نتایج جستجو برای: ij
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We investigate the navigation problem in lattices with long-range connections and subject to a cost constraint. Our network is built from a regular two-dimensional (d=2) square lattice to be improved by adding long-range connections (shortcuts) with probability P(ij) approximately r(ij)(-alpha), where r(ij) is the Manhattan distance between sites i and j, and alpha is a variable exponent. We in...
An asylum applicant begins with a formal application to the Attorney General for protection.[1] They must show in an interview with an asylum officer that they are a refugee, that they have been persecuted in the country of their nationality, and that they have a well founded fear of future persecution, on account of their race, religion, nationality, membership in a particular social group, or...
A method for the cryopreservation of third-stage infective juveniles (IJ) of Steinernema carpocapsae and Heterorhabiditis bacteriophora was developed. Cryoprotection was achieved by incubating the nematodes in 22% glycerol (S. carpocapsae) or 14% glycerol (H. bacteriophora) for 24 hours, followed by 70% methanol at 0 C for 10 minutes. The viability of S. carpocapsae frozen in liquid nitrogen as...
We consider a matrix pencil whose coefficients depend on a positive parameter ǫ, and have asymptotic equivalents of the form aǫ when ǫ goes to zero, where the leading coefficient a is complex, and the leading exponent A is real. We show that the asymptotic equivalent of every eigenvalue of the pencil can be determined generically from the asymptotic equivalents of the coefficients of the pencil...
and objectives In tutorial 2, we demonstrated the basic steps for deriving the direct boundary integral equation. In this tutorial we will explain, with more examples, the derivation of the direct boundary integral equation for systems of partial differential equations. We will consider two examples: elasticity problems and shear-deformable plate bending problems. 1 Elasticity equations In this...
S. Hofmann and S. Kim established in [HK] the equivalence between the local boundedness property for a parabolic system and the gaussian bound for the corresponding fundamental solution. In the present short note we show that the same equivalence remains true for parabolic Neumann BVP's. Let Ω be a bounded Lipschitz domain of R n and let (a ij) = (a ij (x, t)) ∈ L ∞ (Ω × (0, ∞)) n×n satisfying ...
where Cij = 1 1+λ ( uiujβ lilj √ α ), C ′ ij = 1 (1+λ)α(lilj) , and the model converges to the optimal model, then the MSE of λG(wt) is smaller than the MSE of G(wt) in approximating Hessian H(wt). Proof: For simplicity, we abbreviate E(Y |x,w∗) as E, Gt as G(wt) and Ht as H(wt). First, we calculate the MSE of Gt, λGt to approximate Ht for each element of Gt. We denote the element in the i-th r...
The evolution of the Erdos-Rényi (ER) network by adding edges is a basis model for irreversible kinetic aggregation phenomena. Such ER processes can be described by a rate equation for the evolution of the cluster-size distribution with the connection kernel Kij approximately ij , where ij is the product of the sizes of two merging clusters. Here we study that when the giant cluster is discoura...
We report on a test to assess the dynamic brain function at high temporal resolution using magnetoencephalography (MEG). The essence of the test is the measurement of the dynamic synchronous neural interactions, an essential aspect of the brain function. MEG signals were recorded from 248 axial gradiometers while 142 human subjects fixated a spot of light for 45-60 s. After fitting an autoregre...
In this paper, the perturbed continuous-time large-scale system with time delays is represented by an equivalent Takagi-Sugeno type fuzzy model. First, two types of decentralized state feedback controllers are considered in this paper. Based on the Riccati-type inequality, the Razumikhin theorem, and the delay-dependent Lyapunov functional approach, some controller design approaches are propose...
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