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1296篇 您的检索式:作者名="HAN D M"
    题名 作者 年代 出处 被引量
1Evaluation of three-dimensional biofilms on antibacterial bonding agents containing novel quaternary ammonium methacrylates显示文摘Antibacterial adhesives are promising to inhibit biofilms and secondary caries.The objectives of this study were to synthesize and incorporate quaternary ammonium methacrylates into adhesives,and investigate the alkyl chain length effects on three-dimensional biofilms adherent on adhesives for the first time.Six quaternary ammonium methacrylates with chain lengths of 3,6,9,12,16 and 18were synthesized and incorporated into Scotchbond Multi-Purpose.Streptococcus mutans bacteria were cultured on resin to form biofilms.Confocal laser scanning microscopy was used to measure biofilm thickness,live/dead volumes and live-bacteria percentage vs.distance from resin surface.Biofilm thickness was the greatest for Scotchbond control;it decreased with increasing chain length,reaching a minimum at chain length 16.Live-biofilm volume had a similar trend.Dead-biofilm volume increased with increasing chain length.The adhesive with chain length 9 had 37%live bacteria near resin surface,but close to 100%live bacteria in the biofilm top section.For chain length 16,there were nearly 0%live bacteria throughout the three-dimensional biofilm.In conclusion,strong antibacterial activity was achieved by adding quaternary ammonium into adhesive,with biofilm thickness and live-biofilm volume decreasing as chain length was increased from 3 to 16.Antibacterial adhesives typically only inhibited bacteria close to its surface;however,adhesive with chain length 16 had mostly dead bacteria in the entire three-dimensional biofilm.Antibacterial adhesive with chain length 16 is promising to inhibit biofilms at the margins and combat secondary caries.Han Zhou Michael D Weir Joseph M Antonucci Gary E Schumacher Xue-Dong Zhou Hockin H K Xu 2014International Journal of Oral Science2014,6,2:5
2油炸食品与心血管病风险和全因死亡率的关系:观察性研究的荟萃分析显示文摘研究者进行了一项荟萃分析,包括剂量反应分析,以定量确定油炸食品摄入与普通成年人群心血管病风险和全因死亡率之间的关系。方法:研究者在PubMed、EMBASE和Web of Science上检索2020年4月11日之前的所有文章。应用随机效应模型估计总的相对危险度(relative risks,RR)和95%CI。结果:与最低油炸食品摄入量相比,最高摄入量者主要心血管事件的总RR(95%CI)=1.28(1.15~1.43),n=17,I^(2)=82.0%,其中前瞻性研究:1.24(1.12~1.38),n=13,I^(2)=75.7%.刘青(译) 练桂丽(审校) Qin P Zhang M Han M Liu D Luo X Xu L Zeng Y Chen Q Wang T Chen X Zhou Q Li Q Qie R Wu X Li Y Zhang Y Wu Y Hu D Hu F 2021中华高血压杂志2021,29,2:3
3残余应力导致三层聚烯烃管道防腐层剥离与开裂显示文摘这是美国运输部发起的研究项目,一个管道防腐层专家团队参与了本研究项目,评价了三层聚烯烃管道外防腐涂层(3LPO)的完整性。研究表明,三层聚烯烃管道外防腐涂层(3LPO)存在剥离和面层开裂两大完整性问题。过去几年里,据文献报道,三层聚烯烃管道外防腐涂层(3LPO)的熔结环氧粉末(FBE)底漆与钢管界面上发生多起防腐层剥离事故,以及聚丙烯(PP)面层发生开裂事故。这些防腐层事故引起人们对使用三层聚烯烃管道外防腐涂层(3LPO)的关注。一般来讲,三层聚烯烃管道外防腐涂层(3LPO)采用比较厚的聚烯烃面层增强防腐层抗机械损伤和防止水渗透的能力。但是,聚烯烃的热膨胀系数比钢材高得多,结果在防腐层系统里产生比较高的残余热应力。因为残余应力高,造成防腐层剥离,尤其在管端截短防腐层和任何防腐层的边上,因为这些是高应力集中部位。特别是假如钢管表面预处理不当,就无法保证防腐层持久达到很强的粘合强度。如果熔结环氧粉末(FBE)底漆配方选择不当,发生热氧化降解,也导致防腐层过早失效。如果使用温度很高,聚丙烯也会因为热氧化降解而变脆。在残余应力下,这样脆性的聚丙烯面层就会开裂。本文分析了三层聚烯烃管道外防腐涂层(3LPO)中的残余应力,并且探讨了残余应力对三层聚烯烃管道外防腐涂层(3LPO)剥离和聚丙烯(PP)面层开裂机理的影响。B.T.A.Cheng S Hung-jue J Han D Wong A Kehr M Mallozzi F Aguirre H Pham W Snider 王向农(译) 2011防腐保温技术2011,19,3:3
4短期常压低氧步行训练对肥胖成年人运动能力和步态的影响显示文摘为了比较以个人喜好的步行速度(preferred walking speed,PWS)短期低氧与常氧训练对肥胖患者的能量、力学、效率和代谢风险标志物的影响,Fernández Menéndez等纳入肥胖患者23例,在缺氧[海拔3km,n=12;体质量指数(body mass index,BMI)(34.0±0.8)kg/m2]或常氧[海拔360m,n=11;BMI(32.9±0.8)kg/m2]情况下.刘青 叶鹏 Fernández Menéndez A Saudan G Sperisen L Hans D Saubade M Millet GP Malatesta D 2018中华高血压杂志2018,26,6:2
5Glycosaminoglycans enhance human leukemic cell growth in vitro显示文摘Maurer A M Han Z C Dhermy D 1994Leuk Res1994,18,11:2
6Gassmann's equation and fluid-saturation effects on seismic velocities显示文摘Han D Batzle M 2004Geophysics2004,69,2:1
7Head and backbone of the Early Cambrian vertebrate Haikouichthys显示文摘SHU D CONWAY M S HAN J 2003Nature2003,421,:1
8Siehl,Eckhard Thiel,Wilms Tumor Gene(WT1) Expression as a Panleukemic Marker显示文摘Hans D Menssen Jan M 2002The Japanese Society of Hematology2002,76,:1
9Phytotoxic and antimicrobial activity of volatile constituents of Artemisia princops var orientalis显示文摘Yun K W Kil B S Han D M 1993J Chem Ecol1993,19,1:1
10Correlations of the first normal stress difference with shear stress and of the storage modulus with loss modulus for homopolymers 显示文摘Han C D Jhon M S 1986Jour- nal of Applied Polymer Science1986,32,3:1
11A general low-tem- perature route for large-scale fabrication of highly oriented ZnO nanorod/nanotube arrays显示文摘Yu H D Zhang Z P Han M Y 2005J Am Chem Soc2005,127,8:1
12Limited demethylation leaves mosaic-type methylation states in cloned bovine pre-implantation embryos显示文摘Kang Y K Park J S Koo D B Choi Y H Kim S U Lee K K Han Y M 2002The EMBO journal2002,21,5:1
13Network model- ing links breast cancer susceptibility and centrosome dysfunc- tion显示文摘Pujana M A Han J D J Starita L M 2007Nat Genet2007,39,11:1
14Effect 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
15Extent of Surgical Resection Predicts Seizure Freedom in Low-Grade Temporal Lobe Brain Tumors显示文摘Englot D J Han S J Berger M S 2011Neurosurgery2011,70,92:1
16Heterotrimeric 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
17Loss of Halophytism by Interference with SOS1 Expression1[W][OA]显示文摘Oh Dong-Ha Leidi Eduardo Zhang Quan Hwang Sung-Min Li Youzhi Quintero Francisco J Jiang Xingyu D’Urzo Matilde Paino Lee Sang Yeol Zhao Yanxiu Bahk Jeong Dong Bressan Ray A Yun Dae-Jin Pardo José M Bohnert Hans J 2009Plant Physiology2009,,1:1
18Application of SELDI-TOF mass spectrometry for the identification of differentially expressed proteins by formaldehyde exposure 显示文摘JUNG Y M CHUNG H Y HAN B D 2006Toxicol Lett2006,164,1:1
19AP-I and NF-kappaB regulation in rheumatoid arthritis and murine collagen-induced arthritis 显示文摘Han Z Boyle D L Manning A M 1998Autoimmunity1998,28,4:1
20Trace but not delay fear conditioning requires attention and the anterior cingulate cortex显示文摘Han C J O'Tuathaigh C M Anderson D J 2003Proc Natl Acad Sci USA2003,100,13:1
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