维普中文期刊产品整合服务
15篇 您的检索式:作者名="Kailiang Yu"
    题名 作者 年代 出处 被引量
1Species richness loss after nutrient addition as affected by N:C ratios and phytohormone GA_(3)contents in an alpine meadow community显示文摘Aims From the light-competition hypothesis,competition for light is asymmetric and the observed increases in plant-size variability with increasingly denser canopies are primarily due to competition for light.Greater plant height provides pre-emptive access to light and produces increased height differences among species.The question is what produces these differences in plant height or height growth response among species in response to fertilization.Methods In 2009,a field experiment of N,P and N+P enrichments at three levels each was initiated in an alpine meadow on the northeast Qinghai-Tibet Plateau.Effects of fertilization on species richness,aboveground net primary production(ANPP),relative light intensity and plant height of different plant functional groups were determined.Festuca ovina(grass),Kobresia humilis(sedge),Oxytropis ochrocephala(legume),Taraxacum lugubre(rosette forb)and Geranium pylzowianum(upright forb)were selected as exemplars of each of the indicated functional groups.The N:C ratios in aboveground biomass,gibberellic acid(GA_(3))concentrations in leaves,plant heights and height relative growth rate(RGR)of these exemplar species were analyzed in detail.Important Findings Species richness of grasses significantly increased with increasing N+P levels.Species richness of legumes and upright forbs decreased after N and N+P additions.P addition had no significant effect on species richness.The effects of N+P addition on species richness and ANPP were consistently stronger than those of the single N or P fertilization.Reductions in species richness caused by nutrient addition paralleled the increases in ANPP and decreases in light intensity under the canopies,indicating indirect effect of nutrient addition on species richness via ANPP-induced light competition.The exemplar species that responded most positively to fertilization in height and RGR also displayed stronger increases in their GA_(3) content and N:C ratios.GA_(3) concentrations and N:C ratios were positively correlated with height RGR when the data were pooled for all species.The tallest and the fastest-growing grass,F.ovina,had the largest increase in N:C ratios and the highest leaf GA_(3) concentrations after nutrient addition.These results indicated that differential responses of GA_(3) concentrations and N:C ratios to fertilization were related to the inequality in plant heights among species.Xiaomei Sun Kailiang Yu Herman HShugart Gang Wang 2016Journal of Plant Ecology2016,9,2:10
2Short-term responses of an alpine meadow community to removal of a dominant species along a fertilization gradient显示文摘Aims The relationship between biodiversity and ecosystem functioning has intrigued ecologists for several decades,but the effect of loss of a dominant species on community structure and functioning along a nutrient gradient remains poorly understood.The aim of this paper was to test the effect of a dominant species on community structure and function by conducting a species removal experiment along a fertilization gradient.Methods We removed the population of a dominant species(Elymus nutans)in a long-term fertilization field in an alpine meadow on the Tibetan Plateau,China.univariate general linear models were used to evaluate the effects of fertilization and removal on above-ground vegetation characteristics,including photosynthetically active radiation in the understory,species richness,shannon-Weiner diversity index,simpson’s dominance index,above-ground biomass(includ-ing different functional groups)and seedling richness and density.Important Findingsresults revealed that after two plant growing seasons,there was no significant effect of the removal of a dominant species on species richness and diversity of the remaining vegetation,but the biomass of forbs and seedling recruitment were significantly increased indicative of the potential for long-term effects.moreover,removal had a large effect at high fertilization levels,but little effect when fertilization levels were low.our studies indicated that community response to loss of a dominant species was mainly dependent on resource availability and the remaining functional group identities.We also found seedling recruitment was usually more sensitive to the influence of competition of dominant species than the estab-lished vegetation in the short term.Wei Li Jimin Cheng Kailiang Yu Howard E.Epstein Guozhen Du 2015Journal of Plant Ecology2015,8,5:1
3Bexarotene improves motor function after spinal cord injury in mice显示文摘Spinal cord injury is a challenge in orthopedics because it causes irreversible damage to the central nervous system.Therefore,early treatment to prevent lesion expansion is crucial for the management of patients with spinal cord injury.Bexarotene,a type of retinoid,exerts therapeutic effects on patients with cutaneous T-cell lymphoma and Parkinson's disease.Bexarotene has been proven to promote autophagy,but it has not been used in the treatment of spinal cord injury.To investigate the effects of bexarotene on spinal cord injury,we established a mouse model of T11–T12 spinal cord contusion and performed daily intraperitoneal injection of bexarotene for 5 consecutive days.We found that bexarotene effectively reduced the deposition of collagen and the number of pathological neurons in the injured spinal cord,increased the number of synapses of nerve cells,reduced oxidative stress,inhibited pyroptosis,promoted the recovery of motor function,and reduced death.Inhibition of autophagy with 3-methyladenine reversed the effects of bexarotene on spinal cord injury.Bexarotene enhanced the nuclear translocation of transcription factor E3,which further activated AMP-activated protein kinase-S-phase kinase-associated protein 2-coactivator-associated arginine methyltransferase 1 and AMP-activated protein kinase-mammalian target of rapamycin signaling pathways.Intravenous injection of transcription factor E3 sh RNA or intraperitoneal injection of compound C,an AMP-activated protein kinase blocker,inhibited the effects of bexarotene.These findings suggest that bexarotene regulates nuclear translocation of transcription factor E3 through the AMP-activated protein kinase-Sphase kinase-associated protein 2-coactivator-associated arginine methyltransferase 1 and AMP-activated protein kinase-mammalian target of rapamycin signal pathways,promotes autophagy,decreases reactive oxygen species level,inhibits pyroptosis,and improves motor function after spinal cord injury.Xingyu Wang Zhihao Shen Haojie Zhang Hao-Jie Zhang Feida Li Letian Yu Hua Chen Kailiang Zhou Hui Xu Sunren Sheng 2023Neural Regeneration Research2023,18,12:1
4m -CPBA/TFA: an efficient nonmetallic reagent for oxidative coupling of 1,2-diarylethylenes显示文摘Kailiang Wang Yanna Hu Meng Wu Zheng Li Zhihui Liu Bo Su Ao Yu Yu Liu Qingmin Wang 2010Tetrahedron2010,,47:1
5Characteristic of a novel composite inorganic polymer coagulant–PFAC prepared by hydrochloric pickle liquor显示文摘Wei Lan Huiqin Qiu Jie Zhang Yanjing Yu Kailiang Yang Zhongzhe Liu Guoji Ding 2008Journal of Hazardous Materials2008,,1:1
6Molecular basis of heterosis and related breeding strategies reveal its importance in vegetable breeding显示文摘Heterosis has historically been exploited in plants;however,its underlying genetic mechanisms and molecular basis remain elusive.In recent years,due to advances in molecular biotechnology at the genome,transcriptome,proteome,and epigenome levels,the study of heterosis in vegetables has made significant progress.Here,we present an extensive literature review on the genetic and epigenetic regulation of heterosis in vegetables.We summarize six hypotheses to explain the mechanism by which genes regulate heterosis,improve upon a possible model of heterosis that is triggered by epigenetics,and analyze previous studies on quantitative trait locus effects and gene actions related to heterosis based on analyses of differential gene expression in vegetables.We also discuss the contributions of yield-related traits,including flower,fruit,and plant architecture traits,during heterosis development in vegetables(e.g.,cabbage,cucumber,and tomato).More importantly,we propose a comprehensive breeding strategy based on heterosis studies in vegetables and crop plants.The description of the strategy details how to obtain F_(1) hybrids that exhibit heterosis based on heterosis prediction,how to obtain elite lines based on molecular biotechnology,and how to maintain heterosis by diploid seed breeding and the selection of hybrid simulation lines that are suitable for heterosis research and utilization in vegetables.Finally,we briefly provide suggestions and perspectives on the role of heterosis in the future of vegetable breeding.Daoliang Yu Xingfang Gu Shengping Zhang Shaoyun Dong Han Miao Kiros Gebretsadik Kailiang Bo 2021Horticulture Research2021,8,1:1
7Remnant fertilizer monitoring system for maize fertilizer applicators显示文摘A remnant fertilizer monitoring system utilizing three-dimensional(3D)reconstruction was proposed to detect the amount of remaining fertilizer in the applicator’s tank.Bench tests were carried out to compare the performance of four algorithms to estimate the remnant fertilizer amount:fertilizer remnant monitoring biharmonic spline algorithm(V4),natural nearest-neighbor algorithm(Natural),linear algorithm(Linear),cubic algorithm(Cubic).The average relative error for remnant fertilizer monitoring is 7.33%for the Linear algorithm,7.30%for the Natural algorithm,5.18%for the Cubic algorithm,and 4.30%for the V4 algorithm.Field tests are conducted at three fertilization rates to compare the performances of the V4 and Cubic algorithms.The average relative error for discharged fertilizer monitoring is 8.64%for the Cubic algorithm,which is 1.91%lower than that of the V4 algorithm.The results show that the Cubic algorithm has the best performance for remnant fertilizer monitoring.The average relative error of remnant fertilizer monitoring is 2.42%for the Cubic algorithm,which is 0.43%lower than that of the V4 algorithm.The response time of the remnant fertilizer monitoring system is 0.26 s.The results demonstrate that the proposed remnant fertilizer monitoring system is highly accurate and suitable for real-time applications.Yaohui Zhang Kailiang Zhang Yang Yu Dongxing Zhang Li Yang Tao Cui Xiantao He 2023International Journal of Agricultural and Biological Engineering2023,16,5:0
8Effect of ternary transition metal sulfide FeNi_(2)S_(4)on hydrogen storage performance of MgH_(2)显示文摘Hydrogen storage is a key link in hydrogen economy,where solid-state hydrogen storage is considered as the most promising approach because it can meet the requirement of high density and safety.Thereinto,magnesium-based materials(MgH_(2))are currently deemed as an attractive candidate due to the potentially high hydrogen storage density(7.6 wt%),however,the stable thermodynamics and slow kinetics limit the practical application.In this study,we design a ternary transition metal sulfide FeNi_(2)S_(4)with a hollow balloon structure as a catalyst of MgH_(2)to address the above issues by constructing a MgH_(2)/Mg_(2)NiH_(4)-MgS/Fe system.Notably,the dehydrogenation/hydrogenation of MgH_(2)has been significantly improved due to the synergistic catalysis of active species of Mg_(2)Ni/Mg_(2)NiH_(4),MgS and Fe originated from the MgH_(2)-FeNi_(2)S_(4)composite.The hydrogen absorption capacity of the MgH_(2)-FeNi_(2)S_(4)composite reaches to 4.02 wt%at 373 K for 1 h,a sharp contrast to the milled-MgH_(2)(0.67 wt%).In terms of dehydrogenation process,the initial dehydrogenation temperature of the composite is 80 K lower than that of the milled-MgH_(2),and the dehydrogenation activation energy decreases by 95.7 kJ·mol-1 compared with the milled-MgH_(2)(161.2 kJ·mol^(-1)).This method provides a new strategy for improving the dehydrogenation/hydrogenation performance of the MgH_(2)material.Yaokun Fu Lu Zhang Yuan Li Sanyang Guo Han Yu Wenfeng Wang Kailiang Ren Wei Zhang Shumin Han 2023Journal of Magnesium and Alloys2023,11,8:0
9Nitrogen addition delays the emergence of an aridity-induced threshold for plant biomass显示文摘Crossing certain aridity thresholds in global drylands can lead to abrupt decays of ecosystem attributes such as plant productivity,potentially causing land degradation and desertification.It is largely unknown,however,whether these thresholds can be altered by other key global change drivers known to affect the water-use efficiency and productivity of vegetation,such as elevated CO_(2) and nitrogen(N).Using>5000 empirical measurements of plant biomass,we showed that crossing an aridity(1–precipitation/potential evapotranspiration)threshold of∼0.50,which marks the transition from dry sub-humid to semi-arid climates,led to abrupt declines in aboveground biomass(AGB)and progressive increases in root:shoot ratios,thus importantly affecting carbon stocks and their distribution.N addition significantly increased AGB and delayed the emergence of its aridity threshold from 0.49 to 0.55(P<0.05).By coupling remote sensing estimates of leaf area index with simulations from multiple models,we found that CO_(2) enrichment did not alter the observed aridity threshold.By 2100,and under the RCP 8.5 scenario,we forecast a 0.3%net increase in the global land area exceeding the aridity threshold detected under a scenario that includes N deposition,in comparison to a 2.9%net increase if the N effect is not considered.Our study thus indicates that N addition could mitigate to a great extent the negative impact of increasing aridity on plant biomass in drylands.These findings are critical for improving forecasts of abrupt vegetation changes in response to ongoing global environmental change.Hailing Li César Terrer Miguel Berdugo Fernando T.Maestre Zaichun Zhu Josep Peñuelas Kailiang Yu Lin Luo Jie-Yu Gong Jian-Sheng Ye 2023National Science Review2023,10,11:0
10Flexoelectricity-enhanced photovoltaic effect in trapezoid-shaped NaNbO_(3)nanotube array composites显示文摘In this work,we successfully prepared vertically aligned NaNbO_(3)nanotube(NN-NT)with trapezoidal shapes,in which the orthorhombic and monoclinic phases coexisted.According to the structure analysis,the NN-NT/epoxy composite film had excellent flexoelectric properties due to the lattice distortion caused by defects and irregular shape.The flexoelectric effect is the greatest in the vertical direction in the flexible NN-NT/epoxy composite film,and the flexoelectric coefficient()is 2.77×10^(−8)C·m^(−1),which is approximately 5-fold higher than that of the pure epoxy film.The photovoltaic current of the NN-NT/epoxy composite film increased from 39.9 to 71.8 nA·cm^(−2)in the direction of spontaneous polarization when the sample was bent upward due to the flexoelectricity-enhanced photovoltaic(FPV)effect.The flexoelectric effect of the NN-NT/epoxy composite film could modulate the photovoltaic response by increasing it by 80%or reducing it to 65%of the original value.This work provides a new idea for further exploration in efficient and lossless ferroelectric memory devices.Fang Yu Junyuan Tian Fengying Jiang Yunjie Liu Chaohai Li Chengwei Wang Zhong Lin Wang Kailiang Ren 2023Nano Research2023,16,9:0
11Catalytic effect of MOF-derived transition metal catalyst FeCoS@C on hydrogen storage of magnesium显示文摘The introduction of the heterogeneous catalysts with high activity can significantly improve hydrogen storage performance of MgH_(2),therefore,in this paper,we synthesize a carbon-supported transition metal compound,FeCoS@C derivative from ZIF-67,by utilizing the in situ formed C dispersive multiphase Mg_(2)Co,α-Fe,Co_(3)Fe_(7),and MgS to implement catalysis to MgH_(2).Noteworthily,MgH_(2)-FeCoS@C rapidly ab-sorbs 6.78 wt%H_(2)within 60 s at 573 K and can also absorb 4.56 wt%H_(2)in 900 s at 473 K.Besides,the addition of FeCoS@C results in decreasing of the initial dehydrogenation temperatures of MgH_(2)from 620 to 550 K.The dehydrogenation activation energy of MgH_(2)decreases from 160.7 to 91.9 kJ mol^(-1).Studies show that the Mg_(2)Co,α-Fe,and Co_(3)Fe_(7)act as“hydrogen channels”to accelerate hydrogen transfer due to the presence of transition metals,and MgS with excellent catalytic effect formed from MgH_(2)-FeCoS@C provides a strong and stable catalytic effect.Besides,the carbon skeleton obtained by the carbonization of ZIF-67 not only serves as a dispersion for the multiphase catalytic system,but also provides more active sites for the catalysts.Our study shows that the multiphase and multiscale catalytic system provides an effective strategy for improving the hydrogen storage performance of MgH_(2).Yaokun Fu Lu Zhang Yuan Li Sanyang Guo Zhichao Yu Wenfeng Wang Kailiang Ren Qiuming Peng Shumin Han 2023Journal of Materials Science & Technology2023,,7:0
12Research on Multi-Objective Optimization Model of Industrial Microgrid Considering Demand Response Technology and User Satisfaction显示文摘In the process of wind power,coal power,and energy storage equipment participating in the operation of industrial microgrids,the stable operation of wind-storage industrial microgrids is guaranteed by considering demand response technology and user satisfaction.This paper firstly sorts out the status quo of microgrid operation optimization,and determines themain requirements for user satisfaction considering three types of load characteristics,demand response technology,power consumption benefit loss,user balance power purchase price and wind power consumption evaluation indicators in the system.Secondly,the operation architecture of the windstorage industrialmicrogrid is designed,and themulti-objective optimizationmodel of the wind-storage industrial microgrid is established with the comprehensive operating cost and user satisfaction as the target variables,and the corresponding solution method is mentioned.Finally,a typical wind-storage industrial microgrid is selected for simulation analysis,and the results showthat,(1)Considering the demand response technology,the comprehensive operating cost of the wind-storage industrial microgrid per day is 5292.63 yuan,the user satisfaction index is 0.953,and the wind power consumption rate reaches 100%.(2)By setting four scenarios,it highlights that the grid-connected operation mode is superior to the off-grid operation mode.Considering the demand response technology,the load curve can be optimized,and the time-of-use electricity price can be fully used to coordinate the operation of each unit,which enhances the wind power consumption capacity.The compromise solution of the system comprehensive operating cost and user satisfaction under the confidence level of 0.95 is obtained,namely(5343.22,0.94).(3)The frontier curve shows that in the process of model solving,it is impossible to optimize any sub-objective by changing the control variables,which proves that there is a close relationship between the comprehensive operating cost of the system and the confidence level,which can provide effective guidance for the optimal operation of industrial microgrids.Junhui Li Jinxin Zhong Kailiang Wang Yu Luo Qian Han Jieren Tan 2023Energy Engineering2023,120,4:0
13Significantly enhanced energy density of nanodiamond/polyimide composites at high temperatures with ultralow nanodiamond contents显示文摘The development of miniature devices has generated a large demand for dielectric polymers with high energy storage density,especially at high temperatures.First,poly(methyl methacrylate)(PMMA)-coated nanodiamond(ND)particles were incorporated into a polyimide(PI)substrate to fabricate ND-g-PMMA/PI(NPP)composites.We found for the first time that with a very low content(0.4 vol.%)of ND particles,NPP-0.4 composite material gave the dielectric constant of 4.4,which is 37.5%higher than that of the PI film.The maximum energy density of the NPP-0.4 composite film achieves 9.4 J cm^(-3)at room temperature,which is 54%higher than that of the PI film.Furthermore,we found that the NPP-0.2 composite reaches the highest energy density and discharge efficiency of 5.77 J cm^(-3)and 72.3%at 150℃,which are 104%and 51.3%higher than those of the PI film at 150℃.This result shows a much higher energy density than most previously published results for high-temperature polymer capacitors.This phenomenon can be explained by the simulation results using COMSOL in which the interface polarization of ND/PI composites reached their maximum value with ultralow ND contents(0.4 vol.%).This research shows great promise for polymer capacitors with relatively high energy density at high temperatures.WANG ChengWei CAO XiaoDan TIAN JunYuan YU Fang JIANG FengYing REN KaiLiang 2023Science China(Technological Sciences)2023,66,4:0
14Structural,compositional and trait differences between the mature and the swamp meadow communities显示文摘Aims The mature meadows(MMs)and the swamp meadows(SMs)are the two most important ecosystems in the eastern Tibetan Plateau,China.Besides their substantial differences in terms of soil water conditions and thereby the soil oxygen and nutrients,however,little is known about the differences in community composition,struc-ture,traits and productivity between these two meadows.We par-ticularly ask whether light availability mediated by physical structure heterogeneity is a key determinant of the difference in community composition and productivity between these two meadows.Methods We examined the community structure,composition,aboveground net primary productivity(ANPP),light availability in understory and the community-weighted means(CWMs)for leaf morphological and physiological traits in 12 random plots(5 m×5 m)for each of the studied habitats.Important findings The results showed that plant community in the MM had higher variation in both vertical and horizontal structure and thus had more light availability in the understory.The MM had higher spe-cies richness and greater ANPP than the SM.The CWMs of leaf morphological and physiological traits for species in the MM fea-tured a fast-growing strategy(i.e.higher height,leaf area and net photosynthesis rate and lower nitrogen:phosphorus ratio),in con-trast to those in the SM.We also found that there were significant correlations between the CWM of traits and the ANPP,indicating that some key traits in these habitats have linked to community productivity.Our study also suggests that the heterogeneity in the community structure,which affects light availability in the under-story,may play an important role in determining the community composition and productivity.In conclusion,our study revealed significant differences in community structure,composition and traits between the MM and the SM,and the light availability that related closely to community structure is the key factor to deter-mine the composition and productivity of the community of these two habitats.Honglin Li Kailiang Yu Danghui Xu Wei Li Dorjeeh Tondrob Guozhen Du 2018Journal of Plant Ecology2018,11,1:0
15FGF21 alleviates microvascular damage following limb ischemia/reperfusion injury by TFEB-mediated autophagy enhancement and anti-oxidative response显示文摘Dear Editor,Microvascular damage is a pivotal pathological factor in lower limb ischemia/reperfusion(I/R)injury.1 Excessive reactive oxygen species(ROS)formation and disrupted autophagic flux have been recognized as the critical mechanism of cellular death,2,3 especially in I/R injury.Recent investigation has displayed that fibroblast growth factor 21(FGF21)exerts a protective effect against I/R injury via transcription factor EB(TFEB)-mediated autophagy and regulation of anti-oxidative response.4 However,the promising role of FGF21 in acute lower limb I/R injury remains elusive.Fanfeng Chen Jiayu Zhan Xiaoqing Yan Abdullah Al Mamun Yu Zhang Yitie Xu Hongyu Zhang Xiaokun Li Kailiang Zhou Jian Xiao 2022Signal Transduction and Targeted Therapy2022,7,11:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费