-
1621
Układy wielogałęziowe rurociągów energetycznych
Published 1970-03-01“…The relationships which solve these systems are presented, and the concepts introduced are discussed in the relation to the matrix of incidence, which defines their structure. Further given are the formulae determining the magnitude of the forces, moments, linear and angular displacements and the reduced stresses at any point of the pipeline. …”
Get full text
Article -
1622
Baclone transformation for a system of partial differential equations of the third order
Published 2022-09-01“…An analysis of a given system of equations of the third order is carried out. The general structure of the Backlund transformations is defined in the form of four differential equations. …”
Get full text
Article -
1623
DIAGNOSING THE READINES OF TECHNICAL UNIVERSITY STUDENTS FOR RESEARCH ACTIVITIES
Published 2015-03-01“…The paper is devoted to the technique designed for diagnosing the technical university student’s readiness for research activities that is closely related to the research competence structure. Based on the survey results and literature analysis, the authors considered ten primary components of the readiness in question, and analyzed each component along with the corresponding weight value, mean value, and probability density. …”
Get full text
Article -
1624
Computational and experimental insights into the spectroscopy, electronic states, and molecular docking of (2S)-2,6-diaminohexanoic acid [DAHA]
Published 2025-05-01“…The research encompasses the analysis of optimized chemical structure, vibrations, FMO, ELF, NLO, RDG, etc., to study the molecule's intensive properties, stability, and other biological activities. …”
Get full text
Article -
1625
Design of Parameter Adaptive Suspension Controllers with Kalman Filter for Ride Comfort Enhancement and Motion Sickness Reduction
Published 2025-04-01“…To avoid full-state feedback which is very difficult to implement in a real vehicle, a static output feedback (SOF) control is chosen as a feedback structure. With the SOF structure, linear quadratic SOF and parameter adaptive controllers are designed. …”
Get full text
Article -
1626
Design of efficient generalized digital fractional order differentiators using an improved whale optimization algorithm
Published 2025-07-01“…The proposed method utilizes an improved whale optimization algorithm (IWOA) to compute the optimal coefficients of IIR subfilters of the realization structure. IWOA is developed by incorporating a piecewise linear chaotic mapping (PWLCM) and an adaptive inertia weight based on the hyperbolic tangent function (AIWHT) into the framework of original whale optimization algorithm (WOA). …”
Get full text
Article -
1627
Parasitic Elements Shorted to Ground to Enhance the Bandwidth of a Dual-Polarized Antenna
Published 2022-01-01“…The two dipoles can generate +45°/−45° linear polarizations, respectively. Dual-loop structure is utilized as the arm of the dipole, while four parasitic patches with shorting walls are coupled to the dipoles to extend the operating bandwidth. …”
Get full text
Article -
1628
Self-Tuning Control with Regularized RLS Algorithm for Vibration Cancellation of a Circular Plate
Published 2014-09-01“…In order to avoid such problems, the regularized version of the RLS method has been considered in this paper. By solving the linear system of equations with a non-singular Sylvester matrix, the formulas for the unknown coefficients of the considered PID-type controller structure have been obtained. …”
Get full text
Article -
1629
A Field Theory with Curvature and Anticurvature
Published 2014-01-01“…The theory is a pure geometric one in the sense that material distribution, charge distribution, gravitational and electromagnetic potentials, and other physical quantities are defined in terms of pure geometric objects of the structure used. In the case of pure gravity in free space, the spherical symmetric solution of the field equations gives the Schwarzschild exterior field. …”
Get full text
Article -
1630
Creativity in Context of Deviant Behavior
Published 2019-05-01“…The results of this research appears to be paradoxical, pointing non-linear structure of creativity abilities. By the other words it could be not definitely assert, that low result by creativity tests means low creativity abilities of the respondents with deviant behavior. …”
Get full text
Article -
1631
A Low-Complexity Expectation Propagation Detector for OTFS
Published 2024-01-01“…We propose a low-complexity EP detector based on the sparsity and the block circulant structure of the effective channel covariance matrix in the DD domain. …”
Get full text
Article -
1632
Bifurcation Behaviors of Steady-State Solution to a Discrete General Brusselator Model
Published 2020-01-01“…Moreover, via the Rabinowitz bifurcation theorem, we obtain the global structure of the set of nonconstant solutions under the condition that fs/s2 is nonincreasing in 0,∞. …”
Get full text
Article -
1633
MN-PGSOR Method for Solving Nonlinear Systems with Block Two-by-Two Complex Symmetric Jacobian Matrices
Published 2021-01-01“…For solving the large sparse linear systems with 2×2 block structure, the generalized successive overrelaxation (GSOR) iteration method is an efficient iteration method. …”
Get full text
Article -
1634
Comparative analysis of the measurement parameters of the palatine tonsils according to LC and CBCT data
Published 2023-07-01“…However, СBCT allows to visualize the bounders better, to evaluate the tonsils from both sides, excluding the superimposition of soft tissue contours (soft palate, tongue) and bone structure (mandibular angle).Conclusions. The results show that linear measurements of the tonsils are reliable since there is a positive correlation with the corresponding sagittal parameters on 2D and 3D data. …”
Get full text
Article -
1635
VHF Balanced Amplifier with Lossless Feedbacks
Published 2022-06-01“…Analytical expressions are given for calculating the gain, the input gain compression point, input intercept points of the J-th order, and the noise figure of the structure. The analysis of the performance of the amplifier implemented on the MGA 62563 MMIC showed that, in comparison with other integrated solutions, increased overload capacity and structure linearity are provided. …”
Get full text
Article -
1636
A bearing fault diagnosis method based on hybrid artificial intelligence models.
Published 2025-01-01“…The process employs Maximum Second-order Cyclostationary Blind Deconvolution (CYCBD) to filter out noise from the vibration signals emitted by bearings; secondly, considering the issue with the conventional Harris Hawks Optimization (HHO) algorithm which tends to prematurely converge to local optima, the differential evolution mutation operator is introduced and the escape energy factor is improved from linear to nonlinear in IHHO; then, a double-layer network model based on DBN-ELM is proposed, to avoid the number of hidden layer nodes of DBN from human experience interference, and IHHO is used to optimize DBN structure, which is denoted as IHHO-DBN-ELM method; with the optimal structure is obtained by using a combined IHHO optimized DBN and ELM; in conclusion, the proposed IHHO-DBN-ELM approach is applied to the bearing fault detection using the Western Reserve University's bearing fault dataset. …”
Get full text
Article -
1637
A Theoretical Study of the Docking of Medicines with some Proteins
Published 2023-04-01“…The statistical analysis was used to analyze the descriptors like multiple linear regression analysis performed to derive quantitative structure-activity relationship models which were further evaluated for the values of the prediction. …”
Get full text
Article -
1638
Formation of spatial vegetation patterns in heterogeneous environments.
Published 2025-01-01“…We then propose simple stochastic processes which can explain why and how random exogenous heterogeneity influences the formation of regular and irregular patterns. Finally, we derive linear filters which reproduce the spatial structure and visual appearance of natural patterns well. …”
Get full text
Article -
1639
Safe Path for the Transformation of the Polish Energy System Leading to Its Decarbonization and Reliable Operation
Published 2025-04-01“…The European Union’s energy policy, which aims to achieve climate neutrality by 2050, requires substantial changes in the structure of the energy sources used for power generation. …”
Get full text
Article -
1640
Discovering four space dimensions for the organization of electronic orbitals in a neon atom
Published 2025-01-01“…Experimental results from various aspects are furnished to support this fresh view of atomic structure.…”
Get full text
Article