Results 31 to 40 of about 9,618,857 (282)

Designing coupled free-form surfaces [PDF]

open access: yesJournal of the Optical Society of America A, 2010
The problem of designing optical systems that contain free-form surfaces is a challenging one, even in the case of designing a single surface. Here we present a method for the coupled design of two free-form reflective surfaces that will have a prescribed distortion. On one hand, the method can be described using traditional vectors and matrices, which
R Andrew, Hicks, Christopher, Croke
openaire   +2 more sources

Quantized form factor shift in the presence of free electron laser radiation [PDF]

open access: yes, 2014
In electron scattering, the target form factors contribute significantly to the diffraction pattern and carry information on the target electromagnetic charge distribution.
Amaro, P.   +5 more
core   +2 more sources

Spectrum of free-form Sudoku graphs

open access: yesOpen Mathematics, 2018
A free-form Sudoku puzzle is a square arrangement of m ×m cells such that the cells are partitioned into m subsets (called blocks) of equal cardinality. The goal of the puzzle is to place integers 1, . .
Abudayah Mohammad   +2 more
doaj   +1 more source

Autonomous Tissue Scanning under Free-Form Motion for Intraoperative Tissue Characterisation

open access: yes, 2020
In Minimally Invasive Surgery (MIS), tissue scanning with imaging probes is required for subsurface visualisation to characterise the state of the tissue. However, scanning of large tissue surfaces in the presence of deformation is a challenging task for
Cartucho, Joao   +2 more
core   +1 more source

A Free-Form Lensing Grid Solution for A1689 with New Mutiple Images [PDF]

open access: yes, 2014
Hubble Space Telescope imaging of the galaxy cluster Abell 1689 has revealed an exceptional number of strongly lensed multiply-imaged galaxies, including high-redshift candidates.
Benitez, N.   +8 more
core   +2 more sources

Numerically Stable form of Green’s Function for a Free-Free Uniform Timoshenko Beam

open access: yesMathematics, 2022
Beam models are widely applied in civil engineering, transport, and industry because the beams are basic structural elements. When dealing with the high-order modes of beam in the context of applying the modal analysis method, the numerical instability ...
Traian Mazilu
doaj   +1 more source

From Biosynthesis to Regulation: Recent Advances in the Study of Fruit-Bound Aroma Compounds

open access: yesHorticulturae
Aroma volatiles constitute the primary molecular basis of fruit flavor quality, governing sensory attributes and marketability. Based on their chemical states, aroma compounds are categorized into bound and free forms. Bound aroma compounds predominantly
Qiaoping Qin   +8 more
doaj   +1 more source

Assessment of Free-Form Surfaces’ Reconstruction Accuracy

open access: yesMetrology and Measurement Systems, 2017
The paper presents the problem of assessing the accuracy of reconstructing free-form surfaces in the CMM/CAD/CAM/CNC systems. The system structure comprises a coordinate measuring machine (CMM) PMM 12106 equipped with a contact scanning probe, a 3-axis ...
Wójcik Artur   +2 more
doaj   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

Fundamental investigation on free-form optimization of vibration lures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Lure fishing is a special fishing method that using artificial fishing lures as fish baits and has become more and more popular all over the world. Vibration lures are a regular item among fishing lures that perform vibration action in the water for ...
Jin-Xing SHI   +2 more
doaj   +1 more source

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