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Growth and Characterization of Dichloro Tris(Triphenyl Phosphine Oxide)Cadmium(II) —Second Harmonic Generation from a Centrosymmetric Crystal

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Journal of Minerals and Materials Characterization and Engineering 2013年第1期1卷 20-23页

作者： K. Sreevani K. Thangaraj K. Ramamurthi S. Selvanayagam B. sridhar v. v. Anierudhe Crystal Growth and Thin Film Laboratory School of Physics Bharathidasan University Tiruchirappalli India Department of Physics K. S. R College of Engineering Tiruchengode India Department of Physics Kalasalingam University Krishnan Koil India Department of Physics Kongu Engineering College Perundurai India Laboratory of X-Ray Crystallography Indian Institute of Chemical Technology Hyderabad India vidyaa vikas Educational Institutions Tiruchengode India

The title compound dichloro tris(triphenyl phosphine oxide)cadmium(II) were grown by slow cooling method from aqueous solution. The title compound was synthesized and purified by repeated crystallization process. Grown crystals were characterized by X-ray diffraction and FTIR analysis. The range of optical transmission was determined by recording Uv-vis-NIR spectrum. Thermal properties were investigated by DTA and TGA analyses. Its mechanical hardness was estimated by vickers microhardness method.

关键词： Crystal Growth Single Crystal X-Ray Diffraction Ultraviolet Spectra Nonlinear Optical Crystals

Mechanical behavior of organo-modified Indian bentonite nanoclay fiber-reinforced plastic nanocomposites

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Frontiers of Materials Science 2013年第4期7卷 396-404页

作者： N. RAGHAvENDRA H. N. NARASIMHA MURTHY M. KRISHNA K. R. vISHNU MAHESH R. sridhar S. FIRDOSH G. ANGADI S. C. SHARMA Center for Manufacturing and Research Technology Utilization R. V. College Campus Bangalore 560059 Karnataka India Department of Mechanical Engineering R. V. College of Engineering Bangalore 560059 Karnataka India Department of Chemistry ACS College of Engineering Bangalore 560074 Karnataka India Tumkur University Tumkur 572103 Karnataka India

The aim of the research was to examine the influence of organo-modified Indian bentonite （IB） nanoclay dispersed in vinyisster on the mechanical properties of nanoclaylvinylesterlglass nanocomposRes. Nanoclay was organically modified using cationic surfactant hexadecyltrimethylammonium bromide （HDTMA-Br） by cation exchange method and dispersed in vinylester using ultrasonication and twin screw extrusion. XRD of nanoclaylvinylester revealed exfoliaUon at 4 wt.% nanoclay indicating uniform dispersion in the polymer. DSC results showed improvement in glass transition temperature by 22.3% in 4 wt.% nanoclaylvinylester/glass when compared with that of vinylester/glass. Nanoclay/vinylester/glass with 4 wt,% nanoclay showed 29.23%, 23.84% and 60.87% improvement in ultimate tensile strength （UTS）, fiexural strength （FS） and interlaminar shear strength （ILSS） respectively when compared with those of vinylester! glass. The mode of tensile failure examined by SEM showed no agglomeration of nanoclay in 4 wt.% nanoclayNinylester/glass specimens.

关键词： Indian bentonite (IB) ultrasonication twin-screw extrusion mechanical property

Breeding and biotechnological efforts in Jatropha curcas *** sustainable yields

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Oil Crop Science 2021年第4期6卷 180-191页

作者： S.Arockiasamy Jyothirmayi Kumpatla Sainath Hadole vijay Yepuri Manoj Patil vineeta Shrivastava Chandrasekhara Rao Nagesh Kancharla Saakshi Jalali Alok varshney Neeta Madan Sai Pothakani vinod Nair sridhar Peyyala vishwnadharaju Mudunuri Ananthan Gopal Niranjan S.Kumar Jawahar Pachiyannan Satyanarayana Seelamanthula J.v.Narasimham Makarand Phadke Anindya B Ajit Sapre Santanu Dasgupta Agronomy Division Reliance Technology GroupReliance Industries LtdGhansoliNavi Mumbai400701India Jatropha Breeding Station Reliance Industries LtdIDA-PeddapuramADB Road SamalkotaAndhra Pradesh533440India

Jatropha is a non-edible,important bioenergy plant,which can grow in marginalized *** seeds possess about 36%oil and this would be converted into biodiesel or *** provides an option for sustainable feed and fuel production due to its inherent qualities including hardy nature,drought tolerance and surviving with limited amount of water,tolerance to unfavorable conditions and excessive ***,heterozygosity,low productivity and poor understanding of its genome are the major impediments to elite line ***,classical breeding and advanced technological investments remain limited owing to long juvenile phase and breeding *** technologies that lead to identification of elite genotypes and development of high yielding elite Jatropha lines and effective methods of detoxification of seeds needs immediate *** tissue culture system,doubled haploids(DH)and genomic tools are increasingly made available to improve the seed yield and its oil quantity through the development of geminivirus disease resistant *** application of advanced,sequencing technologies has presented a repertoire of genomic information for this important yet orphan *** the present investigation,we highlight the achievements made in Jatropha towards development of high yielding,virus resistant elite lines and hybrids with yield potential ranging from 3 to 5 tons per hectare in a year,which is a first ever report in the *** also developed potential biotechnological tools such as genetic transformation,genome editing and next generation genomics tools including linkage maps and QTLs for accelerating breeding efforts through marker assisted *** of our concerted and continuous efforts during the past 15 years,we have overcome all the obstacles and developed high yielding,disease resistant hybrids/lines,advanced cultivation technologies with thorough knowledge on Agronomy of the Jatropha *** Jatropha cultivat

关键词： Breeding Hybrids Micropropagation Transformation Sequencing Mapping QTLs CRISPR

Mechanical, thermal and fire nanoclay/vinylester retardation behaviours of nanocomposites

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Frontiers of Materials Science 2011年第4期5卷 401-411页

作者： K. R. vISHNU MAHESH H. N. NARASIMHA MURTHY B. E. KUMARA SWAMY S. C. SHARMA R. sridhar Niranjan PATTAR M. KRISHNA B. S. SHERIGARA Department of P. G. Studies and Research in Industrial Chemistry Kuvempu University Shankaraghatta Shimoga 577451 Karnataka India Department of Mechanical Engineering R. V. College of Engineering Bangalore 560059 Karnataka India Tumkur University Tumkur 572103 Karnataka India

The dispersion of montmorillonite （MMT） in vinylester for preparing nanoclay/vinylester gel coat was reported. Two sets of MMT/vinylester specimens, namely Type I and Type 2, were prepared for comparative studies. Type I specimens were prepared using ultrasonication only, and Type 2 specimens were prepared using both ultrasonication and twin-screw extrusion. According to XRD and TEM results, Type 2 specimens showed lower levels of nanoclay agglomeration and higher levels o! exfoliation. DSC results showed that the glass transition temperatures of Type 2 specimens are higher than those of Type 1 specimens. TGA results showed that the residual weight of 4 wt.% MMT/vinylester of Type 1 was 7.38%, while the corresponding value of Type 2 was 13,5%, indicating lower thermal degradation in the latter. MMTt vinylester/glass and MMT/vinylester/carbon specimens were fabricated and tested for mechanical and fire retardation behaviours. Type 2 based nanocomposite laminates showed greater values of ultimate tensile strength, flexural strength, interlaminar shear strength, impact strength, horizontal burning rate, and vertical burning rate than Type 1 based laminates. SEM images of tensile fractured surfaces revealed that Type 2 based laminates have no or less agglomeration of nanoclay than Type 1 based laminates.

关键词： twin-screw extrusion montmorillonite nanoclay nanocomposite vinylester

Electronic Structure Tuning in Ni3FeN/r-GO Aerogel toward Bifunctional Electrocatalyst for Overall Water Splitting

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Electronic Structure Tuning in Ni3FeN/r-GO Aerogel toward Bi...

中国化学会第三届中国能源材料化学研讨会

作者：谷雨陈帅任君贾毅陈成猛 sridhar Komarneni 杨东江姚向东青岛大学中国科学院煤化研究所中北大学宾夕法尼亚州立大学格里菲斯大学昆士兰微纳米技术中心

寻找具有高活性的、稳定的和高效的双功能电催化剂来用于全解水,例如,析氧反应(OER)和析氢反应(HER),对将来的可再生能源系统和能量转换过程成为现实是至关重要的。本文三维的NiFeN纳米片/还原氧化石墨烯(r-GO)气凝胶电催化剂采用前驱体...

寻找具有高活性的、稳定的和高效的双功能电催化剂来用于全解水,例如,析氧反应(OER)和析氢反应(HER),对将来的可再生能源系统和能量转换过程成为现实是至关重要的。本文三维的NiFeN纳米片/还原氧化石墨烯(r-GO)气凝胶电催化剂采用前驱体(Ni,Fe)/r-GO海藻酸盐水凝胶离子交换法制备得到的,然后在700℃下在NH中简单地一步氮化处理。所得材料在碱性介质中对OER和HER具有优异的电催化性能,在电流密度为10 mA cm时,只有270 mv和94 mv的过电位。其良好的性能归因于丰富的活性位点和高导电性的双金属氮化物和有效的质子传输的三维r-GO气凝胶框架。此外,使用NiFeN/r-GO同时作为阴极和阳极,建立了碱性电解槽,在1.60 v下达到10 mA cm电流密度,整个全解水的过程持续100 h。密度泛函理论计算表明,NiFe(111)/r-GO更利于水的整体分裂,因为Ni3Fe的表面电子结构通过两个金属物种的相互作用将NiFe团簇的电子转移到r-GO来调节。因此,目前开发的具有优异全解水性能的NiFe/r-GO可作为工业碱性水电解槽的材料。

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干眼症(英文)

国际眼科杂志 2002年第1期2卷 4-13页

作者： M.S.sridhar 印度海得拉巴市L.v.Prasad眼科研究所

干眼症是一种常见眼表疾病,病人至诉有干涩感、畏光烧灼感、视物模糊、视力波动、不适感、异物感和易视疲劳等症状。以下临床检查有助于诊断:泪膜破裂时间,泪液分泌实验和诊断染色(荧光素和虎红染色),很多多实验室检查都有助于诊断,但... 详细信息

干眼症是一种常见眼表疾病,病人至诉有干涩感、畏光烧灼感、视物模糊、视力波动、不适感、异物感和易视疲劳等症状。以下临床检查有助于诊断:泪膜破裂时间,泪液分泌实验和诊断染色(荧光素和虎红染色),很多多实验室检查都有助于诊断,但由于仪器不足及费用过高,临床上并不常采用。现今的治疗有泪液成分的替代治疗及保留泪液,但并不治本,而只是缓解症状。用人工泪液和润滑剂替代泪液以提高表面湿度,增加润滑度及提高视锐度是目前应用最广的疗法。大多数制剂含防腐剂和表面毒性,长期使用,会导致并发症。采用防腐性自由泪液是过去10年促进泪液替代的最重要方法。泪小点封闭术是保留泪液最有效最实用的疗法,由胶、特氟隆和HEMA制作的泪小点栓子植入垂直小管或水平小管。因为泪小点栓子会游移及导致潜伏性并发症,此法只用于持须注入人工泪液临床改善不明显的病人。经常用口服制剂来促进泪液分泌,但因其潜在副作用,而且一旦腺体被广泛破坏,刺激也产生不了很多泪液。红肿腺体的刺激会在表面释放炎症的泪液,使病情恶化,慢性免疫介导的炎症过程是导致干眼症发生的主要因素。局部环孢菌素A和局部用甲强龙有一定疗效。性激素与泪液产生的关系复杂,全身性雌激素疗法对干眼症病人有益。局部维生素A对伴有磷状组织变形和

关键词：幹眼诊断处理

Synthesis and characterization of organomodified Na-MMT using cation and anion surfactants

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中国化学前沿:英文版 2011年第2期6卷 153-158页

作者： K.R.vishnu MAHESH H.N.Narasimha MURTHY B.E.KUMARASWAMY N.RAGHAvENDRA R.sridhar M.KRISHNA Niranjan PATTAR Ratna PAL B.S.Sherigara Department of P.G Studies and Research in Industrial Chemistry Kuvempu UniversityShankaraghattaShimoga 577451India Department of Mechanical Engineering R V College of EngineeringBangalore 560059India

The Sodium Montmorillonite(Na-MMT)is not susceptible to polymer due to its organophilic character and low basal *** primary objective of this study was to improve Na-MMT platelets separation by organically modifying it with cation and anion exchanges using Cetyl trimethyl ammonium bromide(CTAB)and Sodium dodecyl sulfate(SDS)*** spacing,presence of functional groups,Zetapotential with particle size analysis and thermal stability of the Organomodified Na-MMT(OMMT)were characterized using XRD,FTIR,zeta-potential analyzer and TGA *** basal spacing of CTAB modified OMMTincreased to 19.5Åfrom 11.0Åwhich corresponds to the basal spacing of *** SDS modified OMMT did not show any increase in the basal *** spectra of CTAB modified Na-MMT illustrated the attachment of CTAB functional groups to Na-MMT,while the same was absent in the case of SDS modified *** zeta-potential of Na-MMT shifted from–24.88 mv to 15.66 mv in the case of CTAB modified Na-MMTand 12.49 mv for SDS modified Na-MMT,indicating a greater surface potential of the modified *** TGA showed greater weight loss for CTAB modified Na-MMT than that for Na-MMT,indicating the effective Na+ion exchange with alkyl amines.

关键词： Na-MMT CTAB SDS XRD FTIR zetapotential

前房内注射全氟丙烷(C_3F_8)气体治疗急性角膜水肿

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世界核心医学期刊文摘（眼科学分册） 2005年第7期1卷 18-19页

作者： Shah S.G. sridhar M.S. Sangwan v.S. 潘佳鸿 Cornea and Anterior Segment Service L.V. Prasad Eye Institute L.V. Prasad Marg Hyderabad500034 India

Purpose: To report a case of acute hydrops with intrastromal cleft in a patient of keratoconus with associated Marfan’ s syndrome, treated with intracameral injection of perfluoropropane (C3F8) gas. Design: Interventional case report. Methods: A nonexpansile concentration of perfluoropropane gas (0.2 ml)- was injected intracamerally in the operating room under aseptic precautions. Results: There was complete and rapid resolution of corneal edema. Conclusion: Intracameral perfluoropropane gas in nonexpansile concentrationmay be a useful modality for treatment of corneal edema in acute corneal hydrops.

关键词：前房内注射 C3F8 全氟丙烷角膜水肿基质层圆锥角膜干预性膨胀性无菌操作

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不同外加剂对OGFC混合料路用性能的影响

中外公路 2013年第3期33卷 251-256页

作者：罗要飞张苛李志宏罗资军长安大学陕西西安710064

OGFC为开级配沥青混合料,主要由粗集料嵌挤组成,在世界各地越来越广泛地用于铺筑路面。OGFC混合料可以增大路表面渗透性,减少噪音,增强表面摩擦力,尤其是在潮湿条件下。该文主要研究不同外加剂对OGFC路用性能的影响,其混合料分别由再生... 详细信息

OGFC为开级配沥青混合料,主要由粗集料嵌挤组成,在世界各地越来越广泛地用于铺筑路面。OGFC混合料可以增大路表面渗透性,减少噪音,增强表面摩擦力,尤其是在潮湿条件下。该文主要研究不同外加剂对OGFC路用性能的影响,其混合料分别由再生聚乙烯改性沥青(RPEB)、橡胶粉改性沥青(CRMB)和70#基质沥青+纤维与矿料拌和而成。并分别采用析漏试验、肯塔堡飞散试验、渗水试验、劈裂试验、静态模量试验,车辙试验和抗滑试验评估OGFC混合料的路用性能。结果表明:纤维和聚合物可以有效地减小OGFC离析的可能性,混合料每面击实50次能相应地提高磨耗性和其他相关的性能。改性沥青混合料的抗拉强度比(TSR)低于纤维+基质沥青混合料的抗拉强度比。

关键词：劈裂强度橡胶粉植物纤维 OGFC混合料