维普中文期刊产品整合服务
307篇 您的检索式:作者名="Fook"
    题名 作者 年代 出处 被引量
1用于电磁波吸收的碳纳米管水泥基复合材料显示文摘采用弓形法对多壁碳纳米管(MWCNTs)水泥基复合材料的吸波性能进行了实验研究。结果表明,当MWCNTs掺量为0.6%(质量分数)时,厚度为25mm的试样在2.9GHz处获得最强吸收峰值-28dB,并能够在2~8GHz范围内对出现在吸收峰值附近的电磁波进行充分吸收;厚度为35mm的试样在8~18GHz表现出良好的宽频吸波性能。当MWCNTs掺量为0.9%(质量分数)时,水泥基复合材料在8~18GHz低于-10dB的带宽达到7.1GHz。力学强度测试结果表明MWCNTs在一定掺量范围内改善了水泥基材料的力学强度,但掺量的继续增大会导致力学强度的下降。MWCNTs掺量为0.9%(质量分数)的水泥砂浆抗压强度为60.2MPa,抗折强度为10.2MPa,虽然较空白试样有所下降,但仍有较高的力学强度。王宝民 郭志强 韩瑜 LAI Fook Chuan 张婷婷 2013功能材料2013,44,9:9
2大气二氧化氮与每日总死亡率、心血管和呼吸系统疾病死亡率的短期关联:398个城市的多中心分析显示文摘目的:采用统一的分析方案,评估全球多个国家/地区的二氧化氮(NO_(2))与总死亡率、心血管和呼吸系统疾病死亡率之间的短期关联。研究设计:采用两阶段的时间序列分析方法、过度离散的广义线性模型和多水平meta分析。研究地点:22个低到高收入国家/地区的398个城市。主要结局指标:1973—2018年逐日总死亡人数(6280万人)、心血管疾病死亡人数(1970万人)和呼吸系统疾病死亡人数(550万人)。结果:平均而言,NO_(2)浓度在滞后1天(前1天)每增加10μg/m^(3),会导致总死亡率、心血管和呼吸系统疾病死亡率分别增加0.46%(95%可信区间0.36%~0.57%)、0.37%(0.22%~0.51%)、0.47%(0.21%~0.72%)。在对共污染物(PM_(10)、PM_(2.5)、臭氧、二氧化硫和一氧化碳)进行调整后,这些关联仍然很稳定。所有3种死因的暴露-反应曲线几乎是线性的,没有明显的阈值。在398个城市中,可归因于高过假定零水平的NO_(2)浓度造成的死亡比例为1.23%(95%可信区间0.96%~1.51%)。结论:这项多中心研究提供了关于NO_(2)短期暴露与总死亡率、心血管和呼吸系统死亡风险之间的独立和线性关联的关键证据,说明通过加强NO_(2)的控制和监管限制标准,可获得人群水平的健康收益。孟夏 刘聪(校) 陈仁杰 郑湃(译) 阚海东(校) Francesco Sera Ana Vicedo-Cabrera Ai Milojevic Maria Guo Yuming Tong Shilu Micheline de Sousa Zanotti Stagliorio Coelh Paulo Hilario Nascimento Saldiva Eric Lavigne Patricia Matus Correa Nicolas Valdes Ortega Samuel Osorio Garcia Jan Kysely Ales Urban Hans Orru Marek Maasikmets Jouni J K Jaakkola Niilo Ryti Veronika Huber Alexandra Schneider Klea Katsouyanni Antonis Analitis Masahiro Hashizume Yasushi Honda Chris Fook Sheng Ng Baltazar Nunes João Paulo Teixeira Iulian Horia Holobaca Simona Fratianni Ho Kim Aurelio Tobias Carmeníniguez Bertil Forsberg ChristoferÅström Martina S Ragettli Yue-Liang Leon Guo Shih-Chun Pan Shanshan Li Michelle L Bell Antonella Zanobetti Joel Schwartz Tangchun Wu Antonio Gasparrini 2021英国医学杂志中文版2021,24,8:7
3纳米碳纤维在水性体系中的分散性能及机理讨论显示文摘以十二烷基硫酸钠(SDS)、聚丙烯酸(PAA)复合曲拉通(Tx100)、分散助剂DISPERBYK-180(D-180)和十二烷基苯磺酸钠(SDBS)等4种表面活性剂作为分散剂,采用多种表面活性剂超声分散法分散纳米碳纤维(CNFs).结合紫外/可见分光光度计法、透射电镜(TEM)及场发射扫描电镜(FESEM)观察、Zeta电位法、表面张力测试、静置及离心分离等测试方法,全面地表征了采用不同表面活性剂的CNFs悬浮液的分散状态,探讨了表面活性剂对CNFs在水性体系中分散性的影响.实验结果表明:4种表面活性剂中,SDS对CNFs的分散效果最好,其最佳掺量为1.6 g/L;SDBS的分散效果次之,D-180效果再次,而PAA复合Tx100的分散效果最差.王宝民 马海楠 张婷婷 Lai Fook Chuan 2013纳米技术与精密工程2013,11,3:4
4Study on the hypolipidemic properties of garlic polysaccharide in vitro and in normal mice as well as its dyslipidemia amelioration in type2 diabetes mice显示文摘In the present work,garlic polysaccharide(GP)in lowering lipid based on in vitro and in vivo approaches were investigated.The in vitro studies revealed significant effects of GP on cholesterol,sodium cholate,oil binding,and lipase inhibition.Meanwhile,the liver index in the medium and high dose GP group was significantly lower than the control group in normal mice which relatively corresponded to the modulated effect of intestinal flora.A high dose of GP has markedly reduced the ratio of intestinal Firmicutes to Bacteroidetes and increased the abundance of gut probiotics Akkermansia.Furthermore,the high dose of GP also significantly reduced the levels of triglyceride and low-density lipoprotein cholesterol of diabetic mice indicating that GP could not only prevent hyperlipidemia of metabolic syndrome but also further ameliorate dyslipidemia of diabetes mellitus.This study provides new prospects for garlic polysaccharide as a hypolipidemic nutraceutical for the treatment of metabolic syndrome and type 2 diabetes.Chanyuan Xie Wei Gao Xue Li Shuangshuang Luo Fook Yee Chye 2022Food Bioscience2022,47,3:3
5Photon momentum transfer in inhomogeneous dielectric mixtures and induced tractor beams显示文摘The determination of optical force as a consequence of momentum transfer is inevitably subject to the use of the proper momentum density and stress tensor.It is imperative and valuable to consider the intrinsic scheme of photon momentum transfer,particularly when a particle is embedded in a complex dielectric environment.Typically,we consider a particle submerged in an inhomogeneous background composed of different dielectric materials,excluding coherent illumination or hydrodynamic effects.A ray-tracing method is adopted to capture the direct process of momentum transfer from the complex background medium,and this approach is validated using the modified Einstein–Laub method,which uses only the interior fields of the particle in the calculation.In this way,debates regarding the calculation of the force with different stress tensors using exterior fields can be avoided.Our suggested interpretation supports only the Minkowski approach for the optical momentum transfer to the embedded scatterer while rejecting Peierls’s and Abraham’s approaches,though the momentum of a stably moving photon in a continuous background medium should be considered to be of the Abraham type.Our interpretation also provides a novel method of realizing a tractor beam for the exertion of negative force that offers an alternative to the use of negative-index materials,optical gain,or highly non-paraxial or multiple-light interference.Cheng-Wei Qiu Weiqiang Ding MRCMahdy Dongliang Gao Tianhang Zhang Fook Chiong Cheong Aristide Dogariu Zheng Wang Chwee Teck Lim 2015Light(Science & Applications)2015,4,1:3
6纳米碳纤维表面修饰及其在水溶液中的分散显示文摘为了研究纳米碳纤维(CNFs)在水溶液中的分散情况,对其进行高温纯化处理,以甲基纤维素(MC)为分散剂,制备分散良好的CNFs悬浮液.采用差热分析(DTA)和热重分析(TGA)研究了高温处理对CNFs的影响,通过测定悬浮液的紫外可见光吸光度、等温吸附曲线、zeta电位及表面张力等方法研究了MC对CNFs分散性能的影响,并讨论分析了MC对CNFs的分散机理.结果表明:MC的加入使CNFs悬浮液的zeta电位由-15.4 mV升至0,表面张力由38.87 mN/m降至36.54 mN/m;等温吸附曲线表明MC在CNFs的表面为'单阶段吸附',当MC的质量浓度达到0.4 g/L时,MC在CNFs表面饱和吸附;当CNFs达到最佳分散状态时,MC与CNFs的质量比为2∶1.王宝民 马海楠 张源 Chuan Fook Lai 2014材料科学与工艺2014,22,4:2
7Technology application in project-based learning显示文摘Balakrlshnan Mumandy Rossafri Mohamad Fong Soon Fook Rozhan Mohammed Idrus 2009通讯和计算机(中英文版)2009,6,12:2
8Clinical scale expansion of cytokine-induced killer cells is feasible from healthy donors and patients with acute and chronic myeloid leukemia at various stages of therapy显示文摘Madelaine Niam Yeh-Ching Linn Stephanie Fook Chong Tsyr-Jong Lim Sixian Chu Alicia Choong Hao-Xiang Yong Garnet Suck Marieta Chan Mickey Koh 2011Experimental Hematology2011,,9:2
9Probiotics as modulators of the gut flora显示文摘Fooks LJ Gibson GR 2002Br J Nutr2002,88,1:1
10Production of measles nucleoprotein in different expression systems and its use as a diagnostic reagent显示文摘Warnes A Fooks A R Stephenson J R 1994J Virol Meth1994,49,:1
11Prebiotics,probiotics and human gutmicrobilogy显示文摘Fooks LJ Fuller R Gibson GR 1999Int Dairy J1999,9,1:1
12Comparisan of large-scale mammalian cell culture systems with egg culture for the production of influenza virus A vaccine strains显示文摘Tree J A Richardson C Fooks A R 2001Vac- cine2001,19,:1
13Current status of rabies and prospects for elimination 显示文摘Fooks A R Banyard A C Horton D L 2014Lancet2014,384,9951:1
14Prehiotics, probiotics and human gut microhiology显示文摘Laura J Fooks 1999International Dairy Journal1999,9,:1
15Residual stress measurement in a repair welded header in the as-welded condition and aiter advanced post weld treatment 显示文摘Mirzaee-Sisan A Fookes A J Truman C E 2007International Journal of Pressure Vessels and Piping2007,84,5:1
16Flow visualization and flow cytometry with holographic video microscopy显示文摘Cheong Fook Chiong Sun Bo Dreyfus R 2009Opt Express2009,17,13:1
17Some engineering aspects of rock wearthering with field examples from dartmoor and elsewhere 显示文摘FOOKES P G DEARMAN W R FRANKLIN J A 1971The Quarterly Journal of Engineering Geology1971,4,3:1
18Eulerian Finite Element Analysis of Excess Pore Pressure Generated by Spudcan Installation into Soft Clay显示文摘Jiang Tao Yi Fook Hou Lee Siang Huat Gob 2012Computers andGeotechnics2012,42,:1
19Concrete in hot dry salty environments 显示文摘Fookes P 1995Concrete1995,29,:1
20Bacteriological qualityand safetyo frawmilkinmalaysia显示文摘Fook Y C Aminah A Mohd K A Food Microbiology2 0040,21,:1
返回顶部 每页显示:
共16页 首页 上一页 第1页 下一页 末页 /16 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费