Suggested Topics within your search.
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- Physics 1
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1781
. Historical Analysis of Imam Sajjad's Strategies for Reviving Shiism after the Ashura Event Based on Diffusion Theory
Published 2024-06-01“…Furthermore, diffusion barriers and competing waves serve as mitigating factors that must be addressed in the examination of the phenomenon and its diffusion. …”
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1782
Higher frequency of interstate over international transmission chains of SARS-CoV-2 virus at the Rio Grande do Sul - Brazil state borders
Published 2025-01-01“…Brazil's COVID-19 response has faced challenges due to the continuous emergence of variants of concern (VOCs), emphasizing the need for ongoing genomic surveillance and retrospective analyses of past epidemic waves to reassess and fine tune containment protocols. …”
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1783
FRB 20250316A: A Brilliant and Nearby One-off Fast Radio Burst Localized to 13 pc Precision
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1784
Using a Binary Coding Metasurface to Achieve Polarization‐Dependent Full‐Duplex and Full‐Polarization Receiving
Published 2025-03-01“…Specifically, the designed metasurface is shared by two different feeding sources, and the two sources can independently transmit or receive orthogonally polarized waves through the designed metasurface, hence forming polarization‐dependent full‐duplex; on the other hand, orthogonal components of incoming waves can be received respectively by the two sources, hence forming full‐polarization receiving. …”
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1785
Correction of the excitation equations for hollow waveguides
Published 2019-06-01“…The traditional excitation equations are based at the representation of excitating by extraneous sources field in form the sum of own waves TE ( H ) and TM ( E ) of the hollow waveguide, which transverses components form the complete basis in class of transverses vectors of section this waveguide. …”
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1786
Acoustic Power Radiated by a System of Two Vibrating Circular Membranes Located at the Boundary of Three-Wall Corner Spatial Region
Published 2013-10-01“…External excitations of different surface distributions and different phases have been applied to the sound sources’ surfaces. The influence of the radiated acoustic waves on the membranes’ vibrations has been included. …”
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1787
On generating ultrasounds by laser in polymers
Published 2014-05-01“…The possibility of creating acoustic-point-sources in visco-elastic materials is confirmed. Explanation of the mechanism of generation of ultrasonic waves is proposed. …”
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1788
Underwater Acoustic Imaging of the Sea
Published 2014-12-01“…Acoustic waves are a carrier of information mainly in environments where the use of other types of waves, for example electromagnetic waves, is limited. …”
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1789
ON THE INSTABILITY OF THE RAILWAY VEHICLES
Published 2011-11-01“…The other one is related by the anomalous Doppler effect that can occurs when the train velocity exceeds the phase velocity of the waves induced in the track structure. Some aspects regarding the two sources of instability are presented.…”
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1790
EVALUATING THE EFFECTIVENESS OF DIRECTIONAL RADIATION INTERDIGITAL TRANSDUCER ON INHOMOGENEOUSLY POLARIZED ACOUSTIC LINE
Published 2019-06-01“…With application of connected waves theory the evaluation of directed radiation efficiency of interdigital executed by inhomogeneous polarization piezosoundlead transducer exciting acoustic sources with a phase shift 90 degrees has obtained.…”
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1791
Resilience of mobility network to dynamic population response across COVID-19 interventions: Evidences from Chile.
Published 2025-02-01“…We study population response during the first and second infection waves of the COVID-19 pandemic in Chile and Spain. …”
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1792
Peculiarities of acoustic diagnostic methods in pediatric practice (literature review, own research)
Published 2024-10-01“…Sound, as a physical phenomenon, is the propagation of longitudinal elastic waves in a medium, for example, in the air. Waves with frequencies below 16 Hz are called infrasound, and above 20,000 Hz are called ultrasound, and these waves cannot be perceived by the human ear. …”
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1793
Nonlinear optical physics at terahertz frequency
Published 2024-07-01“…Terahertz (THz) waves have exhibited promising prospects in 6G/7G communications, sensing, nondestructive detection, material modulation, and biomedical applications. …”
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1794
Near-Field Periodic Subwavelength Holey Metallic Plate for Far-Field Superresolution Focusing
Published 2017-01-01“…The proposed near-field structure can be employed to distinguish point-like sources with subwavelength distance and enhance the field strength based on the spoof surface plasmon polaritons theory, and by the simulations of near- and far-field spectrums, it can be found that some near-field evanescent waves carried the superresolution information can be converted to propagation waves and propagate to the far-field. …”
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1795
Mapping indicators of tobacco and related product use: Unveiling challenges and variations in the Eurobarometer surveys over three decades
Published 2025-04-01“…Despite their broad use, certain challenges persist, including inconsistencies in survey timelines and variations in the collected information across waves. This study aims to identify available tobacco and related product indicators, and assess their temporal comparability, to support researchers to better understand the potential uses of these data and their alignment with other sources. …”
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1796
Investigation of the effect of electro-hydraulic pulses on the combustion process of phosphorus sludge
Published 2020-12-01“…Electric discharges in the environment of phosphorus sludge are sources of shock waves, which destroying the structure of phosphorus sludge and contribute to the intensification of the combustion process. …”
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1797
Assessing Coastal Degradation Through Spatiotemporal Earth Observation Data Cubes Analytics and Multidimensional Visualization
Published 2025-06-01“…Recently, the term data cube introduced in the scientific community and frameworks like Google Earth Engine and Open Data Cubes have emerged as a solution to earth observation data harmonization, federation, and exchange framework; however, these sources either completely lack the ability to process climate, meteorological, waves, sea lever rising, etc., data from open sources, like CORDEX and WCRP, or preprocessing is required. …”
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1798
Standing of Parish Priest and Minor Orders in Russia in 1917 — the 1930th.
Published 2018-06-01“…The aim of the work is based on the study of documents, legal sources, theses, and sources of periodicals to trace the change of position of the clergy, not only in cities but also in rural areas, one of the most difficult periods in the history of the Russian Orthodox Church. …”
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1799
Cosmic Ray Muon Navigation for Subsurface Environments: Technologies and Challenges
Published 2025-04-01“…Signal blockage in underground and indoor environments demands the accurate location of anchor points for local positioning, which requires previous deployment. Unlike radio waves, the cosmic ray muons are highly reliable natural signal sources for positioning, remaining immune to spoofing and interference. …”
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1800
Integral Absorbing Boundary Conditions Optimized for Modelling of Acoustic Radiation of Elongated Bodies
Published 2022-01-01“…The boundary conditions are formed using the method of equivalent sources, so the integral relations for the pressure and its gradient are derived. …”
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