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印度新记录——蛞蝓叶蜂属并记一新种(膜翅目:叶蜂科:小黑叶蜂亚科)(英文)

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Entomotaxonomia 1998年第4期20卷 285-290页

作者： v.vasu 旁遮普大学动物学系

蛞蝓叶蜂属全世界共有３４种，大多数种类是果树害虫，特别是蔷薇科果树害虫。蛞蝓叶蜂属ＣａｌｉｒｏａＣｏｓｔａ及光颜蛞蝓叶蜂Ｃ．ｇｌａｂｒｉｆｒｏｎｓＭａｌａｉｓｅ均系印度首次记录。本文还记述该属１新种：东印蛞蝓叶蜂Ｃ．... 详细信息

蛞蝓叶蜂属全世界共有３４种，大多数种类是果树害虫，特别是蔷薇科果树害虫。蛞蝓叶蜂属ＣａｌｉｒｏａＣｏｓｔａ及光颜蛞蝓叶蜂Ｃ．ｇｌａｂｒｉｆｒｏｎｓＭａｌａｉｓｅ均系印度首次记录。本文还记述该属１新种：东印蛞蝓叶蜂Ｃ．ｆｅｒｉＶａｓｕ，提供了该属东洋区种类检索表。文中蛞蝓叶蜂属的特征引自Ｓｍｉｔｈ（１９７１）。文中对印度新记录种光颜蛞蝓叶蜂Ｃ．ｇｌａｂｒｉｆｒｏｎｓ作了重新描述，并补充了部分特征图。新种东印蛞蝓叶蜂Ｃ．ｆｅｒｉ的模式标本保存在印度农业研究所普萨标本馆昆虫部（印度、新德里）。１．光颜蛞蝓叶蜂ＣａｌｉｒｏａｇｌａｂｒｉｆｒｏｎｓＭａｌａｉｓｅ，印度新记录（图１，３，５，７，９，１１）ＣａｌｉｒｏａｇｌａｂｒｉｆｒｏｎｓＭａｌａｉｓｅ，１９６１：２４１本种在印度首次记载，所有研究标本与Ｍａｌａｉｓｅ（１９６１）的记述完全一致。本种具有下述特征：体色呈鲜绿色，足漆黑色，触角第３节和第４节近相等，尾须不达产卵鞘后端；唇基三角形凹入，后足基跗节明显长于其后３节之和。这些特征使其明显有别于属内其它种。检视标本：１♀，ＵｔａｒＰｒａｄｅｓｈ，Ｍａｎｄａｌ（２３００ｍ），１９８７－ＶＩ－１９，Ｍ．Ｓ．Ｓａｉｎｉ?

关键词：膜翅目叶蜂科蛞蝓叶蜂属新记录新种印度

印度科叶蜂属一新种(膜翅目:叶蜂科:蔺叶蜂亚科)(英文)

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Entomotaxonomia 1999年第1期21卷 69-73页

作者： v.vasu 旁遮普大学动物学系

Ｍａｌａｉｓｅ１９３７年根据两个新种建立了科叶蜂属Ｃｏｒｐｉｌｕｓ，即：Ｃ．ｎｉｇｅｒｉｍｕｓ和Ｃ．ｄａｖｉｄｉ。前者是该属的模式种，由Ｍａｌａｉｓｅ采自印度阿萨姆（即现在的梅加拉亚邦），后者采自中国。文中讨论了属的... 详细信息

Ｍａｌａｉｓｅ１９３７年根据两个新种建立了科叶蜂属Ｃｏｒｐｉｌｕｓ，即：Ｃ．ｎｉｇｅｒｉｍｕｓ和Ｃ．ｄａｖｉｄｉ。前者是该属的模式种，由Ｍａｌａｉｓｅ采自印度阿萨姆（即现在的梅加拉亚邦），后者采自中国。文中讨论了属的分类特征，修订了属的鉴别特征，编制了该属东洋区种类分种检索表。本文记述采自北方邦高地的１个新种，模式标本保存在印度新德里印度农业研究所普萨标本馆昆虫部。１．萨尼科叶蜂ＣｏｒｐｉｌｕｓｓａｉｎｉＶａｓｕ，新种（图１）萨尼科叶蜂唇基上区具钝脊；中窝特征典型；眼后区宽大于长；侧沟深且分歧；外生殖器典型。它与近似种Ｃ．ｎｉｇｅｒｒｉｍｕｓ的区别主要在于：眼后区宽大于长，宽∶长＝４∶３（Ｃ．ｎｉｇｅｒｒｉｍｕｓ为３∶１），爪具１枚亚端突，亚端突短于爪端长度（Ｃ．ｎｉｇｅｒｉｍｕｓ亚端突比爪端长），头部具细微刻点（Ｃ．ｎｉｇｅｒｉｍｕｓ不具刻点），唇基下缘略凹入（Ｃ．ｎｉｇｅｒｉｍｕｓ横截）。正模：♀，北方邦（Ｍｕｋｔｅｓｈｗｅｒ），２７００ｍ，１９８９－Ⅸ－１０，Ｓ．Ｓａｉｎｉ采；副模２♀♀，５♂♂，地点同正模，１９９１－Ⅸ－２０，Ｖ．Ｖａｓｕ采。词源：新种以导师旁遮普大学动物学系Ｍ．Ｓ．Ｓａｉｎｉ博士的?

关键词：膜翅目叶蜂科科叶蜂属新种印度

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7xxx铝合金的应力腐蚀行为综述（英文）

Transactions of Nonferrous Metals Society of China 2016年第6期26卷 1447-1471页

作者： A.C.UMAMAHESHWER RAO v.vasu M.GOvINDARAJU K.v.SAI SRINADH Department of Mechanical Engineering National Institute of Technology WarangalWarangal 506004India Nonferrous Materials Technology Development Centre Hyderabad-500058500005India

应力腐蚀是材料在应力和腐蚀环境双重作用下使材料力学性能下降的行为。对于八种系列铝合金,2xxx、5xxx、7xxx铝合金对于应力腐蚀敏感。由于其优越的力学性能,7xxx铝合金广泛应用于航空、军事和结构工业。在这些7xxx铝合金中,应力腐蚀... 详细信息

应力腐蚀是材料在应力和腐蚀环境双重作用下使材料力学性能下降的行为。对于八种系列铝合金,2xxx、5xxx、7xxx铝合金对于应力腐蚀敏感。由于其优越的力学性能,7xxx铝合金广泛应用于航空、军事和结构工业。在这些7xxx铝合金中,应力腐蚀严重影响其力学性能,使其在服役过程中发生灾难性的失效。因此,研究该合金的应力腐蚀行为具有重要意义。本文综述了合金成分对合金在不同热处理条件下的显微组织演变,还综述了改善7xxx合金应力腐蚀性能的形变热处理和表面改性方法。此外,还综述了应力、预应变、合金成分和腐蚀环境对应力腐蚀行为的影响。还综述了焊缝、7xxx金属基复合材料和激光表面处理合金的应力腐蚀行为。

关键词： 7xxx铝合金应力腐蚀热处理显微组织腐蚀环境形变热处理

Evaluation of influence of cold atmospheric pressure argon plasma operating parameters on degradation of aqueous solution of Reactive Blue 198(RB-198)

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Plasma Science and Technology 2020年第5期22卷 114-125页

作者： K NAvANEETHA PANDIYARAJ D vasu P v A PADMANABHAN M PICHUMANI R R DESHMUKH v KANDAvELU Research Division of Plasma Processing(RDPP) Department of PhysicsSri Shakthi Institute of Engineering and TechnologyChinniyam Palayam(post)Coimbatore-641062India Department of Nanoscience and Technology Sri Ramakrishna Engineering CollegeCoimbatore-641022India Department of Physics Institute of Chemical TechnologyMatungaMumbai 400019India Department of Chemistry Sri Shakthi Institute of Engineering and TechnologyL&T bypassChinniyam Palayam(post)Coimbatore-641062India

The intention of this work is to remove Reactive Blue 198(RB-198)dye components from simulated water solution using cold atmospheric pressure argon plasma *** solutions of RB-198 dye were treated as a function of various operating parameters such as applied potential,reaction time and distance between the plasma jet and surface of the *** efficiency of the degradation of RB-198 molecules was explored by means of Uv-vis *** reactive species involved during the treatment process were examined by optical emission spectra(OES).The present hydroxyl radicals(OH·radical)and hydrogen peroxide(H2O2)in the plasma-treated aqueous dye solutions were investigated using various spectroscopic *** other parameters such as total organic carbon(TOC),conductivity and p H were also *** toxicity of plasma-treated RB-198 solution was finally studied by diffusion bacterial analysis and by tracking seed germination *** results show that a higher degradation percentage of99.27%was acquired for the RB-198 treated at higher reaction time and applied potential,and shorter distance between the plasma jet and water *** may be due to the formation of various reactive oxygen(OH·radical,atomic oxygen(O)and H2O2)and nitrogen species(nitric oxide(NO)radicals and N2 second positive system(N2 SPS))during the processes as confirmed by OES analysis and other spectroscopy ***(17.7%-81.8%)and pH(7.5-3.4)values of the plasma-treated RB-198 decreased significantly with respect to various operation parameters,which indicates the decomposition of RB-198 molecules in the aqueous ***,the conductivity of plasma-treated RB-198 aqueous solutions was found to have increased linearly during the plasma treatment due to the formation of various ionic species in aqueous *** toxicity analysis clearly exhibits the non-toxic behavior of plasma-treated RB-198 aqueous solution towards the bacterial growth and germination of see

关键词： RB-198 degradation non-toxicity cold atmospheric pressure plasma jet

Effect of fusion welding processes on tensile properties of armor grade, high thickness, non-heat treatable aluminium alloy joints

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Defence Technology（防务技术） 2019年第3期15卷 353-362页

作者： K. vasu H. Chelladurai Addanki Ramaswamy S. Malarvizhi v. Balasubramanian Department of Mechanical Engineering PDPM Indian Institute of Information Technology Design and Manufacturing Jabalpur Madhya pradesh 482005 India Centre for Materials Joining & Research (CEMAJOR) Department of Manufacturing Engineering Annamalai University Annamalai Nagar -(P.O) Tamil nadu 608002 India

AA5059 is one of the high strength armor grade aluminium alloy that finds its applications in the military vehicles due to the higher resistance against the armor piercing (AP) threats. This study aimed at finding the best suitable process among the fusion welding processes such as gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW) by evaluating the tensile properties of AA5059 aluminium alloy joints. The fracture path was identified by mapping the low hardness distribution profile (LHDP) across the weld cross section under tensile loading. Optical and scanning electron microscopies were used to characterize the microstructural features of the welded joints at various zones. It is evident from the results that GTAW joints showed superior tensile properties compared to GMAW joints and this is primarily owing to the presence of finer grains in the weld metal zone (WMZ) and narrow heat-affected zone (HAZ). The lower heat input associated with the GTAW process effectively reduced the size of the WMZ and HAZ compared to GMAW process. Lower heat input of GTAW process results in faster cooling rate which hinders the grain growth and reduces the evaporation of magnesium in weld metal compared to GMAW joints. The fracture surface of GTAW joint consists of more dimples than GMAW joints which is an indication that the GTAW joint possess improved ductility than GMAW joint.

关键词： Gas tungsten arc welding Gas metal arc welding Armor grade aluminium alloy Tensile properties Microhardness

Endoscopic ear surgery in middle ear cholesteatoma

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Laparoscopic, Endoscopic and Robotic Surgery 2021年第1期4卷 24-29页

作者： Satish Nair J.G.Aishwarya Nagamani Warrier v Pavithra Aditya Jain Mehrin Shamim Krishna Ramanathan Pooja K.vasu Department of ENT-HNS Apollo HospitalsBangaloreKarnatakaIndia

Objective:Endoscope has been used as diagnostic tool for recidivism and as an adjunct to microscopic technique in the management of *** present transcanal endoscopic ear surgery(TEES)is being used as a minimally invasive alternative for microscopic *** aim to evaluate the feasibility,structural,functional and quality of life outcomes of endoscopic technique in middle ear ***:This prospective study was conducted at a tertiary care hospital from January 2017 to January 2018 including 32 adult patients who were treated by TEES for middle ear *** of endoscopic technique was assessed by the conversion rates,visualization of middle ear structures and *** outcomes were evaluated in terms of graft uptake at the third month follow-up and presence of residual or recurrent *** outcomes were evaluated in terms of postoperative air-bone gap closure at third month *** outcomes in terms of post-operative pain,cosmetic score,day of return to daily activities and patient comfort scores were *** quality of life outcomes were evaluated using chronic ear survey(CES)and short form questionnaire12 version 2(SF-12v2)which are disease specific and general quality of life assessment tools ***:Out of 32 patients,endoscopic intact canal wall mastoidectomy was done for 28 and endoscopic canal wall down mastoidectomy in 4 ***(3.1%)patient had to be converted to microscopic *** follow-up period was 32.8 months(9e46 months).There were no post-operative complications in any of our *** mean middle ear structural visibility index score was 8.4±1.4 with the use of zero-degree *** uptake rate at third month follow-up was 100%.Two(6.3%)patients had recurrent disease at 6 months follow-up and were treated by revision endoscopic *** air conduction(51.3±20.2 dB vs.34.5±20.4 dB,pvs.16

关键词： Middle ear cholesteatoma Endoscopic technique Transcanal endoscopic ear surgery

A rapid and sensitive liquid chromatography-tandem mass spectrometric assay for duloxetine in human plasma:Its pharmacokinetic application

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Journal of Pharmaceutical Analysis 2013年第1期3卷 36-44页

作者： Ramakrishna Gajula Rambabu Maddela vasu Babu Ravi Jaswanth Kumar Inamadugu Nageswara Rao Pilli Wellquest Clinical Research Laboratories

This paper describes a simple, rapid and sensitive liquid chromatography tandem mass spectrometry assay for the determination of duloxetine in human plasma. A duloxetine stable labeled isotope （duloxetine ds） was used as an internal standard. Analyte and the internal standard were extracted from 100 btL of human plasma via solid phase extraction technique using Oasis HLB cartridges. The chromatographic separation was achieved on a Cl8 column by using a mixture of acetonitrile 5 mM ammonium acetate buffer （83：17, v/v） as the mobile phase at a flow rate of 0.9 mL/min. The calibration curve obtained was linear （r2≥0.99） over the concentration range of 0.05 101 ng/mL. Multiple-reaction monitoring mode （MRM） was used for quantification of ion transitions at rn/z 298.3/154.1 and 303.3/159.1 for the drug and the internal standard, respectively. Method validation was performed as per FDA guidelines and the results met the acceptance criteria. A run time of 2.5 min for each sample made it possible to analyze more than 300 plasma samples per day. The proposed method was found to be applicable to clinical studies.

关键词： Duloxetine in humanplasma Solid-phase extraction(SPE) Liquidchromatography-tandem mass spectro-metry Method validation Pharmacokinetic studies

Simultaneous determination of telmisartan and amlodipine in human plasma by LC-MS/MS and its application in a human pharmacokinetic study

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Journal of Pharmaceutical Analysis 2012年第5期2卷 319-326页

作者： vasu Babu Ravi Jaswanth Kumar Inamadugu Nageswara Rao Pilli vudagandla Sreenivasulu venkateswarlu Ponneri Research Studies Rayalaseema UniversityKurnool 518002India Wellquest Clinical Research Laboratories RamanthapurHyderabad 500013India BioPolymer and Thermophysical Lab Department of ChemistrySri Venkateswara UniversityTirupati 517502India Analytical and Environmental Chemistry Division Department of ChemistrySri Venkateswara UniversityTirupati 517502India

A rapid and sensitive liquid chromatography-tandem mass spectrometric （LC-MS/MS） assay method has been developed and fully validated for the simultaneous quantification of telmisartan and amlodipine in human plasma. Carbamazepine was used as an internal standard. Analytes and the internal standard were extracted from human plasma by solid-phase extraction technique using Waters Oasis HLB 1 cm3 （30 mg） extraction cartridge. The reconstituted samples were chromatographed on a Hypurity advance C18 column （50mm × 4.6mm, 5 gm） using a mixture of acetonitrile -5 mM ammonium acetate buffer （pH-4.0）（50：50, v/v） as the mobile phase at a flow rate of 0.8mL/min. The calibration curve obtained was linear （r_〉0.99） over the concentration range of 2.01-400.06 ng/mL for telmisartan and 0.05 -10.01 ng/mL for amlodipine. Method validation was performed as per FDA guidelines and the results met the acceptance criteria. A run time of 2.5 min for each sample made it possible to analyze more than 400 human plasma samples per day. The proposed method was found to be applicable to clinical studies.

关键词： Telmisartan Amlodipine Human plasma Solid-phase extraction LC-MS/MS Pharmacokinetics

Crystal and Molecular Structure Analysis in Knoevenagel Condensation Product of Substituted Napthofuran-2-Carbaldehydes

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Crystal Structure Theory and Applications 2020年第3期9卷 49-62页

作者： Avantika Hasija v. Prakash M. Shet Prakash vasu G. Krishnasamy Deepak Chopra Crystallography and Crystal Chemistry Laboratory Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhopal Madhya Pradesh India Sri Sairam College of Engineering Karnataka India Department of Studies and Research in Chemistry University College of Science Tumkur University Tumakuru Karnataka India vivekananda Degree College Malleshwaram Karnataka India Department of Studies and Research in Organic Chemistry Tumkur University Tumakuru Karnataka India

In the current study, two novel Knoevenagel condensation products of substituted napthofuran-2-carbaldehydes were designed, synthesized and characterized. In order to study the intermolecular interactions of title compounds, single crystals were grown by slow evaporation solution growth technique at room temperature and crystal structure has been determined by single crystal X-ray diffraction technique. Both the molecules crystallize in the monoclinic centrosymmetric space group P21/c with one molecule in the asymmetric unit. In compound [4] the molecules are connected via bifurcated C-H···O=C and C-H···N=C H-bonds and van der Waals interactions forming a layered structure, whereas in compound [5a] the molecular conformation is stabilized via intramolecular C-H···O H-bond and molecule interacts with other molecule generated via 21-screw via bifurcated C-H···O=verdana;">C alo

关键词： Napthofuran-2-Carbaldehyde 8-Nitro Napthafura-2-Carbaldehyde Knoevenagel Condensation Single Crystal and Hirshfeld Surface Analysis