Results 91 to 100 of about 35,861 (225)

Source structure errors in radio-interferometric clock synchronization for ten measured distributions [PDF]

open access: yes
The effects of source structure on radio interferometry measurements were investigated. The brightness distribution measurements for ten extragalactic sources were analyzed.
Thomas, J. B.
core   +1 more source

Antennas and Receivers in Radio Interferometry

open access: yes, 2016
The primary antenna elements and receivers are two of the most important components in a synthesis telescope. Together they are responsible for locking onto an astronomical source in both direction and frequency, capturing its radiation, and converting it into signals suitable for digitization and correlation. The properties and performance of antennas
Hunter, Todd R., Napier, Peter J.
openaire   +2 more sources

Direct Laser Interference Patterning of Nickel Foils for Enhanced Bubble Nucleation in Oxygen‐Oversaturated Environment

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 5, May 2026.
This study investigates the use of direct laser interference patterning (DLIP) to enhance oxygen bubble nucleation on nickel surfaces by creating periodic microstructures with controlled spatial periods and depths. The results demonstrate that smaller spatial periods (Λ) and deeper features significantly improve bubble density and detachment dynamics ...
Fabian Ränke   +6 more
wiley   +1 more source

Metasurfaces and Metadevices for Topological Electromagnetic Waves

open access: yesAdvanced Physics Research, Volume 5, Issue 5, May 2026.
Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie   +3 more
wiley   +1 more source

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO). XI. Beam-corrected Gas Disk Sizes from Fitting 12CO Moment Zero Maps

open access: yesThe Astrophysical Journal
The inward drift of millimeter–centimeter sized pebbles in protoplanetary disks has become an important part of our current theories of planet formation and, more recently, planet composition as well.
Leon Trapman   +18 more
doaj   +1 more source

Cell Mechanics in Cancer: Integrating Mechanotransduction Pathways Within the Tumor Microenvironment

open access: yesJournal of Cellular Physiology, Volume 241, Issue 5, May 2026.
ABSTRACT Single‐cell mechanical properties such as stiffness, elasticity, and viscosity, are crucial in governing biological processes like migration, proliferation, and differentiation. In cancer, the mechanical properties of cells undergo significant alterations, which contribute to tumor growth, metastasis, and resistance to therapy.
Merve Sevgi   +7 more
wiley   +1 more source

Axisymmetric Modeling of DSHARP Dusty Disks: Asymmetric Structures and Inner-disk Dispersal

open access: yesThe Astrophysical Journal
High-resolution observations of Class II protoplanetary disks frequently reveal annular structures that may indicate the presence of embedded planets.
Masataka Aizawa   +2 more
doaj   +1 more source

NIR/VIS Dual‐Comb Spectroscopy Comparing High and Low Repetition Rate Regimes

open access: yesLaser &Photonics Reviews, Volume 20, Issue 10, 22 May 2026.
This work compares dual‐comb spectroscopy at lower and higher repetition rates, emphasizing the inherent trade‐off between spectral and temporal resolution. The 80 MHz system provides high‐resolution spectra suitable for analyzing complex molecular structures, whereas the free‐running 1 GHz platform enables fast measurements for real‐time trace gas ...
Alexander Eber   +6 more
wiley   +1 more source

Outer Solar System Spacecraft to Probe the μHz Gravitational-wave Frontier

open access: yesThe Astrophysical Journal
The microhertz frequency band of gravitational waves probes the merger of supermassive black holes, as well as many other gravitational-wave phenomena. However, space-interferometry methods that use test masses would require further development of test ...
Matthew McQuinn, Casey McGrath
doaj   +1 more source

Demonstrating the Principles of Aperture Synthesis with the Very Small Radio Telescope [PDF]

open access: yes, 2011
We have developed a set of college-level, table-top labs for teaching the basics of radio interferometry and aperture synthesis. These labs are performed with the Very Small Radio Telescope (VSRT), an interferometer using satellite TV electronics as ...
Arndt, Martina B.   +7 more
core   +1 more source

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