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9篇 您的检索式:作者名="Hu Minqi"
    题名 作者 年代 出处 被引量
1近年中国北方草地变绿受降水增加的驱动显示文摘中国北方的暖湿化是近期的热点话题,然而其对植被生长的影响仍不清楚。本研究基于长时间序列(1982–2018年)数据,研究了归一化植被指数(NDVI)的时间动态及其气候驱动因子之间的关系,以探索近年来气候的暖湿化是否会导致该区植被变绿。我们采用分段回归探测了NDVI的变化趋势是否存在转变点,用Pearson相关分析描述了植被指数与气候因子的关系。最后,采用逐步多元回归方法研究了气候因子对NDVI时间变化的贡献率。研究结果表明,NDVI时间变化趋势的转变点出现在2008年,GIMMS NDVI在1982–2008年略有增加,上升速率为0.00022 yr?1,在2008–2015年上升速率达到0.002 yr?1,MODIS NDVI在2008–2018年上升速率为0.0018 yr?1。降水是NDVI变化的主要驱动因子,气温和饱和水汽压差(VPD)对NDVI的变化影响较小。总体看来,NDVI时间序列变化趋势存在转变点,并且近期气候的暖湿化主导了中国北方草地植被变绿,这为今后更好地预测该地区气候变化下的植被覆盖变化提供了依据。Kai Di Zhongmin Hu Mei Wang Ruochen Cao Minqi Liang Genan Wu Ruru Chen Guangcun Hao Yaolong Zhao 2021Journal of Plant Ecology2021,14,5:2
2Synthesis, Characterization, Hydrolytic Degradation, and Biocompatibility of Poly[bis(lactic acid ester)phosphazenes)]显示文摘Xiaoying Gong Li Xu Lidong Shao Lin Chen Minqi Hu Yunmei Bi 2013International Journal of Polymeric Materials and Polymeric Biomaterials2013,,2:1
3RAFT Polymerizationof N-vinylcaprolactam and Effects of the EndGroup on the Thermal Response of Poly(N-vinylcaprolactam)显示文摘Lidong Shao Minqi Hu Lin Chen 2012Reacti Funct Poly2012,,:1
4Four decades of full-scale nitrous oxide emission inventory in China显示文摘China is among the top nitrous oxide(N_(2)O)-emitting countries,but existing national inventories do not provide full-scale emissions including both natural and anthropogenic sources.We conducted a four-decade(1980-2020)of comprehensive quantification of Chinese N_(2)0 inventory using empirical emission factor method for anthropogenic sources and two up-to-date process-based models for natural sources.Total N_(2)O emissions peaked at 2287.4(1774.8-2799.9)Gg N_(2)0 yr-1 in 2018,and agriculture-developed regions,like the East,Northeast,and Central,were the top N_(2)O-emitting regions.Agricultural N_(2)O emissions have started to decrease after 2016 due to the decline of nitrogen fertilization applications,while,industrial and energetic sources have been dramatically increasing after 2005.N_(2)O emissions from agriculture,industry,energy,and waste represented 49.3%,26.4%,17.5%,and 6.7% of the anthropogenic emissions in 2020,respectively,which revealed that it is imperative to prioritize N_(2)O emission mitigation in agriculture,industry,and energy.Natural N_(2)O sources,dominated by forests,have been steadily growing from 317.3(290.3-344.1)Gg N_(2)0 yr^(-1) in 1980 to 376.2(335.5-407.2)Gg N_(2)O yr^(-1) in 2020.Our study produces a Full-scale Annual N_(2)O dataset in China(FAN_(2)020),providing emergent counting to refine the current national N,Oinventories.Minqi Liang Zheyan Zhou Peiyang Ren Han Xiao Xu-Ri Zhongmin Hu Shilong Piao Hanqin Tian Qing Tong Feng Zhou Jing Wei Wenping Yuan 2024National Science Review2024,11,3:0
5Host-Defense-Peptide-Mimickingβ-Peptide Polymer Acting as a Dual-Modal Antibacterial Agent by Interfering Quorum Sensing and Killing Individual Bacteria Simultaneously显示文摘Host defense peptides(HDPs)are one of the potentially promising agents for infection diseases due to their broad spectrum and low resistance rate,but their clinical applications are limited by proteolytic instability,high-cost,and complicated synthesis process.Here,we report a host-defense-peptidemimickingβ-peptide polymer that resists proteolysis to have enhanced the activity under physiological conditions,excellent antimicrobial efficiency even at high density of bacteria,and low cost for preparation.Theβ-peptide polymer demonstrated quorum sensing(QS)interference and bactericidal effect against both bacterial communities and individual bacterium to simultaneously block bacterial communication and disrupt bacterial membranes.The hierarchical QS network was suppressed,and main QS signaling systems showed considerably down-regulated gene expression,resulting in excellent biofilm eradication and virulence reduction effects.The dual-modal antibacterial ability possessed excellent therapeutic effects in Pseudomonas aeruginosa pneumonia,which could inhibit biofilm formation and exhibit better antibacterial and anti-inflammatory efficiency than clinically used antibiotics,levofloxacin.Furthermore,theβ-peptide polymer also showed excellent therapeutic effect Escherichia coli pyogenic liver abscess.Together,we believed that theβ-peptide polymer had a feasible clinical potential to treat bacterial infection diseases.Wanlin Li Ximian Xiao Yuchen Qi Xiuhui Lin Huiqun Hu Minqi Shi Min Zhou Weinan Jiang Longqiang Liu Kang Chen Kai Wang Runhui Liu Min Zhou 2023Research2023,,4:0
6降水-生产力的空间关系是否稳定不变?显示文摘降水是全球陆地生态系统中植被生长和净初级生产力的主要驱动因素。因此,探究降水和生产力关系有助于深入了解气候变化如何改变生态系统功能。降水-生产力的空间关系在全球不同草地上非常相似,但在连续多年气候异常的情况下,这种关系是否会发生变化以及如何变化尚不清楚。本研究利用利用中国北方温带草地长达10年低于多年平均降水的时期,基于遥感植被指数数据,量化了区域尺度上降水-植被生产力关系在持续多年的干湿期之间将如何变化。结果表明,在连续10年的干期,降水-生产力空间相关性急剧下降,而该空间关系的下降主要是由于不同草原类型对干旱的响应在空间上存在高度的异质性,即不同生态系统对干旱的响应程度存在差异。因此,如果未来气候变化进一步加剧全球草地的干旱,那么基于历史时期(平水期)得到的降水-生产力空间关系推测区域尺度植被生产力可能导致误差。Zhongmin Hu Minqi Liang Alan Knapp Jianyang Xia Wenping Yuan 2022Journal of Plant Ecology2022,15,4:0
7Metal-organic frameworks based single-atom catalysts for advanced fuel cells and rechargeable batteries显示文摘The next-generation energy storage systems such as fuel cells,metal-air batteries,and alkali metal(Li,Na)-chalcogen(S,Se)batteries have received increasing attention owing to their high energy density and low cost.However,one of the main obstacles of these systems is the poor reaction kinetics in the involved chemical reactions.Therefore,it is essential to incorporate suitable and efficient catalysts into the cell.These years,single-atom catalysts(SACs)are emerging as a frontier in catalysis due to their maximum atom efficiency and unique reaction selectivity.For SACs fabrication,metal-organic frameworks(MOFs)have been confirmed as promising templates or precursors due to their high metal loadings,structural adjustability,porosity,and tailorable catalytic site.In this review,we summarize effective strategies for fabricating SACs by MOFs with corresponding advanced characterization techniques and illustrate the key role of MOFs-based SACs in these batteries by explaining their reaction mechanisms and challenges.Finally,current applications,prospects,and opportunities for MOFs-based SACs in energy storage systems are discussed.Yifei Wu Peng Hu Fengping Xiao Xiaoting Yu Wenqi Yang Minqi Liang Ziwei Liang Aixin Zhu 2023Journal of Energy Chemistry2023,,5:0
8Striatum shape development of the human fetal brain in early second trimester显示文摘The striatum is the largest structure of the basal ganglia,receiving synaptic input from multiple regions including the neocortex,thalamus,external globus pallidus,and midbrain.One of its major roles is to integrate sensorimotor,associative and limbic information.The development and evolution of basal ganglia is one of the most fundamental and important questions in neuroscience.Here,we segmented the fetal striatum using 7.0T MR images from 46 specimens from 14 to 22 gestational weeks and revealed the developmental course of the fetal striatum using volume and shape analyses.The absolute volume of caudate nucleus(CN)was linearly expanded and moderate hemisphere effect was observed in the absolute volume of CN.While the relative volume had a nonlinear relationship with GW,and there was no obvious difference between hemispheres.Both absolute and relative volumes of the putamen showed linear expansion,and there was no obvious difference between hemispheres.Tian Mimi Xu Feifei Zhang Zhonghe Hu Minqi Liu Shuwei 2021解剖学杂志2021,44,S01:0
9MRI-based morphological analysis of the adult brainstem during aging显示文摘The brainstem is a critical structure that possesses numerous neural nuclei,regulates vital autonomic functions,and closely related to many neurological disorders.The morphological changes of brainstem can reflect the condition of nuclei and might be early biomarkers of neurological disorders.We used strict brainstem segmentation criteria to manually segment 1.5T MRI of 187 normal adults aged from 19 to 70.There are obvious atrophy of volume of midbrain and medulla oblongata during aging process,and the pons was hardly changed.Hu Minqi Liu Shuwei Tang Yuchun 2021解剖学杂志2021,44,S01:0
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