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653篇 您的检索式:作者名="Hariharan"
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1PDC钻头的水力设计和轮廓是减少泥包的关键显示文摘通过大量的实验数据论述PDC钻头的水力设计和轮廓造型与钻头产生泥包的关系。提出具有抛物线轮廓和刮刀式水力设计的聚晶金刚石(PDC)钻头在页岩地层中不易产生泥包,而采用脊式布齿或开放式表面水力设计的PDC钻头或平/圆轮廓PDC钻头则相反。同时,指出PDC钻头的水力设计对钻头泥包的产生具有更大的影响。赵佩华 P.R Hariharan 1997国外石油机械1997,8,5:10
2I/O Acceleration via Multi-Tiered Data Buffering and Prefetching显示文摘Modern High-Performance Computing(HPC)systems are adding extra layers to the memory and storage hierarchy,named deep memory and storage hierarchy(DMSH),to increase I/O performance.New hardware technologies,such as NVMe and SSD,have been introduced in burst buffer installations to reduce the pressure for external storage and boost the burstiness of modern I/O systems.The DMSH has demonstrated its strength and potential in practice.However,each layer of DMSH is an independent heterogeneous system and data movement among more layers is significantly more complex even without considering heterogeneity.How to efficiently utilize the DMSH is a subject of research facing the HPC community.Further,accessing data with a high-throughput and low-latency is more imperative than ever.Data prefetching is a well-known technique for hiding read latency by requesting data before it is needed to move it from a high-latency medium(e.g.,disk)to a low-latency one(e.g.,main memory).However,existing solutions do not consider the new deep memory and storage hierarchy and also suffer from under-utilization of prefetching resources and unnecessary evictions.Additionally,existing approaches implement a client-pull model where understanding the application's I/O behavior drives prefetching decisions.Moving towards exascale,where machines run multiple applications concurrently by accessing files in a workflow,a more data-centric approach resolves challenges such as cache pollution and redundancy.In this paper,we present the design and implementation of Hermes:a new,heterogeneous-aware,multi-tiered,dynamic,and distributed I/O buffering system.Hermes enables,manages,supervises,and,in some sense,extends I/O buffering to fully integrate into the DMSH.We introduce three novel data placement policies to efficiently utilize all layers and we present three novel techniques to perform memory,metadata,and communication management in hierarchical buffering systems.Additionally,we demonstrate the benefits of a truly hierarchical data prefetcher that adopts a server-push approach to data prefetching.Our evaluation shows that,in addition to automatic data movement through the hierarchy,Hermes can significantly accelerate I/O and outperforms by more than 2x state-of-the-art buffering platforms.Lastly,results show 10%-35%performance gains over existing prefetchers and over 50%when compared to systems with no prefetching.Anthony Kougkas Hariharan Devarajan Xian-He Sun 2020Journal of Computer Science & Technology2020,35,1:2
3Influence of stack geometry and resonator length on the performance of thermoacoustic engine显示文摘N.M. Hariharan P. Sivashanmugam S. Kasthurirengan 2012Applied Acoustics2012,,10:2
4Total hip arthroplasty in fused hips with spine stiffness in ankylosing spondylitis显示文摘Ankylosing spondylitis(AS)is characterized by involvement of the spine and hip joints with progressive stiffness and loss of function.Functional impairment is significant,with spine and hip involvement,and is predominantly seen in the younger age group.Total hip arthroplasty(THA)for fused hips with stiff spines in AS results in considerable improvement of mobility and function.Spine stiffness associated with AS needs evaluation before THA.Preoperative assessment with lateral spine radiographs shows loss of lumbar lordosis.Spinopelvic mobility is reduced with change in sacral slope from sitting to standing less than 10 degrees conforming to the stiff pattern.Care should be taken to reduce acetabular component anteversion at THA in these fused hips,as the posterior pelvic tilt would increase the risk of posterior impingement and anterior dislocation.Fused hips require femoral neck osteotomy,true acetabular floor identification and restoration of the hip center with horizontal and vertical offset to achieve a good functional outcome.Cementless and cemented fixation have shown comparable long-term results with the choice dependent on bone stock at THA.Risks at THA in AS include intraoperative fractures,dislocation,heterotopic ossification,among others.There is significant improvement of functional scores and quality of life following THA in these deserving young individuals with fused hips and spine stiffness.Anil Thomas Oommen Triplicane Dwarakanathan Hariharan Viruthipadavil John Chandy Pradeep MathewPoonnoose Arun Shankar A Roncy Savio Kuruvilla Jozy Timothy 2021World Journal of Orthopedics2021,12,12:2
5Genetic 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 2010Virus Genes2010,,1:2
6An eco-friendly water mediated synthesis of 1,2,3-triazolyl-2-aminopyrimidine hybrids as highly potent anti-bacterial agents显示文摘An elegant and efficient synthesis of novel 1,2,3-triazole fused 2-aminopyrimidine hybrids has been accomplished for the first time in the green solvent viz. water. The hybrid molecules exhibit significant anti-bacterial activity when screened against three human pathogens viz. Staphylococcus aureus, Pseudomonas aeruginosa and Klebsiella pneumoniae. In comparison to the commercially marketed drug tetracycline, some of them are equally potent and a few are more potent.Sangaraiah Nagarajan Poovan Shanmugavelan Murugan Sathishkumar Ramasamy Selvi Alagusundaram Ponnuswamy Hariharan Harikrishnan Vellasamy Shanmugaiah 2014Chinese Chemical Letters2014,25,3:2
7Biosynthesis, purification and characterization of silver nanoparticles using Escherichia coli显示文摘Sangiliyandi Gurunathan Kalimuthu Kalishwaralal Ramanathan Vaidyanathan Deepak Venkataraman Sureshbabu Ram Kumar Pandian Jeyaraj Muniyandi Nellaiah Hariharan Soo Hyun Eom 2009Colloids and Surfaces B: Biointerfaces2009,,1:2
8Chemical and electrochemical copolymerization of aniline with alkyl ring-substituted anilines显示文摘 Hariharan R Patel S A 1990Macromolecules1990,23,:1
9Improved graft survival after renal transplantation in the United States, 1988 to 1996显示文摘Hariharan S Johnson CP Bresnahan BA 2000N Engl J Med2000,342,9:1
10A two machine bicriteria scheduling problem显示文摘Subhash C S Hariharan R 2000International Journal of Production Economics2000,65,:1
11Generalized universal Reynolds equations for variable properties fluid-film lubrification and variable geometry selfacting bearings显示文摘Hannon W M Braun M J Hariharan S I 2004Tribology Transactions2004,47,2:1
12Classification of speech dysfluencies with MFCC and LPCC features 显示文摘M O C HARIHARAN M YAACOB S 2012Ex- pert Systems with Applications2012,39,2:1
13Identification and characterization of a principal oxidation impurity in clopidogrel drug substance and drug product显示文摘Mohan A Hariharan M Vikraman E Subbaiah G Venkataraman B R Saravanan D 2008J Pharm Biomed Anal2008,47,:1
14A rationally designed dual role anode material for lithium-ion and sodium-ion batteries: case study ofeco-friendly Fe3C>4 显示文摘HARIHARAN S SARAVANAN K RAMAR V 2013Physical Chemistry Chemical Physics2013,15,8:1
15High-throughput sequencing for biology and medicine显示文摘Wendy Weijia Soon Manoj Hariharan Michael P Snyder 2013Molecular Systems Biology2013,22,1:1
16Oxidative stress stim- ulates autophagie flux during ischemia/reperfusion 显示文摘HARIHARAN N ZHAI P SADOSHIMA J 2011Antioxida- nts and Redox Signaling2011,14,11:1
17Superior mesenteric artery syndrome and“the nutcracker phenomenon”显示文摘VULLIAMY P HARIHARAN V GUTMANN J 2013BMJ case Rep2013,,:1
18Improved graft survival after renal transplantation in the United States,1988 to 1996显示文摘HARIHARAN S JOHNSON CP BRESNAHAN B 2000N Engl J Med2000,342,9:1
19Differential regu- lation of cellular senescence and differentiation by prolyl isomer- ase Pinl in cardiac progenitor cells 显示文摘Toko H Hariharan N Konstandin MH 2014J Biol Chem2014,289,9:1
20Spinal cord injury in patients with ankylosing spondylitis: a 10-year review显示文摘Thumbikat P Hariharan RP Raviehandran G 2007Spine (Phila Pa 1976)2007,32,26:1
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