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| 1 | DNA测序、PCR-SSCP和phaB间接药敏实验检测结核分枝杆菌利福平耐药性的比较显示文摘地点:印度Chennai结核病研究中心。目的:利用表型和基因型方法快速鉴定耐多药结核分枝杆菌。设计:对两种基因型分析方法,即 DNA测序法和聚合酶链反应-单链构象多态性(PCR-SSCP)法和一种表型分析方法,即噬菌体生物增殖法(phaB)进行了实验室内的标准化,并利用这三种方法测定101株RFPr和100株RFPs临床分离结核分枝杆菌 的利福平耐药性。结果和结论:将三种方法的检测结果与常规间接药敏实验进行比较。DNA测序法的灵敏度和特异度分别为97%和100%,PCR-SSCP法为76%和100%,而phaB实验为97%和84%。DNA测序法的灵敏度和特异度高于其它两种方法。 | C.Mani N.Selvakumar V.Kumar S.Narayanan P.R.Narayanan 李传友 | 2003 | 国际结核病与肺部疾病杂志2003，，4： | 2 |
| 2 | Electrochemical Impedance Spectroscopic Analysis of ZnS Nanorod Fabricated Using Butterfly Wings as Biotemplate显示文摘This article describes the growth of zinc sulfide(ZnS) nanorod on glass/aluminum foil by employing butterfly wings as biotemplate. Upon calcinating(at 400 °C), the butterfly wings soaked in ZnS nanoparticle suspension, with uniform cage-like nanostructures in nanodimensions, were found on glass/aluminum surface. The transverse and longitudinal dimensions of the nanorods were evaluated from scanning electron microscopy micrographs as 132 and 159 nm,respectively. Purity of the ZnS nanorod found on the specimen was checked by recording XRD(28.877°, 48.038°, and57.174°) and Fourier transform infrared spectrometer spectra(663.7 and 551.68 cm-1). Luminescence natures of the nanorods were examined using photoluminescence spectral studies. The characteristic emission peak is shown in the visible region with strong intensity, while the excitation peak is shown at 267 nm. Electrochemical impedance spectroscopic analysis of ZnS nanorod exhibits double-layer capacitance value(Cdl= 6.7 nF), and the Bode plot explains the stability of ZnS nanorod under the influence of electrical field. | K.Jeyasubramanian M.Nisanthi V.S.Benitha N.Selvakumar | 2015 | Acta Metallurgica Sinica(English Letters)2015，28，1： | 1 |
| 3 | Minimum ignition energy for micro and nano flash powders显示文摘 | A.Azhagurajan N.Selvakumar M.Mohammed Yasin | 2012 | Proc Safety prog2012，，1： | 1 |
| 4 | 自润滑烧结镁基复合材料的拉伸、压缩和磨损行为(英文)显示文摘采用粉末冶金方法制备石墨/二硫化钼增强镁基自润滑复合材料,并分别表征这些复合材料的显微组织、物理性能、力学性能和磨损性能。利用XRD手段鉴定复合材料中的Gr/MoS_2相。显微组织观察表明,Gr/MoS_2颗粒均匀地分散在镁基体中。在室温条件下施加载荷5 g并保持15 s,测试复合材料的显微硬度,得到所有复合材料的显微硬度为VHN 29-34。使用显微硬度、拉伸和压缩试验研究材料的力学性能,并用扫描电子显微镜分析材料的断口形貌,得到Mg-10MoS_2复合材料最高的硬度、抗压强度和拉伸强度。用销-盘式摩擦仪测试烧结复合材料的摩擦因数和磨损量。另外,通过磨损表面特征,利用SEM系统分析复合材料的摩擦磨损机制。结果表明,与石墨相比,二硫化钼的摩擦因数和磨损有所减少。 | P.NARAYANASAMY N.SELVAKUMAR | 2017 | Transactions of Nonferrous Metals Society of China2017，27，2： | 1 |
| 5 | 高流行区进行社区调查发现肺结核病例的意义:南印度Tirrvallur地区的一项比较性研究报告显示文摘背景:在南印度的Tirrvallur地区,作为DOTS项目的一部分,肺结核病人的发现主要由卫生机构(HF)来完成;另外,作为正在进行的一项流行病学研究的组成部分,通过社区调查(CS)对成人进行筛检也可以发现一部分病例。目的:对一年内由HF和CS发现的所有病人的社会人口学、临床学、细菌学特征以及治疗结局进行比较。结果:在32663名受调查的成人患者中共发现100例涂阳以及 116例涂阴肺结核病人;在65例已经开始化疗的涂阳病例中,44例已治愈。与HF病人相比,CS病人一方面年龄偏大(AOR=1.9)、男性较多(AOR=2.7)、文化程度较低(AOR=1.7)、居住条件较差(AOR=2.0);另一方面CS病人咳嗽3周以上(AOR=3.4)的比例以及涂阳比例较低(AOR=4.2)。在61名新发现涂阳CS病人中,40人报告有胸痛症状;其中32人(80%)已经就诊过,但未确诊。结论:即使在结核病高流行地区,社区调查对于肺结核病例发现也价值甚微。通过社区调查所发现的病例症状轻、传染性小,而且不到一半的人已经治愈。诊断性检查应面向年长、文化程度低的男性。 | T.Santha Garg Renu T.R.Frieden R.Subramani P.G.Gopi V.Chandrasekaran N.Selvakumar A.Thomas R.Rajeswari R.Balasubramanian C.Kolappan P.R.Narayanan 贺晓新 | 2003 | 国际结核病与肺部疾病杂志2003，，3： | 0 |
| 6 | 南印度Tiruvallur区二份标本涂片检查对肺结核诊断的有效性显示文摘背景:在南印度Tiruvallur区的一家综合医院及三家周边卫生机构(PHI)。目的:证实在肺结核诊断中二份与三份痰标本显微镜检查在病例发现策略上的有效性。方法:修订国家结核病控制规划(RNTCP)规定每个有症状的就诊于PHI的病人需采用萋尼氏染色方法进行三次痰涂片显微镜检查抗酸杆菌,我们对来自上述中心的结核病实验室登记册资料作了分析。结果:有胸部症状并有三次痰检结果者共7843例,其中895例(11.4%)至少有二次标本为涂阳。二次标本检查中以第1次即时痰及清晨痰(837例,93.5%)及清晨痰及第2次即时痰(843例,94.2%)的检出率最高。结论:二份痰涂片检查(即刻痰及清晨痰)与三次检查具有同等效果。 | P.G.Gopi R.Subramani N.Selvakumar T.Santha S.I.Eusuff P.R.Narayanan 张宗德 | 2005 | 结核与肺部疾病杂志2005，8，2： | 0 |
| 7 | Structural and Optical Properties of Graphene Oxide Prepared by Modified Hummers’Method显示文摘Graphene oxide was synthesized from graphite flakes using modified Hummers’method.The interlayer spacings of graphite,graphite oxide and graphene oxide were measured using X-ray diffraction technique.The C/O atomic ratios of graphite oxide and graphene oxide were calculated from XPS measurements.The transformation of graphite to graphite oxide and finally to graphene oxide was clearly observed from the micro-Raman spectroscopy data and was confirmed from the FESEM micrographs.UV-VIS-NIR spectrophotometer was used to study the absorbance of graphene oxide and reduced graphene oxide samples.Finally,the chemically reduced graphene oxide was heat-treated in air to obtain chemically modified graphene. | N.Selvakumar Uday Pradhan S.B.Krupanidhi Harish C.Barshilia | 2016 | Computers, Materials & Continua2016，，6： | 0 |
| 8 | Magnetic Flux Alignment Studies on Entrapped Ferrofuid Nanoparticles in Poly Vinyl Alcohol Matrix显示文摘Highly surface active super paramagnetic colloidal suspensions of nano crystalline ferrofluid have been synthesized through wet-chemical route.Entrapment of magnetic domains presented in the nano ferrofluid in a polymer matrix like poly vinyl alcohol film was accomplished by developing polymer composite film in between two magnetic poles by solvent casting method.Similarly poly vinyl alcohol-ferrofluid composite films were also developed in the absence of magnetic field.Atomic force microscopy image of nano-composite film makes it clear that the film developed in the absence of magnetic field possesses randomly oriented domains,whereas film developed with magnetic field shows well aligned flux lines.The characteristics and nature of forces acting between magnetic domains along the magnetic flux lines were explored from magnetic force microscopy imaging.The number of flux lines developed in the polymer matrix was observed to be directly proportional to applied external magnetic field.Approximate number of magnetic lines passing through unit area of composite film was evaluated from line profile data analysis of atomic force microscopy image.The particle sizes of the nanoparticles encapsulated in the polymer matrix were found to be in the range of 10e20 nm.Scanning electron microscopy micrographs confirm aggregation of ferrofluid particles of ribbon like morphology along the magnetic flux lines.Magnetic properties of the entrapped nanoparticles in polymer matrix film were analyzed using vibrating sample magnetometer at room temperature.The super paramagnetic nature and other magnetic properties were evaluated from the hysteresis loop. | K.Jeyasubramanian N.Selvakumar J.Ilakkiya P.Santhoshkumar Nikil Satish Sumanta Kumar Sahoo | 2013 | Journal of Materials Science & Technology2013，29，10： | 0 |
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