Báo cáo hóa học: " Research Article Development and Evaluation of High-Performance Decorrelation Algorithms for the Nonalternating 3D Wavelet Transform" pdf

... systems.Regarding the 3D wavelet transform, Kutil and Uhl haveconducted a study of the software and hardware needs of the 3D wavelet transform [14]. They have centered their study on the classic wavelet ... 2007, Article ID 69384, 11 pagesdoi:10.1155/2007/69384 Research Article Development and Evaluation of High-Performance Decorrelation Algorithms for the Nonalternating 3D Wavelet TransformE. ... containing the lowpass bands (two of thempertaining to the temporal low-frequency bands and the other two pertaining to the temporal high bands) and fourother blocks containing the highpass bands....

Báo cáo hóa học: " Research Article Costs and Advantages of Object-Based Image Coding with Shape-Adaptive Wavelet Transform" ppt

... same for the two coders.7. CONCLUSIONS Wavelet transform is a de facto standard in image coding, and SPIHT is one of the most efficient, simple, and flexible algo-rithms for the encoding of wavelet ... meaning,their interior is typically not uniform (just think of the brightglares within each pepper), and therefore the WT does notbenefit much from the segmentation. On the other hand,when the ... the reduced energycompaction of WT does influence the efficiency of SPIHT,nonetheless it will help us in our analysis. As for the possiblegains, they mirror the losses, since they arise for the...

Báo cáo hóa học: " Research Article Analysis and Design of Timing Recovery Schemes for DMT Systems over Indoor Power-Line Channels" pdf

... H,kdenotes the frequency response of the channel at the frequency of carrier k during the th symbol and Uc,kis the noise value in carrier k at the output of the th DFTperformed in the cth ... reference for the comparison. The bandwidth employed in all the channelsis ﬁxed for each modulation strategy and oscillator. Thesebandwidths values are computed by averaging the optimumbandwidths of ... variations at the output of the phase detector is, and consequently the greater the dispersion in SDR values is. Figure 9 also shows the greatsensitivity of the bit-rate with respect to the bandwidth,...

Báo cáo hóa học: " Research Article Design and Implementation of a Lightweight Security Model to Prevent IEEE 802.11 Wireless DoS Attacks" pdf

... rate for the ACFNCmodel which is identical to the standard model. The summary of comparison between the accuracy rate of the ACFNC model and the standard model is provided inTable 4.6.4. Performance ... comparison: (a) for the disabledhandshake and (b) for the enabled handshake.As the above results show, the forgery beacon frameswith incorrect timestamps have direct impact on the delay of the TSF. ... heend of the attacks. Therefore, in the standard model, delay of the UDP packets after the attacks is higher than the TCPpackets.6.1.2. TCP/UDP Throughput Comparison. The results of the TCP and...

Báo cáo hóa học: " Research Article Boundedness and Nonemptiness of Solution Sets for Set-Valued Vector Equilibrium Problems with an Application" ppt

... Zhong and Huang 40. Therefore, Theorem 4.3 is a generalization of 40, Theorem 4.2. Moreover, by 40, Remark 4.2, Theorem 4.3 ia also a generalizationofTheorems 4.1 and 4.4 due to He 38 and ... function and P  R,fromRemark 3.6, we know that 4.1 and 4.2 in Theorem 4.1 reduce to 4.1 and 4.2 in 40, Theorem 4.1, respectively. Therefore,Theorem 4.1 is a generalization of 40, Theorem ... Remark 4.1,Theorem 4.1 is also a generalization of 39, Theorem 3.1.From Theorem 4.1, we derive the following stability result of the solution set for the vector equilibrium problem.Theorem 4.3....

Báo cáo hóa học: " Research Article Existence and Stability of Antiperiodic Solution for a Class of Generalized Neural Networks with Impulses and Arbitrary Delays on Time Scales" ppt

... impulse. The main purpose of this paper is to study the existence and global exponentialstability of anti-periodic solutions of system 1.1 by using the method of coincidence degreetheory and Lyapunov ... ConclusionsUsing the time scales calculus theory, the coincidence degree theory, and the Lyapunovfunctional method, we obtain suﬃcient conditions for the existence and global exponentialstability of anti-periodic ... networks, and so on. To the best of our knowledge, the known results about the existence of anti-periodic solutions for neural networks are all doneby a similar analytic method, and only good for...

báo cáo hóa học:" Research Article Existence and Nonexistence of Global Solutions of the Quasilinear Parabolic Equations with Inhomogeneous Terms" pot

... obtained.We will prove Theorem 1.1a and b in Sections 3 and 4, respectively. The proof of Theorem 1.2 is included in the proof of Theorem 1.1a.In the following, R and T are two given positive ... nontrivialsolution ux, t of 1.1 blows up in finite time.Remark 1.3. Theorems 1.1 and 1.2 are the extension of the results of 8.Ifweputσ  0inthese theorems, the same results as Theorem 1 in 8 ... independent of R and T, and its value may change from line to line.2. PreliminariesIn this section, we first give the definition of a solution for Problem 1.1 and then cite the comparison theorem and...

báo cáo hóa học:" Research Article Existence and Multiplicity of Positive Solutions of a Boundary-Value Problem for Sixth-Order ODE with Three Parameters" pdf

... Green’s function and then used the fixed point theorem of cone extension orcompression to study the problem. The purpose of this paper is using the idea of 7 to investigate BVP for sixth-order ... and the SH equation was studied by Peletier and Troy 4, Peletier and Rottschäfer5, Tersian and Chaparova 6, and other authors. More precisely, in those papers, the authors studied the ... −1.4.5Therefore, A has the fixed points u1 and u2in Kp\ Kr and KR\ Kp, respectively, which meansthat u1t and u2t are positive solutions of BVP1.6-1.7 and 0 ≤u1≤p ≤u2 .The proof...

Báo cáo hóa học: " Research Article Implementation and Validation of a New Combined Model for Outdoor to Indoor Radio Coverage Predictions" pptx

... case, the amplitude of the equivalent source corresponds to the amplitude of V and the phase of the equivalent source corresponds to the direction of V.3.2.3. Indoor MR-FDPF Prediction. The indoor ... models implies the conversion of the ray launching pathson the border of the buildings, into virtual source flows that will be used as input for the indoor model. The performance of the new combined ... combines the advantages of a full 3D geometricmodel for the outdoor part, and a n indoor accurateFD model where 2D is sufficient due to the flatness of the floors;(ii) only the details of the considered...

Báo cáo hóa học: " Research Article Design and Implementation of a Generic Energy-Harvesting Framework Applied to the Evaluation of a Large-Scale Electronic Shelf-Labeling Wireless Sensor Network" pdf

... (WSNs)are the lifetime and the scale of the deployed networks.Currently, most of the WSNs are battery-powered, so the node’s lifetime is equal to the lifetime of the battery it uses. The vast ... on the testbed and in the simulator. We then present our experimental setup for the ESL use case in Section 7 and the performance evaluation in Section 8. Next, related work is discussed and the ... R4 and R5 to2.5 V on the input of the ADC (the maximum input voltage of ADC4 of the MSP430).5.2. Environment Emulator: Software. We already know that the capacitance (stated in terms of the...

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