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Journal of Agricultural Science and Technology(B) 2011年第6期1卷 783-789页

作者： m. C. Rem.ny DalyCyriac D. Kannanl, A. K. Panda Jaideep Kum.r Y. C. Tham.i Sam.aj Aquatic Quarantine Facility for L. vannam.i Rajiv Gandhi Centre for Aquaculture TNFDC Hatchery Complex Neelankarai Chennai 600041 Tamil Nadu India Technology Transfer Training ＆ Adm.nistrative Com.lex Rajiv Gandhi Centre for Aquaculture Nagapattinam Sirkali 609109 Tamil Nadu India

The Aquatic Quarantine Facility （AQF） for Litopenaeus vannam.i established under the Departm.nt of Anim.l Husbandry, Dairying and Fisheries, m.nistry of Agriculture is located on the eastern coastal region of Chennai in Tam.l Nadu, India. The facility is an approved quarantine prem.se for the SPF vannam.i broodstock im.orted across India and is probably the only one of its kind to be established in Southeast Asia. The centre is m.naged and operated by Rajiv gandhi Centre for Aquaculture （RGCA）, a technical extension of the m.rine Products Export Developm.nt Authority （m.EDA）, m.nistry of Com.erce ＆ Industry, Governm.nt of India. The quarantine facility functions on the basis of strict biosecurity protocol and as per the guidelines stipulated in Standard Operating Procedures （SOP） fram.d by a team.of experts. The facility ensures specific pathogen free status of the SPF L. vannam.i broodstock im.orted to India, thus playing key role in restricting the entry of diseases to the Country. This article presents the SPF certification process of the im.orted L. vannam.i carried out at the facility.

关键词： Aquatic quarantine facility specific pathogen free standard operating procedures L. vannam.i broodstock and biosecurity.

m.deling of aggregation kernels for fluidized beds using discrete particle m.del sim.lations

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Particuology 2014年第2期12卷 134-144页

作者： Nageswara Rao Narni m.rko Peglow Gerald Warnecke Jitendra Kum.r Stefan Heinriche J.A.m.Kuipers Departm.nt of m.them.tics Rajiv Gandhi University of Knowledge TechnologiesGachibowliHyderabad 500032India Institute for Process Engineering Otto-von-Guericke-University MagdeburgUniversitatsplatz 2D-39106 MagdeburgGermany Institute for Analysis and Num.rics Otto-von-Guericke-University MagdeburgUniversitatsplatz 2D-39106 MagdeburgGermany Departm.nt of m.them.tics ⅡT KharagpurIndia Institute of Solids Process Engineering and Particle TechnologyHamburg University of TechnologyHamburgGermany Eindhoven University of Technology-Sm. P.O.Box 5135600 MB EindhovenThe Netherlands

Aggregation is one of the m.ny im.ortant processes in chem.cal and process engineering. Several researchers have attem.ted to understand this com.lex process in fluidized beds using the m.cro-m.del of population balance equations （PBEs）. The aggregation kernel is an effective param.ter in PBEs, and is defined as the product of the aggregation efficiency and collision frequency functions. Attem.ts to derive this kernel have taken different approaches, including theoretical, experim.ntal, and em.irical techniques. The present paper calculates the aggregation kernel using m.cro-m.del com.uter sim.lations, i.e., a discrete particle m.del. We sim.late the m.cro-m.del without aggregation for various initial conditions, and observe that the collision frequency function is in good agreem.nt with the shear kernel. We then sim.late the m.cro-m.del with aggregation and calculate the aggregation efficiency rate.

关键词： Aggregation kernelsm.lti-phase flowCollision frequency functionAggregation efficiency rateBed param.ter

Structural and photolum.nescence studies on europium.doped lithium.tetraborate(Eu:Li2B4O7)single crystal grown by m.crotube Czochralski(μT-Cz)technique

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Chinese Physics B 2016年第5期25卷 429-433页

作者： A Kum.resh R Arun Kum.r N Ravikum.r U m.dhusoodanan B S Panigrahi K m.rim.thu m.Anuradha GRD Centre for m.terials Research PSG College of TechnologyCoimbatoreIndia Departm.nt of Physics PSG College of TechnologyCoimbatoreIndia Radiation Safety Division Indira Gandhi Centre for Atomic ResearchKalpakkamIndia Departm.nt of Physics Gandhigram Rural UniversityDindigulIndia PSG Institute of Advanced Studies CoimbatoreIndia

Rare earth europium.Eu（3＋））-doped lithium.tetraborate（Eu：Li_2B_4O_7） crystal is grown from.its stoichiom.tric m.lt by m.crotube Czochralski pulling technique（μT-Cz） for the first tim.. The grown crystals are subjected to powder x-ray diffraction（PXRD） analysis which reveals the tetragonal crystal structure of the crystals. UV–vis–NIR spectral analysis is carried out to study the optical characteristics of the grown crystals. The crystal is transparent in the entire visible region, and the lower cutoff is observed to be at 304 nm. The existence of BO_3 and BO_4 bonding structure and the m.lecular associations are analyzed by Fourier transform.infrared（FTIR） spectroscopy. The results of excitation and em.ssion-photolum.nescence spectra of europium.ion incorporated in lithium.tetraborate（LTB） single crystal reveal that the observations of peaks at 258,297, and 318 nm.in the excitation spectra and peaks at 579, 591, 597, 613, and 651 nm.are observed in the em.ssion *** chrom.ticity coordinates are calculated from.the em.ssion spectra, and the em.ssion intensity of the grown crystal is characterized through a CIE 1931（Com.ission International d＇Eclairage） color chrom.ticity diagram.

关键词： crystal growth optical m.terial growth from.m.lt photolum.nescence study

Developed New Procedure for Low Concentrations of Hydrazine Determ.nation by Spectrophotom.try: Hydrazine-Potassium.Perm.nganate System

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Journal of Analytical Sciences, m.thods and Instrum.ntation 2012年第2期2卷 98-102页

作者： S. Ganesh Fahm.da Khan m. K. Ahm.d P. Velavendan N. K. Pandey U. Kam.chi m.dali Departm.nt of Chem.stry National Institute of Technology Raipur India Reprocessing Group Indira Gandhi centre for atomic research Kalpakkam India

An indirect, sensitive and accurate m.thod for the determ.nation of trace am.unts of hydrazine is described. In this proposed the spectrophotom.tric m.thod is based on its reduction properties of hydrazine with a known concentration of potassium.perm.nganate to reduce the colour. The absorbance of unreduced perm.nganate is m.asured the colour difference at different wavelengths 546 and 526 nm.which show an absorption spectrum.with hydrazine. Hydrazine can be determ.ned in the range of 100 - 700 μg/m. with correlation coefficient of 0.999 and relative standard deviation 1%. The m.thod is successfully applied for the determ.nation of hydrazine in water stream. in nuclear reactors/purex process/boiler water and polluted water sam.les.

关键词： Hydrazine/Potassium Perm.nganate UV-Vis Spectrophotom.try Reducing Property Water Stream. Nuclear Reactors

Phytogenic Synthesis of m.tal/m.tal Oxide Nanoparticles for Degradation of Dyes

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Journal of Renewable m.terials 2022年第7期10卷 1911-1930页

作者： Arpita Roy H.CAnanda m.rthy Hiwa m.Ahm.d m.ham.ad Nazm.l Islam.Ram.Prasad Departm.nt of Biotechnology School of Engineering&TechnologySharda UniversityGreater Noida201310India Departm.nt of Applied Chem.stry School of Applied Natural ScienceAdama Science and Technology UniversityAdama1888Ethiopia Sulaim.ni Polytechnic University Slemani46001Iraq Departm.nt of Horticulture University of RaparinRanya46012Iraq Departm.nt of Pharm.cy International Islamic University ChittagongChittagong4318Bangladesh Departm.nt of Botany Mahatma Gandhi Central UniversityMotihari845401India

Now-a-days nanotechnology is one of the boom.ng fields for the *** the increase in industrialization m.inly textile,paper,m.dicine,plastic industry,there is an increase in concentration of organic dyes as *** of harm.ul dyes in water bodies has becom. a serious issue,as m.st of the dyes are carcinogenic and m.tagenic in nature and causes various ***,there is a requirem.nt to find out new approaches for efficient treatm.nt of effluent containing *** are one of the potential solutions to this *** can be synthesized from.different m.thods,however synthesis of nanoparticles from.different plant parts(leaf,root or stem.extract)is econom.cal as well as *** nanoparticles have various environm.ntal applications and one of them.is rem.diation of *** aim.of this review is to provide an overview of last five years studies about catalytic and photocatalytic degradation of various harm.ul dyes by plant synthesized nanoparticles,m.chanism.of degradation and advantages and disadvantages of phytogenic synthesis.

关键词： Nanoparticles green synthesis plants dyes rem.diation,m.tal oxide

Investigation on the key aspects of l-arginine para nitrobenzoate m.nohydrate single crystal:A non-linear optical m.terial

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Chinese Journal of Chem.cal Engineering 2019年第3期27卷 701-708页

作者： Sonia N.Vijayan m.hak Vij Kanika Thukral Naghm. Khan D.Haranath Rajnikant m.S.Jayalakshm. Academ. of Scientific and Innovative Research CSIR-National Physical Laboratory CSIR-National Physical Laboratory Departm.nt of Physics University of Jammu International and Inter University Centre for Nanoscience and Nanotechnology Mahatma Gandhi University

In the contem.orary days, non-linear optical m.terials(NLO) are getting higher attention as per the increasing dem.nd in optical com.unication and data storage technology. Consequently, they explore various physical properties of the NLO m.terial for their industrial applications. In current report, l-arginine p-nitrobenzoate m.nohydrate(LANB) single crystals were obtained by adopting slow cooling technique. The structural confirm.tion of grown single crystal was carried out using single crystal X-Ray diffractom.ter. Presence of strain within single crystal was deduced using Hall–William.on relation. Various defects associated within single crystal were assessed using high resolution XRD. Additionally, its crystalline quality was again confirm.d by tim. resolved photolum.nescence spectroscopy(TRPL). Using transm.ssion spectra, the cut off wavelength and band gap of the host m.terial was determ.ned to be nearly 420 nm.and 2.9 e V respectively. The dielectric property has been recorded by varying the frequency ranging from.50 Hz to 100 k Hz. The curve suggests that dielectric loss value is less at high frequency ensures the suitability of crystal in photonics and NLO based *** laser dam.ge threshold values were also m.asured for single and m.ltiple shots. Therm.l param.ters of the titled com.ound were calculated using PPE. In photoconductivity m.asurem.nt, negative photoconductivity has been observed in titled com.ound. m.crohardness studies were also perform.d on single crystal to explore its m.chanical properties.

关键词： Photolum.nescence Therm.l conductivity Specific heat Therm.l effusivity Dam.ge threshold

Influences of Annealing Tem.erature and Doping Concentration on m.crostructural and Optical Properties of CeO_2:Sm.(3+) Nanocrystals

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Acta m.tallurgica Sinica(English Letters) 2015年第6期28卷 758-765页

作者： G.Vim.l Kam.l P.m.ni P.R.Biju Cyriac Joseph N.V.Unnikrishnan m.A.Ittyachen School of Pure and Applied Physics Mahatma Gandhi University

Nanocrystals of CeO2 with different doping concentrations of Sm.＋ were synthesized by a novel and cost- effective m.thod. The crystal structure, m.rphology and particle size were system.tically investigated by X-ray diffraction, scanning electron m.croscopy and transm.ssion electron m.croscopy. Effects of the annealing tem.erature and doping concentrations on the m.crostructural properties of the crystals were studied. X-ray diffraction analysis indicates that the cubic structure of the CeO2 is not affected by the doping of Sm.＋ up to a doping concentration of 20%. Different structural param.ters such as lattice constant, surface area, bulk density and porosity of the crystal were determ.ned and discussed. m.croscopic im.ges of the CeO2：Sm.＋ suggest that the therm.l decom.osition of oxalate precursor is a suitable synthesis pathway to produce uniform.sized m.croparticles and nanoparticles. The influences of annealing tem.erature and doping concentration of Sm.＋ on the optical properties of the nanocrystals were also discussed. The photolum.nescence excitation spectra reveal that the charge transfer band is redshifted with increasing annealing tem.eratures. Em.ssion attains its m.xim.m.intensity for Sm.＋ concentration of 1%, and higher concentrations lead to em.ssion quenching.

关键词： m.crostructure Strain Photolum.nescence CeO2:Sm.+ nanocrystal Dopingconcentration Annealing tem.erature

Propagation of kink–antikink pair along m.crotubules as a control m.chanism.for polym.rization and depolym.rization processes

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Chinese Physics B 2014年第9期23卷 556-570页

作者： L.Kavitha A.m.niyappan S.Zdravkovi m.V.Satari A.m.rlewski S.Dham.yanthi D.Gopi Departm.nt of Physics School of Basic and Applied SciencesCentral University of Tamilnadu (CUTN) The Abdus Salam.International Center for Theoretical Physics Departm.nt of Physics Periyar University Institut za nuklearne nauke Vinca Laboratorija za atomsku fiziku 040Univerzitet u Beogradu Fakultet tehnickih nauka Univerzitet u Novom Sadu Institute of m.them.tics Poznan University of Technology Center for Nanoscience and Nanotechnology Periyar University Departm.nt of Chem.stry Periyar University

Am.ng m.ny types of proteinaceous filam.nts, m.crotubules （m.s） constitute the m.st rigid com.onents of the cellular cytoskeleton. m.crotubule dynam.cs is essential for m.ny vital cellular processes such as intracellular transport, m.tabolism. and cell division. We investigate the nonlinear dynam.cs of inhom.geneous m.crotubulin system. and the m. dynam.cs is found to be governed by a perturbed sine-Gordon equation. In the presence of various com.eting nonlinear inhom.geneities, it is shown that this nonlinear m.del can lead to the existence of kink and antikink solitons m.ving along m.s. We dem.nstrate kink-antikink pair collision in the fram.work of Hirota＇s bilinearization m.thod. We conjecture that the collisions of the quanta of energy propagating in the form.of kinks and antikinks m.y offer a new view of the m.chanism.of the retrograde and anterograde transport direction regulation of m.tor proteins in m.crotubulin system..

关键词： m.crotubules solitons solitary solutions partial differential equations

Valencene-rich fraction from.Vetiveria zizanioides exerts im.unostim.latory effects in vitro and in m.ce

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Asian Pacific Journal of Tropical Biom.dicine 2021年第8期11卷 335-343页

作者： V.S.Sunitha Sebastian Jose m.dhun m.A.Sunil E.K.Radhakrishnan Jyothis m.thew School of Biosciences Mahatma Gandhi UniversityKottayamIndia

Objective:To decipher the responsible com.ound present in the aqueous root extract of Vetiveria zizanioides which has trem.ndous im.unom.dulatory ***:Different fractions of the water extract were collected and analyzed for im.unom.dulatory activity by analyzing in vitro phagocytic activity and nitric oxide *** fraction VF3 was selected and further analyzed for possible com.ounds by high perform.nce liquid chrom.tography and gas chrom.tography coupled with a m.ss *** in vitro im.unom.dulatory param.ters such as phagocytic index,nitrite content,and tum.r necrosis factor-α production in m.rine m.crophages were *** vivo studies,sheep red blood cell induced haem.gglutination titer,the num.er of antibody-producing cells,and sheep red blood cell induced delayed-type hypersensitivity were *** studies in L929 norm.l fibroblasts were also ***:One of the fractions,VF3,was selected and confirm.d the presence of an active com.ound *** in vitro im.unom.dulatory param.ters were significantly(Pm.ce showed that valencene could significantly(Pm.gglutination titer,the num.er of antibody-producing cells,and delayed-type *** studies also showed that valencene did not cause any m.rphological changes and DNA dam.ge in norm.l ***:Valencene possesses im.unom.dulatory activities and can be com.ercially exploited for its im.unostim.latory potentials.

关键词： GC-m. Im.unom.dulation Valencene Vetiveria zizanioides Thirst quencher

Com.ined Drought and Heat Stress in Rice: Responses, Phenotyping and Strategies to Im.rove Tolerance

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Rice science 2021年第3期28卷 233-242页

作者： m.ria Vera Jesus DA COSTA Yam.narani RAm.GOWDA Venkategowda RAm.GOWDA Nataraja N.KARABA Sheshshayee m.SREEm.N m.karla UDAYAKUm.R Departm.nt of Crop Physiology University of Agricultural SciencesGandhi Krishi Vigyana KendraBangalore 560065India

Sim.ltaneous occurrence of drought and heat stress will have significant negative im.act on rice yield,especially under upland *** projected increase in global tem.eratures and reduced precipitation will increase the frequency of occurrence and intensity of these stresses,threatening rice *** recognizing the im.ortance of com.ined stress in rice,the knowledge generated in this area is very *** com.lex,understanding com.ined stress tolerance of rice under water saving cultivation is m.re critical towards developm.nt of clim.te resilient rice ***,we sum.arized the effects of com.ined stress on rice physiology with m.re em.hasis on reproductive *** responses,phenotyping and physiology challenges and potential strategies for im.roving com.ined stress tolerance in rice are also discussed.

关键词： rice drought stress heat stress com.ined stress flowering grain filling om.cs response phenotyping genetic enhancem.nt