-
581
Polarization-independent wideband meta-material rasorber with wide transmission window based on resistor loaded circular and split ring resonators
Published 2025-02-01“…Our proposed design consists of four modified split ring resonators on the top layer and four lumped resistor of 150 Ω value is connected between them to absorb the incoming EM wave in the out-ofband frequency regime.The circular slotted cut on the lower layer is responsible for in-band transmission. …”
Get full text
Article -
582
Numerical Study of the Effect of Furrows on Biosonar Beamforming in Aselliscus Stoliczkanus Bat
Published 2017-07-01“…The present research focuses on the conspicuous furrows in noseleaf, and our analysis allows to conclude the followings: a) structural details in noseleaf of Aselliscus Stoliczkanus bat can produce acoustic effects even if it is not adjacent to the nostrils, b) the furrows possess frequency-selective characteristics, c) the furrows have the function to manipulate the direction and width of the outgoing ultrasound wave.…”
Get full text
Article -
583
Efficiency Evaluation of Segmentation Algorithms for AFM Images
Published 2022-10-01“…For segmentation, algorithms were used based on wave growth of local maximum regions with their selection in decreasing order of values (without stopping and with stopping at a given level), marker watershed (with automatic placement of markers, under the control of the operator), watershed based on distances, growing areas (without selecting starting points, with the choice of starting points based on extrema), the Vincent – Sulli watershed (classical, with a preliminary calculation of the gradient in an eight-connected area, with the selection of the contours of the areas and their subsequent filling), a two-phase watershed. …”
Get full text
Article -
584
A Deep Learning-Based Time-Frequency Scheme for Ship Detection Using HFSWR
Published 2025-01-01Get full text
Article -
585
Two-Stage Target Detection for Compact HFSWR With Space-to-Depth YOLOv8 and Multiframe ViT
Published 2025-01-01“…Thereafter, target association and pattern selection are applied to collect multiframe image patch sequences for each ROI result. …”
Get full text
Article -
586
Rabbit Dental Abnormalities: Investigation of Conformational Risk Factors in a Pedigree Rabbit Population
Published 2025-03-01Get full text
Article -
587
Gain enhancement wideband CPW antenna based on artificial magnetic conductor
Published 2025-02-01Get full text
Article -
588
Patterns of student socio-emotional development and teacher-student-relationship-quality for high-school students with and without special educational needs: a multigroup latent tr...
Published 2025-07-01“…In addition, we tested whether having SEN or being in a high vs. low selective schools make a difference for the composition of each profile.MethodsTo this end, latent class (LCA) and latent transition analyses (LTA) were conducted with longitudinal data from a three-waves (2019, 2020, and 2021) questionnaire study with N = 807 junior high school students in Switzerland.ResultsFour similar patterns could be identified in both low and high selective schools: “happy” students, feeling generally well (emotionally, socially and cognitively) and well-supported by teachers; “unhappy” students, not feeling well and not supported, “teacher-oriented” students, not feeling well but well-supported by teachers, and finally “unstable” students, drastically changing their perceptions of wellbeing, inclusion and self-concept over time but consistently feeling less reliance on teachers. …”
Get full text
Article -
589
The main strategic documents of the Russian Federation's subjects: analysis, actualization, individualization
Published 2021-08-01“…Based on the analysis of the selected strategic documents, the prerequisites for their actualization are identified. …”
Get full text
Article -
590
Numerical study of electromagnetic field intensity in a partially shielded inhomogeneous half ball
Published 2024-12-01“…Conclusions: the most effective method of focusing the wave in the proposed arrangement of the screen-body system has been selected.…”
Article -
591
The Suggested Reciprocal Relationship between Maximum, Minimum and Optimum Usable Frequency Parameters Over Iraqi Zone
Published 2020-09-01“…The capital Baghdad (44.42oE, 33.32oN) has been selected to represent the transmitter station and many other cities that spread over Iraqi region have represented as receiver stations. …”
Get full text
Article -
592
A Single-End Location Method for Small Current Grounding System Based on the Minimum Comprehensive Entropy Kurtosis Ratio and Morphological Gradient
Published 2025-03-01“…Secondly, the intrinsic mode function component with the smallest entropy kurtosis ratio is selected as the line-mode traveling wave characteristic signal and the zero-mode traveling wave characteristic signal, respectively, and the arrival time of the wave head is accurately calibrated by combining the morphological gradient value. …”
Get full text
Article -
593
The Centre of Attention: A Powerful Radio Galaxy Pinpoints a Near-infrared-dark Protocluster at z ∼ 3.9
Published 2025-01-01Get full text
Article -
594
A Joint Detection and Tracking Paradigm Based on Reinforcement Learning for Compact HFSWR
Published 2025-01-01Get full text
Article -
595
-
596
Advancements in Optical Fiber Sensors for pH Measurement: Technologies and Applications
Published 2025-07-01“…This review offers a comprehensive analysis of recent advances in optical fiber-based pH sensors, covering key techniques such as fluorescence-based, absorbance-based, evanescent wave, and interferometric methods. Innovations in Fiber Bragg Grating and Surface Plasmon Resonance technologies are also examined. …”
Get full text
Article -
597
Nonlinear-Optical Processing of OAM Light States in a Few-Mode Fiber
Published 2025-03-01“…Utilizing the phase-matching conditions of inter-modal four-wave mixing in an elliptical-core few-mode fiber supporting three non-degenerate modes, we experimentally demonstrate schemes for generating orbital-angular-momentum (OAM)-entangled photon pairs with high mode purity and for achieving highly mode-selective frequency conversion of beams in OAM-compatible (LP<sub>11a</sub>, LP<sub>11b</sub>) mode basis. …”
Get full text
Article -
598
COMPLEX ASSESSMENT OF ARTERIES STIFFNESS PARAMETERS AND TRADITIONAL RISK FACTORS AS THE PREDICTORS OF EARLY VASCULAR AGEING SYNDROME
Published 2018-04-01“…In all healthy persons the carotid-femoral pulse wave velocity was within normal range, and in CHD it was higher by 10 m/s. …”
Get full text
Article -
599
Favorable pattern of arterial stiffness and vascular aging in a unique cohort of offspring of early life famine survivors
Published 2023-08-01“…Carotid-femoral pulse wave velocity (cfPWV) was assessed using applanation tonometry (SphygmoCor, AtCor, Australia). …”
Get full text
Article -
600
Glass Penetrating Transparent Surface with Transmission Improvement for 5G Indoor Communications
Published 2025-05-01“…Overall, our measured results indicate that the proposed concepts hold potential as viable solutions for signal filtering at millimeter waves on glass windows.…”
Get full text
Article