Results 51 to 60 of about 2,685,592 (310)

Shunt-capacitor-assisted synchronization of oscillations in intrinsic Josephson junctions stack

open access: yes, 2010
We show that shunt capacitor stabilizes synchronized oscillations in intrinsic Josephson junction stacks biased by DC current. This synchronization mechanism has an effect similar to the previously discussed radiative coupling between junctions, however,
Bulaevskii, L. N.   +3 more
core   +1 more source

Prevalence and Clinical Characteristics of Spontaneous Splenorenal Shunt in Liver Cirrhosis: A Retrospective Observational Study Based on Contrast-Enhanced Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) Scans

open access: yesMedical Science Monitor, 2017
Background This is a retrospective observational study evaluating the prevalence and clinical characteristics of spontaneous splenorenal shunt in liver cirrhosis.
X. Qi   +11 more
semanticscholar   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

open access: yesAdvanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong   +16 more
wiley   +1 more source

The role of perfusion and diffusion MRI in the assessment of patients affected by probable idiopathic normal pressure hydrocephalus. A cohort-prospective preliminary study

open access: yesFluids and Barriers of the CNS, 2017
Background Invasive tests measuring resistance to cerebral spinal fluid (CSF) outflow and the effect of temporary drainage of CSF are used to select candidates affected by idiopathic normal pressure hydrocephalus (iNPH) for shunt surgery.
Francesco Tuniz   +6 more
doaj   +1 more source

Common features of vortex structure in long exponentially shaped Josephson junctions and Josephson junctions with inhomogeneities

open access: yes, 2006
We study vortex structure in three different models of long Josephson junctions: exponentially shaped Josephson junction and Josephson junctions with resistor and shunt inhomogeneities in barrier layer.
Barone   +10 more
core   +1 more source

Impedance analysis of new PS internal dump design [PDF]

open access: yes, 2018
The High Luminosity Large Hadron Collider (HL-LHC) project at CERN calls for increasing beam intensity in the injector chain. In the Proton Synchrotron (PS), a pre-injector of the LHC, these intensities can result in beam instabilities and potential RF ...
Popovic, Branko   +2 more
core   +1 more source

Electro-Magnetic Shunt Damping with a Digital Virtual Impedance Circuit

open access: yes, 2012
Electro-magnetic actuators have potentials of sensor-less vibration control due to the abilities of simultaneous actuation and sensing. This paper discusses a method of the electro-magnetic shunt damping with a digital virtual impedance circuit realizing
K. Takagi, T. Inoue, Tomoya Miyachi
semanticscholar   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Vortex-assisted photon counts and their magnetic field dependence in single-photon detectors

open access: yes, 2012
We argue that photon counts in a superconducting nanowire single-photon detector (SNSPD) are caused by the transition from a current-biased metastable superconducting state to the normal state. Such a transition is triggered by vortices crossing the thin
A. I. Larkin   +7 more
core   +1 more source

Stored Electromagnetic Energy and Antenna Q [PDF]

open access: yes, 2012
Decomposition of the electromagnetic energy into its stored and radiated parts is instrumental in the evaluation of antenna Q and the corresponding fundamental limitations on antennas.
Gustafsson, Mats, Jonsson, B. L. G.
core   +1 more source

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