258 research outputs found
Discrete Wavelet Transformation Implementation in GPU through Register Based Strategy
The significant architectural changes made by Nvidia during the launch of Kepler architecture in 2012, upgraded its GPUs with greater register memory and rich instructions set to have communication between registers through available threads. This created a potential for new programming approach which uses registers for sharing and reusing of data in the context of the shared memory. This kind of approach can considerably improve the performance of applications which reuses implied data heavily. This work is based upon of register-based implementation of the Discrete Wavelet Transform (DWT) with the help of CUDA and openCV. DWT is the data decorrelation approach in the area of video and image coding. Results of this particular approach indicate that this technique performs at least four times better than the best GPU implementation of the DWT in past. Experimental tests also prove that this approach shows the performance close to the GPUs performance limits
Volumetric Behavior of Sodium Saccharin in Water and (0.1, 0.3, and 0.5) m Fructose at (298.15, 303.15, 308.15, and 313.15) K
In order to get the information regarding the sweetener-water and sweetener-sweetener interactions, densities of sodium saccharin in water and (0.1, 0.3, and 0.5) m fructose have been measured at (298.15, 303.15, 308.15, and 313.15) K by the use of bicapillary pycnometer. From density values, partial molar volumes, expansion coefficient, Hepler’s constant, apparent specific volumes, partial molar volumes of transfer, doublet and triplet interaction coefficients have been calculated. From density study, it has been concluded that strong water-sodium saccharin interactions exist. Sodium saccharin is water structure maker. Strong interactions exist between sodium saccharin and fructose. In presence of fructose, the interactions exist between hydrophilic group (–OH, C=O, and –O–) of fructose and sodium ion of sodium saccharin in aqueous solutions of sodium saccharin. All investigated solutions exhibit sweet taste.
DOI: http://dx.doi.org/10.17807/orbital.v9i1.92
Control Natural Language Query Editor Guided by OWL/XML Path
It is become difficult when common user try to access semantic web application or any one ontology database-like gene ontology, plant ontology etc. Because either he/she don’t know about ontology technology or about no of concepts present in the ontology database. So only expert user can handle the applications or database. To avoid this problem, I have developed the Controlled natural language query editor guided by xml path. Here ontology data is get used in the xml file format and then that file is get used to generate ontology tree. Ontology tree is work as suggester for user in the generation of their query. Query then fire on xml/ontology file to retrieve desire result
Performance of Medium Access Control Protocol in WBAN for Energy Conservation
Wireless Communication and Wireless Networking is the popular research in this era. The combination of this is useful method for one step ahead to increase the life of human being who are part of different lifecycle are senior citizen, teen rage and the youth on this world. The issue is to increase the growth of all this living mankind from different serious diseases so the technology and communication is BAN (Body Area Network) through wireless is Wireless Body Area Network. We do the research on the Data link layer of the stack protocol used in WBAN, so to increase the life of battery having the energy with some constraint because one’s the energy is utilized we cannot extend its energy only by replacing the battery so the main innovation for the research will to create the proposed protocol using existing MAC protocol performance so the total energy used for the data transmission should be minimized to increase the battery life. Transmission of data is in different condition may be in Normal, On-demand and Traffic which leads to consume more energy to overcome this there are different MAC protocol for performance in WBAN like S-MAC, Wise-MAC with IEEE 802.15.6 standard
Energy Efficient Rectangular Indexing for Mobile Peer-to-Peer Environment
Now a days in wireless environment there are many challenges. One of them which is need to be addressed in mobile Peer-to-Peer environment is getting the information of interest quickly and efficiently. Wherein whenever the node tries to get the desired data it has to wait too long or have to contact to unnecessary nodes which are not having their data of interest. This causes the node to waste the limited power resources and incurs more cost in terms of energy wastage. Here we proposed an energy efficient rectangular indexing called PMBR (Peer-to-Peer Minimum Bounding Rectangle) which allows the user to get the information of interest in energy efficient manner. We proposed algorithms namely PMBR_DSS, PMBR_HB and PMBR_CP and processed Nearest Neighbor & Range type queries. The experimental results carried out shows that the proposed algorithm PMBR_CP provides the efficient, quick and assured access to information of interest by saving the scarce power resources
Effect of Temperature on Aging of Ferroelectric Lead-Strontium-Zirconate-Titanate Ceramics
The effect of aging on Sr2+ modified Lead Zirconate Titanate (PSZT) ceramics have been studied. Aging was assessed by the measurement of dielectric constant and dielectric loss tangent as a function of time and temperature. Dielectric constant and dielectric loss tangent measured at different temperature range. Absolute rate of aging and relative rate of aging was determined. The PSZT ceramic showed sharp dielectric peak at temperature 300oC. The result showed that with increased temperature both the dielectric constant and rate of aging increased.Defence Science Journal, 2010, 60(6), pp.683-686, DOI:http://dx.doi.org/10.14429/dsj.60.5
Effect of Heating Rate on Electromechanical Properties ofPNN–PZT Solid Solution
Lead nickel niobate–lead zirconate titanate (Pb(Ni1/3Nb2/3)0.5 –Pb(Zr0.15Ti0.35O3), (PNN-PZT))solid solution was synthesised by columbite process. Samples sintered at various heating ratesfor 4 h holding and their effect on electromechanical properties have been studied. When heatingrate was 8 °C/min from room temperature to 900 °C and holding for 4 h at 1280 °C, highest relativepermittivity and piezoelectric charge constant were observed, whereas heating rate of 3.5° C/min and holding for 4 h at 1280 °C have shown inferior electromechanical properties and graincoarsening. The piezoelectric charge constant (d33) ~612 pC/N and dielectric constant (e)~ 5950observed in fast heating rate specimen as against to d33~ 137 pC/N and e~4294. XRD result showsthe formation of pyrochlore-free perovskite phase. Fine grains were observed for fast heatingrate specimens
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