Home / Advanced Search

  • Title/Keywords

  • Author/Affliations

  • Journal

  • Article Type

  • Start Year

  • End Year

Update SearchingClear
  • Articles
  • Online
Search Results (835)
  • Open Access

    ARTICLE

    Enrichment Procedures for Soft Clusters: A Statistical Test and its Applications

    R.D. Phillips1, M.S. Hossain1, L.T. Watson1,2, R.H. Wynne3, Naren Ramakrishnan1

    CMES-Computer Modeling in Engineering & Sciences, Vol.97, No.2, pp. 175-197, 2014, DOI:10.3970/cmes.2014.097.175

    Abstract Clusters, typically mined by modeling locality of attribute spaces, are often evaluated for their ability to demonstrate ‘enrichment’ of categorical features. A cluster enrichment procedure evaluates the membership of a cluster for significant representation in predefined categories of interest. While classical enrichment procedures assume a hard clustering definition, this paper introduces a new statistical test that computes enrichments for soft clusters. Application of the new test to several scientific datasets is given. More >

  • Open Access

    ARTICLE

    Sensitivity of Dynamic Response of a Simply Supported Functionally Graded Magneto-electro-elastic Plate to its Elastic Parameters

    G. Q. Xie1,2, M. X. Chi1

    CMC-Computers, Materials & Continua, Vol.44, No.2, pp. 123-140, 2014, DOI:10.3970/cmc.2014.044.123

    Abstract Dynamic response sensitivity of a simply supported functionally graded magneto-electro-elastic plates have been studied by combining analytical method with finite element method. The functionally graded material parameters are assumed to obey exponential law in the thickness direction. A series solution of double trigonometric function agreed with the simply supported boundary condition is adopted in the plane of the plate and finite element method is used across the thickness of the plate. The finite element model is established based on energy variational principle. The coupled electromagnetic dynamic characteristics of a simply supported functionally graded magneto- electro-elastic More >

  • Open Access

    ARTICLE

    Quantitative trait loci associated with water deficit tolerance in Arabidopsis thaliana (L.) Heynh.

    Gutiérrez-Díez A1, GE Salinas-García1, L Iracheta-Donjuan2, JA Torres-Castillo1, N Mayek-Pérez3

    Phyton-International Journal of Experimental Botany, Vol.82, pp. 203-208, 2013, DOI:10.32604/phyton.2013.82.203

    Abstract Gene and quantitative trait loci (QTLs) localization in a model species allow to know their organization in the genome, and the possibility for the isolation and cloning of genes with agronomic importance. Seventy-three recombinant inbred lines (RILs) derived from the cross of Arabidopsis thaliana (L.) Heynh. ecotypes Columbia (Col) x Landsberg erecta (Ler) were grown in a greenhouse under contrasting soil moisture conditions (irrigated and water deficits). During their growth, some phenological (days to flowering) and plant growth traits (plant height, and number of nodes and leaves per plant) were measured. Significant differences for plant height More >

  • Open Access

    ARTICLE

    Accumulation of silver nanoparticles and its effect on the antioxidant capacity in Allium cepa L.

    Juárez-Maldonado1 A, JL Rosales-Velázquez2, H Ortega-Ortiz3, M Cabrera-De-la-Fuente1, H Ramírez1, A Benavides-Mendoza1

    Phyton-International Journal of Experimental Botany, Vol.82, pp. 91-97, 2013, DOI:10.32604/phyton.2013.82.091

    Abstract Nanotechnology is currently an important worldwide study field because it provides control on matter at a nanometric scale. In food and agricultural fields, the applications of this technology are in early stages. Onion is one of the main vegetables grown in the world. Onion is a low calorie food which contains a large amount of flavonoids. In this work, silver nitrate application in onion was evaluated. An onion crop was developed at the University Antonio Narro in Saltillo, Mexico. Two methods of silver nitrate application were used (a nutritive solution: 0, 20, 40 and 80… More >

  • Open Access

    ARTICLE

    Evaluation of Stress Environment around Pits in Nickel Aluminum Bronze Metal under Corrosion and Cyclic Stresses

    Ramana M. Pidaparti1, Alex C. Johnson1

    Structural Durability & Health Monitoring, Vol.9, No.1, pp. 87-98, 2013, DOI:10.32604/sdhm.2013.009.087

    Abstract Surface damage in the form of pitting was observed in NiAl Bronze metal subjected to corrosion and cyclic stresses. In order to investigate the stresses surrounding the evolving pits due to corrosion, an image based computational study was carried out. The computational study involves developing an analysis model from the SEM images of corroded pits and then conducting stress analysis. Several computational simulations were carried out with increasing/evolving pits and the corresponding stress environment was obtained. The results obtained indicate that pit profiles (size and height) greatly affect the stress environment and the maximum stresses More >

  • Open Access

    ARTICLE

    Numerical Evalution of Eshelby’s Tensor of Anisotropic Ferromagnetic Shape Memory Alloy and Its Influence on Magnetic Field-induced Strain

    Yuping Zhu1,2, Tao Shi1, Yuanbing Wang1

    CMES-Computer Modeling in Engineering & Sciences, Vol.95, No.6, pp. 501-517, 2013, DOI:10.3970/cmes.2013.095.501

    Abstract Single crystal ferromagnetic shape memory alloy is a kind of new intelligent materials, it shows obvious anisotropy. Micromechanics theory has been used to analyze the whole mechanical behaviors of this material. However, Eshelby’s tensor of this material which plays an important role has still not solved efficiently. Based on the existing micromechanics constitutive model, this paper analyzes the numerical calculation formula of Eshelby’s tensor of anisotropic ferromagnetic shape memory alloy. Adopting the way of Gauss integral, the optimal Gaussian integral points for different inclusion shapes and the corresponding numerical solution of Eshelby’s tensor are obtained.Furthermore, More >

  • Open Access

    ARTICLE

    Local strong form meshless method on multiple Graphics Processing Units

    G. Kosec1,2, P. Zinterhof3

    CMES-Computer Modeling in Engineering & Sciences, Vol.91, No.5, pp. 377-396, 2013, DOI:10.3970/cmes.2013.091.377

    Abstract This paper deals with the implementation of the local meshless numerical method (LMM) on general purpose graphics processing units (GPU) in solving partial differential equations (PDE). The local meshless solution procedure is formulated in a way suitable for parallel execution and has been implemented on multiple GPUs. The implementation is tested on a solution of diffusion equation in a 2D domain. Different setups of the meshless approach regarding the selection of basis functions are tested on an interval up to 2.5 million of computational points. It is shown that monomials are a good selection of More >

  • Open Access

    ARTICLE

    Human umbilical artery smooth muscle exhibits a 2-apb- sensitive capacitative contractile response evoked by vasoactive substances and exprsses mrnas for stim, orai and trpc channelsa

    ANA ROCÍO ROLDÁN PALOMO1, PEDRO MARTÍN1, ALEJANDRO REBOLLEDO1*, NICOLÁS ENRIQUE1, LUIS E. FLORES2, VERÓNICA MILESI1

    BIOCELL, Vol.36, No.2, pp. 73-81, 2012, DOI:10.32604/biocell.2012.36.073

    Abstract After depletion of intracellular Ca2+ stores the capacitative response triggers an extracellular Ca2+ influx through store-operated channels (SOCs) which refills these stores. Our objective was to explore if human umbilical artery smooth muscle presented this response and if it was involved in the mechanism of serotonin- and histamine-induced contractions. Intracellular Ca2+ depletion by a Ca2+-free extracellular solution followed by Ca2+ readdition produced a contraction in artery rings which was inhibited by the blocker of Orai and TRPC channels 2-aminoethoxydiphenyl borate (2-APB), suggesting a capacitative response. In presence of 2-APB the magnitude of a second paired contraction by serotonin… More >

  • Open Access

    ARTICLE

    Leaf margin serration and its taxonomical significance in the genus Hibiscus

    Bhat RB

    Phyton-International Journal of Experimental Botany, Vol.81, pp. 211-213, 2012, DOI:10.32604/phyton.2012.81.211

    Abstract Types of leaf margin serration were investigated in ten species of the genus Hibiscus. Types and frequency of serration varied widely from species to species, from common to occasional to rare. Leaf serration is an important taxonomical feature in Hibiscus. More >

  • Open Access

    ARTICLE

    Variation in agronomic traits and lycopene in advanced tomato (Solanum lycopersicum L.) cultivars

    Gaspar-Peralta P1, JC Carrillo-Rodríguez1, JL Chávez-Servia, AM Vera-Guzmán2, I Pérez-León1

    Phyton-International Journal of Experimental Botany, Vol.81, pp. 15-22, 2012, DOI:10.32604/phyton.2012.81.015

    Abstract In order to evaluate the agronomic behavior, genotypic variation, lycopene content, and other components of fruit quality, eight advanced tomato lines were planted in greenhouses during two crop cycles, August-December 2008 and February-July 2009. Tomato lines showed significant differences in leaf length (LL), stem diameter (SD), number of flowers per branch (FLNB), number of fruits per branch (FRNB), locules per fruit (LPF), and fruit length (FRL), and the greatest phenotypic expression in fruit traits was quantified in August-December 2008. Environmental variance was significantly higher than the genotypic and genotype-environment interaction variances in LL, FRNB, fruits… More >

Displaying 751-760 on page 76 of 835. Per Page