 2011 | Chinese Science Bulletin2011,56,28: | 5 |
| 10 | Efficiency improvement of flexible dye-sensitized solar cells by introducing mesoporous TiO_2 microsphere显示文摘Mesoporous TiO2microsphere(MTM)was synthesized via a simple solution route and then mixed with commercial TiO2(P25)to form highly homogeneous and stable TiO2colloid by simple hydrothermal treatment.The TiO2colloid was coated onto the plastic conductive substrate to prepare mesoporous TiO2film for flexible dye-sensitized solar cells(DSSCs)by low-temperature heat treatment.The influence of MTM content on the physicochemical properties of the flexible TiO2film was characterized by scanning electron microscope,transmission electron microscopy,X-ray diffraction,energy-dispersive X-ray spectrometer,N2adsorption-desorption isotherms,UV–vis absorption and diffuse reflectance spectra.It is revealed that with increasing the MTM content,the dye-loading capability of TiO2film and light-harvesting efficiency of flexible DSSCs are improved due to MTM having high surface area and acting as a light scattering center,respectively,resulting in the enhancement of photocurrent of flexible DSSCs.However,more and larger cracks having negative effect on the performances of flexible DSSCs are formed simultaneously.Under the optimal condition with MTM content of 20%,a flexible DSSC with overall light-to-electric energy conversion efficiency of 2.74%is achieved under a simulated solar light irradiation of 100 mW cm 2(AM 1.5),with 26%improvement in comparison with DSSCs based on P25 alone. | FAN LeQing CHEN Yuan WU JiHuai LI ZhaoLei XIAO YaoMing HUANG MiaoLiang YU HaiJun | 2013 | Science China Chemistry2013,56,10: | 5 |
| 11 | NLRC4 downregulates 的激活对 flagellin 的调停 TLR5 的抗体免疫者回答显示文摘细菌的 flagellin 是一个唯一的联系病原体的分子的模式(PAMP ) ,它能被表面认出局部性的像使用费的受体 5 (TLR5 ) 并且 cytosolic 像点头的受体(NLR ) 蛋白质 4 (NLRC4 ) 受体。由 flagellin 和产生有免疫力的回答戏表明小径的 TLR5 或 NLRC4 的激活在抗菌剂免疫的重要角色。然而,它仍然保持不清楚怎么 flagellin 的双活动激活 TLR5 或 NLRC4 发信号小径安排有免疫力的回答。在这研究,我们估计了缺乏能力对 flagellin 在适应有免疫力的回答上独自或在联合激活 TLR5 和 NLRC4 的 flagellin 和它的异种的效果。是不能的激活 NLRC4 的 Flagellin 比的导致了显著地更高的抗体回答野类型的 flagellin。当巨噬细胞在 vivo 被弄空时,增加的抗体反应能被消除。由 flagellin downregulated 的 NLRC4 的激活对 flagellin 的导致 flagellin 、调停 TLR5 的有免疫力的回答。 | Wei Li Jingyi Yang Ejuan Zhang Maohua Zhong Yang Xiao Jie Yu Dihan Zhou Yuan Cao Yi Yang Yaoming Li Huimin Yan | 2016 | Cellular & Molecular Immunology2016,13,4: | 5 |
| 12 | The Tibetan Plateau Surface–Atmosphere Coupling System and Its Weather and Climate Effects: The Third Tibetan Plateau Atmospheric Science Experiment显示文摘The Tibetan Plateau(TP) is a key area affecting forecasts of weather and climate in China and occurrences of extreme weather and climate events over the world. The China Meteorological Administration, the National Natural Science Foundation of China, and the Chinese Academy of Sciences jointly initiated the Third Tibetan Plateau Atmospheric Science Experiment(TIPEX-Ⅲ) in 2013, with an 8–10-yr implementation plan. Since its preliminary field measurements conducted in 2013, routine automatic sounding systems have been deployed at Shiquanhe, Gaize, and Shenzha stations in western TP, where no routine sounding observations were available previously. The observational networks for soil temperature and soil moisture in the central and western TP have also been established. Meanwhile, the plateau-scale and regional-scale boundary layer observations, cloud–precipitation microphysical observations with multiple radars and aircraft campaigns, and tropospheric–stratospheric air composition observations at multiple sites, were performed. The results so far show that the turbulent heat exchange coefficient and sensible heat flux are remarkably lower than the earlier estimations at grassland, meadow, and bare soil surfaces of the central and western TP. Climatologically, cumulus clouds over the main body of the TP might develop locally instead of originating from the cumulus clouds that propagate northward from South Asia. The TIPEX-Ⅲ observations up to now also reveal diurnal variations, macro-and microphysical characteristics, and water-phase transition mechanisms, of cumulus clouds at Naqu station. Moreover, TIPEX-Ⅲ related studies have proposed a maintenance mechanism responsible for the Asian 'atmospheric water tower' and demonstrated the effects of the TP heating anomalies on African, Asian, and North American climates. Additionally, numerical modeling studies show that the Γ distribution of raindrop size is more suitable for depicting the TP raindrop characteristics compared to the M–P distribution, the overestimation of sensible heat flux can be reduced via modifying the heat transfer parameterization over the TP, and considering climatic signals in some key areas of the TP can improve the skill for rainfall forecast in the central and eastern parts of China. Furthermore, the TIPEX-Ⅲ has been promoting the technology in processing surface observations, soundings, and radar observations, improving the quality of satellite retrieved soil moisture and atmospheric water vapor content products as well as high-resolution gauge–radar–satellite merged rainfall products, and facilitating the meteorological monitoring, forecasting, and data sharing operations. | Ping ZHAO Yueqing LI Xueliang GUO Xiangde XU Yimin LIU Shihao TANG Wenming XIAO Chunxiang SHI Yaoming MA Xing YU Huizhi LIU La JIA Yun CHEN Yanju LIU Jian LI Dabiao LUO Yunchang CAO Xiangdong ZHENG Junming CHEN An XIAO Fang YUAN Donghui CHEN Yang PANG Zhiqun HU Shengjun ZHANG Lixin DONG Juyang HU Shuai HAN Xiuji ZHOU | 2019 | Journal of Meteorological Research2019,33,3: | 4 |
| 13 | Mechanical strength of wheat grain varieties influenced by moisture content and loading rate显示文摘Mechanical shear resistance of wheat grain is a significant concern for the designers and researchers related to the design of threshing,handling and processing machinery of the field crops.The grain mechanical properties directly affect the machine geometry and its operational parameters.The present study was carried out to determine the shear resistance of five wheat varieties(Locally names;TD-02,Sindhu-1105,Benazir,China and SKD-118)influenced by moisture content(16.7%,18.7%and 19.5%)and loading rate(3 mm/s,6 mm/s and 9 mm/s).However,some physio-dimensional properties(length,width,thickness,slenderness ratio,surface area and sphericity)were obtained at different moisture contents.The results showed that the shear resistance reduced by increasing the moisture content and loading rate.The average shear resistance decreased from 10.45 N to 3.74 N for 3-9 mm/s loading rate at moisture content of 16.7%to 19.5%.Thus,the maximum correlation(r=0.905)of shear resistance obtained at 16.7%,whereas minimum correlation(r=0.692)obtained at 19.5%.The shear resistance of wheat grain was highly significant(p<0.05)at 9 mm/s for 19.5%.Shear resistance decreased with an increase in the moisture content in the grain whereas deformation is increasing with the increase of moisture content.However,the maximum bulk density of wheat grain obtained at 19.5%for SKD-118,while the minimum obtained at 16.7%for TD-02.It is recommended that the design and modification of wheat grain processing equipment should be executed on the physio-mechanical properties of grain varieties. | Yaoming Li Farman Ali Chandio Zheng Ma Imran Ali Lakhiar Abdul Razaque Sahito Fiaz Ahmad Irshad Ali Mari Umer Farooq Muhammad Suleman | 2018 | International Journal of Agricultural and Biological Engineering2018,11,4: | 4 |
| 14 | Flagellin: a unique microbe-associated molecular pattern and a multi-faceted immunomodulator显示文摘Mammals peacefully co-exist with vast numbers of different bacteria most of the time.Whether pathogenic,nonpathogenic or commensal to a mammalian host,bacteria produce microbeassociated molecular patterns(MAMPs)or pathogen-associated molecular patterns(PAMPs)that are recognized by multiple classes of germline-encoded pattern-recognition receptors(PRRs).Flagellin,a major structural protein of bacterial flagella,is composed of four domains(D0,D1,D2 and D3),of which the D0 and D1 domains are the most highly conserved. | Maohua Zhong Huimin Yan Yaoming Li | 2017 | Cellular & Molecular Immunology2017,14,10: | 3 |
| 15 | Characteristics of land-atmosphere energy and turbulentfluxes over the plateau steppe in central Tibetan Plateau显示文摘The land-atmosphere energy and turbulence exchange is key to understanding land surface processes on the Tibetan Plateau(TP). Using observed data for Aug. 4 to Dec. 3, 2012 from the Bujiao observation point(BJ) of the Nagqu Plateau Climate and Environment Station(NPCE-BJ), different characteristics of the energy flux during the Asian summer monsoon(ASM) season and post-monsoon period were analyzed. This study outlines the impact of the ASM on energy fluxes in the central TP. It also demonstrates that the surface energy closure rate during the ASM season is higher than that of the post-monsoon period. Footprint modeling shows the distribution of data quality assessments(QA) and quality controls(QC) surrounding the observation point. The measured turbulent flux data at the NPCE-BJ site were highly representative of the target land-use type. The target surface contributed more to the fluxes under unstable conditions than under stable conditions. The main wind directions(180° and 210°) with the highest data density showed flux contributions reaching 100%, even under stable conditions. The lowest flux contributions were found in sectors with low data density, e.g., 90.4% in the 360° sector under stable conditions during the ASM season. Lastly, a surface energy water balance(SEWAB) model was used to gap-fill any absent or corrected turbulence data. The potential simulation error was also explored in this study. The Nash-Sutcliffe model efficiency coefficients(NSEs) of the observed fluxes with the SEWAB model runs were 0.78 for sensible heat flux and 0.63 for latent heat flux during the ASM season, but unrealistic values of-0.9 for latent heat flux during the post-monsoon period. | MaoShan Li ZhongBo Su YaoMing Ma XueLong Chen Lang Zhang ZeYong Hu | 2016 | Research in Cold and Arid Regions2016,8,2: | 3 |
| 16 | Preparation of porous nanoparticle TiO_2 films for flexible dye-sensitized solar cells显示文摘A TiO2 paste was prepared by mixing commercial TiO2 (P25), ethanol, distilled water and a small amount of Ti (IV) tetrai-sopropoxide (TTIP), following by a hydrothermal treatment. Before hydrothermal treatment, a stirring for 48 h can prevent cracking TiO2 films. TTIP significantly promote the chemical connection between TiO2 particles and its adherence to the substrate, the TTIP amount of 6 mol% is suitable. UV irradiation can remove some impurities and water from the TiO2 film with an optimal time of 2 h. Transmission electron microscopy, X-ray diffraction, scanning electron microscopy and photovoltaic tests are charac- terized and measured. Shortcircuit current density, open-circuit voltage, fill factor and photoelectric conversion efficiencies for the fabricated flexible dye-sensitized solar cell are 7.20 mA cm-2, 0.769 V, 0.686 and 3.84%, respectively, under irradiation with a simulated solar light of 100 mW cm-2. | WANG Yue WU JiHuai LAN Zhang XIAO YaoMing LI QingBei PENG FuGuo LIN JianMing HUANG MiaoLiang | 2011 | Chinese Science Bulletin2011,56,24: | 3 |
| 17 | Ecological biomass allocation strategies in plant species with different life forms in a cold desert, China显示文摘Biomass allocation patterns among plant species are related to their adaptive ecological strategies. Ephemeral, ephemeroid and annual plant life forms represent three typical growth strategies of plants that grow in autumn and early spring in the cold deserts of China. These plants play an important role in reducing wind velocity in the desert areas. However, despite numerous studies, the strategies of biomass allocation among plant species with these three life forms remain contentious. In this study, we conducted a preliminary quadrat study during 2014–2016 in the southern part of the Gurbantunggut Desert, China, to investigate the allocation patterns of above-ground biomass(AGB) and below-ground biomass(BGB) at the individual level in 17 ephemeral, 3 ephemeroid and 4 annual plant species. Since ephemeral plants can germinate in autumn, we also compared biomass allocation patterns between plants that germinated in autumn 2015 and spring 2016 for 4 common ephemeral species. The healthy mature individual plants of each species were sampled and the AGB, BGB, total biomass(TB), leaf mass ratio(LMR) and root/shoot ratio(R/S) were calculated for 201 sample quadrats in the study area. We also studied the relationships between AGB and BGB of plants with the three different life forms(ephemeral, ephemeroid and annual). The mean AGB values of ephemeral, ephemeroid and annual plants were 0.806, 3.759 and 1.546 g/plant, respectively, and the mean BGB values were 0.106, 4.996 and 0.166 g/plant, respectively. The mean R/S value was significantly higher in ephemeroid plants(1.675) than in ephemeral(0.154) and annual(0.147) plants. The mean LMR was the highest in annual plants, followed by ephemeroid plants and ephemeral plants, reflecting the fact that annual plants allocate more biomass to leaves, associated with their longer life span. Biomass of ephemeral plants that germinated in autumn was significantly higher than those of corresponding plants that germinated in spring in terms of AGB, BGB and TB. However, the R/S value was similar in plants that germinated in autumn and spring. The slope of regression relationship between AGB and BGB differed significantly among the three plant life forms. These results support different biomass allocation hypotheses. Specifically, at the individual level, the AGB and BGB partitioning supports the allometric hypothesis for ephemeroid and annual plants and the isometric hypothesis for ephemeral plants. | FAN Lianlian DING Junxiang MA Xuexi LI Yaoming | 2019 | Journal of Arid Land2019,11,5: | 2 |
| 18 | Construction and Application of a Climate Risk Index for China显示文摘In the context of global warming,China is facing with increasing climate risks.It is imperative to develop quantitative indices to reflect the climate risks caused by extreme weather/climate events and adverse climatic conditions in association with different industries.Based on the observations at 2288 meteorological stations in China and the meteorological disasters data,a set of indices are developed to measure climate risks due to water-logging,drought,high temperature,cryogenic freezing,and typhoon.A statistical method is then used to construct an overall climate risk index(CRI)for China from these individual indices.There is a good correspondence between these indices and historical climatic conditions.The CRI,the index of water-logging by rain,and the high temperature index increase at a rate of 0.28,0.37,and 0.65 per decade,respectively,from 1961 to 2016.The cryogenic freezing index is closely related to changes in the consumer price index for food.The high temperature index is correlated with the consumption of energy and electricity.The correlation between the yearly growth in claims on household property insurance and the sum of the water-logging index and the typhoon index in the same year is as high as 0.70.Both the growth rate of claims on agricultural insurance and the annual growth rate of hospital inpatients are positively correlated with the CRI.The year-on-year growth in the number of domestic tourists is significantly negatively correlated with the CRI in the same year.More efforts are needed to develop regional CRIs. | Yujie WANG Lianchun SONG Dianxiu YE Zhe WANG Rong GAO Xiucang LI Yizhou YIN Zunya WANG Yaoming LIAO | 2018 | Journal of Meteorological Research2018,32,6: | 2 |
| 19 | A resource recycling technique of hydrogen production from the catalytic degradation of organics in wastewater显示文摘A resource recycling technique of hydrogen production from the catalytic degradation of organics in wastewater by aqueous phase reforming (APR) has been proposed. It is worthy of noting that this technique may be a potential way for the purification of refractory and highly toxic organics in water for hydrogen production. Hazardous organics (such as phenol, aniline, nitrobenzene, tetrahydrofuran (THF), toluene, N,N-dimethylformamide (DMF) and cyclohexanol) in water could be completely de-graded into H2 and CO2 with high selectivity over Raney Ni, and Sn-modified Raney Ni (Sn-Raney-Ni) or Pd/C catalyst under mild conditions. The experimental results operated in tubular and autoclave reactors, indicated that the degradation degree of organics and H2 selectivity could reach 100% under the optimal reaction conditions. The Sn-Raney-Ni (Sn/Ni=0.06) and Pd/C catalysts show better catalytic performances than the Raney Ni catalyst for the degradation of organics in water into H2 and CO2 by the aqueous phase reforming process. | LI XiaoNian KONG LingNiao XIANG YiZhi JU YaoMing WU XiaoQiong FENG Feng YUAN JunFeng MA Lei LU ChunShan ZHANG QunFeng | 2008 | Science China Chemistry2008,51,11: | 2 |
| 20 | Facile Synthesis of Pd-Ni Nanoparticles on Reduced Graphene Oxide under Microwave Irradiation for Formic Acid Oxidation显示文摘Pd 和 Pd x Ni nanoparticles 在减少的 graphene 氧化物上被支持了(Pd/rGO 和 Pd x Ni/rGO ) 由在乙二醇使用帮助微波的加热方法。形态学,作文和电气化学的性能被 TEM, XRD, XPS 和电气化学的方法描绘了。没有 PdNi 合金粒子的 XRD 和 XPS 结果表演在 Pd 形成了 x Ni/rGO 和 composites 主要在 Pd 0 和 NiOOH 种类形式存在。电气化学的结果揭示那 Pd x Ni/rGO 更高与 41 展览的原子比率从 Pd 和 Ni 的喂的来源综合了活动,更好的稳定性和更小的电子与商业 Pd/C 相比向蚁的酸电镀物品氧化转移抵抗, Pd/rGO 和其它 Pd x Ni/rGO 样品。优秀 electrocatalytic 表演显示 Ni 的适当数量的增加能极大地为蚁的酸氧化提高 Pd 催化剂的活动和稳定性。 | Miaoyu Li Ruiqin Liu Gaoyi Han Yanni Tian Yunzhen Chang Yaoming Xiao | 2017 | Chinese Journal of Chemistry2017,35,9: | 2 |