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| 1 | Utilization of chemical looping strategy in coal gasification processes显示文摘Three chemical looping gasification processes,i.e.Syngas Chemical Looping(SCL) process,Coal Direct Chemical Looping(CDCL) process,and Calcium Looping process(CLP),are being developed at the Ohio State University(OSU).These processes utilize simple reaction schemes to convert carbonaceous fuels into products such as hydrogen,electricity,and synthetic fuels through the transformation of a highly reactive,highly recyclable chemical intermediate.In this paper,these novel chemical looping gasification processes are described and their advantages and potential challenges for commercialization are discussed. | Liangshih Fan Shwetha Ramkumar | 2008 | Particuology2008，6，3： | 34 |
| 2 | Erasure coding for distributed storage: an overview显示文摘In a distributed storage system, code symbols are dispersed across space in nodes or storage units as opposed to time. In settings such as that of a large data center, an important consideration is the efficient repair of a failed node. Efficient repair calls for erasure codes that in the face of node failure,are efficient in terms of minimizing the amount of repair data transferred over the network, the amount of data accessed at a helper node as well as the number of helper nodes contacted. Coding theory has evolved to handle these challenges by introducing two new classes of erasure codes, namely regenerating codes and locally recoverable codes as well as by coming up with novel ways to repair the ubiquitous Reed-Solomon code. This survey provides an overview of the efforts in this direction that have taken place over the past decade. | S.B.BALAJI M.Nikhil KRISHNAN Myna VAJHA Vinayak RAMKUMAR Birenjith SASIDHARAN P.Vijay KUMAR | 2018 | Science China(Information Sciences)2018，61，10： | 8 |
| 3 | Application of remote sensing and GIS analysis for identifying groundwater potential zone in parts of Kodaikanal Taluk, South India显示文摘地下水潜在的地区在遥感和地理信息系统(GIS ) 的帮助下被界定技术。学习区域是在其它上统治的太古代年龄和 charnockite 的镇静的岩石。为识别地质学的地下水潜力地区考虑的参数倾斜,排水密度,似地球形状的单位和貌密度用容纳的资源(红外 P6 LISS IV MX )被产生规模 1:50000 的印度( SOI ) toposheets 的数据和调查并且综合他们与反的距离加权( IDW )基于 GIS 数据当模特儿识别学习区域的地下水潜力。合适的 weightage 因素为这些参数的每个范畴被分配。为各种各样的似地球形状的单位, weightage 因素基于他们的能力被分配存储地下水。这个过程为所有另外的层被重复,结果的层是 reclassified。reclassified 层然后被联合作为很好、好、中等、低、差界定地区。这个地下水潜力信息能为农村人口为饮料水的抽取被用于合适的地点的有效鉴定[出版摘要] | Murugesan BAGYARAJ Thirunavukkarasu RAMKUMAR Senapathi VENKATRAMANAN Balasubramanian GURUGNANAM | 2013 | Frontiers of Earth Science2013，7，1： | 6 |
| 4 | Characterization of Microstructure, Strength, and Toughness of Dissimilar Weldments of Inconel 625 and Duplex Stainless Steel SAF 2205显示文摘The dissimilar combinations of Inconel 625 and duplex stainless steel SAF 2205 obtained from manual GTA welding process employing ER2209 and ERNi CrMo-3 filler metals have been investigated. Formation of secondary phases at the HAZ of Inconel 625 and grain coarsening at the HAZ of SAF 2205 were witnessed while using these filler wires. The average hardness of ER2209 weldments was found to be greater than ERNi CrMo-3 weld. Tensile fracture was observed at the weld zones for both the fillers. Impact test trials showed brittle mode of fracture on employing ER2209 filler and mixed(ductile–brittle) mode of fracture while using ERNi CrMo-3 filler. Further optical microscopy and SEM/EDS analysis were carried out across the weldments to investigate the structure–property relationships. | R. Sridhar K. Devendranath Ramkumar N. Arivazhagan | 2014 | Acta Metallurgica Sinica(English Letters)2014，27，6： | 5 |
| 5 | Evaluation of geochemical behavior and heavy metal distribution of sediments:The case study of the Tirumalairajan river estuary,southeast coast of India显示文摘The purpose of this study was to assess the chemical partitioning of selected heavy metals(Fe,Mn,Cu,Zn,Pb,Cr,Co and Ni) in 10 surface sediments at Tirumalairajan River Estuary in the southeastern coast of India.A five-step sequential extraction technique was used to assess the environmental status of heavy metals.Most of metals were considered to be immobile due to the high availability in the residual fraction of heavy metals.The sediments of Tirumalairajan River estuary had not been polluted by heavy metals,and they didn't pose any high ecological risk.The seasonal variations of heavy metals were slightly higher in summer than in monsoon season.Factor analysis was also carned out to understand the associations of metals in different fractions with sand,silt,clay,organic matter,pH,salinity and other metals.The relationship between the Q-mode and R-mode cluster analyses was useful for identifying the pollution levels in both seasons.It was proved that the enrichment of heavy metals was related with geogenic and anthropogenic sources.The information on total metal concentrations in sediments was not sufficient for assessing the metal behavior in the environment,but the sequential extraction technique was more effective in estimating the environmental impact of contaminated sediments. | Senapathi VENKATRAMANAN Sang-yong CHUNG Thirunavukkarasu RAMKUMAR Gopalakrishnan GNANACHANDRASAMY Tae Hyung KIM | 2015 | International Journal of Sediment Research2015，30，1： | 2 |
| 6 | Variations in texture of beach sediments in the vicinity of the Tirumalairajanar river mouth of India显示文摘沿着在 Karikal 和 Nagore 之间的沙滩沉积的 11 km 段的谷物尺寸参数的分发,表明吝啬的谷物尺寸在从西方流动到东方的 Tirumalairajanar 河的嘴的任何一个方面上展出一个显著减少趋势。沉积主要具有媒介到粗糙颗粒,中等排序,在对称附近在自然扭曲了到扭曲的罚款和 leptokurtic 到 mesokurtic。各种各样的参数的相互关系显示出有媒介的优势到粗糙的沙的沉积的 bimodal 自然。沉积秋天在的主要部分一对精细的范畴(沙和淤泥) 粗糙。基于 CM (更粗糙的在微米的百分位数价值) 模式,在滚动的沉积秋天和暂停地。这些因素包括从河混合解除与的沉积近海沉积并且与沉积从来源岩石侵蚀了。波浪排序的效果,并且向北方由沿岸的电流沉积漂流是可理解的。结果显示 Tirumalairajanar 河是为在学习区域的现代沉积的最重要的来源。由波浪的焦虑是在在学习区域的沉积运输向北方是的学习区域,和网的重要排序机制。调查结果基于谷物尺寸并且也在在 Karaikal 和 Nagore 区域之间的季风和夏天季节期间由沙滩沉积动力学和运输的短期的观察支持了。 | Senapathi VENKATRAMANAN Thirunavukkarasu RAMKUMAR Irudhayanathan ANITHAMARY Govindaraj RAMESH | 2011 | International Journal of Sediment Research2011，26，4： | 2 |
| 7 | In vitro evaluation of free radical scavenging activity of Codariocalyx motorius root extract显示文摘Objective:To determine the phenolic content in Codariocalyx motorius root extract and to evaluate its antioxidant properties using various in vitro assay systems.Methods:The antioxidant activity was evaluated based on scavenging of 1,1—diphenyl—2—picrylhydrazyl,hydroxyl radicals,superoxide anions,nitric oxide,hydrogen peroxide,peroxvnilrile,reducing power and by inhibition oi lipid peroxidation which was estimated in terms of thiohurhituric acid reactive substances.Results:The root extract of the Codariocalyx motorius(C.motorius) exhibited potent total antioxidant activity that increased with increasing amount of extract concentration,which was compared with standard drug such as quercetin.butylaled hvdroxvloluene.tocopherol at different concentrations.The different concentrations of the extracts showed inhibition on lipid peroxidation.In addition,the extracts had effective reducing power,free radical scavenging, super oxide anion scavenging,nitric oxide scavenging,lipid peroxidation,and total phenolic content depending on concentration.High correlation between total phenolic contents and scavenging potential of different reactive oxygen species(r^2=0.83 1 -0.978) indicated the polyphenols as the main antioxidants.Conclusions:Codariocalyx motorius(C.motorius) root possess the highly active antioxidant substance which can be used for the treatment of oxidative stress-related diseases. | Uma Chidambaram Vanitha Pachamuthu Suganya Natarajan Bhakkiyalakshmi Elango Suriyanarayanan Kunga Mohan Ramkumar | 2013 | Asian Pacific Journal of Tropical Medicine2013，6，3： | 2 |
| 8 | Genetic characterization of 2006–2008 isolates of Chikungunya virus from Kerala, South India, by whole genome sequence analysis显示文摘 | E. Sreekumar Aneesh Issac Sajith Nair Ramkumar Hariharan M. B. Janki D. S. Arathy R. Regu Thomas Mathew M. Anoop K. P. Niyas M. R. Pillai | 2010 | Virus Genes2010，，1： | 2 |
| 9 | Early Cenozoic rapid flight enigma of the Indian subcontinent resolved:Roles of topographic top loading and subcrustal erosion显示文摘Intrinsic magmatic processes are considered as critical operators of plate movements.Here we demonstrate the role of extrinsic processes consequent to intrinsic processes as a catalyst for anomalous rapid plate movement.The rapid and accelerated flight of the Indian subcontinent since Deccan volcanism until its collision with Eurasia remains as one of the geological conundrums.Data on seismic tomography,peninsular geomorphology and inferences on continuum of subcrustal structures are utilized to address this enigma.We propose geomorphic isostasy as the mechanism that has driven this fastest drift ever recorded in geological history.It was initiated by sudden instability after the Deccan volcanism and resultant extensive accumulation of lava pile over continental lithosphere of northern India,northern-eastern tilt due to crustal thickness heterogeneity and subcrustal thermal stratification.The drift was sustained by Carlsberg and Central Indian ridge-push until collision and sediment top loading at northeast thenceforth.These inferences and geomorphic isostasy as a catalytic mechanism necessitate variability of drift rates as integral inputs for any continental scale modeling. | Muthuvairavasamy Ramkumar David Menier Manoj Mathew M.Santosh Numair A.Siddiqui | 2017 | Geoscience Frontiers2017，8，1： | 2 |
| 10 | Efficacy and safety of traditional medical therapies for chronic constipation : systematic review显示文摘 | RAMKUMAR D RAO S S | 2005 | Am J Gastroenterol2005，100，4： | 1 |
| 11 | A Suevey on Con- tent based Medical Image Retrieval for Mri Brain Images 显示文摘 | Sharmila G Saraswathi D Ramkumar R | 2014 | International Journal of Research in Engineering and Technology2014，3，19： | 1 |
| 12 | Simulink Modeling for Vehicle Simulator Design显示文摘 | Chandrakantha Ursu Ramachandra Bhat Ramkumar Damodaran | 2011 | SAE Paper2011，，1： | 1 |
| 13 | Global and local be- haviour based composite damping studies on thin-walled box structure 显示文摘 | Ramkumar K Ganesan N Kannan R | 2010 | European Journal of Mechanics A/Solids2010，29，： | 1 |
| 14 | Suitability ofnon-lethal marker and marker-free systems for development of trans-genic crop plants:Present status and future prospects显示文摘 | MANIMARAN P RAMKUMAR G SAKTHIVEL K | 2011 | BiotechnologyAdvances2011，，29： | 1 |
| 15 | Clustering data without distance functions显示文摘 | Ramkumar G D Swami A | 1998 | Bulletin of the IEEE Computer Society Technical Committee on Data Engineering1998，21，1： | 1 |
| 16 | Design, synthesis and structure-activity studies of rhodanine deri- vatives as HIV-1 integrase inhibitors 显示文摘 | Ramkumar K Yarovenko V N Nikitina A S | 2010 | Molecules2010，15，6： | 1 |
| 17 | Effect of body size anc boy compositi on survival in peritoneal dialysis patients 显示文摘 | RAMKUMAR N PAPPAS L M BEDDHU S | 2005 | Petit Dial Int2005，25，5： | 1 |
| 18 | The pylorus 显示文摘 | Ramkumar D Schalze KS | 2005 | Neurogastroenterol Motil2005，，： | 1 |
| 19 | Efficacy and safety of traditional medical therapies for chronic constipation: systematic review显示文摘 | Ramkumar D Rao SS | 2005 | Am J Gastroenterol2005，100，4： | 1 |
| 20 | The Use of Mesh versus Primary Fascial Closure of the Abdominal Donor Site When Using a Transverse Rectus Abdominis Myocutaneous Flap for Breast Reconstruction:A Cost-Utility Analysis显示文摘 | Chatterjee A Ramkumar DB Dawli TB | 2014 | Plast Reconstr Surg2014，135，3： | 1 |
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