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24篇 您的检索式:作者名="Chen Yonggui"
    题名 作者 年代 出处 被引量
1N-Heterocyclic Carbene Organocatalysis: Activation Modes and Typical Reactive Intermediates显示文摘N-Heterocyclic carbene(NHC)organocatalysis has been developed as an important approach in modern organic synthesis.Versatile activation modes within NHC organocatalysis have been established with countless transformations being realized in both efficient and selective fashion.We would like to provide an overview on the key progresses achieved within this field in the past two decades.Since numerous excellent reviews have been documented within this area,we will mainly focus on the scientific development of this research field based on the basic reaction modes and typical reaction intermediates.Xingkuan Chen Hongling Wang Zhichao Jin Yonggui Robin Chi 2020Chinese Journal of Chemistry2020,38,10:5
2Enrichment of heavy metals in coal gangue by puff balls and mechanism research显示文摘Coal gangue with/without wild puff balls growing on or covering up were analyzed by means of inductively coupled plasma atomic emission spectrometry(ICP-AES) and atomic fluorescence spectrometry(AFS) to detect the contents of heavy metal elements in the plants. Seven heavy metals were chosen to do the experiments, which showed that the puff balls have strong enrichment capacity for heavy metals(As, Pb, Mn and Ni). The highest enrichment level was Mn, 220.3 mg/kg(dry weight) for puffball fruiting bodies, and the highest As, Cr and Pb enrichment levels for puffball mycelium were 111, 265.3 and 86 mg/kg, respectively. Cd, Mn and Ni could transfer from puffball mycelium to its fruiting bodies, while As, Cr, Pb and Co mainly accumulated in the mycelium. The contents of five organic acids(tartaric acid, glycolic acid, lactic acid, citric acid and malic acid) in puffballs were determined with high performance liquid chromatography. With water, ethanol and ethyl acetate as solvents, the puffball extracts performed dissolution reactions with coal gangue, in which the water extract(containing a large amount of organic acids) was most effective in releasing heavy metals, especially As, Pb, Cr, Mn, Co and Ni from coal gangue. As a pioneer species, puff balls absorbed the hazardous trace elements in coal gangue matrix to reduce its eco-toxicity, on the other hand, it raised the p H value of coal gangue, improving the vegetation growing conditions for coal gangue matrix to a certain extent and laying the foundation for ecological restoration of coal gangue dumps.CHEN Miao ZHU Lijun WU Yonggui FU Tianling RAN Yan 2014Chinese Journal Of Geochemistry2014,33,4:4
3Effects of dams on water and sediment delivery to the sea by the Huanghe (Yellow River): The special role of Water-Sediment Modulation显示文摘Yu Yonggui Shi Xuefa Wang Houjie Yue Chengkun Chen Shenliang Liu Yanguang Hu Limin Qiao Shuqing 2014Anthropocene2014,,:1
4Preparation,characterization and adsorptive study of rare earth ions using magnetic GMZ bentonite显示文摘WU Dongbei ZHU Chunming CHEN Yonggui 0,,:1
5MicroRNAs与癌症显示文摘MicroRNAs (miRNAs) belong to a class of noncoding, regulatory RNAs that are involved in oncogenesis and show remarkable tissue specificity.miRNAs are approximately 22 nt non-coding RNAs, which regulate gene expression in a sequence-specific manner via translational inhibition or messenger RNA (mRNA) degradation, thus affecting various cellular processes.Since the discovery of their fundamental mechanisms of action, the field of miRNAs has opened a new era in the understanding of small noncoding RNAs.Recent evidence has shown that miRNA controls cell growth, apoptosis, and differentiation.Cancer is a complex genetic disease caused by abnormalities in gene structure and expression, moreover, miRNA expression correlates with cancers and could have a crucial function in tumor progression.Bioinformatic data indicate that each miRNA can control hundreds of target genes, but identification of the accurate miRNA targets will be crucial to exploit the emerging knowledge of miRNA contribution to cancer process.Libo Xiao Zhiping Wu Rui Feng Qishun Zhu Chenwei Gao Yan Chen Chun Hou Yonggui Wu 2010The Chinese-German Journal of Clinical Oncology2010,9,9:1
6Preparation, characterization and adsorptive study of rare earth ions using magnetic GMZ bentonite 显示文摘Wu Dongbei Zhu Chunming Chen Yonggui 2012Applied Clay Science2012,6263,:1
7Early Warning of Heavy Metal Pollution after Tailing Pond Failure Accident显示文摘Heavy metal pollution is a major issue after tailing pond failure accident.It is important to predict pollution trends for limited data of pollution sources.A simple phase separation heavy metal model was built for early warning simulation of heavy metal pollution accidents.Based on this,a new simulation framework has been developed to predict the pollution trends of the downstream according to the measured data at upstream sections.By setting the upstream monitoring date as the inflow boundary condition,the changing processes of heavy metal manganese(Mn) with different phases in the downstream can be accurately simulated and forecasted.Results showed that the concentration of the suspended phase in the downstream was larger than that in the aqueous phase and sediment phase.With this,the early warning of pollution trends after accidents could be made a few days ahead.It indicates that the impact of sediment on heavy metal should not be ignored in the early warning of tailing pond failure accidents.Yonggui Wang Yinqun Yang Qiang Li Yaxin Zhang Xiaolong Chen 2022Journal of Earth Science2022,33,4:1
8Management of post-stroke neuropsychiatric disorders显示文摘Post-stroke neuropsychiatric(NP) disorders are common and have complex etiologies.Multiple factors such as lesion location, personality characteristics, socioeconomic status, pre-stroke psychiatric history, and family support are the determining factors in most cases. Although depression and anxiety are more common, emotional incontinence and catastrophic reactions are also frequently observed. Post-stroke depression(PSD)has been associated with an increased risk of stroke recurrence. Despite its serious consequences and high prevalence, PSD remains undetected and untreated. Treatment options of NP disorders depend on severity, presentation at the time of diagnosis, and patient cooperation, and include antidepressants, mood stabilizers, exercise therapy, psychotherapy, and even revascularization. The efficient management of NP disorders improves outcomes, quality of life, and survival rates in post-stroke patients. However,very few studies have identified definitive treatment for these patients; therefore, further research is required.Ahsan Ali Khan Lukui Chen Guilong Zhang Xiaoyuan Guo Guojian Wu Hong Wang Yang You Yuchun Gu Yonggui Yuan 2016Translational Neuroscience and Clinics2016,2,4:1
9Seismic tomography and its application in mining显示文摘ZHAO YONGGUI WANG CHAOFAN CHEN YANMIN et a1 1996Chinese Journal of Geophysics1996,39,4:1
10Seismic tomography and its application in mining显示文摘Zhao Yonggui Wang Chaofan Chen Yanmin 1996Chinese Journal of Geophysics1996,39,4:1
11Infl uence of sequential tropical cyclones on phytoplankton blooms in the northwestern South China Sea显示文摘Upper ocean responses to the passage of sequential tropical cyclones over the northwestern South China Sea(SCS)in 2011 were investigated using satellite remote sensing data,Argo reanalysis data,and an array of mooring data.We found that the sea surface low temperature region lasted for more than 38 days and two phytoplankton blooms occurred after the passage of sequential tropical cyclones.The upper ocean cooling reached 2–5°C with a right-side bias was observed along the typhoon track to about 200 km.The maintenance of low temperature region and the two phytoplankton blooms were mainly driven by upwelling and near-inertial turbulence mixing induced by the sequential tropical cyclones.The fi rst phytoplankton bloom appeared on the 7 th day after the passage of the three tropical cyclones,and the chlorophyll-a(chl-a)concentration increased by 226%,which may be mainly driven by typhoons induced upwelling.The second phytoplankton bloom occurred on the 30 th day,the chl-a concentration increased by 290%.Further analysis suggested that only the typhoons with similar characteristics as Nesat and Nalgae can induce strong near-inertial oscillation(NIO).Strong turbulent mixing associated with the near-inertial baroclinic shear instability lasted for 26 days.The measured mean eddy diff usivity in the upper ocean was above 10-4 m 2/s after typhoon Nesat.Enhancement of the turbulent mixing in the upper ocean helped to transport nutrient-rich cold waters from the deep layer to the euphotic layer,and is a major mechanism for the long-term maintenance of low temperature region as well as the second phytoplankton bloom.Tongyu WANG Shuwen ZHANG Fajin CHEN Yonggui MA Chen JIANG Jie YU 2021Journal of Oceanology and Limnology2021,39,1:1
12Dual Stereocontrol for Enantioselective Hydrogenation of Dihydroisoquinolines Induced by Tuning the Amount of N-Brornosuccinirnide显示文摘Yue Ji Jie Wang Muwang Chen Lei Shi Yonggui Zhou 2018Chinese Journal of Chemistry2018,36,2:1
13Seismic tomography and its application in mining显示文摘Zhao Yonggui Wang Chaofan Chen Yanmin 1996Chinese Journal of Geophysics1996,39,4:1
14A C-type lectin(Lv CTL4)from Litopenaeus vannamei is a downstream moleculeof the NF-κB signaling pathway and participates in antibacterialimmune response显示文摘Haoyang Li Yonggui Chen Ming Li 2015Fish&Shellfish Immunology2015,43,1:1
15Implementing wind turbines in a tall building for powergeneration: A study of wind loads and wind speed amplifications显示文摘Li Qiusheng Chen Fubin Li Yonggui 2013Journal of Wind Engineering and Industrial Aerodynamics2013,116,:1
16Adsorption of La(III) onto GMZ bentonite: effect of contact time, bentonite content, pH value and ionic strength显示文摘CHEN Yonggui ZHU Chunming SUN Yanhong 2012Journal of Radioanalytical and Nuclear Chemistry2012,292,3:1
17Seismic tomography and its application in mining显示文摘Zhao Yonggui Wang Chaofan Chen Yanmin 1996Chinese Journal of Geophysics1996,39,4:1
18Plasma-Loaded Cerenkov Free-Electron Laser显示文摘The cylindrical plasma-loaded Cerenkov free-electron laser is studied by using Huid theory.It is shown that its working frequency and linear growth rate are higher th&n that of common Cerenkov free-electron laser,and for the same injection current,the linear growth rate of the system does not decrease as the gap between the dielectric Jin ear and the electron beam increases,but there is an opthiium gap value corresponding to the ma.xiniuni growth rate.LING Gcnshen CHEN Deming LIU Yonggui LI Chuanlu 1993Chinese Physics Letters1993,10,10:0
19U1 snRNP proteins promote proximal alternative polyadenylation sites by directly interacting with 3'end processing core factors显示文摘In eukaryotic cells,both alternative splicing and alternative polyadenylation(APA)play essential roles in the gene regulation network.U1 small ribonucleoprotein particle(U1 snRNP)is a major component of spliceosome,and U1 snRNP complex can suppress proximal APA sites through crosstalking with 3end processing factors.However,here we show that both knockdown and overexpression of SNRPA,SNRPC,SNRNP70,and SNRPD2,the U1 snRNP proteins,promote the usage of proximal APA sites at the transcriptome level.SNRNP70 can drive the phase transition of PABPN1 from droplet to aggregate,which may reduce the repressive effects of PABPN1 on the proximal APA sites.Additionally,SNRNP70 can also promote the proximal APA sites by recruiting CPSF6,suggesting that the function of CPSF6 on APA is related with other RNA-binding proteins and cell context-dependent.Consequently,these results reveal that,on the contrary to U1 snRNP complex,the free proteins of U1 snRNP complex can promote proximal APA sites through the interaction with 3end processing machinery.Zhijie Hu Mengxia Li Zhanfeng Huo Liutao Chen Susu Liu Ke Deng Xin Lu Shangwu Chen Yonggui Fu Anlong Xu 2022Journal of Molecular Cell Biology2022,14,8:0
20Encapsulation of polyethylene glycol in cellulose-based porous capsules for latent heat storage and light-to-thermal conversion显示文摘Phase change materials are potential candidates for the application of latent heat storage.Herein,we fabricated porous capsules as shape-stable materials from cellulose-based polyelectrolyte complex,which were first prepared using cellulose 6-(N-pyridinium)hexanoyl ester as the cationic polyelectrolyte and carboxymethyl cellulose as the anionic polyelectrolyte to encapsulate polyethylene glycol by the vacuum impregnation method.Furthermore,the multi-walled carbon nanotube or graphene oxide,which were separately composited into the polyelectrolytes complex capsules to enhance thermal conductivity and light-to-thermal conversion efficiency.These capsules owned a typical core–shell structure,with an extremely high polyethylene glycol loading up to 34.33 g∙g^(‒1).After loading of polyethylene glycol,the resulted cellulose-based composite phase change materials exhibited high thermal energy storage ability with the latent heat up to 142.2 J∙g^(‒1),which was 98.5%of pure polyethylene glycol.Further results showed that the composite phase change materials demonstrated good form-stable property and thermal stability.Moreover,studies involving light-to-thermal conversion determined that composite phase change materials exhibited outstanding light-to-thermal conversion performance.Considering their exceptional comprehensive features,innovative composite phase change materials generated from cellulose presented a highly interesting choice for thermal management and renewable thermal energy storage.Jiangwei Li Lina Meng Jiaxuan Chen Xu Chen Yonggui Wang Zefang Xiao Haigang Wang Daxin Liang Yanjun Xie 2023Frontiers of Chemical Science and Engineering2023,17,8:0
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