Suggested Topics within your search.
Suggested Topics within your search.
- Physics 1
-
801
-
802
Enabling beam-scanning antenna technologies for terahertz wireless systems: A review
Published 2025-03-01“…While producing a scannable highly-directive antenna beam proves to be indispensable in the period of microwaves, the significance of such functionality is more critical in the THz era, considering that THz waves have more intractable challenges such as the severity of free-space propagation losses, the susceptibility to atmospheric environments, and the unavailability of efficient signal sources. …”
Get full text
Article -
803
Airborne Strapdown Gravity Survey of Sos Enattos Area (NE Sardinia, Italy): Insights into Geological and Geophysical Characterization of the Italian Candidate Site for the Einstein...
Published 2025-07-01“…Results show that the strapdown system effectively detects gravity anomalies linked to crustal sources down to ~3.5 km, with particular emphasis within the 1–2 km depth range. …”
Get full text
Article -
804
A Survey of Oscillation Localization Techniques in Power Systems
Published 2025-01-01“…This survey focuses on these techniques to localize the source of oscillation in power systems. They can be categorized according to the physical metrics used, such as energy, mode shape, traveling wave, and damping torque. …”
Get full text
Article -
805
Protective effect and mechanism of RSR13 on lung blast injury in rats at high altitude
Published 2024-10-01“…Sixty rats were positioned at 5 m from the explosion source and divided into 5-m blast injury group (n=30) and 5-m RSR13+blast injury group (n=30). …”
Get full text
Article -
806
An experimental investigation of the effect of barrier trench on vibration propagation on a laboratory scale model
Published 2024-10-01“…It was found that vibrations increase due to the superposition of the source and reflected waves in front of the barrier trench. …”
Get full text
Article -
807
Imaging of brain electric field networks with spatially resolved EEG
Published 2025-06-01“…The method is not a variation of the well-known ‘source reconstruction’ methods, but rather a direct solution to the EEG inverse problem based on our recently developed model for brain waves that demonstrates the inadequacy of the standard ‘quasi-static approximation’ that has fostered the belief that such a reconstruction is not physically possible. …”
Get full text
Article -
808
Single‐Hemisphere Oxygen Outflow From Earth's Subauroral Zone
Published 2024-07-01“…Instead, it highlights sunlight‐induced ionization as the mass source and enhanced plasma waves from the magnetotail as the energy source. …”
Get full text
Article -
809
Assessment of earthquake resistance of critical infrastructure objects, taking into account their own harmonics in the explosive spectrum of civil and military characters
Published 2024-06-01“…Confirmation of these results in practice was obtained when critical infrastructure was hit by missile strikes (Kyiv TV tower tower) and in the conditions of blasting operations at quarries, as an example at the Koshchiivske granite quarry of LLC "SIPAN" when assessing the earthquake resistance of critical infrastructure objects, in particular the supports of 330 kW power lines, which are located in the zone of influence of elastic waves. They are based on the formation of patterns of excitation and propagation of elastic waves and determination of their parameters at a distance from the source of excitation (mass explosions at the quarry) using a hardware complex of standard seismic sensors SM-3, a 16-channel analog-to-digital converter (ADC E14-440) of L-Card and a personal computer (PC). …”
Get full text
Article -
810
Microseismic monitoring and assessment of segmented hydraulic fracturing of horizontal wells in coal seam roofs
Published 2025-04-01“…The hydraulic fracturing performance assessment reveals that the microseismic source localization accuracy after wave velocity interpolation was improved and that the vertical discreteness of microseismic events was effectively restricted, with the effective influence radius of various fracturing segments determined at about 90 m. …”
Get full text
Article -
811
Determination of coordinates of the earthquake hypocenter with a known structure of the earth's crust
Published 2022-02-01“…The proposed method, with the known structure of the earth's crust, makes it possible to use all known methods that require information on the travel time differences of seismic waves to spaced seismic sensors and the difference in travel times of longitudinal and transverse seismic waves to the seismic sensor for calculating the coordinates of the earthquake hypocenter. …”
Get full text
Article -
812
Specifics of magnetotelluric studies in Antarctica
Published 2025-07-01“…Electromagnetic noise occurs during strong winds; proximity to the magnetotelluric field source can violate the plane wave principle on which the method is based. …”
Get full text
Article -
813
Automatic Differentiation‐Based Full Waveform Inversion With Flexible Workflows
Published 2025-03-01“…However, its implementation can be rather involved for complex wave equations, objective functions, or regularization. …”
Get full text
Article -
814
Wind Field Retrieval From Co-Polarized SAR Imagery Without External Wind Direction Assistance
Published 2025-01-01“…Obtaining wind direction relies directly or indirectly on external sources, making it impossible to achieve wind field retrieval solely based on co-polarized SAR images. …”
Get full text
Article -
815
Finite Element Modelling of a Flow-Acoustic Coupling in Unbounded Domains
Published 2020-11-01“…The issue, influence of flow on wave propagation, could be adressed using LEE equations, as they take non-uniform mean flow into account. …”
Get full text
Article -
816
-
817
Highly Efficient Biphoton Generation from Thin Dense Atomic Ensemble
Published 2025-04-01“…Strongly correlated bright biphotons are generated via spontaneous four‐wave mixing from a dense atomic ensemble based on the 6S1/2–6P3/2–6D5/2 transition of 133Cs. …”
Get full text
Article -
818
Evolution of fluid expulsion and concentrated hydrate zones across the southern Hikurangi subduction margin, New Zealand: An analysis from depth migrated seismic data
Published 2012-08-01“…Identification of methane sources controlling hydrate distribution and concentrations in continental margins remains a major challenge in gas hydrate research. …”
Get full text
Article -
819
-
820
Design and Numerical Simulation of the Performance of Acoustic Plenum Chamber of a Marine Gas Turbine Air Supply System
Published 2019-11-01“…Additionally, deviations from plane waves considering the effects of flow have been inspected in all cases. …”
Get full text
Article