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rice science 2016年第3期23卷 144-151页

作者： S.K. Hajira r.m. sundaram G.S.Laha A.Yugander S.m.Balachandran B.C.Viraktamath K.Sujatha C.H.Balachiranjeevi K.Pranath m.Amla S.Bhaskar V.Abhilash H.K.mahadevaswamy m.Kousik T.DilipKumar G.Harika G.rekha ICAr-Indian Institute of rice research Rajendranagar Hyderabad 500030 India

In marker-assisted breeding for bacterial blight(BB) resistance in rice, three major resistance genes, viz., Xa21, xa13 and xa5, are routinely deployed either singly or in combinations. As efficient and functional markers are yet to be developed for xa13 and xa5, we have developed simple PCr-based functional markers for both the genes. For xa13, we designed a functional PCr-based marker, xa13-pr.m.targeting the In Del polymorphism in the pr.m.ter of candidate gene Os8N3 located on chr.m.some 8 of rice. With respect to xa5, a multiplex-PCr based functional marker system, named xa5 Fm, consisting of two sets of pr.m.r pairs targeting the 2-bp functional nucleotide polymorphism in the exon II of the gene TFIIA5(candidate for xa5), has been developed. Both xa13-pr.m.and xa5 Fm can differentiate the resistant and susceptible alleles for xa13 and xa5, respectively, in a co-dominant fashion. Using these two functional markers along with the already reported functional PCr-based marker for Xa21(p TA248), we designed a single-tube multiplex PCr based assay for simultaneous detection of all the three major resistance genes and demonstrated the utility of the multiplex marker system in a segregating population.

关键词： rice bacterial blight resistance xa5 xa13 Xa21 functional marker multiplex PCr

Exper.m.ntal Studies on the Thermal Performance of a Parabolic Dish Solar receiver with the Heat Transfer Fluids SiC+ Water Nano Fluid and Water

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Journal of Thermal Science 2017年第3期26卷 263-272页

作者： D.r.rajendran E.Ganapathy sundaram P.Jawahar Depar.m.nt of mechanical Engineering Adhiparasakthi Engineering CollegeMelmaruvahur-603319Tamil NaduIndia Depar.m.nt of mechanical Engineering Velammal Engineering CollegeChermai-600066Tamil NaduIndia Depar.m.nt of Production Engineering Velammal Engineering CollegeChennai-600066Tamil NaduIndia

An exper.m.ntal investigation has been carried out with aa point focusing dish reflector of 12 square meters aperture area, exposed to the average direct normal irradiations of 810 W/m^2. This work focuses on enhancinge the energy and exergy efficiencies of the cavity receiver by minimizing the temperature difference between the wall and heat transfer fluids. Two heat transfer fluids Water and SiC + water nano fluid have been prepared fr.m.50 nm particle size and 1% of volume fraction, and exper.m.nted separately for the flow rates of 0.2 lpm to 0.6 lpm with an interval of 0.1 lpm. The enhanced thermal conductivity of nano fluid is 0.800115 W/mK with the k_(eff)/k_b ratio of 1.1759 determined by using the Koo and Kleinstreuer correlation. The maximum attained energy and exergy efficiencies are 29.14% and 24.82% for water, and 32.91% and 39.83% for SiC+water nano fluid. The nano fluid exhibits enhanced energy and exergy efficiency of 12.94% and 60.48% than that of water at the flow rate of 0.5 lpm. The result shows that the system with SiC+Water produces higher exergy efficiency as compared to energy efficiency; in the case of water alone, the energy efficiency is higher than exergy efficiency.

关键词： Direct Normal Irradiation cavity receiver heat transfer fluids nano fluid exergy factor

Liquid vaporization under thermodynamic phase non-equilibrium condition at the gas-liquid interface

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Science China(Technological Sciences) 2020年第12期63卷 2649-2656页

作者： WANG XingJian LAFON Patrick sundaram Dilip YANG Vigor Depar.m.nt of mechanical and Civil Engineering Florida Institute of TechnologyMelbourneFlorida 32901USA Depar.m.nt of mechanical and Nuclear Engineering The Pennsylvania State UniversityUniversity ParkPA 16802USA School of Aerospace Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

Liquid vaporization under thermodynamic phase non-equilibrium condition at the gas-liquid interface is investigated over a wide range of fluid state typical of many liquid-fueled energy conversion systems. The validity of the phase-equilibrium assumption commonly used in the existing study of liquid vaporization is examined using molecular dynamics theories. The interfacial mass flow rates on both sides of the liquid surface are compared to the net vaporization rate through an order-of-magnitude *** indicated that the phase-equilibrium assumption holds valid at relatively high pressures and low temperatures,and for droplets with relatively large initial diameters(for example,larger than 10 μm for vaporizing oxygen droplets in gaseous hydrogen in the pressure range fr.m.10 atm to the oxygen critical state). Droplet vaporization under superheated conditions is also explored using classical binary homogeneous nucleation theory,in conjunction with a real-fluid equation of state. It is found that the bubble nucleation rate is very sensitive to changes in saturation ratio and pressure;it increases by several orders of magnitude when either the saturation ratio or the pressure is slightly increased. The kinetic limit of saturation ratio decreases with increasing pressure,leading to reduced difference between saturation and superheat conditions. As a result,the influence of nonequilibrium conditions on droplet vaporization is lower at a higher pressure.

关键词： liquid vaporization droplet vaporization superheated vaporization thermodynamic phase equilibrium thermodynamic phase non-equilibrium vapor nucleation

Creation of Super Long Transversely Polarized Optical Needle Using Azimuthally Polarized multi Gaussian Beam

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Chinese Physics Letters 2016年第6期33卷 29-32页

作者： C.m.sundaram K.Prabakaran P.m.Anbarasan K.B.rajesh A.m.musthafa Depar.m.nt of Physics Periyar University Depar.m.nt of Physics Mahendra Arts and Science College(Autonomous) Depar.m.nt of Physics Chikkanna Government Arts College Depar.m.nt of General Studies(Physics Group) Jubail University College(Male Branch)Royal Commission of Jubail

The intensity distribution in the focal region of a high-NA lens for the incident azimuthally polarized multi Gaussian beam transmitted through a multi belt spiral phase hologr.m.is studied on the basis of the vector diffraction theory. Here we report a new method used to generate a needle of transversely polarized light beam with sub diffraction beam size of 0.366A that propagates without divergence over a long distance of about 22A in free space. We also expect that such a light needle of transversely polarized beam may find its applications in utilizing optical materials or instr.m.nts responsive to the transversal field only.

关键词： of on it for Creation of Super Long Transversely Polarized Optical Needle Using Azimuthally Polarized multi Gaussian Beam in that is

Genetic Improvement of rice for Bacterial Blight resistance:Present Status and Future Prospects

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rice science 2022年第2期29卷 118-132页

作者： r.ABDUL FIYAZ D.SHIVANI K.CHAITHANYA K.mOUNIKA m.CHIrANJEEVI G.S.LAHA B.C.VIrAKTAmATH L.V.SUBBA rAO r.m.sundaram ICAr-Indian Institute of rice research RajendranagarHyderabad 500030India Professor Jayashankar Telangana State Agricultural University RajendranagarHyderabad 500030India

The production and productivity of rice has been challenged due to biotic and abiotic *** blight(BB)disease,caused by Xanthomonas oryzae ***,is one of the important biotic stress factors,which reduces rice production by 20%-50%.The deployment of host plant resistance is the most preferred strategy for.m.nagement of BB disease,and breeding disease resistant varieties r.m.ins a very economical and effective ***,it is difficult to develop rice varieties with durable broad-spectr.m.resistance against BB using conventional approaches *** biotechnological tools,particularly the deployment of molecular.m.rkers,have facilitated the cloning,characterization and introgression of BB resistance genes into elite *** least 46 BB resistance genes have been identified and mapped fr.m.diverse sources till *** these,11 genes have been cloned and ***-assisted breeding r.m.ins the most efficient approach to improve BB resistance by introducing two or.m.re resistance genes into target *** the identified genes,xa5,xa13 and Xa21 are being widely used in marker-assisted breeding and more than 70 rice varieties or hybrid rice parental lines have been improved for their BB resistance alone or in combination with genes/QTLs conferring tolerance to other *** review the developments related to identification and utilization of various resistance genes to develop BB resistant rice varieties through marker-assisted breeding.

关键词： rice bacterial blight resistance gene marker-assisted breeding gene pyr.m.ding

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水环境中rH-5992液相色谱分析

环境科学 1996年第5期17卷 62-64,71页

作者：朱九生 K.m.S.sundaram r.Nott 山西省农科院植物保护研究所太原030031 加拿大林业部森林害虫治理研究所

为评价rH-5992在环境中的分布与结局,介绍了一种该化合物在湖水、淤泥、鱼、宽叶香蒲草和驴蹄草中的残留量分析方法.分析过程包括溶剂的提取、液液分配、柱层析净化和液相色谱分析.分析物采用二极管阵列式(diode-array)紫外检测器进行检... 详细信息

为评价rH-5992在环境中的分布与结局,介绍了一种该化合物在湖水、淤泥、鱼、宽叶香蒲草和驴蹄草中的残留量分析方法.分析过程包括溶剂的提取、液液分配、柱层析净化和液相色谱分析.分析物采用二极管阵列式(diode-array)紫外检测器进行检测,柱型为rP-8,流动相为乙腈、二氧六环和水.方法平均回收率为85%—98%,变异系数为6%—9%,最低检出浓度除湖水为0.050 μg/L外,其它几种样品为0.009—0.028 mg/kg。

关键词： rH-5992 水环境残留分析高效液相色谱

mussel-inspired sulfated hyaluronan cryogel patch with antioxidant, anti-inflammatory, and drug-loading properties for.m.ltifunctional wound adhesives

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Bioactive materials 2024年第10期40卷 582-596页

作者： Wonmoon Song Young Hwan Choi Young Gi moon Changyub Lee m.Nivedhitha sundaram Nathaniel S.Hwang School of Chemical and Biological Engineering Institute for Chemical ProcessesSeoul National UniversitySeoul08826Republic of Korea Interdisciplinary Progr.m.in Bioengineering Seoul National UniversitySeoul08826Republic of Korea Bio-mAX/N-Bio Institute Institute of BioEngineeringSeoul National UniversitySeoul08826Republic of Korea Division of Pediatric Cardiac Surgery Department of SurgeryJohns Hopkins School of MedicineBaltimoreMDUSA Institute of Engineering research Seoul National UniversitySeoul08826Republic of Korea

Wounds, characterized by the disruption of the continuity of body tissues resulting fr.m.external trauma,manifest in diverse types and locations. Although numerous wound dressings are available for various woundscenarios, it r.m.ins challenging to find an integrative wound dressing capable of addressing diverse woundsituations. We focused on utilizing sulfated hyaluronan (sHA), known for its anti-inflammatory properties andcapacity to load cationic drugs. By conjugating catechol groups to sHA (sHA-CA), we achieved several advantagesin wound healing: 1) Fabrication of patches through crosslinking with catechol-modified high-molecularweighthyaluronan (HA(HmW)-CA), 2) Adhesiveness that enabled stable localization, 3) radical scavenging thatcould synergize with the immunomodulation of sHA. The sHA-CA patches demonstrated therapeutic efficacy inthree distinct murine wound models: diabetic wound, hepatic hemorrhage, and post-surgical adhesion. Collectively,these findings underscore the potential of the sHA-CA patch as a pr.m.sing candidate for the nextgenerationwound dressing.

关键词： Adhesive patch Anti-inflammation Sulfated hyaluronic acid Post-surgical adhesion Diabetic wound Hemostasis

marker-Assisted Pyr.m.ding of Genes Conferring resistanceAgainst Bacterial Blight and Blast Diseases into Indian riceVariety mTU1010

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rice science 2016年第6期23卷 306-316页

作者： k.arunakumari c.v.durgarani v.satturu k.r.sarikonda p.d.r.chittoor b.vutukuri g.s.laha a.p.k.nelli s.gattu m.jamal a.prasadbabu s.hajira r.m.sundaram Institute of Biotechnology Professor Jayashankar Telangana State Agricultural UniversityRajendranagarHyderabad 500030India Andhra Pradesh rice research Institute Acharya N.G.Ranga Agricultural UniversityMaruteruWest Godavari District 534122India Agriculture research Station Acharya N.G.Ranga Agricultural UniversityNellore 524004India Crop Improvement Section ICAR-Indian Institute of Rice ResearchRajendranagarHyderabad 500030India Urmatt Ltd.Wang Chai Chaingrai 57210Thailand

Two major bacterial blight （BB） resistance genes （Xa21 and xa13） and a major gene for blastresistance （Pi54） were introgressed into an Indian rice variety mTU1010 through marker-assistedbackcross breeding. Improved Samba mahsuri （possessing Xa21 and xa13） and NLr145 （possessingPi54） were used as donor parents. marker-assisted backcrossing was continued till BC2 generationwherein PCr based functional markers specific for the resistance genes were used for foregroundselection and a set of parental polymorphic microsatellite markers were used for background selectionat each stage of backcrossing. Selected BC2F1 plants fr.m.both crosses, having the highest recoveriesof mTU1010 genome （90% and 92%, respectively）, were intercrossed to obtain intercross F1 （ICF1） plants,which were then selfed to generate 880 ICF2 plants possessing different combinations of the BB andblast resistance genes. Among the ICF2 plants, seven triple homozygous plants （xa13xa13Xa21Xa21Pi54Pi54）with recurrent parent genome recovery ranging fr.m.82% to 92% were identified. All the seven ICF2plants showed high resistance against the bacterial blight disease with a lesion lengths of only 0.53–2.28 cm, 1%–5% disease leaf areas and disease scoring values of ‘1’ or ‘3’. The seven ICF2 plants wereselfed to generate ICF3, which were then screened for blast resistance, and all were observed to behighly resistant to the diseases. Several ICF3 lines possessing high level of resistance against BB andblast, coupled with yield, grain quality and plant type on par with mTU1010 were identified and advanced forfurther selection and evaluation.

关键词： gene pyr.m.ding bacterial blight resistance blast resistance rice marker-assistedbackcross breeding

Protective effect of Prostane in exper.m.ntal prostatic hyperplasia in rats

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Asian Journal of Andrology 1999年第4期1卷 175-179页

作者： S.K.mitra r.sundaram A.r.m.han S.Gopumadhavan m.V.Venkataranganna Udupa Venkatesha S.J.Seshadri S.D.Autrulikar r&D Centre The Himalaya Drug Co. Makali Banalore 562-123 IndiaR&D Centre The Himalaya Drug Co. Makali Banalore 562-123 IndiaR&D Centre The Himalaya Drug Co. Makali Banalore 562-123 IndiaR&D Centre The Himalaya Drug Co. Makali Banalore 562-123 IndiaR&D Centre The Himalaya Drug Co. Makali Banalore 562-123 IndiaR&D Centre The Himalaya Drug Co. Makali Banalore 562-123 IndiaR&D Centre The Himalaya Drug Co. Makali Banalore 562-123 IndiaR&D Centre The Himalaya Drug Co. Makali Banalore 562-123 India

Aim: Prostane, a polyherbal formulation, was evaluated for its efficacy on 5α-reductase inhibition, α-adrenergic anta-gonistic activity and testosterone-induced prostatic hyperplasia. methods: 5α-reductase inhibition was evaluated usingrat prostate homogenate as an enzyme source. Adrenergic antagonistic activity was evaluated using isolated rat vas def-erens. Exper.m.ntal prostatic hyperplasia was induced in rats by giving testosterone 3 rog/kg sc for 21 days. re-sults: Prostane dose-dependently inhibited 5α-reductase activity and exhibited α-adrenergic antagonistic activity. Treat-ment with Prostane at 250, 500 and 750 mg/kg body wt, po for 21 days significantly reduced the prostatic weight, theepithelial height and the str.m.l proliferation in exper.m.ntal prostatic hypertrophy. Conclusion: Prostane is effectivein the treatment of exper.m.ntal prostatic hypertrophy in rats and may be passed on to clinical trials on benign prostatichypertrophy after necessary toxicological evaluations. (Asian J Androl 1999 Dec; 1: 175-179)

关键词： Prostane BPH oxidoreductases adrenergic alpha-antagonists enzyme inhibitors prostate hyperplasia

Structure and magnetic properties of Cu-Ni alloy nanoparticles prepared by rapid microwave combustion method

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Transactions of Nonferrous metals Society of China 2014年第5期24卷 1467-1473页

作者： J.ArUL mArY A.mANIKANDAN L.JOHN KENNEDY m.BOUOUDINA r.sundaram J.JUDITH VIJAYA Catalysis and Nanomaterials research Laboratory Department of Chemistry Loyola College materials Division School of Advanced Sciences Vellore Institute of Technology (VIT) UniversityChennai Campus Depar.m.nt of Physics College of Science University of Bahrain Nanotechnology Centre University of Bahrain Depar.m.nt of Chemistry Presidency College

Cu-Ni alloy nanoparticles were prepared by a microwave combustion method with the molar ratios of CU2＋ to Ni2＋ as 3：7, 4：6, 5：5, 6：4 and 7：3. The as-prepared samples were characterized by XrD, Hr-SEm, EDX and VSm. XrD and EDX analyses suggest the formation of pure alloy powders. The average crystallite sizes were found to be in the range of 21.56-33.25 nm. Hr-SEm images show the clustered/agglomerated particle-like morphology structure. VSm results reveal that for low Ni content （CusNis, Cu6Ni4 and Cu7Ni3）, the system shows par.m.gnetic behaviors, whereas for high Ni content （Cu3Ni7 and Cu4Ni6）, it becomes ferr.m.gnetic.

关键词： microwave combustion nanoparticles Cu-Ni alloys magnetization property