Results 91 to 100 of about 5,574,042 (346)
, 2014 Continuously time variable sources are often characterized by their power spectral density and flux distribution. These quantities can undergo dramatic changes over time if the underlying physical processes change. However, some changes can be subtle and
Ghez, A. M. +3 more
core +1 more source
Large density amplification measured on jets ejected from a magnetized plasma gun [PDF]
, 2007 Observation of a large density amplification in the collimating plasma jet ejected from a coplanar coaxial plasma gun is reported. The jet velocity is ~30 km s^-1 and the electron density increases from ~10^20 to 10^(22–23) m^-3.
Bellan, Paul M. +2 more
core +1 more source
Photospheric Injection of Magnetic Helicity: Connectivity-Based Flux Density Method [PDF]
, 2013 Magnetic helicity quantifies the degree to which the magnetic field in a volume is globally sheared and/or twisted. This quantity is believed to play a key role in solar activity due to its conservation property.
K. Dalmasse +3 more
semanticscholar +1 more source
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
FFC NMR Relaxometer with Magnetic Flux Density Control
Journal of Low Power Electronics and Applications, 2019 This paper describes an innovative solution for the power supply of a fast field cycling (FFC) nuclear magnetic resonance (NMR) spectrometer considering its low power consumption, portability and low cost.
António Roque +4 more
doaj +1 more source
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Comments on Flux and Flux Density
HortScience, 1988 Abstract A recent update supplement of the ASHS Publications Manual (1) states that photosynthetic photon flux density (PPFD) shall now be called photosynthetic photon flux (PPF). This decision appears to be based on a Feature article by Holmes et al. (2), which suggested that flux density was seriously misused to describe flux.
openaire +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Critical heat flux density in diphasic thermosyphons
MATEC Web of Conferences, 2017 The paper presents an analysis of known dependencies for determining the critical heat flux density in diphasic thermosyphons. The critical heat flux density for the created experimental model of thermosyphon were calculated on the basis of the ...
Ponomarev Konstantin O. +2 more
doaj +1 more source
Fermionic currents in AdS spacetime with compact dimensions [PDF]
, 2017 We derive a closed expression for the vacuum expectation value (VEV) of the fermionic current density in a (D+1)-dimensional locally AdS spacetime with an arbitrary number of toroidally compactified Poincare spatial dimensions and in the presence of a ...
Bellucci, S. +2 more
core +3 more sources