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| 1 | Seed Extract of Psidium guajava as Ecofriendly Corrosion Inhibitor for Carbon Steel in Hydrochloric Acid Medium显示文摘The anticorrosion characteristics of the seeds of Psidium guajava (P. guajava) fruits on carbon steel in acid medium were examined with weight loss data and subsequently thermodynamic factors such as heat of adsorption of the inhibitor on the metal surface (Q), change in entropy (△S), change in free energy of the reaction (△G), corrosion rate (CR) and energy of activation for corrosion reaction of carbon steel (E) were also evaluated. Adsorption isotherm was plotted to study the adsorption of the inhibitor on the metal surface with increasing concentration of the inhibitor. The functional groups responsible for inhibition were investigated using Fourier transform infrared (FT-IR) spectra. Electrochemical parameters were evaluated through the potentiodynamic Tafel polarization and impedance spectral studies. Scanning electron microscopy (SEM) micrographs were recorded to investigate the change in surface morphology. The complete study reveals the e?ciency of seed extract of P. guajava as a safe, ecofriendly and alternate corrosion inhibitor for carbon steel in acid medium. | K.P.Vinod Kumar M. Sankara Narayana Pillai G. Rexin Thusnavis | 2011 | Journal of Materials Science & Technology2011，27，12： | 11 |
| 2 | Metallurgical analysis of a failed maraging steel shear screw used in the band separation system of a satellite launch vehicle显示文摘Maraging steels have excellent combination of strength and toughness and are extensively used for a variety of aerospace applications. In one such critical application, this steel was used to fabricate shear screws of a stage separation system in a satellite launch vehicle. During assembly preparations, one of the shear screws which connected the separation band and band end block has failed at the first thread. Microstructural analysis revealed that the crack originated from the root of the thread and propagated in an intergranular mode. The failure is attributed to combined effect of stress and corrosion leading to stress corrosion cracking. | S.V.S. Narayana MURTY Sushant K. MANWATKAR E Ramesh NARAYANAN | 2016 | Defence Technology(防务技术)2016，12，5： | 5 |
| 3 | Effects of variable permeability and radiation absorption on magnetohydrodynamic(MHD)mixed convective flow in a vertical wavy channel with traveling thermal waves显示文摘An analysis has been carried out to study the effects of radiation absorption and firstorder chemical reaction on unsteady mixed convective flow of a viscous incompressible electrically conducting fluid through a porous medium of variable permeability between two long vertical non conducting wavy channels in the presence of heat generation.The unsteadiness in the flow is due to traveling thermal wave imposed on the walls.The governing equations are solved subject to the relevant boundary conditions with the assumption that the solution consists of a mean part and a perturbed part.The zeroth-order,the first order and the total solution of the problem are numerically evaluated and displayed graphically for pertinent parameters.This model finds applications in studying fixed-bed catalytic reactors and packed bed heat exchangers. | P.V.Satya Narayana | 2015 | Propulsion and Power Research2015，4，3： | 4 |
| 4 | 采用遗传算法和基于断裂准则的破坏机理进行复合板优化设计显示文摘基于破坏机制、最大应力和Tsai-Wu破坏准则,提出复合层压板的最小质量设计。其目的是论证复合材料设计中最近提出的FMB破坏准则的有效性。破坏准则认为不同的破坏机制,如,纤维破坏、模具破裂、纤维压缩破坏以及模具压碎,与不同的荷载条件相关。将遗传算法用于优化研究中,当层压板受到压-压荷载时,与破坏机制和最大破坏应力准则相比,在破坏包络图的第三象限,Tsai-Wu破坏准则预测超过预期层压板质量达到86%。破坏机制以及最大破坏应力标准给出了可比较的质量标准。破坏准则可以考虑用于复合结构的强度设计。 | G. Narayana Naik S. Gopalakrishnan Ranjan Ganguli | 2008 | 钢结构2008，23，9： | 4 |
| 5 | Resveratrol as an inductor of autophagy: is there a unique pathway of activation?显示文摘Autophagy is a process of cellular degradation for the removal of damaged components and eventual recycling of the resulting molecules that help to the maintenance of cellular homeostasis.Through this pathway,proteins with relatively long half-life and whole organelles(e.g.,mitochondria,peroxisomes,and ribosomes)are degraded in the cytoplasm for the continuous turnover of cellular structures to facilitate their renewal.However,the beneficial effect of autophagy goes beyond cellular“cleaning”and resides to a large extent on its ability to recycle cell components back into the cytosol.Thus,autophagy is a fundamental mechanism to regulate cellular functions,including DNA repair,proliferation,differentiation,embryonic development,and the immune response. | Narayana Pineda-Ramírez Penélope Aguilera | 2021 | Neural Regeneration Research2021，16，1： | 3 |
| 6 | Comparison between two methods of drain clamping after total knee arthroplasty显示文摘 | Narayana Prasad Vinod Padmanabhan Arun Mullaji | 2005 | Archives of Orthopaedic and Trauma Surgery2005，，6： | 2 |
| 7 | 直接利用PCR产物构建RNA干扰表达载体显示文摘利用RNA干扰原理可以对作物进行遗传改良。构建RNA干扰的发夹结构一般采用在引物两端加酶切位点方法,该方法涉及酶切位点多,步骤繁琐。本试验介绍一种直接利用PCR产物进行RNAi组成型表达载体构建的方法,该载体以潮霉素为筛选标记基因,适合水稻的遗传转化。 | 杨杰 仲维功 王才林 柳青 王明波 Narayana M.Upadhyaya | 2010 | 华北农学报2010，25，5： | 2 |
| 8 | Spectrophotometric Determination of Hydrogen Peroxide in Water and Cream Samples显示文摘 | K. Sunil B. Narayana | 2008 | Bulletin of Environmental Contamination and Toxicology2008，，4： | 2 |
| 9 | Foraminiferal biostratigraphy of lignite mines of Kutch,India:Age of lignite and fossil vertebrates显示文摘The lignite deposits of Kutch, India are stratigraphically referred to the Naredi Formation and considered to be Early Eocene in age. The biostratigraphy of the older mine at Panandhro and a newly opened mine at Matanomadh has constrained the upper age limit of lignite to the early Bartonian. Its lower age may extend to the late Lutetian. Temporally the formation of lignite corresponds to the warming event of the Middle Eocene and suggests a humid climate at the onset of the warming. The previous palynological studies have already suggested dominance of tropical angiospermic pollen. A diverse assemblage of fossil whales and other vertebrates, many of them supposedly the oldest representatives, were reported from Panandhro mine. These were initially assigned to the Early Eocene and later to the Lute? tian age. The present biostratigraphic study revises their age to the Early Bartonian. | Pratul Kumar Saraswati Sonal Khanolkar Dalta Surya Narayana Raju Suryendu Dutta Santanu Banerjee | 2014 | Journal of Palaeogeography2014，3，1： | 2 |
| 10 | Pituitary Autoimmunity in Patients with Sheehan's Syndrome显示文摘 | Ravinder G Narayana K Patricla A | 2002 | The Journal of Clinical Endocrinology and Metabolism2002，87，9： | 1 |
| 11 | Histological correlation of diffusion tensor imaging metrics in experimental spinal cord injury显示文摘 | Herrera JJ Chacko T Narayana PA | 2008 | J Neurosci Res2008，86，2： | 1 |
| 12 | SOCS3 expression induced by PIM2 requires PKC and PI3K signaling 显示文摘 | Narayana Y Bansal K Sinha AY | 2009 | Mol Immunol2009，46，15： | 1 |
| 13 | LC method for the determination of as say and purity of sibutra-mine hydrochloride and its enantiomers by chiral chromatogra-phy显示文摘 | Radhakrishna T Lakshmi Narayana C H Sreenivas Rao D | 2000 | Journal of Pharmaceutical and Biomedical Analysis2000，22，4： | 1 |
| 14 | Characteri- zation of an experimental spinal cord injury model using waveform and morphometric analysis显示文摘 | Falconer JC Narayana PA Bhattacharjee M | 1996 | Spine1996，21，1： | 1 |
| 15 | Use of anti-craving agents in soldiers with alcohol dependence syndrome显示文摘 | Narayana PL Gupta AK Sharma PK | 2008 | Med J Armed Forces India2008，64，4： | 1 |
| 16 | Characterization of an experimental spinal cord injury model using waveform and morphometric analysis显示文摘 | Falconer JC Narayana PA Bhattacharjee M | 1996 | Spine1996，21，1： | 1 |
| 17 | Proton magnetic resonance spectroscopy in multiple sclerosis 显示文摘 | Sajja BR Wolinsky JS Narayana PA | 2009 | Neuroimaging Clin N Am2009，19，1： | 1 |
| 18 | Defined vanadium phosphorus oxides and their use as highly effective catalysts in ammoxidation of methyl aromatics显示文摘 | Andreas Martin V Narayana Kalevaru Bernhard Lucke | 2003 | Catalysis Today2003，，78： | 1 |
| 19 | Reeyelable heterogeneous copper oxide on alumina catalyzed coupling of phenols and alco- hols with aryl halides under ligand-free conditions 显示文摘 | Kokkirala Swapna Sabbavarapu Narayana Murthy Moehar- la Tarani Jyothi | 2011 | Org Biomol Chem2011，9，： | 1 |
| 20 | Histological correlation of diffusion tensor imaging metrics in experimental spinal cord injury显示文摘 | Herrera J J Chacko T Narayana PA | 2008 | J Neurosci Res2008，86，： | 1 |
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