Results 41 to 50 of about 911,002 (345)

Spiral transitions

open access: yesApplied Mathematics-A Journal of Chinese Universities, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Levent, Akin   +2 more
openaire   +2 more sources

A PARALLAX-BASED DISTANCE ESTIMATOR FOR SPIRAL ARM SOURCES [PDF]

open access: yes, 2016
The spiral arms of the Milky Way are being accurately located for the first time via trigonometric parallaxes of massive star-forming regions with the Bar and Spiral Structure Legacy Survey, using the Very Long Baseline Array and the European VLBI ...
M. J. Reid   +3 more
semanticscholar   +1 more source

Minimal Fat Content in Papillary Renal Cell Carcinoma Diagnosed with Dual-Layer Dual-Energy CT

open access: yesDiagnostics, 2023
A 56-year-old man with a previous right nephrectomy for multiple papillary renal cell carcinomas (pRCC) underwent a follow-up CT scan. Using a dual-layer dual-energy CT (dlDECT), we demonstrated the presence of a small amount of fat in a 2.5 cm pRCC that
Velio Ascenti   +6 more
doaj   +1 more source

Simulations of the grand design galaxy M51: a case study for analysing tidally induced spiral structure [PDF]

open access: yes, 2009
We present hydrodynamical models of the grand design spiral M51 (NGC 5194), and its interaction with its companion NGC 5195. Despite the simplicity of our models, our simulations capture the present day spiral structure of M51 remarkably well, and even ...
Agertz   +107 more
core   +3 more sources

Magnetic Field Vector Structure of NGC6946

open access: yesGalaxies, 2019
We studied large-scale magnetic field reversals of a galaxy based on a magnetic vector map of NGC6946. The magnetic vector map was constructed based on the polarization maps in the C and X bands after the determination of the geometrical orientation of a
Kohei Kurahara, Hiroyuki Nakanishi
doaj   +1 more source

SPIRAL PHYLLOTAXIS

open access: yesComputers & Mathematics with Applications, 1989
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Spiral Knots

open access: yesMissouri Journal of Mathematical Sciences, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Brothers, N.   +5 more
openaire   +3 more sources

Adaptive 3D M-QAM Using Cross Polarized Antenna

open access: yesIEEE Access
Wireless communication is a fundamental aspect of everyday life. Modern mobile applications such as the Internet of Things (IoT), high-resolution video streaming, connected cars, smart cities, and telehealth care have a universal presence these days. The
Yousef Ali Abohamra
doaj   +1 more source

Evanescently coupled multimode spiral spectrometer [PDF]

open access: yes, 2016
We designed a high-resolution compact spectrometer based on an evanescently-coupled multimode spiral waveguide. Interference between the modes in the waveguide forms a wavelength-dependent speckle pattern which is used as a fingerprint to identify the ...
B. Redding   +4 more
semanticscholar   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

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