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1441
Constraint Consensus Methods for Finding Interior Feasible Points in Second-Order Cones
Published 2010-01-01“…We also develop and implement a new backtracking-like line search technique on these methods that attempts to increase the length of the consensus vector, at each iteration, with the goal of finding interior feasible points. …”
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1442
Automation Processes for Efficient Verification of Complex Systems: An Empirical Case Study
Published 2024-12-01“…An automated system integration test process, facilitating iterative regression testing, will leverage the efficiency of the verification test process.…”
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1443
Enlarged current injection model for the power flow solution of unbalanced distribution networks
Published 2025-04-01“…The Newton–Raphson method is then applied to the augmented system of equations, resulting in an iterative process that is solved optimally. All together, this scheme constitutes a novel solution to the power flow problem of unbalanced distribution networks, leveraging its enhanced numerical conditioning to improve the convergence rate. …”
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1444
Advances and utility of digital twins in critical care and acute care medicine: a narrative review
Published 2025-01-01“…The improved computational power and iterative validation of these intelligent tools have enhanced medical education, in silico research, and clinical decision support in critical care settings. …”
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1445
Turing patterns in a networked vegetation model
Published 2024-11-01“…We showed the global existence and uniqueness of the solution via monotone iterative sequence. The parameter space of Turing patterns for plant behavior is obtained based on the analysis of the eigenvalues of the Laplacian of weighted graph, while the amplitude equation determining the stability of Turing patterns is obtained by weakly nonlinear analysis. …”
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1446
A note on computing the generalized inverse A T,S (2) of a matrix A
Published 2002-01-01“…In this note, we remove the above condition. Three types of iterative methods for A T,S (2) are presented if σ(GA|T) is a subset of the open right half-plane and they are extensions of existing computational procedures of A T,S (2), including special cases such as the weighted Moore-Penrose inverse A M,N † and the Drazin inverse AD. …”
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1447
Thermal Elastohydrodynamic Lubrication Analysis of Point Contact for Aviation Transmission
Published 2015-01-01“…The rolling bearings are widely used in the aviation transmission because of the low friction coefficient,high load ability and high reliability.It’s of great significance to study the life and contact analysis of the bearing under heavy load and severe lubrication based on the numerical analysis of thermal elastohydrodynamic lubrication(EHL) in point contact.The numerical calculation of isothermal EHL and thermal EHL models in point contact are carried out by adopting compound direct iteration method.The oil film pressure,thickness and temperature are obtained by means of Fortran,Origin and Matlab software.Synthetically considering the effect of load,speed,material and ellipticity parameter on EHL in point contact,the certain theoretical basis for heavy-load aviation transmission system is provided.…”
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1448
Design and Kinematics Analysis of (2SPS/U)&(2SPS/RR) Type Parallel Humanoid Manipulator
Published 2021-03-01“…The (2SPS/U)&(2SPS/RR) two-stage coupling parallel mechanism is used to drive each joint action In order to obtain its inverse and forward kinematics, the closed vector method and Newton iteration method are used to calculate the positive and negative kinematics solutions of the two-stage parallel mechanism, and then the mechanism configuration of the whole artificial arm is simplified. …”
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1449
Strong and Δ-Convergence Theorems for Common Fixed Points of a Finite Family of Multivalued Demicontractive Mappings in CAT(0) Spaces
Published 2014-01-01“…A Krasnoselskii-type iterative sequence is shown to Δ-converge to a common fixed point of the family Ti,i=1,2,…,m. …”
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1450
Evaluating MapReduce for seismic data processing using a practical application
Published 2012-11-01“…Huge amounts of seismic data undergo complex iterative processing in the oil industry to get knowledge of the earth’s subsurface structure to detect where oil can be found and recovered.To evaluate the suitability of MapReduce for seismic processing algorithms,the algorithm design and implementation of Fresnel tomography on Hadoop MapReduce was described.Experiments demonstrate that MapReduce is approximately 3 times slower than MPI,and tuning the performance of MapReduce is really hard.To expand its applicability to high performance computing for oil industry,MapReduce should be improved in the flexibility and provide the opportunity to exploit fine-grained thread-level parallelism.Finally,research ideas to achieve these objectives were presented.…”
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1451
Nonlinear distortion compensation algorithm aided by channel estimation of memoryless power amplifier for OTFS receiver
Published 2022-12-01“…A compensation algorithm for OTFS receiver was proposed to solve the problem of transmission signal distortion caused by the nonlinear characteristics of power amplifier (PA) in the orthogonal time frequency space (OTFS) system.The channel state information was estimated by Bussgang theorem combined with the complex coefficient polynomial of PA and the average energy of the distortion term.Based on it, the transmitted signal was reconstructed with distortion term and the estimated value was updated for the polynomial normalization.Furthermore, the iterative zero-forcing equalization algorithm was employed to complete adaptive compensation analysis of the nonlinear distortion at the receiver.The results show that the nonlinear influence on transmission signals is reduced, which caused by Saleh and Rapp models, and BER performance of OTFS system is improved effectively.…”
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1452
Joint sparse model based data reconstruction algorithm for wireless sensor network
Published 2016-10-01“…The data of wireless sensor network has strong joint sparse characteristics,by utilizing compressed sensing theory,compressed data by joint encoding,and then reconstructed the data by joint decoding,the sensed data can be gathered with low computational cost.A synchronous subspace pursuit algorithm based on joint sparse model and com-pressed sensing theory was proposed.By utilizing the sparsity of the sensed data,it selected the correct joint subspace and reconstruct the original signal group accurately with fewer observations in a backtracking iterative manner.Com-pared with SCoSaMP algorithm and SP algorithm,the proposed algorithm presents better data reconstruction perform-ance under the conditions of different sparsity and sampling rate.…”
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1453
Path Convergence and Approximation of Common Zeroes of a Finite Family of m-Accretive Mappings in Banach Spaces
Published 2010-01-01“…As a consequence, an iterative scheme is constructed to converge to a common fixed point (assuming existence) of a finite family of pseudocontractive mappings from K to E under certain mild conditions.…”
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1454
BI-DIRECTIONAL EVOLUTIONARY STRUCTURAL OPTIMIZATION USING ADAPTIVE P-VERSION FINITE ELEMENT METHOD
Published 2020-01-01“…According to the error control parameter setting,the element order is improved adaptively through the element energy error analysis,which effectively improves the finite element calculation accuracy,and the sensitivity filtering algorithm and the stabilization strategy are adopted to mitigate the checkerboard and iterative oscillation phenomenon. The feasibility of the method is verified by the example calculation of the minimum compliance topology optimization problem,the results show that the proposed method can improve the accuracy of topology optimization under rougher meshes,and obtain higher optimization efficiency and better optimization results.…”
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1455
Comparison of Gaussian Elimination and Cholesky Decomposition Solving A Linear System Of Equation.
Published 2024“…Some of which are direct methods and others are iterative methods. In this work, we study direct methods specifically Gaussian elimination and Cholesky decomposition and make a comparison between the two. …”
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Thesis -
1456
A Comparison of Gaussian Elimination and Cholesky Decomposition Methods in Solving a System of Linear Equations.
Published 2024“…There are several methods of solving a system of linear equations,. some of which are direct methods and others are iterative methods. In this work, .we study direct methods specifically Gaussian elimination and Cholesky decomposition and make a comparison between the two. …”
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Thesis -
1457
A wideband spectrum sensing approach based on sub-band matching selection
Published 2016-01-01“…Wideband spectrum sensing technology based on compressed sensing can effectively reduce the high sampling rate and the complexity of spectrum sensing.During the sensing process,in order to enhance the reconstruction performance of the spectrum signal,a modified OMP sub-band matching selection algorithm for wideband spectrum reconstruction based on the prior knowledge of boundary information and the block sparse characteristics of wideband frequency signal was proposed.This method can reduce the number of iterations in spectrum reconstruction with OMP algorithm and enhance stability of spectrum reconstruction.Simulation results show that the proposed method can not only improve the accuracy of spectrum reconstruction,but also effectively shorten spectrum sensing timeand achieve better wideband spectrum sensing performance.…”
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1458
On documenting language change as it happens
Published 2024-12-01“…Verbs such as andare ‘to go’, venire ‘to come’ and tornare ‘to return’ develop functional uses and express aspectual meanings, such as culminative, inchoative-imminential and iterative. The research employs corpus analysis to investigate the distribution of these constructions across formal and informal varieties of Italian. …”
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1459
Numerical Solution for the 2D Linear Fredholm Functional Integral Equations
Published 2021-01-01“…Using the proposed method, we get a system of linear algebraic equations which are solved by an iteration method. In the end, the accuracy and applicability of the proposed method are shown through some numerical applications.…”
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1460
A distributed adaptive local searching algorithm for wireless sensor network localization
Published 2016-10-01“…The new position of a sensor is broadcast to neighboring sensors allowing collaboratively to other sensors re-estimate their new positions. The iterative process is repeated until a stopping criterion is reached. …”
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