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19篇 您的检索式:作者名="V.kumar"
    题名 作者 年代 出处 被引量
1Immunogenicity and reactogenicity of a recombinant hepatitis B vaccine in subjects over age of forty years and response of a booster dose among nonresponders显示文摘AIM: The study was initiated to evaluate the reactogenicity and immunogenicity of a recombinant hepatitis B vaccine in age group >40 years and to study the response of a single booster dose in primary non-responders to the hepatitis B vaccination.METHODS: A total of 102 volunteers without markers of hepatitis B infection (negative for HBsAg, anti-HBc antibody,HBeAg and anti-HBs antibody) received 20 pg of recombinant HB vaccine intramuscularly at 0, 1, and 6 months. Anti HBs titers were evaluated by a quantitative Elisa kit at 90 and 210 days. A booster dose of 20 pg HB vaccine was given after 6 months of the 3rd vaccine dose to the 15 nonresponders and anti-HBs titers were measured after 1 month.RESULTS: Seroprotection (anti-HBs GMT3 10 IU/L) was achieved in 85.3 % (87/102) volunteers. The mean GMT titers of the vaccine responders was 136.1 IU/L. Of the seroprotected individuals, there were 32.4 % (33/102) hyporesponders (antiHBs titers <10-99 mlU/ml) and 52.9 % (54/102) were responders (anti-HBs titers >100 IU/L). All the non-responders (15/15) responded to a single dose of the booster dose of recombinant HB vaccine and their mean anti-HBs antibody titers were more than 100.5 mIU/ml after the booster dose.CONCLUSION: Recombinant hepatitis B vaccine offers good seroprotection in the age group >40 years and has a good safety profile. A single booster dose after 6 months in primary non-responders leads to good seroprotective anti-HBs antibody titers. However, larger population based studies are needed to evaluate the role of a booster dose in selected group of non-responders and whether such an approach will be cost effective.Kunal Das R.K.Gupta V.Kumar P.Kar 2003World Journal of Gastroenterology2003,9,5:12
2纺织品过滤材料及其应用显示文摘V.Kumar 张威 2004国外纺织技术(纺织针织服装化纤染整)2004,,1:8
3DNA测序、PCR-SSCP和phaB间接药敏实验检测结核分枝杆菌利福平耐药性的比较显示文摘地点:印度Chennai结核病研究中心。目的:利用表型和基因型方法快速鉴定耐多药结核分枝杆菌。设计:对两种基因型分析方法,即 DNA测序法和聚合酶链反应-单链构象多态性(PCR-SSCP)法和一种表型分析方法,即噬菌体生物增殖法(phaB)进行了实验室内的标准化,并利用这三种方法测定101株RFPr和100株RFPs临床分离结核分枝杆菌 的利福平耐药性。结果和结论:将三种方法的检测结果与常规间接药敏实验进行比较。DNA测序法的灵敏度和特异度分别为97%和100%,PCR-SSCP法为76%和100%,而phaB实验为97%和84%。DNA测序法的灵敏度和特异度高于其它两种方法。C.Mani N.Selvakumar V.Kumar S.Narayanan P.R.Narayanan 李传友 2003国际结核病与肺部疾病杂志2003,,4:2
4Driving Profitability by Encouraging Customer Referrals:Who,When,and How显示文摘V.Kumar JAndrew Petersen Robert P.Leone 0,,74:1
5查看详情显示文摘Y.Yagi T.M.Briere M.H.F.Sluiter V.Kumar A.A.Farajian and Y.Kawazoe 0,,07:1
6' A Customer Lifetime Value Framework for Customer Selection and Resource Allocation Strategy'显示文摘Venkatesan Rajkumar V.Kumar 0,,:1
7查看详情显示文摘Canesi E. V Binda M Abate A Guarnera S.Moretti L.D'Innocenzo V.Kumar R.S.S.Bertarelli C.Abrusci A.Snaith H.Calloni A.Brambilla A.Ciccacci F.Aghion S.Moia F.Ferragut R.Melis C.Malloci G.Mattoni A.Lanzani G.Petrozza A 0,,10:1
8State-of-the-Artin Parallel Search Techniques for Discrete Optimization Problems显示文摘A.Grama V.Kumar 0,,01:1
9The Im Pact of Customer Relationship Charaeteristicson Profitable Lifetime Duration显示文摘Werner J V.Kumar 0,,:1
10Internal feedbacks from monsoon-midlatitude interactions during droughts in the Indian summer monsoon显示文摘Krishnan R V.Kumar M.Sugi J.Yoshimura 0,,:1
11Orbital Metastasis as the First Presentation of Nonpalpable Invasive Lobular Carcinoma of the Breast显示文摘MaryamKadivar AzadehJoulaee Mohsen BahmaniKashkouli Homayoun HadizadehKharazi MojganKalantari Perikala V.Kumar 2006The Breast Journal2006,,1:1
12艾斯能对治疗合并有血管危险因素阿尔茨海默病患者的有效性和安全性研究(译文)(续)显示文摘V.Kumar R.Anand J.Messina R.Hartman J.Veach 张振馨 2001中国神经免疫学和神经病学杂志2001,8,4:1
13Effect of hydrogen plasma treatment on the growth and microstructures of multiwalled carbon nanotubes显示文摘The effect of hydrogen plasma treatment of iron oxide films on the growth and microstructure of carbon nanotubes(CNTs)by microwave plasma enhanced chemical vapor deposition process has been investigated.Microwave plasma was characterized in-situ using optical emission spectrometer.Morphology of the films was examined by scanning electron microscopy.Structural analysis was carried out by high resolution transmission electron microscopy(HRTEM)equipped with energy dispersive X-ray spectroscopy(EDS)and micro-diffraction attachments.It is found that oxide films without H_2 plasma pretreatment or treated for lesser time resulted in CNT films with high percentage of carbonaceous particles and with embedded particles/nanorods distributed discontinuously in the cavity of the nanotubes.The embedded particles were found to be of iron carbide(Fe-C)as confirmed by HRTEM,EDS and micro-diffraction analysis.Experimental observations suggested that the iron oxide particles had poor catalytic action for CNT growth and in-situ reduction of oxide clusters to Fe by hydrogen plasma plays a key role in discontinuous filling of the nanotubes by the catalytic particles.S.K.Srivastava V.D.Vankar V.Kumar 2010Nano-Micro Letters2010,2,1:1
14每核子14.6和60GeV能量下氧离子诱发核反应的带电粒子谱显示文摘本文给出了每核子14.6和60GeV能量下氧离子诱发核反应的带电粒子多重数分布和赝快度分布.实验数据取自EMU-01乳胶叠,并与Lund Monte Carlo模型(FRITIOF)作了比较.M.I.Adamovich M.M.A■■arwal R.Arora Y.A.Alexandrov S.A.Azimov S.K.Badyal E.Basova K.B.Bhalla A.Bhasin V.S.Badyal R.A.Bomadarenko T.H.Burnett 蔡(冒力) L.P.Chernova M.M.Chernyavski B.Dressel E.M.Friedlander S.I.Gerassimov E.R.Ganssau■e S.Garpman S.G.Gerassimov A.Gill J.Grote K.G.Gulamov V.G.Gulyamov V.K.Gupta S.Hackel H.H.Heckman B.Jakobsson B.Judek S.Katroo F.G.Kadyrov H.Kallies L.Karlsson G.L.Kaul M.Kaur S.P.Kharlamov J.Kohli V.Kumar P.Lal V.G.Larinova P.J.Lindstrom 刘连寿 S.Lokanathan J.Lord N.S.Lukicheva L.K.Man■otra N.V.Maslennikova I.S.Mitta E.Monnand S.Moolerjee C.Mueller S.H.Nasyrov V.S.Nvtny G.I.Orlova I.Otterlund N.G.Peresadko S.Persson N.V.Petrov 钱琬燕 R.Raniwala S.Raniwana N.K.Rao J.Y.Rhee N.Shaidkhanov N.G.Salmanova W.Schulz F.Schussler V.S.Shukla D.Skeldin■ K.Soderstrom E.Stanlund R.S.Storey 孙君芬 L.N.Svechnilova M.I.Tretyakova T.P.Trofimova 王海桥 翁智群 R.J.Wilkes 许国发 张东海 郑蒲英 周代翠 周景晨 1989高能物理与核物理1989,13,10:0
15利用微波遥感估算盐度显示文摘土壤水分的相互作用和释放出的离子引起水的盐度。河、湖、海洋和地表水,由于渗透作用和表面耗失而变化。我们通过数值计算的方法对代表河、湖和海洋水特征的各种模的微波响应进行了分析,研究了用微波遥感估算盐度的可行性。结果表明微波遥感响应特性对盐度和水表温度的依赖关系。研究结果对微波传感器参数的选择以及在微波遥感数据精确估算盐度方面是有用的。R.P.Singh V.Kumar S.K.Srivastav 吴隆业 1996海岸工程1996,15,3:0
16石墨烯纳米晶片对提高CNT-CB填充聚(1,4-顺式-异戊二烯)基纳米复合材料性能的作用显示文摘研究了市售碳同素异形体和顺式1,4-聚异戊二烯(IR,又称“异戊二烯橡胶”)基纳米复合材料。所用的碳同素异形体为剥离型石墨烯纳米晶片xg C750(xGnPs)、碳纳米管(CNT-NC7000)和炭黑(CB-Printex xe2)。首先用炭黑和CNT与IR混炼制备CB-CNT基母炼胶。通过添加2~15质量份xg C750获得了终炼纳米复合材料。介绍了在橡胶基质中增加xg C750填充量对填充胶动态力学性能、热性能和电性能的作用。通过多次滞后损失试验证实了填料网络化的稳定性。朱永康(编译) V.kumar T.hanel H.K.Chougule 2020现代橡胶技术2020,46,3:0
17Energy-Efficient Cluster in Wireless Sensor Network Using Life Time Delay Clustering Algorithms显示文摘Through Wireless Sensor Networks(WSN)formation,industrial and academic communities have seen remarkable development in recent decades.One of the most common techniques to derive the best out of wireless sensor networks is to upgrade the operating group.The most important problem is the arrangement of optimal number of sensor nodes as clusters to discuss clustering method.In this method,new client nodes and dynamic methods are used to determine the optimal number of clusters and cluster heads which are to be better organized and proposed to classify each round.Parameters of effective energy use and the ability to decide the best method of attachments are included.The Problem coverage find change ability network route due to which traffic and delays keep the performance to be very high.A newer version of Gravity Analysis Algorithm(GAA)is used to solve this problem.This proposed new approach GAA is introduced to improve network lifetime,increase system energy efficiency and end delay performance.Simulation results show that modified GAA performance is better than other networks and it has more advanced Life Time Delay Clustering Algorithms-LTDCA protocols.The proposed method provides a set of data collection and increased throughput in wireless sensor networks.V.Kumar N.Jayapandian P.Balasubramanie 2022Computer Systems Science & Engineering2022,43,10:0
18Local perceptions of grassland change and priorities for conservation of natural resources of Banni, Gujarat, India显示文摘This study was conducted in the Banni region of the Gujarat State,India,which is located in the western-most end of the country.The main objective was to investigate the local perceptions of grassland change,regeneration potentiality,socio-economic status and fac-tors that cause degradation of the vegetation resources in Banni.Participatory Rural Appraisal(PRA)was employed to generate the socio-economic profile of interviewed villages or hamlets.Information on vegetation deteriora-tion and changes in species composition significant for sustainable management of grassland was obtained through interviews with 51 elderly maldharies(pastoral-ists)and local inhabitants living in 31 villages in Banni.Local people had observed a change in the local surrounding habitats from grassland to woodland(domi-nated by Prosopis juliflora,locally called Gando Bavar)during their lifetime and considered it primarily a result of frequent intensive drought,constructed dams on flooding rivers in Banni,and declining rainfall.The socio-economic survey showed that the Banni communities are highly dependent on the natural grassland for various purposes.In particular,nine woody species were useful for construction of the traditional house called Bhunga,four for medicine and 22 for livestock fodder.Highly preferred and declining species were characteristically large wild thorny trees with edible fruits,viz.Acacia nilotica subsp.indica(Bavar),Prosopis cineraria(Kandho),and Salvadora persica(Kharijar).Some of the locally highly preferred grass species were also considered to be declining in the local environs;they included Dichanthium annulatum(Jinjvo),Cenchrus ciliaris(Dhaman),Sporobolus fertilis(Khevai)and Chloris barbata(Siyarpuchha).The study furthermore identified a close coincidence between the interest in conserving tree species diversity nearby the natural water resources and priorities of local inhabitants,which included protection of plenty of large trees(including many fruit tress,viz.Mangifera indicia(Ambo),Cordia dichotoma(Gunda)and Pithecellobium dulce(Gora-samli)),improvement of woody fodder tree and grass species regeneration,and reduction of overgrazing pres-sure on grasslands.Focusing management strategies on increasing the populations of such declining and highly preferred tree and grass species,by active restoration and grazing policies,would enhance the natural resource value and biodiversity wealth considerably and thereby the quality of life for the local inhabitants.The implications of the results are discussed and recommendations are suggested for conservation,management,and sustainable utilization of the fragile grassland ecosystem of the Banni region.P.N.JOSHI V.KUMAR M.KOLADIYA Y.S.PATEL T.KARTHIK 2009Frontiers in Biology2009,4,4:0
19Genotype × environmental interactions for analyzing adaptability and stability in different clones of Dalbergia sissoo Roxb.显示文摘In total 36 superior clones of Dalbergia sissoo Roxb., screened from 300 selections conducted in natural and growing range of India and Nepal, were multiplied using single nodal cuttings and established to evaluate genotype×environmental interactions for adaptability and stability at the age of 30 months in three geographical locations in the state of Punjab, India. Clone 124 had maximum adaptability and stability (bi = 1.04) to perform exceedingly well over the locations. Clones 36 and 1 were stable with mean regression coefficient of 0.84 and 1.22, respectively. Nonetheless, clone 41 performed exceedingly well for all the characters to attain maximum population mean, and the performance varied substantially across the locations. Therefore, clone 41 was considered as productive but non-adaptive clone. Though some of the clones were sensitive to sites, 14 clones for height, 16 for collar diameter, 12 for DBH and 7 for volume were relatively un-sensitive with higher regression coefficient. Nonetheless, clone 124 was the most stable with average bi value of 1.04 and productive, which could play an important role in future breeding and commercial deployment of stable and productive planting stock of Dalbergia sissoo.A.Kumar A.Bhatt S.Ravichandran V.Kumar S.Dobhal 2012Journal of Forestry Research2012,23,1:0
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