Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Search Results: 1 - 10 of 769 matches for " Anbu Natarajan "
All listed articles are free for downloading (OA Articles)
Page 1 /769
Display every page Item
A Clinical Evaluation of Nardostachys jatamansi in the Management of Essential Hypertension
Velpandian Venkatachalapathy,Sathya Balakrishnan,Mohammed Musthafa,Anbu Natarajan
International Journal of Pharmaceutical and Phytopharmacological Research , 2012,
Abstract: The present study was carried out to investigate the efficacy and safety of rhizome of Nardostachys jatamansi in the treatment of essential hypertension. An observational prospective study was done at Government Siddha Medical College Hospital, Chennai. Fifty patients of either sex in age group of 30 years to 70 years with established primary systemic hypertension without any co morbid illness were given finely powdered dried rhizome of Nardostachys jatamansi (Choornam) in the dose of 1 gm thrice a daywith honey for 30 – 60 days. The clinical efficacy with respect to symptoms and changes in systolic and diastolic blood pressure were assessed using sphygmomanometer prior to and throughout the treatment. At the end of the study majority of the patients showed a highly significant response in ways of remarkable reduction in blood pressure and various symptoms. Treatment with drug for 3 weeks produced significant improvement of systolic BP and Diastolic BP. None of the patients showed any adverse effects with NJ. The results of the present study suggested that the usefulness of NJ rhizomes in patients with essential hypertension. Changes in systolic BP and diastolic BP were analyzed statistically by Student's paired t- test. On the first visit the mean SBP and DBP was 163.76±1.21and 100.84±0.80 mm Hg respectively. After 8 weeks of therapy there was a statistically extremely significant fall in SBP (Mean±SEM) 123.24 ± 0.35 and DBP (Mean±SEM) 80.16 ± 0.27 mm Hg. P value (< 0.05) considered as significant.
Reclamation of Mercury from Used Silver Oxide Watch Batteries  [PDF]
Natarajan Sathaiyan
Advances in Chemical Engineering and Science (ACES) , 2014, DOI: 10.4236/aces.2014.41001

This paper deals with the reclamation of mercury from the used silver oxide quartz wristwatch batteries employing leaching-cementation technique. The used batteries are first crushed to liberate the encapsulated active material from the case which is leached in nitric acid to bring all metal contents into solution. After the removal of silver in the solution as silver chloride by precipitation, the mercury which is present as Hg2+ in the solution has been reclaimed through cementation with zinc dust. Various effects like zinc sheet and dust, zinc quantity, pH of the solution, duration and temperature have been carried out to standardise the conditions for maximum mercury reclamation. At a temperature of 45 and at 3.9 pH, 92.3% of mercury was recovered using 74 μm size zinc dust with purity greater than 99.78% and the same is characterized by XRF and the results are discussed.

A note on Ruscheweyh type of integral operators for uniformly -convex functions
M. Anbu Durai,R. Parvatham
International Journal of Mathematics and Mathematical Sciences , 2002, DOI: 10.1155/s0161171202006920
Abstract: We prove that the class of uniformly α-convex functions introduced by Kanas is closed under the generalized Ruscheweyh integral operator for 0<α≤1.
Cobalt Recovery from Waste Catalysts (Petroleum Refining Industry from Gujarat)  [PDF]
Palanivel Sivasakthi, Natarajan Sathaiyan
Open Journal of Metal (OJMetal) , 2012, DOI: 10.4236/ojmetal.2012.21004
Abstract: A hydrometallurgical process has been developed for cobalt recovery from a waste catalyst (petroleum refining industry). This waste catalyst containing about 2.18 weight % of Co, is highly contaminated by Mg, Al, Si, Ca, Fe, Ni, Cu, Zn, Mo. The major steps are: (I) The spent catalyst is roasted with flux material in an electrical furnace at very high temperature (700?C) for a specific duration. (II) The roasted sample is leached with sulphuric acid to bring the metal contents into solution form. (III) For separating cobalt values from the leach solution, the solution pH is raised by NaOH addition, where all cobalt content is precipitated at a pH of about 12. (IV) This cobalt hydroxide precipitate is filtered and dissolved in minimum amount of sulphuric acid to get cobalt sulphate solution which is used as the electrolyte for the electrolytic recovery of cobalt. For optimizing various parameters like (1) H2SO4 concentration; (2) Duration; (3) Cobalt concentration; (4) Current density; (5) Temperature; (6) Stirring etc., The particle surface morphology and deposited layers have been characterized by scanning electron microscopy (SEM). A compact metallic deposit containing 70% cobalt was obtained.
Bulk Growth and Characterization of D-(–)-Alanine Single Crystals  [PDF]
Kalimuthu Moovendaran, Subramanian Natarajan
Journal of Crystallization Process and Technology (JCPT) , 2013, DOI: 10.4236/jcpt.2013.34021

Single crystal of D-()-alanine (DALA), a non-linear optical material from the amino acid family was grown using a home-made crystal growth setup. The crystals of DALA were also grown by slow evaporation solution technique (SEST). The grown crystals were characterized by using single crystal X-ray diffraction, high resolution X-ray diffraction (HRXRD) and UV-vis-NIR and CD spectroscopy. Measurements of Vicker’s microhardness, laser damage threshold (LDT) value and second harmonic generation (SHG) efficiency are also reported. Thermal and dielectric studies were also carried out.

Electrochemical studies on inert filler incorporated poly (vinylidene fluoride - hexafluoropropylene) (PVDF - HFP) composite electrolytes
Wilson, J.;Ravi, G.;Kulandainathan, M. Anbu;
Polímeros , 2006, DOI: 10.1590/S0104-14282006000200006
Abstract: the ionic conductivity, thermal stability and lithium transference number have been investigated in composite polymer electrolytes (cpe) of poly(vinylidene fluoride - hexafluoropropylene) (pvdf-hfp) incorporating nano fillers of alo[oh]n or gal2o3, with liclo4 as salt. the compatibility of the composite polymer electrolyte with lithium metal anode has also been studied. the effect of particle size on the compatibility of li/ cpe/ li symmetric cells has also been analyzed.
Improved Search Efficiency in Unstructured Peer to Peer Networks Using Search Result Path Caching
S. Anbu,K.P. Thooyamani
International Journal of Soft Computing , 2012,
Abstract: The huge popularity of recent Peer-to-Peer (P2P) file sharing systems has been mainly driven by the scalability of their architectures and the flexibility of their search facilities. Such systems are usually designed as Unstructured P2P networks. So, designing an efficient search algorithm is a key challenge in unstructured peer-to-peer networks due to the unstructured paradigm. In this study, we proposed a Search Result Path Caching algorithm (SRPC). The proposed scheme combines the Dynamic Search (DS) algorithm and result path caching for effective search. This proposed algorithm takes the advantages from dynamic search and path caching technique works with the queried results. After the successful discovery of results the queries are returned to originator, according to our proposed algorithm the originator will stores the results for future references. In future stored references are used to search the information without querying the overall network. We analyze the performance of our algorithm based on some performance metrics including the success rate, search time and search efficiency. The numerical results shows that the proposed SRPC algorithm performs about 5 times better than DS, 125 times better than flooding and 275 times better than Random Walk (RW) in power-law graphs.
Influence of Genotype and Manufacturing Process on the Activity of β-D-Glucosidase and β-Galactosidase in Tea
S. Venkatesan,S. Daisylin Anbu Sujitha
American Journal of Plant Physiology , 2007,
Abstract: Tea flush shoots comprising three leaves and a bud were harvested from 20 different cultivars planted in a single area of UPASI Tea Research Farm and analyzed for β-D-glucosidase and β-galactosidase activities. Among the cultivars studied a range of variability of 0.63 to 5.45 units of β-galactosidase activity and 0.06 to 1.91 units of β-D-glucosidase activity was observed. This result suggested the influence of genotype on these enzymes. The activity was higher in actively growing tea tissues (bud) and lowest in bark of the tea plant. At any given stage of black tea manufacture β-galactosidase activity was higher than that of β-D-glucosidase. During manufacturing process the activity of both enzymes varied widely and remained maximum in withered leaves. The insignificant correlation coefficient obtained for these two enzymes with productivity suggest that they cannot be used as one of the biochemical tools to predict the yield potential of tea cultivar. The flavour analysis carried out in green leaf, withered leaf, cut dhool, fermented dhool, made tea and tea brew indicated that not even a single flavour compound was found maximum in green leaf. This provides important information that most of the flavour compounds are produced after harvest.
Combining ability analysis for yield and its component traits in Blackgram (Vigna mungo (L.) Hepper)
Y.Anbu Selvam and R.Elangaimannan
Electronic Journal of Plant Breeding , 2010,
Abstract: A diallele analaysis of 8 x 8 was studied in black gram (Vigna mungo) with a view to understand the combining ability, nature of gene action andpotential for the exploitation of heterosis using nine quantitative characters viz., days to first flower, plant height, number of branches per plant,number of clusters per plant, number of pods per cluster, number of pods per plant, number of seeds per pod, hundred seed weight and seed yieldper plant in 28 hybrids and their eight parents. The parent ADT 3 recorded relatively high per se performance for seed yield, hundred seedweight, number of clusters per plant, number of pods per cluster, number of pods per plant and number of branches per plant with early floweringand short stature. Among the hybrids, ADT 3/99V48, ADT 3/LBG 645 and 2KU 53/LBG 645 were found to have high mean performance foralmost all the yield component characters besides seed yield. The gca effect of the genotypes ADT 3, LBG 645 and 2 KU 53 was high andsignificant for the traits seed yield per plant besides number of pods per cluster, number of pods per plant and number of seeds per pod. The SCAvariance was greater than GCA variance for all the traits studied thus indicating the predominance of non-additive gene action. Among thehybrids, ADT 3/99V48 recorded the maximum significant sca effect indicating their suitability for heterosis breeding. The hybrids ADT 3/ LBG645 and 2 KU 53/ LBG 645 recorded non significant sca effects for almost all the traits studied including seed yield per plant. Hence, these twocrosses were adjudged as superior for recombination breeding based on sca effects
Aruna Devaraj R,Nirmala Anbu Rani R
Journal of Pharmaceutical and Scientific Innovation , 2012,
Abstract: Diabetes mellitus is a metabolic cum vascular syndrome of multiple etiologies characterized by chronic hyperglycemia with malfunction of carbohydrate, fat and protein metabolism. Medical plants play an important role in the management of diabetes mellitus especially in developing countries. Many ethnobotanical surveys on medicinal plants used by the local population have been performed in different parts of the world. The large numbers of herbals have demonstrated the importance of medicinal plants in the treatment and management of complications associated with diabetes. The effects of these plants may delay the development of diabetic complications and correct the metabolic abnormalities. Moreover, during the past few years some of the new bioactive drugs isolated from hypoglycaemic plants showed antidiabetic activity with more efficacy than oral hypoglycaemic agents used in clinical therapy. Further, medicinal plants are also expected to serve as natural storehouse of novel antidiabetic leads.
Page 1 /769
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.