Results 21 to 30 of about 2,141,937 (313)
Preparation of ZnO/Brucite Functional Composite Powder by the Mechanochemical Method
Frontiers in Materials, 2021 In this experiment, ZnO/brucite composite powder was prepared through the mechanochemical method; further, the properties, particle morphology, and structure of the composite powder were characterized. The results show that mechanical grinding action can
Huan Shuai +4 more
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Adaptive Speaker Recognition Based on Hidden Markov Model Parameter Optimization
IEEE Access, 2020 The Hidden Markov Model (HMM) is a widely used method for speaker recognition. During its training, the composite order of the measurement probability matrix and the number of re-evaluations of the initial model affect the speed and accuracy of a ...
Yangjie Wei
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The changing rules of the composite roughness in drainage pipelines with sediments
Water Supply, 2023 The deposition of sediments with different roughness increases uncertainty in the prediction of effective Manning's n (also known as composite roughness).
Bin Sun +4 more
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Determination of the Optimum formula for Composite Motor Gasoline Octane Number Blending Enhancer
Journal of Engineering, 2019 To decrease the dependency of producing high octane number gasoline on the catalytic processes in petroleum refineries and to increase the gasoline pool, the effect of adding a suggested formula of composite blending octane number enhancer to motor ...
Alaa D. Jawad Al-Bayati +2 more
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Saudi Endodontic Journal, 2021 Introduction: The purpose of this study was to evaluate the effects of different concentrations of chitosan solution used as a final rinse after root canal treatment on the shear bond strength of composite resin to enamel and coronary dentin.
Vanessa Lessa Araújo +6 more
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A Supersymmetric Composite Model of Quarks and Leptons [PDF]
, 1996 We present a class of supersymmetric models with complete generations of composite quarks and leptons using recent non-perturbative results for the low energy dynamics of supersymmetric QCD. In these models, the quarks arise as composite "mesons" and the
Affleck +16 more
core +2 more sources
On the Enumeration and Asymptotic Analysis of Fibonacci Compositions [PDF]
arXiv, 2021 We study Fibonacci compositions, which are compositions of natural numbers that only use Fibonacci numbers, in two different contexts. We first prove inequalities comparing the number of Fibonacci compositions to regular compositions where summands have a maximum possible value.
arxiv
BioResources, 2015 Nickel-Phosphorus (Ni-P) composite coatings were prepared on a poplar veneer surface via a simple electroless nickel (Ni) approach. The substrate deformation, flatness, crystalline structure, and wear resistance of the Ni-P composite coatings were ...
Yanfei Pan, Xin Wang, Jintian Huang
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The crossing number of composite knots
, 2008 It is a very old conjecture that the crossing number of knots is additive under connected sum. In other words, if K#K' is the connected sum of knots K and K', then does the equality c(K#K') = c(K) + c(K') hold? We prove that c(K#K') is at most c(K) + c(K'
Lackenby, Marc
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Distribution of squares modulo a composite number
, 2015 In this paper we study the distribution of squares modulo a square-free number $q$. We also look at inverse questions for the large sieve in the distribution aspect and we make improvements on existing results on the distribution of $s$-tuples of reduced
Aryan, Farzad
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