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    On nonamenable groups by Su-Shing Chen

    Published 1978-01-01
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    Range-Free Localization Scheme in Wireless Sensor Networks Based on Bilateration by Chi-Chang Chen, Chi-Yu Chang, Yan-Nong Li

    Published 2013-01-01
    “…A low-cost yet effective localization scheme for wireless sensor networks (WSNs) is presented in this study. The proposed scheme uses only two anchor nodes and uses bilateration to estimate the coordinates of unknown nodes. …”
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    Combined Kernel-Based BDT-SMO Classification of Hyperspectral Fused Images by Fenghua Huang, Luming Yan

    Published 2014-01-01
    “…To solve the poor generalization and flexibility problems that single kernel SVM classifiers have while classifying combined spectral and spatial features, this paper proposed a solution to improve the classification accuracy and efficiency of hyperspectral fused images: (1) different radial basis kernel functions (RBFs) are employed for spectral and textural features, and a new combined radial basis kernel function (CRBF) is proposed by combining them in a weighted manner; (2) the binary decision tree-based multiclass SMO (BDT-SMO) is used in the classification of hyperspectral fused images; (3) experiments are carried out, where the single radial basis function- (SRBF-) based BDT-SMO classifier and the CRBF-based BDT-SMO classifier are used, respectively, to classify the land usages of hyperspectral fused images, and genetic algorithms (GA) are used to optimize the kernel parameters of the classifiers. …”
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    Microstructure and properties of silver based cadmium free electrical contact materials by Talijan N., Ćosović V., Stajić-Trošić Jasna, Grujić A., Živković Dragana, Romhanji E.

    Published 2007-01-01
    “…The presented work covers part of experimental results of simultaneous study of microstructure, density, hardness and electrical conductivity of sintered electrical contact materials based of Ag- SnO2 with 8, 10 and 12 mass% SnO2. The mentioned characteristics were analyzed in the function of different sintering regimes and after additional mechanical treatment (forging and rolling). …”
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    Free-Interface Modal Synthesis Based Substructural Damage Detection Method by Shanghong Chen, Wei Lin, Jiexin Yu, Ai Qi

    Published 2014-01-01
    “…The accuracy of the application of free-interface modal synthesis method is evaluated with different retained modes in substructure, and then the effectiveness of the proposed substructure sensitivity method is illustrated through an 11-storey building under both single- and multidamage cases. …”
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    Characteristics of Low Reynolds Number Shear-Free Turbulence at an Impermeable Base by W. H. M. Wan Mohtar, A. ElShafie

    Published 2014-01-01
    “…Shear-free turbulence generated from an oscillating grid in a water tank impinging on an impermeable surface at varying Reynolds number 74≤Rel≤570 was studied experimentally, where the Reynolds number is defined based on the root-mean-square (r.m.s) horizontal velocity and the integral length scale. …”
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    A Numerical Solution to Fractional Diffusion Equation for Force-Free Case by O. Tasbozan, A. Esen, N. M. Yagmurlu, Y. Ucar

    Published 2013-01-01
    “…A collocation finite element method for solving fractional diffusion equation for force-free case is considered. In this paper, we develop an approximation method based on collocation finite elements by cubic B-spline functions to solve fractional diffusion equation for force-free case formulated with Riemann-Liouville operator. …”
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    Fluid Identification Based on NMR Apparent Free Water Porosity Inversion: A Case Study of Paleozoic Tight Sandstone Gas Reservoirs in Western Ordos by Fuqiang Lai, Yuejiao Liu, Xiaopan Kou, Zhaohui Huang, Zhen Chen, Yuanqi Liu, Guoqiang Jiang, Yongqian Zang, Min Wang, Ruyue Wang

    Published 2022-01-01
    “…According to the fluid property identification standard based on nuclear magnetic apparent free water porosity, the high-resistivity water layers were effectively identified and its coincidence rate with the final field test was 10.7% higher than that of the conventional method. …”
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