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372篇 您的检索式:作者名="Devi P P"
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1Antimicrobial potential of selected brown seaweeds from Vedalai coastal waters,Gulf of Mannar显示文摘Objective:To evaluate the antimicrobial activity of Turbinaria conoides(T.conoides).Padina gymnospora(P.gymnospora) and Sargassum tenerrimum against human bacterial and fungal pathogens.Methods:The antimicrobial activities of the extracts against various organisms were tested by using disc diffusion method.Results:The methanol extract showed the better result than the other extracts.Whereas,the strong antibacterial inhibition was noted in methanol extracts of P.gymnospora against Bacillus subtilus(26.33±1.86) and the mild inhibition of ethanol extracts from T.conoides against Klebsiella pneumoniae(2.33±0.51).Acetone extraction of P. gymnospora had strong antifungal inhibition against Cryptococcus neoformans(23.00±1.78), and acetone extract of T.conoides had mild inhibition against Aspergillus niger(3.00±0.89). Conclusions:The seven different solvent extracts of seaweeds used in the present study have shown significant bacterial action.Further,a detailed study on the principle compound in the seaweeds which is responsible for antimicrobial activity is still needed and it can be achieved by using advanced separation techniques.Manivannan K Karthikai devi G Anantharaman P Balasubramanian T 2011Asian Pacific Journal of Tropical Biomedicine2011,1,2:9
2七级变频器的PI控制器的优化以辅助电网交互式RES控制器显示文摘随着能源需求的巨大增长,当前的电力系统急需适应新的要求,能将再生能源接入电网从而整合利用可再生能源。多级变频器(MLI)可在两种不同的模式下实现这个功能,即发电模式(独立模式)和补偿器模式(STATCOM)。目前,对于不同工况的单一类型负荷的变化,如无功负荷的变化,优化控制器增益的研究很少。这类负荷的稳定性不好的问题急需解决。因此,一个适用的优化算法尤显重要。本文介绍了一种基于优化辅助PI控制器的七级变频器控制设计算法。在所提出的算法中,PI控制器的增益是根据系统的运行条件,通过采用混合方案,即龙形更新的灰色优化器(GD-LU),对增益进行动态调整,使参考信号与故障信号之间的误差最小,以便所提出的优化PI控制器可以获得更好的动态性能。提出的算法是灰狼优化(GWO)和蜻蜓算法(DA)的组合版本。最后,对所提出算法的性能与其他先进的模型就误差方面进行了比较和验证。GAYATHRI DEVI K S SUJATHA THERESE P 2021Journal of Central South University2021,28,1:2
3In vitro effects of natural plant polyphenols on the proliferation of normal and abnormal human lymphocytes and their secretions of interleukin-2显示文摘Devi M A Das N P 1993Cancer Lett1993,69,3:1
4Radiation protection by the ocimum flavonoids orientin and vicenin:mechanisms of action 显示文摘Uma Devi P Ganasoundari A Vrinda B 2000Radiat Res2000,154,4:1
5Seasonal Dynamics in Soil Microbial Biomass C, N and P in a Mixed-Oak Forest Ecosystemof Manipur, North East India显示文摘DEVI N B YADAVA P S 2006Appl Soil Ecol2006,31,:1
6Eugenol (an essentbd oil of clove) acts as an antibacterial agent against Salmonella typhi by disrupting the cellular membrane 显示文摘Devi K P Nisha S A Sakthivel R 2010J Ethnophannacol2010,130,1:1
7Crystallin gene mutation in Indian families with inherited pediatric cataract显示文摘Devi RR Yah W Vijayalakshmi P 2008Mol Vis2008,14,:1
8Seasonal dynamics in soil microbial biomass C, N and P in a mixed-oakforest ecosystem of Manipur, North- east India显示文摘Bijayalaxmi Devi N Yadava P S 2006Appolied Soil Ecology2006,31,3:1
9Effect of fixed dose combinations of metoprolol and amlodipine in essential hyper- tension: MARS- -a randomized controlled trial 显示文摘Devi P Xavier D Sigarnani A 2011Blood Press Suppl2011,2,:1
10Physical properties ofcryomilled rice starch显示文摘Devi A F Fibrianto K Torley P J 2009Journal of Cereal Science2009,49,2:1
11Performance of asmall aquatic plant wastewater treatment system under Carib-bean conditions显示文摘BRAMWELL S A DEVI PRASAD P V 1995Journal of Environment Management1995,44,3:1
12Effect of linear alkylbenzene sulfonate on Scenedesmus quadricauda in cudture 显示文摘CHAWLA G VISWANAHAN P DEVI S 1986Environ Exp Botany1986,1,:1
13Unicornuate uterus with non- communicating rudimentary horn-different clinical presentations 显示文摘Goel P Aggarwall A Devi K 2005ObstetGynecol India2005,55,2:1
14Assessment of plant biodiversity at a mid elevation evergreen forest of KalakkadMundanthurai Tiger Reserve,Western Ghats,India显示文摘Ganesh T Ganesan R Devi MS Davidar P Bawa KS 0,,:1
15Evolutionary programming based security constrained optimal power flow显示文摘Somasundaram P Kuppusamy K Kumudini Devi R P 2004Electric Power Systems Research2004,72,2:1
16Physical properties of cryomilled rice starch 显示文摘Devi A F Fibrianto K Torley P J 2009Journal of Cereal Science2009,49,2:1
17Cost-effective production of Bacil-lus thuringiensis by solid-state fermentation显示文摘DEVI P S V RAVINDER T JAIDEV C 2005Journal of Invertebrate Pa-thology2005,88,:1
18Novel mutations in GJA8 associated with autosomal dominant congenital cataract and microcomea显示文摘Devi RR Vijayalakshmi P 2006Mol Vision2006,12,:1
19Synthesis of the magnetic biochar composites for use as an adsorbent for the removal of pentachlorophenol from the effluent 显示文摘Devi P Saroha A K 2014Bioresour Technol2014,169,:1
20Blood stage malaria anti-gens induce different activation-lnduced cell death programs in splenic GD4 + T cells 显示文摘Mukherjee P Devi YS Chauhan VS 2008Parasite Immunol2008,30,10:1
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