Results 11 to 20 of about 67,740 (222)

Development of a time-resolved mirrorless scintillation detector.

open access: yesPLoS ONE, 2021
PurposeWe developed a compact and lightweight time-resolved mirrorless scintillation detector (TRMLSD) employing image processing techniques and a convolutional neural network (CNN) for high-resolution two-dimensional (2D) dosimetry.MethodsThe TRMLSD ...
Wonjoong Cheon   +6 more
doaj   +1 more source

Improving T2*-weighted human cortico-spinal acquisitions with a dedicated algorithm for region-wise shimming

open access: yesNeuroImage, 2023
Cortico-spinal fMRI acquisitions aim to investigate direct interactions between brain and spinal cord, e.g. during motor output or pain processing, by covering both regions in a single measurement.
Ying Chu   +2 more
doaj   +1 more source

Role of the volume conductor on simulations of local field potential recordings from deep brain stimulation electrodes.

open access: yesPLoS ONE, 2023
ObjectiveLocal field potential (LFP) recordings from deep brain stimulation (DBS) electrodes are commonly used in research analyses, and are beginning to be used in clinical practice.
M Sohail Noor   +2 more
doaj   +1 more source

Three-component spherical dual-type electric field strength sensor [PDF]

open access: yesОмский научный вестник
The article proposes a new design solution for a three-component electroinductive spherical electric field strength sensor with sensitive electrodes in the form of spherical digons and their parts.
S. V. Biryukov
doaj   +1 more source

Increasing the length of free-falling path with homogeneous bias field for compact cold atom interferometers by configuring MOT coils

open access: yesAIP Advances, 2020
In a cold atom interferometer, a bias magnetic field, usually generated by a solenoid or a set of coils, is used to select specific Raman transitions of atoms in the interference region, and its inhomogeneity leads to a Zeeman-effect-induced error for ...
Huan-Kai Zhang   +7 more
doaj   +1 more source

Streamlined magnetic resonance fingerprinting: Fast whole-brain coverage with deep-learning based parameter estimation

open access: yesNeuroImage, 2021
Magnetic resonance fingerprinting (MRF) is a quantitative MRI (qMRI) framework that provides simultaneous estimates of multiple relaxation parameters as well as metrics of field inhomogeneity in a single acquisition.
Mahdi Khajehim   +3 more
doaj   +1 more source

A three dimensional magnetohydrodynamic pulse in a transversely inhomogeneous medium [PDF]

open access: yes, 2002
Interaction of impulsively generated MHD waves with a one-dimensional plasma inhomogeneity, transverse to the magnetic field, is considered in the three-dimensional regime.
Nakariakov, V. M. (Valery M.)   +1 more
core   +2 more sources

Characterization of Acoustic Streaming in Gradients of Density and Compressibility [PDF]

open access: yes, 2018
Suppression of boundary-driven Rayleigh streaming has recently been demonstrated for fluids of spatial inhomogeneity in density and compressibility owing to the competition between the boundary-layer-induced streaming stress and the inhomogeneity-induced
Augustsson, Per   +3 more
core   +2 more sources

Pulsational Mapping of Calcium Across the Surface of a White Dwarf [PDF]

open access: yes, 2010
We constrain the distribution of calcium across the surface of the white dwarf star G29-38 by combining time series spectroscopy from Gemini-North with global time series photometry from the Whole Earth Telescope. G29-38 is actively accreting metals from
A. Kanaan   +53 more
core   +3 more sources

An Irregular-Shaped Inward-Outward Ring-Pair Magnet Array With a Monotonic Field Gradient for 2D Head Imaging in Low-Field Portable MRI

open access: yesIEEE Access, 2019
We present a design and the optimization of an irregular-shaped inward-outward (IO) ring-pair magnet array that generates a 1D monotonic field pattern for 2D head imaging in a low-field portable magnetic resonance imaging (MRI) system.
Zhi Hua Ren, Jia Gong, Shao Ying Huang
doaj   +1 more source

Home - About - Disclaimer - Privacy