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| 1 | Cloning and characterization of squalene synthase and cycloartenol synthase from Siraitia grosvenorii显示文摘Mogrosides and steroid saponins are tetracyclic triterpenoids found in Siraitia grosvenorii.Squalene synthase(SQS) and cycloartenol synthase(CAS) are key enzymes in triterpenoid and steroid biosynthesis.In this study,full-length cDNAs of SgSQS and SgCAS were cloned by a rapid amplification of cDNA-ends with polymerase chain reaction(RACE-PCR) approach.The SgSQS cDNA has a 1254 bp open reading frame(ORF) encoding 417 amino acids,and the SgCAS cDNA contains a 2298 bp ORF encoding 765 amino acids.Bioinformatic analysis showed that the deduced SgSQS protein has two transmembrane regions in the C-terminal.Both SgSQS and SgCAS have significantly higher levels in fruits than in other tissues,suggesting that steroids and mogrosides are competitors for the same precursors in fruits.Combined in silico prediction and subcellular localization,experiments in tobacco indicated that SgSQS was probably in the cytoplasm or on the cytoskeleton,and SgCAS was likely located in the nucleus or cytosol.These results will provide a foundation for further study of SgSQS and SgCAS gene functions in S.grosvenorii,and may facilitate improvements in mogroside content in fruit by regulating gene expression. | Huan Zhao Qi Tang Changming Mo Longhua Bai Dongping Tu Xiaojun Ma | 2017 | Acta Pharmaceutica Sinica B2017，7，2： | 10 |
| 2 | Design and demonstration of a dynamic wireless power transfer system for electric vehicles显示文摘The usage of electric vehicles is being globally promoted with the development of clean energy. However, the development of electric vehicles is limited by the battery capacity and the charging techtechnology.Traditional charging facilities mainly involve plugging invehicles in an electrical interface,which is inconvenient and inherently hazardous.When compared with the traditional charging methods,the wireless charging method can solve several problems,such as the interface limitation,and will be gradually developed as the main charging mode for elec trie vehicles[1].Based on the driving stales of electric vehicles,the wireless charging technologies can be mainly classified as static wireless charging and dynamic wireless charging. | Ze ZHOU Liyan ZHANG Zhitao LIU Longhua MA Miao HUANG Hongye SU | 2019 | Science China(Information Sciences)2019，62，12： | 2 |
| 3 | Temperature variations at the Great Wall and Zhongshan stations显示文摘Surface meteorological observations have been carried out at the Great Wall station (GW) and Zhongshan station (ZS) from 1984 to 2008 and from 1989 to 2008 respectively.The variation in mean air temperature and its trends are derived from the meteorological observation data recorded at both stations.The warming rate of the annual mean temperature at GW is similar to that at Bellingshausen station,which is about 3 km distant.Thus,the warming trend is representative of the King George Island region.The warming rate of ZS is less different from that at Davis station,which is about 100 km from ZS.It can be said that the meteorological data recorded at both stations are representative of the regions of the King George Island and east coast of the Antarctic. | BIAN LinGen MA YongFeng LU ChangGui LU LongHua | 2011 | Chinese Journal of Polar Science2011，22，1： | 1 |
| 4 | Study on a biomimetic enzyme-linked immunosorbent assay method for rapid determination of trace acrylamide in French fries and cracker samples显示文摘 | SUN Qing XU Longhua MA Yue | 2014 | Journal of the Science of Food and Agriculture2014，94，1： | 1 |
| 5 | SINS/GPS integrated navigation system using an improved particle filter based on state reconstruction显示文摘 | Ma Longhua Guan Bo | | 0，，03： | 1 |
| 6 | On the convergence analysis and parameter selection in particle swarm optimization, Machine Learning and Cybernetics显示文摘 | Zheng YongLing Ma LongHua Zhang LiYan Qian JiXin | 2003 | International Conference2003，3，： | 1 |
| 7 | A coning compensation algorithm for SINS in high dynamic motion显示文摘 | LI Zongtao WU Tiejun MA Longhua | 2011 | Journal of control engineering and applied informatics2011，13，3： | 1 |
| 8 | A Simple Cement Hydration Model Considering the Influences ofWater-to-Cement Ratio and Mineral Composition显示文摘A simple hydration model is used here by taking the composition of the cement and the initial water: cementratio (w/c) into account explicitly. Its conceptual basis is a combination of the Avrami equation and Bentz’s modelbased on simple spatial considerations. In this model, the Avrami equation determines the initial reaction, andBentz’s model describes the following hydration stage. The model favors engineers for it relies on one experimentalparameter and has a reliable approximation in the practice. | Baoyu Ma Guansuo Dui Zhenglin Jia Bo Yang Chunyan Yang Quangui Gao Longhua Qin Ju Ma | 2021 | Computer Modeling in Engineering & Sciences2021，，6： | 1 |
| 9 | Treatment with Parenteral Nutrition Support and Chinese Herbs in One Case of Primary Small Intestinal Lymphangiectasia显示文摘INTESTINAL lymphangiectasia (IL) is a rare disease first reported by Waldmanin in 1961.1 Since then, no more than two hundred cases have been reported. | Yan-cheng Dai,Zhi-peng Tang,Gui-tong Ma,Ping Yin,Yu-ping Gong,Wen Liu,Song Wang,Ya-li Zhang,and Xin-ying He Department of Gastroenterology,Longhua Hospital Institute of Digestive Disease,Shanghai University of Traditional Chinese Medicine,Shanghai 200032,China | 2009 | Chinese Medical Sciences Journal2009，24，4： | 0 |
| 10 | Enhanced conductivity and stability of Co_(0.98)Cu_(x)Mn_(2.02−x)O_(4)ceramics with dual phases and twin structures显示文摘Semiconductor materials with heterogeneous interfaces and twin structures generally demonstrate a higher concentration of carriers and better electrical stability.A variety of Cu-doped Co_(0.98)Cu_(x)Mn_(2.02−x)O_(4)(0≤x≤0.5)negative temperature coefficient(NTC)ceramics with dual phases and twin structures were successfully prepared in this study.Rietveld refinement indicates that the content of a cubic spinel phase increases with increasing Cu content.The addition of Cu can promote grain growth and densification.Atomic-level structural characterization reveals the evolution of twin morphology from large lamellae with internal fine lamellae(LIT lamellae)to large lamellae without internal fine lamellae(L lamellae)and the distribution of twin boundary defects.First-principles calculations reveal that the dual phases and twin structures have lower oxygen-vacancy formation energy than those in the case of the pure tetragonal and cubic spinel,thereby enhancing the transmission of carriers.Additionally,the three-dimensional charge-density difference shows that metal ions at the interface lose electrons and dwell in high valence states,thereby enhancing electrical stability of the NTC ceramics.Furthermore,the additional Cu ions engage in electron-exchange interactions with Mn and Co ions,thereby reducing resistivity.In comparison to previous Cu-containing systems,the Co_(0.98)Cu_(x)Mn_(2.02−x)O_(4)series exhibit superior stability(aging value≤2.84%),tunable room-temperature resistivity(ρ),and material constant(B)value(17.5Ω·cm≤ρ≤7325Ω·cm,2836 K≤B≤4315 K).These discoveries lay a foundation for designing and developing new NTC ceramics with ultra-high performance. | Chengjian Ma Longhua He Lei Bi Hong Gao Jianxiang Ding | 2023 | Journal of Advanced Ceramics2023，12，9： | 0 |
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