Results 51 to 60 of about 2,225,945 (318)

A Survey on Network Tomography with Network Coding

open access: yes, 2014
The overhead of internal network monitoring motivates techniques of network tomography. Network coding (NC) presents a new opportunity for network tomography as NC introduces topology-dependent correlation that can be further exploited in topology ...
Dai, Bin   +4 more
core   +1 more source

Modelling and simulation of magnetic induction in magnetic particle imaging system [PDF]

open access: yes, 2020
In the last century, tomographic imaging has become an essential tool for disease diagnosis. There are several dominant tomographic imaging methods used for medical application such as computed tomography (CT), magnetic resonance imaging (MRI), positron ...
Birahim, Muhamad Fikri Shahkhirin   +2 more
core  

Onsite Computed Tomography Fractional Flow Reserve in Patients with Suspected Stable Coronary Artery Disease Initial Experience

open access: yesIndian Journal of Radiology and Imaging, 2021
Introduction Computed tomographic coronary angiographic (CTCA) has evolved into a robust technique to detect significant stenosis; however, there is a discordance in the anatomic and functional significance of stenosis.
Atul Kapoor   +2 more
doaj   +1 more source

Quantum Tomography twenty years later

open access: yes, 2015
A sample of some relevant developments that have taken place during the last twenty years in classical and quantum tomography are displayed. We will present a general conceptual framework that provides a simple unifying mathematical picture for all of ...
Asorey, M.   +3 more
core   +1 more source

Fermi surface tomography

open access: yesNature Communications, 2022
AbstractFermi surfaces are essential for predicting, characterizing and controlling the properties of crystalline metals and semiconductors. Angle-resolved photoemission spectroscopy (ARPES) is the only technique directly probing the Fermi surface by measuring the Fermi momenta (kF) from energy- and angular distribution of photoelectrons dislodged by ...
Sergey Borisenko   +21 more
openaire   +7 more sources

Spin tomography [PDF]

open access: yesJournal of Optics B: Quantum and Semiclassical Optics, 2003
We propose a tomographic reconstruction scheme for spin states. The experimental setup, which is a modification of the Stern-Gerlach scheme, can be easily performed with currently available technology. The method is generalized to multi-particle states, analyzing the spin 1/2 case for indistinguishable particles.
Giacomo Mauro D'Ariano   +2 more
openaire   +2 more sources

Advanced Surface Ablation in Mild (Fruste) Keratoconus: A Case Report

open access: yesOphthalmology and Therapy, 2020
Corneal ectasia is a complication of refractive surgery, and keratoconus is a contraindication to this type of procedure. Surface ablation may be an option for selected cases of mild keratoconus, with patient education being fundamental to this treatment
Louise P. G. Esporcatte   +4 more
doaj   +1 more source

Effects of chronic browsing on life‐history traits of an irruptive large herbivore population

open access: yesPopulation Ecology, EarlyView.
This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji   +9 more
wiley   +1 more source

Ovothiol A is the Main Antioxidant in Fish Lens

open access: yesMetabolites, 2019
Tissue protection from oxidative stress by antioxidants is of vital importance for cellular metabolism. The lens mostly consists of fiber cells lacking nuclei and organelles, having minimal metabolic activity; therefore, the defense of the lens tissue ...
Vadim V. Yanshole   +3 more
doaj   +1 more source

Evaluation of the performance of a high-resolution time-of-flight PET system dedicated to the head and breast according to NEMA NU 2-2012 standard

open access: yesEJNMMI Physics, 2022
Background This study evaluated the physical performance of a positron emission tomography (PET) system dedicated to the head and breast according to the National Electrical Manufacturers Association (NEMA) NU2-2012 standard.
Daisuke Morimoto-Ishikawa   +10 more
doaj   +1 more source

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