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24篇 您的检索式:作者名="anish kumar"
    题名 作者 年代 出处 被引量
1Climatic periodicities recorded in lake sediment magnetic susceptibility data:Further evidence for solar forcing on Indian summer monsoon显示文摘The Indian summer monsoon exhibits considerable spatio-temporal variability.It is therefore important to understand its dynamics and the inherent periodicities.In this study,we have performed spectral and wavelet analyses of magnetic susceptibility data for sediments from Thimmannanayakanakere(TK)-a small lake in southern India.The main objective of this investigation is to identify and explain the possible origin of the prominent periodicities present in the magnetic susceptibility data.Significant periodicities in the TK χ_(lf)data are centered at 906,232,147,128,96,61,54 and 44 years,which might have a solar origin.The wavelet power spectrum of the raw and detrended χ_(lf)data confirms the findings of spectral analysis and also provides temporal variations of the significant cyclicities during the past3700 cal.years B.P.Positive correlation is documented between sunspot activity and TK xif data;crossspectral analysis of the reconstructed sunspot data and TK xif data suggest that there is a strong coherence between the two datasets as significant periodicities are documented in both.There is a good match between the TK xif and the reconstructed total solar irradiance data for the past 1200 years.However,an out-of-phase relationship is documented at certain time-intervals,which may be attributed to uncertainties in the age-depth model.The results obtained from this study show that solar variations are the main controlling factor of the southwest monsoon and,like other archives from different regions in India,the TK lake sediments have also recorded these solar signatures.Anish Kumar Warrier Kizhur Sandeep Rajasekharaiah Shankar 2017Geoscience Frontiers2017,8,6:3
2Liposomal formulations of etoposide and docetaxel for p53 mediated enhanced cytotoxicity in lung cancer cell lines 显示文摘Jinturkar KA Anish C Kumar MK 2012Biomaterials2012,33,8:1
3Barrier coverage with wireless sensors显示文摘SANTOSH Kumar LAI T H and ANISH Arora 2007Wireless Networks2007,13,6:1
4Forecasting category sales and market share for wireless telephone subscribers: a combined approach显示文摘Kumar V Anish Nagpal Rajkumar Venkatesan 2002International Journal of Forecasting2002,18,:1
5成像测井:获取井下直观图像显示文摘地质人员和岩石物理人员利用成像测井直观了解地下岩石,确定构造形态和地层特征。借助于成像资料,人们可以分析油藏特性,诸如非均质性、沉积环境和构造特征,包括裂缝、褶皱和断层等。工程技术人员发现在油基泥浆条件下采集成像数据非常困难,因为油基泥浆本身不导电,致使依赖于导电媒介的成像测井无法采集有效数据,尤其是对裂缝分析而言。如今这一难题已经被新型油基泥浆成像测井成功攻克。janice brown bob davis kiran gawankar anish kumar bingjian li robert laronga peter schlicht 2016国外测井技术2016,37,4:1
6Elastici- ty mapping of precipitates in polycrystalline materials using atomic force acoustic microscopy 显示文摘Kumar Anish Rabe Ute Hirsekorn Sigrun 2008Applied Physics Let-ten2008,92,18:1
7Characterization of microstructures in Inconel 625 using X-ray diffraction peak broadening and lattice pararneter measurements显示文摘Sanjay K Rai Anish Kumar Vani Shankar 2001Scripta Material2001,51,7:1
8Microstructure and Interfacial Reactions During Active Metal Brazing of Stainless Steel to Titanium显示文摘A. Laik A. A. Shirzadi R. Tewari Anish Kumar T. Jayakumar G. K. Dey 2013Metallurgical and Materials Transactions A2013,,5:1
9A review on bioremediation of petroleum hydrocarbon contaminants in soil 显示文摘BIJAY THAPA A JAY KUMAR K C ANISH GHIMIRE 2012Kath- mandu University Journal of Science Engineering and Technology2012,8,1:1
10Kinetics oftwo-stage fermentation process for the production of hydrogen显示文摘Kaushik Nath Manoj Muthukumar Anish Kumar 2008International Journal of Hydrogen Energy2008,33,4:1
11直接甲醇燃料电池用含纳米铜聚氯乙烯电化学氧化膜的制备与表征显示文摘采用化学还原法制备纳米铜颗粒,然后将其嵌入聚氯乙烯(PVC)基体中得到PVC/Cu膜,作为电极材料以提高甲醇燃料氧化的电流响应。用热重分析(TGA)表征PVC/Cu电极的热稳定性,用X射线衍射(XRD)检测电极中的铜纳米颗粒,用傅里叶变换红外光谱(FTIR)鉴定PVC与铜之间的相互反应,用扫描电镜(SEM)和能谱(EDAX)分析该电极的显微形貌,并用循环伏安法、线性扫描伏安法和计时电流法表征该电极的电催化活性。结果表明,随着铜含量从0.18 g(PVC/Cu-0.18 g)增加到0.24 g(PVC/Cu-0.24 g),电极的活性增加,且在铜含量为0.24 g时达到最大值。电极在0.5 mol/L CH3OH+1 mol/L Na OH溶液中达到最大催化电流。FTIR结果显示,电极中含有水分子、C—H基团、铜颗粒和铜的氧化物。SEM和EDAX结果表明,铜颗粒在聚氯乙烯基体中嵌入良好。Rohitash KUMAR Aftab Aslam Parwaz KHAN Anish KHAN Abdullah M ASIRI Yusra HAMID 2020Transactions of Nonferrous Metals Society of China2020,30,8:1
12Characterization of solutionizing behavior in VT14 titanium alloy using ultrasonic velocity and attenuation measurements显示文摘Anish Kumar Jayakumar T Baldev Raj 2003Materials Science and Engineering A2003,360,1:1
13Charaterization of microstructure in inconel 625 using X-ray diffraction peak broadening and lattice parameter measuurements 显示文摘Sanjay K R Anish Kumar Vani Shankar 2004Scripta Materials2004,52,:1
14Liposomal for-mulations of Etoposide and Docetaxel for p53 mediated en-hanced cytotoxicity in lung cancer cell lines 显示文摘Jinturkar K A Anish C Kumar M K 2011Biomaterials2011,24,:1
15Ultrasonic spectral analysis methodology for thick-ness mapping of electrochemical hydrogen meter thim-bles显示文摘Govfind K Sharma Anish Kumar Rajkumar K V 2007Materials Evaluation2007,65,4:1
16Prediction of Surface Roughness in Wire E- lectric Discharge Machining (WEDM) Process based on Response Surface Methodology 显示文摘Anish Kumar 2012International Journal of Engineering and Technology2012,2,4:1
17Antimicrobial dosing in critically ill patients with sepsis-induced acute kidney injury显示文摘Anish Kumar Narinder Singh 2015Indian Journal of Critical Care Medicine2015,,2:1
18Silver nanoparticle technology in orthopaedic infections显示文摘The irrational and prolonged use of antibiotics in orthopaedic infections poses a major threat to the development of antimicrobial resistance.To combat antimi-crobial resistance,researchers have implemented various novel and innovative modalities to curb infections.Nanotechnology involves doping ions/metals onto the scaffolds to reach the target site to eradicate the infective foci.In this conno-tation,we reviewed silver nanoparticle technology in terms of mechanism of action,clinical applications,toxicity,and regulatory guidelines to treat ortho-paedic infections.Madhan Jeyaraman Naveen Jeyaraman Arulkumar Nallakumarasamy Karthikeyan P Iyengar Vijay Kumar Jain Anish G Potty Ashim Gupta 2023World Journal of Orthopedics2023,14,9:0
19Comprehensive evaluation of key management hierarchies for outsourced data显示文摘Key management is an essential component of a cryptographic access control system with a large number of resources.It manages the secret keys assigned to the system entities in such a way that only authorized users can access a resource.Read access control allows read access of a resource by the authorized users and disallows others.An important objective of a key management is to reduce the secret key storage with each authorized user.To this end,there exist two prominent types of key management hierarchy with single key storage per user used for read access control in data outsourcing scenario:user-based and resource-based.In this work,we analyze the two types of hierarchy with respect to static hierarchy characteristics and dynamic operations such as adding or revoking user authorization.Our analysis shows that the resource-based hierarchies can be a better candidate which is not given equal emphasis in the literature.A new heuristic for minimizing the key management hierarchy is introduced that makes it practical in use even for a large number of users and resources.The performance evaluation of dynamic operations such as adding or revoking a user’s read subscription is shown experimentally to support our analytical results.Naveen Kumar Anish Mathuria 2019Cybersecurity2019,2,1:0
20Sedimentary sources and processes in the eastern Arabian Sea:Insights from environmental magnetism,geochemistry and clay mineralogy显示文摘The spatial distribution patterns of surficial sediment samples from different sedimentary domains(shallow to deep-sea regions) of the eastern Arabian Sea were studied using sediment proxies viz.environmental magnetism,geochemistry,particle size and clay mineralogy.Higher concentrations of magnetic minerals(high x_(lf)) were recorded in the deep-water sediments when compared with the shallow water sediments.The magnetic mineralogy of one of the shallow water samples is influenced by the presence of bacterial magnetite as evidenced from the x_(ARM)/x_(lf)^(vs).x_(arm_/x_(fd)biplot.However,the other samples are catchment-derived.The high correlation documented for x_(lf).anhysteretic remanent magnetisation(x_(arm)) and isothermal remanent magnetisation(IRM) with Al indicates that the deep-sea surficial sediments are influenced by terrigenous fluxes which have been probably derived from the southern Indian rivers,the Sindhu(the Indus) and the Narmada-Tapti rivers.A lower Mn concentration is recorded in the upper slope sediments from the oxygen minimum zone(OMZ) but a higher Mn/Al ratio is documented in the lower slope and deep-sea sediments.Clay minerals such as illite(24-48.5%),chlorite(14.1-34.9%),smectite(10.6-28.7%) and kaolinite(11.9-27.5%) dominate the sediments of shallow and deep-sea regions and may have been derived from different sources and transported by fluvial and aeolian agents.Organic carbon(OC) data indicate a low concentration in the shallow/shelf region(well oxygenated water conditions) and deeper basins(increased bottom-water oxygen concentration and low sedimentation rate).High OC concentrations were documented in the OMZ(very low bottom-water oxygen concentration with high sedimentation rate).The calcium carbonate concentration of the surface sediments from the continental shelf and slope regions(< 1800 m) up to the Chagos-Laccadive Ridge show higher concentrations(average = 58%) when compared to deep basin sediments(average = 44%).Our study demonstrates that particle size as well as magnetic grain size,magnetic minerals and elemental variations are good indicators to distinguish terrigenous from biogenic sediments and to identify sediment provenance.Kumar Avinash P.John Kurian Anish Kumar Warrier R.Shankar T.C.Vineesh Rasik Ravindra 2016Geoscience Frontiers2016,7,2:0
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