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1561
On the Rejection of Random Perturbations and the Tracking of Random References in a Quadrotor
Published 2022-01-01“…In this note, the problem of tracking random references and rejecting random perturbations in a quadrotor, both generated by an auxiliary system named exosystem, is solved by extending the deterministic tracking problem to the area of stochastic processes. Besides, it is considered that only a part of the state vector of the quadrotor is available through measurements. …”
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1562
Some Formal Results on Positivity, Stability, and Endemic Steady-State Attainability Based on Linear Algebraic Tools for a Class of Epidemic Models with Eventual Incommensurate Del...
Published 2019-01-01“…Two auxiliary delay-free systems are defined related to the linearization processes around the equilibrium points which correspond to the zero delay, i.e., delay-free, and infinity delay cases. …”
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1563
A Predictive Spatial Model to Quantify the Risk of Air-Travel-Associated Dengue Importation into the United States and Europe
Published 2012-01-01“…The model can be extended to other geographical regions and vector-borne diseases, as well as other network-based processes.…”
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1564
Innovative leadership and sustainability in higher education management
Published 2025-12-01“…Drawing from systems theory, sustainability science, and mathematical logic—including automorphic transformations and fractal reasoning—the model incorporates continuous feedback loops and vector-based structures to simulate institutional processes such as leadership, sensing, and strategic coordination. …”
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1565
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1566
Edge States and Chiral Solitons in Topological Hall and Chern–Simons Fields
Published 2018-02-01“…By applying the Hirota bilinear operator algebra and a current theorem, it is shown that, in contrast to the usual vector solitons, the dynamics of new solutions (chiral vector solitons) has exclusively unidirectional motion. …”
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1567
Evaluation of the phase error in sound intensity measurement
Published 2015-07-01“…The phase error of equipment causes considerable distortion of results, involving changes in the measured values, direction and also the sign of the intensity vector in some cases (see Fig. 11), therefore it is important to interpret it correctly.…”
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1568
Effects of Fabrication Parameters on the Properties of Parts Manufactured with Selective Laser Sintering: Application on Cement-Filled PA12
Published 2019-01-01“…However, the fabrication parameters in the SLS process need to be tailored for each end-use fabricated product. …”
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1569
ABOUT ANALYTICAL METHOD FOR SOLVING THE CAUCHY PROBLEM OF TWO QUASILINEAR HYPERBOLIC EQUATIONS SYSTEM
Published 2018-04-01“…Thus, the solution of the initial-boundary value problem for the system under consideration can be obtained analytically by shifting the initial curve along the trajectories of the given vector field. As an example, the Buckley-Leverett system of equations describing the process of nonlinear one-dimensional two-phase filtration in a porous medium is considered. …”
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1570
Optimal Layer Reinsurance for Compound Fractional Poisson Model
Published 2019-01-01“…It is demonstrated that the optimal retention vector and the maximal adjustment coefficient are not only closely related to the parameter of the fractional Poisson process, but also dependent on the time and the claim intensity, which is different from the case in the classical compound Poisson process. …”
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1571
Comparison of Patterns Shapes and Patterns Texture for Identification of Malaria Parasites in Microscopic Image
Published 2016-11-01“…The comparison is based on the characteristics of the pattern used, the steps being taken in this study is the image quality improvement process, the process of segmentation with Otsu method, feature extraction process on the image data to be tested. …”
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1572
Through-Wall Detection with LS-SVM under Unknown Wall Characteristics
Published 2016-01-01“…Then, TWI problem is cast as a regression one and solved by means of least-squares support vector machine (LS-SVM). The complex scattering process due to the presence of the walls is automatically included in the nonlinear relationship between the feature vector extracted from the target scattered fields and the position of the target. …”
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1573
Optimization of Calculating Invariants in Petri Nets to Support the Creation of Integration Testing Scenarios
Published 2015-02-01“…The article describes a method of finding business process invariants basing on a given model in eEPC notation. …”
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1574
Hydrated Electrons in Phase-Matching Generation of Second-Order Stokes X-Waves in Water
Published 2025-04-01“…These abnormal features of second-order X-waves came from the four-wave mixing process, accompanied by induced intense hydrated electrons via cascade ionization. …”
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1575
Comparison of Language Models in Skills Extraction From Vacancies and Resumes
Published 2024-03-01“…The introduction of language models into human resource management processes can improve the quality and speed of processing large volumes of data, which will lead to a more accurate and faster selection of qualified specialists.…”
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1576
Changes in the Distribution of Thermokarst Lakes on the Qinghai-Tibet Plateau from 2015 to 2020
Published 2025-03-01“…The results provide a scientific reference for the assessment and prediction of dynamic changes in thermokarst lakes on the QTP in the future, which will have important scientific significance for the studies of carbon and water processes in alpine ecosystems.…”
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1577
Scalar-on-Function Mode Estimation Using Entropy and Ergodic Properties of Functional Time Series Data
Published 2025-05-01“…The new proposed estimator is constructed under an ergodicity assumption, which provides a robust alternative to the standard mixing processes in various practical settings. The particular interest of this contribution arises from the difficulty in incorporating the mathematical properties of a functional mixing process. …”
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1578
SHM System for Composite Material Based on Lamb Waves and Using Machine Learning on Hardware
Published 2024-12-01“…To process the complex Lamb wave signals, the system incorporates well-known signal processing (DSP) techniques, including power spectrum density (PSD), wavelet transform, and Principal Component Analysis (PCA), for noise reduction, feature extraction, and data compression. …”
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1579
Identification of Key Modules of Lung Cancer in Gene Regulatory Network using Greedy Modularity Optimization Approach
Published 2024-07-01“…In cancer, modules are considered as clusters of genes and regulatory molecules that play a role in the processes of cancer initiation and progression. These modules usually have a specific gene sequence as a central unit that is important in controlling and regulating cellular processes related to cancer. …”
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1580
The role of wave-particle interactions in cold and warm plasma heating
Published 2025-05-01“…While it is well established that cold plasma density plays a critical role in controlling wave properties - such as amplitude and wave vector - increasing theoretical and observational evidence suggests that cold plasma populations may actively couple with waves, exchanging energy through processes that are not yet fully understood. …”
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