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16201
Application of Mill Chatter Component Extraction and Root Cause Diagnosis in the Industrial Cold Rolling Mill
Published 2024-01-01“…To meet the early warning of the third-octave mode chatter in the production line, a new adaptive cuckoo search algorithm variational mode decomposition (CSA-VMD) and transfer entropy–based root cause diagnosis models are proposed. …”
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16202
OPTIMIZATION OF FATIGUE LIFE OF TRANSMISSION SHAFT BASED ON RESPONSE SURFACE METHOD
Published 2022-01-01“…The response surface method and genetic algorithm are used to optimize the structural parameters of the transmission shaft(tooth root fillet, spline transition arc, and arc groove depth). …”
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16203
Using Stacks for Image Segmentation Based on Region Growing
Published 2020-07-01“…Expressions are obtained in the paper that allow one to increase the accuracy of determining the sizes of FIFO and LIFO stacks necessary for storing the coordinates of adjacent pixels in a segmentation algorithm based on growing regions under maximum load conditions. …”
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16204
Health Monitoring System for Nursing Homes with Lightweight Security and Privacy Protection
Published 2017-01-01“…Dual-band RFID, virtual routing location algorithm, and diet and exercise data collection based on RFID were adopted to obtain the location and health information. …”
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16205
V-BAG: A virtual bandwidth aggregation scheme for Internet of Things data
Published 2017-04-01“…The packet scheduler provides an efficient heterogeneous link selection using the proposed scheduling algorithm. The estimator provides an accurate delay and bandwidth estimation of heterogeneous wireless links using network layer information. …”
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16206
Stego on FPGA: An IWT Approach
Published 2014-01-01“…A reconfigurable hardware architecture for the implementation of integer wavelet transform (IWT) based adaptive random image steganography algorithm is proposed. The Haar-IWT was used to separate the subbands namely, LL, LH, HL, and HH, from 8×8 pixel blocks and the encrypted secret data is hidden in the LH, HL, and HH blocks using Moore and Hilbert space filling curve (SFC) scan patterns. …”
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16207
Development of a Nonlinear Integer Optimization Model for Tenant Mix Layout in a Shopping Centre
Published 2020-01-01“…To solve this problem, a nonlinear integer optimization model with defined characteristics was proposed and solved using a genetic algorithm. A shopping centre case study is also presented to verify the performance of the model.…”
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16208
Enumerating 6D supergravities with T ≤ 1
Published 2024-12-01“…Generalizing previous techniques, we describe a general algorithm using multi-hypergraphs and simplicial complexes to systematically enumerate anomaly-free models with gauge groups of any number of simple factors and with hypermultiplets falling into any representations. …”
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16209
Prediction of Dynamic Compressive Strength of Hydraulic Asphalt Concrete Based on BP Neural Network and Response Surface Fitting
Published 2022-01-01“…MATLAB was employed to establish a BP neural network model for the prediction of the compressive strength of hydraulic asphalt concrete.The response surface fitting model was established by the Levenberg-Marquardt method and the general global optimization algorithm,the prediction results of which were then compared with those of the BP neural network.The results show that the correlation coefficient r between the value predicted by the BP neural network model (the response surface fitting model) and the test value is 1.099 5 (1.114 2).Compared with the response surface fitting model having specific expressions,the BP neural network model has higher prediction accuracy.The BP neural network prediction model can be used as an auxiliary means for related experimental research and numerical analysis.…”
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16210
Design and optimization for wireless-powered IRS-aided mobile edge computing system
Published 2023-09-01“…A new design of intelligent reflecting surface (IRS)-aided mobile edge computing (MEC) system was studied, which consisted of a hybrid access point (HAP) connected with an MEC server, an IRS equipped with radio-frequency (RF) energy harvesting (EH) circuits, and a user side with random task arrival.To reduce energy consumption at the user, a novel protocol was proposed first, in which the system was enabled to select a proper operation mode among an EH mode, an IRS-aided task offloading mode, and an IRS-inactive task offloading mode.Then, based on the proposed protocol, an optimization problem was formulated, which aimed at minimizing the amount of consumed energy at the user by optimizing the selection of system operation mode and the resource allocation in each mode.Lyapunov optimization framework was employed to solve the problem to achieve a low-complexity and efficient optimization algorithm.Simulation results show that the proposed scheme can save 50% to 90% of energy consumption for the MEC system as compared with the existing baseline schemes.…”
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16211
Free Vibration Response of a Frame Structural Model Controlled by a Nonlinear Active Mass Driver System
Published 2014-01-01“…In this paper, a nonlinear control strategy based on a modified direct velocity feedback algorithm is proposed for handling stroke limits of an active mass driver (AMD) system. …”
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16212
A numerical framework for simulating fluid-structure interaction phenomena
Published 2014-07-01“…These ingredients are combined through a partitioned staggered explicit strategy, according to an efficient and accurate algorithm recently developed by the authors. The effectiveness of the proposed methodology is tested against two different cases. …”
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16213
Study on the Power Consumption Characteristic and Energy Conservation Potential of Continuously Variable Transmission
Published 2016-01-01“…Overall efficiency optimization control strategy,clamping force slip rate control algorithm and new electric oil pump are studied to determine the energy conservation potentials. …”
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16214
Research of methods for evaluating the effectiveness of public relations activities
Published 2020-12-01“…The author considers the metric of the use value norm used to assess the current level and effectiveness of the company’s communication policy, taking into account the complex of various PR activities. The study gives an algorithm for finding an effective commercial offer in the B2B segment. …”
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16215
An Improved Grey Model with Time Power and Its Application
Published 2022-01-01“…Secondly, the variable coefficient in the whitening equation and the time power are determined by particle swarm optimization algorithm. Two empirical examples are then used to verify the validity of the novel model. …”
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16216
Multi-ray channel modeling for programmable wireless environments in the terahertz band
Published 2019-07-01“…Terahertz communication system based on programmable wireless environment allowed programming customization of electromagnetic wave propagation in the most suitable ways for different wireless devices.It could not only improve serious fading,interference and non-line-of-sight problems,but also significantly enhance the security and privacy of the system.The channel modeling of terahertz wireless communication in programmable wireless environment was focused.Firstly,a multi-ray channel model for terahertz-band programmable wireless environment was established based on ray tracing technology as well as the propagation model of line-of-sight and non-line-of-sight.Then,based on the established propagation model,reflection coefficient,the broadband channel capacity under the water-filling power allocation algorithm and the RMS delayed extension were further studied.The simulation and analysis results show that the programmable wireless environment greatly reduces the influence of path loss and multipath fading in terahertz wireless transmission through active interference in electromagnetic wave transmission,improves the transmission capacity of terahertz communication system,which provides a reference for the later design of terahertz communication system,especially indoor terahertz communication system.…”
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16217
Avoidance High-Frequency Chattering Second-Order Sliding Mode Controller Design: Buck Converter in Wind Power System
Published 2012-01-01“…In order to remove the high frequency chattering problem when the traditional sliding mode achieves convergence, the second order sliding mode algorithm is reviewed firstly. Meanwhile, the Buck converter taken as a step-down converter is usually adopted in wind power system, because of its simple structure and good linearity. …”
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16218
Aeroelastic Flutter and Sliding Mode Control of Wind Turbine Blade
Published 2020-01-01“…The results show that a better control effect can be achieved on the premise of the design of the precise parameters of the controller: the proposed sliding mode control algorithm based on LMI can effectively act on the aeroelastic system of the blade, significantly reduce the vibration frequency, and make the aeroelastic system converge to an acceptable static difference in a short time, which proves the effectiveness of sliding mode control in suppressing high-frequency vibration under high wind speed.…”
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16219
Bandlimited Frequency-Constrained Iterative Methods
Published 2025-01-01“…We find that this iterative method for variable aperture reconstruction is equivalent to solving a bandlimited conjugate gradient descent algorithm.…”
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16220
Time and energy aware virtual network embedding using Bayesian theory analysis
Published 2016-06-01“…Aiming at the energy consumption problem in virtual network embedding,a virtual-network-embedding algorithm was proposed by combining the time and energy aware.Taking the running time during the evaluation of physical nodes and physical paths into account,it considered multiple factors which included the processing time of physical devices,and used probability theory to help analyze the selected probability of each available physical node for a virtual node.During the selection of substrate nodes,the factors of remaining resources,the increment of CPU utilization,the switch state and the amount of extended time of physical nodes were considered.The theory of conditional probability was further used to analyze the importance of available nodes.The factors of the switch state,the amount of extended time and the length of physical paths were also considered.The proposed approach could effectively map the current virtual network request onto a smaller set of nodes and links which are switched on,and also the devices which have less amount of extended time.Experimental results show that the proposed approach has better performance,and can effectively decrease energy consumption comparing with the methods without taking the time factor into consideration.…”
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