Báo cáo hóa học: "Research Article The Effect of Listener Accent Background on Accent Perception and Comprehension" potx
Báo cáo hóa học: " Research Article The Effect of a Voice Activity Detector on the Speech Enhancement Performance of the Binaural Multichannel Wiener Filter" ppt
... against microphone gain and phase mismatch, as well as deviations in microphonepositions and variation of speaker position [11]. It onlyrelies on the second-order statistics of the speech and noisesources, ... also on the quality of the noise estimate and this is especially pronounced at very low SNRs innonstationary noise. The noncontinuous collection of noisedata introduces inaccuracies in the noise ... 1). Since the performance of microphone arraysstrongly depends on the spatial characteristics of the inter-fering noise, the system was evaluated both in conditions of directional and diffuse...
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Báo cáo hóa học: "Research Article The Effect of Cooperation on Localization Systems Using UWB Experimental Data" doc
... condition (number of configurations belonging to the condition over the total number of configurationsconsidered). The characterization of the bias for 3,4, and 5walls is not reported because the ... positionswithin the environment, wall thicknesses, and other factors.Ta ble 2 reports the mean and standard deviation of the ranging error for each condition, as well as the frequency of the condition ... function of target position in the absence and presence of priori information (i.e., with the bias and afterremoving the bias), using the best selection for reference beacon.N= 5 beacons are considered.0102030405060708090012345678Number...
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Báo cáo hóa học: " Research Article The Displacement of Base Station in Mobile Communication with Genetic Approach" potx
... describe the number of base stations as well as the position of the basestation,(ii) a chromosome expresses one base station position,(iii) the number of possible base station locations mustbe ... finished.Termination upon convergence compares the previous best- of- generation to the current best -of- generation. If the cur-rent convergence is less than the requested convergence, the reproduction procedure ... its father and mother,cdadk and cmomk. Figure 2 shows the procedure of one childcrossover operation in the proposed algorithm. If one of the parents is NULL, the child receives the other...
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Báo cáo hóa học: " Research Article The Existence of Positive Solution to a Nonlinear Fractional Differential Equation with Integral Boundary Conditions" potx
... on the existence of positive solutions by using fixed point theorem in cones. The proofs are based upon the reduction of problem considered to the equivalent Fredholm integral equation of second ... Equations 136. ConclusionsIn this paper, by using the fixed point theorem of cone, we have investigated the existence of positive solutions for a class of nonlinear fractional differential equations ... Equations14 D. Jiang and C. Yuan, The positive properties of the Green function for Dirichlet-type boundaryvalue problems of nonlinear fractional differential equations and its application,” Nonlinear...
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Báo cáo hóa học: " Research Article The Theory of Reich’s Fixed Point Theorem for Multivalued Operators" pptx
... b, c-contraction on a completemetric space has at least one fixed point see 3.In a recent paper Petrus¸el and Rus introduced the concept of “theory of a metric fixedpoint theorem” and used ... upper semicontinuous, then TY ∈ PcpX, for every Y ∈ PcpX;b the continuity of T implies the continuity of T : PcpX → PcpX. The set of all nonempty invariant subsets of T is ... “Sequences of contractive maps and fixed points,” Pacific Journal of Mathematics, vol. 31, pp. 659–667, 1969.27J. Jachymski and I. J´ozwik, “Nonlinear contractive conditions: a comparison and related...
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Báo cáo hóa học: " Research Article The Methods of Hilbert Spaces and Structure of the Fixed-Point Set of Lipschitzian Mapping" docx
... a Hilbert space and let C be a nonempty bounded closed convex subset of H.Then the mapping A : C → C is continuous.Proof. On the contrary, suppose that there exists x0∈ C and ε0> 0 such ... F and the Lipschitz constant of T tends to 1 if ε ↓ 0.For more information on the structure of fixed point sets see 4, 5 and referencestherein.In 1973, Goebel and Kirk 3 introduced the ... Benavides and Lorenzo Ram´ırez 2 to the case of asymptotically nonexpansive mappings if the space Ewas sufficiently regular. On the other hand it is known that, the set of fixed points of k-lipschitzian...
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Báo cáo hóa học: " Research Article The Existence of Periodic Solutions for Non-Autonomous Differential Delay Equations via Minimax Methods" potx
... apply the twist condition between the zero and at infinityfor f to establish the existence of periodic solutions of 1.2. Under the superlinear conditions1.5, there is no twist condition for ... I2 of Theorem A holds. Now we establish I3 of Theorem A by the following three lemmas.Lemma 2.6. Under the assumptions of Theorem 1.1, i of I3 holds for φ.Proof. From the assumptions ... Proceedings of the NationalAcademy of Sciences of the United States of America, vol. 40, no. 4, pp. 708–713, 1954.2 T. Furumochi, “Existence of periodic solutions of one-dimensional differential-delay...
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Báo cáo hóa học: " Research Article The Existence of Positive Solutions for Third-Order p-Laplacian m-Point Boundary Value Problems with Sign Changing Nonlinearity on Time Scales" ppt
... EquationsTheorem 3.2. Assume that conditions H1 and H2 hold, and suppose that one of the followingconditions holds.H5 There exist ρ1,ρ2, and ρ3∈ 0, ∞ with ρ1<σρ2, and ... 0,u1ni1βiuθi.1.5They established a corresponding iterative scheme for the problem by using the monotoneiterative technique.All the above works were done under the assumption that the nonlinear term isnonnegative. ... isnonnegative. The key conditions used in the above papers ensure that positive solutionis concave down. If the nonlinearity is negative somewhere, then the solution needs nolonger to be concave down....
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Báo cáo hóa học: "Research Article The Solution of Two-Point Boundary Value Problem of a Class of Duffing-Type Systems with Non-C1 Perturbation Term" pdf
... IntroductionMinimax theorems are one of powerful tools for investigation on the solution of differentialequations and differential systems. The investigation on the solution of differential equations and ... systems with non-C1perturbationterm 2–4, the conditions attached to the non-C1perturbation term are that the operatorBu related to the term is self-adjoint and commutes with the operator ... diagonalization matrix and μ1 λ1≤ μ2 λ2≤ ··· ≤ μn λnare the eigenvalues of A B. The proof of Lemma 2.2 is fulfilled.Let ·, · denote the usual inner product on Rn and denote the...
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Báo cáo hóa học: "Research Article The Problem of Scattering by a Mixture of Cracks and Obstacles" pptx
... y2.12is the fundamental solution to the Helmholtz equation in R2,andH10is a Hankel function of the first kind of order zero.By making use of the known jump relationships of the single- and ... continued by Kirsch and Ritter in 4who used the factorization method to reconstruct the shape of the crack from the knowledge of the far-field pattern. In 2003, Cakoni and Colton in 5 considered ... complete the proof of the theorem.Combining Theorems 3.1 and 3.2, we have the followingTheorem 3.3. The boundary integral system 2.56 has a unique solution.Remark 3.4. If we remove the condition...
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