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Information Sharing in a Supply Chain with Horizontal Competition: The Case of Discount Based Incentive Scheme  [PDF]
Birendra K. Mishra, Srinivasan Raghunathan
Theoretical Economics Letters (TEL) , 2012, DOI: 10.4236/tel.2012.24069
Abstract: Li [1] examined the incentives for information sharing in a two-level supply chain in which there are a manufacturer and many competing retailers. Li showed that direct and leakage effects of information sharing discourage retailers from sharing their information and identified conditions under which demand information sharing can be traded. The purpose of this note is to show that full information is the equilibrium if the manufacturer adopts a discount based incentive scheme instead of the side-payment scheme used by Li. The discount-based scheme eliminates the direct as well as leakage effects. Discount based scheme is attractive because similar schemes are commonly used in practice and it results in Pareto-efficient information sharing equilibrium that has a higher social welfare and consumer surplus than the no information sharing scenario. The total social benefits and consumer surplus are higher in discount based incentive scheme. Consequently, many of the key results of Li are critically dependent on the assumption that the manufacturer uses side payment for information.
Neurosyphilis
Srinivasan K
Neurology India , 2009,
Abstract:
Fluorine Doping Effect in the New Superconducting Y3Ba5Cu8Oy Compound  [PDF]
K. Srinivasan, George Thomas C., P. Padaikathan
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2011, DOI: 10.4236/jmmce.2011.1014100
Abstract: The newly identified yttrium based high critical temperature (Tc) superconductor of composition Y3Ba5Cu8Oy (Y358) and the fluorine doped Y3Ba5Cu8Oy-0.2F0.2 (Y358+F) compounds were synthesized by solid state reaction technique. The micro structural and morphological features of the synthesized samples were investigated by X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Energy Dispersive Spectrum (EDS) analysis. The XRD of the samples revealed a structure similar to Y1Ba2Cu3Oy-o(Y123) compound with about three fold larger ‘c’ axis. The SEM image of the fluorine doped sample (Y358+F) showed a needle like inter growth which was different from that of pure (Y358) sample. The Tc of the sample, measured by self inductance method showed an onset of superconductivity at 92 K for the pure and 98 K for the fluorine doped sample. On further heating the fluorinated sample for 24 hours, the needle like intergrowth had disappeared as seen from SEM micrograph and the Tc onset of the sample had increased to 110 K with a two step transition.
Optimization Techniques for Verification of Out-of-Order Execution Machines
Sudarshan K. Srinivasan
Journal of Electrical and Computer Engineering , 2010, DOI: 10.1155/2010/515021
Abstract: We develop two optimization techniques, flush-machine and collapsed flushing, to improve the efficiency of automatic refinement-abased verification of out-of-order (ooo) processor models. Refinement is a notion of equivalence that can be used to check that an ooo processor correctly implements all behaviors of its instruction set architecture (ISA), including deadlock detection. The optimization techniques work by reducing the computational complexity of the refinement map, a function central to refinement proofs that maps ooo processor model states to ISA states. This has a direct impact on the efficiency of verification, which is studied using 23 ooo processor models. Flush-machine, is a novel optimization technique. Collapsed flushing has been employed previously in the context of in-order processors. We show how to apply collapsed flushing for ooo processor models. Using both the optimizations together, we can handle 9 ooo models that could not be verified using standard flushing. Also, the optimizations provided a speed up of 23.29 over standard flushing.
EXPERIMENTAL STUDY OF CENTRIFUGAL HUMIDIFIER FITTED IN AN INDUSTRIAL SHED LOCATED IN TROPICAL CLIMATES
K SENTHILKUMAR,Pss Srinivasan
Thermal Science , 2011, DOI: tsci1102467s
Abstract: An evaporative cooling system based on centrifugal humidification technique is proposed for large industrial spaces. In this system, the evaporation rate is improved by splitting the water into fine micronisers by impinging it onto the stationery strips. The various parameters influencing the rate of evaporation are identified. The effect of mass flow rate of water, disc speed and mass flow rate of air on space cooling and humidifier efficiency is studied experimentally and plotted with respect to time. The studies indicate that medium mass flow rate of water, higher disc speed and medium mass flow rate of air are preferable in reducing the dry bulb temperature of room and for increasing humidifier efficiency.
A Study of the Morbidity Status of Children in Social Welfare Hostels in Tirupati Town
Srinivasan K,Prabhu GR
Indian Journal of Community Medicine , 2006,
Abstract:
Assessment of Infiltration rate of a Tank Irrigation Watershed of Wellington reservoir, Tamilnadu, India
Srinivasan.K
American Journal of Engineering Research , 2013,
Abstract: A Study was attempted to assess the infiltration rate of a tank irrigated Wellington watershed of Tamilnadu, India. Different types of soil samples have been collected from 30 locations spread uniformly over study area in order to examine the infiltration rate of soils and its impact on the overall crop production process. Double ring infiltrometer was used to carry out the experimental study. Infiltration rates were taken at 0 to70minutes of 10 minutes intervals. The assessment or determination of infiltration rate was processed by laboratory analysis of soil samples for the particle size distribution. The infiltration rates were well above the recommended values for crop production. This will help improve the structure and restore soil potentials. Apart from these, suitability evaluation of land in order to effectively categorize soils on the basis of their potential for optimal use could as well be imperative.
Bimetal Adsorption by Cottonseed Carbon: Equlibrium and Kinetic Studies
K. Srinivasan,E. Sathiya
Journal of Chemistry , 2009, DOI: 10.1155/2009/106127
Abstract:
Geopolymer Binders: A Need for Future Concrete Construction
K. Srinivasan,A. Sivakumar
ISRN Polymer Science , 2013, DOI: 10.1155/2013/509185
Abstract: Applications of polymer based binder material can be an ideal choice in civil infrastructural applications since the conventional cement production is highly energy intensive. Moreover, it also consumes significant amount of natural resources for the large-scale production in order to meet the global infrastructure developments. On the other hand the usage of cement concrete is on the increase and necessitates looking for an alternative binder to make concrete. Geopolymer based cementitious binder was one of the recent research findings in the emerging technologies. The present study is aimed at providing a comprehensive review on the various production processes involved in the development of a geopolymer binder. More studies in the recent past showed a major thrust for wider applications of geopolymer binder towards a cost economic construction practice. This also envisages the reduction of global warming due to carbon dioxide emissions from cement plants. 1. Introduction Research studies in the past had shown that fly ash-based geopolymer has emerged as a promising new cement alternative in the field of construction materials. The term geopolymer was first coined and invented by Davidovits [1] which was obtained from fly ash as a result of geo-polymerization reaction. This was produced by the chemical reaction of aluminosilicate oxides (Si2O5, Al2O2) with alkali polysilicates yielding polymeric Si–O–Al bonds. Hardjito and Rangan [2] demonstrated in their extensive studies that geopolymer based concrete showed good mechanical properties as compared to conventional cement concrete. A comprehensive analysis on the various works done in geopolymer concrete is listed in Table 1. Table 1: Summary of various works done on geopolymer concrete. Geopolymer can be produced with the basic raw materials containing silica and alumina rich mineral composition. Several studies have reported the use of the beneficial utilization of these materials in concrete. Most of the studies investigated the use of alkali activators containing sodium hydroxide and sodium silicate or a potassium hydroxide and potassium silicate. Cheng and Chiu [3] reported the production of geopolymer concrete using slag and metakaolin with potassium hydroxide and sodium silicate as alkaline medium. Palomo et al. [4] produced geopolymers using fly ash with sodium hydroxide and sodium silicate as well as with potassium hydroxide with potassium silicate combinations. The results from the studies exhibited an excellent formation of geopolymer with rapid setting properties. It can be noted that the
Facets of Tunneling: Particle production in external fields
K. Srinivasan,T. Padmanabhan
Physics , 1998,
Abstract: This paper presents a critical review of particle production in an uniform electric field and Schwarzchild-like spacetimes. Both problems can be reduced to solving an effective one-dimensional Schrodinger equation with a potential barrier. In the electric field case, the potential is that of an inverted oscillator -x^2 while in the case of Schwarchild-like spacetimes, the potential is of the form -1/x^2 near the horizon. The transmission and reflection coefficients can easily be obtained for both potentials. To describe particle production, these coefficients have to be suitably interpreted. In the case of the electric field, the standard Bogoliubov coefficients can be identified and the standard gauge invariant result is recovered. However, for Schwarzchild-like spacetimes, such a tunnelling interpretation appears to be invalid. The Bogoliubov coefficients cannot be determined by using an identification process similar to that invoked in the case of the electric field. The reason for such a discrepancy appears to be that, in the tunnelling method, the effective potential near the horizon is singular and symmetric. We also provide a new and simple semi-classical method of obtaining Hawking's result in the (t,r) co-ordinate system of the usual standard Schwarzchild metric. We give a prescription whereby the singularity at the horizon can be regularised with Hawking's result being recovered. This regularisation prescription contains a fundamental asymmetry that renders both sides of the horizon dissimilar. Finally, we attempt to interpret particle production by the electric field as a tunnelling process between the two sectors of the Rindler metric.
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