Results 251 to 260 of about 4,510,095 (299)

Hopping‐Mediated Zero‐Bias Photocharge Retention in Solution‐Processed Van Der Waals Heterostructures

open access: yesAdvanced Functional Materials, EarlyView.
Liquid–liquid interface assembly enables the fabrication of solution‐processed MoS2 and WSe2 centimeter‐scale, nanometer‐thick type‐II heterostructures on paper. Interfacial charge separation and hopping‐limited recombination produce rectification and persistent photocharge retention at zero bias.
Aniello Pelella   +11 more
wiley   +1 more source

Sensitivity and cross calibration

European Journal of Nuclear Medicine, 1989
In Positron Emission Tomography it is possible to obtain quantitative information on the distribution of positron emitting radiopharmaceuticals. The different components influencing the sensitivity and the cross calibration of PET systems are discussed especially with respect to the quantitative nature of the PET technique.
Paans, A.M.J, Lamotte, D.W
openaire   +3 more sources

Cross calibration in longitudinal studies

Statistics in Medicine, 2004
AbstractIn a long‐running longitudinal study using complex machinery to obtain measurements, it is sometimes necessary to replace the machine. This can result in lack of continuity in the measurements that can overwhelm any treatment effect or time trend.
Walter T, Ambrosius, Siu L, Hui
openaire   +2 more sources

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