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Modal analysis using a Fourier analyzer, curve-fitting, and modal tuning [PDF]
The proposed modal test program differs from single-input methods in that preliminary data may be acquired using multiple inputs, and modal tuning procedures may be employed to define closely spaced frquency modes more accurately or to make use of ...
Chung, Y. T., Craig, R. R., Jr.
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Fast DOA Estimation Algorithms for Sparse Uniform Linear Array With Multiple Integer Frequencies
IEEE Access, 2018 The sparse uniform linear array (SULA) with larger array aperture is adopted to improve the accuracy of direction of arrival (DOA) estimation with a limited number of physical antennas.
Aihua Liu +3 more
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Interaction Properties of the Periodic and Step-like Solutions of the Double-Sine-Gordon Equation
, 2009 The periodic and step-like solutions of the double-Sine-Gordon equation are investigated, with different initial conditions and for various values of the potential parameter $\epsilon$. We plot energy and force diagrams, as functions of the inter-soliton
Abdorrasoul Gharaati +30 more
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Improved Multi-Faceted Sine Cosine Algorithm for Optimization and Electricity Load Forecasting
ComputersThe sine cosine algorithm (SCA) is a population-based stochastic optimization method that updates the position of each search agent using the oscillating properties of the sine and cosine functions to balance exploration and exploitation.
Stephen O. Oladipo +2 more
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Extremal values of multiple gamma and sine functions
Advances in Mathematics, 2010 Barnes's multiple gamma function \(\Gamma_{r}(x)\) is defined by \[ \Gamma_{r}(x)=\exp\Big(\frac{\partial}{\partial s}\zeta_{r}(s,\,x)\Big|_{s=0}\Big) \;\;\;(x>0) \] where \(\zeta_{r}(s,\,x)\) is the multiple Hurwitz zeta function defined as \[ \zeta_{r}(s,\,x)=\sum_{n_{1},\dots,n_{r}=0}^{\infty}\frac{1}{(n_{1}+\dots + n_{r}+x)^{s}}\;\;\;\;(\text{Re ...
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Ciências Sociais Unisinos, 2019 This article aimed to identify how many are the forms of consumption of acai berry and how important is the fruit in Amazonian contexts, such as the Igarapé-Miri City (PA), by the vision of the city fair. This city was chosen as a research local, because
Flavio Henrique Souza Lobato +1 more
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Log-sine evaluations of Mahler measures, II
, 2011 We continue the analysis of higher and multiple Mahler measures using log-sine integrals as started in "Log-sine evaluations of Mahler measures" and "Special values of generalized log-sine integrals" by two of the authors. This motivates a detailed study
Borwein, David +3 more
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Weierstrass product representations of multiple gamma and sine functions
Kodai Mathematical Journal, 2009 It is well known that the Weierstrass product representation of the Barnes multiple gamma function Γr(z) can be calculated concretely. However, there has been no study on its explicit formulation. In this paper, its simple formulation is achieved. It is applicable to the Weierstrass product representation of the Vigneras multiple gamma function also ...
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Hypertranscendence of the multiple sine function for a complex period
Proceedings of the Japan Academy, Series A, Mathematical Sciences, 2019 It is known that the multiple sine function for a “rational” period satisfies an algebraic differential equation. However, for a non-“rational” period, the differential algebraicity of the multiple sine function is obscure. In this paper, we prove that, if there exists a non-real element in the set $\{\omega_{j}/\omega_{i}|1\leq ...
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Enhancer SINEs Link Pol III to Pol II Transcription in Neurons
Cell Reports, 2017 Summary: Spatiotemporal regulation of gene expression depends on the cooperation of multiple mechanisms, including the functional interaction of promoters with distally located enhancers.
Cristina Policarpi +6 more
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