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| 1 | Design of internal model control based fractional order PID controller显示文摘这篇文章介绍基于的内部模型控制(IMC ) 的一个图案自由(SDF ) 的单个度有部分顺序系统(FOS ) 的一个类的一个需要的带宽说明的部分顺序(FO ) PID 控制器。SDF FO-IMC 的缺点被消除在的帮助下自由(TDF ) 二度 FO PID 控制器。柔韧的稳定性和设计控制器的柔韧的性能用一个例子被分析。 | T.VINOPRABA N.SIVAKUMARAN S.NARAYANAN T.K.RADHAKRISHNAN | 2012 | 控制理论与应用(英文版)2012,10,3: | 13 |
| 2 | Pure and Mg-doped self-assembled ZnO nano-particles for the enhanced photocatalytic degradation of 4-chlorophenol显示文摘A novel self-assembled pure and Mg doped ZnO nano-particles(NPs) were successfully synthesized by a simple low temperature co-precipitation method. The prepared photocatalysts were characterized by X-ray difraction, high resolution scanning electron microscopy, high resolution transmission electron microscopy, difuse reflectance spectroscopy and photoluminescence(PL) spectroscopy.The results indicated that the prepared photocatalysts showed high crystallinity with a uniform size distribution of the NPS. The degradation of cholorphenols is highly mandatory in today's scenario as they are afecting the environment adversely. Thus, the photocatalytic degradation of 4-chlorophenol(4-CP), a potent endocrine disrupting chemical in aqueous medium was investigated by both pure and Mg-doped ZnO NPs under UV-light irradiation in the present study. The influence of the Mg content on the structure,morphology, PL character and photocatalytic activity of ZnO NPs were investigated systematically. Furthermore,the efect of diferent parameters such as 4-CP concentration, photocatalyst amount, pH and UV-light wavelength on the resulting photocatalytic activity was investigated. | N.Clament Sagaya Selvam S.Narayanan L.John Kennedy J.Judith Vijaya | 2013 | Journal of Environmental Sciences2013,25,10: | 8 |
| 3 | 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 |
| 4 | 经Opuntia dilenii haw植物提取液绿色合成制备的纳米铝酸锌的催化性质(英文)显示文摘Various nanosized zinc aluminate(ZnAl2O4) samples were prepared by a conventional and a mi- crowave method both with and without using Opuntia dilenii haw plant extract,and were charac- terized by X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),high resolution scanning electron microscopy(HRSEM),energy dispersion scanning(EDX),temperature dependent conductance measurements, thermoelectric power measurements, ultraviolet-visible (UV-Vis) diffuse reflectance spectroscopy,and photoluminescence spectroscopy.The formation of a pure ZnAl2O4 phase was confirmed by XRD and FT-IR.A change in morphology from nanosized plates to nanosized sheets with,respectively,the conventional and microwave heating methods was clearly shown by HRSEM.UV-Vis diffusion reflectance spectroscopy measured the band gaps of ZnAl2O4 nanosized plates and nanosized sheets as 3.5 and 3.9 eV,respectively.The synthesized ZnAl2O4 was single crystalline and has three photoluminescence emissions at 482,528,and 540 nm.ZnAl2O4 nanosized sheets prepared by the microwave method showed higher catalytic activity for the oxida- tion of benzyl alcohol(85% conversion) than ZnAl2O4 nanosized plates prepared by the convention- al method(60% conversion). | C.Ragupathi J.Judith Vijaya S.Narayanan L.John Kennedy Seeram Ramakrishna | 2013 | 催化学报2013,34,10: | 1 |
| 5 | Optimal semi-active preview control response of a half car vehicle显示文摘 | R.S.Prabakar C.Sujatha S.Narayanan | | 0,,326: | 1 |
| 6 | Triton X-100辅助合成多级孔道结构ZSM-5沸石催化剂(英文)显示文摘ZSM-5 zeolite with a hexagonal cubic morphology was synthesized by a hydrothermal method using Triton X-100, a nonionic surfactant. The samples prepared with and without the surfactant were characterized by X-ray diffraction(XRD), Fourier transform infrared spectroscopy, N2 adsorption, high resolution transmission electron microscopy(TEM), high resolution scanning electron mi-croscopy, energy dispersive X-ray analysis, and NH3 temperature-programmed desorption. The XRD patterns confirmed the formation of a pure ZSM-5 crystalline phase without secondary phases. TEM images revealed that the hexagonal cubes were made of peanut-shaped nanoparticles with voids.The catalytic activity of the zeolite samples was evaluated using the selective oxidation of benzyl alcohol with tertiary-butyl hydrogen peroxide as the oxidant at 90 °C. The surfactant-assisted prep-aration yielded a zeolite that gave a higher conversion than the one prepared in the absence of the surfactant. The catalyst was retrieved and reused four times without significant loss in activity and selectivity. | S.Narayanan J.Judith Vijaya S.Sivasanker Sihai Yang L.John Kennedy | 2014 | 催化学报2014,35,11: | 0 |
| 7 | Hot Corrosion Behavior of Friction Welded AISI 4140 and AISI 304 in K_2SO-60% NaCl Mixture显示文摘Understanding the behavior of weldment at elevated temperatures and especially the corrosion behavior has become an object of scientific investigation recently.Investigation has been carried out on friction welded AISI 4140 and AISI 304 in molten salt of K 2 SO 4-60% NaCl environment at 550,600 and 650 C under cyclic condition.The resulted oxide scales in the weldment have been characterized systematically by surface analytical techniques.From the results of the experiments,it is observed that the scale thickness on low alloy steel side was higher than that on stainless steel side.Furthermore,weld interface has been found to be more susceptible to degradation than base metals due to inter diffusion of element across the interface and the formation of intermetallic compound.The influences of welding parameters and the temperature of exposure on the hot corrosion behavior of the weldment were discussed in this paper. | N.Arivazhagan K.Senthilkumaran S.Narayanan K.Devendranath Ramkumar S.Surendra S.Prakash | 2012 | Journal of Materials Science & Technology2012,28,10: | 0 |
| 8 | 发掘在中国采购的潜力显示文摘很多美国公司将采购活动转移到了廉价商品的来源地中国,但他们尚未充分发掘中国在采购方面所具有的潜力。尽管面临员工高流失率等种种困难,美国公司普遍计划加大在中国的采购力度。最近,我们访问了39家在中国设有采购办事处的美国公司。据受访者估计,尽管有很多商品可以在中国采购,但他们仅从中国采购了其中的30%,而3年后这个比例将上升到50%。此外,受访者公司估计从中国采购产生的开支节省只实现了1/4的水平,而3年后这个比例可能上升为40%。 | 何杰明 Ananth S.Narayanan | 2006 | 商学院2006,,7: | 0 |
| 9 | 发达国家与发展中国家稻米政策比较显示文摘 | 林海 庞乾林 阮刘青 A.Eulati S.Narayanan | 2004 | 中国稻米2004,10,5: | 0 |