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2354篇 您的检索式:作者名="MA W H"
    题名 作者 年代 出处 被引量
12019新型冠状病毒基因组特征和流行病学:病毒起源和受体结合的意义显示文摘研究者对来自9例新型冠状病毒肺炎住院患者的支气管肺泡灌洗液样本和培养的分离株进行了下一代测序。从这些个体中获得了严重急性呼吸综合征-冠状病毒2(severe acute respiratory syndrome-coronavirus 2,SARS-CoV-2)的完整和部分基因组序列。利用Sanger测序连接病毒重叠群以获得全长基因组,cDNA末端快速扩增确定终端区。对这些SARSCoV-2基因组和其他冠状病毒基因组进行了系统进化分析,以确定该病毒的进化史并有助于推断其可能的起源。刘青(译) 刘莉(审校) Lu R Zhao X Li J Niu P Yang B Wu H Wang W Song H Huang B Zhu N Bi Y Ma X Zhan F Wang L Hu T Zhou H Hu Z Zhou W Zhao L Chen J Meng Y Wang J Lin Y Yuan J Xie Z Ma J Liu WJ Wang D Xu W Holmes EC Gao GF Wu G Chen W Shi W Tan W 2020中华高血压杂志2020,28,3:516
2胡萝卜软腐果胶杆菌巴西亚种(Pectobacterium carotovorum subsp.brasiliense)引起的黄瓜细菌性软腐病在中国发生显示文摘2014—2015年,在中国山东、山西、河北、河南、辽宁等省的黄瓜茎叶上发生了毁灭性的细菌性软腐病,造成了黄瓜产业严重的经济损失。黄瓜叶片、茎、叶柄和果实表面出现流胶;茎基部呈深褐色进而出现湿腐。受侵染的黄瓜叶边缘出现黄斑和湿腐症状,并逐渐扩散至叶片中心。从受侵染组织中分离出45个细菌菌株,在形态学特性鉴定、生理学、生物化学和16Sr RNA基因序列分析的基础上,将病原体鉴定为胡萝卜软腐果胶杆菌(Pectobacterium carotovorum)。多位点序列分析(MLSA)证实,分离菌株是胡萝卜软腐果胶杆菌巴西亚种[Pectobacterium carotovorum subsp.brasiliensis(Pcb)],病原菌归入进化枝II。重新分离获得与原始菌株相同的菌株,证实了分离菌株的致病力。寄主范围测试表明,该菌株具有广泛的寄主范围。目前为止,这是对Pcb引起的黄瓜软腐病——这一对黄瓜生产具有重要经济影响的病害在中国乃至全球范围内的首次报道。冯志琴(译) meng x l chai a l shi y x xie x w ma z h li b j 2017中国植保导刊2017,37,7:10
3Sol-gel derived HA/TiO_2 double coatings on Ti scaffolds for orthopaedic applications显示文摘Hydroxyapatite/titania (HA/TiO2) double layers were coated onto Ti scaffolds throughout for orthopaedic applications by sol-gel method. Differential scanning calorimetry (DSC), thermogravimetric analysis (TG) and X-ray diffractometry (XRD) were used for the characterisation of the phase transformations of the dried gels and coated surface structures. Scanning electron microscope (SEM) equipped with energy dispersive spectrometry (EDS) was used for the observation and evaluation of the morphology and phases of the surface layers and for the assessment of the in vitro tests. The in vitro assessments were performed by soaking the HA/TiO2 double coated samples into the simulated body fluid (SBF) for various periods. The TiO2 dipping-coating method at a speed of 12 cm/min, followed by a heat treatment at 600 ℃ for 20 min. The HA la lyaeyre wr wasa ssu cbosaetqeude bnytl ya dipping-coated on the outer surface at the same speed and then heat-treated at difference temperatures. The results indicat that the HA phase begins to crystallize after a heat treatment at 560 ℃. The crystallinity increases obviously at 760 ℃. SEM observations find no delamination or crack at the interfaces of HA/TiO2 and TiO2/Ti. The HA/TiO2 coated Ti scaffolds displays excellent bone-like apatite forming ability when it is soaked into SBF. Ti scaffolds after HA/TiO2 double coatings can be anticipated as promising implant materials for orthopaedicXU W HU W Y LI M H MA Q Q P. D. HODGSON WEN C E 2006中国有色金属学会会刊:英文版2006,16,B01:5
4Variations in Wool Growth with Nutrient Supply in Northern China显示文摘Field studies on essessment of nutritional status of the grazing sheep were carried out in each of the three major grassland regions, the eastern Inner Mongolia and beyond grassland, the Inner Mongolia - Ningxia - Gansu grassland and the Xinjiang grassland, in northern China. The results obtained showed that the wool production of fine wool sheep in these regions varied between regions and seasons, with similar seasonal patterns in all regions and that reducing the seasonal variations in nutrient supply would enhance wool production substantially. Nutritional limitations to wool growth of the grazing sheep in these regions were suggested, those were: the shortage of protein supply in winter and early spring; the poor quality of much of the pasture and the hay used as supplements, the low energy intake during winter which probably necessitated the use of body stores to maintain body temperature.D X Lu,Iner(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)Z C Feng,(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)H R Wang,(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)R Z Yang,(Xinjiang Institute of Animal Science.Xinjiang Academy of Animal Science.Yiu Hou Road.Urumqi.Xinjiang Uygur Autonomous Region PRC)C T Ma,(Chinese Academy of Agricultural Sciences.Lanzhou.Gansu.PRC)D B Purser,(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014)J R Lindsay(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014)D W Peter(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014) 1997畜牧与饲料科学1997,22,S1:3
5Theoretical analysis of startup of a pulsating heat pipe显示文摘 Ma H B 2007International Journal of Heat and Mass Transfer2007,,6:1
6Alkaline syenites in eastern Cathaysia (South China): Link to Permian-Triassic transtension显示文摘Wang Q Li J W Jian P Zhao Z H Xiong X L Bao Z W Xu J F Li C F Ma J L 2005Emth Planet Sci Lett2005,230,34:1
7A Novel Multi-objective Programming Approach Dealing with Qualitative and Quantitative Objectives for Environmental Management显示文摘Hung M L Yang W F Ma H W 2006Ecological Economics2006,,56:1
8Effect of strain rate on compressivebehavior of Ti-based bulk metallic glass at room temperature显示文摘Ma W F Kou H C Li J S 2009Journal of Alloys and Compounds2009,472,12:1
9Optimization of cyclical process for CO coupling regeneration reactions 显示文摘B W Wang X B Ma G H Xu 2000Com & Chem Eng2000,24,6:1
10Cyclin-depengdent kinase-5 is involvedin neuregulin-dependent activation of phosphatidylinositol 3-kinaseand Akt activity mediating neuronal survival显示文摘Li BS Ma W Jaffe H 2003J Biol Chem2003,278,35:1
11A fem that hyperaccumulates arsenic显示文摘Ma L Q Komar K M Tu C Zhang W H Cai Y Kennelley E D 2001Nature2001,409,:1
12An integrated one-cycle control buck converter with adaptive output and dual loops for output error correction显示文摘Ma D S Ki W H Tsui C Y 2004IEEE Journal of Solid-State Circuits2004,39,1:1
13Effect of V205 on the properties of mullite ceramics synthesized from high-aluminum fly ash and bauxite 显示文摘LI J H MA H W HUANG W H 2009Journal of Hazardous Materials2009,166,:1
14Dynamic Response Analysis of Rock Mass with Stochastic Properties Subjected to Explosive Loads显示文摘Wu C Q Hao H Ma G W 0,,02:1
15Groundwater recharge history and hydrogeochemical evolution in the Minqin Basin,northwest China显示文摘Edmunds W M Ma J Z Aeschbach H W 0,,12:1
16Amino acid promoted CuI-catalyzed C-N bond formation between aryl halides and amines or N-containing heterocycles显示文摘ZHANG H CAI Q MA D W 2005Journal of Organic Chemistry2005,70,13:1
17Synthesis, thermal, me- chanical and rheological properties of multiwall carbon nanotube/waterborne polyurethane nanocomposite 显示文摘Kuan H C Ma C C Chang W P 2005Composites Science and Technology2005,65,1112:1
18Heterotrimeric G proteins regulate nitrogen-use efficiency in rice 显示文摘Sun H Y Qian Q Wu K Luo J J Wang S S Zhang C W Ma Y F Liu Q Huang X Z Yuan Q B Han R X Zhao M Dong G J Guo L B Zhu X D Gou Z H Wang W Wu Y J Lin H X Fu X D 2014Nature Genetics2014,46,4:1
19Corrosion behavior of cold sprayed titanium protective coating on 1Crl3 substrate in seawater显示文摘Wang H Li W Ma L 2007Surface & Coatings Technolow2007,201,:1
20Dechlorane Plus in multimedia in northeastern Chinese urban region 显示文摘Ma W L Liu L Y Qi H 2011Environment International2011,37,1:1
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