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13篇 您的检索式:作者名="FENG ShiGang"
    题名 作者 年代 出处 被引量
1Mechanism of intercalation and deintercalation of lithium ions in graphene nanosheets显示文摘Graphene nanosheets (GNSs) were synthesized by reducing exfoliated graphite oxides. Their structure, surface morphology and lithium storage mechanism were characterized and investigated systematically using X-ray diffraction, atomic force microscopy, scanning electron microscopy, charge-discharge tests, cyclic voltammetry and electrochemical impedance spectroscopy. It was found that the GNSs, which were obtained via chemical synthesis, were primarily less than 10 graphene layers. The GNS electrodes, which were fabricated from the reduced GNSs, exhibited an enhanced reversible lithium storage capacity and good cyclic stability when serving as anodes in lithium-ion batteries. Also, the first-cycle irreversible capacities of the system were relatively high, because of the formation of a solid electrolyte interphase film on the surface of the GNS electrode and the spontaneous stacking of GNSs during the first lithiation. The electrochemical impedance spectroscopy results suggest that the solid electrolyte interphase film on the GNS electrode during first lithiation were primarily formed at potentials between 0.95 and 0.7 V. Also, the symmetry factor of the charge transfer was measured to be 0.446.TIAN LeiLei ZHUANG QuanChao LI Jia SHI YueLi CHEN JianPeng LU Feng SUN ShiGang 2011Chinese Science Bulletin2011,56,30:11
2Understanding divergent domestication traits from the whole-genome sequencing of swamp-and river-buffalo populations显示文摘Domesticated buffaloes have been integral to rice-paddy agro-ecosystems formillennia,yet relatively little is known about the buffalo genomics.Here,we sequenced and assembled reference genomes for both swamp and river buffaloes and we re-sequenced 230 individuals(132 swamp buffaloes and 98 river buffaloes)sampled from across Asia and Europe.Beyond the many actionable insights that our study revealed about the domestication,basic physiology and breeding of buffalo,we made the striking discovery that the divergent domestication traits between swamp and river buffaloes can be explained with recent selections of genes on social behavior,digestion metabolism,strengths and milk production.Xier Luo Yu Zhou Bing Zhang Yi Zhang Xiaobo Wang Tong Feng Zhipeng Li Kuiqing Cui Zhiqiang Wang Chan Luo Hui Li Yanfei Deng Fenghua Lu Jianlin Han Yongwang Miao Huaming Mao Xiaoyan Yi Cheng Ai Shigang Wu Alun Li Zhichao Wu Zijun Zhuo Do Da Giang Bikash Mitra Mohammad Farhad Vahidi Shahid Mansoor Sahar Ahmed Al-Bayatti Eka Meutia Sari Neena Amatya Gorkhali Sigit Prastowo Laiba Shafique Guoyou Ye Qian Qian Baoshan Chen Deshun Shi Jue Ruan Qingyou Liu 2020National Science Review2020,7,3:3
3Comprehensive test stand for high-intensity cyclotron development显示文摘A comprehensive test stand for high-intensity cyclotron development,a 10 MeV 430 μA cyclotron,has been successfully constructed at China Institute of Atomic Energy (CIAE) for the experimental verification of the viability of a 100 MeV high-intensity cyclotron (CYCIAE-100) being constructed at CIAE.The verification includes the overall design technology,detail design and engineering technology for the crucial parts of the machine,e.g.main magnet and beam diagnostics.It will also pave the way for future enhancement of the beam intensity.The test stand consists of a H-ion source,axial injection system,central region,main magnet and coil,RF resonator,stripping extraction,and auxiliary systems,which include the RF power amplifier,high voltage and DC power supplies,electric apparatus,beam diagnostics,control,vacuum,water cooling,pneumatic system,and safety interlock.This paper presents the work regarding the design and sub-system development of the test sand,and the results of the beam commissioning of the machine.ZHANG TianJue LI ZhenGuo CHU ChengJie XING JianSheng GUAN FengPing ZHONG JunQing JI Bin GE Tao YIN ZhiGuo HOU ShiGang PAN GaoFeng YAO HongJuan LU YinLong WANG ZhenHui WU LongCheng LIN Jun JIA XianLu WEI SuMin WEN LiPeng WANG Feng XIA Le CAI HongRu XIE HuaiDong CHEN RongFan ZHANG Yan ZHANG SuPing LIU GengShou ZOU Jian AN ShiZhong YANG JianJun BI YuanJie YANG Fang 2011Chinese Science Bulletin2011,56,3:3
4BmCH25H,a vertebrate interferon-stimulated gene(ISG)homolog,inhibits BmNPV infection dependent on its hydroxylase activity in Bombyx mori显示文摘Cholesterol-25-hydroxylase(CH25H)has been identified as an interferon-stimulated gene(ISG)in mammals that exerts its antiviral effects by catalyzing the conversion of cholesterol to 25-hydroxycholesterol(25HC).However,invertebrates lack an antiviral system homologous to vertebrate interferons(IFNs)because the genomes of invertebrates do not encode IFN-like cytokines.Nevertheless,CH25H is present in insect genomes and it therefore deserves further study of whether and by which mechanism it could exert an antiviral effect in invertebrates.In this study,the Bombyx mori CH25H(BmCH25H)gene,of which the encoded protein has high homology with other lepidopteran species,was identified and located on chromosome 9.Interestingly,we found that the expression of BmCH25H was significantly upregulated in B.mori nucleopolyhedrovirus(BmNPV)-infected BmN cells and silkworm(B.mori)larvae at the early infection stage.The inhibitory effect of BmCH25H on BmNPV replication was further demonstrated to depend on its catalytic residues to convert cholesterol to 25HC.More importantly,we demonstrated that during BmNPV infection,BmCH25H expression was increased through the Janus kinase–signal transducer and activator of transcription(JAK–STAT)pathway,similar to the induction of ISGs following virus infection in vertebrates.This is the first report that CH25H has antiviral effects in insects;the study also elucidates the regulation of its expression and its mechanism of action.Hongyun Wu Junming Xia Shigang Fei Yeyuan Wang Mengmeng Zhang Yiyao Guo Xian Li Luc Swevers Jingchen Sun Min Feng 2023Insect Science2023,30,2:2
5Deactivations during the numerical processing显示文摘Deactivation has been encountered frequently in functional brain imaging researches. However, the deactivations during the numerical processing have not been reported yet. In this study, the functional magnetic resonance imaging (fMRI) was employed to investigate the pattern of the deactivation in the brain of 15 healthy subjects during the numerical addition task. Analyses revealed significant deactivations in several brain regions, including the posterior cingulate, precuneus, anterior cingulate and prefrontal cortex. Especially, we found notable deactivation in bilateral insula. Accounting for the cognitive functions of these regions participating in a combinated way, we discuss their contributions in sustaining the brain activity during conscious resting state, and indicate that the insula is an important area of gathering auditory information from the external world.FENG HongBo ZHANG Ye TANG YiYuan JIN Jing DONG Feng FENG ShiGang ZHANG WuTian 2007Chinese Science Bulletin2007,52,13:1
6The task dependent interaction of the deactivation regions显示文摘Although deactivation has been found frequently in former functional brain imaging researches, only recently has it become a focus of systematic study because of its not well understood physiological mechanism. However, most of the researches concentrated on the brain areas that would present de-activation, and, to our knowledge, the deactivation connectivity between these brain areas during the cognitive tasks has rarely been reported in literature. In this work, using the functional connectivity method WICA (within-condition interregional covariance analysis), we analyzed the deactivations in two different cognitive tasks――symbol orientation and number comparison. The results revealed deactivations in the posterior cingulate, precuneus, anterior cingulate and prefrontal cortex in both tasks. However, the interaction between the deactivated regions shows many differences. Our result further indicates that the potential implication of special deactivation connectivity may be related to the different task or attention resource. Further research is needed to clarify the exact reason.ZHANG Ye FENG ShiGang FENG HongBo DONG Feng TANG YiYuan 2008Chinese Science Bulletin2008,53,10:1
7Research on Hot Gunning Repairing in Laboratory显示文摘The lining of blast furnace may be damaged partly,so that gunning repair is needed. The bonding strength of boundary surface between the repairing layer and remained lining of blast furnace has been studied by thermal simulation.The factors influencing the bonding strength are the ingredient gunning repair temperature,remained lining condition and water content of gunning refractory.The bonding strength decreases with the increases of remained lining temperature.CAO Feng, LONG Shigang, MENG Qingmin, SUN Jialin and HONG Yanruo(1 Institute of Metallurgy and Materials, Anhui University of Technology, Ma’ anshan, China) (2 Institute of Metallurgy, University of Science and Technology Beijing, Beijing 100083, China) 2003China's Refractories2003,12,1:1
8Study on Methods of Determining Gas Extraction Radius with Numerical Simulation显示文摘Wu Bing Hua Mingguo Feng Xiaoyan Guo Shigang 2012Procedia Engineering2012,,:1
9Modified room temperature solid-state synthesis of yttria-stabilized zirconia(YSZ) nano-powders for solid oxide fuel cells显示文摘High-performance solid oxide fuel cell(SOFC) is in urgent need of high-quality electrolyte powders with high reactivity and chemical uniformity.Here,8 mol% Y_(2)O_(3) doped ZrO_(2)(YSZ) nano-powders were synthesized by an improved solid-state reaction method at ambient temperature,and were applied to the fabrication of SOFC electrolytes.YSZ nano-powders show average grain sizes of ^(2)0 nm and high dispersibility,which is comparable with or even better than some other chemical methods.Benefitting from their high reactivity,dense YSZ electrolytes(relative density of 97.9%) can be obtained at a relatively low sintering temperature of 1400℃.The optimized electrical conductivity reaches up to a high value of0.034 S/cm at 800 0C in air.The anode supported single cell with the construction of Ni-YSZ/YSZ/Sm_(0.2)Ce_(0.8)O_(2-δ)(SDC)/La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3-δ)(LSCF) exhibits the peak power density of 0.827 W/cm^(2) at800℃ while taking wet H_(2) as fuels and ambient air as oxidants.Xiaoqian Xu Yurun Feng Zhaoyu Zhong Xue Guo Zhenhao Zhang Jiao Li Shikai Zhao Shigang Wu Haibin Sun 2023Journal of Rare Earths2023,41,9:0
10Design and Implementation of Safety Interlock System for Medical Small Cyclotron显示文摘Serial No.101room of the serial upgrade engineering Department 201is used as a test site for medical small cyclotrons and central area test benches.In the future,accelerator commissioning and beaming time will gradually increase.The original door interlock system wasLIU Zhenwei HOU Shigang LI Zhenguo GE Tao WANG Feng 2017Annual Report of China Institute of Atomic Energy2017,,1:0
11Inhibition of Differentiation by Transforming Growth Factor β1 in Rhabdomyosarcoma Cells显示文摘OBJECTIVE To study the effect of transforming growth factor?1 (TGF-β1)on differentiation of rhabdomyosarcoma(RMS)cells METHODS RD(human embryonal RMS cell line)cells,cultured in differentiation medium containing 9-cis retinoic acid(9CRA),were treated with TGF-β1.Proliferation of the cells was examined by the MTT assay.The differentiation specific proteins(sarcomeric actin and MyHC)and myogenic transcription factors(MyoD1 and myogenin)in the RD cel s were assessed by immunofluorescence staining. RESULTS Compared to control cel s,treatment with lower concentrations of TGF-?1(0.1 and 0.2 ng/ml)induced an increase in OD values after 4 d(P<0.01),whereas higher concentrations of TGF-?1(2 and 5 ng/ml)led to a reduction of cell viability(P<0.01).After exposure to 9CRA,the viability of the cells decreased significantly(P<0.01),while sarcomeric actin,MyHC and myogenin were induced.These changes were antagonized by TGF-β1(0.1 ng/ml).No changes were observed in expression of MyoD1. CONCLUSION The RMS cells,derived from myogenic progenitors are committed to a myogenic fate,but are arrested in the differentiation course by the addition of TGF-?1 which represses some of the myogenic transcription factors.Shouli Wang Huihua Yao Zhenghong Qin Shigang Li Yizhong Feng Xiuzhen Wang Min Deng Lingling Guo Lifeng Zhang 2007Chinese Journal of Clinical Oncology2007,4,5:0
12Construction risks of Huaying mount tunnel and countermeasures显示文摘Haibo YAO Feng GAO Shigang YU Wei DANG 2017Frontiers of Structural and Civil Engineering2017,11,3:0
13The piRNA pathway is required for nucleopolyhedrovirus replication in Lepidoptera显示文摘The Piwi-interacting RNA(piRNA)pathway has been shown to be involved in the antiviral defense against RNA viruses,especially in mosquitoes,but its universality has been questioned.Here,we used the Bombyx mori nucleopolyhedrovirus(BmNPV)-infected silkworm as a model to explore the effects of the key factors of piRNA pathway,BmAgo3 and Siwi,on replication of a large DNA virus(belonging to the family of Baculoviridae).We demonstrated that BmAgo3 and Siwi could promote the replication of BmNPV through both overexpression and knockdown experiments in BmN cell lines and silkworm larvae.In addition,we also studied the effect of PIWI-class genes on Autographa californica nucleopolyhedrovirus(AcMNPV)replication in the Spodoptera frugiperda cell line Sf9.By knocking down the expression of PIWI-class genes in Sf9,we found that Piwi-like-1 and Piwi-like-2-3 could inhibit AcMNPV replication,while Piwi-like-4-5 promoted virus replication.Our study provides compelling evidence that the piRNA pathway affects host infection by exogenous viruses in Lepidoptera.Also,our results reflect the diversity of the roles of PIWI-class genes in virus infection of the host across species.This study is the first to explore the interaction of PIWI-class proteins with DNA viruses,providing new insights into the functional roles of the piRNA pathway.Junming Xia Shigang Fei Hongyun Wu Yifan Yang Wensheng Yu Mengmeng Zhang Yiyao Guo Luc Swevers Jingchen Sun Min Feng 2023Insect Science2023,30,5:0
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