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| 1 | Electrochemical synthesis of ammonia using a cell with a Nafion membrane and SmFe_(0.7)Cu_(0.3-x)Ni_xO_3(x=0―0.3) cathode at atmospheric pressure and lower temperature显示文摘Samaria-doped ceria Ce0.8Sm0.2O2-δ(SDC) and SmFe0.7Cu0.3-xNixO3 have been synthesized by the sol-gel method and characterized by X-ray diffraction(XRD),transmission electron microscopy(TEM) and scanning electron microscopy(SEM).The electrochemical synthesis of ammonia was investigated at atmospheric pressure and low temperature,using the SFCN materials as the cathode,a Nafion membrane as the electrolyte,nickel-doped SDC(Ni-SDC) as the anode and silver-platinum paste as the current collector.Ammonia was synthesized from 25 to 100℃ when the SFCN materials were used as cathode,with SmFe0.7Cu0.1Ni0.2O3 giving the highest rates of ammonia formation.The maximum rate of evolution of ammonia was 1.13 × 10-8 mol·cm-2·s-1 at 80℃,and the current efficiency reached as high as 90.4%. | XU GaoChao,LIU RuiQuan & WANG Jin College of Chemistry and Chemical Engineering,Xinjiang University,Urumqi 830046,China | 2009 | Science China Chemistry2009，52，8： | 11 |
| 2 | 考虑喷口烧蚀影响的高压断路器电弧仿真(英文)显示文摘In order to investigate the influence of nozzle ablation to arc,a 2-D axisymmetric magneto-hydro-dynamics arc model is developed to simulate the arc behavior during the whole interruption process in a puffer-type high voltage circuit breaker,considering the nozzle ablating and the mixing process of Polytetrafluoroethylene(PTFE) vapor with SF6.The results show that the arc radius firstly increases and then decreases as arc current varies according to its sinusoida waveform.At 3.5 ms after arc initiation the nozzle ablation starts,and 2.5 ms later the current nearly reaches its peak value and nozzle ablation develops intensely.Meanwhile the nozzle is blocked by arc at this time and consequently the vapor concentration in nozzle reaches the highest.Then while the current decreasing and open distance increaseing the vapor concentration gradually decreases.Before current zero the extinction peak of arc voltage occurs.It indicates that the PTFE vapor enhances pressure rise in arc quenching chamber and strengthens the arc blocking effect on nozzle;the arc radius is wider and arc temperature is lower when nozzle ablation is considered. | JIANG Xu ZHONG Jianying ZHANG Youpeng ZHANG Gaochao LI Xingwen JIA Shenli | 2013 | 高电压技术2013，39，4： | 11 |
| 3 | A Load Balancing Model Based on Cloud Partitioning for the Public Cloud显示文摘Load balancing in the cloud computing environment has an important impact on the performance. Good load balancing makes cloud computing more efficient and improves user satisfaction. This article introduces a better load balance model for the public cloud based on the cloud partitioning concept with a switch mechanism to choose different strategies for different situations. The algorithm applies the game theory to the load balancing strategy to improve the efficiency in the public cloud environment. | Gaochao Xu Junjie Pang Xiaodong Fu | 2013 | Tsinghua Science and Technology2013，18，1： | 7 |
| 4 | Mammalian ALKBH1 serves as an N^6-mA demethylase of unpairing DNA显示文摘N^6-methyladenine(N^6-mA)of DNA is an emerging epigenetic mark in mammalian genome.Levels of N^6-mA undergo drastic fluctuation during early embryogenesis,indicative of active regulation.Here we show that the 2-oxoglutarate-dependent oxygenase ALKBH1 functions as a nuclear eraser of N^6-mA in unpairing regions(e.g.,SIDD,Stress-Induced DNA Double Helix Destabilization regions)of mammalian genomes.Enzymatic profiling studies revealed that ALKBH1 prefers bubbled or bulged DNAs as substrate,instead of single-stranded(ss-)or double-stranded(ds-)DNAs.Structural studies of ALKBH1 revealed an unexpected“stretch-out”conformation of its“Flip1”motif,a conserved element that usually bends over catalytic center to facilitate substrate base flipping in other DNA demethylases.Thus,lack of a bending“Flip1”explains the observed preference of ALKBH1 for unpairing substrates,in which the flipped N^6-mA is primed for catalysis.Co-crystal structural studies of ALKBH1 bound to a 21-mer bulged DNA explained the need of both flanking duplexes and a flipped base for recognition and catalysis.Key elements(e.g.,an ALKBH1-specificα1 helix)as well as residues contributing to structural integrity and catalytic activity were validated by structurebased mutagenesis studies.Furthermore,ssDNA-seq and DIP-seq analyses revealed significant co-occurrence of base unpairing regions with N^6-mA in mouse genome.Collectively,our biochemical,structural and genomic studies suggest that ALKBH1 is an important DNA demethylase that regulates genome N^6-mA turnover of unpairing regions associated with dynamic chromosome regulation. | Min Zhang Shumin Yang Raman Nelakanti Wentao Zhao Gaochao Liu Zheng Li Xiaohui Liu Tao Wu Andrew Xiao Haitao Li | 2020 | Cell Research2020，30，3： | 6 |
| 5 | Gut microbiome alterations and its link to corticosteroid resistance in immune thrombocytopenia显示文摘Quantitative metagenomic studies have linked the gut microbiota to autoimmune disorders.Here,we performed deep shotgun metagenomic sequencing of fecal samples from 99 immune thrombocytopenia(ITP)patients and 52 healthy controls.Dysbiosis in the gut microbiome of ITP was detected phylogenetically and functionally,and classifier based on species markers distinguished individuals with ITP from healthy controls.In particular,the abundance of Ruminococcus gnavus,Bifidobacterium longum and Akkermansia muciniphila was markedly increased in treatment-na?ve ITP patients,and the alterations of microbial species were correlated with clinical indices.Functionally,the secondary bile acid biosynthesis and flagellar assembly were depleted in the gut microbiota of ITP,which may contribute to the onset of ITP by affecting the immune system.Furthermore,we found that corticosteroid treatment affected the gut microbiome of ITP.Compared with corticosteroid-sensitive ITP patients,we identified that the corticosteroid-resistant ITP patients displayed a distinct gut microbiome,which was different from that of the treatment-na?ve ITP patients.Together,we provided support for the critical role of gut microbiota in the development of ITP and established a foundation for further research characterizing gut microbiota in relation to corticosteroid resistance of ITP. | Yanan Wang Fengqi Liu Gaochao Zhang Yan Su Xueyan Sun Qi Chen Chencong Wang Haixia Fu Yun He Xiaolu Zhu Xiao Liu Meng Lv Xiangyu Zhao Xiaosu Zhao Yueying Li Qianfei Wang Xiaojun Huang Xiaohui Zhang | 2021 | Science China(Life Sciences)2021，64，5： | 6 |
| 6 | CAUSES AND COUNTERMEASURES FOR CHAOHU LAKESHORE COLLAPSE显示文摘By interpreting the remote sensing data of aerial photos and satellite images in different time, combining with field investigation, landform and water level observation, collecting data of weather, hydrology in Chaohu Lake, Anhui Province from 1957 to 2003, the reasons for collapse of Chaohu lakeshore were analyzed. The results are as follows: 1) The collapse of the Chaohu lakeshore is controlled macroscopically by two sets of north-east and the north-west faults, and the degree of collapse is determined microcosmically by lithology. 2) The constant change of water level, resulting from precipitation, wind speed and its direction, is one of the main reasons for intermittence collapse. 3) The soil and water loss or mud and sand filling up, resulting from artificial factors, such as inconsequence control of Chaohu sluice or irrational agricultural and industrial activities, etc., can uplift the lake′s bed and drive water level up. The high water level also results in the collapse. Judging from the above mentioned reasons for the collapse, we have proposed some countermeasures: 1) Putting the lakeshore slope protection project such as stone and cement mortar into practice, and upstream slope should be 1∶2.5 or 1∶3, some parts of them should be 1∶4, if they were not stable. The back slope, which is from Gui Mountain to Zhongmiao Temple, should be 1∶1.5-1∶3. 2) Constructing a greenbelt for the lakeshore, planting some vegetation such as osier, bulrush and poplar, to resist waves between the high and the low water level. 3) Controlling Chaohu Lake water level scientifically. Corrosion of lakeshore that contains gravel clay and ferruginous-manganese concretionary structures, can decrease at low water level. 4) Renovating Chaohu Lake drainage area, strengthening the administration and supervision, breaking regionalism and establishing special administration organization. | GAOChao WANGXin-yuan YANGZe-dong LUYing-cheng HEHui | 2005 | Chinese Geographical Science2005，15，1： | 6 |
| 7 | Kinetic investigation of in situ growth of CdMoO_4 nano-octahedra显示文摘CdMoO4 nano-octahedra were grown in situ at room temperature by reverse-microemulsion.Energy evolution from this growth process was monitored using microcalorimetry.The microcalorimetric heat flow (MCHF) curve showed a characteristic endothermic peak for the initial reaction,and double discontinuous exothermic peaks for the subsequent crystal growth.Combined with complementary characterization techniques,the evolution of morphology and size of the CdMoO4 nano-octahedra were correlated with the MCHF peaks.Calculations based on the microcalorimetric results at 298.15 K provided rate constants of 7.56×10–5 s–1 for the reaction and nucleation process and 1.59×10–4 s–1 for the crystallization process. | LI YanFen JIANG JunYing FAN GaoChao MA YuJie HUANG ZaiYin | 2011 | Chinese Science Bulletin2011，56，3： | 3 |
| 8 | High doses of α-galactosylceramide potentiate experimental autoimmune encephalomyelitis by directly enhancing Th17 response显示文摘伪 - Galactosylceramide (伪 - GC ) 广泛地被知道激活不变的自然漂亮 T (iNKT ) 压制髓磷脂的房间抗原特定的 Th1 回答,保护易受影响的老鼠免于试验性的自体免疫的脑脊髓炎(EAE ) 。这里,我们表明那高加重,而非改善的伪 - GC 开 EAE 的意外发现。当与高剂量的伪 - GC 对待的 MOG35-55-specific T 房间被变成 na 时,类似的结果被观察 ? ve syngeneic 接受者老鼠。进一步的学习证明伪 - GC 的高剂量直接通过 STAT3 的 phosphorylation 和 NF-魏 B 的激活由 CD4+CD44+ 记忆 T 房间的激活提高 Th17 和 Th1 反应。不同于由伪 - GC 的低剂量的 iNKT 房间的激活,伪 - GC 的高剂量直接交往了, CD1d 在 T 房间上表示了并且激活 Th17 和 Th1 房间。而且,介绍抗原的房间(APC ) 主要表示 CD1d1,而 CD4+ T 房间快车 CD1d2 的多数。由 RNAi 的 CD1d1 或 CD1d2 基因表示击倒分别地防碍 iNKT 或 Th17/Th1 房间的激活。因此,伪 - GC 处理能改善或变得更坏由雇佣取决于剂量的 APC 或 Th17/Th1 房间的 EAE 使用了。 | Gaochao Qian Xia Qin Ying Qin Zang Baoxue Ge Taylor B Guo Bing Wan Lei Fang Jingwu Z Zhang | 2010 | Cell Research2010，20，4： | 3 |
| 9 | Effect of loss and coupling on the resonance of metamaterial:An equivalent circuit approach显示文摘In this work we establish an equivalent circuit model to analyze the resonace of the metamaterial considering the loss of the unit cell and coupling effect between them.From this model,we find that metamaterial can be divided into three categories:weak,critical and strong couplings,depending on the values of the loss and coupling strength,where the different resonant properties are presented.The physical reason of the division is whether the loss in each unit cell can be offset by energy coupling from the adjunct unit cells.Full-wave electromagnetic simulations have also been carried out to verify the equivalent circuit analysis.Our circuit analysis provides a simple and effective way to understand the coupling of the metamaterial and gives guidance for the analysis and design of the metamaterial. | ZHANG YongGang WU JingBo LIANG LanJu ZHOU GaoChao JIN BiaoBing FENG YiJun | 2014 | Science China(Information Sciences)2014，57，12： | 3 |
| 10 | Multidimensional clinical data denoising via Bayesian CP factorization显示文摘CANDECOMP/PARAFAC(CP) tensor factorization is an efficient technique for incomplete tensor-data processing through capturing the multilinear latent factors. Based on the incorporate a sparsity-inducing prior over multiple latent factors and appropriate hyper-priors over all hyper-parameters, a Bayesian-based hierarchical probabilistic CP factorization model could be formed. By this way, the rank of the incomplete tensor can be determined automatically. In this paper, we explored the tensor completion method in processing incomplete multidimensional electroencephalogram(EEG) and magnetic resonance imaging(MRI) clinical data. The empirical results indicated that the Bayesian CP tensor factorization of incomplete data method can effectively recover EEG signal with missing data and denoised the noisy MRI data. | CUI GaoChao ZHU Li GUI LiHua ZHAO QiBin ZHANG JianHai CAO JianTing | 2020 | Science China(Technological Sciences)2020，63，2： | 3 |
| 11 | Route design and automatic check in electronic chart display and information system显示文摘For an electronic chart display and information system ( ECDIS), the most important function is the route design. In this paper, a novel approach to developing ECDIS was given and then an effective method was proposed for route design and automatic check.The mathematical model and logical relationship for coordinate transformation were also provided. They were adopted in ECDIS developing, which was based on the research of the Vxworks real-time operating system. The actual system application implies that the method is practical and can help navigation very well. | ZHAOYu-xin TANGJi-qiang LIGang GAOChao | 2004 | Journal of Marine Science and Application2004，3，1： | 2 |
| 12 | A Novel Routing Method for Social Delay-Tolerant Networks显示文摘The lack of continuous connectivity and a complete path from source to destination makes node communication quite difficult in Delay-Tolerant Networks(DTNs). Most studies focus on routing problems in idealized network environments without considering social properties. Communication devices are carried by individuals in many DTNs; therefore, DTNs are unique social networks to some extent. To design efficient routing protocols for DTNs, it is important to analyze their social properties. In this paper, a more accurate and comprehensive metric for detecting the quality of the relationships between nodes is proposed, by considering the contact time, contact frequency, and contact regularity. An overlapping hierarchical community detection method is designed based on this new metric, and a tree structure is built. Furthermore, we exploit the overlapping community structure and the tree structure to provide message-forwarding paths from the source node to the destination node.The simulation results show that our Routing method based on Overlapping hierarchical Community Detection(ROCD) achieves better delivery rate than SimBet and Bubble Rap, the classic routing protocols, without affecting the average delay. | Xiangyu Meng Gaochao Xu Tingting Guo Yongjian Yang Wenxu Shen Kuo Zhao | 2019 | Tsinghua Science and Technology2019，24，1： | 2 |
| 13 | Aliphatic Hyperbranched Poly(amido amine)s (PAMAMs): Preparation and Modification显示文摘A series of water soluble aliphatic hyperbranched poly(amido amine)s(PAMAMs) with the same or similar chemical structure of poly(amido amine) dendrimer was successfully synthesized from commercially available AB and C_n types of monomers by one-pot polymerization via the couple-monomer methodology(CMM). The AB type monomer used in this paper was methyl acrylate, and C_n monomers were multi-amino compounds such as ethylenediamine(EDA), diethylenetriamine(DETA), triethylenetetraamine(TETA), tetraethylenepentaamine(TEPA) and pentaethylenehexamine(PEHA). The reaction mechanism was investigated by means of the mass spectra of the reaction intermediates. Adjusting the feed ratio of AB to C_n, hyperbranched polymers with different terminal groups and properties were obtained. FTIR, NMR, DSC, and TGA were used to characterize the polymers. It was found that the polymers′ properties such as solubility, thermal behaviour and encapsulation capability varied with changing the feed ratio of AB to C_n. Benzoyl and palmitoyl groups were introduced into these macromolecules by acidylation to form amphiphilic hyperbranched polymers which have a high capability to encapsulate water soluble dyes such as Congo red. It is expected that the hyperbranched PAMAMs can play an important role in the industrial applications, such as coatings, cross-linking and phase-transferring agents because of their versatility and availability. | LIUCui-hua GAOChao YANDe-yue | 2005 | Chemical Research in Chinese Universities2005，21，3： | 2 |
| 14 | Terahertz narrow bandstop, broad bandpass filter using double-layer S-shaped metamaterials显示文摘In this study,double-layer S-shaped metamaterials(MMs)are analyzed by terahertz time-domain spectroscopy.These materials exhibit narrow bandstop and broad bandpass transmission properties at both horizontal and vertical electric-feld polarizations.A 117%increase in the unloaded quality factor is experimentally observed for these materials.The center frequency is approximately 0.45 THz,with a 3-dB bandwidth of 0.52 THz from 0.20 to 0.72 THz at normal incidence.The measured average insertion loss is 0.5 dB with a ripple of 1 dB.These results show that double-layer S-shaped MMs are efective in designing tunable terahertz devices. | LIANG LanJu JIN BiaoBing WU JingBo ZHOU GaoChao ZHANG YongGang TU XueCou JIA Tao JIA XiaoQing CAO ChunHai KANG Lin XU WeiWei CHEN Jian | 2013 | Science China(Information Sciences)2013，56，12： | 2 |
| 15 | Technology of welding pipelines with a two-sided enamel coating显示文摘 | Steklov 0 I Li GaoChao Leshakov A M | 1998 | Welding International1998，，8： | 1 |
| 16 | Upper Paleozoic Shale Gas Accumulation Conditions of the Tiemulike Formation in Yining Basin显示文摘1 Introduction Yining basin,an independent unit of the YiliZhongtianshan micro plate(Wang et al.,2007;Han et al.,2011),is an intermontane superimposed basin(Dai et al.,2015).Yining basin has well-developed Tiemulike dark shale with normal lake facies formed in late period of middle Permian,which has good foreground material conditions of shale gas reservoirs from the study | FENG Yangwei LU Jincai JIANG Ting NIU Yazhuo CHEN Gaochao XU Wei | 2015 | Acta Geologica Sinica(English Edition)2015，89，A01： | 1 |
| 17 | PreparationofCu2ZnSnS4filmbysulfurizingsolutiondepositedprecurGsors显示文摘 | GaoChao ShenHonglie JiangFeng etal | 2012 | AppliedSurfaceScience2012，261，1： | 1 |
| 18 | Opticalpropertiesofanovelneodymiumpentafluoropropionatebinuclearcomplex显示文摘 | GaoChao CuiKai SheJiangbo etal | 2009 | InorganicaChimicaActa2009，362，6： | 1 |
| 19 | Varietal differences in the ease of astringency removal by carbon dioxide gas and ethanol vapor treatments among Oriental astringent persimmons of Japanese and Chinese origin显示文摘 | Masahiko Yamada Satoshi Taira Masako Ohtsuki Akihiko Sato Hiroshi Iwanami Hiroshi Yakushiji Renzi Wang Yong Yang Gaochao Li | 2002 | Scientia Horticulturae2002，，1： | 1 |
| 20 | In vitro and in vivo antioxidant activity of aqueous extract from Choerospondias axillaris fruit 显示文摘 | Wang Hua Gao Xiangdong Zhou Gaochao | 2008 | Food Chemistry2008，106，： | 1 |
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