Results 21 to 30 of about 4,497,800 (307)
STUDY OF SIGNIFICANCE OF PHASE MASK IMAGE IN ACUTE STROKE PATIENTS
Malang Neurology Journal, 2021 Background: Phase images contains information regarding local susceptibility changes between the tissues, which can help measure the iron and other content which changes the local field.
Krishna Teja Nerella +2 more
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Mask Wearing Behavior, Type of Mask, Frequency Replacement of Mask, and Duration of Mask Wearing with Skindemic [PDF]
, 2022 One of the health protocols to prevent the occurrence of being infected with the coronavirus is using a mask. The use of masks can be a skin disorder, one of which triggers the emergence of a skin epidemic, especially if you don’t pay attention to ...
Wardani, Erika Martining +3 more
core
An empirical and theoretical investigation into the psychological effects of wearing a mask [PDF]
, 1999 A review of the literature shows that the wearing of a mask has been hypothesised to bring about four main psychological effects: disinhibition, transformation, facilitation of the expression of aspects of the wearer’s Self, and various psycho-somatic ...
Cooper, Mick
core +3 more sources
Iterative phase retrieval with a sensor mask
Optics Express, 2022 As an important inverse imaging problem in diffraction optics, Fourier phase retrieval aims at estimating the latent image of the target object only from the magnitude of its Fourier measurement. Although in real applications alternating methods are widely-used for Fourier phase retrieval considering the constraints in the object and Fourier domains ...
Li Song, Edmund Y. Lam
openaire +2 more sources
Three-grating monolithic phase-mask for the single-order writing of large-period gratings [PDF]
Journal of the European Optical Society-Rapid Publications, 2011 An optimized achromatic high-efficiency monolithic phase mask is presented whose principle was demonstrated and described in reference [1]. The mask comprises three submicron period diffraction gratings at a single substrate side that create a purely ...
Bourgin Yannick +7 more
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Fabrication of Polymer Optical Fibre (POF) Gratings
Sensors, 2017 Gratings inscribed in polymer optical fibre (POF) have attracted remarkable interest for many potential applications due to their distinctive properties.
Yanhua Luo +5 more
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Phase measurements of EUV mask defects [PDF]
SPIE Proceedings, 2015 Extreme Ultraviolet (EUV) Lithography mask defects were examined on the actinic mask imaging system, SHARP, at Lawrence Berkeley National Laboratory. A quantitative phase retrieval algorithm based on the Weak Object Transfer Function was applied to the measured through-focus aerial images to examine the amplitude and phase of the defects.
Claus, Rene A. +7 more
openaire +2 more sources
Journal of Medical Radiation Sciences, 2018 Introduction While use of a thermoplastic mask during radiotherapy (RT) treatment for head and neck cancer (HNC) is an essential component of safe patient care, there is little understanding of the extent to which this evokes anxiety (i.e. “mask anxiety”)
Jodie L. Nixon +7 more
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UV-Writing of a Superstructure Waveguide Bragg Grating in a Planar Polymer Substrate
Sensors, 2017 We report on the fabrication of a superstructure Bragg grating in a planar polymer substrate. Based on a twofold illumination process an integrated waveguide and a superstructure Bragg grating are subsequently written into bulk polymethylmethacrylate by ...
Manuel Rosenberger +2 more
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