نتایج جستجو برای: by contrast

تعداد نتایج: 7160529  

Journal: :iranian journal of medical physics 0
s. heydarian m.sc. in optometry, faculty of para medical sciences, mashhad university of medical sciences, mashhad, iran , m. jabarvand behrooz associate professor, ophthalmology dept., farabi hospital, tehran university of medical sciences, tehran, iran e. jafarzadehpour assistant professor, optometry dept., faculty of rehabilitation sciences, iran university of medical sciences, tehran, iran r. vahabbi m.sc. in optometry, faculty of rehabilitation sciences, iran university of medical sciences, mashhad, iran

introduction: contrast sensitivity is one of the most important psychophysical tests that may be used for the evaluation of refractive state of eye and retinal image quality. yellow vs. blue color contrast sensitivity may be more suitable in this regard. materials and methods: thirty myopic eyes were considered in this study. yellow vs. blue color contrast sensitivity was evaluated under the sa...

Journal: :European Journal of Echocardiography 2006

Journal: :IEEE Transactions on Circuits and Systems for Video Technology 2013

Journal: :Perception & Psychophysics 2003

Journal: :Frontiers in Behavioral Neuroscience 2012

Magnetic resonance based on molecular imaging allows tracing contrast agents thereby facilitating early diagnosis of diseases in a non-invasive fashion that enhances the soft tissue with high spatial resolution. Recently, the exchange of protons between the contrast agent and water, known as the chemical exchange saturation transfer (CEST) effect, has been measured by applying a suitable pulse ...

Journal: :Journal of the Optical Society of America 1963

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