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    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汽车动力系离合器接合抖振和粘一滑的分析和仿真显示文摘研究分析了离合器接合的抖振和粘一滑以及用数字来检验这些现象的影响系数。为具有汽车变速箱装置的动力系带打滑离合的4自由度(4DOF)的扭振系统开发了一个模型。进行稳态分析表明该离合器的抖振与摩擦系数和斜率有关,并用数字仿真加以证实。开发了模拟粘一滑的一种算法,并用于数字仿真,它表明了由于离合器压力波动,离开接合的抖振和外载荷变动将增加了粘一滑的可能性。由2档换到3档的数字仿真证明,根据离合器接合时作用压力波动,离开接合抖振和外载荷波动发生粘一滑可能增大,而随作用压力倾斜到啮合点发生粘一滑可能性明显减少。A. Crowther N Zhang D K Liu J K Jeyakumaran 2008传动技术2008,22,4:3
3Stereotactic body radiation therapy for management of spinal metastases in patients without spinal cord compression: a phase 1–2 trial显示文摘Xin Shelley Wang Laurence D Rhines Almon S Shiu James N Yang Ugur Selek Ibrahima Gning Ping Liu Pamela K Allen Syed S Azeem Paul D Brown Hadley J Sharp David C Weksberg Charles S Cleeland Eric L Chang 2012Lancet Oncology2012,,4:2
4全颗粒饲料对奶牛生产性能的影响显示文摘饲料中的中性洗涤纤维(NDF)含量和饲料颗粒直径是影响瘤胃功能的重要因素。试验评估了以颗粒饲料为主的奶牛瘤胃健康情况、NDF消化率和生产性能。选取8头荷斯坦母牛(336±30 d,体重346±35 kg),随机分配到交叉重复试验组中,奶牛安置于牛栏,自由采食。试验期为3周,前两周是适应期,最后一周为数据收集期。各组饲粮原料相同,但物理形式不同,分为全混合日粮(TMR)和颗粒料(直径=8 mm)。两组间物理有效NDF(pe NDF)不同,TMR组为39.8%,颗粒料组为11.8%。在试验过程中,干物质采食量(DMI)、饮水量、瘤胃反刍时间、瘤胃温度和pH情况均记录。3周后收集粪样,确定潜在的可消化NDF总消化率(pdNDF)。每阶段结束后计算平均日增重和饲料转化率。颗粒料组的DMI、DMI/体重和饮水量更高。而两组间平均日增重和饲料转化率无显著差异。颗粒料组的瘤胃反刍时间为241 min·d-1低于TMR组的507 min·d-1。饲料的不同物理外形对瘤胃温度、瘤胃pH无显著影响。TMR组的pdNDF总消化率为90.25%高于颗粒料组的86.82%。试验结果表明,动物易接受完整的颗粒饲料,DMI较高,且反刍时间减少,但瘤胃pH无显著变化。TMR组的pdNDF消化率显著增加。尽管两组奶牛在DMI和纤维消化方面表现不同,但总体表现相似,两组饲料的保存时间与其物理形式有关。在短期内,提供能满足NDF需求的完全颗粒饲料可改善瘤胃健康状况和动物生产性能,而较长时间的数据则需要进一步试验。Wang J Yang M Cao M Lin Y Che L Q Duraipandiyan V Al-Dhabi N A Fang Z F Xu S Y Feng B Liu G Wu D Bonfante E Palmonari A Mammi L Canestrari G Fustini M Formigoni A 2016饲料博览2016,0,12:2
5Blockade of EphA receptor tyrosine kinase activation inhibits vascular endothelial cell growth factor - induced angiogenesis显示文摘Cheng N Brantley D M Liu H 2002Mol Cancer Res2002,1,1:1
6Preparation and photocatalytic activity of dysprosium doped tungsten trioxide nanoparticles 显示文摘Liu H J Peng T Y Ke D N 2007Materials Chemistry and Physics2007,104,23:1
7Study on the corrosion re- sistance of phytic acid conversion coating for magnesiu mal- loys 显示文摘Liu J R Guo Y N Huang W D 2006Surface and Coatings Technology2006,201,34:1
8Analysis of the 9- fluorenylmethoxycarbonyl hydrazide labelling of neutral and sialic acid-containing oligosaccharides by reversed-phase high- performance liquid chromatography显示文摘Zhang Z D Zhang R N Liu G Q 1996J Chromatogr A1996,728,12:1
9Formal description and verification of hybrid rule/frame-based expert systems 显示文摘Shiu S C K Liu J N K Yeung D S 1997Expert Systems with Applications1997,13,3:1
10A comparative study on catalyst deactivation of nickel and cobalt incorporated MCM-41 catalysts modified by platinum in methane reforming with carbon dioxide 显示文摘LIU D P CHEO W N E LIM Y W Y BORGN A LAU R YANG Y H 2010Catalysis Today2010,154,34:1
11Effect of solution treatment on the strength and fracture toughness of aluminum alloy 7050 显示文摘HAN N M ZHANG X M LIU S D HE D G ZHANG R 2011Journal of Alloys and Compounds2011,509,10:1
12Effects of diets supplemented with organic acids and nucleotides on growth, immune responses and digestive tract develop- ment in weaned pigs 显示文摘LEE D N LIU S R CHEN Y T 2007Journal of Animal Physiolo- gy and Animal Nutrition2007,91,1112:1
13Effect of Y con- centration on the microstructure and mechanical prop- erties of as-cast Mg-Zn-Y-Zr alloys 显示文摘XU D K TANG W N LIU L 2007Journal of Al- loys and Compounds2007,432,12:1
14Signalling by fibroblast growth factor receptor 3 and parathyroid hormone-related peptide coordinate cartilage and bone development 显示文摘AMIZUKA N DAVIDSON D LIU H 2004Bone2004,34,1:1
15Preparation and photocatalytic activity of WO3/TiO2 nanocomposite particles 显示文摘Ke D N Liu H J Peng T Y 2008Materials Letters2008,62,3:1
16Development and characterization of a Triticum aestivum-Haynaldia villosa translocation line T4VS·4DL conferring resistance to wheat spindle streak mosaic virus显示文摘ZHANG Q P LI Q WANG X WANG H Y LANG S P WANG Y N WANG S L CHEN P D LIU D J 2005Euphytica2005,145,:1
17Residual Strength Degradation Model and Theory of Periodic Proof Tests for Graphite/Epoxy Laminates显示文摘Yang J N Liu M D 1977Journal of Composite Material1977,11,2:1
18A solvothermal route to crystalline lithium niobate 显示文摘Liu M N Xue D F 2005Materials Letters2005,59,23:1
19Size and chemical characterization of individual particles resulting from biomass burning of local southern california species显示文摘PHILIP J S LIU D Y CHRISTOPHERA N A 1999Environ Sci Technol1999,33,18:1
20Lipase-eatalyzed biodiesel production from soybean oil deodorizer distillate with absorbent present in tert-butanol system显示文摘WANG L DU W LIU D LI L DAI N 2006J Mol Catal B2006,43,14:1
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