Closest Keyword Search in Dynamic Multidimensional Data Sets

Adding text to databases opens up many different innovations and functionalities that can be made feasible for keyword-based quests. The application in question focuses on search results that are keyword-marked and that are located in a geographical area. For these datasets, our main goal is to locate groups of points that satisfy search queries. Our team's recommendation is a process we call Projection and Multi Scale Hashing that combines random projection and hashing to provide great scalability and efficiency. This example illustrates how to present algorithms in both an exact and approximate manner. Analyses that take into account experimental and analytical studies show that, with regard to overall efficiency, multi-dimensional hashing offers up to 65 times better results. A point in a dynamic connection multi-dimensional feature space is a typical way to classify an object, and we often describe various objects as a point in a multi-dimensional feature space. In other words, for example, images are described using feature vectors that are comprised of colour components, and a textual description of the image is typically correlated with it (such as tags or keywords)

Effect of annealing temperature on electrical characteristics of ruthenium-based Schottky contacts on n-type GaN

The electrical properties of ruthenium (Ru) and ruthenium/gold (Ru/Au) Schottky contacts on n-type GaN are investigated as a function of annealing temperature by current--voltage (I--V) and capacitance--voltage (C--V) techniques. The Schottky barrier height of as-deposited Ru/n-GaN is found to be 0.88 eV (I--V) and 1.10 eV (C--V) respectively. However, after annealing at 500°C for 1 min in the nitrogen ambient, the decrease in barrier height is quite considerable and found to be 0.80 eV (I--V) and 0.86 eV (C--V). In the case of Ru/Au Schottky diode the measured barrier height is 0.75 eV (I--V) and 0.93 eV (C--V). In contrast to the Ru contacts, it is interesting to note that the barrier height of Ru/Au depends on the annealing temperature. Annealing at 300°C improves the barrier height and the corresponding values are 0.99 and 1.34 eV. Further increase in annealing temperature decreases the barrier height and the respective values are 0.72 and 1.08 eV at 500°C. From the above observations, it is clear that the electrical properties of annealed Ru/Au contacts are improved compared to the as-deposited films. However, Ru Schottky contacts exhibit a kind of thermal stability during annealing

Effect of power-law fluid behavior on momentum and heat transfer characteristics of an inclined square cylinder in steady flow regime

The governing equations describing the momentum and heat transfer phenomena of power-law non-Newtonian fluids over a heated square cylinder at 45° of incidence in the two-dimensional (2-D) steady flow regime are solved numerically. Extensive results on the detailed structure of the flow and temperature fields as well as on the gross engineering parameters are presented over the following ranges of conditions: 0.2≤n≤1; 0.1≤Re≤40 and 0.7≤Pr≤100. At low Reynolds numbers, the flow remains attached to the surface of the cylinder. This seems to occur for all values of power-law index, at least up to about Re=1. On the other hand, twin standing vortices were seen to form at Re=10 for all values of power-law index considered herein. The influence of the Reynolds number and power-law index is delineated on the detailed structure of the flow field (streamlines), wake characteristics and surface pressure distribution as well as on the value of drag coefficients. Similarly, the effect of Prandtl number is studied on forced convective heat transfer for the two commonly encountered boundary conditions, namely, constant temperature or constant heat flux prescribed on the surface of the cylinder. Using the computed numerical results, simple heat transfer correlations are obtained in terms of the Nusselt number as a function of the pertinent governing parameters thereby enabling the prediction of the rate of heat transfer between the fluid and the immersed cylinder. In addition, variation of the local Nusselt number on the surface of the inclined of square cylinder and representative isotherm plots are also presented to elucidate the effect of Reynolds number, Prandtl number and power-law index on the heat transfer phenomenon

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Not AvailableWA-CMS system based rice hybrids are widely adopted in many rice growing countries, including India. Even though it is well known that the trait is controlled by mitochondria, the genes underpinning the trait remain enigmatic. In the present study, a complete genome-wide comparative sequence analysis was performed using draft mitochondrial genomes of WA-CMS and male fertile lines in a step-wise manner, progressively covering 5–10 kb every time through BLASTN tool. The sequence polymorphisms identified in different mitochondrial regions were targeted to develop two different sets of dominant PCR-based markers, one consisting of six markers targeting WA-CMS mitochondria, the other set consisting of five markers targeting male fertile mitochondria in addition to development of a set of eight co-dominant PCR-based markers targeting both the genomes. When a set of candidate genes/ORFs reported earlier to be associated with WA-CMS trait in rice were analyzed through RT-PCR of RNA isolated from immature rice florets, it was observed that the chimeric ORF, WA352 is expressed only in WA-CMS line and hybrid (i.e. genotypes containing sterile mitochondria), indicating it’s candidacy for the WA-CMS trait. Targeting the functional nucleotide polymorphism between WA-CMS and maintainer mitochondria with respect to WA352, two dominant markers, one targeting sterile and another targeting fertile mitochondria were developed. In addition, a robust, codominant functional marker targeting the candidate gene was also developed and validated for its utility in identification of genetic impurities in seed lots of WA-CMS linesICAR, DBT, DS