Results 61 to 70 of about 3,156,249 (386)

Array tomography

open access: yesJournal of Microscopy, 2013
SummaryIn array tomography ordered, ribbon‐like assemblies of ultrathin serial sections are deposited on a solid substrate and imaged afterwards. The resulting images are then aligned and reconstructed into a three‐dimensional representation of the object.
Wacker, I., Schroeder, R. R.
openaire   +4 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

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

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

open access: yesPopulation Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

X-Ray Microcomputed Tomography in Additive Manufacturing: A Review of the Current Technology and Applications

open access: yes3D Printing and Additive Manufacturing, 2018
X-ray microcomputed tomography (microCT) has become an established method of testing and analyzing additively manufactured parts in recent years, being especially useful and accurate for d...
A. Plessis   +3 more
semanticscholar   +1 more source

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

State estimation: direct state measurement vs. tomography

open access: yes, 2013
We compare direct state measurement (DST or weak state tomography) to conventional state reconstruction (tomography) through accurate Monte-Carlo simulations. We show that DST is surprisingly robust to its inherent bias.
Maccone, Lorenzo, Rusconi, Cosimo C.
core   +1 more source

Phase-dispersion optical tomography [PDF]

open access: yes, 2001
We report on phase-dispersion optical tomography, a new imaging technique based on phase measurements using low-coherence interferometry. The technique simultaneously probes the target with fundamental and second-harmonic light and interferometrically ...
Dasari, Ramachandra R.   +3 more
core   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

open access: yesPopulation Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva   +6 more
wiley   +1 more source

Application of a computer vision algorithm to identify foci of demyelination in multiple sclerosis on MRI images

open access: yesСибирский научный медицинский журнал
The research was aimed at analyzing modern algorithms for diagnosing lesions in multiple sclerosis on MRI images. Multiple sclerosis is a severe disease of the central nervous system and ranks first among the causes of disability in patients of young ...
B. N. Tuchinov   +6 more
doaj   +1 more source

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