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Geoscience Frontiers 2013年第2期4卷 231-239页

作者： S.Sarangi R.srinivasan V.Balaram Department of Applied GeologyISM-Dhanbad.India 114 KshithijaRamanashree NagarBannerghatta Road P.O.Bangalore 560076India National Geophysical Research Institute(Council of Scientific and Industrial Research) Hyderabad 500 007.India

REE composition of the carbonates of the auriferous quartz carbonate veins（QCVs） of the Neoarchean Ajjanahalli gold *** schist *** Craton,is characterized by U-shaped chondrite normalized REE patterns with both LREE and HREE enrichment and a distinct positive Eu *** positive Eu anomaly is associated with low oxygen fugacity,we propose that the auriferous fluids responsible for gold mineralization at Ajjanahalli could be from an oxygen depleted *** observed positive Eu anomaly is interpreted to suggest the derivation of the auriferous fluids from a mantle *** location of Ajjanahalli gold deposit in a crustal scale shear zone is consistent with this interpretation.

关键词： U-shaped REE pattern Eu anomaly Quartz carbonate veins(QCVs) Orogenic gold deposits Dharwar Craton

Magnetoelectric Coupling in Bilayers of Pb（Zr, Ti）O3 Epoxy and Hot Pressed Manganite Perovskite

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Chinese Physics Letters 2006年第2期23卷 463-466页

作者：张宁印晓明王淼 Schneider T. srinivasan G. Department of Physics Nanjing Normal University Nanjing 210097 Department of Physics Oakland University Rochester MI 48309 USA

The synthesis and magnetoclectric （ME） characterization of bilayers of Pb（Zr, Ti）O3 （PZT） and hot pressed manganite perovskite La0.7Sr0.3MnO3 （LSMO） are discussed. Very strong ME interactions are measured for the bilayers. The bilayers exhibit superior ME coupling compared to thick-film composites prepared by tape casting process. Data of the ME voltage coefficient have been obtained as functions of bias magnetic field H, temperature and frequency. The transverse coupling is stronger than the longitudinal interactions and a maximum in the ME voltage coefficient is measured at 225K. The frequency dependence of the ME voltage coefficient reveals a peak at the electromechanical resonance due to radial modes.

关键词： LAMINATE COMPOSITES

Free radical scavenging potential and HPTLC analysis of Indigofera tinctoria linn(Fabaceae)

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Journal of Pharmaceutical Analysis 2016年第2期6卷 125-131页

作者： Sakthivel srinivasan Wankupar Wankhar Sheeladevi Rathinasamy Ravindran Rajan Department of Physiology Dr.ALM PG Institute of Basic Medical Sciences University of Madras

The objective of this study was to evaluate the free radical scavenging potential and high performance thin layer chromatography （HPTLC） fingerprinting of Indigofem tinctoria （I. tinctoria）, Phytochemical analysis was carried out using standard methods, and free radical scavenging activity of the plant was determined using 2,2-diphenyl-l-picrylhydrazy （DPPH）, nitric oxide （NO） and superoxide anion （O2-） radical scavenging capacities. HPTLC plate was kept in CAMAG TLC Scanner 3 and the Rf values at fin- gerprint data were recorded by WlNCATS software, Aqueous extract of I. tinctoria reliably showed the total phenolics （267.2 ± 2.42 mg/g）, flavonoids （75.43 ± 3.36 mg/g） and antioxidants （349.11 ±8.04 mg/g）. The extract was found to have DPPH （52.08%）, NO （23.12%） and 02 （26.79%） scavenging activities at the concentration of 250 pg/mL and the results were statistically significant compared with ascorbic acid standard （p 〈 0.05）. HPTLC results confirmed that the extract contained several potential active com- ponents such as phenols, flavonoids, saponins and terpenoids as the slides revealed multi-colored bands of varying intensities. This study confirmed that the plant had multipotential antioxidant and free ra- dicals scavenging activities.

关键词： Medicinal plants Indigofera tinctoria Antioxidants HPTLC

A Cascaded Discharge plasma—Adsorbent Technique for Engine Exhaust Treatment

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Plasma Science and Technology 2003年第3期5卷 1825-1833页

作者： B.S.Rajanikanth A.D.srinivasan B.Aryanandiny DeptofHighVoltageEngineering IndianInstituteofScienceBangalore560012India

A cascaded system of electrical discharges (non-thermal plasma) andadsorption process was investigated for the removal of oxides of Nitrogen (NO_x) and totalhydrocarbons (THC) from an actual diesel engine exhaust. The non-thermal plasma and adsorptionprocesses were separately studied first and then the cascaded process was studied. In this study,different types of adsorbents were used. The NO_x removal efficiency was higher withplasma-associated adsorption (cascaded) process compared to the individual processes and the removalefficiency was found almost invariant in time. When associated by plasma, among the adsorbentsstudied, activated charcoal and MS-13X were more effective for NO_x and THC removal *** experiments were conducted at no load and at 50 % load conditions. The plasma reactor was keptat room temperature throughout the experiment, while the temperature of the adsorbent reactor wasvaried. A relative comparison of adsorbents was discussed at the end.

关键词： discharge plasma engine exhaust adsorbent non-thermal plasma

Inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets as high-performance cathodes for aqueous zinc-ion batteries

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Nano Research 2019年第6期12卷 1347-1353页

作者： Hao Ren Jin Zhao Lan Yang Qinghua Liang srinivasan Madhavi Qingyu Yan School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore Energy Research Institute(ERI@N) Nanyang Technological UniversitySingapore 637553Singapore

Considering the high safety,low-cost and high capacity,aqueous zinc ion batteries have been a potential candidate for energy storage ensuring smooth electricity ***,we have synthesized inverse opal manganese dioxide constructed by few-layered ultrathin nanosheets by a solution template method at mild *** ultrathin nanosheets with the thickness as small as 1 nm are well separated without obvious *** as cathode material for aqueous zinc ion batteries,the few-layered ultrathin nanosheets combined with the inverse opal structure guarantee excellent performance.A high specific discharge capacity of 262.9 mAh·g^-1 is retained for the 100th cycle at a current density of 300 mA·g^-1 with a high capacity retention of 95.6%.A high specific discharge capacity of 121 mAh·g^-1 at a high current density of 2,000 mA·g^-1 is achieved even after 5,000 long-term *** ex-situ X-ray diffraction (XRD) patterns,selected-area electron diffraction (SAED) patterns and high-resolution transmission electron microscopy (HRTEM) results demonstrate that the discharge/charge processes involve the reversible formation of zinc sulfate hydroxide hydrate on the cathode while in-plane crystal structure of the layered bimessite MnO2 could be *** unique structured MnO2 is a promising candidate as cathode material for high capacity,high rate capability and long-term aqueous zinc-ion batteries.

关键词： inverse opal ultrathin few-layered nanosheets MnO2 zinc ion batteries

STUDIES ON THE INTERACTION OF EPOXY POLYMERS WITH HOMOPOLYUREAS

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Chinese Journal of Polymer Science 1989年第2期7卷 189-192页

作者： A. Mahammad Ibrahim V. Mahadevan M. srinivasan Department of Chemistry Indian Institute of TechnologyMadras-600 036INDIA.Department of ChemistryIndian Institute of TechnologyMadras-600 036INDIA.Department of ChemistryIndian Institute of TechnologyMadras-600 036INDIA.

INTRODUCTION Epoxy resins are reactive polymers which when cured with a variety of chemicals lead to a host of useful thermosets. Since the epoxide is a strained ring, it readily undergoes addition and homopolymerization. The homopolymerization is a process catalysed by acids, bases, Lewis acids, t-amines as well as by inorganic salts.

关键词： Homopolyureas Epoxy polymers

Properties of Semijoin Sequences

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Journal of Computer Science & Technology 1989年第2期4卷 106-115页

作者： BengC.Ooi B.srinivasan DepartmentofComputerScience MonashUniversityClaytonAustralia DepartmentofComputerScience MonashUniv

The problem of finding optimum semijoin sequ4ence of an arbitrary query under linear cost function for the transmission cost is *** heuristic algorithms with desirable properties are *** this paper four properties of semijoin programs for distributed query processing are identified,The use of these properties in constructing semijoin sequence is *** existing algorithm is modified incorporating these *** comparison with existing algorithms shows the superiority of the proposed algorithm.

关键词：分布式数据库系统数据处理数据查询

Protein phosphatase PP1γ2 in sperm morphogenesis and epididymal initiation of sperm motility

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Asian Journal of Andrology 2007年第4期9卷 445-452页

作者： Rumela Chakrabarti Lina Cheng Pawan Purl David Soler srinivasan Vijayaraghavan Department of Biological Sciences Kent State University Kent OH 44242-0001 USA

The serine/threonine phosphatase （PP1） isoform PP1γ2, predominantly expressed in the testis, is a key enzyme in spermatozoa. High PP1γ2 catalytic activity holds motility in check in immature spermatozoa. Inhibition of PP1γ2 causes motility initiation in immature spermatozoa and motility stimulation and changes in flagellar beat parameters in mature spermatozoa. The PP1γ2 isoform is present in all mammalian spermatozoa studied： mouse, rat, hamster, bovine, non-human primate and man. We have now identified at least four of its regulatory proteins that regulate distinct pools of PP1γ2 within spermatozoa. Our studies provide new insights into biochemical mechanisms underlying development and regulation of sperm motility. We hypothesize that changes in sperm PP1γ2 activity as a result of phosphorylation and reversible binding of the regulatory proteins to the catalytic subunit are critical in the development and regulation of motility and the ability of sperm to fertilize eggs. Targeted disruption of the Ppplcc gene, which encodes the PP1γ1 or PP1γ2 isoforms, causes male infertility in mice as a result of impaired spermiogenesis. Our observations suggest that, in addition to motility, the protein phosphatase PP1γ2 might play an isoform-specific function in the development of specialized flagellar structures of mammalian spermatozoa. （Asian J Androl 2007 July; 9： 445--452）

关键词： protein phosphatase epididymis sperm motility spermatogenesis

Novel ligand-based docking; molecular dynamic simulations;and absorption, distribution, metabolism, and excretion approach to analyzing potential acetylcholinesterase inhibitors for Alzheimer's disease

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Journal of Pharmaceutical Analysis 2018年第6期8卷 413-420页

作者： Subramaniyan Vijayakumar Palani Manogar srinivasan Prabhu Ram Avadhar Sanjeevkumar Singh Computational Phytochemistry Laboratory PG and Research Department of Botany and Microbiology AVVM Sri Pushpam College (Autonomous) Poondi Computer Aided Drug Design and Molecular Modeling Laboratory Department of Bioinformatics Alagappa University

Acetylcholinesterase(AChE) plays an important role in Alzheimer's disease(AD). The excessive activity of AChE causes various neuronal problems, particularly dementia and neuronal cell deaths. Generally, antiAChE drugs induce some serious neuronal side effects in humans. Therefore, this study sought to identify alternative drug molecules from natural products with fewer side effects than those of conventional drugs for treating AD. To achieve this, we developed computational methods for predicting drug and target binding affinities using the Schrodinger suite. The target and ligand molecules were retrieved from established databases. The target enzyme has 539 amino acid residues in its sequence alignment. Ligand molecules of 20 bioactive molecules were obtained from different kinds of plants, after which we performed critical analyses such as molecular docking; molecular dynamic(MD) simulations; and absorption, distribution, metabolism, and excretion(ADME) analysis. In the docking studies, the natural compound rutin showed a superior docking score of à 12.335 with a good binding energy value ofà73.313 kcal/mol. Based on these findings, rutin and the target complex was used to perform MD simulations to analyze rutin stability at 30 ns. In conclusion, our study demonstrates that rutin is a superior drug candidate for AD. Therefore, we propose that this molecule is worth further investigation using in vitro studies.

关键词： Alzheimer's disease Acetylcholinesterase Phytocompounds Molecular docking Free energy calculations Molecular dynamic simulations

A NEW POLYMERIC FLAME RETARDANT ADDITIVE FOR NYLON

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Chinese Journal of Polymer Science 1993年第1期11卷 16-21页

作者： M.srinivasan R.VASANTHAKUMARJ P.T.UTHIAH DR. BHARATRAM RESEARCH AND DEVELOPMENT CENTRE SRF LIMITED MANALI MADRAS 600 068 INDIADR. BHARATRAM RESEARCH AND DEVELOPMENT CENTRE SRF LIMITED MANALI MADRAS 600 068 INDIADR. BHARATRAM RESEARCH AND DEVELOPMENT CENTRE SRF LIMITED MANALI MADRAS 600 068 INDIA

The present paper deals with the use of a new polymeric flame retardant material, polyphenylene sulphide (PPS) for plastics. Incorporation of 15—20% PPS into nylon-6 has provided UL V-0 rating for the system and there is enhancement in tensile and flexural properties. The results obtained on the thermal, crystallization and flow characteristics of the nylon-PPS system upto a loading of 40% PPS are also discussed.

关键词： Polyphenylene sulphide Nylon-6 Flame retardent Blend Thermal stability UL V-0.