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16661
Dynamic and Static Properties of Aqueous NaCl Solutions at 25°C as a Function of NaCl Concentration: A Molecular Dynamics Simulation Study
Published 2020-01-01“…We present the result of molecular dynamics (MD) simulations to calculate the molar conductivity Λm= λNa++ λCl− of NaCl in SPC/E water at 25°C as a function of NaCl concentration (c) using Ewald sums employing a velocity Verlet algorithm. It is found that the MD result for Λm with Ewald sum parameter κ = 0.10 Å−1 gives the closest one to the experimental data and that the obtained radial distribution functions gii(r) with κ = 0.10 Å−1 show a dramatic change with a very deep minimum of gNaCl(r) and, as a result, sharp maxima of gNaNa(r) and gClCl(r) at the distance 9.95 Å, which indicates a characteristic of ionic atmosphere, the basis of the Debye–Hückel theory of ionic solutions. …”
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16662
Output Feedback Fractional-Order Nonsingular Terminal Sliding Mode Control of Underwater Remotely Operated Vehicles
Published 2014-01-01“…Meanwhile, the FO-NTSMC algorithm, based on a new proposed fractional-order switching manifold, is designed to stabilize the tracking error to equilibrium points in finite time. …”
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16663
Ambiguous Territory
Published 2018-11-01“…From parasite-vulnerable monocrops to systemic biopolitical violence upon indigenous peoples, these conditions expose the dark and unwanted externalities to the logistical algorithm that we have only recently begun to understand as deeply intertwined with each other and within all life on the planet. …”
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16664
Investigation of hemostasis by thromboelastography in the patient with liver cirrhosis (Clinical case)
Published 2011-12-01“…The differential diagnosis between surgical and coagulopathic nature of bleeding after the invasive intervention helps to choose optimal algorithm of patient management. Presented clinical case illustrates approach to investigation and treatment of such patients.Original positions. …”
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16665
Dynamic Phase Signal Control Method for Unstable Asymmetric Traffic Flow at Intersections
Published 2021-01-01“…Next, a signal control parameter adjustment algorithm for the dynamic phase is constructed to maximize the positive benefits of delay variation. …”
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16666
Graph signal processing based pilot pattern design and channel estimation for OFDM system
Published 2022-09-01“…Orthogonal frequency division multiplexing (OFDM) is one of the key technologies in the physical layer of the internet of things (IoT).Pilot design and channel estimation are key issues in OFDM systems.In view of the problem of performance loss by fixed pilot pattern due to the complexity and variety of IoT communication scenarios, a pilot design and channel estimation scheme based on graph signal processing (GSP) was proposed.Firstly, the time-frequency resource block was modeled as a graph signal, and the channel estimation problem was reformulated into a sampling and reconstruction problem of the graph signal.Then, considering the influence of time-frequency fading, a weighted graph adjacency matrix was designed to construct a graph topology structure based on the time-frequency position.On this basis, the pilot position is selected based on the graph signal sampling theory, a greedy pilot pattern design algorithm based on weighted graph topology was proposed.At the same time, signal reconstruction was performed based on the graph signal reconstruction method, and a channel estimation method based on the graph smoothness constraint was proposed.Compared with the conventional scheme, simulation results show that the proposed method achieves higher channel estimation accuracy in high-speed scenarios of double selective channels, and effectively reduces pilot overhead in low-speed scenarios.…”
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16667
Utilization of metaheuristic-based regression analysis to calculate the modified high-performance concrete's compressive strength
Published 2025-01-01“…In this study, it was employed the equilibrium optimizer (EO) and the arithmetic optimization algorithm (AOA) to identify key regression method variables (i.e., Support vector regression (SVR)) which could be adjusted to improve performance. …”
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16668
An Elliptic Curve Based Schnorr Cloud Security Model in Distributed Environment
Published 2016-01-01“…This paper proposes a virtual machine based cloud model with Hybrid Cloud Security Algorithm (HCSA) to remove the expired content. The HCSA-based auditing improves the malicious activity prediction during the data transfer. …”
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16669
Accuracy-Improved Fault Diagnosis Method for Rolling Bearing Based on Enhanced ESGMD-CC and BA-ELM Model
Published 2024-01-01“…In order to increase the accuracy of fault diagnosis, it proposes a new fault diagnosis method based on enhanced Symplectic geometry mode decomposition with cosine difference factor and calculus operator (ESGMD-CC) and bat algorithm (BA) optimized extreme learning machine (ELM). …”
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16670
Professional self-determination theory of senior pupils in Russian psychology
Published 2021-12-01“…Some researchers focus on the goal and end result of vocational self-determination, while others seek to reveal the algorithm of the process itself and/or its stages. …”
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16671
Performance Analysis and Dimensional Multi-objective Optimization for an Asymmetry 2UPS-UP Parallel Mechanism
Published 2021-09-01“…Furthermore, a multi-objective evolutionary algorithm is employed to solve this problem, and multiple Pareto optimal solutions are obtained.…”
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16672
Fault Diagnosis Method for Bearing of High-Speed Train Based on Multitask Deep Learning
Published 2020-01-01“…Firstly, the operating condition parameters of the high-speed train are analyzed and identified, and the K-means algorithm is used to classify and identify the operating condition of the high-speed train. …”
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16673
Optimum Synthesis of Pencil Beams with Constrained Dynamic Range Ratio
Published 2022-01-01“…By incorporating these problems into a branch and bound algorithm, the procedures for global optimizations are formed which systematically search the space of all coefficient signs. …”
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16674
Design and implementation of state-of-charge estimation based on back-propagation neural network for smart uninterruptible power system
Published 2019-12-01“…Then, the back-propagation neural network is trained by Levenberg–Marquardt algorithm and gradient descent method; and the state of charge of batteries in uninterruptible power system is estimated by the trained back-propagation neural network. …”
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16675
GRAY CORRELATION ANALYSIS OF SURFACE INTEGRITY OF ULTRASONIC-ASSISTED ROLLING GCR15 BEARING STEEL
Published 2020-01-01“…The ultrasonic-assisted rolling test was used to combine the gray theory,response surface method and genetic algorithm to ultrasonically assisted rolling GCr15 bearing steel. …”
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16676
Reliability Assessment of Steel-Concrete Composite Beams considering Metal Corrosion Effects
Published 2020-01-01“…The developed reliability analysis algorithm in this study is verified with previous studies, highlighting the capability of the used method. …”
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16677
A Systematic Method of Interconnection Optimization for Dense-Array Concentrator Photovoltaic System
Published 2013-01-01“…Using measured flux distribution data, each CPV cells’ voltage and current values at three critical points which are at short-circuit, open-circuit, and maximum power point are determined. From there, an algorithm groups the cells into basic modules. The next step is I-V curve prediction, to find the maximum output power of each array configuration. …”
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16678
Computing Assortative Mixing by Degree with the s-Metric in Networks Using Linear Programming
Published 2015-01-01“…We use Lagrangian relaxation and the subgradient algorithm to obtain a solution to the s-metric problem. …”
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16679
Failure Mechanism of Anti-Inclined Karst Slope Induced by Underground Multiseam Mining
Published 2022-01-01“…The Voronoi diagram algorithm was used to discretize the rock blocks in the upper part of the mining area, and the erosion in sliding source area caused by heavy rainfall was simulated by increasing the block density and reducing the joint strength. …”
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16680
A Compact Representation for 3D Animation Using Octrees and Affine Transformations
Published 2010-01-01“…Compared to other methods that use tri-linear interpolation, Principle Component Analysis (PCA), or non-rigid partitioning (e.g., FAMC) our algorithm combines the best attributes in most of them. …”
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