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Measurement of image intensifier system modulation transfer function by video signal analysis

Medical Physics, 1994
A technique for the measurement of the modulation transfer function (MTF) of image intensifier systems by means of video signal analysis is presented. The MTF can be measured in both horizontal and vertical directions. The method is applicable to routine quality assurance testing in the field.
D W, McRobbie, J J, Nieto-Camero
openaire   +2 more sources

Dual functions of the signal peptide in protein transfer across the membrane

Cell, 1985
Most secretory proteins in both prokaryotic and eukaryotic cells are synthesized from a precursor with an amino-terminal extension of 20 to 25 amino acid residues called a signal peptide. These signal peptides are removed during translocation of the secretory proteins across the membrane. When two precursor structures are fused, the internalized second
J, Coleman, M, Inukai, M, Inouye
openaire   +2 more sources

Signal transfer function of the Knox–Thompson speckle imaging technique

Journal of the Optical Society of America A, 1988
The transfer function associated with the Knox–Thompson speckle imaging technique is investigated. Numerical model transfer functions using log-normal statistics for perturbations of the complex wave front, the near-field approximation, and a Kolmogorov spectrum for atmospheric turbulence statistics are presented. Simple approximations for the transfer
openaire   +1 more source

Application of the time varying transfer function for exact small-signal analysis

PESC '91 Record 22nd Annual IEEE Power Electronics Specialists Conference, 1994
An analysis method for determining the control-to-output linearized describing function of time-interval-modulated switched networks using time-varying system theory was previously proposed by the author. A simplification is now presented which eases the analysis considerably.
openaire   +1 more source

Transforming heat transfer with thermal metamaterials and devices

Nature Reviews Materials, 2021
Ying Li, Wei Li, Tiancheng Han
exaly  

Horizontal gene transfer and adaptive evolution in bacteria

Nature Reviews Microbiology, 2021
Brian J Arnold, William P Hanage
exaly  

Charge-transfer materials for electrochemical water desalination, ion separation and the recovery of elements

Nature Reviews Materials, 2020
Pattarachai Srimuk, Xiao Su, Jeyong Yoon
exaly  

Direct Photocatalyzed Hydrogen Atom Transfer (HAT) for Aliphatic C–H Bonds Elaboration

Chemical Reviews, 2022
Luca Capaldo   +2 more
exaly  

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