Results 21 to 30 of about 215,562 (263)
General modulation transfer function fitting equation for human eye with contact lens
Kuwait Journal of Science, 2021 In this research, a general equation was derived to represent the modulation transfer function (MTF) of the human eye with the presence of the contact lenses (CL) and during the vision with monochrome or multi-wavelength (polychromatic) light.
Faten Shakor Zainulabdeen +2 more
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Comptes Rendus. Mécanique, 2023 This note is concerned with the dynamics of 1D temperature waves generated by time modulation of a boundary heat flux. It demonstrates how a certain temporal transfer function of both parabolic and low frequency hyperbolic interfacial temperature waves ...
Haidar, Nassar
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Off-set Filtering Effect in SOA Based Optical Access Network [PDF]
Radioengineering, 2016 In-line and reflective semiconductor optical amplifiers (SOA and RSOA) can be effectively utilized as external optical intensity modulators. However the limited modulation bandwidth affects the application possibilities, because next generation access ...
E. Udvary
doaj
Current Directions in Biomedical Engineering, 2017 Imaging in radiation therapy has become an important part of clinical routine. In order to evaluate and compare the image quality of verification images from different imaging modalities, one needs objective criteria like the modulation transfer function
Loot Katharina +4 more
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Physical Review Special Topics. Accelerators and Beams, 2006 In an electron storage ring, coupling between dipole and quadrupole Robinson oscillations modifies the spectrum of longitudinal beam oscillations driven by radio-frequency (rf) generator phase noise. In addition to the main peak at the resonant frequency
R. A. Bosch, K. J. Kleman
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Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Autofocusing Method Based on Dynamic Modulation Transfer Function Feedback
PhotonicsAccurate measurement of key optical system parameters (such as focal length, distortion, and modulation transfer function (MTF)) depends critically on obtaining sharp images.
Zhijing Fang +5 more
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Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
Initial On-Orbit Modulation Transfer Function Performance Analysis for Geostationary Ocean Color Imager [PDF]
Journal of Astronomy and Space Sciences, 2012 The world’s first geostationary ocean color imager (GOCI) is a three-mirror anastigmat optical system 140 mm in diameter. Designed for 500 m ground sampling distance, this paper deals with on-orbit modulation transfer function (MTF)measurement and ...
Eunsong Oh +4 more
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Development and Testing of a Compact Autorefractor Based on Double-Pass Imaging
Sensors, 2022 Autorefraction is an objective way to determine the refractive error of the eye, without the need for feedback by the patient or a well-educated practitioner.
Linus Emmerich +4 more
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