Results 11 to 20 of about 196,937 (287)
Static current-sheet models of quiescent prominences [PDF]
The Astrophysical Journal, 1987 A two-dimensional solar prominence model is extended to three-dimensional variations and curved current sheets. The model treats prominences as infinitely thin electric current sheets forming vertical planes supported by a magnetic potential. Equilibrium states are derived by solving Ampere's equation for a discrete current density of a surface where ...
F. Wu, B. C. Low
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Fully-integrated LDO voltage regulator for digital circuits [PDF]
Advances in Radio Science, 2011 Low-dropout (LDO) voltage regulators are widely used to supply low-voltage digital circuits. For recent ultra-low-power microcontroller systems, a fully-integrated LDO without any external capacitance is preferred in order to achieve a fast and energy ...
M. Lüders +3 more
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Continued Neutron Star Crust Cooling of the 11 Hz X-Ray Pulsar in Terzan 5: A Challenge to Heating and Cooling Models? [PDF]
, 2013 The transient neutron star low-mass X-ray binary and 11 Hz X-ray pulsar IGR J17480-2446 in the globular cluster Terzan 5 exhibited an 11-week accretion outburst in 2010.
Altamirano, D. +10 more
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Design of High Performance Hybrid Type Digital-Feedback Low Drop-Out Regulator Using SSCG Technique
IEEE Access, 2021 This paper proposes a high-performance Digital Feedback low-dropout voltage regulator (DF-LDO) for low power applications. In the DF-LDO regulator, digital feedback and applying spectrum spread clock generator (SSCG) technique are used to reduce output ...
Muhammad Asif +6 more
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Electronics Letters, 2021 This paper investigates the electron trapping behaviour after bias stress in GaN high‐electron‐mobility transistors (HEMTs) fabricated on GaN substrate.
Qiang Ma, Yuji Ando, Akio Wakejima
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The Origin of Star Formation in Early-type Galaxies Inferred from Spatially Resolved Spectroscopy
The Astrophysical Journal, 2023 We investigate the origin of star formation activity in early-type galaxies with current star formation using spatially resolved spectroscopic data from the Mapping Nearby Galaxies at Apache Point Observatory in the Sloan Digital Sky Survey (SDSS).
Yun Hee Lee +4 more
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IET Power Electronics, 2023 An ultra‐low quiescent current tri‐mode DC–DC boost converter is proposed in this paper, which can efficiently handle loads from 1 μA to 300 mA, providing 5‐V output from 3 to 4.2‐V input.
Lixia Zheng +6 more
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A Low Dropout Regulator with Low Quiescent Current [PDF]
Advances in Intelligent Systems Research, 2015 This paper introduces a low dropout regulator (LDO) by bipolar process. This LDO is composed of a starting circuit, a bandgap reference, an amplifier and power transistors. The bandgap produced a reference voltage about -1.25V, this voltage will be amplified to -5V by the error amplifier, power transistors and feedback resistances, and the output of ...
Jun Jiang, Xin Xu
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Evaluation and Perspective of Analog Low-Dropout Voltage Regulators: A Review
IEEE Access, 2022 Low-dropout regulators (LDOs) are widely adopted in power management integrated circuits (PMICs) and serve as a bridge between the switching regulators and individual on-chip modules to provide a smooth, regulated output voltage. Compared to digital LDOs
Tan Yee Chyan +7 more
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AP-1 is a component of the transcriptional network regulated by GSK-3 in quiescent cells. [PDF]
PLoS ONE, 2011 The protein kinase GSK-3 is constitutively active in quiescent cells in the absence of growth factor signaling. Previously, we identified a set of genes that required GSK-3 to maintain their repression during quiescence.
John W Tullai +4 more
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