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39篇 您的检索式:作者名="Peng Cen"
    题名 作者 年代 出处 被引量
1Simultaneous oxidation of NO,SO_2 and Hg^0 from flue gas by pulsed corona discharge显示文摘A process capable of simultaneously oxidizing NO,SO2,and Hg0 was proposed,using a high-voltage and short-duration positive pulsed corona discharge.By focusing on NO,SO2,and Hg0 oxidation effciencies,the influences of pulse peak voltage,pulse frequency,initial concentration,electrode number,residence time and water vapor addition were investigated.The results indicate that NO,SO2 and Hg0 oxidation effciencies depend primarily on the radicals(OH,HO2,O) and the active species(O3,H2O2,etc.) produced by the pulsed corona discharge.The NO,SO2 and Hg0 oxidation effciencies could be improved as pulse peak voltage,pulse frequency,electrode number and residence time increased,but they were reduced with increasing initial concentrations.By adding water vapor,the SO2 oxidation effciency was improved remarkably,while the NO oxidation effciency decreased slightly.In our experiments,the simultaneous NO,SO2,and Hg0 oxidation effciencies reached to 40%,98%,and 55% with the initial concentrations 479 mg/m3,1040 mg/m3,and 15.0 μg/m3,respectively.XU Fei,LUO Zhongyang,CAO Wei,WANG Peng,WEI Bo,GAO Xiang,FANG Mengxiang,CEN Kefa State key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China. 2009Journal of Environmental Sciences2009,21,3:22
2Complete genome sequence of the rifamycin SV-producing Amycolatopsis mediterranei U32 revealed its genetic characteristics in phylogeny and metabolism显示文摘Amycolatopsis mediterranei 被用于 rifamycin 的工业规模生产,它在 antimycobacterial 治疗起一个重要作用。作为类 Amycolatopsis 的首先定序的染色体, 236 715 底配对的包括 10 的紧张 U32 的染色体,最大的原核生物的染色体之一到目前为止曾经被定序。不同于在 streptomycetes 发现的线性拓扑学,这个染色体是圆形的,特别地类似于 Saccharopolyspora erythraea 和奴卡氏菌属 farcinica,在发展史和分类代表他们的靠近的关系。尽管在 A 预言了 9 228 编码蛋白质的基因。mediterranei 染色体 S 与那些分享了 orthologs 的最大的数字。erythraea,它被 Streptomyces coelicolor 而非 N 出人意料地跟随。farcinica,显示不同新陈代谢的特征经由改编演变到多样的生态的壁龛。除类似于那的一个核心区域以外在 streptomycetes 普通,有典型核心特征的一个新奇“伪核心”在非核心区域以内被定义,在 21 从 26 基因为第二等的代谢物生产聚类的总数被定位的地方。位于核心的 rifamycin 生合成基因簇为 rifamycin SV 的变换编码细胞色素 P450 酶必需品到 B,由比作 rifamycin 生产 B 紧张 S699 的高度相应的簇揭示了并且进一步由基因互补证实了。A 的 genomic 信息。mediterranei 表明在看起来复杂的规章的机制的控制下面不仅为各种各样的碳来源和无机的氮混合物的广泛的利用而且为新陈代谢的中介的有效 funneling 安排进第二等的抗菌素合成进程的一个新陈代谢的网络。Wei Zhao Yi Zhong Hua Yuan Jin Wang Huajun Zheng Ying Wang Xufeng Cen Feng Xu Jie Bai Xiaobiao Han Gang Lu Yongqiang Zhu Zhihui Shao Han Yan Chen Li Nanqiu Peng Zilong Zhang Yunyi Zhang Wei Lin Yun Fan Zhongjun Qin Yongfei Hu Baoli Zhu Shengyue Wang Xiaoming Ding Guo-Ping Zbao 2010Cell Research2010,20,10:10
3Destruction of PCDD/Fs by gliding arc discharges显示文摘PCDD/Fs 被变得一个严肃的问题因为他们的毒物学的效果和联系不利健康含意。在这研究,滑行的弧血浆为 polychlorinated dibenzo-p-dioxins (PCDD ) 和 polychlorinated dibenzofurans (PCDF ) 的处理被测试,它在 350 ° C 处于大气的状况从五氯苯酚被综合与或没有 CuCl2 的催化作用。从实验,我们发现在滑行以后的 PCDD/F 相当或相同事物的破坏效率是分泌物从 25% ~ 79%。这结果证明那滑行的弧血浆是一种有效技术在烟道气体分解 PCDDs/Fs。为由滑行的弧的 PCDD/Fs 的貌似合理的降级机制被讨论。最后,滑行的弧的多级式的反应堆结构被建议为 PCDD/Fs 升级移动效率。YAN Jian-hua PENG Zheng LU Sheng-yong DU Chang-ming LI Xiao-dong CHEN Tong NI Ming-jiang CEN Ke-fa 2007Journal of Environmental Sciences2007,19,11:9
4Removal of PCDDs/Fs from municipal solid waste incineration by entrained-flow adsorption technology显示文摘Entrained flow adsorption using activated carbon as the adsorbent is widely adopted for PCDDs/Fs-abatement in municipal solid waste incineration (MSWI) process. The effects of operating parameters including flue gas temperature, feeding rate of activated carbon, polychlorinated dibenzodioxins and polychlorinated dibenzofurans (PCDDs/Fs) concentration at the inlet of the air pollution control device (APCD), filter materials, pressure drop on PCDDs/Fs removal efficiency are reviewed and commented upon in this paper. Evaluation on the various mechanistic models for entrained flow adsorption is carried out based on the computational simulation in terms of the actual operating condition and theoretical analysis. Finally, an advancement of en- trained flow adsorption in combination of dual bag filter is introduced.YAN Jian-hua PENG Zheng LU Sheng-yong LI Xiao-dong CEN Ke-fa 2006Journal of Zhejiang University-Science A(Applied Physics & Engineering)2006,7,11:8
5Molar-Tooth Structure from the Mesoproterozoic Wumishan Formation in Lingyuan,Yanshan Region,North China,and Geological Implications显示文摘Although its origin has not yet reached a consensus so far,MTS(Molar-Tooth Structure) has been documented for more than 100 years.Current study reports a discovery of MTS from the Mesoproterozoic Wumishan Formation,Lingyuan,Yanshan Region,North China,and the features and geological implications of MTS are further discussed.Here,straitigraphic horizons of MTS's occurrences show that it was mainly located within the top part of the Wumishan Formation,i.e.,limestone unit.Four kinds of morphology of MTS,i.e.,fine fusiform,debris,ribbon,ptigmatic and nodular(irregular),were recognized and thought to be highly related to the sedimentary environments and facies.Geochemistry of MTS including oxides,trace elements and C,O and Sr isotopes indicates that the horizons of MTS-bearing is of higher Sr/Ba and Ca/Mg ratios,lower positive δ13C and highly negative δ18O values than the adjacent stratigraphic levels of rare MTS.Lithology,morphology and geochemistry of MTS in the Wumishan Formation suggest that MTS occurs mainly in shallow subtidal near the storm wave base,which is typically characterized by warm temperature,oversaturated calcium carbonate seawater and high organic productivity.Furthermore,occasional enrichment of algae bacteria here is more favorable for the calcification of calcium oozes and catalytic for MTS.C isotope composition of the Wumishan Formation and MTS of this study is well correlated with that of the Mesoproterozoic Belt Supergroup,North America and Riphean,Siberia,suggesting that MTS acts as a sedimentary record responding to global changes and is a perfect indicator in Precambrian stratigraphic correlation worldwide.KUANG Hongwei LIU Yongqing PENG Nan LUO Shunshe LI Jiahua CEN Chao CHEN Mingpei 2012Acta Geologica Sinica(English Edition)2012,86,1:7
6Metformin activates chaperone-mediated autophagy and improves disease pathologies in an Alzheimer disease mouse model显示文摘Chaperone-mediated autophagy(CMA)is a lysosome-dependent selective degradation pathway implicated in the pathogenesis of cancer and neurodegenerative diseases.However,the mechanisms that regulate CMA are not fully understood.Here,using unbiased drug screening approaches,we discover Metformin,a drug that is commonly the first medication prescribed for type 2 diabetes,can induce CMA.We delineate the mechanism of CMA induction by Metformin to be via activation of TAK1-IKKα/β signaling that leads to phosphorylation of Ser85 of the key mediator of CMA,Hsc70,and its activation.Notably,we find that amyloid-beta precursor protein(APP)is a CMA substrate and that it binds to Hsc70 in an IKKα/β-dependent manner.The inhibition of CMA-mediated degradation of APP enhances its cytotoxicity.Importantly,we find that in the APP/PS1 mouse model of Alzheimer's disease(AD),activation of CMA by Hsc70 overexpression or Metformin potently reduces the accumulated brain Aβplaque levels and reverses the molecular and behavioral AD phenotypes.Our study elucidates a novel mechanism of CMA regulation via Metformin-TAK1-IKKα/β-Hsc70 signaling and suggests Metformin as a new activator of CMA for diseases,such as AD,where such therapeutic intervention could be beneficial.Xiaoyan Xu Yaqin Sun Xufeng Cen Bing Shan Qingwei Zhao Tingxue Xie Zhe Wang Tingjun Hou Yu Xue Mengmeng Zhang Di Peng Qiming Sun Cong Yi Ayaz Najafov Hongguang Xia 2021Protein & Cell2021,12,10:5
7Clinical and microbiological characterization of Clostridium difficile infection in a tertiary care hospital in Shanghai, China显示文摘Dong Danfeng Peng Yibing Zhang Lihua Jiang Cen Wang Xuefeng Mao Enqiang 2014Chinese Medical Journal2014,,9:3
8Effectiveness and Safety of a Novel Approach for Management of Patients with Potential Difficult Mask Ventilation and Tracheal Intubation: A Multi-center Randomized Trial显示文摘Ji-Ming Wang Er-Li Ma Qing-Ping Wu Ming Tian Yan-Yan Sun Jing Lin Liang Peng Qiang Xu Wei Wei Hong Tan Cen Yang Xiao-Qiang Li Yun-Xia Zuo Jin Liu 2018Chinese Medical Journal2018,,6:3
9Isoconversional kinetic analysis of decomposition of bastnaesite concentrates with calcium hydroxide显示文摘Isoconversional methods combined with thermogravimetry were applied to investigate the decomposition kinetics of bastnaesite concentrates with different amounts of calcium hydroxide added.The apparent activation energy was calculated,and the results indicate that the overall reaction involves more than one single step.The reaction with a lower content(<15 wt%)of calcium hydroxide can be divided into two steps,while the reaction with a higher content(>15 wt%)involves another step which denotes the decomposition of newly formed calcium carbonate during roasting.The activation energy increases with increasing amount of calcium hydroxide in the lower range(0-15 wt%).This is due to the resistance of calcium hydroxide to heat and mass transport,However,more calcium can promote the decomposition reaction more effectively and thus reduce the activation energy.Nonlinear fitting was performed by fitting the experimental data to Avrami-Erofeev model to determine the reaction model and pre-exponential factor.The theoretical models were proven to be reliable for kinetic prediction.Peng Cen Xue Bian Wenyuan Wu 2020Journal of Rare Earths2020,38,12:3
10Small molecular compounds inhibit HIV-1 replication through specifically stabilizing APOBE-C3G显示文摘Cen S Peng Z G Li X Y 2010J Biol Chem2010,285,16:1
11Heterogeneous ultrathin films of poly(vinyl aleohol)/layered double hy- droxide and montmorillonite nanosheets via layer-by-layer assembly显示文摘Huang Shu Cen Xi Peng Hongdan 2009J Phys Chem B2009,113,15:1
12Small molecular inhibitors for HIV-1 replication through specifically stabilizing APOBEC3G 显示文摘Cen S Peng Z Li X Y 2010Biol Chem2010,285,16:1
13Effects of Guangxi Hepu Pearl Hydrolysate on Proliferation Activity and Apoptosis of Human Hepatic Stellate Cells显示文摘[Objective] The paper was to observe the effects of Guangxi Hepu pearl hydrolysate on proliferation and apoptosis of human hepatic stellate cells. [Method] The inhibition rate against the proliferation of human hepatic stellate cells was determined by MTT colorimetry after co-incubation with pearl hydrolysate for 48 h. The percentage of early and late apoptotic cells was determined by flow cytometry(Annexin V-FITC/PI staining). [Result] Low, medium and high concentrations of pearl hydrolysate could inhibit the proliferation of human hepatic stellate cells, and the inhibition rates at 48 h were 12.4%, 27.4% and 37.8%, respectively. The low, medium and high concentrations of pearl hydrolysate could induce the apoptosis of cells. The percentages of total apoptotic cells(early apoptotic + late apoptotic) at 48 h were 8.97%, 16.09% and 26.98%, respec-tively. [Conclusion] Pearl hydrolysate can inhibit the proliferation of human hepatic stellate cells and induce the apoptosis of these cells, which may be the mechanism of anti-hepatic fibrosis effect of pearl hydrolysate. These effects are dose-dependent. It is also found that the above cellular effects of high dose pearl hydrolysate are stronger than those of colchicine and compound Biejiaruangan tablets.Yue Peng Quansheng Feng Jiang Lin Tiejian Zhao Peng Liu Yanhui Cen 2021Plant Diseases and Pests2021,12,3:1
14Recent advances in the research and development of human defensins显示文摘Haiqin Chen Zhinan Xu Li Peng Xiangming Fang Xiufei Yin Naizheng Xu Peilin Cen 2005Peptides2005,,4:1
15Small molecular compounds inhibit HIV-1 replication through specifically stabilizing APOBEC3G 显示文摘Cen S Peng Z G Li X Y 2010JBiolChem2010,285,16:1
16Small molecular compounds inhibit HIV -1 replication through specifically stabilizing APOBEC3G显示文摘Cen S Peng ZG Li XY 2010J Bioi Chern2010,285,16:1
17Exploration on the Reform of PBL Mode of Course:Comprehensive Experiment of Basic Medicine for Nursing Undergraduates in Colleges and Universities of Traditional Chinese Medicine显示文摘The undergraduate education of nursing science produces higher practical operational talents to the society,and the importance of experimental teaching cannot be ignored in the training of nursing students.The basic experimental teaching method of undergraduate nursing has been explored and reformed by the College of Basic Medicine of Guangxi University of Chinese Medicine.After the reform,the experimental teaching adopts the teaching method of PBL mode,and the experimental course is composed of several specific and important medical problems.The specific tasks involved in each problem include relevant morphological knowledge,functional knowledge,diagnostic and laboratory knowledge,and clinical medical knowledge.It makes the teaching content of experimental course more comprehensive,and leads to the transition from basic medicine to clinical medicine.This has gradually and effectively improved the practical ability,scientific research thinking,clinical comprehensive ability and learning interest of undergraduate nursing students.Yue PENG Tiejian ZHAO Jiang LIN Meng XIA Yanfei WEI Yanhui CEN 2020Medicinal Plant2020,11,4:1
18Small molecular compounds inhibit HIV-lreplication through specifically stabilizing APO- BEC3G显示文摘CEN S PENG ZG LI XY 2010JBiolChem2010,285,16:1
19Heterogeneous Ultrathin Films of Poly(vinyl alcohol)/Layered Double Hydroxide and Montmorillonite Nanosheets via Layer-by-Layer Assembly显示文摘Huang S Cen X Peng H D 2009Journal of Physical Chemistry B2009,113,15:1
20Characterization and ultraviolet-visible shielding property of samarium-cerium compounds containing Sm_(2)O_(2)S prepared by co-precipitation method显示文摘Since ultraviolet(UV)light,as well as blue light,which is part of visible light,is harmful to skin,samarium-cerium compounds containing Sm_(2)O_(2)S were synthesized by co-precipitation method.This kind of compounds blocks not only UV light,but also blue light.The minimum values of average transmittance(360-450 nm)and band gap of samarium-cerium compounds were 8.90%and 2.76 eV,respectively,which were less than 13.96%and 3.01 eV of CeO_(2).Elemental analysis(EA),X-ray diffraction(XRD),Fourier transformation infrared(FTIR),and Raman spectra determined that the samples contained Ce_(4)O_(7),Sm_(2)O_(2)S,Sm_(2)O_(3),and Sm_(2)O_(2)SO_(4).The microstructure of samples was analyzed by scanning and transmission electron microscopies(SEM and TEM).X-ray photoelectron spectrum(XPS)showed that cerium had Ce^(3+)and Ce^(4+) valence states,and oxygen was divided into lattice oxygen and oxygen vacancy,which was the direct cause of the decrease of average transmittance and band gap.Yanping Li Xue Bian Xun Jin Peng Cen Wenyuan Wu Gaofeng Fu 2022International Journal of Minerals,Metallurgy and Materials2022,29,9:1
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